What actually happens in the operating room during surgery? A surgeon walks you through everything that happens before, during, and after a minimally invasive (laparoscopic and robotic) operation — step by step, and backed by evidence. If you're nervous about an upcoming surgery, or you just want to know what really goes on while you're asleep, this is the complete, honest, behind-the-scenes tour of the OR. You'll see the whole journey:
The most important moments of your surgery may be the onesin which nothing is being cut at all.
Long before the first incision, a carbohydrate drink, atimed antibiotic, and a spoken checklist are already quietly improving the oddsin your favor. Modern surgery has taught us that outcomes are shaped not by onedramatic movement of the scalpel, but by dozens of small, often invisiblesteps.
Each step may reduce risk only slightly on its own. Buttogether, they can make the difference between a smooth recovery and acomplication that keeps you in the hospital for weeks.
So before you ever enter the operating room, understandthis: your surgery has already begun. And by the end of this video, you maynever look at “just a routine operation” the same way again.
Segment 2 — Check-In and the Holding Area
When you walk through the doors on the day of your surgery,the first thing that happens isn’t medical—it’s a conversation.
You’ll check in, and a nurse will ask for your name and dateof birth. Then they’ll ask again. Someone else may ask a third time.
It can feel almost silly. You just told them who you are.But this repetition isn’t a bureaucratic accident. It’s one of the mostimportant safety tools in medicine, deliberately designed to catch a mistakebefore it ever reaches you.
Here’s what’s happening: each time you answer, the team iscomparing your identity with your wristband, your medical record, and yourconsent form. They’re confirming who you are, the exact procedure you agreedto, and the correct site for that procedure.
Your signature on the consent form confirms that youpreviously discussed the procedure—including its risks, benefits, andalternatives—with your medical team. These repeated checks help prevent rarebut serious errors, such as performing the wrong procedure or operating on thewrong site.
Next, someone will place an IV—a small tube in a vein inyour hand or arm. That IV is a quiet workhorse. It allows the team to give youfluids, antibiotics, anesthesia, and, if necessary, emergency medicationswithin seconds.
And here’s the idea I want you to carry with you throughoutthis video: everything happening in this holding area—the questions, thewristband, the IV, and even the drink you may have been given—is part of acoordinated safety strategy called a bundle.
Modern surgery doesn’t rely on one heroic act to produce asafe outcome. It relies on dozens of small, evidence-based steps, each reducingrisk a little further. Together, those steps can significantly reducecomplications and shorten hospital stays.
So the check-in you’re about to experience isn’t merely thewaiting room before the real event.
It is the real event—already underway.
Segment 2a — Pre-Op Medications and the CarbohydrateDrink
Let’s go back to the drink you may have received when youarrived—the one that looks a little like a sports drink.
For generations, patients were told not to eat or drinkanything after midnight. Today, modern evidence supports a different approachfor many patients.
In some cases, you may be allowed to drink clear liquidsuntil a specific time—often up to two hours before anesthesia. This can helpyou arrive hydrated rather than in a prolonged fasting state.
Your surgical team will give you specific instructions aboutwhen to stop drinking.
Some patients are also given a specialized carbohydratebeverage approximately two hours before surgery. This is not simply water or asports drink. It is a specific formula designed to help prepare the body forthe stress of surgery.
Surgery can cause temporary insulin resistance, which mayaffect recovery. Entering surgery in a fed state rather than a prolongedstarved state may help reduce that stress response.
The benefits may include less thirst, hunger, and anxietybefore surgery, as well as less nausea afterward. In some major abdominalprocedures, studies have also shown slightly shorter hospital stays.
This drink is not appropriate for everyone. Patients withdiabetes or other conditions affecting blood sugar, stomach emptying, oraspiration risk may need different instructions.
Your medical team will determine what is safest for you.
Now let’s talk about the medications you may have receivedin the holding area.
These medications are part of a carefully plannedpreoperative protocol. Each one has a specific purpose.
The first purpose is pain control.
Rather than relying primarily on strong narcotics, modernsurgery often uses multimodal analgesia—a combination of non-opioidmedications that address pain through different pathways.
These medications may be given before surgery to controlpain proactively rather than waiting for it to become severe.
Other medications and measures help prevent specificcomplications.
You may receive medication to reduce nausea and vomitingafter anesthesia. Depending on your procedure and personal risk factors, theteam may use blood-thinning medication, leg-compression devices, or both tohelp prevent blood clots.
You may also receive an antibiotic, carefully timed beforethe incision, to reduce the risk of infection. In some cases, you may be askedto wash with a specialized antiseptic such as chlorhexidine.
And here is one of my favorite examples of how surgical carehas changed.
For years, patients were routinely given sedatives beforesurgery. Today, enhanced-recovery protocols often avoid routine sedatives formost patients.
These medications can leave you groggy, confused, and slowerto recover.
The modern philosophy is simple: less is more.
We use the medications with a clear benefit and avoid thosethat may create more problems than they solve.
So that quiet drink and small group of pills are not simplythere to make you comfortable while you wait.
They are part of a carefully designed, evidence-basedplan—with each medication selected, timed, and dosed to make your surgery saferand your recovery smoother.
Segment 2b — The Incentive Spirometer: Taught BeforeSurgery
At some point before surgery, someone will hand you a clearplastic device with a tube and a small piston or ball inside. You’ll be askedto take a slow, deep breath and watch it rise.
This is an incentive spirometer.
And here’s something that surprises many people: the mostvaluable time to learn how to use it is not after surgery. It’s now—beforesurgery.
Let me explain why we teach you while you’re still wideawake and feeling well.
During anesthesia—and later, when you’re lying in bed soreand taking shallow breaths—the tiny air sacs deep inside your lungs can beginto collapse. These air sacs, called alveoli, are essential for normalbreathing.
That collapse is called atelectasis. It is not harmless.Areas of collapsed lung tissue can make it easier for pneumonia to develop.Patients who develop atelectasis may have more than twice the risk ofdeveloping pneumonia.
So one of the important goals of your recovery is simple:keep those air sacs open.
A slow, deep breath, held for a few seconds, helps re-expandthem.
Now, I want to be completely honest with you. The plasticdevice itself is not magic.
When researchers study the incentive spirometer by itself,the benefit is limited. What truly matters is the deep breathing, earlymovement, and the fact that you learn these techniques before surgery—not afteryou’re already groggy or uncomfortable.
Preoperative education can reduce pulmonary complications,particularly in higher-risk patients. In some studies, a single focusedteaching session has significantly reduced serious breathing-relatedcomplications.
So think of the incentive spirometer as your coach and yourscoreboard.
It does not do the work for you. It gives you a target andshows you, in real time, whether your breaths are deep enough.
The real treatment is you taking those deep breathsregularly and getting up and moving as soon as it is safe.
The number your team sets on the spirometer is not the samefor everyone.
Your goal depends on factors such as your age, oxygen level,recent chest infections, and the type and length of your operation. Your teammay also use formal tools to estimate your individual risk.
The higher your risk, the more attention this part of yourrecovery deserves.
That is why we place the device in your hands today.
When you wake up, you will not be learning a new skill atthe most difficult moment. You will already know exactly what to do.
Segment 3 — Meet the Operating Room Team
Now the doors open, and you’re wheeled into the operatingroom.
Look around. There may be more people in the room than youexpected—sometimes six, eight, or even ten.
But no one is there by accident.
Every person has a specific role, and those rolesintentionally overlap. In the operating room, redundancy is not waste. It ishow potential mistakes are identified and prevented.
Let me introduce you to your team.
First is the person you already know: your surgeon.
But surgeons almost never operate alone. Across the table isthe first assistant—another surgeon, resident, fellow, or physicianassistant—working alongside your surgeon.
The assistant may retract tissue, help control bleeding,pass sutures, and support the technical work of the operation.
During robotic surgery, this role becomes especiallyhands-on.
The operating surgeon sits at a console a few feet away andcontrols the robotic instruments. At your bedside, the assistant changesinstruments, passes sutures, and remains ready to help at every moment.
It is a demanding role and a specialized skill.
At the head of the bed is the anesthesia team.
Their work has three important phases, and each involves acareful transition.
Induction is when they take you from being awake tofully asleep—often within seconds—and establish control of your airway andbreathing.
Maintenance is the longer phase of the operation.During this time, they keep you at the appropriate depth of anesthesia—not toolight and not too deep—while continuously monitoring your heart rhythm, bloodpressure, oxygen level, temperature, and fluid status.
They adjust your care constantly in response to how yourbody responds.
Then comes emergence, when they carefully reverse theanesthesia and wake you as the operation is completed.
Throughout the entire procedure, the anesthesia team’s focusis keeping your body safe and stable while the surgical team focuses on theoperation.
Next to the surgeon is the scrub technologist, or scrubtech—the person who passes instruments.
The scrub tech is a sterile member of the team, and theirwork begins long before you enter the room.
They organize the sterile field, prepare and test theinstruments, and arrange everything in a precise order.
During robotic and laparoscopic procedures, they also helpconnect the camera, light, and energy cables to the sterile field.
One of their most important responsibilities is the surgicalcount.
They count every sponge, needle, and instrument before theoperation begins, again when a cavity is closed, and once more before the skinis closed.
Why is that so thorough?
Because a retained surgical item—such as a sponge orinstrument accidentally left inside the body—is one of the most serious andpreventable errors in surgery.
The count is one of the safeguards designed to prevent it.
Moving around the room is the circulating nurse.
This is the non-sterile coordinator of the operatingroom—and, in many ways, its air-traffic controller.
Because the circulating nurse is not scrubbed into thesterile field, they can move freely throughout the room.
They help position your body safely, arrange equipment andmonitors, perform safety checks, obtain additional supplies, and communicatewith the rest of the hospital.
But one of their most important responsibilities issomething you may never see: situational awareness.
They maintain the larger view of the room, anticipate whatthe team may need, keep pathways clear in case of an emergency, and watch foranything that could affect your safety or the sterile field.
If something changes suddenly during the operation, theyhelp reorganize the room calmly and quickly.
And then there are the technology personnel—people manypatients have never heard about.
Modern minimally invasive surgery depends on complexequipment, including the laparoscopic tower and robotic system.
Dedicated team members help ensure that the camera is set upand properly calibrated, that the cables and energy devices are connected, thatthe insufflator and monitors are working, and that the robot is correctlypositioned and docked.
For some robotic procedures, a representative from thedevice company may also be present to provide technical support if needed.
These roles exist because advanced technology ispowerful—but it is also complex.
Having someone focused on the equipment allows the surgicalteam to keep its attention where it belongs: on you.
So take one more look around the room.
What may look like a crowd is actually a preciselycoordinated team: doctors, nurses, technologists, and other specialists, eachwith a defined responsibility.
Every person is watching a different part of your safety,and the team members are continuously checking one another.
At this moment, you are the most closely monitored person inthe hospital.
Segment 4 — Room Setup and the Surgical Count
While you were signing forms and drinking your carbohydratebeverage, something meticulous was already underway inside the operating room.
Long before you arrived, the scrub technologist andcirculating nurse were preparing the sterile environment where your operationwould take place.
Let me show you what they were doing, because most of it isinvisible once you’re asleep—and every step is designed to protect you.
It begins with sterility.
Your instruments arrive sealed in rigid containers orwrapped packs. Before anything touches the sterile field, the team performsseveral careful checks.
They inspect the container filters for holes, tears, orwatermarks—anything that could indicate the sterile barrier has beencompromised.
They also confirm the chemical indicators: color-changingmarkers that show the instruments went through a complete sterilization cycleat the correct temperature, pressure, and time.
And here is an important detail.
The scrub technologist does not place an instrument tray onthe sterile table until the circulating nurse has also checked the filters onthe bottom of the container.
If a bottom filter were damaged, placing that tray on thetable could contaminate the entire sterile field.
Nothing is assumed.
Everything is verified.
Now look at how the room is organized.
This is where surgery quietly borrows from fields such asaviation. The scrub technologist does not simply place instruments whereverthere is room.
There is a large back table and a smaller Mayo standpositioned close to you.
Frequently used items are placed on the Mayo stand, withinimmediate reach. Other instruments are arranged on the back table according totheir function and in a consistent layout.
Forceps are separated, with toothed instruments on one sideand smooth, atraumatic instruments on the other.
The camera cord, light cord, insufflation tubing, and energycables are also arranged in the order in which they will be needed.
This is not fussiness.
When every item has a known location, the team can work moreefficiently, make fewer errors, and reach for the correct tool quickly ifsomething changes.
Then comes one of the most important steps before theoperation begins: the initial count.
Together, the scrub technologist and circulating nurse counteverything that could potentially remain inside the patient.
Every sponge.
Every needle, blade, and suture.
Every instrument, including its smaller components.
They count aloud, one item at a time, while the circulatingnurse records each number.
This creates the baseline.
The count is then repeated when a body cavity is closed andagain before the skin is closed. The final count must match the initial count.
Why is this process so thorough?
Because leaving a surgical item behind—a sponge, needle, orinstrument—is considered a never event. It should never happen.
The Joint Commission classifies a retained surgical item asa reviewable sentinel event, and professional surgical organizations recommendconsistent, standardized counting as a primary safeguard.
Hospitals may also use additional systems, such as barcodedor radiofrequency-tagged sponges. If the count does not reconcile at the end ofthe procedure, imaging may be required.
But technology does not replace the human count.
It is used alongside it because two independent systems mayidentify what one system alone could miss.
That is the same philosophy of layered, redundant safety youwill see throughout your operation.
So the calm, quiet operating room you entered was only thevisible part of the process.
Behind it was a carefully rehearsed setup: sterilitychecked, equipment organized, instruments placed in assigned locations, andevery relevant item counted aloud and documented.
All of this is done so that when your surgery is complete,everything that came into the room is accounted for—and nothing is left behind.
Segment 5 — The WHO Timeout and the Aviation-Safety Story
Everything stops.
The instruments are ready. Your surgeon is gowned. The bladeis on the table.
Then, right before the first incision, the entire room comesto a deliberate halt.
Someone says aloud, “Let’s do our timeout.”
For the next sixty seconds, nobody touches anything.
This pause, at the edge of your operation, is one of themost important moments of your hospital stay. And I want to tell you where itcame from, because the story may change the way you see it.
During the timeout, the entire team—surgeon,anesthesiologist, nurses, scrub technologist, and everyone else in theroom—stops and confirms a short list of details that must be correct.
Your name and date of birth.
The exact procedure being performed.
The precise surgical site and side, matched against theconsent form and the mark on your skin.
Your allergies.
Whether the antibiotic was given at the appropriate time.
Whether any special equipment is available and working.
Nothing on that list is complicated.
That is the point.
These are simple, obvious details. But when they are missed,the consequences can be catastrophic.
They do not go wrong because the team is unintelligent. Theygo wrong because even highly trained, busy people can make simple mistakesunder pressure.
The timeout exists to catch that mistake before it reachesyou.
So where did this process come from?
The surgical timeout—and the checklist it belongs to—weredeliberately modeled on commercial aviation.
Think about what happens before every flight. Two highlytrained pilots, even those who have flown the same route hundreds of times,stop and read a checklist aloud to one another.
Not because they are forgetful.
Because aviation recognized something important: expertisedoes not eliminate human error. In fact, familiarity can make people morelikely to skip a step.
So aviation created a culture in which the checklist isnon-negotiable—for everyone, on every flight.
And it worked.
Flying went from being genuinely dangerous to becoming oneof the safest forms of transportation.
But the lesson was not only about checklists.
Aviation also became safer by investigating every crash—andeven near-misses in which no one was injured—not simply to find someone toblame, but to identify the weakness in the system and correct it.
Every accident became information.
Every investigation had the potential to make future flightssafer.
For much of its history, medicine approached errorsdifferently.
When something went wrong, the focus was often on theindividual: “Who made the mistake?”
That person might be blamed, and the system itself mightremain unchanged—allowing the same error to happen again.
Then, in 1999, the landmark report To Err Is Humanchallenged that mindset.
It showed that many medical errors are not the work of baddoctors or careless nurses. They often result from poorly designed systems thatallow good people to fail.
The report argued that medicine should adopt a lesson fromaviation: build systems that catch human error before it reaches the patient.
The timeout is one of the most visible parts of thatapproach.
But there is another principle that may be even moreimportant.
In aviation, it is called Crew Resource Management.
The central idea is simple, but powerful: flatten thehierarchy.
On a well-run flight deck, the newest co-pilot is not onlyallowed—but expected—to speak up if something appears wrong. And the captain istrained to listen.
The rank of the person who identifies the problem does notmatter.
Only the problem matters.
Now translate that principle to your operating room.
The reason the team introduces themselves by name and pausestogether is to give everyone explicit permission to speak up.
The newest nurse, the youngest trainee, or the scrubtechnologist—anyone in the room—can stop the operation if something does notlook right.
In the strongest surgical cultures, the scalpel is nothanded to the surgeon until the checklist is complete.
The most junior person in the room has the authority topause one of the most senior people in the hospital.
That is not accidental.
It is deliberately designed to protect you.
And this is not merely a feel-good idea.
When the World Health Organization’s surgical checklist wasintroduced and studied across eight hospitals on multiple continents, majorcomplications fell by more than one-third, and deaths fell by a similar amount.
A nineteen-item checklist, read aloud, was associated with ameaningful reduction in complications and deaths.
Separate studies of crisis checklists—used when somethingsuddenly goes wrong during an operation—found that having and using a checklistreduced the likelihood of teams missing a critical, lifesaving step by roughlyseventy-five percent.
That is not a minor improvement.
But I also want to be honest about the limits.
Medicine has adapted aviation’s ideas; it has not simplycopied them.
A cockpit is relatively controlled and predictable. Yourbody is not.
Every patient is different. Every operation can presentunexpected challenges. And no checklist can anticipate every possible change.
A checklist is not a magic formula. If a team reads itcarelessly or does not believe in it, it will accomplish very little.
What actually protects patients is the culture beneath thechecklist: a team that communicates, watches out for one another, and makes itsafe for anyone to speak up.
The checklist is the framework that supports that culture.
So when the room becomes silent before your surgery, andeveryone confirms who you are and what is about to happen, that pauserepresents decades of hard-won lessons from another industry that decidedpreventable deaths were unacceptable.
It is not bureaucracy.
It is one of the simplest and most powerful safety tools inthe hospital—and it is happening for you.
Segment 6 — Anesthesia Induction and the Airway
Now comes the moment you will actually remember—or, moreprecisely, the last moment you will remember before surgery.
The anesthesiologist leans toward you, explains that themedication is about to begin, and asks you to take several deep breaths ofoxygen through a soft mask.
That oxygen is not ceremonial.
It fills your lungs with a reserve of oxygen, giving yourbody a safety buffer during the brief period when you are not breathing on yourown.
This step is called preoxygenation, and it is one ofthe reasons anesthesia induction is safer than it once was.
Then the medication enters through your IV.
For most adults, the medication used to induce sleep ispropofol—the milky-white liquid you may have heard about.
It works quickly, usually within twenty to forty seconds.
One moment, you may be in the middle of a sentence. Thenext, you are asleep, with no awareness of time.
The anesthesiologist may also give an opioid painmedication, followed by a muscle relaxant.
The muscle relaxant temporarily prevents your muscles frommoving, allowing your body to remain still while your airway is secured.
Once you are fully asleep and relaxed, the anesthesiologistsecures your airway.
Most often, this involves placing a breathing tube throughyour mouth and into your windpipe. In some cases, a softer airway device may bepositioned in the back of your throat.
A breathing machine then supports your breathing throughoutthe operation.
There is also an important safety check.
The anesthesiologist confirms that the tube is in thecorrect location by detecting the carbon dioxide you exhale.
That provides objective evidence that the tube is in yourairway—and not in your esophagus.
From that point forward, you are continuously monitored.
Your heart rhythm is displayed on an ECG.
Your blood pressure is measured at least every five minutes.
Your oxygen level is tracked with a pulse oximeter.
The carbon dioxide in your exhaled breath is measured.
Your temperature is monitored.
And, in many cases, a sensor is placed on your forehead.This is called a bispectral index, or BIS, monitor. It analyzes brain activityto help assess the depth of anesthesia.
The goal is to keep you sufficiently anesthetized so thatyou feel and remember nothing, without giving you more anesthesia thannecessary.
These are not optional extras. They are part of themonitoring standards established by the American Society of Anesthesiologistsfor general anesthesia.
Patients often ask how they are kept asleep once anesthesiahas begun.
There are two primary approaches.
One uses an anesthetic gas delivered through the breathingtube.
The other is called total intravenous anesthesia, or TIVA,in which propofol is administered continuously through your IV.
Both approaches are established and considered safe. Largestudies have found similar overall safety between them.
They differ in certain ways.
The intravenous approach tends to be associated with lessnausea afterward, while the inhaled-gas approach may allow for a slightlyfaster wake-up.
Your anesthesiologist chooses the approach based on yourmedical history, your risk of nausea, and the operation itself.
It is a personalized decision made before you go to sleep.
So, although “going under” feels instantaneous, it isactually a carefully coordinated sequence:
Oxygen is loaded into your lungs in advance.
Medications are administered in a precise order.
Your airway is secured and verified with objective evidence.
And a continuous system of monitors watches every heartbeatand every breath for as long as you are asleep.
The evidence behind these practices is substantial.
FDA labeling for propofol describes weight-based inductionand maintenance dosing for adults, older adults, and children, and notes thatopioids and muscle relaxants may be administered alongside it. [1]
The combination of propofol for induction followed by amuscle relaxant to facilitate airway management has become standard practice,largely replacing older medications. [2]
The ECG, blood-pressure monitoring at least every fiveminutes, pulse oximetry, capnography, and temperature monitoring described hereare included in the American Society of Anesthesiologists’ standards for basicanesthetic monitoring. Exhaled carbon dioxide is used to confirm correctbreathing-tube placement. [3]
Regarding TIVA and inhaled anesthesia, a meta-analysis of385 trials found similar overall safety between the two approaches. TIVA wasassociated with less nausea, while inhaled anesthetic agents were associatedwith faster recovery. A large 2026 JAMA randomized trial in majornoncardiac surgery also directly compared the two techniques. [4–5]
Segment 7 — Invisible Safety Steps Once You’re Asleep
Here is something that surprises almost everyone:
The moment you fall asleep, you become completelydefenseless.
You cannot feel that your arm is positioned incorrectly. Youcannot shift your weight away from a heel under pressure. You cannot cough toclear your lungs or move your legs to keep your blood flowing.
Every protective reflex you rely on thousands of times aday—without thinking about it—temporarily switches off.
So the team takes over each of those responsibilities foryou.
This is the invisible half of surgery—the part no one eversees. Let me walk you through it.
First, your positioning.
Once you are asleep, the team carefully positions your bodyfor the operation and then pads it.
This is not about comfort. You will not be aware of it. Itis about protecting your nerves.
When you are awake and your elbow presses against a hardsurface, that “funny bone” sensation is your body warning you to move.
Under anesthesia, that warning does not occur. Hours ofconstant pressure on a nerve can cause a real—and sometimes lasting—injury: aweak wrist, a numb hand, or a foot that will not lift.
The American Society of Anesthesiologists provides guidancefor preventing these injuries. That includes padded armboards to protect thenerves in your arms, padding at the elbow to protect the ulnar nerve, andspecific padding at the outer knee to protect the peroneal nerve—the nervethat, if injured, can cause a drooping foot. [1]
There is also an important detail: padding must not beapplied too tightly. Improperly placed padding can cause the very injury it ismeant to prevent. [1]
Every pressure point—including your heels, hips, and theback of your head—is deliberately protected and offloaded. [2–3]
Next is your circulation.
When you lie completely still under anesthesia, blood flowin your legs slows down. That pooling blood can contribute to the formation ofa dangerous clot called a deep-vein thrombosis.
If that clot breaks loose and travels to your lungs, it canbecome life-threatening.
So, before you are even asleep, the team may placeinflatable sleeves around your calves. These sleeves gently squeeze andrelease, repeatedly helping move blood out of your legs and keep itcirculating. [4–5]
These intermittent compression devices meaningfully reduceclot risk. In higher-risk patients, when combined with a blood thinner, theycan reduce deep-vein thrombosis compared with a blood thinner alone. [6]
For many operations, you may also receive a carefully timeddose of a blood thinner, based on the balance between your risk of clotting andyour risk of bleeding. [4, 7]
Then there is your temperature—and this is more importantthan many patients realize.
Anesthesia can interfere with your body’s ability toregulate temperature. An open surgical field and a cool operating room cancause your core temperature to gradually fall.
Even mild hypothermia is not harmless. It can impair bloodclotting, increase the risk of wound infection, slow healing, and raise therisk of cardiac complications. [8]
That is why the team actively keeps you warm.
They may use a forced-air warming blanket over the areas notbeing operated on, warmed IV fluids, and even warmed irrigation fluid. [8]
Modern guidance recommends maintaining the operating-roomtemperature at or above 21 degrees Celsius, continuously monitoring your coretemperature, and aiming to keep it at or above 36 degrees Celsius. [8–9]
Your blood sugar is monitored as well.
The stress of surgery can raise glucose levels, even inpeople who do not have diabetes. Elevated glucose around the time of surgery isassociated with more infections and poorer healing. [10]
Your glucose may therefore be checked and maintained withina target range—often approximately 100 to 180 milligrams per deciliter—whilecarefully avoiding both high levels that can promote infection and low levelsthat are dangerous under anesthesia. [10–12]
And finally, your breathing.
While the ventilator breathes for you, it is not simplypushing in as much air as possible.
Decades ago, larger breaths were commonly used. Over time,evidence showed that this approach could injure the lungs.
Modern anesthesia uses what is called lung-protectiveventilation.
This means using deliberately smaller, gentler breaths basedon your predicted body weight, typically around 6 to 8 milliliters perkilogram, along with a small amount of continuous pressure to help keep the airsacs in your lungs open. [13–14]
This is not a minor adjustment.
Pooled clinical-trial data show that lung-protectiveventilation can reduce major pulmonary complications and atelectasis comparedwith older, higher-volume approaches. [14–15]
None of this is improvised.
The padding, the leg sleeves, the warming measures, theglucose checks, and the gentle ventilation are all part of a rehearsed,evidence-based defense that continues quietly throughout your operation.
You will never remember any of it.
That is the point.
While you are completely vulnerable, an entire team istemporarily standing in for every protective reflex you have placed in theirhands.
Segment 8 — Getting Into the Abdomen: Access andPneumoperitoneum
So how do we get inside you without opening your abdomen theold way—with one long incision?
This part can still feel a little like science fiction, andit is worth slowing down for, because everything is designed to accomplish asmuch as possible through the smallest openings.
It begins with a pen.
Before a single instrument enters, your surgeon marks yourskin and plans exactly where each small incision will go.
These marks are not random. They are positioned so that,once we are inside, the instruments can reach your anatomy from the bestpossible angles—with the most room to work and the least strain on yourtissues.
At each site, we then inject local anesthetic—numbingmedicine—into the skin and the layers beneath it.
You will be fully asleep and will not feel this during theoperation. But numbing these areas can help reduce your pain later, when youwake up.
It is one of those small, deliberate steps that benefits youhours later.
Now comes the first entry.
The first opening is the most carefully considered moment ofthis approach. It is the one time we pass through the abdominal wall before wecan see inside.
There are several well-established ways to do this.
With one approach, we first pass a very fine, spring-loadedneedle—called a Veress needle—through a small incision to begin gently fillingthe abdomen with gas.
With another, we place the first port—a small tube called atrocar—directly.
A third option is to make a slightly larger opening andenter under direct vision.
Each method has been extensively studied, includingcomparisons involving thousands of patients. Your surgeon chooses the approachthat is safest for your anatomy and medical history.
For example, previous surgery may have caused scar tissueinside the abdomen, which can affect the safest method of entry.
The purpose of this carefully planned first entry is toprotect the structures just beneath the abdominal wall—including the bowel andblood vessels—during the one moment when we cannot yet see inside.
Once we are safely in, we do something that sounds unusualbut is essential:
We inflate the abdomen.
Carbon dioxide gas flows into the abdominal cavity, creatinga dome of space—a working chamber—that lifts the abdominal wall away from theorgans.
Without this space, everything inside is closely packedtogether, leaving very little room to see or maneuver.
With it, we create a clear, illuminated space in which towork.
This is called pneumoperitoneum, and it is what makesminimally invasive, or keyhole, surgery possible.
We use carbon dioxide because the body can absorb it safely,and the lungs can breathe it out.
There is another important detail—one that reflects howsurgery continues to become gentler.
For many years, the abdomen was inflated to a relativelyfirm pressure. More pressure creates more space, and more space can make theoperation easier for the surgeon.
But we have learned that using more pressure than necessarycomes with a cost.
It can compress the small blood vessels supplying yourorgans, place additional strain on the heart and lungs during anesthesia, andcontribute to more shoulder and abdominal pain afterward.
That shoulder pain occurs because the gas pressure canirritate the nerve connected to the diaphragm, which the brain may interpret aspain in the shoulder.
So the modern, evidence-based approach is to use the lowestpressure that still provides a safe and clear view—often in the range of 8 to10, rather than the higher pressures that were previously accepted.
To make this possible without limiting the surgeon’sworkspace, the anesthesia team may deepen your muscle relaxation. This allowsthe abdominal wall to remain soft, giving us the room we need at a gentlerpressure.
Lower pressure has been associated with faster recovery,less pain, and less need for pain medication.
It is a perfect example of the theme of this entire video:
A small, invisible decision, made for your benefit—one youwould never know had taken place.
Once the space has been created, the instruments enterthrough the small ports.
This is where the precision of the technology becomes clear.
The instruments are long, narrow, and designed to passthrough tubes about the width of a pencil.
We use dissectors—fine-tipped instruments that gentlyseparate tissues and open the natural planes between structures.
We also use graspers, and there is an important distinctionbetween them.
Some graspers are atraumatic, with soft, finely texturedjaws designed to hold delicate tissue, such as the bowel, without bruising it.
Others are designed to grip firmly and provide retraction.
Choosing the right instrument for the right tissue is agenuine surgical skill.
Many of these instruments also contain electrocautery—acontrolled electrical current that allows us to divide tissue and seal smallblood vessels at the same time.
That means less bleeding and a clearer surgical field.
Before any instrument is used, the scrub team tests it tomake sure it opens, closes, locks, and delivers energy correctly.
Nothing is used near you without being tested first.
So put it all together:
A few marks made with a pen.
A few numbing injections.
One carefully protected entry.
A dome of carbon dioxide maintained at the lowest pressurethat provides a safe working space.
And a set of precise, purpose-built instruments passingthrough openings small enough to close with only a stitch or two.
That is how we perform major surgery inside you whileminimizing the disruption to the outside of your body.
And every one of those steps is designed to help you recoverfaster and hurt less.
Segment 9 — The Operation Itself: The Minimally InvasiveApproach
Now we are at the heart of the process—the operation itself.
And there is one idea I want you to understand:
The greatest surgical revolution of the past several decadeswas not necessarily the creation of entirely new operations.
It was finding a better way to perform many of the sameoperations—through small openings instead of one large incision.
That may sound like a small change.
For patients, it has been one of the most important.
Let me explain the philosophy behind it, because it guidesevery decision your surgical team makes.
Traditional open surgery requires a large incision throughthe skin, fat, muscle, and the strong layer beneath them.
That incision is a real injury to the body.
Your body does not distinguish between the trauma requiredto reach the surgical site and the work being performed inside. It registers alarge wound and responds with a significant stress reaction—more inflammation,more pain, greater strain on the lungs, and a temporary slowdown of theintestines.
Much of what once made surgery difficult to recover from wasnot only the operation itself.
It was the large incision required to reach the operation.
Minimally invasive surgery changes that.
Through a few small, keyhole openings, we use a camera andlong, slender instruments to perform the necessary work inside while creatingfar less trauma on the way in.
And the benefit is not simply cosmetic.
Across a broad body of evidence and many types ofoperations, minimally invasive surgery is associated with less pain, less bloodloss, a lower risk of wound infection, shorter hospital stays, and a fasterreturn to normal activities.
For many procedures, it has also been associated with loweroverall complication rates.
That is why operations such as gallbladder removal, colonsurgery, and hysterectomy are often performed through a minimally invasiveapproach whenever it is appropriate and feasible.
There is also an important nuance.
The short-term benefits—during the first days and weeks—arereal and measurable.
Over time, however, patients who undergo open surgery maycatch up. By approximately six months, the differences between the two groupsmay become much smaller.
So the greatest benefit of minimally invasive surgery isoften a smoother, faster, and less painful early recovery.
It can help you return home and resume your life sooner.
That benefit is very real.
The second principle guiding the operation is precision:doing exactly what needs to be done, and no more.
The camera magnifies your anatomy on a high-definitionscreen, providing a view that is often much larger and clearer than what thenaked eye can see during open surgery.
This magnification allows the surgeon to work along thenatural planes between tissues, identify important structures—including bloodvessels, nerves, and ureters—and deliberately protect what needs to beprotected.
Only the tissue that needs to be divided is divided.
The goal is controlled, deliberate dissection.
Every important structure is identified before it isdivided.
Nothing is cut in haste.
Alongside all of this, another important decision is beingmade—one most patients never hear about:
How much intravenous fluid should you receive?
It may sound routine, but it matters.
For many years, patients were routinely given large volumesof fluid during surgery, based on the idea that more was safer.
We now understand that there is a balance.
Too little fluid may reduce blood flow to your organs.
Too much fluid can cause the tissues to become swollen, makethe bowel slower to recover, make breathing more difficult, and delay recovery.
The relationship is sometimes described as a U-shaped curve:too little can be harmful, too much can also be harmful, and the goal is toremain in the middle.
That is why modern anesthesia treats fluid like amedication.
It is given carefully, according to what your body needs,rather than simply being poured in.
This approach is often called goal-directed fluid therapy.
The aim is to provide enough fluid to support yourcirculation and organs—without giving more than necessary.
During higher-risk procedures or in patients with greatermedical complexity, the anesthesiologist may use monitors that measure how yourheart and circulation are responding from beat to beat.
Fluids can then be adjusted according to those real-timesignals.
It is the same principle we have discussed throughout thisvideo:
A careful, invisible, evidence-based decision made on yourbehalf while you sleep—designed to help you recover faster and feel bettersooner.
So when you picture the operation itself, do not picturesomething chaotic or dramatic.
Picture calm, magnified, deliberate work through a few smallopenings.
Picture a team providing exactly the fluid you need—and nomore.
Picture an entire philosophy built around one central idea:
Perform the necessary work inside while disturbing the restof your body as little as possible.
Segment 10 — Closure: Fascia and Skin Only
We are almost done.
The operation is finished, the instruments are coming out,and now we close.
This is where the philosophy of keyhole surgery pays off onelast time.
Because we did not make a large incision, there is verylittle to close. There is no long wound to repair in multiple layers—just a fewsmall openings.
Closing them is quick, deliberate, and quietly important.
Let me explain what happens at each of those sites, becausethere is more thought behind it than you might expect.
The abdominal wall has a strong inner layer called the fascia—atough, fibrous sheet that provides much of the wall’s structural support.
The skin on the outside is simply the covering.
So closing these incisions involves two separate layers, andeach one is treated differently.
The smallest openings—such as the five-millimeter portsites—usually do not require closure of the fascia.
The opening is very small, and the surrounding tissue isgenerally strong enough that the risk of anything pushing through later is low.
The larger openings are different.
When an opening in the fascial layer is approximately tenmillimeters or larger, it can leave behind a weak spot.
Over the following weeks or months, a small portion ofintestine or fat can push through that area and create a bulge.
This is called a port-site hernia.
It is uncommon, but it is the kind of avoidable problem weplan for during the operation.
That is why we deliberately close the fascia at the largerport sites.
We bring the edges of that inner layer back together so itcan heal as a solid barrier.
Because these openings are small, deep, and difficult toreach with a standard needle, surgeons may use a specialized closure device.
This instrument is designed to reach down, capture bothedges of the fascial layer, and bring them together precisely.
The evidence is consistent: closing the fascia at largerport sites substantially reduces the risk of a hernia.
It is a small additional step at the end of the operationthat may help some patients avoid another procedure later.
Only after the deeper layer has been addressed do we closethe skin.
This part is almost cosmetic by comparison.
We may use a small stitch beneath the surface, surgicalglue, or a thin adhesive strip.
Different surgeons prefer different methods. Research showsthat all of these approaches can heal well, and none is dramatically betterthan the others.
The choice often comes down to which method provides a neatscar with the least inconvenience.
Whatever method we use, the goal is the same:
A clean, well-aligned incision that gradually fades over thecoming months.
Segment 11 — Waking Up and Recovery: The Last Stretch ofthe Plan
You’ve made it through the operation.
Now comes the part you’ll actually remember: waking up.
But waking from anesthesia is not like flipping a lightswitch, and it is not accidental. It is a controlled, deliberatelanding—planned just as carefully as the start of anesthesia.
The anesthesia team has been thinking about this momentsince before you fell asleep.
As the operation ends, the anesthesiologist begins reducingand stopping the medications that have kept you asleep. These medications areselected because they clear from your body relatively quickly, allowing you tobegin waking within minutes rather than hours.
If you received medication to relax and temporarily paralyzeyour muscles during surgery—which is standard because it keeps your abdomenstill while we work—that effect is now deliberately reversed.
This step is extremely important. We do not want you wakingwith weakness in the muscles you use to breathe.
Using monitors and your own breathing effort, the teamconfirms that your muscle strength has returned before removing the breathingtube.
This is called extubation.
The tube is removed only when you are breathing well on yourown, your oxygen levels are stable, and you are beginning to respond. In manycases, you may be awake enough to follow a simple instruction, such as, “Openyour eyes,” or, “Take a deep breath.”
You may not remember this moment, and that is completelynormal.
Once the tube is removed and your breathing is steady, youare taken to the recovery room—the PACU, or post-anesthesia care unit.
The handoff to the recovery room is also an important safetystep.
The anesthesia team does not simply wheel you in and walkaway. They give your recovery nurse a structured report: who you are, whatoperation you had, which medications you received, and what to watch for.
It is the same checklist-based approach we discussedearlier—critical information is communicated clearly and out loud so thatnothing is lost during the transition from one team to another.
In the recovery room, a nurse closely monitors yourbreathing, heart rate, blood pressure, oxygen levels, and pain.
Some grogginess, a dry throat, mild shivering, or nausea canoccur. These are common after anesthesia, and the team treats them proactively.
This is also when several earlier parts of the plan cometogether.
Remember the incentive spirometer—the breathing device youwere taught to use before surgery?
Once you are awake, you will begin taking slow, deep breathsand aiming for the goal you practiced earlier.
Because you learned the technique before surgery, when youwere calm and alert, you already know what to do. Patients who receive thatinstruction beforehand are more likely to use the device correctly.
Those deep breaths help reopen the small air sacs in yourlungs that can partially collapse after anesthesia, helping reduce the risk ofcomplications such as pneumonia.
The device itself is a coach and a way to measure youreffort. The real treatment is the deep breathing—and one of the most importantsteps is getting up and moving.
That is why early mobilization begins sooner than manypatients expect.
Often, it starts that same day or the following morning:sitting at the edge of the bed, standing, and taking a short assisted walk.
It may seem simple, but getting upright and walking is oneof the most effective tools we have for recovery.
Movement helps re-expand the lungs, keeps blood circulating,reduces the risk of blood clots, and helps wake the intestines so you can eatand go home sooner.
Early movement is one of the cornerstones of a faster, saferrecovery.
Then there is pain control.
Remember the combination of medications you received beforesurgery—the non-opioid approach designed to get ahead of pain?
That strategy continues after surgery. It is called multimodalanalgesia.
The goal is to combine medications that work in differentways, such as scheduled acetaminophen, an anti-inflammatory medication, and,when appropriate, a local anesthetic block near the incisions.
This helps keep you comfortable while using as little opioidmedication as possible.
Opioids still have a role in treating breakthrough pain, butthey are the backup—not the foundation.
This is not only about avoiding grogginess. Good paincontrol with minimal opioid use makes it easier for you to breathe deeply,stand, and walk.
Each part of the plan supports the next.
So when you picture waking up, do not picture a sudden jolt.
Picture a planned, gentle landing:
A team confirming that your strength and breathing havereturned before removing the tube.
A careful, spoken handoff to a nurse who is watching overyou.
And then you—awake and beginning to use the tools you weretaught earlier: deep breathing, early movement, and a steady,non-opioid-focused pain plan.
Everything that happened before surgery was preparing youfor this moment.
The plan did not end when you fell asleep.
It was designed to hand the work back to you as soon as youwoke up.
Segment 12 — Closing: How the Small Steps Add Up
Let’s step back, because I want to leave you with the ideathat ties this entire video together.
When you pictured surgery at the beginning, you probablyimagined one dramatic moment: the incision, the operation, the scalpel.
But by now, you know the truth.
There was no single moment that made your surgery safe.There was no single hero.
What made it safe was something quieter—and, in many ways,more remarkable: hundreds of small, deliberate steps, each supported byevidence and carefully built into the process.
There is a phrase for this idea, borrowed from elite sports:the aggregation of marginal gains.
The concept is simple. You rarely succeed because of onemajor breakthrough. You succeed by improving many small things and doing eachof them consistently well.
That is exactly what modern surgery has become.
The carbohydrate drink instead of prolonged fasting.
The breathing device you were taught to use beforesurgery—not afterward.
The oral pain medications that helped get ahead ofdiscomfort.
The precise timing of the antibiotic.
The lower pressure inside your abdomen.
The careful dosing of fluids.
The closure of the fascia at the appropriate port sites.
The surgical count performed out loud—and repeated.
Individually, these steps may seem small. Together, theyrepresent the difference between the surgery of a generation ago and thesurgery you just experienced: less pain, fewer complications, and a fasterreturn home.
And none of this happens because of one person.
It happens because of a team—many of whose members you maynever fully see.
The surgeon and first assistant.
The anesthesia team guiding you to sleep and safely back towakefulness.
The scrub technician protecting the sterile field.
The circulating nurse coordinating the room.
The technology specialists keeping the equipment and systemsfunctioning.
Each person has a defined role. And every member of the teamis empowered to pause or stop the operation if something does not look right.
That leads to the final piece: the culture of safety.
Much of the protection you experienced was deliberatelyadapted from aviation: the checklist, the timeout before the operation begins,and the expectation that even the most junior person in the room can—andmust—speak up if something seems wrong.
Surgery became safer in the same way flying did—not byrelying on perfect people, but by building systems that protect patients eventhough people are human.
So here is what I want you to take away.
If you are facing an operation, fear is normal. Butunderstand what is surrounding you.
It is not luck.
It is a system—a quiet, disciplined, evidence-based systembuilt over decades.
It is made up of hundreds of small steps and a team ofpeople working together, often behind the scenes.
And every part of that system exists for one reason:
To get you safely through your surgery—and safely home.
That is what really happens in the operating room.
Thank you for allowing me to walk you through it.