Paraesophageal Hernia
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Overview
A paraesophageal hernia is a type of hiatal hernia in which part or all of the stomach pushes up through the diaphragm into the chest beside the esophagus. In the more common sliding hiatal hernia, the junction between the esophagus and stomach simply slides upward. In a paraesophageal hernia, the top of the stomach (the fundus) rolls up next to the esophagus, and over time more of the stomach — and sometimes the colon, spleen or small bowel — can follow. When most of the stomach is in the chest, it is often called a giant hiatal hernia or an "upside-down stomach."
Hiatal hernias are classified into four types:
- Type I (sliding): the gastroesophageal junction moves up into the chest. This accounts for the large majority of hiatal hernias and mainly causes reflux.
- Type II (true paraesophageal): the junction stays in place, but the fundus rolls up beside the esophagus.
- Type III (mixed): both the junction and the fundus are in the chest. This is the most common form of paraesophageal hernia.
- Type IV: another organ, such as the colon, spleen or small intestine, has also entered the chest.
Types II through IV are grouped as paraesophageal hernias. They are less common than sliding hernias but more important mechanically, because the stomach can twist (volvulus), become obstructed, bleed, or in rare cases lose its blood supply. Paraesophageal hernias tend to enlarge over time and do not go away on their own, so symptomatic hernias are repaired surgically (Kohn et al., Surgical Endoscopy, SAGES Guideline, 2013). Today, almost all repairs are done laparoscopically or robotically, with short hospital stays and excellent results in experienced hands.
Causes
- Widening of the diaphragmatic hiatus: the opening where the esophagus passes through the diaphragm stretches with age, allowing the stomach to move up.
- Increased abdominal pressure: obesity, chronic coughing, heavy lifting, straining and pregnancy all push the stomach upward.
- Weakening of the ligaments that normally anchor the esophagus and stomach in the abdomen.
- Progression of a sliding hiatal hernia over years into a larger mixed hernia.
- Prior surgery at the hiatus, such as fundoplication, sleeve gastrectomy, or esophageal surgery.
- Trauma to the abdomen or chest, rarely.
Risk Factors
- Age over 60: paraesophageal hernias are most common in older adults.
- Female sex
- Obesity
- Kyphosis or spinal curvature, which shortens the space in the chest and abdomen
- Chronic cough or lung disease
- Prior foregut or bariatric surgery
- Connective tissue weakness
Who It Affects
Paraesophageal hernias are most often diagnosed in people in their 60s, 70s and 80s, and they are more common in women. Many are discovered incidentally on a chest X-ray or CT scan done for another reason. Others are found during evaluation for anemia, shortness of breath, chest pain, or trouble eating. Older age is not a barrier to repair: elective laparoscopic repair is performed safely in patients in their 80s and 90s when their overall health allows.
Complications
- Gastric volvulus: the stomach twists on itself, causing sudden severe chest or upper abdominal pain, retching without being able to vomit, and inability to pass a tube into the stomach. This is a surgical emergency.
- Obstruction and strangulation: the stomach becomes trapped and its blood supply is compromised.
- Bleeding: chronic iron-deficiency anemia or, less often, sudden bleeding.
- Aspiration pneumonia from regurgitation.
- Respiratory compromise from a large hernia occupying chest space.
The yearly risk of developing emergency symptoms in a patient with few or no symptoms is low, about 1% per year (Stylopoulos et al., Annals of Surgery, 2002), but emergency repair carries considerably higher risk than a planned operation.
Symptoms
Some paraesophageal hernias cause few symptoms. Others cause a wide range of problems that patients often do not connect to the stomach:
- Chest pain or pressure after eating
- Early fullness and inability to finish a normal meal
- Difficulty swallowing or food sticking
- Regurgitation and heartburn
- Shortness of breath, especially after meals, because the stomach takes up space in the chest
- Nausea, vomiting or retching
- Anemia and fatigue from slow bleeding of ulcers (Cameron lesions) where the stomach is pinched by the diaphragm
- Palpitations or rapid heartbeat after eating
- Weight loss or eating smaller meals to avoid discomfort
- Chronic cough, hoarseness or aspiration
Diagnosis
- CT scan of the chest and abdomen: shows the size of the hernia, which organs are involved, and whether the stomach is twisted.
- Upper GI series (barium swallow): maps the anatomy and the position of the gastroesophageal junction.
- Upper endoscopy: evaluates the lining for Cameron ulcers, esophagitis and Barrett's esophagus; see diagnostic upper endoscopy.
- Esophageal manometry: assesses swallowing function and helps tailor the fundoplication.
- Blood tests: check for iron-deficiency anemia.
- Pulmonary and cardiac evaluation in older patients before surgery.
Questionnaires and imaging alone can underestimate the size of a hiatal hernia; Dr. de la Cruz-Muñoz's group showed that intraoperative findings frequently differ from what upper GI series and symptom questionnaires predict (Ribieras, …, de la Cruz-Muñoz, Surgery for Obesity and Related Diseases, 2023).
Differential Diagnosis
- Sliding hiatal hernia
- Coronary artery disease and other cardiac chest pain
- Achalasia and other motility disorders
- Gastric outlet obstruction
- Peptic ulcer disease
- Lung disease causing shortness of breath
Lifestyle Modifications
Lifestyle changes can ease symptoms but do not shrink a paraesophageal hernia:
- Eat small, frequent meals rather than large ones.
- Stay upright for two to three hours after eating.
- Elevate the head of the bed.
- Avoid heavy lifting and straining.
- Lose excess weight before surgery when possible.
- Take iron supplements if anemia is present.
Treatment Options
Watchful waiting may be reasonable for older patients with truly no symptoms or significant medical risks, with clear instructions about warning signs (Stylopoulos et al., Annals of Surgery, 2002). For everyone with symptoms, surgery is recommended (Kohn et al., Surgical Endoscopy, 2013).
Laparoscopic or robotic paraesophageal hernia repair (see hiatal and paraesophageal hernia repair) includes these key steps:
- Reducing the stomach and other organs back into the abdomen.
- Complete excision of the hernia sac from the chest.
- Extensive mobilization of the esophagus so that at least 2–3 cm lies in the abdomen without tension. When the esophagus is truly short, a Collis gastroplasty can lengthen it.
- Closure of the hiatus with permanent sutures, sometimes reinforced with mesh. Biologic mesh reduced early recurrence in a randomized trial, although long-term differences narrowed (Oelschlager et al., Annals of Surgery, 2006; Oelschlager et al., Journal of the American College of Surgeons, 2011).
- Fundoplication — usually a Nissen or Toupet — to prevent reflux and anchor the stomach.
- Gastropexy in selected patients to fix the stomach in place.
For patients with obesity, gastric bypass with hiatal hernia repair can provide durable reflux control and weight loss in one operation. For hernias that return after surgery, see recurrent hiatal hernia.
Sliding Hiatal Hernia vs. Paraesophageal Hernia: Why the Distinction Matters
A small sliding hernia is mainly a reflux problem and is often managed with medication, with surgery reserved for reflux that medication does not control. A paraesophageal hernia is a mechanical problem: the stomach is in the wrong place and can twist, obstruct or bleed, and medication cannot fix it. That is why the treatment threshold for paraesophageal hernias is lower, and why a CT scan or upper GI series that shows the full anatomy is so important before deciding on treatment.
When to See a Doctor
See a doctor if you have chest pressure or fullness after meals, trouble swallowing, unexplained anemia, or shortness of breath after eating. Go to the emergency room immediately for sudden severe chest or abdominal pain with retching or inability to vomit, inability to swallow, or vomiting blood — these can signal a twisted or strangulated stomach.
When to Seek Treatment
Seek a surgical consultation once a paraesophageal hernia causes any symptoms, including anemia. Planned repair is far safer than emergency surgery, and outcomes are best when the operation is done by a surgeon who performs complex hiatal surgery regularly.
Long-Term Outlook
After repair, most patients return to normal eating within several weeks, starting with liquids and soft foods. Long-term success depends on a tension-free repair, adequate esophageal length, and maintaining a healthy weight. Anemia from Cameron lesions typically resolves. Patients should report recurring symptoms promptly so that any recurrence can be evaluated early.
What Recovery Looks Like
- Hospital stay: usually one to two nights.
- Diet: clear liquids at first, then full liquids and soft foods over two to four weeks while swelling at the repair settles. Temporary tightness when swallowing is common and usually resolves.
- Activity: walking right away; most people return to desk work within one to two weeks and avoid heavy lifting for about six weeks to protect the repair.
- Follow-up: a postoperative visit and, when needed, an upper GI study to confirm the anatomy.
- Reflux medication: many patients are able to stop acid medication after surgery.
Related Reading and Videos
Watch Laparoscopic Paraesophageal Hernia Repair with Toupet Fundoplication | Full OR Footage and Laparoscopic Type IV Paraesophageal Hernia Repair | Real Surgery Video on our video library. Related conditions include Failed Fundoplication.
More Foregut and Reflux Conditions
Explore related topics in our foregut patient library: Recurrent Hiatal Hernia, Failed Fundoplication, Hiatal Hernia & Paraesophageal Hernia, Functional Heartburn, Achalasia and Gastroparesis. For an overview of surgical options, see anti-reflux surgery and hiatal and paraesophageal hernia repair.
Prognosis
Elective laparoscopic repair relieves symptoms and improves quality of life in the large majority of patients, and most go home within one to two days. Small anatomic recurrences seen on X-ray are relatively common over time, but most are small and cause no symptoms; only a minority need further surgery.
Why Choose Dr. de la Cruz‑Muñoz
Large paraesophageal and giant hiatal hernias are among the most technically demanding operations in foregut surgery. Dr. Nestor de la Cruz-Muñoz, MD, FACS, DABOM, is a board-certified surgeon specializing in minimally invasive foregut and bariatric surgery in Miami who directed a bariatric surgery fellowship for 10 years, training 13–14 fellows who also gained experience in foregut surgery. He repairs type III and type IV hernias laparoscopically and has presented his technique for type IV hiatal hernia repair nationally (Society of Laparoendoscopic Surgeons, 2012). He also performs redo hiatal surgery and combined hernia repair with bariatric surgery for patients with obesity. Patients traveling from outside South Florida are welcome; much of the preoperative testing can be arranged close to home.
Paraesophageal hernia repair sits where foregut and hernia surgery meet, two areas at the core of Dr. de la Cruz-Muñoz's practice. In over 25 years he has completed over 15,000 minimally invasive procedures, including complex foregut, hernia, gallbladder, abdominal and bariatric operations.
For South Florida readers, our hiatal hernia and reflux surgery in Miami page explains how to arrange an evaluation for a large hiatal hernia at our practice.
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FAQ
In a common sliding hiatal hernia, the junction between the esophagus and stomach slides up into the chest, mainly causing reflux. In a paraesophageal hernia, the top of the stomach rolls up beside the esophagus, and over time much of the stomach — and sometimes other organs — can move into the chest. Paraesophageal hernias are less common but more likely to cause chest pressure, early fullness, anemia and, rarely, a twisted stomach, so they are treated as a mechanical problem rather than a reflux problem.
Symptomatic paraesophageal hernias — including those causing anemia — are generally repaired, because they tend to grow and do not resolve on their own (Kohn et al., Surgical Endoscopy, 2013). For older patients with truly no symptoms, careful watchful waiting can be reasonable, since the risk of developing emergency symptoms is about 1% per year (Stylopoulos et al., Annals of Surgery, 2002). Planned surgery is much safer than emergency surgery, so the decision should be made with a surgeon experienced in hiatal repairs.
Age alone is rarely a reason to avoid repair. Paraesophageal hernias are most common in people in their 70s and 80s, and elective laparoscopic repair is performed safely in patients in their 80s and 90s when their heart and lung health allow. Because emergency surgery for a twisted or obstructed stomach carries much higher risk in older patients, a planned repair is often the safer choice for those with symptoms. Preoperative testing helps decide whether surgery is right for you.
Yes. Where the stomach is pinched by the diaphragm, it can develop small ulcers called Cameron lesions that bleed slowly. The blood loss is often invisible but leads to iron-deficiency anemia, fatigue and shortness of breath. Many patients are first diagnosed with a hernia during an evaluation for unexplained anemia. Iron replacement helps in the short term, but repairing the hernia usually resolves the bleeding.
Most patients stay in the hospital one to two nights after laparoscopic repair. You will start with liquids and progress to soft foods over two to four weeks, since mild swallowing tightness while the repair heals is common. Walking starts right away, most people return to desk work within one to two weeks, and heavy lifting is avoided for about six weeks to protect the repair. Many patients are able to stop acid medication after surgery.
Yes. Because the esophagus and stomach sit directly behind the heart and lungs, a hiatal hernia can produce chest pain that closely mimics a heart attack, and gastrointestinal causes account for roughly 10–20% of chest pain in outpatients (Anderson et al., Journal of the American College of Cardiology, 2022; Sanderson & Escudier, Burket's Oral Medicine, 2021). Large hernias in particular can cause shortness of breath through several mechanisms — compression of the lungs, reduced lung volumes, obstruction of blood flow into the heart, and microaspiration — and this cardiorespiratory connection has historically been underappreciated (Mahendravarman et al., ANZ Journal of Surgery, 2026). Heart racing and palpitations can also occur, and when they appear suddenly alongside severe chest/abdominal pain, severe vomiting, or inability to pass anything, they may signal that the stomach has twisted or lost its blood supply (volvulus/strangulation) — a medical emergency requiring immediate care (Baiu & Lau, JAMA, 2019). Any new chest pain should be evaluated to rule out a cardiac cause first, but a known large hernia is a recognized and often reversible contributor to these symptoms (Mahendravarman et al., ANZ Journal of Surgery, 2026).
Hiatal hernia repair is usually done laparoscopically or robotically. The surgeon returns the stomach to the abdomen, removes the hernia sac, frees the esophagus so enough of it sits below the diaphragm without tension, and closes the enlarged opening in the diaphragm with sutures, sometimes reinforced with mesh. A fundoplication (Nissen or Toupet) is usually added to prevent reflux, or a gastric bypass in patients with obesity. Most patients go home within one to two days.
No. Mesh is used selectively based on the size of the hernia and the quality of the tissue. The foundation of hiatal hernia repair is closing the diaphragm opening with sutures and getting enough esophagus into the abdomen without tension. Mesh reinforcement may reduce early recurrence in large hernias, but long-term benefits are less clear (Oelschlager et al., Journal of the American College of Surgeons, 2011), so the decision is individualized.
