Hiatus Hernia vs GORD: What Is the Difference and Do You Need Surgery?
General information only: This article provides general educational information about hiatus hernia and gastro-oesophageal reflux disease. It does not replace assessment or personalised advice from your GP or specialist. If you have persistent reflux, difficulty swallowing, unexplained weight loss or chest pain, see your GP. Seek urgent care for chest pain that may indicate a cardiac cause, severe vomiting or inability to swallow.
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Two Conditions That Are Often Confused — But Are Not the Same
Hiatus hernia and gastro-oesophageal reflux disease — commonly called GORD or acid reflux — are two of the most frequently encountered upper gastrointestinal conditions in Australia. They often occur together, which is why many patients and even some healthcare providers use the terms interchangeably. They are, however, distinct conditions with different definitions, different mechanisms, and importantly, different implications for treatment.
Understanding the difference between hiatus hernia and GORD — and knowing when either condition warrants surgical assessment — can help patients across Campbelltown and the Macarthur region make more informed decisions about their care.
Dr Devesh Kaushal is a specialist general surgeon and upper GI surgeon at 4 Hyde Parade, Campbelltown. He performs gastroscopy and anti-reflux and hiatus hernia surgery for patients across South Western Sydney.
Upper GI Surgical Assessment — Campbelltown Contact the rooms to discuss current availability | (02) 7906 8312 | drdeveshkaushal.com.au |
What Is GORD (Gastro-Oesophageal Reflux Disease)?
GORD is a condition in which stomach contents — including acid and, in some patients, bile — reflux back up into the oesophagus (food pipe). The oesophagus is not designed to tolerate acid. Repeated acid exposure causes inflammation, symptoms and, over time, can lead to structural changes in the oesophageal lining.
GORD is extremely common — estimated to affect approximately 10 to 20% of Western adults. In Australia, it is one of the most frequently presenting upper gastrointestinal complaints in general practice.
What causes GORD?
The primary protective mechanism against reflux is the lower oesophageal sphincter (LOS) — a muscular valve at the junction of the oesophagus and stomach. When this valve does not close properly, or relaxes at inappropriate times, acid escapes upward into the oesophagus. Contributing factors include:
- Obesity — increased intra-abdominal pressure pushes stomach contents upward
- Hiatus hernia — see below
- Pregnancy
- Certain foods and drinks — fatty foods, chocolate, caffeine, alcohol, carbonated drinks
- Medications — calcium channel blockers, nitrates, some antidepressants
- Smoking — relaxes the lower oesophageal sphincter
- Delayed gastric emptying
Symptoms of GORD:
- Heartburn — a burning sensation rising from the upper abdomen into the chest and throat
- Regurgitation — acid or food coming back into the mouth
- Belching or bloating after meals
- Sore throat, hoarseness or chronic cough — caused by acid reaching the larynx
- Worsening of symptoms on lying down, bending forward, or after eating
- Chest discomfort — which must be distinguished from cardiac causes
- Difficulty swallowing in more advanced cases
What Is a Hiatus Hernia?
A hiatus hernia is a structural condition in which part of the stomach pushes through the hiatus — the opening in the diaphragm through which the oesophagus passes — into the chest cavity. The diaphragm is the large muscular sheet separating the chest from the abdomen.
Hiatus hernias are common, particularly in adults over 50, and become more frequent with increasing age and body weight. Many people have a hiatus hernia without knowing it — small hiatus hernias are often found incidentally during gastroscopy or imaging performed for another reason.
Types of hiatus hernia:
Type | What Happens | Notes |
Type I — Sliding (most common, ~95%) | The gastro-oesophageal junction slides up into the chest through the hiatus. The stomach remains below. | Most common type. Strongly associated with GORD. Most small sliding hernias cause no symptoms. |
Type II — Para-oesophageal (rolling) | The gastro-oesophageal junction stays in place but a portion of the fundus (upper stomach) rolls up alongside the oesophagus into the chest. | Less common. May cause different symptoms — fullness, difficulty swallowing, chest discomfort. Risk of complications. |
Type III — Mixed | Combination of Types I and II — both the junction and part of the fundus are displaced into the chest. | Less common. May be associated with more significant symptoms. |
Type IV — Large / Complex | A large portion of the stomach — and sometimes other abdominal organs — have herniated into the chest. | Uncommon but significant. Often requires surgical assessment. Risk of obstruction, volvulus and strangulation. |
The Key Difference: Structure vs Symptom
| Hiatus Hernia | GORD |
What it is | A structural anatomical finding — part of the stomach displaced through the diaphragm | A functional/clinical condition — acid reflux causing symptoms and/or oesophageal damage |
How it is found | On gastroscopy or imaging — can be seen | Diagnosed by symptoms, pH monitoring, endoscopy findings — cannot be ‘seen’ as a structure |
Can exist without symptoms? | Yes — many hiatus hernias cause no symptoms | By definition, GORD involves symptoms or mucosal injury |
Can exist without the other? | Yes — hiatus hernia without reflux | Yes — GORD without hiatus hernia |
Common relationship | Hiatus hernia is a major risk factor for GORD — but does not always cause it | GORD can occur with or without a hiatus hernia |
Treatment target | The structural hernia — repair the defect, restore anatomy | The acid reflux — suppress acid or restore anti-reflux barrier |
How Are Hiatus Hernia and GORD Diagnosed?
Both conditions share symptoms and investigations, which is why they are often diagnosed together. The investigations used depend on the clinical presentation and what information is needed to guide treatment.
Gastroscopy (upper endoscopy)
Gastroscopy is the most important investigation for both conditions. It allows direct visualisation of the oesophagus, stomach and duodenum. At gastroscopy, Dr Kaushal can identify and assess: the size and type of hiatus hernia, the degree of oesophageal inflammation (oesophagitis) caused by acid reflux, the presence of Barrett’s oesophagus (a pre-cancerous change in the oesophageal lining caused by longstanding acid exposure), ulcers, polyps, and other mucosal abnormalities, and can take biopsies for histological assessment.
24-hour pH monitoring or pH-impedance study
A thin probe is placed in the oesophagus and worn for 24 hours. It records the frequency, duration and severity of acid and non-acid reflux events throughout the day and night. This is particularly useful when symptoms do not clearly correlate with acid reflux on gastroscopy, or when surgery is being planned. pH-impedance monitoring can detect non-acid (bile) reflux episodes that standard pH monitoring misses.
CT or barium swallow
CT scanning of the chest and abdomen is useful for large or complex hiatus hernias — particularly para-oesophageal (Type II–IV) hernias — to assess the anatomy and contents of the hernial sac before planning surgical repair. Barium swallow provides a dynamic view of the oesophagus, gastro-oesophageal junction and hernia.
Oesophageal manometry
Measures the pressure and coordination of contractions throughout the oesophagus and at the lower oesophageal sphincter. Required before anti-reflux surgery to assess oesophageal motility — abnormal motility can affect surgical outcomes and the type of procedure recommended.
Blood tests
Blood tests are not diagnostic for hiatus hernia or GORD, but a full blood count, iron studies and iron deficiency assessment are relevant — longstanding oesophagitis and oesophageal ulceration can cause chronic blood loss.
Medical Management — The First-Line Approach
For the majority of patients with GORD and sliding hiatus hernia, medical management is the appropriate first-line treatment. Surgical assessment is considered when medical management is inadequate, not tolerated, or when the patient prefers a long-term surgical solution after appropriate investigation.
Lifestyle modifications:
- Weight loss — even modest weight reduction significantly reduces reflux frequency and severity in overweight patients
- Elevate the head of the bed by 15 to 20 cm — reduces overnight reflux
- Avoid meals within 2 to 3 hours of lying down
- Reduce dietary triggers — fatty foods, chocolate, caffeine, alcohol, carbonated drinks, spicy foods
- Stop smoking
- Avoid tight clothing around the waist
Medications:
- Proton pump inhibitors (PPIs — omeprazole, esomeprazole, pantoprazole): Reduce acid production and are the most effective medical treatment for GORD symptoms and oesophagitis healing. Most patients with GORD respond well to once or twice daily PPI therapy.
- H2 receptor antagonists (famotidine): Less potent acid suppression than PPIs. May be used as an alternative or for breakthrough symptoms.
- Antacids and alginates: Provide short-term symptomatic relief. Not appropriate as sole long-term management.
Do not stop prescribed PPIs without medical advice: Some patients require long-term PPI therapy for Barrett’s oesophagus surveillance or severe oesophagitis. The decision to stop, reduce or switch medication should be made with your GP or specialist. |
When Is Surgery Needed?
Surgery for hiatus hernia and GORD is not required for every patient. It is considered in specific clinical circumstances after thorough assessment. The decision involves careful individual evaluation of symptoms, investigation results, the type and size of hernia, and the patient’s overall health and preferences.
Surgery may be appropriate for GORD when:
- Symptoms are not adequately controlled despite an adequate trial of PPI therapy at appropriate dose and duration
- The patient cannot tolerate or does not wish to take lifelong PPIs
- Reflux is confirmed objectively on pH monitoring but not responding to medication
- There is significant oesophagitis that persists despite medical treatment
- Atypical reflux symptoms — such as chronic cough, laryngitis or asthma — are objectively proven to be acid-related and not responding to medication
- The patient has been fully counselled about the risks and benefits of surgery versus long-term medical management
Surgery may be appropriate for hiatus hernia when:
- A large para-oesophageal (Type II–IV) hernia is present — these carry a risk of complications including volvulus, obstruction and strangulation, and repair is generally recommended even in the absence of significant symptoms
- The hernia is causing significant symptoms — chest tightness, difficulty swallowing, early satiety, respiratory symptoms from gastric displacement — not controlled by medical measures
- Iron deficiency anaemia from chronic oesophageal bleeding or Cameron’s lesions within the hernia sac
- Emergency presentation with acute obstruction or volvulus of the herniated stomach — this is a surgical emergency
Important: Surgery is not appropriate for every patient with GORD or hiatus hernia. It carries operative risks including bleeding, perforation, dysphagia, gas-bloat syndrome, wrap failure and the possibility of recurrence. Patient selection — including oesophageal manometry to assess motility — is essential. Dr Kaushal discusses all risks and alternatives openly at consultation. |
What Does Hiatus Hernia and Anti-Reflux Surgery Involve?
The standard surgical approach for both hiatus hernia repair and anti-reflux surgery is laparoscopic (keyhole) surgery — performed under general anaesthesia through small incisions in the abdomen. Open surgery is rarely required.
Laparoscopic fundoplication
The most commonly performed anti-reflux operation. The upper portion of the stomach (the fundus) is wrapped around the lower oesophagus to recreate and reinforce the anti-reflux valve at the gastro-oesophageal junction. The hiatus is also repaired at the same time if a hiatus hernia is present. The wrap can be complete (Nissen — 360 degree) or partial (Toupet — 270 degree), depending on oesophageal motility findings and surgeon assessment.
Laparoscopic hiatus hernia repair
For large para-oesophageal or mixed hernias, the herniated stomach is reduced back into the abdomen, the hernia sac is dissected and removed, and the crural defect (opening in the diaphragm) is repaired with sutures. Mesh may be used in selected cases to reinforce the repair and reduce the risk of recurrence, though its use is individualised as it carries its own considerations.
What to Expect | Details |
Hospital stay | Usually 1 to 2 nights for fundoplication. Longer for large para-oesophageal hernia repair depending on complexity. |
Anaesthesia | General anaesthesia. Procedure performed laparoscopically. |
Operative time | Approximately 1 to 2 hours depending on complexity. |
Diet post-op | Liquid to soft diet for the first 4 to 6 weeks as the wrap settles. Gradual reintroduction of normal foods. |
Return to work | Desk work typically 2 to 3 weeks. Physical work 4 to 6 weeks. |
Common early side effects | Difficulty swallowing (dysphagia) — common in the first weeks as post-operative swelling settles. Usually resolves. Gas bloat — difficulty belching after a complete wrap. |
Recurrence | Hiatus hernia can recur after repair. Reflux symptoms can recur over time if the wrap loosens or fails. Long-term follow-up is recommended. |
Barrett's Oesophagus — An Important Complication of GORD
It is a condition in which the normal squamous lining of the lower oesophagus is replaced by specialised intestinal-type cells — a change driven by longstanding acid and bile exposure. Barrett’s oesophagus is significant because it is the recognised precursor to oesophageal adenocarcinoma — one of the fastest-rising cancers in Australia.
Not everyone with GORD develops Barrett’s oesophagus, and not everyone with Barrett’s develops cancer. However, the diagnosis requires ongoing surveillance gastroscopy at recommended intervals, the frequency of which depends on the length of Barrett’s segment and the presence or absence of dysplasia on biopsy.
is identified at gastroscopy and confirmed on biopsy. If you have longstanding GORD — particularly if you are male, aged over 50, overweight, or have had symptoms for more than five years — gastroscopy to assess the oesophageal lining is a clinically important investigation.
Frequently Asked Questions
I have been told I have a hiatus hernia — do I need surgery?
Not necessarily. The majority of hiatus hernias — particularly small sliding hernias — do not require surgical repair. Many are found incidentally and cause no significant symptoms. Management with lifestyle modification and PPIs is appropriate for most patients with symptomatic sliding hiatus hernia and associated GORD. Surgery is considered when symptoms are not controlled medically, when the patient prefers surgical management after full counselling, or when a large para-oesophageal hernia is identified that carries a risk of complications.
I have been taking omeprazole for years — is this safe long-term?
Long-term PPI therapy is prescribed for many patients with GORD, oesophagitis or Barrett’s oesophagus and is considered appropriate when clinically indicated. As with any long-term medication, ongoing review with your GP or specialist is appropriate to assess whether continued treatment is necessary and at the lowest effective dose. Concerns about long-term PPI use — including bone density, kidney function and magnesium levels — can be discussed with your GP. Do not stop prescribed PPIs without medical advice.
How do I know if my heartburn is GORD or something more serious?
Occasional heartburn after a heavy meal, alcohol or spicy food is common and usually not concerning. Persistent heartburn — occurring more than twice weekly for more than 4 weeks — warrants a GP assessment. Features that require more urgent evaluation include difficulty swallowing, unintentional weight loss, vomiting, black or bloody stools, anaemia, or new symptoms in a person over 50. Chest pain that could be cardiac in origin should always be assessed urgently.
What is the difference between fundoplication and hiatus hernia repair?
Hiatus hernia repair involves closing the diaphragmatic defect through which the stomach has herniated — restoring the stomach to its correct anatomical position and repairing the crural opening. Fundoplication involves wrapping the upper stomach around the lower oesophagus to recreate the anti-reflux valve. The two procedures are frequently performed together — when both a hernia and significant reflux are present, repair of the hernia and fundoplication are typically combined at the same laparoscopic operation.
Can hiatus hernia come back after surgery?
Yes — recurrence of hiatus hernia after surgical repair is a recognised occurrence, with reported rates varying depending on hernia size, type, surgical technique, and follow-up duration. Symptoms can also recur if the fundoplication wrap loosens or fails over time. Long-term follow-up after anti-reflux and hiatus hernia surgery is recommended. The decision to operate takes into account the likelihood and implications of recurrence alongside the benefits of repair.
Do I need gastroscopy before seeing the surgeon?
A gastroscopy report is helpful but not always required before your first surgical consultation. Dr Kaushal can assess your symptoms, review any existing investigations, and arrange gastroscopy as part of the workup if one has not already been performed. A GP referral and any previous blood tests, imaging or endoscopy reports should be brought to the appointment.
Upper GI Surgical Assessment — Campbelltown
If you have been told you have a hiatus hernia, have longstanding reflux symptoms not controlled by medication, or would like a specialist assessment — Dr Kaushal provides upper GI surgical consultations and gastroscopy at 4 Hyde Parade, Campbelltown. A GP referral is recommended and required for Medicare rebates.
4 Hyde Parade, Campbelltown NSW 2560 Phone: (02) 7906 8312 Email: [email protected] | drdeveshkaushal.com.au Office Hours: Monday – Friday, 9:00 AM – 5:00 PM Current hospital appointments and accreditations include: Sydney Southwest Private Hospital Liverpool | Campbelltown Public Hospital | Campbelltown Private Hospital | The George Hospital Medicare rebates and private health insurance benefits may apply depending on the service, referral and individual policy. Please contact the rooms and your insurer regarding fees and potential out-of-pocket costs. |
General information only: This article provides general educational information. It does not replace assessment or personalised advice from your GP or specialist. If you have persistent reflux, difficulty swallowing, unexplained weight loss or chest pain, see your GP. Seek urgent care for chest pain that may be cardiac, severe vomiting or inability to swallow. |
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