A Common Finding at Gastroscopy — Explained by a Campbelltown Upper GI Surgeon
General Information Only: This article provides general educational information about bile reflux. It does not replace a consultation with a qualified medical practitioner. Every patient’s situation is different. If you are experiencing symptoms described in this article, please see your GP and seek appropriate specialist assessment. |
A Common Finding — More Often Than You Might Expect
Bile reflux is one of the findings I see regularly when performing gastroscopy in my Campbelltown practice. It presents in a way that may be consistent with bile reflux. These endoscopic findings — including bile-stained fluid in the stomach and mucosal changes such as erythema or granularity — should always be interpreted alongside symptoms, histological findings, and the clinical context, rather than in isolation.
What strikes me about bile reflux clinically is how frequently it is found in patients whose symptoms are attributed entirely to acid reflux — and how differently it behaves. Bile reflux does not respond well to standard acid-suppressing medications. It requires a different diagnostic approach and, often, a different management strategy. Yet many patients with bile reflux spend months or years on proton pump inhibitors without adequate relief, not understanding why their treatment is not working.
This article explains what bile reflux is, how it differs from acid reflux, what it looks like at gastroscopy, why it occurs, and what can be done about it — for patients across Campbelltown, Liverpool, Camden, and the Macarthur region who may be experiencing symptoms that have not been fully explained.
Gastroscopy available in Campbelltown — 4 Hyde Parade, Campbelltown NSW 2560 Contact the rooms to discuss current availability | drdeveshkaushal.com.au | (02) 7906 8312 |
This article explains what bile reflux is, how it differs from acid reflux, what it looks like at gastroscopy, why it occurs, and what can be done about it — for patients across Campbelltown, Liverpool, Camden, and the Macarthur region who may be experiencing symptoms that have not been fully explained.
Gastroscopy available in Campbelltown — 4 Hyde Parade, Campbelltown NSW 2560 Contact the rooms to discuss current availability | drdeveshkaushal.com.au | (02) 7906 8312 |
What Is Bile and Where Does It Normally Go?
Bile is a yellow-green digestive fluid produced continuously by the liver — approximately 500 to 1000ml per day. It is stored and concentrated in the gallbladder between meals, then released into the duodenum (the first part of the small intestine) when fat-containing food arrives. Its primary function is to emulsify dietary fat — breaking it into smaller droplets so that digestive enzymes can process it.
In a normally functioning digestive system, bile flows in one direction only: from the gallbladder, through the bile duct, into the duodenum, and down through the small intestine. The pyloric valve — a muscular ring at the junction of the stomach and duodenum — controls this flow, preventing duodenal contents (including bile) from entering the stomach.
Bile reflux occurs when this system breaks down — and bile flows in the wrong direction, entering the stomach and sometimes the oesophagus.
Acid Reflux vs Bile Reflux — Two Different Problems
Bile vs Acid Reflux are frequently confused because they share several symptoms. However, they are distinct conditions with different mechanisms, different responses to treatment, and different long-term implications. Understanding the difference is essential — because treating bile reflux with acid suppressants alone is often inadequate.
|
Feature |
Acid Reflux (GORD) |
Bile Reflux |
|
What refluxes back |
Stomach acid (hydrochloric acid) |
Bile — alkaline digestive fluid from liver/duodenum |
|
pH of refluxate |
Acidic — pH below 4 |
Alkaline — pH above 7 |
|
Heartburn |
Classic burning sensation — very common |
May be present but often less prominent |
|
Upper abdominal pain |
Common — relieved by antacids |
Often constant — poorly relieved by antacids |
|
Nausea |
Moderate |
Often prominent — bitter or bilious taste |
|
Response to PPIs |
Usually good — symptoms improve significantly |
Often poor — bile is alkaline, PPIs may improve symptoms in patients with mixed acid and bile reflux but are generally less effective for isolated bile reflux |
|
Gastroscopy appearance |
Oesophagitis, erosions, red lining |
Greenish bile in stomach, erythematous/granular lining, bile gastritis |
|
Cancer risk |
Barrett’s oesophagus — oesophageal adenocarcinoma |
Bile gastritis associated with increased gastric cancer risk in some studies |
|
Primary treatment |
PPIs, lifestyle, fundoplication |
Bile acid binders, promotility agents, dietary measures, surgery in selected cases |
What Bile Reflux Looks Like at Gastroscopy
Gastroscopy — upper endoscopy — is the investigation commonly used in the assessment of suspected bile reflux. It is important to note that endoscopic appearances alone are not diagnostic — the overall clinical picture, including symptoms, histological findings, and where appropriate, additional investigations, should be considered when making a diagnosis. In clinical practice, the endoscopic findings of bile reflux are sometimes described in the literature — findings that may suggest bile reflux when interpreted in the appropriate clinical context:
Endoscopic Finding | What It Means Clinically |
Greenish-yellow bile-stained fluid pooled in the stomach | A small amount of bile in the fasting stomach may be seen in otherwise normal individuals and does not in isolation confirm pathological bile reflux. Significant pooling, in the context of symptoms and other findings, is more clinically relevant. |
Erythematous (reddened) gastric mucosa | Bile acids are capable of contributing to mucosal irritation and inflammation with prolonged exposure. The reddened lining may reflect bile-induced chemical gastropathy, though these appearances are not specific to bile reflux and can be seen in other forms of chemical gastritis. |
Granular or nodular mucosal pattern | A granular or nodular mucosal surface in the stomach, particularly in the antrum, may be seen in bile reflux gastritis but is not specific to this condition — similar appearances can occur in other forms of chemical gastropathy and should always be interpreted in the context of symptoms and histological findings. |
Bile in the oesophagus | When bile refluxes high enough to reach the oesophagus, the oesophageal lining is exposed to a combination of acid and bile — a more damaging combination than either alone. |
Patchy mucosal erythema and erosions |
In more significant bile reflux gastritis, erosions and areas of focal mucosal injury may be visible. |
|
Normal or near-normal appearance |
An important point — some patients with symptomatic bile reflux have endoscopically normal-appearing mucosa. The absence of visible changes does not exclude the diagnosis. |
|
Biopsy during gastroscopy: When bile reflux gastritis is suspected, biopsies are taken from the gastric antrum and body. Biopsy findings that may be consistent with chemical gastropathy include foveolar hyperplasia, smooth muscle proliferation in the lamina propria, and presence of chemical-type gastritis changes. It should be noted that H. pylori infection and chemical gastropathy may coexist — histology helps identify the predominant pattern rather than requiring H. pylori to be absent. |
What Causes Bile Reflux?
Bile reflux typically results from dysfunction or disruption of the normal barriers that prevent duodenal contents from entering the stomach. Several mechanisms are involved:
Previous gastric surgery — the well-recognised cause
The pyloric valve is the primary barrier preventing bile from entering the stomach. Any operation that removes, bypasses, or disrupts the pylorus creates conditions for bile reflux. Operations associated with significant bile reflux include:
- Partial gastrectomy with Billroth I or II reconstruction — historically the most common surgical cause
- Pyloroplasty — widening of the pyloric outlet for other surgical indications
- One anastomosis gastric bypass (OAGB / mini-gastric bypass) — the bile limb can result in bile reflux into the gastric pouch or oesophagus in a proportion of patients
- Cholecystectomy (gallbladder removal) — alters bile flow dynamics. Bile previously stored in the gallbladder now flows continuously, and the increased duodenal bile load may increase the likelihood of bile entering the stomach in susceptible individuals
Pyloric dysfunction without prior surgery
In patients without previous surgery, bile reflux can occur due to abnormal relaxation or incompetence of the pyloric valve. This can be associated with delayed gastric emptying (gastroparesis), where the stomach does not empty normally and bile pools. Certain medications, including regular use of non-steroidal anti-inflammatory drugs (NSAIDs), may contribute to gastric mucosal injury and altered upper GI motility, though the direct relationship between specific medications and bile reflux is less well established.
Combination with GORD
Bile reflux frequently co-exists with acid reflux. When both bile and acid reflux simultaneously into the oesophagus — termed duodenogastro-oesophageal reflux (DGER) — the combination is significantly more damaging to the oesophageal lining than either alone. This mixed reflux is associated with a higher rate of severe oesophagitis, Barrett’s oesophagus, and oesophageal cancer than acid reflux alone.
Symptoms of Bile Reflux
The symptoms of bile reflux overlap significantly with acid reflux and many other upper gastrointestinal conditions — including functional dyspepsia, gastroparesis, peptic ulcer disease, and gastritis of other causes. No single symptom is specific to bile reflux, which is why investigation is needed rather than diagnosis on the basis of symptoms alone. The following features are characteristic of bile reflux and help distinguish it from pure acid-related disease:
Upper abdominal pain that is constant or recurrent — poorly relieved by antacids or proton pump inhibitors. This is one of the most distinguishing clinical features. If heartburn-type symptoms fail to improve on adequate PPI therapy, bile reflux should be considered. |
Nausea — may be a prominent feature in some patients, though it is non-specific and occurs in many upper gastrointestinal conditions. |
Bilious vomiting — vomiting that produces greenish-yellow bile-stained fluid. Highly characteristic of bile reflux when present, though not all patients vomit. |
Bitter or sour taste in the mouth — the bitter taste of bile in the throat or mouth, distinct from the acidic taste of acid reflux. |
Heartburn — may be present but is often less prominent or less severe than in typical acid GORD. |
Weight loss — in cases with significant symptoms affecting appetite and food intake. Unintentional weight loss with upper GI symptoms always warrants investigation. |
Early satiety and loss of appetite — particularly when bile reflux is associated with gastroparesis or significant gastritis. |
Key clinical pointer: If you have been taking a proton pump inhibitor (omeprazole, esomeprazole, pantoprazole, or similar) for more than 8 weeks without satisfactory symptom relief, the possibility of bile reflux contributing to your symptoms warrants investigation — specifically gastroscopy. |
How Is Bile Reflux Diagnosed?
Diagnosing bile reflux requires clinical assessment combined with appropriate investigations. Because bile reflux cannot be reliably diagnosed on symptoms alone — and because it frequently co-exists with acid reflux — objective investigation is essential for accurate diagnosis and appropriate management.
1 | Gastroscopy (Upper Endoscopy) Gastroscopy is the first-line investigation. It may demonstrate bile within the stomach, allows assessment of associated mucosal changes, enables biopsies to evaluate for chemical gastropathy, intestinal metaplasia, H. pylori infection (which must be excluded), and Barrett’s oesophagus. Performed under light sedation — 15 to 20 minutes. Available at Dr Kaushal’s Campbelltown practice. |
2 | Histopathology (Biopsy Analysis) Biopsies from the stomach and oesophagus are examined by a pathologist. Bile reflux gastritis has characteristic histological features — foveolar hyperplasia, chemical-type gastritis, absence of predominant H. pylori infection, and smooth muscle proliferation. Intestinal metaplasia in the stomach is of particular clinical significance due to its association with gastric cancer risk. |
3 | Ambulatory pH-Impedance Monitoring A 24-hour monitoring study using a probe in the oesophagus that detects both acidic and non-acidic reflux events. This test can detect non-acid reflux events that would be missed by standard pH monitoring alone. It is important to note that impedance monitoring identifies non-acidic reflux but does not directly confirm the presence of bile in the refluxate — further testing may be needed to characterise the refluxate composition. Useful when the diagnosis is in doubt or when planning surgical treatment. |
4 | Hepatobiliary (HIDA) Scan A nuclear medicine imaging study that tracks bile flow. Can demonstrate bile reflux into the stomach by showing radiotracer (which labels bile) moving retrograde from the duodenum into the stomach. HIDA scanning is rarely performed in routine clinical practice for bile reflux assessment and is typically reserved for complex or post-surgical cases where other investigations have been inconclusive. |
5 | Gastric Emptying Study When gastroparesis is suspected as a contributing factor, a formal gastric emptying study (scintigraphy) assesses how efficiently the stomach empties. Delayed gastric emptying may contribute to prolonged bile exposure and worsening symptoms in affected patients. |
How Is Bile Reflux Treated?
Treatment of bile reflux is tailored to the severity of symptoms, the presence and degree of mucosal injury on gastroscopy, and the underlying cause. Because bile is alkaline — not acidic — acid-suppressing medications alone have limited effectiveness in bile reflux, though they may help when combined with acid reflux.
Lifestyle and Dietary Measures
These form the foundation of initial management and provide the most benefit in mild cases:
- Eat smaller, more frequent meals — reduces the volume of food in the stomach and the stimulus for pyloric relaxation
- Avoid lying down for 2 to 3 hours after eating — gravity helps keep duodenal contents in the duodenum
- Elevate the head of the bed by 15 to 20cm — reduces overnight bile exposure to the oesophagus
- Consider reducing fatty meals if they worsen your symptoms — fat may stimulate bile secretion and worsen symptoms in susceptible individuals
- Reduce or eliminate alcohol — alcohol may worsen upper GI symptoms in some patients — consider reducing intake if you notice it worsens your symptoms
- Avoid regular use of NSAIDs — ibuprofen, naproxen, aspirin — which can cause direct gastric mucosal injury and may worsen upper GI symptoms in patients with existing gastritis
- Stopping smoking — smoking may worsen upper GI symptoms including reflux in some patients
- Reducing caffeine if it appears to worsen your individual symptoms — evidence is inconsistent and this should be individualised
Medications
Medical treatment of bile reflux targets bile acid toxicity and gastric emptying:
Medication Class | Role in Bile Reflux |
Ursodeoxycholic acid (UDCA — Ursofalk, Actigall) | A bile acid that is less toxic to the gastric and oesophageal mucosa than primary bile acids. Replaces toxic bile acids in the bile pool, reducing mucosal irritation. UDCA is sometimes prescribed in selected patients and may improve symptoms, although the supporting evidence remains limited and patient response is variable. |
Proton pump inhibitors (PPIs — omeprazole, esomeprazole) | Reduce acid secretion — helpful when bile reflux co-exists with acid reflux, and may reduce the overall volume of refluxate. Limited direct effect on bile itself but may improve symptoms in mixed reflux. Often used in combination with UDCA. |
Prokinetic agents (metoclopramide, domperidone) | Accelerate gastric emptying and increase pyloric tone — reducing the opportunity for bile to reflux into the stomach. Most useful when delayed gastric emptying is a contributing factor. |
Cholestyramine (bile acid sequestrant) | Binds bile acids in the gut. Occasionally considered but supporting evidence is limited and tolerability can be poor. |
Antacids / alginates | Neutralise acid and provide a physical barrier in the oesophagus. Limited specific effect on bile but may provide some symptomatic relief in mild cases. |
Surgical Treatment — When Medical Management Is Insufficient
For patients with severe, refractory bile reflux not controlled by lifestyle and medical measures — particularly in the post-surgical setting or where structural abnormality is identified — surgical options are available. These are considered on an individual basis following thorough assessment:
- Roux-en-Y diversion: A recognised surgical option that may be considered for carefully selected patients with refractory bile reflux not controlled by lifestyle and medical measures. The bile-carrying limb of the small intestine is rerouted (as in Roux-en-Y reconstruction) to divert bile well away from the stomach. This is the standard surgical correction for post-gastrectomy bile reflux and is also used in selected cases of refractory non-surgical bile reflux. This reconstruction is intended to substantially reduce bile exposure to the gastric pouch or oesophagus by diverting the bile-carrying limb. Outcomes vary depending on individual anatomy and surgical technique.
- Laparoscopic fundoplication: Fundoplication is primarily an operation for gastro-oesophageal reflux disease and is not routinely performed for isolated bile reflux. It may be considered in selected patients where significant acid reflux and bile reflux coexist, following thorough individual assessment.
- Conversion of OAGB to Roux-en-Y gastric bypass: Patients with significant bile reflux after one anastomosis gastric bypass may be considered for conversion to standard Roux-en-Y gastric bypass, which intended to substantially reduce bile reflux by altering the anatomy to divert bile away from the gastric pouch and oesophagus.
- Surgical management of gastroparesis: In cases where severely delayed gastric emptying drives bile reflux, surgical options to improve gastric emptying may be considered.
Surgical treatment for bile reflux is only considered after: thorough investigation confirming the diagnosis, an adequate trial of lifestyle and medical management, and careful individual assessment of risks and benefits. Not every patient with bile reflux found at gastroscopy requires or benefits from surgical intervention. Dr Kaushal discusses all management options openly at consultation. |
Long-Term Implications of Untreated Bile Reflux
Persistent bile reflux may be associated with ongoing mucosal irritation. The following potential long-term associations have been described in the literature, though the strength of evidence varies and causal relationships are not always established:
- Bile reflux gastritis: Chronic bile exposure causes ongoing inflammation of the gastric lining. In the stomach, chronic bile exposure may contribute to gastric mucosal inflammation. Some observational studies have suggested an association between chronic bile reflux gastritis, intestinal metaplasia, and gastric cancer, although a direct causal relationship has not been definitively established.
- Barrett’s oesophagus: When bile refluxes into the oesophagus alongside acid, the combination may be associated with higher rates of oesophageal injury than acid alone, though the independent contribution of bile is difficult to isolate in clinical studies.
- Oesophageal adenocarcinoma: Barrett’s oesophagus is the precursor to oesophageal adenocarcinoma — one of the fastest-rising cancers in Australia. The potential role of bile in oesophageal carcinogenesis remains an active area of research.
- Nutritional consequences: Significant bile reflux symptoms — nausea, vomiting, loss of appetite — can lead to reduced dietary intake, weight loss, and nutritional deficiency over time, particularly in the post-surgical setting.
Surveillance considerations: Where intestinal metaplasia is identified on biopsy, surveillance recommendations depend on its extent, distribution, and other individual factors in line with current guidelines. Not all patients with intestinal metaplasia require the same surveillance approach. Dr Kaushal will advise on the most appropriate plan for your specific findings following discussion with your GP and, where appropriate, a gastroenterologist. |
Bile Reflux After Gallbladder Removal — What Patients Should Know
Gallbladder removal (laparoscopic cholecystectomy) is one of the most commonly performed abdominal operations in Australia. Following cholecystectomy, bile flow dynamics change — bile is no longer stored and concentrated in the gallbladder between meals but flows more continuously into the duodenum.
Some studies have demonstrated an increased prevalence of duodenogastric reflux following cholecystectomy, although many patients remain asymptomatic and the relationship is likely multifactorial. A subset of patients do develop new upper gastrointestinal symptoms after cholecystectomy, though the precise contribution of bile reflux to these symptoms can be difficult to establish without investigation. Bile reflux is only one of several possible explanations for persistent upper gastrointestinal symptoms after cholecystectomy — other causes including post-cholecystectomy syndrome, functional dyspepsia, and gastroparesis should also be considered.
Not every patient develops symptomatic bile reflux after cholecystectomy — in fact, the majority do not. But for those who do, it is an important diagnosis to consider rather than attributing symptoms to irritable bowel or functional dyspepsia without proper investigation. A gastroscopy can identify bile in the stomach and assess the gastric mucosa for bile gastritis.
New symptoms after cholecystectomy: If you develop persistent upper abdominal symptoms — nausea, epigastric pain, bilious taste, or vomiting — weeks to months after gallbladder removal, mention this to your GP and ask about a referral for gastroscopy. Bile reflux after cholecystectomy is a recognised and treatable condition. |
Frequently Asked Questions — Bile Reflux
Is bile reflux the same as acid reflux?
No. Although they share some symptoms, acid reflux involves stomach acid flowing back into the oesophagus, while bile reflux involves bile — a digestive fluid produced by the liver — flowing back into the stomach and sometimes the oesophagus. Bile is alkaline, not acidic, which is why acid-suppressing medications are often ineffective for bile reflux. Many patients have both conditions simultaneously — called mixed or combined reflux.
I have been on omeprazole for months and still have symptoms — could it be bile reflux?
Yes, this is an important and common clinical scenario. Proton pump inhibitors like omeprazole reduce stomach acid but do not directly address bile reflux. They may still improve symptoms when acid reflux and bile reflux coexist, but are unlikely to provide complete relief if bile reflux is the predominant mechanism. If your upper GI symptoms have not improved adequately after 8 or more weeks on appropriate PPI therapy, this warrants further investigation — specifically gastroscopy — to assess whether bile reflux is contributing to your symptoms. Please discuss this with your GP and request a referral for gastroscopy.
Will I get bile reflux after gallbladder removal?
The majority of patients who undergo gallbladder removal do not develop clinically significant bile reflux. In a subset of patients, some studies have shown an increased prevalence of duodenogastric reflux following cholecystectomy, though the relationship is multifactorial and most remain asymptomatic. If you develop new persistent upper gastrointestinal symptoms after gallbladder removal — particularly nausea, epigastric pain, or a bitter taste — this warrants investigation rather than indefinite symptomatic management.
Is bile reflux dangerous?
In most patients, bile reflux causes troublesome symptoms without leading to serious complications. However, persistent untreated bile reflux gastritis is associated with gastric intestinal metaplasia — a precancerous mucosal change — and with higher rates of Barrett’s oesophagus when bile reaches the oesophagus combined with acid. This is why proper investigation, diagnosis, and management are clinically important rather than indefinite symptomatic treatment without assessment.
How is bile reflux treated?
Initial management combines lifestyle measures (smaller meals, avoiding lying down after eating, avoiding fatty foods, NSAIDs, and alcohol) with medications — particularly ursodeoxycholic acid (UDCA), which makes bile less toxic, and prokinetic agents to improve gastric emptying. In refractory cases not responding to medical management, surgical diversion of bile away from the stomach (Roux-en-Y reconstruction) may be considered after thorough assessment.
How do I get a gastroscopy for bile reflux in Campbelltown?
See your GP and request a referral to Dr Kaushal at 4 Hyde Parade, Campbelltown NSW 2560. Call (02) 7906 8312 or book online at drdeveshkaushal.com.au. Dr Kaushal performs gastroscopy in Campbelltown and can assess for bile reflux, bile gastritis, and associated conditions including Barrett’s oesophagus. A GP referral is required for Medicare rebates.
Persistent Upper GI Symptoms? A Gastroscopy Provides the Answers
If you have been living with persistent upper abdominal symptoms — nausea, epigastric pain, a bitter taste, or symptoms not responding to acid-suppressing medication — bile reflux may be contributing. A gastroscopy can provide important diagnostic information — it allows direct visualisation of the stomach and oesophagus, identifies the presence of bile, assesses the mucosal lining, and enables biopsies to help guide appropriate management.
Dr Devesh Kaushal performs gastroscopy in Campbelltown for patients across South Western Sydney — including Campbelltown, Liverpool, Camden, Narellan, and Gregory Hills. Both public and private patients are welcome.
Contact Dr Devesh Kaushal Campbelltown Consulting Rooms | 4 Hyde Parade, Campbelltown NSW 2560 Phone: (02) 7906 8312 Email: [email protected] Book Online: drdeveshkaushal.com.au Office Hours: Monday – Friday, 9:00 AM – 5:00 PM Operating at: Sydney Southwest Private Hospital Liverpool | Campbelltown Public Hospital | Campbelltown Private Hospital | The George Hospital Appointments available — contact the rooms to discuss current availability | Medicare & Private Health Insurance Accepted |
Medical Disclaimer: The information in this article is for general educational purposes only. It does not constitute medical advice and does not replace a consultation with a qualified medical practitioner. If you are experiencing upper gastrointestinal symptoms, see your GP for assessment and referral. In a medical emergency, call 000. |
Key References
The following key references informed the content of this article. Clinicians and patients seeking further detail are directed to these sources:
- Shi X, et al. Bile reflux gastritis: Insight into pathogenesis, relevant factors, carcinomatous risk, diagnosis, and management. Gastroenterology Research and Practice. 2022; doi:10.1155/2022/2642551
- Othman AA, et al. Bile reflux gastropathy: Prevalence and risk factors after therapeutic biliary interventions. Annals of Medicine and Surgery. 2021; doi:10.1016/j.amsu.2021.103168
- Katz PO, Dunbar KB, Schnoll-Sussman FH, et al. ACG Clinical Guideline for the Diagnosis and Management of Gastroesophageal Reflux Disease. American Journal of Gastroenterology. 2022;117(1):27-56. doi:10.14309/ajg.0000000000001538
- Feldman M, et al. Gastritis and gastropathy. In: Sleisenger and Fordtran’s Gastrointestinal and Liver Disease. 11th ed. Elsevier; 2021
- Odze RD, eds. Inflammatory disorders of the stomach. In: Odze and Goldblum Surgical Pathology of the GI Tract. 4th ed. Elsevier; 2023
- Hailstone L, et al. Medium-Term Outcomes from a Series of 1000 One Anastomosis Gastric Bypass in Australia: A Case Series. Obesity Surgery. 2024; doi:10.1007/s11695-024-07213-5
- Mayo Clinic. Bile reflux — Diagnosis and treatment. https://www.mayoclinic.org/diseases-conditions/bile-reflux. Accessed 2024
- Gastroenterological Society of Australia (GESA). Clinical guidelines for the management of upper gastrointestinal conditions. gesa.org.au
- Brunicardi FC, et al. Stomach. In: Schwartz’s Principles of Surgery. 11th ed. McGraw Hill; 2019
This article was reviewed for clinical accuracy and AHPRA advertising compliance. Information is provided for general educational purposes and does not constitute medical advice. Recommendations and evidence summaries reflect the literature available at the time of writing and should be interpreted in the context of individual patient assessment.