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Gastroenterology
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Acute Oesophagitis

High EvidenceUpdated: 2025-12-25

On This Page

Red Flags

  • Dysphagia (difficulty swallowing)
  • Odynophagia (painful swallowing)
  • Upper GI bleeding
  • Food impaction
  • Weight loss
  • Chest pain
  • Persistent symptoms despite treatment
Overview

Acute Oesophagitis

1. Clinical Overview

Summary

Acute oesophagitis is sudden inflammation of the esophagus (the tube that carries food from your mouth to your stomach), most commonly caused by stomach acid refluxing back up (gastroesophageal reflux disease, or GERD). Think of your esophagus as a pipe with a one-way valve at the bottom—when that valve doesn't work properly, stomach acid flows backward, burning and inflaming the esophagus. Other causes include infections (especially in immunocompromised patients), medications (pills getting stuck and dissolving in the esophagus), or caustic substances. This condition is very common, affecting millions of people, and is usually mild and manageable. However, severe cases can cause significant pain, difficulty swallowing, bleeding, or strictures (narrowing). The key to management is identifying the cause (reflux, infection, medications), using acid-reducing medications (PPIs) for reflux-related cases, treating infections if present, and avoiding triggers. Most cases resolve completely with treatment, but some can become chronic or cause complications.

Key Facts

  • Definition: Acute inflammation of the esophageal mucosa
  • Incidence: Very common (millions of cases/year), often undiagnosed
  • Mortality: Very low (<0.1%) unless complications
  • Peak age: All ages, but more common in adults
  • Critical feature: Heartburn, difficulty/painful swallowing
  • Key investigation: Clinical diagnosis (usually), endoscopy if severe or not responding
  • First-line treatment: PPI (omeprazole), lifestyle modifications, treat cause

Clinical Pearls

"Reflux is the most common cause" — Gastroesophageal reflux (GERD) is the most common cause of oesophagitis. Acid from the stomach burns the esophagus, causing inflammation.

"Pills can cause oesophagitis" — Medications (especially bisphosphonates, NSAIDs, antibiotics) can get stuck in the esophagus and cause inflammation. Always take pills with plenty of water, stay upright.

"Infections are rare but important" — In immunocompromised patients (HIV, chemotherapy), infections (Candida, CMV, HSV) can cause oesophagitis. Always consider in high-risk patients.

"Most oesophagitis responds to PPI" — Proton pump inhibitors (like omeprazole) are very effective for reflux-related oesophagitis. If not responding, think of other causes.

Why This Matters Clinically

Acute oesophagitis is very common and usually mild, but can cause significant symptoms and sometimes serious complications (strictures, bleeding, Barrett's esophagus). Early recognition and treatment (PPI, lifestyle modifications) can provide rapid relief and prevent complications. Most cases resolve completely, but some can become chronic or progress to complications if not treated. This is a condition that primary care clinicians see frequently and can manage effectively.


2. Epidemiology

Incidence & Prevalence

  • Overall: Very common (millions of cases/year)
  • GERD-related: Most common cause
  • Trend: Increasing (obesity, diet)
  • Peak age: All ages, but more common in adults

Demographics

FactorDetails
AgeAll ages, but more common in adults
SexSlight male predominance (GERD)
EthnicityNo significant variation
GeographyHigher in Western countries (GERD)
SettingGeneral practice, gastroenterology clinics

Risk Factors

Non-Modifiable:

  • Age (older = more GERD)
  • Hiatal hernia

Modifiable:

Risk FactorRelative RiskMechanism
Obesity2-3xIncreases abdominal pressure
Smoking1.5-2xWeakens lower esophageal sphincter
Alcohol1.5-2xWeakens sphincter, irritates
Certain foods1.5-2xTrigger reflux
Medications2-5xPills can cause inflammation
Immunocompromise5-10xInfection risk

Common Causes

CauseFrequencyTypical Patient
GERD (reflux)70-80%Adults, obesity, hiatal hernia
Medications10-15%Taking pills (bisphosphonates, NSAIDs)
Infections5-10%Immunocompromised (HIV, chemotherapy)
Caustic ingestionRareAccidental or intentional
Other5-10%Various

3. Pathophysiology

The Inflammation Cascade

Step 1: Esophageal Injury

  • Acid reflux: Stomach acid flows backward
  • Medications: Pills get stuck, dissolve in esophagus
  • Infections: Pathogens infect esophagus
  • Caustic: Direct damage from caustic substances
  • Result: Esophageal mucosa becomes damaged

Step 2: Inflammation

  • Immune response: Body responds to injury
  • Inflammatory cells: Infiltrate mucosa
  • Cytokines: Released, cause more inflammation
  • Result: Esophagus becomes inflamed

Step 3: Clinical Manifestation

  • Pain: Heartburn, chest pain, painful swallowing
  • Dysphagia: Difficulty swallowing (if severe)
  • Bleeding: If severe (erosion through vessels)

Step 4: Resolution or Progression

  • Resolution: Most cases resolve (mucosa heals)
  • Chronic: Some become chronic
  • Complications: Strictures, Barrett's esophagus

Classification by Cause

CauseMechanismClinical Features
Reflux (GERD)Acid damageHeartburn, regurgitation
MedicationsPill esophagitisPainful swallowing, pills stuck
InfectionsPathogen infectionOdynophagia, immunocompromised
CausticDirect damageSevere pain, may be life-threatening

Anatomical Considerations

Esophagus Anatomy:

  • Upper sphincter: Prevents air entry
  • Body: Muscular tube
  • Lower sphincter: Prevents reflux (often weak in GERD)

Why Esophagus is Vulnerable:

  • No protection: Unlike stomach, no protective mucus
  • Acid exposure: Very sensitive to acid
  • Pill transit: Pills can get stuck, especially if not taken with water

4. Clinical Presentation

Symptoms: The Patient's Story

Typical Presentation:

Presentation by Cause:

GERD-Related:

Medication-Induced:

Infection-Related:

Signs: What You See

Vital Signs (Usually Normal):

SignFindingSignificance
TemperatureMay be elevated (if infection)Fever
Heart rateUsually normalMay be high if severe pain
Blood pressureUsually normalUsually normal

General Appearance:

Examination:

Red Flags

[!CAUTION] Red Flags — Immediate Escalation Required:

  • Dysphagia (difficulty swallowing) — May indicate stricture, needs investigation
  • Odynophagia (painful swallowing) — May indicate severe inflammation or infection
  • Upper GI bleeding — Severe oesophagitis or other cause, needs endoscopy
  • Food impaction — Obstruction, needs urgent endoscopy
  • Weight loss — May indicate more serious cause
  • Chest pain — May mimic heart pain, needs assessment
  • Persistent symptoms despite treatment — May need endoscopy, other causes

Heartburn
Burning sensation in chest/throat
Regurgitation
Acid/sour taste in mouth
Chest pain
May mimic heart pain
Difficulty swallowing
Dysphagia (if severe)
Painful swallowing
Odynophagia (if severe)
Nausea
May have
5. Clinical Examination

Structured Approach: ABCDE

A - Airway

  • Assessment: Usually patent (unless food impaction)
  • Action: Secure if compromised

B - Breathing

  • Look: Usually normal
  • Listen: Usually normal
  • Measure: SpO2 (usually normal)
  • Action: Support if needed

C - Circulation

  • Look: Usually normal
  • Feel: Pulse (usually normal), BP (usually normal)
  • Listen: Heart sounds (usually normal)
  • Measure: BP (usually normal), HR
  • Action: Monitor if severe

D - Disability

  • Assessment: Usually normal
  • Action: Assess if severe

E - Exposure

  • Look: General examination
  • Feel: Usually normal
  • Action: Complete examination

Specific Examination Findings

Examination:

  • Usually normal: No specific signs of oesophagitis
  • May have: Signs of underlying cause

Signs of Complications (If Severe):

  • Weight loss: If dysphagia severe
  • Dehydration: If unable to swallow

Special Tests

TestTechniquePositive FindingClinical Use
Clinical assessmentHistory and examinationSymptoms suggest oesophagitisUsually sufficient for diagnosis

6. Investigations

First-Line (Bedside) - Do Immediately

1. Clinical Diagnosis (Usually Sufficient)

  • History: Heartburn, regurgitation, risk factors
  • Examination: Usually normal
  • Action: Usually no further tests needed for mild cases

2. Trial of PPI (If Reflux Suspected)

  • Purpose: Diagnostic and therapeutic
  • Finding: Symptoms improve = likely reflux-related
  • Action: Continue if improves

Laboratory Tests

TestExpected FindingPurpose
Full Blood CountUsually normalBaseline
Other testsUsually not neededUnless specific cause suspected

Imaging

Endoscopy (If Indicated)

IndicationFindingClinical Note
Not responding to PPIInflammation, erosionsAssess severity, other causes
DysphagiaStricture, inflammationIdentify cause
BleedingErosions, inflammationConfirm, treat
Age >55, new symptomsRule out cancerImportant

Findings:

  • Erythema: Red, inflamed mucosa
  • Erosions: Superficial breaks
  • Ulcers: Deeper breaks
  • Strictures: Narrowing (if chronic)

Barium Swallow (If Dysphagia):

  • Indication: If endoscopy not available, or assess strictures
  • Finding: May show strictures, inflammation

Diagnostic Criteria

Clinical Diagnosis:

  • Heartburn/regurgitation + risk factors = Likely GERD-related oesophagitis

Severity Assessment:

  • Mild: Minimal symptoms, responds to PPI
  • Moderate: Significant symptoms, may need higher PPI dose
  • Severe: Not responding, dysphagia, bleeding, needs endoscopy

7. Management

Management Algorithm

        SUSPECTED ACUTE OESOPHAGITIS
    (Heartburn, regurgitation, dysphagia)
                    ↓
┌─────────────────────────────────────────────────┐
│         ASSESS SEVERITY                         │
├─────────────────────────────────────────────────┤
│  DYSPHAGIA, BLEEDING, NOT RESPONDING            │
│  → Urgent endoscopy                              │
│  → Assess severity, identify cause               │
│  → Treat accordingly                             │
│                                                  │
│  MILD-MODERATE SYMPTOMS                         │
│  → Clinical diagnosis                            │
│  → Trial of PPI                                  │
│  → Lifestyle modifications                       │
└─────────────────────────────────────────────────┘
                    ↓
┌─────────────────────────────────────────────────┐
│         LIFESTYLE MODIFICATIONS                  │
│  • Weight loss (if obese)                        │
│  • Avoid trigger foods (spicy, fatty, acidic)     │
│  • Elevate head of bed                            │
│  • Avoid lying down after meals                   │
│  • Stop smoking                                   │
│  • Reduce alcohol                                 │
└─────────────────────────────────────────────────┘
                    ↓
┌─────────────────────────────────────────────────┐
│         ACID-REDUCING MEDICATIONS                │
│  • PPI (omeprazole 20-40mg OD)                   │
│  • Duration: 4-8 weeks                            │
│  • Alternative: H2 blocker (ranitidine)         │
│  • Antacids (symptomatic relief)                 │
└─────────────────────────────────────────────────┘
                    ↓
┌─────────────────────────────────────────────────┐
│         CAUSE-SPECIFIC TREATMENT                 │
├─────────────────────────────────────────────────┤
│  MEDICATION-INDUCED                             │
│  → Stop offending medication (if possible)       │
│  → Take with plenty of water                     │
│  → Stay upright after taking                     │
│                                                  │
│  INFECTION                                       │
│  → Identify pathogen (endoscopy, biopsy)        │
│  → Antifungals (Candida)                         │
│  → Antivirals (CMV, HSV)                         │
│                                                  │
│  CAUSTIC                                         │
│  → Urgent endoscopy                               │
│  → Supportive care                                │
│  → May need surgery                               │
└─────────────────────────────────────────────────┘
                    ↓
┌─────────────────────────────────────────────────┐
│         MONITOR & FOLLOW-UP                      │
│  • Symptoms should improve within days           │
│  • If not improving: Reassess, consider endoscopy│
│  • If dysphagia: Urgent endoscopy                │
└─────────────────────────────────────────────────┘

Acute/Emergency Management - The First Hour

Immediate Actions (Do Simultaneously):

  1. Assess Severity

    • Dysphagia: Urgent endoscopy
    • Bleeding: Urgent endoscopy
    • Not responding: Consider endoscopy
  2. Lifestyle Modifications

    • Weight loss: If obese
    • Diet: Avoid triggers
    • Position: Elevate head of bed
    • Timing: Avoid lying down after meals
  3. Start PPI

    • Omeprazole: 20-40mg OD
    • Mechanism: Reduces acid → allows healing
    • Duration: 4-8 weeks
  4. Address Cause

    • If medications: Take with water, stay upright
    • If infection: Identify and treat
    • If other: As appropriate

Medical Management

Proton Pump Inhibitors (First-Line):

DrugDoseRouteDurationNotes
Omeprazole20-40mgOralOD4-8 weeks
Lansoprazole30mgOralOD4-8 weeks
Pantoprazole40mgOralOD4-8 weeks

Mechanism: Reduces stomach acid → reduces reflux → allows healing

H2 Receptor Antagonists (Alternative):

DrugDoseRouteDurationNotes
Ranitidine150mg BD or 300mg ODOral4-8 weeksLess effective than PPI

Antacids (Symptomatic Relief):

  • Gaviscon, Maalox: As needed
  • Mechanism: Neutralizes acid temporarily
  • Note: Don't use as sole treatment

Prokinetics (If Needed):

  • Metoclopramide: 10mg TDS
  • Mechanism: Increases gastric emptying, strengthens sphincter
  • Note: Less commonly used now

Infection Treatment (If Present):

Candida:

  • Fluconazole: 200-400mg OD for 14-21 days
  • Mechanism: Antifungal

CMV:

  • Ganciclovir: IV, specialist use
  • Mechanism: Antiviral

HSV:

  • Aciclovir: IV or oral, specialist use
  • Mechanism: Antiviral

Disposition

Admit to Hospital If:

  • Dysphagia: Needs endoscopy, may need dilation
  • Bleeding: Needs endoscopy
  • Caustic ingestion: Urgent care needed
  • Severe symptoms: Unable to eat/drink

Outpatient Management:

  • Most cases: Can be managed outpatient
  • Regular follow-up: Monitor symptoms, response

Discharge Criteria:

  • Stable: No dysphagia, no bleeding
  • Can take medications: Oral intake OK
  • Clear plan: For treatment, follow-up

Follow-Up:

  • Symptoms: Should improve within days
  • If not improving: Reassess, consider endoscopy
  • Lifestyle: Continue modifications
  • Medications: May need long-term PPI if chronic

8. Complications

Immediate (Days-Weeks)

ComplicationIncidencePresentationManagement
Stricture5-10% (if chronic)DysphagiaEndoscopic dilation
Upper GI bleeding2-5%Hematemesis, melenaEndoscopy, PPI
Barrett's esophagus5-10% (if chronic)MetaplasiaMonitor, may need treatment

Stricture:

  • Mechanism: Chronic inflammation → scarring → narrowing
  • Management: Endoscopic dilation
  • Prevention: Early treatment, prevent chronic

Early (Weeks-Months)

1. Chronic Oesophagitis (20-30%)

  • Mechanism: Incomplete resolution, ongoing reflux
  • Management: Long-term PPI, lifestyle modifications
  • Prevention: Early treatment, lifestyle modifications

2. Barrett's Esophagus (5-10% if chronic)

  • Mechanism: Chronic acid damage → metaplasia
  • Management: Monitor, may need treatment
  • Prevention: Early treatment, prevent chronic

Late (Months-Years)

1. Esophageal Cancer (Rare, but risk with Barrett's)

  • Mechanism: Barrett's → cancer risk
  • Management: Monitor if Barrett's, treat if cancer
  • Prevention: Treat oesophagitis, prevent Barrett's

9. Prognosis & Outcomes

Natural History (Without Treatment)

Untreated Acute Oesophagitis:

  • Most cases: May resolve or become chronic
  • Some cases: Progress to complications (strictures, Barrett's)

Outcomes with Treatment

VariableOutcomeNotes
Recovery70-80%Most recover with treatment
Chronic oesophagitis20-30%If cause not addressed
Complications5-10%Strictures, Barrett's
Mortality<0.1%Very low unless complications

Factors Affecting Outcomes:

Good Prognosis:

  • Early treatment: Better outcomes
  • Lifestyle modifications: Help recovery
  • Cause addressed: Complete recovery
  • Mild cases: Usually resolve completely

Poor Prognosis:

  • Cause not addressed: May become chronic
  • Severe cases: May progress to complications
  • Chronic oesophagitis: Higher risk of complications

Prognostic Factors

FactorImpact on PrognosisEvidence Level
Lifestyle modificationsImproves outcomesHigh
PPI complianceBetter outcomesHigh
SeverityMore severe = worseModerate
ChronicityChronic = higher complication riskModerate

10. Evidence & Guidelines

Key Guidelines

1. NICE Guidelines (2014) — Dyspepsia and gastro-oesophageal reflux disease. National Institute for Health and Care Excellence

Key Recommendations:

  • Clinical diagnosis for mild cases
  • PPI for treatment
  • Lifestyle modifications
  • Evidence Level: 1A

2. ACG Guidelines (2013) — GERD management. American College of Gastroenterology

Key Recommendations:

  • PPI first-line
  • Lifestyle modifications
  • Endoscopy if red flags
  • Evidence Level: 1A

Landmark Trials

Multiple studies on PPI efficacy and GERD management.

Evidence Strength

InterventionLevelKey EvidenceClinical Recommendation
PPI1AMultiple RCTsFirst-line treatment
Lifestyle modifications1BStudiesHelpful adjunct
Endoscopy1BGuidelinesIf red flags or not responding

11. Patient/Layperson Explanation

What is Acute Oesophagitis?

Acute oesophagitis is sudden inflammation of your esophagus (the tube that carries food from your mouth to your stomach). The most common cause is stomach acid flowing backward (reflux), which burns and inflames your esophagus. Think of your esophagus as a pipe with a valve at the bottom—when that valve doesn't work properly, acid flows backward and irritates the pipe.

In simple terms: Your esophagus becomes inflamed, usually from stomach acid flowing backward, causing heartburn and discomfort. Most cases are mild and get better quickly with treatment.

Why does it matter?

Most cases of acute oesophagitis are mild and resolve completely with treatment. However, some can become chronic or cause complications (like narrowing of the esophagus) if not treated. The good news? With proper treatment (medicines to reduce acid and lifestyle changes), most people recover completely within weeks.

Think of it like this: It's like your esophagus getting irritated and inflamed—with the right care, it usually heals quickly.

How is it treated?

1. Lifestyle Changes (Important):

  • Weight loss: If you're overweight (reduces pressure on stomach)
  • Diet: Avoid foods that trigger reflux (spicy, fatty, acidic foods)
  • Position: Elevate the head of your bed (gravity helps)
  • Timing: Don't lie down right after eating
  • Stop smoking: Smoking makes it worse
  • Reduce alcohol: Alcohol can make it worse

2. Acid-Reducing Medicines:

  • PPI medicines: Like omeprazole, reduce stomach acid and help your esophagus heal
  • Duration: Usually 4-8 weeks
  • How to take: Usually once a day, before breakfast

3. Treating the Cause:

  • If it's medications: Take pills with plenty of water, stay upright after taking
  • If it's infection: You'll need specific medicines (antifungals or antivirals)
  • If it's other causes: Treat as appropriate

The goal: Reduce acid, help your esophagus heal, and prevent it happening again.

What to expect

Recovery:

  • Most cases: Start feeling better within days
  • Heartburn: Usually improves within days to weeks
  • Full recovery: Most people are back to normal within 2-4 weeks

After Treatment:

  • Lifestyle: Continue lifestyle changes (they help prevent recurrence)
  • Medications: You may need to take acid-reducing medicines for a few weeks
  • Follow-up: Usually not needed unless symptoms persist

Recovery Time:

  • Mild cases: Usually recover within days to weeks
  • Moderate cases: Usually recover within weeks
  • Severe cases: May take longer, may need more treatment

When to seek help

See your doctor if:

  • You have persistent heartburn or chest pain
  • You have difficulty swallowing
  • You have symptoms that concern you
  • Symptoms don't improve with treatment

Call 999 (or your emergency number) immediately if:

  • You can't swallow (food stuck)
  • You vomit blood
  • You pass black, tarry stools
  • You have severe chest pain
  • You feel very unwell

Remember: If you have persistent heartburn or difficulty swallowing, especially if it's not getting better with over-the-counter medicines, see your doctor. Most cases are easily treated, but some can be more serious and need prompt attention.


12. References

Primary Guidelines

  1. National Institute for Health and Care Excellence. Dyspepsia and gastro-oesophageal reflux disease: investigation and management. NICE guideline [CG184]. 2014.

  2. Katz PO, Gerson LB, Vela MF. Guidelines for the diagnosis and management of gastroesophageal reflux disease. Am J Gastroenterol. 2013;108(3):308-328. PMID: 23419381

Key Trials

  1. Multiple studies on PPI efficacy and GERD management.

Further Resources

  • NICE Guidelines: National Institute for Health and Care Excellence
  • ACG Guidelines: American College of Gastroenterology

Last Reviewed: 2025-12-25 | MedVellum Editorial Team


Medical Disclaimer: MedVellum content is for educational purposes and clinical reference. Clinical decisions should account for individual patient circumstances. Always consult appropriate specialists. This information is not a substitute for professional medical advice, diagnosis, or treatment.

Last updated: 2025-12-25

At a Glance

EvidenceHigh
Last Updated2025-12-25

Red Flags

  • Dysphagia (difficulty swallowing)
  • Odynophagia (painful swallowing)
  • Upper GI bleeding
  • Food impaction
  • Weight loss
  • Chest pain

Clinical Pearls

  • **"Reflux is the most common cause"** — Gastroesophageal reflux (GERD) is the most common cause of oesophagitis. Acid from the stomach burns the esophagus, causing inflammation.
  • **"Infections are rare but important"** — In immunocompromised patients (HIV, chemotherapy), infections (Candida, CMV, HSV) can cause oesophagitis. Always consider in high-risk patients.
  • **"Most oesophagitis responds to PPI"** — Proton pump inhibitors (like omeprazole) are very effective for reflux-related oesophagitis. If not responding, think of other causes.
  • **Red Flags — Immediate Escalation Required:**
  • - **Dysphagia (difficulty swallowing)** — May indicate stricture, needs investigation

Guidelines

  • NICE Guidelines
  • BTS Guidelines
  • RCUK Guidelines