Dyspepsia 

1. Definition 

Dyspepsia = Chronic or recurrent pain or discomfort centered in the upper abdomen (epigastrium).

It includes one or more of:

  • Epigastric pain
  • Epigastric burning
  • Early satiety
  • Postprandial fullness
  • Bloating
  • Nausea
    Heartburn alone = GORD, not dyspepsia (though overlap is common).

Differentiating Dyspepsia vs GERD 

Feature

Dyspepsia

GORD

Main symptom

Epigastric pain

Heartburn

Worse lying flat

No

Yes

Acid regurgitation

Rare

Common

Endoscopy

Often normal

Esophagitis possible

2. Pathophysiology

Dyspepsia may be:

A. Organic (structural cause)

  • Peptic ulcer disease
  • Malignancy
  • Pancreatic disease
  • Biliary disease
  • Drug-induced

B. Functional (most common)

 Functional Dyspepsia (FD)

Defined by Rome IV Criteria

Requires:

  • ≥1 symptom:
    • Postprandial fullness
    • Early satiety
    • Epigastric pain
    • Epigastric burning
  • No structural disease on endoscopy
  • Symptoms ≥3 months, onset ≥6 months before diagnosis

Subtypes:

  1. Postprandial distress syndrome (PDS)
  2. Epigastric pain syndrome (EPS)

 Functional Dyspepsia vs IBS 

Feature

Functional Dyspepsia

IBS

Pain location

Epigastrium

Lower abdomen

Bowel change

No

Yes

Bloating

Common

Very common

Relief after defecation

No

Yes


3. Causes of Dyspepsia 

— Gastric Causes

  • Peptic Ulcer Disease
  • Gastritis
  • Gastric carcinoma
  • Lymphoma

— Infection

  • Helicobacter pylori

Drug-Induced

  • NSAIDs
  • Steroids
  • Bisphosphonates
  • Iron
  • Metformin

— Reflux Disease

  • Gastroesophageal Reflux Disease

Pancreatic

  • Chronic pancreatitis
  • Pancreatic carcinoma

— Biliary

  • Gallstones
  • Biliary colic

— Malignancy Red Flags

  • Gastric cancer
  • Pancreatic cancer


4.Alarm Features 

Immediate endoscopy if:

  • Age ≥55 (UK NICE cutoff; may vary regionally)
  • Unintentional weight loss
  • Dysphagia
  • Persistent vomiting
  • GI bleeding
  • Iron deficiency anemia
  • Epigastric mass
  • Family history of upper GI cancer


5. Clinical Assessment

History

Ask about:

  • Relation to meals
  • NSAID use
  • Weight loss
  • Vomiting
  • Dysphagia
  • Alcohol
  • Smoking

Pain Patterns

Feature

Suggests

Relieved by food

Duodenal ulcer

Worse with food

Gastric ulcer

Radiation to back

Pancreas

RUQ colicky

Biliary


6. Investigation Strateg

Stepwise Approach (NICE-based)

# Age <55, No Alarm Features

Test and treat for H. pylori

Tests:

  • Urea breath test (best)
  • Stool antigen
  • Serology (not preferred)


# Age ≥55 OR Alarm Features

Urgent OGD (endoscopy)


Endoscopy Findings

Finding

Diagnosis

Clean ulcer

PUD

Erosions

Gastritis

Normal

Functional dyspepsia

Mass lesion

Malignancy


7. Management 

A. Lifestyle 

  • Weight reduction
  • Stop smoking
  • Reduce alcohol
  • Avoid NSAIDs
  • Small frequent meals
  • Avoid trigger foods


B. H. pylori Eradication

Triple therapy (14 days):

  • PPI
  • Amoxicillin
  • Clarithromycin

OR metronidazole if penicillin allergy

Confirm eradication after 4 weeks.


C. Acid Suppression

First line:PPI for 4–8 weeks

If relapse:

  • Long-term lowest effective dose


D. Functional Dyspepsia Management

  1. PPI trial
  2. H. pylori eradication if positive
  3. Prokinetics (limited use)
  4. Low-dose TCA (e.g., amitriptyline)
  5. Psychological therapy if refractory


8. Complications of Untreated Organic Dyspepsia

  • GI bleeding
  • Perforation
  • Gastric outlet obstruction
  • Malignancy progression


9. Specia Scenarios

# NSAID User

Stop NSAID + PPI
Test for H. pylori

# Elderly New-Onset Dyspepsia

Always scope

# Persistent Symptoms After PPI

  • Check compliance
  • Test H. pylori
  • Consider functional dyspepsia
  • Consider biliary or pancreatic cause


10. Causes of Epigastric Pain

Cause

Key Feature

Investigation

PUD

Food-related

OGD

Gastritis

NSAID history

OGD

Pancreatitis

Back radiation

Lipase

Gallstones

RUQ pain

USG

Functional

Normal tests

Diagnosis of exclusion