Mallory-Weiss Tear

Gastroenterology

Overview

Definition

A non-transmural, mucosal laceration at the gastroesophageal junction, typically presenting with hematemesis after repeated retching.

Epidemiology

Accounts for 5-10% of cases of upper gastrointestinal bleeding. Highly associated with alcohol abuse.

Etiology & Risk Factors

  • Sudden increase in intra-abdominal pressure causing mucosal tearing at the GE junction during severe vomiting or retching

Clinical Symptoms

  • Acute-onset hematemesis (vomiting blood) following episodes of non-bloody vomiting
  • Epigastric pain

Clinical Approach

Diagnosis

  • Upper endoscopy (EGD) showing a longitudinal mucosal tear at or just below the Z-line

Management

  • Supportive care (most bleedings stop spontaneously)
  • Endoscopic therapy (epinephrine injection, hemoclips, thermal coagulation) if active bleeding
  • Acid suppression (IV PPI)

Complications

  • Severe hemorrhage requiring transfusion
  • Myocardial ischemia (from acute blood loss)
  • Esophageal perforation (rare)