Management of Acid Ingestion (Caustic Injury)
For acute acid ingestion, immediately contact Poison Control, avoid inducing vomiting or neutralization attempts, and perform urgent esophagogastroduodenoscopy (EGD) within 12-24 hours to assess injury severity and guide management. 1
Immediate Assessment and Stabilization
Critical initial steps:
Identify the specific acid ingested, physical form (liquid vs solid), quantity consumed, and whether ingestion was intentional or accidental, as these factors determine injury severity 1
Contact Poison Control Centers immediately to evaluate potential systemic toxicity of the ingested agent 1
Obtain initial laboratory evaluation including renal function tests (urea and creatinine) to assess injury severity 1
Perform β-HCG in women of childbearing age to rule out pregnancy 1
Critical pitfall: Do NOT induce vomiting, attempt neutralization with alkaline substances, or administer activated charcoal—these interventions can worsen tissue injury 1
Diagnostic Evaluation
EGD is the gold standard for determining presence and severity of corrosive esophageal and gastric lesions and should be performed urgently (within 12-24 hours of ingestion). 1
Laboratory abnormalities including deranged liver function tests and elevated CRP may indicate transmural necrosis and need for surgical intervention 1
Strong acids can induce extensive necrosis of the gastrointestinal tract, particularly with massive ingestion 1
Treatment Approach Based on Injury Severity
For Mild to Moderate Injuries (No Perforation):
Initiate aggressive acid suppression with proton pump inhibitors (PPIs), optimizing timing of dose and considering dose escalation if needed 1
Consider switching to a different PPI if response is inadequate 1
Add H2-receptor antagonists for nocturnal symptoms as adjunctive therapy 1
For Severe Injuries:
Patients with severe injuries require indefinite long-term PPI therapy similar to severe GERD management 1
Surgical intervention is required for esophageal or gastric perforation 1
Consider early surgical consultation for patients with evidence of transmural necrosis (elevated CRP, deranged liver function tests) 1
Long-Term Management
For patients who survive the acute injury and develop chronic strictures or GERD-like symptoms: