Acute Pericarditis Diffuse ST Elevation PR Depression
medium
stethoscope Medicine
A 32-year-old man presents to the emergency department with 3 days of sharp, retrosternal chest pain that worsens with inspiration and when lying supine, but improves when sitting forward. On examination, a high-pitched triphasic scratching sound is heard at the left lower sternal border. A 12-lead ECG is obtained and shows the pattern marked **A** in the diagram. Which of the following is the MOST appropriate initial management for this patient?
A. High-dose NSAID (ibuprofen 600–800 mg every 8 hours) combined with colchicine 0.5 mg twice daily for 3 months, plus gastric protection
B. Corticosteroids (prednisone 0.5 mg/kg/day) as first-line therapy to prevent recurrence
C. Bed rest alone with observation; NSAIDs only if symptoms persist beyond 2 weeks
D. Immediate pericardiocentesis followed by empiric broad-spectrum antibiotics
Explanation
Why High-dose NSAID + colchicine is right
The clinical presentation—sharp, pleuritic, retrosternal chest pain worse with inspiration and supine position, improved by sitting forward, accompanied by a pericardial friction rub and the characteristic ECG pattern of diffuse concave ST elevation with PR depression (marked A)—is diagnostic of acute pericarditis. According to ESC 2015 guidelines, the first-line management for idiopathic/viral acute pericarditis is combination therapy: high-dose NSAID (ibuprofen 600–800 mg every 8 hours or aspirin 750–1000 mg every 8 hours) continued until symptom resolution and CRP normalization (typically 1–2 weeks), PLUS colchicine 0.5 mg twice daily for 3 months. Colchicine is a Class I recommendation because it halves the rate of recurrence (COPE and ICAP trials). Gastric protection with a PPI is mandatory during high-dose NSAID therapy.
Why each distractor is wrong
Immediate pericardiocentesis followed by antibiotics: Pericardiocentesis is reserved for hemodynamic compromise (tamponade) or suspected purulent pericarditis (fever >38°C, subacute onset, immunocompromised status). This patient has no red flags for tamponade or infection; pericardiocentesis is not indicated and would delay appropriate medical therapy.
Corticosteroids as first-line: Corticosteroids are explicitly avoided for first-episode idiopathic pericarditis because they are associated with HIGHER recurrence rates. They are reserved for NSAID failure, contraindications, or specific etiologies (autoimmune, uremic, pregnancy after first trimester).
Bed rest alone with observation; NSAIDs only if symptoms persist: This approach delays evidence-based therapy. NSAIDs should be started immediately at high dose, not withheld. Colchicine must be initiated concurrently to prevent recurrence.
High-YieldNEET PG
Acute pericarditis = diffuse concave ST elevation + PR depression + pericardial friction rub + pleuritic chest pain relieved by sitting forward. First-line = NSAID + colchicine × 3 months. Colchicine halves recurrence. Avoid steroids in first episode.
ESC Pericardial Diseases Guidelines 2015
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