Post-pericardiotomy syndrome (PPS) maybe associated with tamponade and pericardial constriction that may require procedural intervention. We sought to identify clinical features associated with adverse events requiring procedural intervention in patients with PPS. We monitored 239 patients who developed PPS after cardiac surgery for 12 months. PPS was diagnosed if 2 of the 5 following findings were present: fever without infection, pleuritic pain, friction rub, pleural effusion, and/or pericardial effusion (within 60 days post-surgery). Primary endpoint was the development of pericardial effusion or pericardial constriction requiring procedural intervention. Among 239 patients with PPS, 75 (31%) required procedural intervention. In a univariate analysis, the odds of a procedural intervention were decreased with older age (OR 0.98, 95% CI 0.96-0.99) and with colchicine used in combination with anti-inflammatory agents (OR 0.45, 95% CI 0.26-0.79). However, the odds were increased in patients withpreoperative heart failure (OR 1.84, 95% CI 1-3.39) and early postoperative constrictive physiology (OR 5.77, 95% CI 2.62-12.7). After multivariable adjustment, treatment with colchicine along with anti-inflammatory agents was associated with lower odds of requiring intervention (OR 0.43, 95% CI 0.95-0.99). Independent positive predictors of procedural intervention included age (OR 0.97, 95% CI 0.95-0.99), time to PPS (OR 0.97, 95% CI 0.95-0.99), and early postoperative constrictive physiology (OR6.23, 95% CI 2.04-19.07). In conclusion, younger age, early onset PPS, and postoperative constrictive physiology were associated with the need for procedural intervention in patients with PPS; whereas, colchicine was associated with reduced odds of adverse events and procedural intervention.