system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The most commonest cause of acute cor pulmonale is
assistant
The correct answer is  Ref Harrison 19 th ed pg 1454 ,1505 The most commonest cause of acute cor pulmonale is pulmonary thromboembolism. The most common cause of chronic cor pulmonale is COPD.