患者,男,35岁。因阵发性心悸1d入院。发作无明显诱因,呈突发性。伴头昏、面色苍白、咳嗽、痰中带血、呼吸困难。发作持续5h来我院门诊,经静脉推注异搏定后病情缓解。病前无畏寒发热、咳嗽,无腹痛、腹泻史。既往无高血压、糖尿病史。其父患高血压。吸烟20支/d,10年。少量饮酒。? Patient, male, 35 years old. Due to paroxysmal palpitations 1d admission. No obvious cause of the attack, was sudden. With dizziness, pale, cough, bloody sputum, difficulty breathing. Episodes continued to 5h outpatient clinic, intravenous injection of verapamil after the disease was relieved. Fear without chills fever, cough, no abdominal pain, history of diarrhea. No previous history of hypertension and diabetes. His father is suffering from high blood pressure. Smoking 20 / d, 10 years. A small amount of alcohol. ?