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[A case of successful pulmonary embolectomy for massive acute pulmonary thromboembolism].

A 54-year-old man was admitted to our hospital complaining of sudden-onset dyspnea in shock. Chest computed tomography(CT) showed thrombi in the right main and left intermediate pulmonary arteries. The case was diagnosed as a massive acute pulmonary thromboembolism. Although his hemodynamic status was stable after catecholamine infusion, his dyspnea was still in progress. Emergency pulmonary embolectomy was performed and the life of patient was saved. It is thought that progressive dyspnea is an important sign of a deteriorating hemodynamic status and the predictive symptom indicating a surgical procedure in patients with massive acute pulmonary thromboembolism.