Successful management of acute pulmonary embolism after surgery for lung cancer.

ABSTRACT

OBJECTIVE: Although many case reports of acute pulmonary embolism (APE) have been published, the literature dealing with the management of APE after resection of lung cancer is limited. This report describes seven cases of successful management of APE after surgery for lung cancer and discusses how to manage this problematic complication. METHODS: The medical charts of seven patients with APE after lobectomy and complete mediastinal lymphnode dissection were retrospectively reviewed. RESULTS: Six patients collapsed during their first attempt at walking after surgery in conjunction with a dramatic respiratory change. All these patients promptly underwent enhanced spiral computed tomography (CT) scanning. Bilateral clots were detected in all patients and one patient with a deep venous thrombus (DVT) in the femoral vein had a temporary inferior vena cava filter implanted. Non-surgical therapy was used for six patients thrombolysis (systemic urokinase) and anticoagulant (heparin or argatroban) for four patients and only anticoagulant therapy started on the day after the operation using argatroban for two. There were no bleeding problems with these thrombolysis and/or anticoagulant therapies except in one case of hemorrhage induced by heparin usage on the day after the operation. None of the cases required allotransfusion in connection with these therapies. Thromboembolectomy was performed for one patient who was hemodynamically unstable due to massive embolism and primary atrial fibrillation. All patients were discharged from our hospital without major complications. CONCLUSIONS: Patients with pulmonary embolism after surgery for lung cancer can be treated aggressively with anticoagulants with/without fibrinolitics or even with pulmonary embolectomy on cardiopulmonary bypass, without excessive risk of bleeding complications. Enhanced spiral CT scanning was very helpful for making a simultaneous diagnosis of APE and DVT. The use of argatroban in conjunction with activated clotting time monitoring should be effective without causing bleeding problems during the early stages after pulmonary resection for lung cancer.