Surgical pulmonary embolectomy: Mid-term outcomes

Abstract

Background: Despite the widespread use of venous thromboembolism (VTE) prophylaxis in hospitalized patients, pulmonary embolism continues to occur. Massive pulmonary embolism is associated with a high mortality. Surgical embolectomy has traditionally been reserved for cases with haemodynamic collapse or where thrombolysis is contraindicated or has failed. Methods: Data on 10 patients who underwent surgical embolectomy (40% male, mean age 49 years (range 25-72)) from January 2003 to February 2010 were prospectively collected and retrospectively analysed. Results: Diagnosis was made using computed tomography pulmonary angiography in eight patients and echocardiography in two. Syncope was the most common presenting symptom (7 out of 10, 70%) and relative immobilization was the most common risk factor (7 out of 10, 70%). Four patients (40%) suffered preoperative cardiac arrest, with a further two on induction of anaesthesia. Thirty-day mortality was 4 out of 10 (40%), with one late death. Mean follow-up of five survivors was 39 months and included clinic review or telephone interview, SF-36 questionnaire for quality of life, transthoracic echocardiography for right ventricular (RV) function and respiratory function testing. All survivors received an inferior vena cava filter and 6 months of anticoagulation with no cases of recurrent thromboembolism. RV systolic dysfunction was severe in all cases prior to surgery, but improved to near normal at follow-up. Conclusions: Survivors had good quality of life, were functionally NYHA class I-II with normal respiratory function. © 2012 The Authors. ANZ Journal of Surgery © 2012 Royal Australasian College of Surgeons.