Lessons learned on a new procedure: Non-Sternotomy Minimally Invasive Pulmonary Embolectomy

Abstract

Since publication of our initial experience with non-sternotomy minimally invasive pulmonary embolectomy (MIPE) via a left mini thoracotomy, we have expanded our experience, refined the operation and streamlined the post-operative management of patients. Our initial publication described three patients who underwent MIPE.1 We described our technique which included peripheral cardiopulmonary bypass (CPB) via femoral arterial and venous cannulation, left sided 5cm anterior thoracotomy in the 3rd intercostal space, identification and incision of the main pulmonary artery distal to the pulmonic valve, extraction of clot with subsequent primary closure of the pulmonary artery, and use of a 5mm, 30 degree laparoscope as an adjunct to assess clearance of the pulmonary artery.2 The patients included in this series had no post-operative complications, had a mean hospital length of stay of three days with mid-term follow-up up to 8-months revealing no untoward complications of the procedure. With early success of the MIPE at our institution, we began employing it preferentially over sternotomy with central CPB and pulmonary embolectomy. Since initial publication of our results, we have performed the MIPE in two additional patients with excellent outcomes. We herein present augmentations we've made to the procedure with a case-presentation which highlights these adaptations.