Robert J Kennedy1, Hai H Kenney, Brian L Dunfee. 1. Department of Interventional Radiology, Holmes Regional Medical Center, Melbourne, FL 32901, USA. rkennedymd@gmail.com
Abstract
PURPOSE: To evaluate retrospectively the safety profile and clinical success of ultrasound-accelerated thrombolysis for acute pulmonary embolism (PE) with a standard lytic infusion protocol. MATERIALS AND METHODS: A retrospective study was performed at a single center treating patients with acute PE between October 2009 and April 2012. On diagnosis of submassive or massive PE by pulmonary computed tomography angiography or ventilation/perfusion scan, all patients received anticoagulation and treatment using the EkoSonic endovascular system (EKOS Corporation, Bothell, Washington). The ultrasound-accelerated thrombolytic infusion catheters were placed into the affected pulmonary arteries to facilitate administration of recombinant tissue plasminogen activator at 0.5-1.0mg/h/catheter. RESULTS: Treatment of 60 patients (35 men, 25 women; age 61 y±16; 53 bilateral PE; 48 submassive PE) resulted in complete thrombus clearance (≥90%) in 57% and near-complete (50%-90%) clearance in 41% of patients after infusion of 35.1 mg±11.1 of recombinant tissue plasminogen activator over 19.6 hours±6.0. Measurements before and after treatment showed a decrease in pulmonary artery pressure (47 mm Hg±15 to 38 mm Hg±12 [systolic], P<.001) and Miller score (25±3 to 17±6, P<.001). There were 57 patients who survived to discharge. All three patients who died in the hospital presented with massive PE. On 90-day follow-up, 56 patients (93%) were alive. CONCLUSIONS: The current study demonstrates effectiveness and safety of ultrasound-accelerated thrombolysis in patients with acute PE with a large thrombus burden.
PURPOSE: To evaluate retrospectively the safety profile and clinical success of ultrasound-accelerated thrombolysis for acute pulmonary embolism (PE) with a standard lytic infusion protocol. MATERIALS AND METHODS: A retrospective study was performed at a single center treating patients with acute PE between October 2009 and April 2012. On diagnosis of submassive or massive PE by pulmonary computed tomography angiography or ventilation/perfusion scan, all patients received anticoagulation and treatment using the EkoSonic endovascular system (EKOS Corporation, Bothell, Washington). The ultrasound-accelerated thrombolytic infusion catheters were placed into the affected pulmonary arteries to facilitate administration of recombinant tissue plasminogen activator at 0.5-1.0mg/h/catheter. RESULTS: Treatment of 60 patients (35 men, 25 women; age 61 y±16; 53 bilateral PE; 48 submassive PE) resulted in complete thrombus clearance (≥90%) in 57% and near-complete (50%-90%) clearance in 41% of patients after infusion of 35.1 mg±11.1 of recombinant tissue plasminogen activator over 19.6 hours±6.0. Measurements before and after treatment showed a decrease in pulmonary artery pressure (47 mm Hg±15 to 38 mm Hg±12 [systolic], P<.001) and Miller score (25±3 to 17±6, P<.001). There were 57 patients who survived to discharge. All three patients who died in the hospital presented with massive PE. On 90-day follow-up, 56 patients (93%) were alive. CONCLUSIONS: The current study demonstrates effectiveness and safety of ultrasound-accelerated thrombolysis in patients with acute PE with a large thrombus burden.
Authors: Nathan L Liang; Rabih A Chaer; Luke K Marone; Michael J Singh; Michel S Makaroun; Efthymios D Avgerinos Journal: Vascular Date: 2016-07-09 Impact factor: 1.285
Authors: Francesco Pelliccia; Michele Schiariti; Claudio Terzano; Abdul M Keylani; Darrin C D'Agostino; Giuseppe Speziale; Cesare Greco; Carlo Gaudio Journal: Biomed Res Int Date: 2014-06-15 Impact factor: 3.411