Minimally invasive CentriMag ventricular assist device support integrated with extracorporeal membrane oxygenation in cardiogenic shock patients: a comparison with conventional CentriMag biventricular support configuration

Koji Takeda, Arthur R Garan, Masahiko Ando, Jiho Han, Veli K Topkara, Paul Kurlansky, Melana Yuzefpolskaya, Maryjane A Farr, Paolo C Colombo, Yoshifumi Naka, Hiroo Takayama
European Journal of Cardio-thoracic Surgery 2017 December 1, 52 (6): 1055-1061

OBJECTIVES: We recently developed a novel minimally invasive surgical approach that combines extracorporeal membrane oxygenation and CentriMag ventricular assist device (Ec-VAD) for the treatment of cardiogenic shock as a short-term circulatory support. We compared the outcomes of this new approach to conventional CentriMag biventricular assist device (BiVAD) support through a median sternotomy.

METHODS: Between July 2015 and August 2016, 22 patients were implanted with CentriMag Ec-VAD and 90 patients were implanted with conventional CentriMag BiVAD. The Ec-VAD circuit was configured with left ventricular apical cannulation via a mini-thoracotomy and femoral venous cannulation as inflows and right axillary artery cannulation as an outflow.

RESULTS: Patients with Ec-VAD were older (58 ± 9.9 vs 53 ± 13 years, P = 0.06), had more preoperative percutaneous mechanical circulatory support use (82% vs 44%, P < 0.01) and less cardiopulmonary bypass use intraoperatively (0% vs 66%, P < 0.01). Patients who received Ec-VAD required less transfusions. The Ec-VAD group had a significantly lower incidence of major bleeding events during support (32% vs 72%, P < 0.01). Average systemic flow was similar (Ec-VAD: 5.5 ± 0.94 vs BiVAD: 5.7 ± 1.1 l/min, P = 0.4). Seventeen patients (77%) with Ec-VAD survived to the next destination compared with 66 patients (73%) with BiVAD (P = 0.45). Thirty-day survival was similar between groups (Ec-VAD 86% vs BiVAD 76%, P = 0.39), and overall 1-year survival was 61% in Ec-VAD and 55% in BiVAD (P = 0.7).

CONCLUSIONS: Ec-VAD is a unique approach for the treatment of patients in cardiogenic shock. It eliminates the need for cardiopulmonary bypass and reduces blood product utilization and bleeding events.

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Dr Arooj Zahid

Plz display its full text.


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