Comparison of left ventricular geometry after HeartMate II and HeartWare left ventricular assist device implantation

Journal of Cardiothoracic Surgery

Toufan Bahrami²  Mohamed Amrani²  Andre Ruediger Simon²  Aron Frederik Popov¹  Morteza Tavakkoli Hosseini² 

[1] Department of Thoracic Cardiovascular Surgery, University of Göttingen, Göttingen, Germany;Department of Cardiothoracic Surgery and Transplantation Harefield Hospital, Harefield, London, UK

关键词: Echocardiography;    Ventricular assist device;    Heart failure;    Cardiomyopathy;   

Others  :  828696
DOI  :  10.1186/1749-8090-8-31

 received in 2012-09-27, accepted in 2013-02-22,  发布年份 2013

【 摘 要 】

Background

HeartMate II (HM II) and HeartWare (HW) Left Ventricular Assist Devices have been successfully used in end-stage heart failure patients as a bridge to transplantation, recovery, or decision. We set out to compare their effect in off-loading the left ventricle and its geometry.

Methods

The left ventricular end diastolic (LVEDD) and end systolic (LVESD) diameters were compared between first time HM II (n = 25) and HW implantations (n = 24) before and after the operation at 1, 3, and 6 months. A p value of less than 0.05 was considered as significant.

Results

Post-operative LVEDD and LVESD at 1, 3, and 6 months were significantly reduced in comparison with pre-operative values in both HM II and HW groups. No significant difference was found comparing HM II and HW groups together before and after the operation.

Conclusions

Our study shows that both HM II and HW can significantly reduce the left ventricular systolic and diastolic dimensions and off-load the left ventricle. The miniaturized nature of HW does not affect its performance and it could be as effective as HM II.

【 授权许可】

   
2013 Hosseini et al; licensee BioMed Central Ltd.

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