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- W3048248263 abstract "Significant residual mitral regurgitation (MR) after left ventricular assist device (LVAD) implantation has been associated with increased morbidity and mortality. The effect of cannula position on improvement of preexisting MR has yet to be evaluated. Consecutive patients who underwent centrifugal LVAD implantation with >mild preoperative MR and without concomitant mitral repair were reviewed. Left ventricular assist device position was determined by the angle between actual and ideal inflow cannula on computed tomography. The magnitudes of angles (anterior and lateral angle) were added to form an LVAD position assessment (LVADpa). Mitral regurgitation was numerically classified, and improvement in MR was determined by difference in MR preoperatively to MR >1 month postoperatively with a median of 162 (interquartile range: 78–218) days. The primary analysis examined the relationship between LVADpa and postoperative MR. Forty-one patients were identified with >mild preoperative functional MR. Mean age was 51 ± 13 years with an ejection fraction of 16 ± 4%. Overall, MR improved from moderate-severe preoperatively to mild postoperatively (p < 0.001). On multivariable analysis, higher LVADpa deviation was associated with greater postoperative MR (odds ratio [OR] = 2.29, p = 0.005) and higher 1-month pulsatility index was associated with lower postoperative MR (OR = 0.47, p = 0.011). Inflow cannula position during centrifugal LVAD implantation is an important determinant of postoperative MR." @default.
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- W3048248263 date "2020-07-28" @default.
- W3048248263 modified "2023-09-25" @default.
- W3048248263 title "Inflow Cannula Position Influences Improvement in Mitral Regurgitation After Ventricular Assist Device Implantation" @default.
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- W3048248263 doi "https://doi.org/10.1097/mat.0000000000001248" @default.
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