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  • Title: Assessing the utility of pre-operative first pass radionuclide angiography to predict right ventricular failure post left ventricular assist device implantation.
    Author: Patel VN, Tam MC, Palardy M, Konerman MC, Murthy VL.
    Journal: J Nucl Cardiol; 2021 Feb; 28(1):303-308. PubMed ID: 31549290.
    Abstract:
    INTRODUCTION: Right ventricular failure (RVF) after left ventricular assist device (LVAD) placement is associated with worse outcomes. We hypothesized that decreased right ventricular (RV) ejection fraction (EF) as well as qualitative assessments of RV function and dilation, as assessed by first pass radionuclide angiography (FPRNA), are associated with an increased risk of RVF following LVAD implantation. METHODS: We retrospectively identified 46 patients from 1/2008 to 11/2017 that underwent FPRNA and LVAD implantation. RVF was defined as requiring inotropes for greater than 14 days after LVAD implantation or requiring a right ventricular assist device. FPRNA-derived variables of RV performance and structure were compared between those that did and did not have RVF post implant. Statistical analyses were performed with Mann-Whitney U tests for ordinal and continuous variables. Fisher's exact tests and Pearson's χ2 tests were used for categorical variables. RESULTS: Eight patients developed RVF after device implantation. The average RV EF on FPRNA was 41.45% in those that did not develop RVF and 40.13% in those that did (P = 0.787). RV dilation (P = 0.896) and global RV function (P = 0.827) by FPRNA were not statistically different between the two groups. CONCLUSION: In patients that required FPRNA for further assessment of RV function prior to LVAD implantation, decreased RV EF, RV dilation and global RV function on FPRNA were not associated with an increased risk of RVF.
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