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  • Title: Impact of different values of prosthesis-patient mismatch on outcome in male patients with aortic valve replacement.
    Author: Mannacio VA, Mannacio L, Antignano A, Pinna GB, Giordano R, Mottola M, Iannelli G.
    Journal: J Cardiovasc Med (Hagerstown); 2017 May; 18(5):366-373. PubMed ID: 28212136.
    Abstract:
    AIMS: Mortality and left ventricular mass (LVM) recovery/regression after aortic valve replacement in patients with prosthesis-patient mismatch (PPM) is controversial. This study evaluated the impact of different values of indexed effective orifice area (EOAi) in male patients on mortality and indexed LVM (ILVM) recovery/regression. METHOD: The study recruited 376 male patients with and without PPM after aortic valve replacement with different EOAi cut-off values. RESULTS: At EOAi 0.85 cm/m or less, 295 patients had PPM (78.5%). ILVM recovery occurred in 60.5% of no-PPM patients versus 46.1% of patients with PPM (P = 0.003), and ILVM regression was 35 versus 25% (P < 0.001). Time for ILVM regression was shorter in no-PPM group. At EOAi 0.75 cm/m or less, 201 patients had PPM (53.4%). ILVM recovery occurred in 55.4% of no-PPM patients versus 45.2% of patients with PPM (P = 0.06), regression was 32 versus 29% (P = 0.09). Time for ILVM regression was similar between groups. Regardless the cut-off value for PPM definition, mortality was similar. CONCLUSION: LVM recovery/regression, but not mortality, was different at different EOAi. The cut-off value at EOAi 0.75 cm/m or less guaranteed a more balanced patient distribution between groups and the best compromise between specificity and sensitivity.
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