Impact of the indexed effective orifice area on mid-term cardiac-related mortality after aortic valve replacement
- Bleiziffer, Sabine
- Ali, Ayyaz
- Hettich, Ina M.
- Akdere, Deniz
- Laubender, Rüdiger P.
- Ruzicka, Daniel
- Boehm, Johannes
- Lange, Ruediger
- Eichinger, Walter
DOIAbstract
Background There has been ongoing controversy as to whether prosthesis-patient mismatch (PPM, defined as indexed effective orifice area (EOAI) <0.85 m(2)/cm(2)) influences mortality after aortic valve replacement (AVR). In most studies, PPM is anticipated by reference tables based on mean EOAs as opposed to individual assessment. These reference values may not reflect the actual in vivo EOAI and hence, the presence or absence of PPM may be based on false assumptions. Objective To assess the impact of small prosthesis EOA on survival after aortic valve replacement AVR. Methods 645 patients had undergone an AVR between 2000 and 2007 entered the study. All patients underwent transthoracic echocardiography for determination of the actual EOAI w...
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