Diastolic blood pressure predicts outcomes after aortic paravalvular leak closure
- 7 April 2020
- journal article
- research article
- Published by Wiley in Catheterization and Cardiovascular Interventions
- Vol. 97 (1), E79-E87
- https://doi.org/10.1002/ccd.28890
Abstract
Objectives We sought to determine hemodynamic effects of aortic paravalvular leak (PVL) and predictors of clinical outcomes after aortic PVL closure. Background The significance of hemodynamic alterations in PVL and relation to severity, procedural success of percutaneous closure and clinical outcomes have not been defined. Methods Patients undergoing percutaneous PVL closure between July 21, 2004 and September 10, 2018 were included. PVL severity was assessed by echocardiography and aortic angiography. Hemodynamics were assessed by intra‐arterial pressure tracings before and after PVL closure. The primary outcome was a composite of mortality, redo aortic valve replacement (AVR) and redo PVL closure. Results One hundred and seventeen patients (mean age 70.3 ± 14.9 years, 79% surgical and 21% transcatheter prostheses) underwent PVL closure with 94% technical success. PVL was moderate or greater in 106 (91%) at baseline and 11 (11%) post‐procedure. Diastolic BP for those with moderate or greater PVL was lower than for those with less PVL (50.3 ± 11.7 vs. 56.5 ± 12.4 mmHg, p < .001). Pulse pressure was similar between these groups (69.9 ± 20.3 vs. 67.4 ± 21.2 mmHg, p = .39). 35 patients (34%) had 40 events during a mean follow‐up of 1.6 ± 1.9 years (23 deaths, 12 redo AVR, and five redo PVL closures). In a multivariate model, final diastolic BP p = .007) was a significant predictor of the composite endpoint. Conclusions Diastolic BP was significantly associated with aortic PVL severity and clinical outcomes after PVL closure. In contrast, pulse pressure did not correlate with PVL severity or outcomes. These findings have implications for clinical management of patients with aortic PVL.Keywords
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