Atrial and Brain Natriuretic Peptide Secretion After Percutaneous Closure of the Left Atrial Appendage With the Watchman Device.

Abstract

These results suggest that percutaneous closure of the LAA results in an intermittent distribution of the vasoactive hormones ANP and BNP followed by a significant attenuation of ANP and BNP secretion in the early postprocedural period. The clinical impacts of these findings need to be evaluated in further studies.