» Articles » PMID: 26362052

Left Ventricular Outflow Tract Obstruction Masked by Severe Aortic Stenosis

Overview
Date 2015 Sep 13
PMID 26362052
Citations 2
Authors
Affiliations
Soon will be listed here.
Abstract

An 81-year-old woman developed severe hemolytic anemia after aortic valve replacement. The anemia was not caused by paravalvular leakage, as in most cases. Instead, it occurred secondary to left ventricular outflow tract obstruction that had not been seen preoperatively and was induced by afterload reduction following aortic valve replacement. The hemolytic anemia was drug-refractory and finally treated with dual-chamber pacing, as for hypertrophic cardiomyopathy.

Citing Articles

Case Report: Mechanical hemolysis resulting from left ventricular outflow tract obstruction after aortic valve replacement relieved by transapical beating-heart septal myectomy.

Kang Q, Tian J, Zhu Y, Zhou W, Wei X, Liu Y Front Cardiovasc Med. 2024; 11:1410222.

PMID: 39055661 PMC: 11269188. DOI: 10.3389/fcvm.2024.1410222.


Evaluation and Management of Concomitant Hypertrophic Obstructive Cardiomyopathy and Valvular Aortic Stenosis.

Shenouda J, Silber D, Subramaniam M, Alkhatib B, Schwartz R, Goncalves J Curr Treat Options Cardiovasc Med. 2016; 18(3):17.

PMID: 26874705 DOI: 10.1007/s11936-016-0440-3.

References
1.
Bach D . Subvalvular left ventricular outflow obstruction for patients undergoing aortic valve replacement for aortic stenosis: echocardiographic recognition and identification of patients at risk. J Am Soc Echocardiogr. 2005; 18(11):1155-62. DOI: 10.1016/j.echo.2005.08.005. View

2.
Kubo T, Kitaoka H, Terauchi Y, Tamura S, Okawa M, Yamasaki N . Hemolytic anemia in a patient with hypertrophic obstructive cardiomyopathy. J Cardiol. 2010; 55(1):125-9. DOI: 10.1016/j.jjcc.2009.03.013. View

3.
Moreno J, Garcia Calvo I, Morales J, Palomo Bravo A . Severe hemolytic anemia in hypertrophic cardiomyopathy. Am Heart J. 1992; 124(4):1082-3. DOI: 10.1016/0002-8703(92)90998-b. View

4.
Bartunek J, Sys S, Rodrigues A, Van Schuerbeeck E, Mortier L, de Bruyne B . Abnormal systolic intraventricular flow velocities after valve replacement for aortic stenosis. Mechanisms, predictive factors, and prognostic significance. Circulation. 1996; 93(4):712-9. DOI: 10.1161/01.cir.93.4.712. View

5.
Aurigemma G, Battista S, Orsinelli D, Sweeney A, Pape L, Cuenoud H . Abnormal left ventricular intracavitary flow acceleration in patients undergoing aortic valve replacement for aortic stenosis. A marker for high postoperative morbidity and mortality. Circulation. 1992; 86(3):926-36. DOI: 10.1161/01.cir.86.3.926. View