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Cardiac tamponade or normal respiratory variation? An illustrative case of septal ablation for obstructive hypertrophic cardiomyopathy
Author(s) -
Schwartzenberg Shmuel,
Sorajja Paul
Publication year - 2010
Publication title -
catheterization and cardiovascular interventions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 116
eISSN - 1522-726X
pISSN - 1522-1946
DOI - 10.1002/ccd.22671
Subject(s) - medicine , cardiac tamponade , cardiology , tamponade , cardiac catheterization , hypertrophic cardiomyopathy , hemodynamics , alcohol septal ablation , stroke volume , complication , cardiac output , ventricular outflow tract , cardiomyopathy , ventricular outflow tract obstruction , obstructive cardiomyopathy , blood pressure , heart rate , heart failure
Cardiac tamponade can be a lethal complication in the cardiac catheterization laboratory. Patients with obstructive hypertrophic cardiomyopathy are particularly vulnerable to the hemodynamic effects of tamponade because of their heightened sensitivity to ventricular load in the generation of forward stroke volume. Cardiac tamponade should be distinguished from the normal effects of respiration on dynamic outflow tract obstruction in these patients. This recognition not only ensures an accurate hemodynamic diagnosis, but it also will expedite timely therapy for patients in need. © 2010 Wiley‐Liss, Inc.