Mid-systolic septal deceleration. A new sign of left ventricular outflow tract obstruction obtained by color-coded tissue Doppler echocardiography.
Hypertrophic obstructive cardiomyopathy (HOCM) is characterized by the presence of a dynamic left ventricular outflow tract gradient. We studied septal longitudinal motion by color coded tissue Doppler echocardiography in a 69-year old HOCM patient during and after catheter based treatment by trans coronary alcohol ablation of septal hypertrophy. The presence of dynamic left ventricular outflow tract obstruction was associated with a characteristic abrupt mid-systolic septal deceleration pattern in the tissue Doppler velocity trace. Five weeks after treatment, this pattern was no longer visible at rest.
Breithardt
O A
OA
Medizinische Klinik I, Universität-Klinikum Aachen, Pauwelsstrasse 30, 52057 Aachen, Germany. olebreithardt@gmx.de
Stolle
B
B
Franke
A
A
Janssens
U
U
Hanrath
P
P
Kuhn
H
H
D000368:Aged; D006328:Cardiac Catheterization; D002312:Cardiomyopathy, Hypertrophic / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000628:therapy; D018618:Echocardiography, Doppler, Color; D004562:Electrocardiography; D000431:Ethanol / Q000008:administration & dosage; D005500:Follow-Up Studies; D006339:Heart Rate / Q000502:physiology*; D006346:Heart Septum / Q000187:drug effects / Q000503:physiopathology*; D006801:Humans; D008297:Male; D013599:Systole / Q000502:physiology*; D016896:Treatment Outcome; D014694:Ventricular Outflow Obstruction / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000628:therapy
D000431:Ethanol