Left ventricular muscle mass regression after aortic valve replacement
Journal of Korean Medical Science
;
: 511-519, 1999.
Article
in English
| WPRIM
| ID: wpr-187368
ABSTRACT
Implanting a valve that will reduce left ventricular mass is critical in aortic stenosis. Regression of left ventricular hypertrophy in 46 aortic valve replacement (AVR) patients receiving a St. Jude Medical (SJM) valve was assessed by serial electrocardiographic and echocardiographic studies during the preoperative, immediate, and late postoperative periods. The patients were divided into three groups according to valve size; 19 mm group (n=9), 21 mm group (n=20), and 23+mm group (n=17). There was no surgical mortality. The NYHA functional class improved from an average of 2.2+/-0.8 preoperatively to 1.3+/-0.5 post-operatively. Left ventricular muscle mass index (LVMI) regression failed to reach statistical significance in the 19 mm group, whereas in the other two groups a steady decrease in the LVMI occurred with follow up. ECG findings were less remarkable showing insignificant differences in voltage among the three groups (p=0.000). In conclusion, the current data suggest that the 19 mm SJM valve may not result in satisfactory left ventricular muscle mass regression despite adequate function, even in small patients. Therefore, additional procedures to accommodate a larger valve may be warranted in the aortic annulus smaller than 21 mm.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Aortic Valve
/
Aortic Valve Stenosis
/
Postoperative Period
/
Remission Induction
/
Heart Valve Prosthesis
/
Echocardiography
/
Multivariate Analysis
/
Risk Factors
/
Follow-Up Studies
/
Treatment Outcome
Type of study:
Etiology study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
Language:
English
Journal:
Journal of Korean Medical Science
Year:
1999
Type:
Article
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