[Conventional and color Doppler echocardiography in mitral balloon valvotomy].
With the aim of assessing the value of conventional echocardiography and Doppler and colour Doppler during and in the follow-up of percutaneous mitral valvotomy we have studied prospectively 100 consecutive patients with 1 (90%), 6 (69%) and 12 (53%) months follow-up. Age was 50 years and 80% were women. The single balloon technique was used in 68%, mitral valve area increased from 0.9 +/- 0.2 to 1.8 +/- 0.3 cm2 and decrease in pulmonary artery pressure was 10 +/- 0.05 mmHg. We found that: 1) percutaneous mitral valvotomy produced and acute and transient decrease in left ventricular ejection fraction (pre 69 +/- 9%, post 61 +/- 10% p less than 0.001; 1 month 70 +/- 10; 2) a severe mitral regurgitation appeared in 4% of patients and 17% of patients had a moderate degree of regurgitation after valvotomy; 3) after valvular dilation an increase in the width of the aliasing greater than 29% predicted a successful procedure (final area greater than 1.5 cm2) with a sensibility 80% and specificity 94%, and 4) colour Doppler detected an atrial septal defect immediately after valvular dilation in 77% of patients, and permitted non invasive follow-up of the left to right shunt. At one year a left to right shunt at the atrial level persisted roughly in 1/3 of patients. We conclude that colour Doppler Echocardiography during percutaneous mitral valvotomy is useful for a rapid assessment of the increase in valve area, the detection and quantification of mitral regurgitation induced by valvular dilation and the follow-up in these patients.
Rodrigo
J L
JL
Departamento de Exploración Cardiopulmonar, Hospital Universitario San Carlos, Madrid.
Aubele
A
A
Alfonso
F
F
Macaya
C
C
Fernández Ortiz
A
A
Zarco
P
P
D001022:Aortic Valve Insufficiency / Q000000981:diagnostic imaging; D002404:Catheterization / Q000706:statistics & numerical data; D004452:Echocardiography / Q000706:statistics & numerical data; D015150:Echocardiography, Doppler / Q000706:statistics & numerical data; D005069:Evaluation Studies as Topic; D005500:Follow-Up Studies; D006801:Humans; D008943:Mitral Valve / Q000000981:diagnostic imaging*; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000628:therapy; D011446:Prospective Studies
Ecocardiografía-Doppler convencional y color en la valvotomía mitral con balón.