[Percutaneous mitral valvuloplasty. Immediate results with the 30 mm diameter dilatation balloon].
Percutaneous balloon dilatation of the mitral valve is a promising alternative to surgical treatment for patients with mitral stenosis. We analysed echocardiographic and haemodynamic results in 62 consecutive patients who underwent mitral dilatation with a big and one chamber balloon (30 mm diameter). The relationship between the dilatation balloon area and body surface was 4.2 (in 98% of patients it was bigger than 3.5). In the whole series we get significant improvements in the haemodynamic parameters and mitral areas (0.91 cm2 versus 1.78 cm2)(p < 0.005). According to the echocardiographic score, patients were divided in two groups. Good results (mitral area > 1.5 cm2, and final, valve area 50% greater than the initial area), were obtained in 93% of patients with a score of 8 or less, and in 45% of patients with a score bigger than 8. Seventy-five percent of patients with bad results (mitral area < 1.5 cm2) were in atrial fibrillation versus 37% of patients where we get a good results. Mortality of procedure was nulle, and two patients required surgery because of procedure failure for mitral insufficiency. We can conclude: percutaneous mitral valvuloplasty with single balloon is valid alternative, and good results can be expected if there is a good relationship between the area of balloon and patient's body-surface. The echocardiographic score and presence of atrial fibrillation can predict immediate results of this technique.
Ubago
J L
JL
Servicio de Cardiología, Policlínica Guipúzcoa, San Sebastián.
Larmán
M
M
Sáenz
A
A
Montes
J
J
Llamas
A
A
Barrutieta
I
I
Martínez
G
G
Querejeta
R
R
Gallo
I
I
D000328:Adult; D000368:Aged; D002404:Catheterization / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000628:therapy*
Valvuloplastia mitral percutánea. Resultados inmediatos con balón de dilatación de 30 mm de diámetro.