[Angioplasty of the stenotic Blalock-Taussig].
BACKGROUND
Balloon angioplasty is a useful therapeutic method in some congenital heart diseases. We show our experience of stenotic Blalock-Taussig angioplasty, which was effective in six cases.


METHODS
Six symptomatic patients with different congenital heart diseases, reduced pulmonary blood flow and a previous Blalock-Taussig shunt (it was classic in three patients and modified in another three) underwent the procedure. Conventional angioplasty was performed in four cases and coronary angioplasty technique, under monorail system, was applied in the other two.


RESULTS
After angioplasty, we observed an increase in the minimum luminal diameter from 1 +/- 0.7 to 4 +/- 0.5 mm (p < 0.01), a reduction in the percentage of the stenosis from 77 +/- 15 to 13 +/- 13 (p < 0.01) and an increase in oxygen saturation from 63 +/- 10% to 82 +/- 5% (p < 0.05). The effectiveness of the technique in an extreme case of a thrombosed Blalock-Taussig, hours later the surgery, is reported. In the follow-up, we observed a symptomatic improvement, stable oxygenation levels, and a tendency in the hematocrit reduction.


CONCLUSIONS
We consider that angioplasty of Blalock-Taussig shunt is indicated in those symptomatic patients, in whom a complete surgical correction is contraindicated. We demonstrate the effectiveness of the procedure, the coronary angioplasty, under monorail system is very useful for the stenotic modified Blalock-Taussig. It can be an effective technique when there is a postoperative thrombosis of the fistula.
Alcíbar
J
J
Sección de Hemodinámica, Hospital de Cruces, Vizcaya.
Cabrera
A
A
Oñate
A
A
Galdeano
J M
JM
Rumoroso
J R
JR
Pastor
E
E
Eneriz
M A
MA
Arana
J I
JI
Llorente
A
A
Martínez
P
P
D000714:Anastomosis, Surgical / Q000009:adverse effects* / Q000379:methods; D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000209:etiology / Q000628:therapy*; D002648:Child; D002675:Child, Preschool; D003251:Constriction, Pathologic / Q000209:etiology / Q000628:therapy; D005260:Female; D006330:Heart Defects, Congenital / Q000601:surgery*; D006801:Humans; D007223:Infant; D008297:Male; D011651:Pulmonary Artery / Q000601:surgery; D013348:Subclavian Artery / Q000601:surgery
Angioplastia del Blalock-Taussig estenótico.