[Initial analysis of the use of the L-D-Hydro (Eato L-D-Hydro) organic tubular graft for performing the modified Blalock-Taussig procedure in congenital heart diseases with decreased pulmonary blood flow].
OBJECTIVE
To analyze the initial results of the use of an organic tubular graft for systemic-pulmonary anastomoses.


METHODS
From March 2002 to April 2003, 10 patients underwent systemic-pulmonary shunt of the modified Blalock-Taussig type, using a new type of biological graft originating from the bovine mesenteric artery treated with polyglycol, the so-called L-D-Hydro. The patients' ages ranged from 3 days to 7 years, and 60% of them were of the male sex. The diagnoses of heart disease were determined on echocardiography. All patients had clinical signs of severe hypoxia (cyanosis). The heart diseases were as follows: tetralogy of Fallot (40%), tricuspid atresia (50%), and atrioventricular septal defect (10%).


RESULTS
One patient died due to sepsis and 9 had an immediate improvement in O2 saturation on pulse oximetry and in the partial oxygen pressure on arterial blood gas analysis. The intensive care unit length of stay ranged from 2 to 6 days. No patient had obstruction of the shunt on the immediate postoperative period or any other complication. All patients had a patent shunt on the echocardiographic studies performed in the immediate postoperative period and later, in the third postoperative month. No bleeding occurred during surgery or in the postoperative period.


CONCLUSIONS
The tubular L-D-Hydro graft proved to be promising for performing systemic-pulmonary shunt as an alternative for the inorganic products available in the market, however, we need a greater number of implantations and late follow-up for definitive assessment.
Silveira
Wilson Luiz da
WL
Grupo CentroCardio, Hospital Santa Genoveva, Goiânia, GO. wilson@cardiol.br
Sousa
Mirna de
Md
Peixoto
Fernanda A Oliveira
FA
Lobo
Rogério Souza
RS
Rios
Mailza A Costa
MA
Souza
Carlos César Elias de
CC
Ferreira
Fabiana A Penachi Bosco
FA
Costa
Lincoln Henrique
LH
Pansanni
João Alberto
JA
Leite
Adélio Ferreira
AF
D000818:Animals; D001166:Arteriovenous Shunt, Surgical; D001672:Biocompatible Materials; D001807:Blood Vessel Prosthesis; D002417:Cattle; D002648:Child; D002675:Child, Preschool; D005260:Female; D006330:Heart Defects, Congenital / Q000601:surgery*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008638:Mesenteric Arteries; D011651:Pulmonary Artery / Q000502:physiology / Q000601:surgery*; D012039:Regional Blood Flow; D013348:Subclavian Artery / Q000601:surgery*
D001672:Biocompatible Materials