[Technical innovations in total extracardiac cavo-pulmonary connection in Fontan-type operation. An experimental study and first 2 operated clinical cases with excellent immediate results].
BACKGROUND
Three technical modalities are presented with total extracardiac cava-pulmonary connection, with bidirectional Glenn, as coverage of this type of extracardiac connection for all types of cardiopathies suitable for Fontan type correction.


METHODS
Development of an experimental protocol for the perfecting of the three technical variants tested: "Tunnel from inferior cava to right pulmonary artery by means of right atrial wall and vascularized pericardium", "Tunnel from inferior cava to the trunk of the pulmonary artery with or without pulmonary valve with P.T.F.E. hemiconduit" and "Tunnel from inferior cava to the pulmonary graft as a artery with P.T.F.E. graft as a hemiconduit".


RESULTS
The first two clinical cases operated on using the third technical variant are presented. Both cases evolved during immediate postoperative period with a very favourable hemodynamic response, with pressures at conduit and P.A. level of 10-12 mmHg, normal cardiac output and sinus rhythm. The later clinical evolution in both cases is very satisfactory. The five cases published by Laschinger with this same technique showed a very favourable evolution during the immediate postoperative period and later.


CONCLUSIONS
The technical facility of its performance, the slight traumatism of this surgery, the important technical advantages with respect to the total cava-pulmonary intraauricular connection and the good initial hemodynamic results make us consider the total extracardiac cava-pulmonary connection as an important contribution in this type of surgery. It is clear that time and greater clinical experience with this type of connection is required for the correct evaluation of all and each one of the numerous theoretical advantages shown and in order to detect possible disadvantages.
Alvarez Díaz
F
F
Servicio de Cirugía Cardíaca Infantil, Hospital La Paz, Madrid.
Cabo Salvador
J
J
Cordovilla Zurdo
G
G
Sanz Galeote
E
E
Vargas
R
R
Moreno Granados
F
F
de Miguel del Campo
E
E
D000293:Adolescent; D000790:Angiocardiography; D000818:Animals; D001807:Blood Vessel Prosthesis; D002648:Child; D006330:Heart Defects, Congenital / Q000601:surgery*; D006352:Heart Ventricles / Q000002:abnormalities*; D006439:Hemodynamics; D006801:Humans; D008297:Male; D011138:Polytetrafluoroethylene; D011651:Pulmonary Artery / Q000601:surgery*; D011666:Pulmonary Valve Stenosis / Q000601:surgery*; D012756:Sheep; D013552:Swine; D014188:Transposition of Great Vessels / Q000601:surgery*; D018785:Tricuspid Atresia / Q000601:surgery*; D014682:Vena Cava, Inferior / Q000601:surgery*
D011138:Polytetrafluoroethylene
Innovaciones técnicas de la conexión cavo-pulmonar total extracardíaca en la cirugía tipo Fontan. Estudio experimental y dos primeros casos clínicos operados con excelentes resultados inmediatos.