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Offene Herzchirurgie bei Fallot-Tetralogie mit Pulmonalatresie: Palliation und Korrektur

Tetralogy of fallot and pulmonary atresia: Open heart surgery for palliation and repair

  • Thmenschwerpunkt: Fortschritte in der Kinderherzchirurgie
  • Published:
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Zusammenfassung

Bei 28 aufeinanderfolgenden Patienten wurden offene Herzoperationen zur Korrektur und Palliation der Fallot-Tetralogie und Pulmonalatresie durchgeführt. Nach der Entwicklung des Pulmonalarteriensystems wurden die Patienten in folgende Gruppen eingeteilt: Gruppe I: gut ausgebildetes, zusammenhängendes Pulmonalarteriensystem mit unifokaler duktusabhängiger Durchblutung (17 Patienten); ohne (Gruppe IA) oder mit (Gruppe IB) Bifurkationsstenose. Gruppe II: hypoplastisches, zusammenhängendes oder unterbrochenes Pulmonalarteriensystem mit multifokaler Lungenperfusion (11 Patienten); >50% eines normalen Pulmonalarterienbettquerschnitts (Gruppe IIA), <50% (Gruppe IIB) sind perfundiert.

Die Operationen wurden durch Vorpalliationen kompliziert. 20 Patienten wurden korrigiert, 8 Patienten palliiert. Letalität: Gruppe I: 23,5% (4/17), IA: 9,0% (1/11). IB: 50,0% (3/6). Gruppe II: 45,4% (5/11), IIA: 33,3% (2/6). IIB: 60,0% (3/5). 4 der 5 Verstorbenen in Gruppe II waren nur palliiert worden. Die Operationen bestanden in rechtsventrikulären Ausflußtrakt-Rekonstruktionen und zum Teil prothetischen Unifokalisationen, bei Korrekturen wurde auch der Ventrikelseptumdefekt verschlossen, gegebenenfalls wurde der Verschluß wieder gefenstert. Bei Patienten der Gruppe I bevorzugen wir nunmehr die Primärkorrektur, gelegentlich auch bei Patienten der Gruppe IIA. Offene Palliationen werden in Gruppe II nur bei pulmonaler Überdurchblutung durchgeführt. Bei zyanotischen Patienten in Gruppe II sollten geschlossene, weiterführende Palliationen vorgenommen werden, die gegebenenfalls zu einer offenen Korrektur führen.

Summary

28 consecutive patients underwent open heart surgery for palliation or correction of tetralogy of Fallot and pulmonary atresia. According to their pulmonary artery anatomy they were divided as follows: Group I: Confluent pulmonary arteries. ductus dependent blood flow (17 patients): without (Group IA) or with (Group IB) bifurcation-stenosis. Group II: Hypoplastic confluent or nonconfluent pulmonary arteries fed by major aortopulmonary collateral arteries (11 patients); perfused pulmonary vascular bed >50% (Group IIA), or <50% (Group IIB) of normal. Surgery was complicated by previous palliations. 20 patients underwent corrective and 8 patients palliative procedures. Group I mortality was 23.5%, with only 9% (1/11) in IA, but 50.0% (3/6) in IB. Group II mortality was 45.4% (5/11); it was 33.3% (2/6) in IIA, but 60% (3/5) in IIB. 4 out of 5 deaths in Group II occurred in palliative procedures. Surgery comprised right ventricular outflow tract-reconstruction, and in part unifocalisation with GoreTex®-prostheses. In corrective procedures, the ventricular septal defect was closed, in some of them with a fenestrated patch. Now primary corrective procedures are preferred in all Group I patients and occasionally in Group IIA patients. Open heart surgery for palliation is only performed in high flow Group II patients. In cyanotic Group II patients, closed palliations are preferred. possibly leading to future repair.

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Ziemer, G., Kaulitz, R., Karck, M. et al. Offene Herzchirurgie bei Fallot-Tetralogie mit Pulmonalatresie: Palliation und Korrektur. Acta Chir Austriaca 25, 91–95 (1993). https://doi.org/10.1007/BF02602135

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