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  • Title: Total cavopulmonary anastomosis: selection criteria related to postoperative results.
    Author: Hofbeck M, Singer H, Scharf J, Wild F, Ries M, Mahmoud O, Blum U, von der Emde J.
    Journal: Thorac Cardiovasc Surg; 1993 Feb; 41(1):28-33. PubMed ID: 8367853.
    Abstract:
    In this study we review our experience with total cavopulmonary anastomosis (modified Fontan procedure) which was performed in 31 patients. One patient died from postoperative cardiac low-output syndrome, the other died from a neurological complication (early mortality 6.5%). During a mean follow-up period of 15 months there was no late mortality. Preoperative assessment showed that one, two, or three of the Choussat criteria (defining the ideal Fontan candidate) were not fulfilled by 39%, 16% and 6% of our patients. In the 2 patients who died 2 and 3 of those criteria were not fulfilled. Poor outcome could not be predicted based on assessment of the pulmonary artery size (expressed as the McGoon-ratio or the Nakata-index) alone. In order to assess the relationship of pulmonary artery size and pulmonary arteriolar resistance (PVR) as a predictor of outcome, we introduced two new indices (McGoon-ratio/PVR and Nakata-index/PVR). The patient who died from poor postoperative hemodynamics had the lowest values of all patients. Among the 29 survivors we did not observe significant acquired postoperative arrhythmias. In our experience the total cavopulmonary anastomosis can be performed with a low mortality and good postoperative results. Patients who do not fulfill at least 8 of the Choussat criteria and children with a low ratio of pulmonary artery size to PVR are high-risk patients. In these children we recommend either a bidirectional Glenn anastomosis as a first-step procedure or a total cavopulmonary anastomosis with a fenestration of the intraatrial tunnel.
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