Boston - American Association for Thoracic Surgery

AMERICAN ASSOCIATION FOR THORACIC SURGERY(PAp) and right ventricular end diastolic pressure (RVEDp) (from latest post-Fontancatheterization). Clinical status was obtained from medical records and by contactwith the referring cardiologist if necessary.RESULTS: Of 118 HLHS patients (76 males) undergoing a Fontan for HLHS, 116had a fenestrated lateral tunnel and 2 an extra-cardiac conduit. At stage I, 36patients had an RV-PA conduit and 82 patients a Blalock-Taussig shunt (BTS). Allpatients survived the Fontan and were discharged home. Three patients were lostto follow-up. At a mean follow-up post Fontan of 27.6 months (range 0.2 to 88.9months), 4 patients had died and 1 had the Fontan circulation taken-down. Nopatient underwent a heart transplant. Most recent follow-up echocardiogramsfrom 115 patients (mean f/u in months of 14.5 for RV-PA and 34.8 for BTS) andcatheterizations from 66 (mean f/u in months of 18.8 for RV-PA and 43.6 for BTS)were reviewed. Hemodynamic results for RV-PA conduits versus BTS were, CI 3.3 ±0.69 vs 3.4 ± 1.15, PVR 2.0 ± 0.8 vs 1.7 ± 0.8, PAp 13.7 ± 3.1 vs 13.6 ± 4.4, RVEDp 8 ± 4.3vs 9.1 ± 4.8, respectively. No statistically significant differences were found betweenshunt types in terms of survival, degree of RV dysfunction, TV or neo-AV regurgitation,CI, PVR, PAp or RVEDp. Latest echocardiographic data is shown in table I.CONCLUSION: Contemporary results after Fontan palliation for HLHS areexcellent. At mid-term after the Fontan, there were no differences in terms of RVfunction, TV or neo-AV function or survival based on type of shunt used at stage Ipalliation.TUESDAYMorning159