![]() ![]() Differences were only statistically significant for end-expiratory IVC blood flow (P=0.033). Mean absolute blood flow in Fontan patients for AAo, IVC and SVC was 3.14☐.78, 1.84☐.52 and 0.93☐.38L/min/m2 which remained unchanged under inhalative oxygen (3.13☐.77, 1.88☐.65 and 0.89☐.32L/min/m2).Īortic flow rate was elevated during expiration (4.8±5.5%) and decreased during inspiration (-2.9☘.7%) in relation to mean blood flow, highest flow was detected during inspiration in IVC (81.1±55.3%) and SVC (18.6☓0.8%) and lowest flow during expiration (IVC:-85.7±56.9%,P<0.05) and end-inspiration (SVC:-21.0☑9.2%,P<0.05), respectively. Effects were more pronounced in pts with good Fontan circulation (HR:75.2☑5.9 vs. Mean body-surface indexed stroke volumes (SV i) increased slightly but only aortic SV i change was statistically significant (pre:41.5ml/m2 post:43.6ml/m2 P=0.043). ![]() Under oxygen administration heart rate decreased from 77.6☑5.7 to 75.9☑4.6bpm (P=0.027).
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