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Influence of ventricular morphology on aerobic exercise capacity in patients after the Fontan operation

Hideo Ohuchi, MD^*, Kenji Yasuda, MD^*, Satoshi Hasegawa, MD^*, Aya Miyazaki, MD^*, Motoki Takamuro, MD^*, Osamu Yamada, MD^*, Yasuo Ono, MD^*, Hideki Uemura, MD, Toshikatsu Yagihara, MD and Shigeyuki Echigo, MD^*

^* Department of Pediatrics, National Cardiovascular Center, Osaka, Japan
Department of Thoracic Surgery, National Cardiovascular Center, Osaka, Japan

View larger version (16K): [in a new window]   Figure 1 Comparison of predicted peak oxygen uptake (PO2) among groups RV, BV and LV (excluding patients with significant atrioventricular valve regurgitation and/or hypoxia). BV = biventricle; LV = left ventricle; RV = right ventricle.

View larger version (15K): [in a new window]   Figure 2 Relationship between small/main ventricular volume ratio and peak oxygen uptake (PO2) in group BV (excluding patients with significant atrioventricular valve regurgitation and/or hypoxia).

View larger version (17K): [in a new window]   Figure 3 Relationship between decrease in predicted peak heart rate and predicted peak oxygen uptake (PO2) during the follow-up study.

View larger version (18K): [in a new window]   Figure 4 Relationship between age at Fontan operation and peak oxygen uptake (PO2) in patients after the Fontan operation (excluding patients with significant atrioventricular valve regurgitation and/or hypoxia). Open circles = group LV; open squares = group BV; closed circles = group RV. BV = biventricle; LV = left ventricle; RV = right ventricle.