Miyairi T, Kawauchi M, Furuse A
Department of Thoracic Surgery Faculty of Medicine, University of Tokyo.
Kyobu Geka. 1990 Jul;43(8):611-9.
Twenty-six postoperative patients with tetralogy of Fallot (TF) were evaluated by exercise stress test with an upright cycle ergometer. Oxygen uptake was assessed at the anaerobic threshold and the peak achieved work load. Oxygen uptake at the anaerobic threshold (VO2AT) was in the normal range regardless of the existence of residual stenosis (PS) or pulmonary regurgitation (PR). However, oxygen uptake at the peak achieved workload (VO2max) was subnormal in patients with PS or PR. Maximal heart rate in TF patients was lower than normal. Patients with PR showed significantly reduced VO2max as compared with those without PR (p less than 0.05). This is found to be resulted from limitation of the oxygen pulses increase.
对26例法洛四联症（TF）术后患者使用立式自行车测力计进行运动应激试验评估。在无氧阈和达到的峰值工作量时评估摄氧量。无论是否存在残余狭窄（PS）或肺动脉反流（PR），无氧阈时的摄氧量（VO2AT）均在正常范围内。然而，存在PS或PR的患者在达到的峰值工作量时的摄氧量（VO2max）低于正常水平。TF患者的最大心率低于正常。与无PR的患者相比，有PR的患者VO2max显著降低（p小于0.05）。发现这是由于氧脉冲增加受限所致。
