结论婴幼儿法乐氏四联征肺血流减少导致肺细小动脉和肺泡发育异常。

Conclusions the development of pulmonary small arteries and alveoli are directly affected by the diminished pulmonary flow in infants with tetralogy of Fallot.

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尽管CAS是一种微创治疗方法，但仍然有许多潜在的并发症，如血流动力学异常、过度灌注综合征、脑梗死和再狭窄等。

Although CAS is a microinvasive technique, it has some potential complications, such as hemodynamic abnormalities, hyperperfusion syndrome, cerebral infarction, and restenosis.

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