超低出生体重儿的心血管支持治疗

Cardiovascular support for extremely low birth weight infants

早产儿循环系统在出生时发育不成熟，常发生早产儿低血压和动脉导管未闭，其处理方法不同，常会影响患儿存活率和预后。扩容药物、血管活性药物、环氧化酶抑制剂以及肾上腺皮质激素等是较常用的药物，但对超低出生体重儿发生的心血管系统问题何时需要处理和如何处理一直困扰着临床医生。

The development of cardiovascular system in very premature infants is immature. Hypotension and patent ductus arteriosus are common problems in the few days of life. The enormous difference that these infants receive cardiovascular support may affect the morbidity and mortality. Volume expansion, inotropes, cyclooxygenase inhibitor and glucocorticoid is commonly used drugs, but when and how to treat for these extremely low birth weight infants with cardiovascular problems has been plagued by clinical doctors.