Hack W W, Vos A, van der Lei J, Okken A
Department of Paediatrics, University Hospital, Free University, Amsterdam, The Netherlands.
Eur J Pediatr. 1990 Jan;149(4):275-7. doi: 10.1007/BF02106293.
The incidence and duration of total occlusion of the radial artery after catheter removal was determined using repeated Doppler flow measurements. Thirty-two newborn infants with birthweights ranging from 945 g to 3890 g (median 1935 g) and gestational age ranging from 26 to 40 weeks (median 32 weeks) were studied. In 20 out of 32 infants (63%), complete occlusion of the radial artery occurred. The number of occlusions were not related to birthweight, gestational age or duration of cannulation. In all infants, blood flow in the radial artery resumed within 1-29 days after catheter removal. The duration of occlusion was directly related to the duration of cannulation and inversely related to birthweight. This study demonstrates a high frequency of total occlusion of the radial artery in newborn infants after percutaneous radial artery cannulation. In the majority of infants with a radial artery catheter, blood flow to the tissue distal to the cannulation site is dependent solely on the existence of an adequate arterial palmar collateral circulation.
通过反复进行多普勒血流测量，确定了拔管后桡动脉完全闭塞的发生率和持续时间。研究了32例出生体重在945克至3890克（中位数1935克）之间、胎龄在26至40周（中位数32周）之间的新生儿。32例婴儿中有20例（63%）发生了桡动脉完全闭塞。闭塞的次数与出生体重、胎龄或置管时间无关。所有婴儿在拔管后1至29天内桡动脉血流恢复。闭塞持续时间与置管时间直接相关，与出生体重呈负相关。本研究表明，经皮桡动脉置管后新生儿桡动脉完全闭塞的发生率很高。在大多数留置桡动脉导管的婴儿中，插管部位远端组织的血流仅取决于是否存在足够的动脉掌侧侧支循环。
