Benders M J, van Bel F, van de Bor M
Department of Pediatrics, University Hospitals Leiden, The Netherlands.
Biol Neonate. 1998;73(4):228-34. doi: 10.1159/000013981.
Mean renal blood flow velocity (RBFV) was studied with two-dimensional/ pulsed Doppler ultrasound and relative renal vascular resistance (RVR) was calculated before, during, and after phototherapy treatment in 30 preterm infants (gestational age < or = 32 weeks) who were treated for a minimum of 12 h with phototherapy for nonhemolytic hyperbilirubinemia. RBFV decreased, whereas RVR increased significantly after the initiation of phototherapy. In 'healthy' (nonventilated) infants RBFV and RVR returned to baseline values after discontinuation of phototherapy. Whereas in 'unhealthy' (ventilated) infants, RBFV and RVR did not return to baseline values after discontinuation of phototherapy. In 16 infants (> 50% of the cases) the ductus arteriosus reopened during phototherapy.
采用二维/脉冲多普勒超声研究了30例接受光疗至少12小时以治疗非溶血性高胆红素血症的早产儿（胎龄≤32周）在光疗前、光疗期间和光疗后的平均肾血流速度（RBFV），并计算了相对肾血管阻力（RVR）。光疗开始后，RBFV降低，而RVR显著升高。在“健康”（未通气）婴儿中，光疗停止后RBFV和RVR恢复至基线值。而在“不健康”（通气）婴儿中，光疗停止后RBFV和RVR未恢复至基线值。16例婴儿（超过病例的50%）在光疗期间动脉导管重新开放。
