Petrikovsky B M, Cuomo M I, Schneider E P, Wyse L J, Cohen H L, Lesser M
Division of Maternal-Fetal Medicine, North Shore University Hospital-Cornell University Medical College, Manhasset, NY 11030, USA.
Prenat Diagn. 1995 Sep;15(9):827-9. doi: 10.1002/pd.1970150906.
The aim was to assess the role that fetal bladder size has in the determination of fetal hydronephrosis. Forty-three fetuses were evaluated for fetal hydronephrosis in the second trimester of pregnancy. Anteroposterior measurements of the renal pelvis were obtained with a full bladder and again when the bladder emptied in each fetus. Statistical analysis was performed using the Spearman rank order correlation coefficient to assess the relationship between bladder status and renal dilation. The anteroposterior size of the fetal renal pelvis diminished from 6.8 +/- 1.8 mm on a full bladder scan to 4.5 +/- 1.6 mm when the bladder was emptied (P < 0.001). Fifty-three per cent of the fetuses whose renal pelvic measurements were 5 mm or more on a full bladder scan had normal-appearing renal pelvises when their bladders emptied. The status of the fetal bladder should be considered when evaluating fetal hydronephrosis.
目的是评估胎儿膀胱大小在胎儿肾积水判定中所起的作用。对43例妊娠中期胎儿进行肾积水评估。在每个胎儿膀胱充盈时测量肾盂前后径，膀胱排空后再次测量。采用Spearman等级相关系数进行统计分析，以评估膀胱状态与肾扩张之间的关系。胎儿肾盂前后径在膀胱充盈扫描时为6.8±1.8 mm，膀胱排空时为4.5±1.6 mm（P<0.001）。膀胱充盈扫描时肾盂测量值≥5 mm的胎儿中，53%在膀胱排空时肾盂外观正常。评估胎儿肾积水时应考虑胎儿膀胱状态。
