TY - JOUR
T1 - Effect of renal Doppler ultrasound on the detection of nutcracker syndrome in children with hematuria
AU - Shin, Jae Il
AU - Park, Jee Min
AU - Lee, Jae Seung
AU - Kim, Myung Joon
PY - 2007/5
Y1 - 2007/5
N2 - To assess the detection rate of nutcracker syndrome in children with isolated hematuria, renal Doppler ultrasound examinations were routinely performed on 216 consecutive children (176 microscopic hematuria and 40 gross hematuria). Renal Doppler ultrasound was also performed on 32 healthy normal children. The peak velocity (PV) was measured at the hilar portion of the left renal vein (LRV) and at the LRV between the aorta and the superior mesenteric artery. The PV at the aortomesenteric portion (P=0.003) and the PV ratios of the LRV (P=0.003) were significantly higher in children with hematuria than in normal children, while the PV at the hilar portion was not different. If a PV ratio of the LRV of at least 4.1 (the cut-off level set at the mean ±2 SD of the value for the normal children) was defined as abnormal, 72 cases (33.3%) in children with hematuria and no cases in normal children were diagnosed as having nutcracker syndrome. The prevalence of nutcracker syndrome is relatively high in children with isolated hematuria, and the inclusion of renal Doppler ultrasound as a screening examination has a substantial effect on the detection of nutcracker syndrome.
AB - To assess the detection rate of nutcracker syndrome in children with isolated hematuria, renal Doppler ultrasound examinations were routinely performed on 216 consecutive children (176 microscopic hematuria and 40 gross hematuria). Renal Doppler ultrasound was also performed on 32 healthy normal children. The peak velocity (PV) was measured at the hilar portion of the left renal vein (LRV) and at the LRV between the aorta and the superior mesenteric artery. The PV at the aortomesenteric portion (P=0.003) and the PV ratios of the LRV (P=0.003) were significantly higher in children with hematuria than in normal children, while the PV at the hilar portion was not different. If a PV ratio of the LRV of at least 4.1 (the cut-off level set at the mean ±2 SD of the value for the normal children) was defined as abnormal, 72 cases (33.3%) in children with hematuria and no cases in normal children were diagnosed as having nutcracker syndrome. The prevalence of nutcracker syndrome is relatively high in children with isolated hematuria, and the inclusion of renal Doppler ultrasound as a screening examination has a substantial effect on the detection of nutcracker syndrome.
UR - http://www.scopus.com/inward/record.url?scp=33947412412&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33947412412&partnerID=8YFLogxK
U2 - 10.1007/s00431-006-0252-7
DO - 10.1007/s00431-006-0252-7
M3 - Article
C2 - 17051355
AN - SCOPUS:33947412412
SN - 0340-6199
VL - 166
SP - 399
EP - 404
JO - European Journal of Pediatrics
JF - European Journal of Pediatrics
IS - 5
ER -