Assessment of variability of renal blood flow Doppler parameters during the menstrual cycle in women

Wiley - Tập 25 Số 1 - Trang 60-69 - 2005
Jarosław Krejza1, Andrzej Ustymowicz2, A. Szylak2, Michał Tomaszewski2, Andrzej Hryniewicz3, Abbas F. Jawad1,4
1Department of Radiology, Hospital of the University of Pennsylvania USA
2Department of Radiology of Bialystok University School of Medicine, Poland
3Department of Pediatrics, Children's Hospital of Bialystok University School of Medicine, Poland
4University of Pennsylvania School of Medicine and Department of Pediatrics, Children's Hospital of Philadelphia, PA, USA

Tóm tắt

AbstractObjectiveTo estimate variability of renal flow Doppler parameters during the menstrual cycle in young women, and to explore whether the parameters oscillate substantially throughout the cycle.MethodsThe peak systolic, mean, and end‐diastolic velocities, pulsatility (PI) and resistance (RI) indices, acceleration time (AT) and index (AI) of the right renal artery were measured nine times during the cycle with duplex sonography in 14 healthy women (age range, 23–25 years), and correlated with plasma concentrations of 17β‐estradiol and progesterone. Coefficient of variation (CV), interclass correlation (ρ), and repeatability coefficients (RC) were used to measure the variability.ResultsThe measures of the variability for AI and AT were: CV = 45.4% and 37.3%; ρ = 0.25 and 0.15; RC = 10.1 and 99.5, respectively. The CV for flow velocities varied from 24.1% to 25.5%, ρ from 0.49 to 0.50, RC from 22.7 for end‐diastolic to 63.3 for peak systolic velocity. The respective figures for PI and RI were: CV = 17% and 8.3%; ρ = 0.21 and 0.29; RC = 0.53 and 0.15. Fluctuations of the flow parameters, hematocrit, hemoglobin, heart rate, and systolic blood pressure during the menstrual cycle were insignificant, while the diastolic blood pressure decreased by about 7 mmHg (P < 0.01) in the luteal phase.ConclusionThe variability of renal flow Doppler parameters during the menstrual cycle in young healthy women is substantial. However, fluctuations of the values of the parameters throughout the cycle were non‐significant. Copyright © 2004 ISUOG. Published by John Wiley & Sons, Ltd.

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Wiley

Tập 25 Số 1

60-69

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