Renal colic in pregnant women: role of renal resistive index

Shokeir, Ahmed A.; Mahran, M. R.; Abdulmaaboud, Magdy

doi:10.1016/s0090-4295(99)00475-6

Cited by 129 publications

(56 citation statements)

References 15 publications

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“…The normal kidney has an resistive index of <0.7 and there is an increase in the resistive index to a value of >0.7 seen in the obstructed kidney because of the reduction in diastolic velocity and reduced blood flow seen in association with obstruction 15 . The measurement of resistive index reaches diagnostic sensitivity within 3 -4 hours 15,16 . Another role of ultrasound is the assessment of ureteric jets to diagnose an obstructed system 17 , although this technique does require prior experience.…”

Section: Discussionmentioning

confidence: 99%

Managing severe loin pain in pregnancy

Irving¹

2002

BJOG: An International Journal of Obstetrics and Gynaecology

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Objective To investigate whether the intravenous urogram used in an appropriate setting is a valuable investigation for managing severe loin pain in pregnancy. Design Prospective observational study.Setting University teaching hospital.Population Fifteen pregnant women referred with severe loin pain.Methods A prospective study collecting data over a 24-month period was performed. Women with severe loin pain believed to be of renal origin that had failed to respond to conservative treatment were referred by their obstetricians. The intravenous urogram was performed that consisted of a two-film series (plain film and a 20-minute postmicturition film). Main outcome measures Management of severe loin pain in pregnancy based on the findings of the intravenous urogram. Results Over the two-year period, 15 women had an intravenous urogram performed at a median gestation of 32 weeks (24 -36 weeks). All women had undergone a prior urinary tract ultrasound examination within 24 hours of referral, which showed dilatation on the symptomatic side in 15/15 cases. The intravenous urogram confirmed dilatation on the ipsilateral side in 14/15 cases and revealed the level of dilatation in all of these cases. Delayed excretion of contrast was seen in all 14/15 cases. Three patients had obstructing ureteric calculi revealed by the intravenous urogram and one patient had a non-dilated and non-obstructed system. Conclusions An intravenous urogram is a safe investigation in the appropriate setting. It allows for an accurate diagnosis to be made and for appropriate treatment to be instigated with joint decisions from urologic, obstetric and radiologic teams. This multidisciplinary approach care can be specifically tailored to the individual patient, which we feel is safer for both mother and baby.

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Section: Discussionmentioning

confidence: 99%

Managing severe loin pain in pregnancy

Irving¹

2002

BJOG: An International Journal of Obstetrics and Gynaecology

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“…Nevertheless, several studies confirmed that an RI of ≥0.70 is of limited value in the diagnosis of acute obstruction because the time is too short to allow RI to reach this threshold value [21, 22]. More recent studies used the difference between RI of obstructed and nonobstructed kidneys (ΔRI) and obtained satisfactory results [23, 24, 25, 26]. With a ΔRI of ≥0.04 we have recently obtained a sensitivity of 95%, a specificity of 100% and an overall accuracy of 99% in the diagnosis of acute unilateral ureteric obstruction [26].…”

Section: Diagnosismentioning

confidence: 99%

“…More recent studies used the difference between RI of obstructed and nonobstructed kidneys (ΔRI) and obtained satisfactory results [23, 24, 25, 26]. With a ΔRI of ≥0.04 we have recently obtained a sensitivity of 95%, a specificity of 100% and an overall accuracy of 99% in the diagnosis of acute unilateral ureteric obstruction [26]. …”

Section: Diagnosismentioning

confidence: 99%

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Renal Colic: Pathophysiology, Diagnosis and Treatment

Shokeir

2001

European Urology

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“…Valores do índice de resistividade superiores a 0,7 seriam indicadores de obstrução (Sauvain et al,1989;Platt, 1996;Palmer et al, 1995;Shokeir et al, 2000, Shokeir et al, 2001.…”

Section: Aspectos Diagnósticosunclassified

Acurária do estudo dos jatos ureterais à ultra-sonografia do Doppler Colorido no diagnóstico das hidronefroses

Bessa¹,

de²

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Renal colic in pregnant women: role of renal resistive index

Cited by 129 publications

References 15 publications

Managing severe loin pain in pregnancy

Managing severe loin pain in pregnancy

Renal Colic: Pathophysiology, Diagnosis and Treatment

Acurária do estudo dos jatos ureterais à ultra-sonografia do Doppler Colorido no diagnóstico das hidronefroses

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