I agree that pregnancy does not increase the risk of having urolithiasis. The truth is that during pregnancy anatomical and physiological changes occur that could predispose to kidney stone formation, but the incidence of symptomatic stones is the same in pregnant and not pregnant women of the same age.
You could find interesting to read:
Urolithiasis in pregnancy. I: pathophysiology, fetal considerations and diagnosis
C.S. Biyani, A.D. Joyce
BJU International
Volume 89, Issue 8, pages 811–818, May 2002
(Old but you can find the pathophysiological changes mentioned )
Urolithiasis in pregnancy
Stavros Charalambous, Asterios Fotas, D. E. E. Rizk
International Urogynecology Journal
September 2009, Volume 20, Issue 9, pp 1133-1136
(The first two are Greek and this is the only reason it is recommended :))
I give u as an attachment the only thing i have on urolithiasis in my computer
pogesterone mediated ureteric dilatation, the gravid uterus impairing ureteric transit, relative volume depletion may all act to increase the risk in pregnancy but the incidence differences are really not well substantiated - renal colic in young women is often perceived to be more commonly seen in pregnant women whist isolated renal colic is usually in older women but the incidences reported vary widely from 1:1500-1:3000 or less so data remaing conflicting
From the current-best evidence literature that I searched r e urolithiasis (renal calculi) in pregnancy: "The following applies: (1) The incidence of renal calculi is as in the non-pregnant population. (2) Treatment is as in the non-pregnant patient. (3) Renal calculi in pregnant patients can be complicated by pyelonephritis and premature (pre-term) labour, especially if misdiagnoded or inadequately treated. (4) Ultrasound is a safe and sensitive diagnostic test. (5) Approximately two thirds of renal calculi will pass sponateneously.(6) For those who require intevention, placement of a double-J stent is a safe and effecive option.
If qouted:please qoute as: Nel JT, Monokoane TS, Moodley M. Core Obstetrics & Gynaecology with Examination Guidelines for M.B.Ch..B. Second edition. Johannesburg: Pearson Publishers: In Press.
I sincerely hope thie will help.
Prof JT Nel MB.Ch.B., MMed. (O.& G.) (Stell.); F.C.O.G.(S.A.); M.R.C.O. G. (Lond.); F.R.C.S. (Edin.); F.R.C.O.G. (Lond.).
Please contact me if you require additional information.
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