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Re: amniotic fluid volumes From: Dr. Ainsworth (ainsron@sbcglobal.net) Tue Jun 13 12:58:50 2006 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: Dr Eberhard Lisse: "Re: HPV Vaccine" Previous message: art fougner, md: "OB: Britain's Smallest Baby" In reply to: Dr. Ainsworth: "Re: amniotic fluid volumes" Next in thread: Efrain Ramirez: "Re: amniotic fluid volumes" Reply: Efrain Ramirez: "Re: amniotic fluid volumes" Looks like the best reference is Chamberlain, Manning, et.al; Ultrasound evaluation of amniotic fluid volume, Am J Obstet Gynecol, 1984; 150:245-249. The classic article on Amniotic fluid volume in pregnancy is by Queenan, also in Am J Obstet Gynecol, 114: 34, 1972. There is a good graph in his book, Management of High-risk pregnancy. It shows amniotic fluid volume peaking around 34wks, with a mean of ~900 and a range of 400-1300 mL (+ or – 1 SD). How long it takes to reaccumulate depends on pathologic process. He states that the fetus produces 43 mL of urine per hour and the average exchange between mother and fetus is 3600 mL per hour, according to studies from 1959 by Hutchinson. Ronald E. Ainsworth, MD, FACOG At Mon, 12 Jun 2006, Dr. Ainsworth wrote: > >I'll resend this message tomorrow from my office, half of the message is >missing!! Any idea why this and other emails I've sent are truncated? Is >it happening at the OB-gyn website, or is it happening in my email >program, Outlook?? > >At Mon, 12 Jun 2006, ainsron wrote: >> >>Looks like the best reference is Chamberlain, Manning, et.al; Ultrasound >>150:245-249. >>The classic article on Amniotic fluid volume in pregnancy is by Queenan, >>his >>book, Management of High-risk pregnancy. It shows amniotic fluid volume >>or - >>1 SD). How long it takes to reaccumulate depends on pathologic process. He >>states that the fetus produces 43 mL of urine per hour and the average >>studies >>from 1959 by Hutchinson. >> >>Ronald E. Ainsworth, MD, FACOG >> >>-----Original Message----- >>Charlie >>Chambers >>Sent: Monday, June 12, 2006 12:57 PM >>To: Multiple recipients of list OB-GYN-L >>Subject: amniotic fluid volumes >> >>I'm trying to correlate AFI's to true amniotic fluid volume. Does anyone >>normal >>true volume at term? And lastly, if one performs a reduction amnio, over >>what length of time does the fluid reaccumulate? >> >>Thanks for the help. I couldn't find it in my references. >> >>-- >>Charlie Chambers >> >>Hood River, OR >> >>cchamber@alumni.rice.edu >> >>"No matter where you go... >> >> there you are." >> >>Dr. Buckaroo Banzai >> >>************************************************************************ >> >>************************************************************************ >>************************************************************************ >> Next message: Dr Eberhard Lisse: "Re: HPV Vaccine" Previous message: art fougner, md: "OB: Britain's Smallest Baby" In reply to: Dr. Ainsworth: "Re: amniotic fluid volumes" Next in thread: Efrain Ramirez: "Re: amniotic fluid volumes" Reply: Efrain Ramirez: "Re: amniotic fluid volumes"

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