Journal Article

Repeated successful pregnancies after kidney transplantation in 102 women (Report by the EDTA Registry

J. H. H. Ehrich, C. Loirat, J. M. Davison, G. Rizzoni, B. Wittkop, N. H. Selwood and N. P. Mallick

in Nephrology Dialysis Transplantation

Published on behalf of European Renal Association - European Dialysis and Transplant Assoc

Volume 11, issue 7, pages 1314-1317
Published in print July 1996 | ISSN: 0931-0509
Published online July 1996 | e-ISSN: 1460-2385 | DOI: http://dx.doi.org/10.1093/oxfordjournals.ndt.a027544
Repeated successful pregnancies after kidney transplantation in 102 women (Report by the EDTA Registry

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Background

Between 1967 and 1990, 820 successful pregnancies in 718 women on renal replacement therapy (RRT) were reported to the EDTA Registry.

Methods

This study analyses data on repeated successful pregnancies in 102 of these women, of whom 99 had two and three had three pregnancies.

Results

Primary renal diseases were mainly glomerulonephritis (41%), pyelonephritis (32%), and congenital malformations such as cystic diseases and hypoplasia or dysplasia (13%). Mean age at start of RRT was 21 years±5 SD. Ninety-four per cent of the women had the same transplant during the first and second pregnancies; 85% of these were alive with their first graft and 9% with a second graft; 4% were retransplanted after the first pregnancy and 2% were back on dialysis during the second pregnancy.

Of the mothers with two successful pregnancies, two-thirds had a serum creatinine below 121 μmol/l after the first or after the second pregnancy. Six mothers lost their first graft after the first pregnancy. None of the mothers had died after delivery of the second or third baby.

Several features of the first and the second pregnancy in these mothers were quite similar. Mean gestational age was 36 weeks ±3 SD during first and second pregnancy. Mean birth weight (height) of the first child was 2490 g±660 SD (48 cm±4 SD) and 2587 g±639 SD (50 cm±3 SD) of the second child (NS). Neonatal mortality was 4% after the first and second delivery; congenital abnormalities were found in five and three children respectively.

Conclusions

Fourteen per cent of mothers who had a successful pregnancy on RRT subsequently had a second baby. Repeated pregnancies should not adversely affect graft function and/or fetal development provided that graft function was well preserved at the time of conception.

Keywords: renal transplantation; pregnancy; newborns

Journal Article.  0 words. 

Subjects: Nephrology

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