Dialysis, transplantation, and pregnancy

Area of Science:

• Nephrology
• Reproductive Medicine
• Obstetrics

Background:

• Women on dialysis often experience infertility, yet pregnancy risk requires attention.
• Pregnancy in women with kidney disease is complex, carrying significant risks and low success rates.
• Renal transplantation can restore reproductive function, necessitating thorough pre-pregnancy counseling.

Purpose of the Study:

• To analyze pregnancy outcomes in women with kidney disease, including those on dialysis and post-transplant.
• To identify risks and complications associated with pregnancy in this patient population.
• To provide insights for improved pre-pregnancy assessment and management.

Main Methods:

• Survey of 2,309 pregnancies in 1,594 women with kidney disease.
• Analysis of pregnancy complications, maternal outcomes, and neonatal health.
• Review of renal function changes and delivery methods.

Main Results:

• Live birth rate was 19% excluding therapeutic abortions; 92% success for pregnancies continuing past the first trimester.
• Maternal complications included transient renal function decline (15% permanent impairment), hypertension/preeclampsia (30%), preterm delivery (50%), and intrauterine growth retardation (25%).
• Neonatal complications were observed, but developmental abnormalities were not frequent; long-term infant data are encouraging.

Conclusions:

• Pregnancy in women with kidney disease is associated with substantial maternal and fetal risks.
• Careful pre-pregnancy counseling and ongoing management are essential.
• Further research is needed to optimize pre-pregnancy assessment, understand gestational renal dysfunction, and evaluate immunosuppression effects.