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A large registry study tracking over 2,600 pregnancies in kidney transplant recipients found that while most children developed normally, these pregnancies carry serious risks. Hypertension and preeclampsia were the top complications, and more than half of births were preterm or by C-section. Experts say coordinated, multidisciplinary care is essential for the best outcomes.
The Transplant Pregnancy Registry International (TPRI) has been tracking pregnancy outcomes in transplant recipients since 1991, and its latest data — presented at ASN Kidney Week — offers the most comprehensive look yet at what happens when kidney transplant recipients become pregnant. Researchers reviewed 2,659 pregnancies across 1,471 recipients, finding that while 76% of children showed normal developmental outcomes after an average 14.5 years of follow-up, the path there is far from straightforward.
The pregnancies were high-risk by nearly every measure. Nearly a third were unplanned, and complications were common — including hypertension, preeclampsia, and exposure to immunosuppressants that can harm fetal development. Graft outcomes were also a concern, with a small but notable share of recipients experiencing rejection or graft loss within three years of delivery.
By the Numbers:
Why it matters: These findings underscore that pregnancy in kidney transplant recipients requires careful planning, preconception counseling, and a full team of specialists — from transplant physicians to high-risk OBs — to navigate the unique risks involved.
