Renal transplantation and pregnancy

Area of Science:

• Nephrology
• Immunology
• Reproductive Medicine

Background:

• Renal transplantation is a life-saving procedure for end-stage renal disease.
• Pregnancy following transplantation presents unique challenges for both mother and child.
• Graft survival and maternal health are critical considerations in managing these pregnancies.

Purpose of the Study:

• To evaluate the outcomes of pregnancies in women who have undergone renal transplantation.
• To assess the impact of immunosuppressive therapy on fetal development and neonatal health.
• To provide recommendations regarding pregnancy in renal transplant recipients.

Main Methods:

• Retrospective analysis of data from 79 pregnancies in 64 women post-renal transplantation.
• Inclusion of 11 pregnancies directly observed by the authors.
• Review of graft function, maternal outcomes, and neonatal development, including congenital defects and chromosomal aberrations.

Main Results:

• Graft dysfunction or failure occurred in approximately 20% of pregnancies.
• Graft issues indirectly contributed to maternal mortality in four cases within one year post-delivery.
• Neonatal complications included a 50% incidence of prematurity, adrenal hypofunction/hypoplasia in seven neonates, and lymphatic hypofunction/hypoplasia.
• Congenital defects were rare (one neonate, one fetus), but chromosomal aberrations were noted in five neonates.

Conclusions:

• Pregnancy in renal transplant recipients is generally discouraged due to significant risks.
• Exceptions may be considered for recipients with closely matched sibling grafts, long-term stable renal function, and minimal immunosuppression.
• Careful patient selection and management are crucial for optimizing outcomes in carefully selected cases.