Study elaborates clinical significance of microvascular inflammation after kidney transplantation
Investigators recently uncovered key insights into newly defined rejection entities in kidney transplantation that may offer improved patient risk categorization post-transplant. The research will be presented at ASN Kidney Week 2024 October 23-27.
Kidney transplant rejection continues to threaten the long-term success of kidney transplants, with microvascular inflammation (inflammation within capillaries) playing a pivotal role in graft failure. Due to its complex nature, this inflammation poses a major challenge in clinical practice. In response, the international Banff classification-the global standard for diagnosing transplant rejection-has redefined antibody-mediated rejection diagnostics by introducing two new categories of microvascular inflammation: mild microvascular inflammation with probable antibody-mediated rejection and microvascular inflammation in the absence of antibody-mediated responses.
In a landmark study analyzing more than 16,000 biopsies from almost 7,000 kidney transplant recipients, researchers found that many cases initially considered as non-rejection were reclassified into the newly defined categories of microvascular inflammation. Importantly, reclassified patients with microvascular inflammation in the absence of antibody-mediated responses displayed an increased risk of graft failure compared with those without signs of rejection, underscoring the importance of this new classification.
“Recognizing these phenotypes could improve risk stratification and support more personalized management for kidney transplant patients,” explains first author, Aurélie Sannier, pathologist and researcher at the Paris Institute for Transplantation and Organ Regeneration. “We encourage large studies in other organ transplants where microvascular inflammation is also a critical feature of antibody-mediated rejection.”
Reference:
The clinical significance of microvascular inflammation after kidney transplantation, American Society of Nephrology, Meeting: ASN Kidney Week 2024.
Disclaimer: This website is primarily for healthcare professionals. The content here does not replace medical advice and should not be used as medical, diagnostic, endorsement, treatment, or prescription advice. Medical science evolves rapidly, and we strive to keep our information current. If you find any discrepancies, please contact us at corrections@medicaldialogues.in. Read our Correction Policy here. Nothing here should be used as a substitute for medical advice, diagnosis, or treatment. We do not endorse any healthcare advice that contradicts a physician's guidance. Use of this site is subject to our Terms of Use, Privacy Policy, and Advertisement Policy. For more details, read our Full Disclaimer here.
NOTE: Join us in combating medical misinformation. If you encounter a questionable health, medical, or medical education claim, email us at factcheck@medicaldialogues.in for evaluation.