Is HMPV infection risky for organ transplant patients?

Question

Hello doctor,

I am managing an HMPV (human metapneumovirus) outbreak at our pediatric organ transplant unit, where eight post-transplant patients have been affected, including three recent heart recipients. My seven-year-old son, who is two months post-liver transplant, developed rapid breathing and a high fever yesterday. His tacrolimus levels are fluctuating wildly, and he needs more oxygen support. What is most concerning is his liver function; his ALT (alanine aminotransferase) levels suddenly spiked above 1000. Two other patients developed complete heart block and required temporary pacing. The transplant team is divided on whether to reduce immunosuppression. His Prograf levels are now toxic, even after adjusting the dose. Should we risk organ rejection by lowering his anti-rejection medications? Could the virus be triggering acute cellular rejection? I have also noticed new-onset ascites. Could this be a sign of graft failure?

Kindly help.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

With HMPV (human metapneumovirus), it usually worsens the underlying medical condition, so we need to act quickly.

Recommended Treatment Plan:

Give oxygen through a facemask.
Administer Ribavirin if available.
Use a nebulizer with Salbutamol to help improve lung function.
Yes, HMPV could cause cellular rejection, so it is important to treat it as soon as possible.
Continue routine treatment as before.
Adjust the anti-rejection medications: if they are toxic, reduce the dose; if he can tolerate it, give the normal dose.
Monitor his vital signs closely.
Perform a chest CT (computed tomography) scan.
Everyone around him should wear a facemask.
Ensure regular hand hygiene and proper cough etiquette.
Ascites could also indicate graft failure, so an abdominal CT scan should be performed.
Check his serum albumin levels. If it is low, give an albumin infusion.
He will need a lot of supportive care.

I hope you are satisfied with my answer. For further queries, you can consult me at iCliniq.

Thank you.