BK virus infection in a renal transplant Saudi child

Area of Science:

• Virology
• Immunology
• Nephrology

Background:

• BK virus (BKV) establishes latency in the urinary tract post-childhood infection.
• Understanding BKV pathogenesis in immunocompromised individuals, particularly transplant recipients, remains critical.
• Renal transplantation involves significant immunosuppression, increasing susceptibility to opportunistic viral infections.

Observation:

• A 12-year-old Saudi boy, post-renal transplant, presented with renal impairment.
• The patient developed a BK virus infection, diagnosed and managed at the hospital.
• This case highlights BKV's clinical significance in pediatric renal transplant recipients.

Findings:

• BK virus infection was confirmed in the patient's urine and blood via polymerase chain reaction (PCR).
• This represents the first report of BKV detection using PCR in a Saudi pediatric post-transplant patient.
• Cytology can detect BKV in urine decoy cells, while PCR offers early detection in blood and urine.

Implications:

• Early BKV DNA testing in urine and blood serves as a vital screening tool.
• Reducing immunosuppression in BKV-infected patients can potentially improve renal allograft survival.
• This case underscores the need for vigilant BKV monitoring in pediatric renal transplant populations.