Transplantation proceedings · 2018
Abnormalities in Protocol Graft Kidney Biopsy 6 Months Posttransplantation in a Tertiary Care Center Hospital of Nepal.
СтатьяНаблюдательное исследованиеНазвание и аннотация: Перевод в очереди
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Shrestha M, Singh D, Sigdel M R, Kafle M P
Аннотация
BACKGROUND: Increasing graft survival is the prime focus of every transplantation program. Detection of subclinical abnormalities with the help of protocol renal graft biopsies performed at predetermined intervals after transplantation has been one of the approaches. The objective was to study the abnormalities in protocol renal graft biopsy specimens at 6 months posttransplantation.
METHODS: This was a hospital-based observational descriptive study. It included the recipients who underwent kidney transplantation between October 2014 and September 2015. The recipients were followed up postoperatively on an outpatient basis, as per the institution protocol. At 6 months posttransplantation, protocol graft biopsy was performed in all patients with normal functioning allograft without proteinuria after obtaining informed written consent.
RESULTS: A total of 57 patients with chronic kidney disease underwent renal transplantation during the study period. Protocol biopsy was performed in 47 recipients. Subclinical rejection was found in 4 (8.5%) recipients. Two recipients had significant tubulitis and interstitial inflammation. One of them showed features of Banff Type IA cellular rejection (t2, i2) and another showed Banff Type IB cellular rejection (t3, i2). Biopsy specimen of 1 recipient showed significant glomerulitis and peritubular capillaritis (g3, ptc1). Another recipient showed significant peritubular capillaritis (ptc2) with C4d positivity. IgA nephropathy was present in 6 (12.8%) recipients. BK virus nephropathy was found in 2 (4.3%) recipients.
CONCLUSION: This study demonstrates that abnormal histologic findings occur in protocol graft biopsy specimens at 6 months post renal transplantation in patients without any clinical or laboratory abnormalities.
METHODS: This was a hospital-based observational descriptive study. It included the recipients who underwent kidney transplantation between October 2014 and September 2015. The recipients were followed up postoperatively on an outpatient basis, as per the institution protocol. At 6 months posttransplantation, protocol graft biopsy was performed in all patients with normal functioning allograft without proteinuria after obtaining informed written consent.
RESULTS: A total of 57 patients with chronic kidney disease underwent renal transplantation during the study period. Protocol biopsy was performed in 47 recipients. Subclinical rejection was found in 4 (8.5%) recipients. Two recipients had significant tubulitis and interstitial inflammation. One of them showed features of Banff Type IA cellular rejection (t2, i2) and another showed Banff Type IB cellular rejection (t3, i2). Biopsy specimen of 1 recipient showed significant glomerulitis and peritubular capillaritis (g3, ptc1). Another recipient showed significant peritubular capillaritis (ptc2) with C4d positivity. IgA nephropathy was present in 6 (12.8%) recipients. BK virus nephropathy was found in 2 (4.3%) recipients.
CONCLUSION: This study demonstrates that abnormal histologic findings occur in protocol graft biopsy specimens at 6 months post renal transplantation in patients without any clinical or laboratory abnormalities.