Kidney Biopsy Findings and Clinical Outcomes of US Veterans with Inflammatory Bowel Disease

Introduction: Patients with inflammatory bowel disease (IBD; ulcerative colitis [UC] and Crohn’s disease [CD]) may have unique patterns of kidney injury related to their underlying or coexisting disease or to medications. We present the kidney biopsy findings and clinical outcomes of veterans with U...

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Main Authors: Prasanth Ravipati, Scott Reule, Alyssa Bren, Lihong Bu, Byron P Vaughn, Patrick H. Nachman
Format: Article
Language:English
Published: Karger Publishers 2023-09-01
Series:Glomerular Diseases
Subjects:
Online Access:https://beta.karger.com/Article/FullText/534062
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author Prasanth Ravipati
Scott Reule
Alyssa Bren
Lihong Bu
Byron P Vaughn
Patrick H. Nachman
author_facet Prasanth Ravipati
Scott Reule
Alyssa Bren
Lihong Bu
Byron P Vaughn
Patrick H. Nachman
author_sort Prasanth Ravipati
collection DOAJ
description Introduction: Patients with inflammatory bowel disease (IBD; ulcerative colitis [UC] and Crohn’s disease [CD]) may have unique patterns of kidney injury related to their underlying or coexisting disease or to medications. We present the kidney biopsy findings and clinical outcomes of veterans with UC or CD from the US Department of Veteran’s Affairs (VA) health system. Methods: Histopathologic and clinical data were extracted by retrospective review of the VA electronic health record of patients with IBD and a kidney biopsy between 2000 and 2018. Incident end-stage kidney disease (ESKD) was defined as requirement of kidney replacement therapy. Statistical analyses were performed using SAS. Results: A total of 140 patients (UC: 91 and CD: 49) underwent kidney biopsy. The three most common diagnoses were IgA nephropathy (17.1%), diabetic nephropathy (14.3%), and acute interstitial nephritis (9.3%). Significant interstitial fibrosis, tubular atrophy, and arteriosclerosis were present in 45% of biopsies. Twenty-six percent of patients with UC and 20% of those with CD progressed to ESKD, with a mean time from kidney biopsy of 3.1 and 1.9 years, respectively. Forty-five percent of patients with UC and 34% of those with CD died, with a mean time from kidney biopsy of 4.3 and 4.6 years, respectively. Conclusion: Among US veterans with IBD who underwent a kidney biopsy, IgA nephropathy, diabetic nephropathy, and interstitial nephritis were among the most common findings. Additionally, features of advanced kidney disease with rapid clinical progression to ESKD or death were observed. These findings suggest a delay and possibly a low rate of diagnosis.
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spelling doaj.art-270a9542ba7c4ec7b08583ae7b3775b62023-10-26T06:38:33ZengKarger PublishersGlomerular Diseases2673-36332023-09-011110.1159/000534062534062Kidney Biopsy Findings and Clinical Outcomes of US Veterans with Inflammatory Bowel DiseasePrasanth Ravipati0Scott Reule1Alyssa Bren2Lihong Bu3Byron P Vaughn4Patrick H. Nachman5Division of Nephrology, Department of Medicine, University of Nebraska Medical Center, Omaha, NE, USADivision of Medicine, Minneapolis Veterans Affairs Health Care System, Minneapolis, MN, USAUniversity of Minnesota Medical School, Minneapolis, MN, USADepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USADivision of Gastroenterology and Hepatology, Department of Medicine, University of Minnesota, Minneapolis, MN, USADivision of Nephrology and Hypertension, Department of Medicine, University of Minnesota, Minneapolis, MN, USAIntroduction: Patients with inflammatory bowel disease (IBD; ulcerative colitis [UC] and Crohn’s disease [CD]) may have unique patterns of kidney injury related to their underlying or coexisting disease or to medications. We present the kidney biopsy findings and clinical outcomes of veterans with UC or CD from the US Department of Veteran’s Affairs (VA) health system. Methods: Histopathologic and clinical data were extracted by retrospective review of the VA electronic health record of patients with IBD and a kidney biopsy between 2000 and 2018. Incident end-stage kidney disease (ESKD) was defined as requirement of kidney replacement therapy. Statistical analyses were performed using SAS. Results: A total of 140 patients (UC: 91 and CD: 49) underwent kidney biopsy. The three most common diagnoses were IgA nephropathy (17.1%), diabetic nephropathy (14.3%), and acute interstitial nephritis (9.3%). Significant interstitial fibrosis, tubular atrophy, and arteriosclerosis were present in 45% of biopsies. Twenty-six percent of patients with UC and 20% of those with CD progressed to ESKD, with a mean time from kidney biopsy of 3.1 and 1.9 years, respectively. Forty-five percent of patients with UC and 34% of those with CD died, with a mean time from kidney biopsy of 4.3 and 4.6 years, respectively. Conclusion: Among US veterans with IBD who underwent a kidney biopsy, IgA nephropathy, diabetic nephropathy, and interstitial nephritis were among the most common findings. Additionally, features of advanced kidney disease with rapid clinical progression to ESKD or death were observed. These findings suggest a delay and possibly a low rate of diagnosis.https://beta.karger.com/Article/FullText/534062inflammatory bowel diseaseimmunoglobin a nephropathyhistopathology
spellingShingle Prasanth Ravipati
Scott Reule
Alyssa Bren
Lihong Bu
Byron P Vaughn
Patrick H. Nachman
Kidney Biopsy Findings and Clinical Outcomes of US Veterans with Inflammatory Bowel Disease
Glomerular Diseases
inflammatory bowel disease
immunoglobin a nephropathy
histopathology
title Kidney Biopsy Findings and Clinical Outcomes of US Veterans with Inflammatory Bowel Disease
title_full Kidney Biopsy Findings and Clinical Outcomes of US Veterans with Inflammatory Bowel Disease
title_fullStr Kidney Biopsy Findings and Clinical Outcomes of US Veterans with Inflammatory Bowel Disease
title_full_unstemmed Kidney Biopsy Findings and Clinical Outcomes of US Veterans with Inflammatory Bowel Disease
title_short Kidney Biopsy Findings and Clinical Outcomes of US Veterans with Inflammatory Bowel Disease
title_sort kidney biopsy findings and clinical outcomes of us veterans with inflammatory bowel disease
topic inflammatory bowel disease
immunoglobin a nephropathy
histopathology
url https://beta.karger.com/Article/FullText/534062
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