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- Daichi Hayashi, Tsutomu Nishida, Naoto Osugi, Yasuo Kusunoki, Satoru Okabe, Yoshifumi Fujii, Dai Nakamatsu, Kengo Matsumoto, Masashi Yamamoto, and Koji Fukui.
- Department of Gastroenterology, Toyonaka Municipal Hospital, Japan.
- Intern. Med. 2024 Apr 15; 63 (8): 108110851081-1085.
AbstractThis report describes the case of a 76-year-old man with ulcerative colitis who developed interstitial nephritis after starting 5-Aminosalicylic acid (5-ASA) therapy. The patient experienced an initial improvement in symptoms, but developed fatigue, anorexia, and severe renal dysfunction 2.5 months later. Renal biopsy confirmed drug-induced interstitial nephritis, and conservative treatment with fluid replacement and the discontinuation of 5-ASA improved the patient's condition. Clinicians should monitor patients receiving 5-ASA therapy for potential adverse effects, particularly renal injury, and promptly investigate symptoms of renal dysfunction. Early recognition and discontinuation of the offending agent may prevent further damage and improve patient outcomes.
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