• Internal medicine · Jan 2024

    Case Reports

    Severe Anemia from Multiple Gastric Hyperplastic Polyps in a Hemodialysis Patient after Long-term Use of a Proton-pump Inhibitor.

    • Shiyo Ikeda, Toshiya Takahashi, Toshitsugu Tandoh, Kaori Ushiyama, and Yujiro Kida.
    • Department of Nephrology, Takashimadaira Chūō General Hospital, Japan.
    • Intern. Med. 2024 Jan 1; 63 (5): 649657649-657.

    AbstractA 90-year-old man on maintenance hemodialysis was admitted due to severe symptomatic anemia. Biopsies under esophagogastroduodenoscopy demonstrated that the cause of anemia was intermittent blood oozing from multiple gastric hyperplastic polyps. Even after successful eradication of Helicobacter pylori, he showed hypergastrinemia (480 pg/mL) owing to esomeprazole (proton-pump inhibitor) therapy for the past 4.5 years to treat reflux esophagitis. Seven months after we switched esomeprazole to famotidine (H2-receptor antagonist), those gastric polyps and anemia were remarkably ameliorated with lowered gastrin levels. This case indicates that long-term use of a proton-pump inhibitor triggers chronic hypergastrinemia, leading to gastric hyperplastic polyps and subsequent severe anemia.

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