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. 2020 Mar 3:2020:7206171.
doi: 10.1155/2020/7206171. eCollection 2020.

Hemodialysis Increases the Risk of Lower Gastrointestinal Bleeding and Angiodysplasia Bleeding: A Nationwide Population Study

Tzung-Jiun Tsai  1   2 , Wen-Chi Chen  1   2 , Yu-Tung Huang  3 , Yi-Hsin Yang  4 , I-Che Feng  5 , Wen-Chieh Wu  6 , Huang-Ming Hu  7 , Deng-Chyang Wu  7 , Ping-I Hsu  8
Affiliations

Hemodialysis Increases the Risk of Lower Gastrointestinal Bleeding and Angiodysplasia Bleeding: A Nationwide Population Study

Tzung-Jiun Tsai et al. Gastroenterol Res Pract. .

Abstract

Background: Patients with chronic kidney disease (CKD) with or without hemodialysis were considered to have bleeding tendency and higher risk for gastrointestinal (GI) bleeding. Previous studies had documented that hemodialysis may increase the gastroduodenal ulcer bleeding. Few studies evaluated the relationship between CKD and lower GI bleeding. Materials and Methods. An observational cohort study design was conducted. The end-stage renal disease (ESRD) patients receiving regular hemodialysis (dialysis CKD), CKD patients without dialysis (dialysis-free CKD), and controls were selected from 1 million randomly sampled subjects in the National Health Insurance Research Database of Taiwan. These three group subjects were matched by age, sex, comorbidity, and enrollment time in a 1 : 2 : 2 ratio. The Cox proportional hazard regression models were used to identify the potential risk factors for lower gastrointestinal bleeding.

Results: Dialysis CKD patients (n = 574) had a higher incidence of lower GI bleeding than dialysis-free CKD patients (n = 574) had a higher incidence of lower GI bleeding than dialysis-free CKD patients (n = 574) had a higher incidence of lower GI bleeding than dialysis-free CKD patients (P < 0.001). Multivariate analysis showed that extreme old age (age ≥ 85), male gender, dialysis-free CKD, and dialysis CKD were independent factors of lower GI bleeding. Additionally, dialysis CKD patients also had a higher incidence of angiodysplasia bleeding compared to dialysis-free CKD patients and control subjects (1.1% vs. 0.1% and 0.1%, respectively; both P < 0.001). Multivariate analysis showed that extreme old age (age ≥ 85), male gender, dialysis-free CKD, and dialysis CKD were independent factors of lower GI bleeding. Additionally, dialysis CKD patients also had a higher incidence of angiodysplasia bleeding compared to dialysis-free CKD patients and control subjects (1.1% vs. 0.1% and 0.1%, respectively; both.

Conclusion: Hemodialysis may have higher risk of lower GI bleeding and angiodysplasia bleeding.

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Conflict of interest statement

The authors declare that there is no conflict of interest regarding the publication of this paper.

Figures

Figure 1
Figure 1
Flow chart of selection of patients with chronic kidney disease and matched control from the National Health Insurance Research Database of Taiwan.
Figure 2
Figure 2
Cumulative incidence of lower gastrointestinal bleeding in dialysis CKD, dialysis-free CKD, and control groups.
See this image and copyright information in PMC

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