Abstract
Background
It is controversial whether treatment with an angiotensin II receptor blocker (ARB) or a calcium channel blocker (CCB) improves prognosis of hemodialysis (HD) patients.
Methods
This study was designed as a multicenter prospective cohort study. HD patients (n = 1071) were enrolled from 22 institutes in January 2009 and followed up for 3 years. Patients with missing data, kidney transplantation or retraction of consent during the follow-up period (n = 204) were excluded, and 867 patients contributed to analysis of mortality. Propensity score (PS) for use of ARB and that for CCB was calculated using a multiple logistic regression model.
Results
ARB and CCB were prescribed in 45.6 and 54.7 % of patients at enrollment. During the 3-year follow-up period, all-cause mortality and cardiovascular mortality rates were 18.8 and 5.1 %, respectively. Kaplan–Meier curves showed that all-cause and cardiovascular mortality rates were lower in the ARB group than in the non-ARB group, though the mortality rates were similar in the CCB group and non-CCB group. In PS-stratified Cox regression analysis, ARB treatment was associated with 34 and 45 % reduction of all-cause death and cardiovascular death, respectively. In PS matching analysis, ARB treatment was associated with a significant reduction (46 % reduction) in the risk of all-cause death. A significant impact of CCB treatment on all-cause or cardiovascular mortality was not detected in PS analysis.
Conclusions
The use of an ARB, but not a CCB, is associated with reduced all-cause and cardiovascular mortalities in patients on HD.
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Acknowledgments
BOREAS HD study Investigators include Masatada Fukuoka, Makoto Hagiwara, Koichi Hasegawa, Manabu Hayashi, Toshiya Ishiguro, Row Ishimoto, Yosuke Itoh, Toshihiro Iwamoto, Hironori Kobayashi, Hiroshi Kobayashi, Atsushi Konno, Setsuko Kuroda, Tomoaki Matsumoto, Tamaki Matsumoto, Hiroya Murakami, Takahiro Nishitani, Fumio Obara, Toru Ohtomo, Yusuke Okazaki, Norie Saito, Takashi Sakamoto, Niro Sawai, Katsuo Suzuki, Yoshitoki Takagawa, Hideki Takizawa, Kazushi Tanaka, Nobuhiko Togashi, Takaaki Torii, Daisuke Yoshida, Mayumi Yoshihara, and Atsushi Wada.
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The members of the “BOREAS HD study Investigators” are given in the Acknowledgments.
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Tanaka, M., Yamashita, T., Koyama, M. et al. Impact of use of angiotensin II receptor blocker on all-cause mortality in hemodialysis patients: prospective cohort study using a propensity-score analysis. Clin Exp Nephrol 20, 469–478 (2016). https://doi.org/10.1007/s10157-015-1182-3
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DOI: https://doi.org/10.1007/s10157-015-1182-3