Predialysis hypotension is not a predictor for mortality in long-term hemodialysis patients: insight from a single-center observational study
Received 28 April 2016
Accepted for publication 23 June 2016
Published 24 August 2016 Volume 2016:12 Pages 1285—1292
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Hoa Le
Peer reviewer comments 2
Editor who approved publication: Professor Deyun Wang
Wen-Hung Huang,1,2 Ching-Wei Hsu,1,2 Ching-Chih Hu,3 Tzung-Hai Yen,1,2 Cheng-Hao Weng1,2
1Department of Nephrology, Division of Clinical Toxicology, Chang Gung Memorial Hospital, Linkou Medical Center, Gueishan, Taiwan, Republic of China; 2Department of Medicine, Chang Gung University College of Medicine, Taoyuan, Taiwan, Republic of China; 3Department of Hepatogastroenterology and Liver Research Unit, Chang Gung Memorial Hospital, Keelung, Taiwan, Republic of China
Introduction: Predialysis hypotension has been noted to be a predictor of mortality in hemodialysis (HD) patients. Previous studies evaluating the impact of predialysis hypotension on the mortality of HD patients did not exclude patients with diabetes mellitus (DM) or cardiovascular disease.
Methods: Eight hundred and sixty-six patients on maintenance HD were recruited. Clinical parameters were recorded and subjected to the analysis of predictors of predialysis hypotension and mortality.
Results: Multivariate logistic regression analyses indicated that DM (odds ratio [OR]: 0.439, P=0.002), hypertension history (OR: 0.634, P=0.022), Kt/V Daugirdas (OR: 2.545, P=0.001), anuria (OR: 2.313, P=0.002), serum phosphate (OR: 0.833, P=0.010), and serum triglyceride (OR: 1.002, P=0.012) were associated with predialysis hypotension. Multivariate Cox regression analysis showed that age (P<0.001), male sex (P=0.029), anuria (P=0.004), and DM (P=0.011) were associated with higher probability of 24- and 36-month mortality. Predialysis hypotension was not associated with higher probability of 12-, 24-, and 36-month mortality.
Conclusion: Predialysis hypotension is not a predictor of 12-, 24-, and 36-month survival in patients without DM and with higher dialysis adequacy.
Keywords: predialysis hypotension, hemodialysis, mortality
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