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Meta-Analysis
. 2019;49(6):497-506.
doi: 10.1159/000500877. Epub 2019 May 24.

The Prevalence of Intradialytic Hypotension in Patients on Conventional Hemodialysis: A Systematic Review with Meta-Analysis

Johanna Kuipers  1 , Loes M Verboom  2 , Karin J R Ipema  2 , Wolter Paans  3 , Wim P Krijnen  3 , Carlo A J M Gaillard  4 , Ralf Westerhuis  5 , Casper F M Franssen  2
Affiliations
Meta-Analysis

The Prevalence of Intradialytic Hypotension in Patients on Conventional Hemodialysis: A Systematic Review with Meta-Analysis

Johanna Kuipers et al. Am J Nephrol. 2019.

Abstract

Background: Intradialytic hypotension (IDH) is considered to be a frequent complication of hemodialysis (HD) and is associated with symptom burden, increased incidence of access failure, cardiovascular events, and higher mortality. This systematic literature review aims to analyse studies that investigated the prevalence of IDH. A complicating factor herein is that many different definitions of IDH are used in literature.

Methods: A systematic literature search from databases, Medline, Cinahl, EMBASE, and the Cochrane library to identify studies reporting on the actual prevalence of IDH was conducted. Studies were categorized by the type of definition used for the prevalence of IDH. A meta-analysis of the prevalence of IDH was performed.

Results: In a meta-analysis comprising 4 studies including 1,694 patients and 4 studies including 13,189 patients, the prevalence of HD sessions complicated by IDH was 10.1 and 11.6% for the European Best Practice Guideline (EBPG) definition and the Nadir <90 definition, respectively. The proportion of patients with frequent IDH could not reliably be established because of the wide range in cutoff values that were used to identify patients with frequent IDH. There was a large variety in the prevalence of symptoms and interventions. Major risk factors associated with IDH across studies were diabetes, a higher interdialytic weight gain, female gender, and lower body weight.

Conclusion: Our meta-analysis suggests that the prevalence of IDH is lower than 12% for both the EBPG and the Nadir <90 definition which is much lower than stated in most reviews.

Keywords: Dialysis; Intradialytic hypotension; Prevalence.

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Figures

Fig. 1
Fig. 1
Selection of articles for the systematic review on the prevalence of IDH. HD, hemodialysis; IDH, intradialytic hypotension
Fig. 2
Fig. 2
a Prevalence of IDH defined according to the EBPG definition on session level with a meta-analysis. b Prevalence of IDH defined according to the SBP nadir <90 mm Hg definition on session level with meta-analysis. HD, hemodialysis; IDH, intradialytic hypotension.
Fig. 3
Fig. 3
a Proportion of patients with frequent IDH as defined according to the EBPG definition. b Proportion of patients with frequent IDH as defined according to the SBP nadir <90 mm Hg definition. HD, hemodialysis; IDH, intradialytic hypotension.
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