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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A systematic review and meta-analysis of acute kidney injury in the intensive care units of developed and developing countries

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Author(s):
Ferreira Melo, Fernando de Assis [1] ; Macedo, Etienne [2] ; Fonseca Bezerra, Ana Caroline [1] ; Lopes de Melo, Waledya Araujo [1] ; Mehta, Ravindra L. [2] ; Burdmann, Emmanuel de Almeida [3] ; Trevisan Zanetta, Dirce Maria [4]
Total Authors: 7
Affiliation:
[1] Acre Fed Univ, Div Urol, Rio Branco, Acre - Brazil
[2] Univ Calif San Diego UCSD, Dept Med, San Diego, CA - USA
[3] Univ Sao Paulo, Div Nephrol, Med Sch, LIM 12, Sao Paulo, SP - Brazil
[4] Univ Sao Paulo, Dept Epidemiol, Sch Publ Hlth, Sao Paulo, SP - Brazil
Total Affiliations: 4
Document type: Review article
Source: PLoS One; v. 15, n. 1 JAN 17 2020.
Web of Science Citations: 4
Abstract

Objectives Although the majority of the global population lives in developing countries, most of the epidemiological data related to intensive care unit (ICU) acute kidney injury (AKI) comes from developed countries. This systematic review aims to ascertain the methodology of studies on ICU AKI patients in developing and developed countries, to determine whether epidemiological comparisons between these two settings are possible, and to present a summary estimate of AKI incidence. Methods A systematic review of published studies reporting AKI in intensive care units (2005-2015) identified in PubMed, LILACS, and IBECs databases was conducted. We compared developed and developing countries by evaluating study methodology, AKI reference serum creatinine definitions, population characteristics, AKI incidence and mortality. AKI incidence was calculated with a random-effects model. Results Ninety-two studies were included, one of which reported data from both country categories: 60 from developed countries (1,057,332 patients) and 33 from developing countries (34,539 patients). In 78% of the studies, AKI was defined by the RIFLE, AKIN or KDIGO criteria. Oliguria had 11 different definitions and reference creatinine 23 different values. For the meta-analysis, 38 studies from developed and 18 from developing countries were selected, with similar AKI incidence: 39.3% and 35.1%, respectively. The need for dialysis, length of ICU stay and mortality were higher in developing countries. Conclusion Although patient characteristics and AKI incidence were similar in developed and developing countries, main outcomes were worse in developing country studies. There are significant caveats when comparing AKI epidemiology in developed and developing countries, including lack of standardization of reference serum creatinine, oliguria and the timeframe for AKI assessment. Larger, prospective, multicenter studies from developing countries are urgently needed to capture AKI data from the overall population without ICU access. (AU)

FAPESP's process: 14/19286-4 - Individuals with high risk for acute kidney injury development in clinical relevant situations: a prospective study on epidemiological, diagnostic and prognostic aspects
Grantee:Emmanuel de Almeida Burdmann
Support Opportunities: Research Projects - Thematic Grants