Grant S Lipman1, Brian J Krabak, Sean D Rundell, Katherine M Shea, Natalie Badowski, Colin Little. 1. *Department of Emergency Medicine, Stanford University School of Medicine, Stanford, California; †Department of Rehabilitation, Orthopedics, and Sports Medicine, University of Washington, Seattle, Washington; and ‡Stanford-Kaiser Emergency Medicine Residency, Stanford University School of Medicine, Stanford, California.
Abstract
OBJECTIVE: Determine prevalence, incidence, and risk factors of acute kidney injury (AKI) during multistage ultramarathons. DESIGN: Prospective observational cohort study. SETTING: Jordanian Desert 2012; Atacama Desert, Chile 2012 and 2013; and Gobi Desert 2013 RacingThePlanet 250 km, 6-stage, ultramarathons. PARTICIPANTS: One hundred twenty-eight participants (384 measurements) from the Jordan (25, 19.5%), Gobi (35, 27.3%), 2012 Atacama (24, 18.8%), and 2013 Atacama (44, 34.4%) races. INTERVENTIONS: Blood samples and weights were gathered and analyzed immediately after stage 1 (40 km), 3 (120 km), and 5 (225 km). MAIN OUTCOME MEASURES: Changes in serum creatinine (Cr), cumulative incidence, and prevalence of AKI were calculated for each stage with "risk of injury" defined as 1.5 × baseline Cr and "injury" defined as 2 × Cr. RESULTS: Cumulative incidence of AKI was 41.4%. Stage 1 had 56 (43.8%) with risk of AKI and 24 (18.8%) with injury; in stage 3, 61 (47.7%) were at risk, 41 (32%) had injury; in stage 5, 62 (48.4%) runners were at risk and 36 (28.1%) had injury. Acute kidney injury was significantly associated with females [odds ratio (OR), 4.64; 95% confidence interval (CI), 2.07-10.37; P < 0.001], lower pack weight (OR, 0.71; 95% CI, 0.56-0.91; P < 0.007), and percentage weight loss (OR, 0.87; 95% CI, 0.78-0.97; P < 0.015). Lowest quintile of finishers was less likely to develop AKI (OR, 0.18; 95% CI, 0.04-0.78; P < 0.022). CONCLUSIONS: Prevalence of AKI was 63%-78% during multistage ultramarathons. Female sex, lower pack weight, and greater weight loss were associated with renal impairment.
OBJECTIVE: Determine prevalence, incidence, and risk factors of acute kidney injury (AKI) during multistage ultramarathons. DESIGN: Prospective observational cohort study. SETTING: Jordanian Desert 2012; Atacama Desert, Chile 2012 and 2013; and Gobi Desert 2013 RacingThePlanet 250 km, 6-stage, ultramarathons. PARTICIPANTS: One hundred twenty-eight participants (384 measurements) from the Jordan (25, 19.5%), Gobi (35, 27.3%), 2012 Atacama (24, 18.8%), and 2013 Atacama (44, 34.4%) races. INTERVENTIONS: Blood samples and weights were gathered and analyzed immediately after stage 1 (40 km), 3 (120 km), and 5 (225 km). MAIN OUTCOME MEASURES: Changes in serum creatinine (Cr), cumulative incidence, and prevalence of AKI were calculated for each stage with "risk of injury" defined as 1.5 × baseline Cr and "injury" defined as 2 × Cr. RESULTS: Cumulative incidence of AKI was 41.4%. Stage 1 had 56 (43.8%) with risk of AKI and 24 (18.8%) with injury; in stage 3, 61 (47.7%) were at risk, 41 (32%) had injury; in stage 5, 62 (48.4%) runners were at risk and 36 (28.1%) had injury. Acute kidney injury was significantly associated with females [odds ratio (OR), 4.64; 95% confidence interval (CI), 2.07-10.37; P < 0.001], lower pack weight (OR, 0.71; 95% CI, 0.56-0.91; P < 0.007), and percentage weight loss (OR, 0.87; 95% CI, 0.78-0.97; P < 0.015). Lowest quintile of finishers was less likely to develop AKI (OR, 0.18; 95% CI, 0.04-0.78; P < 0.022). CONCLUSIONS: Prevalence of AKI was 63%-78% during multistage ultramarathons. Female sex, lower pack weight, and greater weight loss were associated with renal impairment.
Authors: Adriano César Carneiro Loureiro; Gabriella Fontenele Nocrato; André Luis Lima Correia; Robson Salviano de Matos; Júlio César Chaves Nunes Filho; Elisabeth De Francesco Daher; Flávio Henrique Macedo Pinto; Ariclécio Cunha de Oliveira; Vania Marilande Ceccatto; Rodrigo Soares Fortunato; Denise Pires de Carvalho Journal: Front Physiol Date: 2022-03-17 Impact factor: 4.566
Authors: Johannes Burtscher; Paul-Emmanuel Vanderriele; Matthieu Legrand; Hans-Georg Predel; Josef Niebauer; James H O'Keefe; Grégoire P Millet; Martin Burtscher Journal: Sports Med Date: 2022-07-18 Impact factor: 11.928
Authors: Rodrigo Assunção Oliveira; Ana Paula Rennó Sierra; Marino Benetti; Nabil Ghorayeb; Carlos A Sierra; Maria Augusta Peduti Dal Molin Kiss; Maria Fernanda Cury-Boaventura Journal: Oxid Med Cell Longev Date: 2017-12-21 Impact factor: 6.543
Authors: Lexa Nescolarde; Emma Roca; Paco Bogónez-Franco; José Hernández-Hermoso; Antoni Bayes-Genis; Jordi Ara Journal: Front Physiol Date: 2020-05-06 Impact factor: 4.566
Authors: Khrystyna O Semen; Antje R Weseler; Marcel J W Janssen; Marie-José Drittij-Reijnders; Jos L M L le Noble; Aalt Bast Journal: Nutrients Date: 2020-06-01 Impact factor: 5.717
Authors: Khrystyna O Semen; Rick H A van der Doelen; Monique van der Lugt; Davy G H A van Dam; Jürgen Reimer; Frank R M Stassen; Loes Janssen; Paddy K C Janssen; Marcel J W Janssen; Aalt Bast; Jos L M L le Noble Journal: Scand J Med Sci Sports Date: 2020-08-13 Impact factor: 4.221