Influence of environmental temperature and heatwaves on surgical site infection after hip and knee arthroplasty: a nationwide study

Previous studies reported higher incidence of surgical site infection (SSI) after procedures performed in summer or with high temperatures. However, no study used detailed climate data to assess this risk after hip and knee arthroplasty, and no study specifically investigated the role of heatwaves....

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Bibliographic Details
Published in:The Journal of hospital infection 2023-05, Vol.135, p.125-131
Main Authors: Damonti, L., Atkinson, A., Fontannaz, L., Burnham, J.P., Jent, P., Troillet, N., Widmer, A., Marschall, J.
Format: Article
Language:English
Subjects:
Arthroplasty, Replacement, Hip - adverse effects
Arthroplasty, Replacement, Knee - adverse effects
Heatwave
Hip
Hospitals
Humans
Knee
Season
Surgical site infection
Surgical Wound Infection - epidemiology
Surgical Wound Infection - etiology
Temperature
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Summary:Previous studies reported higher incidence of surgical site infection (SSI) after procedures performed in summer or with high temperatures. However, no study used detailed climate data to assess this risk after hip and knee arthroplasty, and no study specifically investigated the role of heatwaves. To assess the impact of higher environmental temperatures and heatwaves on SSI rates after hip and knee arthroplasty. Data on hip and knee arthroplasty procedures performed between January 2013 and September 2019 in hospitals participating in the Swiss SSI surveillance were linked to climate data extracted from weather stations located in their vicinity. The association between temperature, heatwaves and SSI was studied using mixed effects logistic regression models fitted at the patient level. Poisson mixed models were fitted for both calendar year and month of the year to investigate the SSI incidence trajectory over time. We included 116,981 procedures performed in 122 hospitals. Significantly higher SSI rates were observed for procedures performed in the summertime (incidence rate ratio 1.39, 95% CI (1.20–1.60), P
ISSN:0195-6701
1532-2939
DOI:10.1016/j.jhin.2023.03.014