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Review
. 2021 Mar;21(2):158-165.
doi: 10.1111/psyg.12648. Epub 2021 Jan 7.

Postoperative infectious complications in elderly patients after elective surgery in China: results of a 7-day cohort study from the International Surgical Outcomes Study

Yan Wang  1 , Hui Li  1 , Hui Ye  1 , Guohao Xie  1 , Shuijing Wu  1 , Shengwen Song  1 , Baoli Cheng  1 , Xiangming Fang  1 ; On behalf the International Surgical Outcomes Study (ISOS) group in China
Affiliations
Review

Postoperative infectious complications in elderly patients after elective surgery in China: results of a 7-day cohort study from the International Surgical Outcomes Study

Yan Wang et al. Psychogeriatrics. 2021 Mar.

Abstract

Aim: Despite initiatives to increase elderly patients' access to surgical treatments, the prevalence and impact of postoperative infectious complications (PICs) in elderly patients in China are poorly described. The aim of our study was to describe PICs and associated mortality in elderly patients undertaking elective surgery in China.

Methods: We analyzed data about elderly patients from China during the International Surgical Outcomes Study (ISOS), a 7-day prospective cohort study of outcomes after elective surgery in in-patient adults. All elderly patients (age ≥60 years) from 28 hospitals in China included in the ISOS study were included in this study as well. A review of 2014 elderly patients who underwent elective surgery in April 2014 was conducted.

Results: Of 2014 elderly patients, 209 (10.4%) developed at least one postoperative complication. Infectious complications were most frequent, affecting 154 patients (7.6%); there was one death, or 0.6% 30-day mortality, which was a significantly higher rate than among patients without PICs (0%). The most frequent infectious complication was superficial surgical-site infection (3.3%). The length of hospital stay was longer in elderly patients with PICs than in those without PICs. Moreover, a total of 142 elderly patients (7.1%) were routinely sent to critical care after surgery, of whom 97 (68.3%) developed PICs. Compared to elderly patients admitted to a standard ward, those admitted to critical care immediately after surgery had a higher postoperative complication rate and critical care admission rate to treat complications.

Conclusions: The present prospective, multicentre study found that 7.6% of elderly patients in China had PICs after elective surgery that could prolong hospital stay and increase 30-day mortality. The clinical effectiveness of admission to critical care after surgery on elderly patients is not identified. Initiatives to increase elderly patients' access to surgical interventions should also enhance safe perioperative care to reduce PICs in China.

Keywords: ISOS; elderly patients; elective surgery; postoperative infectious complications.

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