Clinical characteristics of postoperative pneumonia patients undergoing different types of surgeries and distribution of onset time
10.11816/cn.ni.2025-251017
- VernacularTitle:不同系统手术后肺炎的临床特征及其发生的时间分布
- Author:
Ran XIN
1
;
Lei QIAO
;
Shuangfeng SUN
;
Yingying PAN
;
Juanjuan KONG
;
Hongyu WANG
;
Ying YAN
Author Information
1. 首都医科大学附属北京中医医院医院感染管理办公室,北京 100010
- Publication Type:Journal Article
- Keywords:
Surgery;
Postoperative pneumonia;
Time window;
Multicenter
- From:
Chinese Journal of Nosocomiology
2025;35(20):3074-3078
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To explore the time windows for postoperative pneumonia in patients undergoing different surgeries,providing evidence-based references for optimizing infection monitoring and prevention and control strategies.METHODS Sociodemographic characteristics,clinical information and surgical details of 263 patients with postoperative pneumonia from four different types of medical institutions between Jan.2019 and Dec.2024 were retrospectively collected.The time windows for postoperative pneumonia in patients undergoing different surgeries were analyzed.RESULTS There were no statistically significant differences in the time windows for post-operative pneumonia among groups in terms of sociodemographic factors and underlying diseases.However,sta-tistically significant differences were observed in the time windows for postoperative pneumonia based on surgery type,incision type,surgical approach and surgery duration(P＜0.05).The average time for the onset of postop-erative pneumonia in 263 patients was 2.00(1.00,7.00)days.The postoperative time windows varied for sur-geries involving different systems.The peak incidence occurred on day 0(16 cases)and day 1(17 cases)af-ter neurological surgery,while the peak incidence for digestive system and orthopedic surgeries was on day 1.The time span for the onset of pneumonia after skin surgeries was wider(0-53 days postoperatively)without a clear peak.In addition,33.33％of cardiovascular system surgery cases developed pneumonia 10 days postoperatively.There were also significant time differences in the diagnostic elements of postoperative pneumonia,with fever and abnormal white blood cell counts appearing earlier(median appearance time length:4.00 days)than lung imaging changes(median appearance time length:7.00 days).CONCLUSIONS This study demonstrates significant time differences in the on-set of postoperative pneumonia and confirms the significant spatiotemporal heterogeneity in the diagnostic elements of postoperative pneumonia.These findings provide a quantitative basis for developing dynamic,surgery-type-spe-cific monitoring protocols and prevention and control measures for postoperative pneumonia.
