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Published on: February 16, 2024
Prognostic impact of infectious complications after curative gastric cancer surgery
Won Ho Han1, Yoon Jung Oh1, Bang Wool Eom1
1Center for Gastric Cancer, National Cancer Center, Goyang, 410-769, South Korea.
Introduction:
There have been few studies about the effect of infectious complications on recurrence or long-term survival outcome after curative gastric cancer surgery in large populations. This study was conducted to investigate the impact of infectious complications on long-term survival after curative gastrectomy in high volume center.
Method:
From January 2002 to December 2012, patients who underwent curative gastrectomy were enrolled. Infectious complications were defined as wound infection, intra-abdominal infection or postoperative pneumonia. Five-year overall survival was compared between two groups and followed by multivariable analysis using a Cox proportional hazards model.
Result:
Of 6585 patients who underwent curative gastrectomy, 413 (6.2%) had infectious complications after curative gastrectomy. The five-year overall survival rate was 86.0% in non-complication patients and 74.1% in infectious complications patients (P < 0.001). In univariate analysis, Age over 70 years, male sex, higher ASA score, total or proximal gastrectomy, advanced stage and infectious complication had statistically worse survival. A Cox proportional hazards model indicated that the infectious complication was independent prognostic factor (HR = 1.478, CI 95% 1.242-1.757 p < 0.001) as well as age over 70 years (HR = 2.434, CI 95% 2.168-2.734 p < 0.001), male sex (HR = 1.153, CI 95% 1.022-1.302 p = 0.014), higher ASA score (p < 0.001) and advanced Stage (p < 0.001). Local recurrence (P = 0.044), LN recurrence (P = 0.038) and hematologic recurrence (P = 0.033) were significantly associated with infectious complications.
Conclusion:
Postoperative infectious complication was an independent prognostic factor for five-year overall survival after curative gastrectomy as well as known factors. A significant association between infectious complications and recurrence were also noted. The surgeon should try to prevent the infectious complications in gastric cancer surgery to improve the long term survival.
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