Oral oncology · 2019
Postoperative wound infections, neutrophil-to-lymphocyte ratio, and cancer recurrence in patients with oral cavity cancer undergoing surgical resection.
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de Almeida John R, Yao Christopher M K L, Ziai Hedyeh, Staibano Phillip, Huang Shao Hui, Hosni Ali, Hope Andrew, Bratman Scott V, Monteiro Eric, Gilbert Ralph W, Brown Dale H, Gullane Patrick J, Irish Jonathan C, Su Jie, Xu Wei, Goldstein David P
Аннотация
BACKGROUND: It is unclear whether postoperative wound infections after head and neck cancer surgery are associated with cancer progression.
METHODS: Patients undergoing surgery for oral cancer from 1998 to 2011 were reviewed. Univariable analyses and multivariable were performed. Propensity scores were used to create matched cohorts for infection and non-infection groups. Neutrophil-to-lymphocyte ratios (NLR) were determined prior to surgery and at the time of infection.
RESULTS: Of 551 patients with oral cancer treated with surgery, 98 developed wound infections (18%). Tumor factors associated with wound infections included higher T and N category, extranodal extension, depth of invasion, lymphovascular and perineural invasion (p < 0.02 for all). On univariable analysis, wound infection was a predictor for recurrence free survival (p < 0.001), locoregional control (p = 0.01), and distant control (p < 0.001). Wound infection was not a predictor of overall survival (p = 0.88), recurrence free survival (p = 0.17), locoregional control (p = 0.79) or distant control (p = 0.18) on multivariable analysis. Using a propensity score matched cohort of 83 patients with and without infection, wound infection was not associated with recurrence free survival (p = 0.21), overall survival (p = 0.71), and locoregional control (p = 0.84), although there was a trend towards increased distant metastases (p = 0.10). Patients with wound infection had a greater preoperative NLR as well as a greater rise in the NLR after surgery, but these were not associated with survival or recurrence.
CONCLUSIONS: Patients with wound infections have more adverse pathologic features. However, wound infection was not associated with poorer cancer outcomes although a trend towards increased distant metastases should be investigated.
METHODS: Patients undergoing surgery for oral cancer from 1998 to 2011 were reviewed. Univariable analyses and multivariable were performed. Propensity scores were used to create matched cohorts for infection and non-infection groups. Neutrophil-to-lymphocyte ratios (NLR) were determined prior to surgery and at the time of infection.
RESULTS: Of 551 patients with oral cancer treated with surgery, 98 developed wound infections (18%). Tumor factors associated with wound infections included higher T and N category, extranodal extension, depth of invasion, lymphovascular and perineural invasion (p < 0.02 for all). On univariable analysis, wound infection was a predictor for recurrence free survival (p < 0.001), locoregional control (p = 0.01), and distant control (p < 0.001). Wound infection was not a predictor of overall survival (p = 0.88), recurrence free survival (p = 0.17), locoregional control (p = 0.79) or distant control (p = 0.18) on multivariable analysis. Using a propensity score matched cohort of 83 patients with and without infection, wound infection was not associated with recurrence free survival (p = 0.21), overall survival (p = 0.71), and locoregional control (p = 0.84), although there was a trend towards increased distant metastases (p = 0.10). Patients with wound infection had a greater preoperative NLR as well as a greater rise in the NLR after surgery, but these were not associated with survival or recurrence.
CONCLUSIONS: Patients with wound infections have more adverse pathologic features. However, wound infection was not associated with poorer cancer outcomes although a trend towards increased distant metastases should be investigated.