Regarding drain removal timing in head and neck reconstruction, each institution applies its criteria, and a clear consensus has not been established. This pre-post study aims to identify risk factors for surgical site infection (SSI) after reconstructive surgical procedure for head and neck cancer, specifically examining the influence of drain removal timing.
Patients and Methods:
A cohort of 220 patients undergoing reconstructive surgical procedure was analyzed. Patients had closed suction drains removed on post-operative day (POD) 2 or POD3. The primary endpoint was SSI incidence within 30 days after operation. Secondary endpoints included the incidence of hematoma and lymphorrhea within 30 days after operation and drain tip culture results. Statistical analyses were performed using Fisher exact test and logistic regression models.
Results:
SSIs occurred in 14.5% of patients, with no significant difference between the POD2 (14.6%) and POD3 (14.5%) groups. No substantial differences were found for hematoma and lymphorrhea. The positive rate of drain tip cultures was significantly greater in the POD3 group (38.2%) compared with the POD2 group (18.0%). Multi-variable analysis showed no correlation between SSI and POD3 drain removal (odds ratio [OR], 0.728; p = 0.471). However, significant SSI risk factors included oral cavity lesions (OR, 3.510; p = 0.003) and ampicillin prophylaxis (OR, 5.266; p < 0.001).
Conclusions:
Oral cavity lesions and ampicillin prophylaxis were substantial SSI risk factors in reconstructive surgical procedure for head and neck cancer. However, drain removal timing did not significantly affect SSI incidence or other complications. Considering benefits such as shorter hospital stays and less chance of retrograde bacterial invasion, removing drains on POD2 is preferable compared with removal on POD3. Further research is needed to refine prophylactic protocols and enhance patient outcomes.
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