Assessment of the Elderly Adult Patients with Deep Neck Infection: A Retrospective Study.

Background: Deep neck infection (DNI) is a potentially lethal infectious disease affecting middle-aged adults and can compromise the airway. There are limited data on the prognosis and outcomes of elderly (aged > 65 years) DNI patients, who tend to be immunocompromised. This study analyzed the clinical characteristics of elderly and adult (aged 18-65 years) DNI patients. Methods: Between November 2016 and November 2022, 398 patients with DNIs, including 113 elderly patients, were admitted to our hospital and enrolled in this study. The relevant clinical variables were investigated and compared. Results: The elderly DNI patients had longer hospital stays ( P  < .001), higher C-reactive protein levels ( P  = .021), higher blood sugar levels ( P  = .012), and a higher likelihood of diabetes mellitus ( P  = .025) than the adult patients. The higher blood sugar level is an independent risk factor for elderly (odds ratio = 1.005, 95% confidence intervals 1.002-1.008, P  < .001). Moreover, the rates of intubation to protect the airway ( P  = .005) and surgical incision and drainage (I&D; P  = .010) were higher in the elderly group. However, there were no group differences in pathogen distributions. Conclusion: The elderly DNI patients in this study had a more severe disease course, and poorer prognosis than the adult patients, as well as higher rates of intubation and I&D. However, the pathogen distributions did not differ significantly between the groups. Prompt intervention and treatment are important for elderly DNI patients.