[Clinical characteristics and risk factors of recurrent acute infectious epiglottitis in adults].

Objective:The purpose of this study was to investigate the clinical characteristics and risk factors of adult recurrent acute infectious epiglottitis. Methods:All patients diagnosed with acute infectious epiglottitis hospitalized in the Department of Otolaryngology, Hai'an People's Hospital, Nantong University from January 2012 to December 2019 were included. Results:The recurrence rate of 331 adult patients with acute infectious epiglottitis was 4.2% （14/331）, including 10 cases of once recurrence and 4 cases of twice recurrence. The onset time of all patients was within 48 hours. The most common main complaint in the recurrent group was sore throat （42.9%）, and dysphagia in the non-recurrent group （42.0%）. The frequency of drinking in recurrent group was higher than that in non-recurrent group （P=0.009）. The incidence of chronic obstructive pulmoriary disease（COPD）, diabetes, cyst and gastroesophageal reflux disease/laryngopharyngeal reflux disease in recurrent group was higher than that in non-recurrent group. There was no significant difference in other clinical features, treatment and prognosis between the two groups except tongue tonsil infection under laryngoscope. Multivariate analysis showed that frequent drinking （more than twice a week）, COPD, diabetes, cysts and lingual tonsillar infection were the risk factors for recurrence. Conclusion:Adult acute infectious epiglottitis has a proportion of single or multiple recurrence. Frequent drinking, COPD, diabetes, cyst and lingual tonsillar infection are the risk factors for the recurrence.