OBJECTIVE To study the short term outcome of modified Semont maneuver for posterior semicircular canal benign paroxysmal positional vertigo (PSC-BPPV).METHODS A total of 93 patients with PSC-BPPV were diagnosed using the methods of Dix-Hallpike test and Roll test from Oct. 2015 to April 2016. All the patients were treated with the modified Semont maneuver. The 3 and 7 day outcome were recorded. RESULTS During the treatment, some patients had different degrees of vertigo and nausea, but all the patients completed the treatment successfully. The number of cured, improved and ineffective patients were 72, 16 and 5 respectively with a cure rate of 77.4% and total effective rate of 94.6% at 3 days follow up, and 84, 5 and 4 respectively with a cure rate of 90.3% and total effective rate of 95.7% at 7 days follow up.CONCLUSION Modified Semont maneuver is an effective method for management of posterior semicircular canal BPPV.

BACKGROUND:Treatment methods for high anal fistula include fistula removal, incision and thread drawing, selective mucosal flap displacement, fibrin glue closure, fistula liagtion between sphincter, most of which show many advantages, including long-term healing, a low success rate, high recurrence rate, and high postoperative complication rate.
OBJECTIVE:To observe the clinical effect of acelular extracelular matrix in the treatment of high anal fistula, and to explore a minimaly invasive treatment for high anal fistula.
METHODS: Totaly 100 cases of high anal fistula were randomly divided into treatment group and control group, 50 cases in each group. Treatment group were treated with alogenic acelular extracelular matrix, and control group were treated with traditional low incision with high thread-drawing. Then, we observed and compared the operation time, bleeding volume, postoperative pain score (visual analog scale score), postoperative pain
duration, anal incontinence severity score (Wexner score), wound healing time, one-stage success rate, cure rate, recurrence rate.
RESULTS AND CONCLUSION: Compared with the control group, the treatment group showed lower scores in the operation time, bleeding volume, wound healing time, visual analog scale score, postoperative pain duration, and anal incontinence severity score (P < 0.05), but higher scores in one-stage success rate and cure rate (P < 0.05). There was no difference in the recurrence rate between the two groups. These findings indicate that the alogenic acelular extracelular matrix for treatment of high anal fistula exhibits smal trauma, quick recovery,
short course of treatment, high cure rate and has no damage to the anal function and appearance.

Objective:To study the relationship between adenoid hypertrophy, tonsillar hypertrophy and overweight or even obesity in children.Methods:A total of 799 children aged 2 to 12 years with tonsillar and adenoid hypertrophy from January 2015 to December 2019 in the Department of Otolaryngology Head Neck Surgery, the Sixth Medical Center of Chinese PLA General Hospital were selected. The body mass index (BMI) was calculated according to the height and weight measured routinely at the time of admission. The difference of BMI between children and normal children of the same age, and the correlation between adenoid, tonsil hypertrophy and obesity were compared. Chi-square test was used to compare the surgical children′s BMI of different genders with normal children of the same age, and Spearman rank correlation was used to analyze the correlation between BMI and adenoid and tonsil hypertrophy.Results:The Spearman correlation coefficient between tonsil hypertrophy and BMI was 0.078, P=0.077, the Spearman correlation coefficient between adenoid hypertrophy and BMI was -0.058( P=0.100). χ 2 test showed that the proportion of overweight and obesity in school-age children (7~12 years old) was significantly higher than that in preschool children (2~6 years old), and the difference was statistically significant (χ 2male=22.386, Pmale<0.001, χ 2female=4.478, Pfemale<0.001). Conclusion:There is no obvious correlation between adenoid hypertrophy, tonsil hypertrophy and overweight or obesity in children, but the probability of children overweight or obesity increases with age, and the proportion of obesity in children aged 7-12 years is higher.

Objective:To investigate the prognosis and influencing factors of endoscopic surgery for early glottic carcinoma.Methods:In this retrospective study, we applied the Cox proportional hazards regression model and the random survival forest model to analyze the clinical characteristics of 385 patients [362 males, 23 females, age ranging from 33 to 91 years (62.0±9.6)] who visited the Sixth Medical Center of the General Hospital of the People's Liberation Army from January 2009, to December 2022 and diagnosed with early glottic carcinoma, encompassing variables such as age, gender, T stage, surgical approach, pathological typing, etc. The primary evaluation indicators were overall survival(OS) and disease-free survival rates (DFS). The follow-up duration ranged from 30 to 5,557 days (with a median follow-up time of 1,596 days).Results:After a three-year follow-up, the OS rate for the 385 patients was 95.83%, while the DSF rate was 82.98%. The Cox proportional hazards regression analysis revealed age ( HR=2.35, 95% CI: 1.75 to 3.15, P<0.001) and T staging ( HR=1.59, 95% CI: 1.13 to 2.23, P=0.019) as predominant factors affecting the OS and DFS. The random survival forest model identified poor tumor differentiation, and high expression of P53 and Ki-67 as predictors of inferior prognosis. Conclusion:Endoscopic surgery for early glottic carcinoma yields favorable short-term OS and reduces short-term recurrence rates, with T-stage emerging as a pivotal factor influencing recurrence. Tumors with poor differentiation and elevated expression of P53 may be indicative of an increased risk of recurrence.