Objective:To analyze the factors influencing the outcome of uvulopalatopharyngoplasty in positional obstructive sleep apnea（POSA） and non-positional OSA（NPOSA） patients, and to explore the differences between the two groups. Methods:The data of 101 patients with obstructive sleep apnea who received treatment from November 2020 to November 2023 were retrospectively analyzed. Among them, 45 positional patients（POSA group） and 56 non-positional patients（NPOSA group）, who underwent overnight polysomnography were included. The upper airway（UA） anatomy was evaluated by three-dimensional computer tomography（3D-CT）. All patients received revised uvulopalatopharyngoplasty with uvula preservation and were followed using polysomnography for at least three months postoperatively. Results:The overall effective rate was 55.45%. The surgical success rate in POSA undergoing UPPP was higher than NPOSA（POSA 30/45, 66.7% versus NPOSA 26/56, 46.4%, P=0.042）. The H-UPPP effect of POSA was negatively correlated with the minimum lateral airway of the Velopharyngeal airway（r=-0.505, P<0.001）, the minimum lateral airway of the glossopharyngeal airway（r=-0.474, P=0.001） and the minimum cross-sectional area（r=-0.394, P=0.007）. Logistic analysis showed that minimal lateral airway of the glossopharynxgeum（mLAT）（OR 0.873; 95%CI 0.798-0.955, P=0.003） was a significant predictor for surgical outcomes among POSA patients. In NPOSA, age（OR 0.936; 95%CI 0.879-0.998, P=0.042） was a significant predictor for surgical outcomes. Conclusion:The effect of H-UPPP was higher in POSA than in NPOSA. The width of glossopharyngeal mLAT was an important predictor of POSA efficacy. Age was a predictor of NPOSA efficacy.
目的：分析影响体位依赖性（positional obstructive sleep apnea, POSA）和非体位依赖性OSA（non-positional OSA，NPOSA）患者悬雍垂腭咽成形术疗效的因素，并探讨二者影响因素之间的差异。 方法：回顾性分析2020年11月-2023年11月在浙江大学医学院附属第二医院耳鼻咽喉科接受治疗并追踪随访的101例OSA患者的临床资料，其中45例POSA患者，56例NPOSA患者，均行夜间睡眠呼吸监测及三维计算机断层扫描（3D-CT）评估上气道解剖结构。患者均接受保留悬雍垂的改良腭咽成形术（han-uvulopalatopharyngoplasty, H-UPPP），术后3个月随访。 结果：手术总体有效率为55.45%，接受H-UPPP的POSA手术成功率（30/45，66.7%）高于NPOSA（26/56，46.4%），2组比较差异有统计学意义（P=0.042）。POSA的H-UPPP疗效与腭咽部气道最小左右径（r=-0.505，P<0.001）、舌咽部气道最小左右径（mLAT）（r=-0.474，P=0.001）和最小横截面积（r=-0.394，P=0.007）呈负相关。Logistic分析显示，舌咽部mLAT是POSA患者手术疗效的显著预测因子（OR 0.873；95%CI 0.798～0.955，P=0.003）。年龄是NPOSA患者手术疗效的显著预测因子（OR 0.936；95%CI 0.879～0.998，P=0.042）。 结论：POSA患者H-UPPP手术疗效高于NPOSA。舌咽部mLAT是影响POSA疗效的重要预测因素。年龄是影响NPOSA疗效的预测因素。.

BACKGROUND: Traditional uvulectomy is widely practiced in Africa especially in sub-Saharan countries including Ethiopia. Limited Studies conducted in different times and areas of the world have shown that the prevalence of uvulectomy and its associated factors are varied from country to country. There is limited evidence to determine the prevalence and reasons of malpractice in Ethiopia. Therefore, this study aimed to assess the prevalence of traditional uvulectomy, and its associated factors among parents who had children aged less than 6 months.
METHODS: A community-based cross-sectional mixed study design was conducted among 630 participants selected by a systematic sampling technique. Data were collected using a pretested interviewer-administered questionnaire. The collected data were entered into Epi-data, and analyzed by using STATA version 14software. Descriptive statistics were computed and presented using tables, figures and texts. Factors associated with the prevalence of uvulectomy were selected for multiple logistic regressions at the probability value (p-value) of less than 0.2 in the X2- analysis. Statistically significant associated factors were identified at the probability value (p-value) less than 0.05 and adjusted OR (AOR) with a 95% CI. A total of 10 individual depth interviewees and 5 key informants were included using purposive sampling techniques. For the qualitative study, and thematic content analysis was employed to analyze the data, which were transcribed, translated, coded, screened, thematized, analyzed, synthesized, and finally supplemented the quantitative finding.
RESULTS: The prevalence of traditional uvulectomy was 84.60% (CI: 81.77%n-87.42%). Being rural residence (adjusted OR = 2.08, CI = 1.06-4.12), mothers aged 30 to 34 years (adjusted OR = 2.9, CI = 1.28-6.60), having no antenatal care visit (adjusted OR = 3.91, CI = 1.33-11.47), having no bad obstetric history (adjusted OR = 2.11, CI = 1.12-3.98), having no postnatal care visit (adjusted OR = 3.88, CI = 1.36-11.12) and mothers\' poor attitude (adjusted OR = 3.32, CI = 2.01-5.47) were statistically significant associated factors of traditional uvulectomy. Seeking traditional uvulectomy, lack of information and third-party pressure were the main themes of the qualitative study that support the findings of the quantitative study.
CONCLUSIONS: The prevalence of traditional uvulectomy was high. Being rural residents, mothers aged 30 to 34 years, having no antenatal care visit, having no complications of obstetric history, having no postnatal care visit and mothers with poor attitude were statistically significant associated factors of traditional uvulectomy. Lack of information about uvulectomy and third-party pressure was the reason for seeking traditional uvulectomy.

Oral submucous fibrosis (OSF) is a chronic, progressive condition affecting the oral mucosa associated with areca nut consumption. It leads to restricted tongue movement, loss of papillae, blanching and stiffening of the mucosa, difficulty in opening the mouth, and challenges in eating due to inflammation and fibrosis. This report presents a rare case of oropharyngeal stenosis secondary to OSF in a 43-year-old male with a history of chewing betel nut. A surgical procedure similar to Uvulopalatopharyngoplasty was performed to excise the submucous oropharyngeal stenosis and to reconstruct the uvula, palatoglossal arch, and palatopharyngeal arch. At 8 years postoperatively, the patient exhibited a normal mouth opening and oropharyngeal aperture.

BACKGROUND: Submucous cleft palate (SMCP) is a congenital anomaly characterized by the presence of Calnan\'s triad. However, in clinical practice, it is common for individuals to exhibit one or two anatomical abnormalities within the triad. Furthermore, the definition of SMCP has been diverse and ambiguous in literature. Therefore, this study aimed to analyze the correlation between anatomical abnormalities and development of velopharyngeal insufficiency (VPI).
METHODS: We conducted a retrospective analysis of 99 patients referred to our clinic for speech issues or anatomical abnormalities identified during routine oral examinations from January 2012 to June 2023. A single surgeon performed all physical examinations. We evaluated the presence of bony notch, zona pellucida, and bifid uvula, assigned a score to each abnormality, and analyzed their correlation with VPI. The correlation of each of the abnormalities with VPI development was examined, along with the relationship between the number of abnormalities and VPI.
RESULTS: Among the 99 patients, 27 were diagnosed with VPI. Only the bony notch had a significant correlation with VPI development. The incidence of VPI tended to increase with the presence of more anatomical abnormalities. VPI occurred in approximately 40% of patients exhibiting all three anatomical abnormalities.
CONCLUSIONS: The study findings highlight the importance of meticulous intraoral examinations in patients with SMCP and careful monitoring of patients with a bony notch or two or more anatomical abnormalities.

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Hair tourniquet syndrome is a rare condition that can cause ischemia and necrosis secondary to hair fibers constricting a patient\'s appendages. Typically, the syndrome affects patients aged two to six months. Hair tourniquet syndrome often involves the toes, fingers, or genitalia, and it has been rarely reported to have oropharyngeal manifestations. Accurate and timely treatment of this syndrome is imperative to save the involved appendage. We discuss a case of a six-month-old female who presented to the emergency room (ER) with increased agitation and was found to have hair tourniquet syndrome of the uvula, requiring the removal of the foreign body in the operating room (OR).

BACKGROUND: Traditional uvulectomy is a harmful procedure in which the entire or a portion of the uvula is removed by traditional practitioners. It causes complications like septicemia, transmission of infectious diseases, anemia, excessive bleeding, infection, tetanus, meningitis, and death. A summary of national data was lacking, thus, the study aimed to determine the pooled national burden and determinants of traditional uvulectomy in Ethiopia.
METHODS: Studies were retrieved from PubMed, EMBASE, CINHAL (EBSCO), Google Scholar, Web of Sciences, MEDLINE, Cochrane Library, SCOPUS, and Google databases. Finally, 19 studies were included. The methodological quality of the included studies was assessed using the JBI checklist. Data synthesis and statistical analysis were conducted using STATA Version 17 software. Heterogeneity and publication bias were assessed. Forest plots were used to present the pooled and summarized with random-effects meta-analysis models.
RESULTS: Totally 19 articles with 23,559 study participants were included in this systematic review and meta-analysis. The overall pooled prevalence of uvulectomy in Ethiopia was 44 % (95 % CI: 31%-57 %). The highest prevalence was observed among studies conducted in the Tigray region (63 % (95 % CI: 34%-94 %), between the year 2011-2014 (58 % (95 % CI: 29%-87 %)) and, community setting (57 % (95 % CI: 36%-78 %). Mothers\' educational status (AOR: 1.66, 95 % CI: 1.31-2.01) and residence (AOR: 1.70, 95 % CI: 1.16-2.23) were found to be significantly associated with traditional uvulectomy in Ethiopia. Frequently cited reasons for traditional uvulectomy were to prevent swelling, pus, and rupture of the uvula, for better care, prevention of sore throats and coughs, religion, and culture.
CONCLUSIONS: The pooled result revealed that almost half of children are still subjected to traditional uvulectomy in Ethiopia. There is a need to intensify awareness creation campaigns against the practice by giving special attention to rural residents and uneducated ones.

OBJECTIVE: Obstructive sleep apnea (OSA) is characterized by complete or partial cessation of breathing during sleep. The tongue is suggested as a possible anatomical site causing airway obstruction. However, the role of other pharyngeal structures in the development of OSA remains unclear. We designed a study using both the apnea-hypopnea index (AHI) and the oxygen saturation measurements to assess the severity of OSA. We aimed to identify critical anatomical structures of the upper airway that correlate with the severity of OSA and to evaluate the utility of magnetic resonance imaging (MRI) markers to detect possible OSA in patients without overt symptoms.
METHODS: The study included participants referred to the neurology outpatient clinic from the check-up unit. Participants were grouped as controls, mild, moderate, or severe OSA according to the AHI. A cranial MRI with a field of view (FOV) encompassing the upper airway structures was obtained from all participants. The areas of the tongue and the uvula were measured on the sagittal images by drawing the boundaries of the tissues manually. The posterior air space (PAS) area was evaluated from regions of interest in five parallel planes.
RESULTS: Of 105 participants, 30 were controls, 27 had mild, 25 had moderate, and 23 had severe OSA. The moderate and severe OSA groups did not differ in oxygen saturation levels during sleep. Therefore, patients with moderate and severe OSA were combined into one group (moderate/severe OSA). The area of the tongue was significantly larger in the moderate/severe OSA group compared to the control group. Both the tongue and the uvula areas showed a significant positive correlation with the AHI.
CONCLUSIONS: Our findings suggest that the tongue and uvula have prominent roles in the severity of OSAS. It may be useful to measure these structures with MRI to screen for at-risk individuals without overt OSA symptoms.