Objective To investigate the relationship of resonant frequency and low frequency conductive hearing loss. Methods Eighty- four participants were included, and tested by gold standard and resonant frequency respectively. Receiver operator characteristic (ROC) curve was used to explore the most appropriate cutoff point for diagnosing low frequency conductive hearing loss and Levene’s test was used to test the difference of the low frequency conductive hearing loss and normal hearing groups. Results The resonant frequencies of low conductive frequency hearing loss and normal hearing groups were different. The optimum cutoff points of resonant frequency were 850Hz and 1 050Hz. The resonant frequency range from 850Hz to 1 050Hz was considered normal. The test was powerful when the resonant frequency was lower than 850Hz. The test was powerless when the resonant frequency was higher than 1 050Hz. Conclusions Conductive hearing loss could be predicted from resonant frequency when it is lower than 850Hz. The test is powerless when the resonant frequency is higher than 1 050Hz. The resonant frequency could be affected by many factors, so ENT (ear, nose and throat) doctors and audiologists have to be careful about how to explain the results when the resonant frequency is higher than 1 050Hz.
【摘要】 目的 了解慢性化膿性中耳炎患者的聽力學檢查特點。 方法 回顧性分析2005年8月—2008年12月間就診的382例確診為慢性化膿性中耳炎患者的聽力學檢查資料。 結果 慢性化膿性中耳炎中男性和單耳患者居多，任何年齡均可發病，以中度傳導性聽力損失為主，鼓室圖形態各異，耳道容積變大。 結論 慢性化膿性中耳炎是常見的耳科疾病，需及時治療，聽力學檢查對于指導治療方案和評估預后意義重大。【Abstract】 Objective To learn the audiological characteristics of chronic suppurative otitis media patients. Methods We retrospectively analyzed the audiologic data of 382 patients diagnosed with chronic suppurative otitis media treated in our hospital from August 2005 to December 2008. Results The number of male chronic suppurative otitis media patients was more than female patients, and single ear infections are more than infections of both ears. The onset of the disease could be at any age. Most of the patients had a moderate conductive hearing loss. All kinds of tympanogram were found,and ear canal volume of the patients was enlarged. Conclusion Chronic suppurative otitis media is a common disease of the ear, which needs timely treatment, and audiological tests are important in guiding treatment plans and assessing prognosis.
Objective To investigate the predominant symptoms reported by patients after pulmonary tuberculosis surgery and compare the differences between these symptoms and those perceived by healthcare providers. Methods From July 15, 2025, to January 31, 2026, semi-structured interviews were conducted with postoperative patients who underwent pulmonary tuberculosis surgery in the Department of Thoracic Surgery at Chengdu Public Health Clinical Medical Center to obtain their postoperative symptoms. During the same period, a questionnaire survey was used to collect symptoms perceived by 29 healthcare providers in the Department of Thoracic Surgery regarding the postoperative symptoms of pulmonary tuberculosis patients during hospitalization. The differences between the top five symptoms reported by patients and those perceived by healthcare providers were compared. Results Among the 52 enrolled patients, the median age was 50.50 (32.00, 58.00) years, with 16 (30.8%) female patients and 36 (69.2%) male patients. A total of 29 symptoms were reported by the patients, including 24 physiological symptoms, 2 psychological symptoms, and 3 symptoms related to daily functioning. The top 5 symptoms by frequency of reporting were: chest pain (269 reports, 52 patients, 100.0%), cough (210 reports, 50 patients, 96.2%), sleep disturbance (117 reports, 42 patients, 80.8%), difficulty walking (60 reports, 26 patients, 50.0%), and shortness of breath (58 reports, 33 patients, 63.5%). A total of 23 symptoms were perceived by 29 healthcare providers, with the top five by frequency of reporting being: chest pain (27 reports), cough (22 reports), shortness of breath (17 reports), sweating/night sweats (16 reports), and fever (11 reports). Chest pain, cough, and shortness of breath were the major symptoms reported by both patients and healthcare providers. However, sleep disturbance and difficulty walking, which were of greater concern to patients, were not identified by healthcare providers as important postoperative adverse experiences. The reporting rates of the 23 symptoms perceived by healthcare providers showed a positive and statistically significant correlation between the patient and healthcare provider groups (Kendall’s Taub=0.546, P<0.001). Conclusion There is a certain degree of consensus between healthcare providers and patients regarding the overall postoperative symptoms of pulmonary tuberculosis, but some discrepancies exist in their perceptions of the major symptoms. Healthcare providers need to pay more attention to the recovery of patients' daily functioning.
