■Atticoantral,别名不安全类型的CSOM会影响中耳裂的后上部分,并且经常伴有并发症和骨侵蚀。这项研究旨在将高分辨率计算机断层扫描(HRCT)颞骨与不安全类型的CSOM患者的术中发现相关联。
■这项前瞻性研究包括50名患者(28名男性:22名女性;平均年龄24±14岁),这些患者在临床上被怀疑患有不安全的CSOM。所有患者均接受颞骨HRCT和随后的外科手术。将术中和组织病理学结果与HRCT结果进行比较。描述性统计,灵敏度,特异性,计算HRCT的阳性预测值和阴性预测值。进行学生t检验和卡方检验。
■在50名患者中,左,对,42%(21/50)出现双耳受累,38%(19/50),和20%(10/50)的患者,分别。耳痛是最常见的症状(100%),其次是耳痛(66%)。眩晕(16%),和耳鸣(14%),分别。在HRCT上,有82%(49/60)的耳朵报告了胆脂瘤,而组织病理学和术中评估证实了49只耳朵中的40只。在18%(11/60)的耳朵,在HRCT评估中没有诊断出胆脂瘤;然而,术中和组织病理学评估显示6例患者有胆脂瘤,其余患者有肉芽组织.为了检测听骨侵蚀,tegmen侵蚀,面神经管糜烂,乙状窦板糜烂,和外侧/后半规管糜烂;HRCT具有较高的敏感性(86.44%-100%)和特异性(93.33%-100%)。
■HRCT与术中发现有极好的相关性,是术前评估颞骨病变的有价值的工具。
UNASSIGNED: Atticoantral, alias unsafe type of CSOM affects the posterosuperior part of the middle ear cleft and is frequently coupled with complications and bony erosions. This study aimed to correlate the high-resolution computed tomography (HRCT) temporal bone and intraoperative findings in the patients with the unsafe type of CSOM.
UNASSIGNED: This prospective study included 50 patients (28 males: 22 females; mean age 24 ± 14 years) who presented with clinically suspected unsafe CSOM. All patients underwent HRCT of the temporal bone and subsequent surgical procedure. The intraoperative and histopathological findings were compared with HRCT findings. Descriptive statistics, sensitivity, specificity, and positive and negative predictive value for HRCT were calculated. Student\'s t-test and Chi-square test were performed.
UNASSIGNED: Out of 50 patients, left, right, and bilateral ear involvement were seen in 42% (21/50), 38% (19/50), and 20% (10/50) patients, respectively. Ear discharge was the most common symptom (100%) followed by earache (66%), vertigo (16%), and tinnitus (14%), respectively. Cholesteatoma was reported in 82% (49/60) of ears on HRCT while histopathological and intraoperative evaluation confirmed the diagnosis in 40 out of 49 ears. In 18% (11/60) ears, the cholesteatoma was not diagnosed on HRCT evaluation; however, the intraoperative and histopathological assessment revealed cholesteatoma in six patients while the rest had granulation tissue. For detection of ossicular erosions, tegmen erosions, erosions of facial nerve canal, erosions of sigmoid sinus plate, and erosions of lateral/posterior semicircular canals; HRCT had high sensitivity (86.44%-100%) and specificity (93.33%-100%).
UNASSIGNED: HRCT has a superb correlation with intraoperative findings and is a valuable tool for preoperative assessment of temporal bone pathologies.