Mishra Sudeep, Chhetri Shyam Thapa, Pant Ashok Raj, Shah Shankar Prasad, Manandhar Sriti
Department of Otolaryngology, BP Koirala Institute of Health Sciences, Dharan, Nepal.
Department of Radio Diagnosis, BP Koirala Institute of Health Sciences, Dharan, Nepal.
JNMA J Nepal Med Assoc. 2019 Sep-Oct;57(219):311-314. doi: 10.31729/jnma.4637.
Endoscopic sinus surgery is a well-known approach for sino-nasal pathologies. Due to close proximity to the brain and orbit, the surgeon should be aware of the sino-nasal anatomy and its associated variations. Detailed preoperative assessment of the sinus computed tomography scans reduces the frequency of severe complications in patients undergoing an endoscopic sinus surgery. So, the aim of this study is to find the prevalence of dangerous ethmoid in a tertiary center in eastern Nepal.
A descriptive cross-sectional study was performed in a Computed tomography scan of 50 patients with chronic sinusitis undergoing endoscopic sinus surgery from February 2018 to August 2018 in the department of Otolaryngology and Radiology of BP Koirala institute of health sciences after taking ethical approval from Institutional Review Committee of the institute. Measurements are taken in the coronal plane. The depth of the lateral lamella of the cribriform plate was defined according to the Keros classification which defines the dangerous ethmoid. and side. Data entered in MS excel. Statistical analysis was performed in SPSS version 11.5.
Keros type I, II, and III were noted in 17 (17%), 54 (54%) and 29 (29%) of cases respectively. The mean width of the olfactory fossa, medial orbital wall distance and distance from medial nasal concha were 3.57mm, 8.77mm & 17.78mm respectively.
The most common type of dangerous ethmoid was keros type II.
The most common type of dangerous ethmoid was keros type II.
内镜鼻窦手术是治疗鼻窦疾病的一种广为人知的方法。由于鼻窦与脑和眼眶毗邻，外科医生应了解鼻窦解剖结构及其相关变异。对鼻窦计算机断层扫描进行详细的术前评估可降低接受内镜鼻窦手术患者严重并发症的发生率。因此，本研究的目的是在尼泊尔东部的一家三级中心寻找危险筛窦的患病率。
在获得该机构伦理审查委员会的伦理批准后，于2018年2月至2018年8月在BP Koirala健康科学研究所耳鼻喉科和放射科对50例接受内镜鼻窦手术的慢性鼻窦炎患者进行了计算机断层扫描，开展了一项描述性横断面研究。测量在冠状面进行。筛板外侧板的深度根据定义危险筛窦的Keros分类来确定。数据录入MS Excel。在SPSS 11.5版中进行统计分析。
分别在17例（17%）、54例（54%）和29例（29%）病例中发现了Keros I型、II型和III型。嗅窝的平均宽度、眶内侧壁距离和距中鼻甲的距离分别为3.57mm、8.77mm和17.78mm。
最常见的危险筛窦类型是Keros II型。
最常见的危险筛窦类型是Keros II型。
