Display of esophageal entrance by injecting gas through the laryngoscopic biopsy channel in hypopharyngeal cancer
10.3760/cma.j.issn.1673-0860.2012.07.005
- VernacularTitle:内镜活检孔道注气法用于显露下咽癌患者食管入口处的临床研究
- Author:
Xiao-Guang NI
1
;
Rong-Rong CHENG
;
Shao-Qing LAI
;
Lei ZHANG
;
Shun HE
;
Yue-Ming ZHANG
;
Gui-Qi WANG
Author Information
1. 中国医学科学院北京协和医学院肿瘤医院
- Keywords:
Hypopharyngeal neoplasms;
Laryngoscopy;
Biopsy
- From:
Chinese Journal of Otorhinolaryngology Head and Neck Surgery
2012;47(7):545-548
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the method displaying the hypopharynx and esophageal entrance under laryngoscopy to determine the invasion range of hypopharyngeal cancer.Methods A total of 113 patients with hypopharyngeal cancer was enrolled in this study and they previously underwent conventional laryngoscopic and radiologic examinations.The esophageal entrance was exposed by injecting gas through the biopsy channel of laryngoscope.The invasion of esophageal entrance in hypopharyngealcancers was evaluated by this method and compared with that evaluated with radiology. Results Conventional laryngoscopy was unable to evaluate appreciably esophageal entrance involvement in the 113 patients with hypopharyngeal cancer.After injecting gas through the laryngoscopic biopsy channel,the esophageal entrance was clearly displayed in 96.5％ (109/113 ) patients,showing the presence (33 cases)and absence (76 cases) of esophageal entrance invasion.Imaging examinations only showed the invasion of the esophageal entrance in 25 patients of these patients,but did not in other 8 patients.Laryngoscopy with injecting gas through the biopsy channel was superior to radiological imaging examinations in determining the invasion of the esophageal entrance ( x2 =9.103,P =0.003 ).Conclusion Laryngoscopy with injecting gas through the biopsy channel is a useful method for determining the presence or absence of esophageal entrance invasion in hypopharyngeal cancer prior to surgery.
