Differences of three positioning methods of the 24-hour esophageal pH catheter and relative factors
10.3760/cma.j.issn.1673-4904.2010.34.006
- VernacularTitle:24小时食管pH监测电极的三种定位方法比较及其影响因素
- Author:
Zhiwei XIA
;
Yan DI
;
Ying GE
;
Aiying WANG
;
Xin LIU
;
Yaopeng ZHANG
;
Kun WANG
;
Liping DUAN
- Publication Type:Journal Article
- Keywords:
Esophagus;
Hydrogen-ion concentration;
Electrodes
- From:
Chinese Journal of Postgraduates of Medicine
2010;33(34):15-17
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the differences of esophageal manometry (M),pH set-up method (P) and X-ray (X) on positioning of the 24-hour esophageal pH catheter and relative factors. Methods Fifty subjects underwent M, then pH catheter was located by P and X. The difference between methods and the relative factors such as body height,lower esophageal sphincter (LES) length etc were analyzed. The difference of less than 2 cm between two methods was accepted. Results The length between the location determined by M,Pand X and nose were (37.9 ±2.9),(40.8 ±4.4) and (40.7 ±5.3) cm, respectively.There was significant difference between P and M as well as between X and M (P＜ 0.01 ). The coincidence rate was 62.0%(31/50) between P and M;84.0%(42/50) between P and X;and 58.0%(29/50) between X and M. Compared with P,M was (2.9 ±3.9) cm nearer to the stomach. Age, body height and LES length were main factors which affect the difference between P and M (P＜ 0.01 or ＜ 0.05),body height and LES length were main factors which affect the difference between X and M (P＜0.05 or ＜0.01). Conclusions Compared with M, the location determined by P is nearer to stomach. The location of X is varied. Body height and LES length are main relative factors.
