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Chinese Journal of Digestion and Medical Imageology(Electronic Edition) ›› 2019, Vol. 09 ›› Issue (02): 65-67. doi: 10.3877/cma.j.issn.2095-2015.2019.02.004

Special Issue:

• Clinical Science Research • Previous Articles     Next Articles

Effectiveness of pronase and premedication with dimethylpolysiloxane for visualization of the mucosa during gastroscopy

Haiyan Dong1, Qiuping Pang1, Shufen Su1, Yan Zhang1, Yan Lu1, Xinyong Jia1,()   

  1. 1. Department of Endoscopy, Qianfoshan Hospital ofShandong Province, Jinan 250014, China
  • Received:2018-11-21 Online:2019-04-01 Published:2019-04-01
  • Contact: Xinyong Jia
  • About author:
    Corresponding author: Jia Xinyong, Email:

Abstract:

Objective

To assess the efficacies of dimethylpolysiloxane plus pronase and dimethylpolysiloxane plus chymotrypsin for visualization of the mucosa during gastroscopy.

Methods

A total of 78 patients taken gastroscopy in Department of Endoscopy, Qianfoshan Hospital of Shandong Province were selected in January 2018.All the patients were randomly and double-blindly divided into two groups equally.The patients in group A(pronase group)received the solution of 5 g dimethylpolysiloxane, 20 000 U pronase, 1 g sodium bicarbonate and 50 ml warm water.The patients in group B(chymotrypsin group)received the solution of 5 g dimethylpolysiloxane, 4 000 U chymotrypsin, 1 g sodium bicarbonate and 50 ml warm water.The vision clarity of the two groups was contrastively analyzed.

Results

The antrum visibility, gastric body visibility, fundus visibility and the total visibility of group A were significantly higher than those of group B(antrum: 1.7±1.0 vs.1.2±0.5; gastric body: 2.6±0.8 vs.2.1±0.8; fundus: 1.9±0.8 vs.1.5±0.7; the total visibility: 6.2±2.1 vs.4.7±1.6), with statistically significant differences(all P<0.05).

Conclusion

Combined application of pronase plus dimethylpolysiloxane before gastroscopy significantly improves endoscopic visualization.And the effect is better than chymotrypsin plus dimethylpolysiloxane.

Key words: Pronase, Dimethylpolysiloxane, Gastroscopy, visualization

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