Esophageal cancer secondary prevention: Difference between revisions

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==Overview==
==Overview==
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==Secondary Prevention==
==Secondary Prevention==
*In 1983, a study was carried out in Hishun village, China.  
*Secondary prevention can be effective in high risk groups whom frequently smoke and drink alcohol if they are treated early enough in the dysplastic change before cancer occurs.<ref name="pmid3219974">{{cite journal |vauthors=Lin PZ, Zhang JS, Cao SG, Rong ZP, Gao RQ, Han R, Shu SP |title=[Secondary prevention of esophageal cancer--intervention on precancerous lesions of the esophagus] |language=Chinese |journal=Zhonghua Zhong Liu Za Zhi |volume=10 |issue=3 |pages=161–6 |year=1988 |pmid=3219974 |doi= |url=}}</ref>
*A study was carried out in Hishun village, China.  
*Due to different dietary factors, the incidence of esophageal cancer amongst these people was particularly high.  
*Due to different dietary factors, the incidence of esophageal cancer amongst these people was particularly high.  
*6758 subjects were examined by esophageal exfoliative cytology, 1729 had marked dysplasia and 2411 had mild dysplasia of esophageal epithelium.
*Subjects were examined by esophageal exfoliative cytology
*Those with marked dysplasia were randomly divided into 3 groups and given: antitumor B (Chinese herbs); retinamide (4-Ethoxycarbophenylretinamide) and placebo.  
*One thrid of the participants had marked dysplasia  
* antitumor B (Chinese herbs); retinamide (4-Ethoxycarbophenylretinamide) and placebo.  
*The subjects with mild dysplasia were randomly divided  into 2 groups for treatment with riboflavin and placebo.  
*The subjects with mild dysplasia were randomly divided  into 2 groups for treatment with riboflavin and placebo.  
*They took their respective treatments for 3 years and were then reexamined using cytology.
*They were placed on  antitumor B for 3 years  
*The incidence of esophageal cancer in the antitumor B group was reduced by 53% as compared with that of the placebo group (8.3%).  
*The incidence of esophageal cancer in the antitumor B group was reduced by 53% as compared with that of the placebo group (8.3%).  
*The incidence of esophageal cancer in retinamide and riboflavin groups were reduced by 33.7% and 19% as compared with those of the control groups.
*These results demonstrated that the secondary prevention of esophageal cancer is effective in the prevention of esophageal cancer.
*These results demonstrated that the secondary prevention of esophageal cancer is effective in the prevention of esophageal cancer.<ref name="pmid3219974">{{cite journal |vauthors=Lin PZ, Zhang JS, Cao SG, Rong ZP, Gao RQ, Han R, Shu SP |title=[Secondary prevention of esophageal cancer--intervention on precancerous lesions of the esophagus] |language=Chinese |journal=Zhonghua Zhong Liu Za Zhi |volume=10 |issue=3 |pages=161–6 |year=1988 |pmid=3219974 |doi= |url=}}</ref>


==References==
==References==

Revision as of 14:35, 19 December 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]

Overview

Secondary prevention may be effective in reducing the incidence of esophageal cancer, if treated early at the dysplasia stage with monoclonal antibody therapy. At present, there is no particular program in place to reduce the incidence of esophageal cancer.

Secondary Prevention

  • Secondary prevention can be effective in high risk groups whom frequently smoke and drink alcohol if they are treated early enough in the dysplastic change before cancer occurs.[1]
  • A study was carried out in Hishun village, China.
  • Due to different dietary factors, the incidence of esophageal cancer amongst these people was particularly high.
  • Subjects were examined by esophageal exfoliative cytology
  • One thrid of the participants had marked dysplasia
  • antitumor B (Chinese herbs); retinamide (4-Ethoxycarbophenylretinamide) and placebo.
  • The subjects with mild dysplasia were randomly divided into 2 groups for treatment with riboflavin and placebo.
  • They were placed on antitumor B for 3 years
  • The incidence of esophageal cancer in the antitumor B group was reduced by 53% as compared with that of the placebo group (8.3%).
  • These results demonstrated that the secondary prevention of esophageal cancer is effective in the prevention of esophageal cancer.

References

  1. Lin PZ, Zhang JS, Cao SG, Rong ZP, Gao RQ, Han R, Shu SP (1988). "[Secondary prevention of esophageal cancer--intervention on precancerous lesions of the esophagus]". Zhonghua Zhong Liu Za Zhi (in Chinese). 10 (3): 161–6. PMID 3219974.


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