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{{CMG}}{{AE}}{{PSD}}
{{CMG}}; {{AE}} {{PSD}} {{MAD}}
{{Stomach cancer}}
{{Stomach cancer}}
==Overview==
==Overview==
The two main modalities for [[gastric cancer]] [[Screening (medicine)|screening]] are [[upper endoscopy]] and [[Contrast medium|contrast]] [[radiography]]. Universal [[screening]] is recommended in countries with a high [[incidence]] of [[gastric cancer]] such as East Asian countries. In areas of low [[gastric cancer]] [[incidence]], [[screening]] for [[gastric cancer]] with [[upper endoscopy]] should be reserved specifically for high-risk subgroups. [[Upper endoscopy]] has a sensitivity of 69 % and [[Upper gastrointestinal series|upper GI series]] has a [[Sensitivity (tests)|sensitivity]] of 37%. Both studies have a [[Specificity (tests)|specificity]] of 96%.


==Screening cancer==
==Screening ==
 The two main modalities for gastric cancer screening are upper endoscopy and contrast radiography.
 The two main modalities for [[gastric cancer]] [[screening]] are [[upper endoscopy]] and [[Contrast medium|contrast]] [[radiography]].
 
'''Upper endoscopy'''
* Upper endoscopy is more sensitive than other screening studies. It allows direct visualization of the gastric mucosa and obtaining biopsies.<ref name="pmid8198977">{{cite journal| author=Pisani P, Oliver WE, Parkin DM, Alvarez N, Vivas J| title=Case-control study of gastric cancer screening in Venezuela. | journal=Br J Cancer | year= 1994 | volume= 69 | issue= 6 | pages= 1102-5 | pmid=8198977 | doi= | pmc=1969457 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8198977  }}</ref>
'''Contrast radiography'''
* Barium radiographs can identify malignant gastric ulcers, infiltrating lesions, and some early gastric cancers.<ref name="pmid6383166">{{cite journal| author=Dooley CP, Larson AW, Stace NH, Renner IG, Valenzuela JE, Eliasoph J et al.| title=Double-contrast barium meal and upper gastrointestinal endoscopy. A comparative study. | journal=Ann Intern Med | year= 1984 | volume= 101 | issue= 4 | pages= 538-45 | pmid=6383166 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=6383166  }}</ref> 
* Barium studies can be false negative in 50 percent of cases. On the other hand, the sensitivity of a barium study may be 14 percent.<ref name="pmid2916797">{{cite journal| author=Longo WE, Zucker KA, Zdon MJ, Modlin IM| title=Detection of early gastric cancer in an aggressive endoscopy unit. | journal=Am Surg | year= 1989 | volume= 55 | issue= 2 | pages= 100-4 | pmid=2916797 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=2916797  }}</ref> 
* In patients with linitis plastica, barium study may be superior to upper endoscopy.
'''COMPARISON OF SCREENING METHODS'''
 
'''Test performance'''
 
Gastric cancer detection rates were 2.61 and 0.68 per 1000 screenings, respectively. The sensitivity rates for upper endoscopy versus upper GI series in detecting gastric cancer were 69 and 37 percent, respectively. Both studies had a specificity of 96 percent. The sensitivity of upper endoscopy in detecting a localized gastric cancer was also significantly higher as compared with upper GI series (68 versus 32 percent). In total, 2067 interval cancers occurred within one year of a negative upper GI series and 1083 cancers occurred after a negative upper endoscopy, but there was no difference in interval cancer rates (1.2 per 1000 screenings for both groups).


'''Effectiveness'''
=== '''Upper endoscopy''' ===
* [[Upper endoscopy]] is more [[Sensitivity (tests)|sensitive]] than other [[Screening (medicine)|screening]] studies. It allows direct visualization of the [[gastric]] [[Mucosal|mucosa]] and allows for obtaining [[Biopsy|biopsies]].<ref name="pmid8198977">{{cite journal| author=Pisani P, Oliver WE, Parkin DM, Alvarez N, Vivas J| title=Case-control study of gastric cancer screening in Venezuela. | journal=Br J Cancer | year= 1994 | volume= 69 | issue= 6 | pages= 1102-5 | pmid=8198977 | doi= | pmc=1969457 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8198977  }}</ref>


Lead time bias, length bias, and selection bias must be considered when appraising the overall effectiveness of screening demonstrated in observational studies. In a retrospective cohort study of 19,168 gastric cancer patients in Korea, endoscopy-screened patients and patients screened with upper GI series were significantly more likely to be diagnosed with localized gastric cancer as compared with never-screened patients (odds ratio 2.1, 95% CI 1.9-2.3 and 1.2, 95% CI 1.1-1.4, respectively)<ref name="pmid25490528">{{cite journal| author=Choi KS, Jun JK, Suh M, Park B, Noh DK, Song SH et al.| title=Effect of endoscopy screening on stage at gastric cancer diagnosis: results of the National Cancer Screening Programme in Korea. | journal=Br J Cancer | year= 2015 | volume= 112 | issue= 3 | pages= 608-12 | pmid=25490528 | doi=10.1038/bjc.2014.608 | pmc=4453643 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25490528 }}</ref>  
=== '''Contrast radiography''' ===
* [[Barium meal|Barium radiographs]] can identify [[malignant]] [[Gastric ulcer|gastric ulcers]], infiltrating [[lesions]], and some early [[Gastric cancer|gastric cancers]].<ref name="pmid6383166">{{cite journal| author=Dooley CP, Larson AW, Stace NH, Renner IG, Valenzuela JE, Eliasoph J et al.| title=Double-contrast barium meal and upper gastrointestinal endoscopy. A comparative study. | journal=Ann Intern Med | year= 1984 | volume= 101 | issue= 4 | pages= 538-45 | pmid=6383166 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=6383166  }}</ref> 
* [[Barium follow-through|Barium studies]] can be false negative in 50 percent of cases and the [[Sensitivity (tests)|sensitivity]] of a [[Barium meal|barium study]] may be 14 percent.<ref name="pmid2916797">{{cite journal| author=Longo WE, Zucker KA, Zdon MJ, Modlin IM| title=Detection of early gastric cancer in an aggressive endoscopy unit. | journal=Am Surg | year= 1989 | volume= 55 | issue= 2 | pages= 100-4 | pmid=2916797 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=2916797 }}</ref>
* In [[patients]] with [[linitis plastica]], a [[Barium follow-through|barium study]] may be superior to [[upper endoscopy]].


This study did not include data as to which patients were symptomatic or had undergone evaluation outside of the screening program for evaluation of symptoms.
=== '''Sensitivity of tests''' ===
* [[Upper endoscopy]] has a [[sensitivity]] of 69 % and [[Upper gastrointestinal series|upper GI series]] has a [[Sensitivity (tests)|sensitivity]] of 37%.


'''SCREENING STRATEGIES'''
* Both studies had a [[Specificity (tests)|specificity]] of 96%.


'''Universal screening'''
* The [[upper endoscopy]] [[Sensitivity (tests)|sensitivity]] in detecting a localized [[gastric cancer]] is higher than [[Upper gastrointestinal series|upper GI series]].<ref name="pmid25490528">{{cite journal| author=Choi KS, Jun JK, Suh M, Park B, Noh DK, Song SH et al.| title=Effect of endoscopy screening on stage at gastric cancer diagnosis: results of the National Cancer Screening Programme in Korea. | journal=Br J Cancer | year= 2015 | volume= 112 | issue= 3 | pages= 608-12 | pmid=25490528 | doi=10.1038/bjc.2014.608 | pmc=4453643 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25490528  }}</ref>


In countries with a high incidence of gastric cancer such as east asia countaries, universal screening is recommended.<ref name="pmid1759081">{{cite journal| author=Llorens P| title=Gastric cancer mass survey in Chile. | journal=Semin Surg Oncol | year= 1991 | volume= 7 | issue= 6 | pages= 339-43 | pmid=1759081 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1759081  }}</ref>
== Screening Strategies ==


In Japan, population-based screening for gastric cancer is recommended for individuals older than 50 years with conventional double-contrast barium radiograph with photofluorography every year or upper endoscopy every two to three years<ref name="pmid25505714">{{cite journal| author=Choi IJ| title=Endoscopic gastric cancer screening and surveillance in high-risk groups. | journal=Clin Endosc | year= 2014 | volume= 47 | issue= 6 | pages= 497-503 | pmid=25505714 | doi=10.5946/ce.2014.47.6.497 | pmc=4260096 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25505714 }}</ref>
=== '''Universal screening''' ===
* Universal [[Screening (medicine)|screening]] is recommended in countries with a high [[incidence]] of [[gastric cancer]] such as East Asian countries.<ref name="pmid1759081">{{cite journal| author=Llorens P| title=Gastric cancer mass survey in Chile. | journal=Semin Surg Oncol | year= 1991 | volume= 7 | issue= 6 | pages= 339-43 | pmid=1759081 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1759081 }}</ref>


Screening interval is recommended to be every two years but may be widened to a three-year rather than a two-year interval without significant effect<ref name="pmid24613579">{{cite journal| author=Park CH, Kim EH, Chung H, Lee H, Park JC, Shin SK et al.| title=The optimal endoscopic screening interval for detecting early gastric neoplasms. | journal=Gastrointest Endosc | year= 2014 | volume= 80 | issue= 2 | pages= 253-9 | pmid=24613579 | doi=10.1016/j.gie.2014.01.030 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=24613579 }}</ref>  
* In Japan, population-based [[Screening (medicine)|screening]] for [[gastric cancer]] is recommended for individuals older than 50 years with conventional double-contrast [[barium]] [[radiograph]] with photofluorography every year or [[upper endoscopy]] every two to three years<ref name="pmid25505714">{{cite journal| author=Choi IJ| title=Endoscopic gastric cancer screening and surveillance in high-risk groups. | journal=Clin Endosc | year= 2014 | volume= 47 | issue= 6 | pages= 497-503 | pmid=25505714 | doi=10.5946/ce.2014.47.6.497 | pmc=4260096 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25505714 }}</ref>


'''Selective screening of high-risk subgroups'''
* [[Screening]] interval is recommended to be every two years but may be widened to a three-year interval without significant effect.<ref name="pmid24613579">{{cite journal| author=Park CH, Kim EH, Chung H, Lee H, Park JC, Shin SK et al.| title=The optimal endoscopic screening interval for detecting early gastric neoplasms. | journal=Gastrointest Endosc | year= 2014 | volume= 80 | issue= 2 | pages= 253-9 | pmid=24613579 | doi=10.1016/j.gie.2014.01.030 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=24613579  }}</ref>


In areas of low gastric cancer incidence, screening for gastric cancer with upper endoscopy should be reserved for specific high-risk subgroups<ref name="pmid1853856">{{cite journal| author=Tersmette AC, Goodman SN, Offerhaus GJ, Tersmette KW, Giardiello FM, Vandenbroucke JP et al.| title=Multivariate analysis of the risk of stomach cancer after ulcer surgery in an Amsterdam cohort of postgastrectomy patients. | journal=Am J Epidemiol | year= 1991 | volume= 134 | issue= 1 | pages= 14-21 | pmid=1853856 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1853856  }}</ref>  
=== '''Selective screening of high-risk subgroups''' ===
* In areas of low [[gastric cancer]] [[incidence]], [[screening]] for gastric cancer with [[upper endoscopy]] should be reserved for specific high-risk subgroups.<ref name="pmid1853856">{{cite journal| author=Tersmette AC, Goodman SN, Offerhaus GJ, Tersmette KW, Giardiello FM, Vandenbroucke JP et al.| title=Multivariate analysis of the risk of stomach cancer after ulcer surgery in an Amsterdam cohort of postgastrectomy patients. | journal=Am J Epidemiol | year= 1991 | volume= 134 | issue= 1 | pages= 14-21 | pmid=1853856 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1853856  }}</ref>


Individuals at increased risk for gastric cancer include those with the following:
*Individuals at increased risk for [[gastric cancer]] include those [[patients]] having the following:
* Gastric adenomas
**[[Gastric]] [[Adenoma|adenomas]]
* Pernicious anemia
**[[Pernicious anemia]]
* Gastric intestinal metaplasia
**[[Gastric]] [[intestinal]] [[metaplasia]]
* Familial adenomatous polyposis
**[[Familial adenomatous polyposis]]
* Lynch syndrome
**[[Lynch syndrome]]
* Peutz-Jeghers syndrome
**[[Peutz-Jeghers syndrome]]
* Juvenile polyposis syndrome
**[[Juvenile polyposis syndrome]]


==References==
==References==
{{reflist|2}}
{{reflist|2}}
[[Category:Disease]]
[[Category:Types of cancer]]
[[Category:Conditions diagnosed by stool test]]
[[Category:Primary care]]
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Latest revision as of 11:55, 5 April 2019


Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2] Mohammed Abdelwahed M.D[3]

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Overview

The two main modalities for gastric cancer screening are upper endoscopy and contrast radiography. Universal screening is recommended in countries with a high incidence of gastric cancer such as East Asian countries. In areas of low gastric cancer incidence, screening for gastric cancer with upper endoscopy should be reserved specifically for high-risk subgroups. Upper endoscopy has a sensitivity of 69 % and upper GI series has a sensitivity of 37%. Both studies have a specificity of 96%.

Screening

 The two main modalities for gastric cancer screening are upper endoscopy and contrast radiography.

Upper endoscopy

Contrast radiography

Sensitivity of tests

Screening Strategies

Universal screening

  • Screening interval is recommended to be every two years but may be widened to a three-year interval without significant effect.[7]

Selective screening of high-risk subgroups

References

  1. Pisani P, Oliver WE, Parkin DM, Alvarez N, Vivas J (1994). "Case-control study of gastric cancer screening in Venezuela". Br J Cancer. 69 (6): 1102–5. PMC 1969457. PMID 8198977.
  2. Dooley CP, Larson AW, Stace NH, Renner IG, Valenzuela JE, Eliasoph J; et al. (1984). "Double-contrast barium meal and upper gastrointestinal endoscopy. A comparative study". Ann Intern Med. 101 (4): 538–45. PMID 6383166.
  3. Longo WE, Zucker KA, Zdon MJ, Modlin IM (1989). "Detection of early gastric cancer in an aggressive endoscopy unit". Am Surg. 55 (2): 100–4. PMID 2916797.
  4. Choi KS, Jun JK, Suh M, Park B, Noh DK, Song SH; et al. (2015). "Effect of endoscopy screening on stage at gastric cancer diagnosis: results of the National Cancer Screening Programme in Korea". Br J Cancer. 112 (3): 608–12. doi:10.1038/bjc.2014.608. PMC 4453643. PMID 25490528.
  5. Llorens P (1991). "Gastric cancer mass survey in Chile". Semin Surg Oncol. 7 (6): 339–43. PMID 1759081.
  6. Choi IJ (2014). "Endoscopic gastric cancer screening and surveillance in high-risk groups". Clin Endosc. 47 (6): 497–503. doi:10.5946/ce.2014.47.6.497. PMC 4260096. PMID 25505714.
  7. Park CH, Kim EH, Chung H, Lee H, Park JC, Shin SK; et al. (2014). "The optimal endoscopic screening interval for detecting early gastric neoplasms". Gastrointest Endosc. 80 (2): 253–9. doi:10.1016/j.gie.2014.01.030. PMID 24613579.
  8. Tersmette AC, Goodman SN, Offerhaus GJ, Tersmette KW, Giardiello FM, Vandenbroucke JP; et al. (1991). "Multivariate analysis of the risk of stomach cancer after ulcer surgery in an Amsterdam cohort of postgastrectomy patients". Am J Epidemiol. 134 (1): 14–21. PMID 1853856.

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