title: Does bariatric surgery decrease gastric cancer risk?
abstract: OBJECTIVE
  In the attempt to establish the different incidence between cancer in anatomically whole stomachs and cancer in patients who have undergone a surgical procedure for morbid obesity, a review on the epidemiology of bariatric surgery and stomach cancer and a correlation with the global incidence of stomach cancer (comparing it with the median age of patients who developed neoplasms after bariatric surgery) have been conducted.
  
  
  METHODS
  This was a descriptive study of the gastric neoplasms located at the gastric pouch, bypassed stomach or in the esophagogastric junction, following bariatric surgery described in the medical literature.
  
  
  RESULTS
  Twenty-one cases of gastric neoplasm located at the gastric pouch, in the bypassed stomach or in the esophagogastric junction were described after bariatric surgery.
  
  
  CONCLUSIONS
  Bariatric surgery seems to produce a decrease in the incidence of cancer when comparing obese patients who were operated and obese patients who have not, so additional studies are needed to compare the cancer incidence between the general population and patients undergoing bariatric surgery. New studies will determine if it is necessary to focus on the early detection of pathological processes at the excluded digestive tract.
authors.affiliation: General Hospital, Ciudad Real, Spain. pablo.menedez.sanchez@gmail.com
authors.forename: Pablo
authors.initials: P
authors.lastname: Menéndez
authors.forename: David
authors.initials: D
authors.lastname: Padilla
authors.forename: Pedro
authors.initials: P
authors.lastname: Villarejo
authors.forename: Jose M
authors.initials: JM
authors.lastname: Menéndez
authors.forename: David
authors.initials: D
authors.lastname: Lora
mesh_terms: D000328:Adult; D000368:Aged; D050110:Bariatric Surgery / Q000009:adverse effects* / Q000401:mortality; D005260:Female; D014943:Global Health; D016481:Helicobacter Infections / Q000453:epidemiology / Q000382:microbiology; D016480:Helicobacter pylori / Q000472:pathogenicity; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000401:mortality / Q000601:surgery*; D018570:Risk Assessment; D012307:Risk Factors; D018426:SEER Program; D013274:Stomach Neoplasms / Q000453:epidemiology* / Q000382:microbiology / Q000401:mortality; D013997:Time Factors; D014481:United States / Q000453:epidemiology