J Gastric Cancer.  2014 Jun;14(2):129-134.

Effects of Screening on Gastric Cancer Management: Comparative Analysis of the Results in 2006 and in 2011

• Kim YG
• Kong SH
• Oh SY
• Lee KG
• Suh YS
• Yang JY
• Choi J
• Kim SG
• Kim JS
• Kim WH
• Lee HJ
• Yang HK

Abstract

PURPOSE
This study aimed to analyze the effect of screening by using endoscopy on the diagnosis and treatment of gastric cancer.
MATERIALS AND METHODS
The clinicopathologic characteristics of gastric cancer were compared in individuals who underwent an endoscopy because of symptoms (non-screening group) or for screening purposes (screening group). The distributions of gastric cancer stages and treatment modalities in 2006 and 2011 were compared.
RESULTS
The proportion of patients in the screening group increased from 45.1% in 2006 to 65.4% in 2011 (P<0.001). The proportion of stage I cancers in the entire patient sample also increased (from 60.5% in 2006 to 70.6% in 2011; P=0.029). In 2011, the percentages of patients with cancer stages I, II, III, and IV were 79.9%, 8.2%, 10.9%, and 1.1%, respectively, in the screening group, and 47.9%, 10.8%, 29.8%, and 11.5%, respectively, in the non-screening group. The proportion of laparoscopic and robotic surgeries increased from 9.6% in 2006 to 48.3% in 2011 (P<0.001), and endoscopic submucosal dissection increased from 9.8% in 2006 to 19.1% 2011 (P<0.001).
CONCLUSIONS
The proportion of patients diagnosed with gastric cancer by using the screening program increased between 2006 and 2011. This increase was associated with a high proportion of early-stage cancer diagnoses and increased use of minimally invasive treatments.

Keyword

Early detection of cancer; Stomach neoplasms; Therapeutics

MeSH Terms

Diagnosis
Early Detection of Cancer
Endoscopy
Humans
Mass Screening*
Stomach Neoplasms*

Figure

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  Fig. 1 Proportion of patients with gastric cancer detected through screening by using endoscopy. *Refered from the article of Kong et al.9.

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  Fig. 2 Proportion of gastric cancers at each stage in 2006 and 2011.

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  Fig. 3 Stage of gastric cancer in different age groups in 2006 and 2011.

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  Fig. 4 Stage of gastric cancer and patient-reported symptoms.

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  Fig. 5 Surgical management of gastric cancer according to stage in 2006 and 2011.

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