early gastric cancer and gastric adenoma
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Patients who meet at least one of the following criteria. 1. History of endoscopic treatment for gastric cancer or gastric adenoma 2. Currently diagnosed with early-stage gastric cancer, advanced gastric cancer, or gastric adenoma (known lesions are excluded) 2) Age: 20 years or older, 95 years or younger 3) Written informed consent has been obtained.
Exclusion criteria
Exclusion criteria: 1) Patients after gastric or esophageal surgical resection 2) Patients who cannot undergo a biopsy 3) Pregnant patients
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The proportion of individuals who were able to undergo indigo carmine spray (second round) and in whom early gastric cancer or gastric adenoma (one or more) was additionally detected among those who were able to undergo indigo carmine spray (second round). | — |
Secondary
| Measure | Time frame |
|---|---|
| 1) False positive rate in biopsy 2) Detection rate of early gastric cancer and adenoma during the first observation (white light) 3) Increase in confidence in lesion detection using indigo carmine staining 4) Relationship between the degree of atrophy of the background gastric mucosa (Kimura-Takemoto classification) and tumor detection rate 5) Clinical and pathological characteristics of detected gastric tumors 6) Interval period between the previous and current endoscopic examinations 7) Adverse events during endoscopic examination | — |
Countries
Japan
Contacts
Kyoto Prefectural University of Medicine Molecular gastroenterology and hepatology