Retrospective Review of Gastrointestinal System Endoscopy Procedures

Study Overview
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Brief Summary
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The aim of the study is retrospectively evaluating all features of endoscopic and pathological diagnoses of cases who underwent upper and lower gastrointestinal endoscopy.

Detailed Description
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Gastrointestinal system endoscopy has an important place in the diagnosis and treatment of many diseases related to this system and provides an alternative to current surgical methods with its ever-expanding field of application. Upper and lower gastrointestinal endoscopy procedures are performed with many indications, such as new complaints in the gastrointestinal tract at the age of 50 and over, family history of gastrointestinal malignancy. In addition, the importance of endoscopy is gradually increasing as tissue and cell samples can be taken for histopathological studies and endoscopic treatment of some diseases. The aim of the study is to review patients' indications, distribution by age and gender, frequency of lesions diagnosed on endoscopy, prevalence, size, histology and location of polyps detected and excised, results of endoscopic and pathological diagnoses. The study population consists of the patients who were examined at the Istanbul Sultanbeyli State Hospital Endoscopy Unit between 01.01.2016 and 01.01.2021. The patients' data will be scanned retrospectively by accessing their files from the computer database.

Official Title
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Retrospective Review of Gastrointestinal System Endoscopy Procedures

Conditions
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Biopsy, Endoscopy, Colonoscopy, Gastroscopy, Colonic Polyps, Endoscopy, Digestive System, Gastrointestinal Neoplasms

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult patients (over 18 years old) Patients who have undergone the procedure in our endoscopy unit Exclusion Criteria: Under 18 years old Patients whose information cannot be accessed in the system records.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 100 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Age | Age distribution of patients in endoscopic procedures and histopathological examinations | During 3 months (retrospective endoscopy data review) | 
| Gender | Sex distribution of patients in endoscopic procedures and histopathological examinations | During 3 months (retrospective endoscopy data review) | 
| Type of endoscopy | Number of each endoscopy, Type (esophagogastroduodenoscopy, colonoscopy, rectosigmoidoscopy) | During 3 months (retrospective endoscopy data review) | 
| Indications | Number of endoscopic indications, Type (Abnormal imaging, GI bleeding, Anemia, Screening and surveillance, Diarrhea, Constipation, Abdominal pain, Weight loss, Dyspepsia, Heartburn, Dysphagia, Odynophagia, Upper belly pain or chest pain that is not heart-related, Intractable vomiting, Bleeding in the upper, Persistent gastroesophageal reflux symptoms, Occult gastrointestinal bleeding, Other) | During 3 months (retrospective endoscopy data review) | 
| Procedure-related complications rates | The patients with complications / the total patients Number of adverse events; early or late (within 1 month), related to the endoscopic procedure, Type (cardiopulmonary complication, gastrointestinal bleeding, perforation, mortality) | During 3 months (retrospective endoscopy data review) | 
| Prevalence of benign/malign gastrointestinal disease in the endoscopy | The patients with benign gastrointestinal disease / the total patients The patients with malign gastrointestinal disease / the total patients | During 3 months (retrospective endoscopy data review) | 
| Polyp/tumor detection rate of screening endoscopy | The patients with polyp / the total number of screening endoscopy patients The patients with tumor / the total number of screening endoscopy patients | During 3 months (retrospective endoscopy data review) | 
| Polyp/tumor detection rate of symptomatic patients' endoscopy | The patients with polyp / the total number of symptomatic patients endoscopy The patients with tumor / the total number of symptomatic patients endoscopy | During 3 months (retrospective endoscopy data review) | 
| Polyps localization and frequency | The patients with polyp / the total patients Number of polyp localizations, Type (Rectum, Sigmoid colon, Descending colon, Splenic flexure, Transverse colon, Hepatic flexure, Ascending colon, Caecum, Multiple localization) | During 3 months (retrospective endoscopy data review) | 
| Non-neoplastic biopsy results | The patients with non-neoplastic biopsy results / the total patients | During 3 months (retrospective endoscopy data review) | 
| Prevalence of gastric/bowel diseases in histopathology | The patients with gastric disease / the total patients The patients with bowel disease / the total patients | During 3 months (retrospective endoscopy data review) | 
| Prevalence of advanced neoplasia | The patients with advanced neoplasia / the total patients | During 3 months (retrospective endoscopy data review) | 
| Prevalence of gastric/colorectal cancer | The patients with gastric cancer / the total patients The patients with colorectal cancer / the total patients | During 3 months (retrospective endoscopy data review) | 
| Completeness rate of the procedures | The number of completed procedures / total number of procedures | During 3 months (retrospective endoscopy data review) |