It is Possible to Maintain the Performance of Screening Colonoscopies Under MEOPA During the Covid 19 Epidemic Period When Access to the Operating Room is Limited

Study Overview
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Brief Summary
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Feedback: during the COVID-19 epidemic, access to operating theaters was restricted so that anesthetists and nurse anesthetists could reinforce the resuscitation workforce. The MEOPA was used as an alternative to sedation, allowing colonoscopies to be carried out, colon polyps and colorectal cancers to be detected.

Detailed Description
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Colonoscopy is a major procedure for screening for cancers and diagnosing colorectal lesions. In France, general anesthesia remains the most widely used sedation method for colonoscopy. Faced with several constraints such as difficulty of access to the operating room, length of hospitalization and contraindications to general anesthesia, several sedation methods have been adopted. The best known is sedation by MEOPA (equimolar mixture of oxygen protoxide of nitrogen) marketed under the name of Kalinox. It is offered as a second-line treatment after general anesthesia. Since March 2020, the COVID-19 health crisis has forced us to change our care. Faced with restricted access to the operating room (anesthetists and nurse anesthetists requisitioned to participate in the care of patients in intensive care), colonoscopy under MEOPA was offered to patients who could have benefited from general anesthesia before the crisis. This monocentric retrospective descriptive study at the CHSF (Centre Hospitalier Sud Francilien) will make it possible to assess the quality of colonoscopies performed under MEOPA in the first line. This is a feedback, the MEOPA having allowed us to continue and maintain the performance of screening colonoscopies during the COVID 19 epidemic.

Official Title
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Quality of Colonoscopies Under Kalinox During the COVID 19 Epidemic

Conditions
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Colorectal Cancer

Intervention / Treatment
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* Procedure: colonoscopy


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult patients who had a colonoscopy under MEOPA between January 2019 and May 2021 at the CHSF. Exclusion Criteria: Colonoscopy under general anesthesia Refusal of data collection.

Ages Eligible for Study
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Minimum Age: 18 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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Arms and Interventions

| Intervention/Treatment |
| --- |
|Procedure: colonoscopy|A colonoscopy is an exam used to examine the colon and rectum. During a colonoscopy, a long, flexible tube is inserted into the rectum. A tiny video camera at the tip of the tube allows the doctor to view the inside of the entire colon.|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| percentage of complete colonoscopies | percentage | at day 0 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Adenoma detection rate. | percentage | at day 0 | 
| Polyp detection rate. | percentage | at day 0 | 
| Colorectal cancer detection rate | percentage | at day 0 | 
| Quality of colonic preparation (Boston score) | Breakdown into 3 groups: good (Boston Bowel Preparation SCALE 7, 8, 9), bad (Boston Bowel Preparation SCALE 4, 5, 6) and unsatisfactory (Boston Bowel Preparation SCALE 1, 2, 3) | at day 0 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Colorectal cancer, Colonoscopy quality indicator, COVID 19, Type of anesthesia, Colonoscopy and polypectomy