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Up to now, many studies has showed that compared with air insufflation colonoscopy, water-related colonoscopy could shorten the cecal intubation time and relieve the pain of the patients,especially for training the beginners,the investigators conduct this study to preform the "air assisted" water injection colonoscopy in experienced endoscopists.
In order to further develop water skills and apply the water assisted colonoscopy technique more flexibly, the investigators designed this study.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Air insufflation colonoscopy | Active Comparator | Air insufflation colonoscopy is the conventional colonoscopy,which is inflating air to help searching the bowel cavity while advancing the colonoscope until reaching the cecum.All the patients were examined without sedation during the whole procedure. |
|
| Water injection colonoscopy | Experimental | Water injection colonoscopy : Cut off air inflating before examination. Water was injected through the working channel to follow the intestinal cavity until reaching the caecum .The mucosa was observed by inflating the bowel with air while withdrawing the colonoscope.All the patients were examined without sedation during the whole procedure. |
|
| " Air assisted" water colonoscopy | Experimental | " Air assisted" water injection colonoscopy: Cut off air inflating before examination. Water was injected through the working channel to follow the intestinal cavity until reaching the splenic flexure, small amount of air inflating could be given to help searching the cavity until reaching the cecum.All the patients were examined without sedation during the whole procedure. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Air insufflation | Other | Air is inflated into the bowel to help searching the cavity while advancing the colonoscope until reaching the cecum. |
|
| Measure | Description | Time Frame |
|---|---|---|
| The success rate of the cecal intubation | This will be calculated after the completion of the whole trial,which is about 2 months |
| Measure | Description | Time Frame |
|---|---|---|
| The cecal intubation time(min) | This will be collected at their procedure appointment which is expected to be 2 to 3 hours in length | |
| The time to reach the splenic flexure(min) | This will be collected at their procedure appointment which is expected to be 2 to 3 hours in length |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Youlin Yang, M.D. | Contact | 8613604809322 | dr.yangylin@163.com | |
| Xiaobing Wang, Master | Contact | 8613936135056 | wxbangel@sina.com |
| Name | Affiliation | Role |
|---|---|---|
| Youlin Yang, M.D. | Gastroenterology Department of The 1st Affiliated Hospital of Harbin Medical University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The 1st Affiliated Hospital of Harbin Medical University | Recruiting | Harbin | Heilongjiang | 150001 | China |
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| ID | Term |
|---|---|
| D003108 | Colonic Diseases |
| D012002 | Rectal Diseases |
| ID | Term |
|---|---|
| D007410 | Intestinal Diseases |
| D005767 | Gastrointestinal Diseases |
| D004066 | Digestive System Diseases |
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| ID | Term |
|---|---|
| D014867 | Water |
| ID | Term |
|---|---|
| D006878 | Hydroxides |
| D000468 | Alkalies |
| D007287 | Inorganic Chemicals |
| D000838 | Anions |
| D007477 |
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| Water injection | Other | Water was injected through the working channel instead of air to follow the intestinal cavity until reaching the caecum . |
|
| " Air assisted" water injection. | Other | Cut off air inflating before examination. Water was injected through the working channel to follow the intestinal cavity until reaching the splenic flexure, small amount of air inflating could be given to help searching the cavity until reaching the cecum. |
|
| VAS abdominal pain score | Data collected usually within 10minutes post procedure |
| The frequency of the colonoscope shortening maneuver while advancing the colonoscope | This will be collected at their procedure appointment which is expected to be 2 to 3 hours in length. |
| Length of colonoscope at time of cecal intubation(cm) | This will be collected at their procedure appointment which is expected to be 2 to 3 hours in length. |
| Volume of water used during water colonoscopy(ml) | This will be collected at their procedure appointment which is expected to be 2 to 3 hours in length. |
| General data of the patients recruited-age | Data collected usually within 10minutes post procedure . |
| General data of the patients recruited-gender | Data collected usually within 10minutes post procedure . |
| General data of the patients recruited-BMI | Data collected usually within 10minutes post procedure . |
| General data of the patients recruited-abdominal or pelvic surgery history | Data collected usually within 10minutes post procedure . |
| General data of the patients recruited-bowel preparation | Data collected usually within 10minutes post procedure . |
| The McGill pain evaluation of the abdominal pain | Data collected usually within 10minutes post procedure |
| Ions |
| D004573 | Electrolytes |
| D010087 | Oxides |
| D017601 | Oxygen Compounds |