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Water injection colonoscopy has been a generally accepted method in training the beginners of colonoscopy for its low pain and less cecal intubation time, the investigators would conduct this study to investigate advantages of this method for experienced endoscopists.
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 effect was notable, but the present researches on water assisted technique has still been confined to following aspects:1.Water infusing was based on air insufflation; predetermined amount of water was infused ,and water was infused while passing through certain segment of the bowel(such as the left half of colon) ; 2.When training the first-learners, certain dose of sedatives or analgesics was injected; 3.The patients recruited were less. Colonoscopies in this study would be performed by experienced endoscopists of air insufflation colonoscopy, water would be injected completely instead of air insufflation while advancing the colonoscope, the amount of the water infused would not be predetermined but vary from individuals, and all the patients would be examined without any sedatives or analgesics.
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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 .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. | The Gastroenterology Department of the 1st Affiliated Hospital of Harbin Medical University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The Gastroenterology Department of the 1st Affiliated Hospital of Harbin Medical University | Recruiting | Harbin | Heilongjiang | 150001 | China |
| Type | Date | Date Unknown |
|---|---|---|
| Release | Oct 23, 2013 | |
| Reset | Dec 12, 2013 |
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Oct 23, 2013 | Dec 12, 2013 |
| 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 . |
|
| 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 |