Randomized Controlled Trial Comparing Water vs. Air Method for Performing Colonoscopy in Adult Female Subjects
This is a prospective , single center, investigator initiated, randomized controlled trial to compare two methods of performing colonoscopy by experienced colonoscopist. Potential female subjects presenting for colonoscopy at UCD GI Lab will be presented with the study option and will be enrolled if they sign the informed consent.
In recent years, the water infusion method has been reported to have several beneficial effects when studied in veteran patients. These include: significant reduction in discomfort to permit a significantly higher percentage (98% vs. 76%) of veterans to complete scheduled unsedated colonoscopy, lower sedation medication requirement when they accepted the option of minimal pre-medication sedation, more patients completing without sedation (78% vs 54%) when they accepted the on demand sedation and an increase in the yield of adenomas (a type of cancer seen in the colon) in screening and surveillance colonoscopy. Reviewers of the method have repeatedly called for studies using the method in female patients to confirm or refute the findings as most of the veteran patients are male patients.
Descripción general del estudio
Estado
Condiciones
Descripción detallada
Study Aim Our aim is to perform a randomized controlled trial comparing air insufflation colonoscopy (conventional method ) vs. water infusion colonoscopy ( study method ) in non veteran female subjects presenting for colonoscopy . Subjects will be randomized 1:1 like the flip of coin.
Study Design This is a prospective, single center, investigator initiated, randomized controlled trial (RCT) to compare the study method (water infusion colonoscopy) with conventional method (air insufflation colonoscopy "pump air to dilate the colon to visualize the colon mucosa) in female patients by experienced colonoscopist. Patients will be classified ASA 1 (No organic, physiologic, biomedical or psychiatric disturbance) and ASA 2 (Mild to moderate systemic diseases which are well controlled including hypertension, diabetes mellitus, asthma, age 70 and over) before colonoscopy procedure.
Research Methods and Procedures The air (conventional) method: Air is pumped gently (insufflation) into the colon will be used to open the inside space of the colon and aid in colonoscope insertion The water (study) method: Warm water (body temperature) will be pumped into the colon in place of air to open the inside of space of the colon and aid in colonoscope insertion After insertion, both methods may use any of the following procedures to advance the colonoscope in to the colon: colonoscope shortening maneuver, abdominal compression, by the assistant, and change of patient position. In both methods air insufflation will be used to distend the colon for inspection, biopsy and polypectomy. Washing of the stool covered mucosa and inspection behind the folds will be performed systematically. After turn around in the rectum, residual air and water will be removed by suction.
Data gathering instruments used in the VA studies will be employed (subject interview questions are attached). Statistical analyses similar to those used in the previous VA studies (Student's t tests, Fischer's exact test, Mann-Whitney U test, etc) will be used to analyze the data.
Biopsy and polypectomy will be performed as usual and all tissues will be submitted for routine histological assessment and the pathology will be recorded.
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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California
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Sacramento, California, Estados Unidos, 95817
- University of California, Davis
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
-All female patients between the ages of 18 to 80 years scheduled for colonoscopy at UC Davis GI Lab.
Exclusion Criteria:
- Patients who refuse to be randomized to the air or water colonoscopy method.
- Patients who are unable to respond to study questionnaires.
- Patients with partial colon resection
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Experimental: water colonoscopy
The water (study) method: Warm water (body temperature) will be infused into colon to open the lumen for water infusion colonoscopy.
Higher rate of complete colonoscopy will be achieved.
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Otros nombres:
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Comparador activo: Air Colonoscopy
The air (conventional) method: Air is pumped gently (insufflation) into the colon will be used to open the inside space of the colon and aid in colonoscope insertion
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Cecal intubation
Periodo de tiempo: Three years
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Examination of the cecum by endoscopy
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Three years
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Amount of opiate and benzodiazepines used for sedation.
Periodo de tiempo: Three years
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The total amount of opiate (either demerol of fentanyl) used for sedation.
|
Three years
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Otras medidas de resultado
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Patient discomfort Patient pain rating during and after procedure
Periodo de tiempo: Three years
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Patient's pain score (on a 1-10 scale) during and after the procedure.
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Three years
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Surinder Mann, M.D., UCD
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 319719
- UCD IRB # 319719 (Otro identificador: UC Davis)
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