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Randomized Controlled Trial Comparing Water vs. Air Method for Performing Colonoscopy in Adult Female Subjects

26. juni 2017 opdateret af: University of California, Davis

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.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

200

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • California
      • Sacramento, California, Forenede Stater, 95817
        • University of California, Davis

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 80 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 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.
Procedure: to infuse water into colon to open the lumen for water infusion colonoscopy
Andre navne:
  • Water colonoscopy
Aktiv komparator: 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
Procedure: Air colonoscopy

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Cecal intubation
Tidsramme: Three years
Examination of the cecum by endoscopy
Three years

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Amount of opiate and benzodiazepines used for sedation.
Tidsramme: Three years
The total amount of opiate (either demerol of fentanyl) used for sedation.
Three years

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Patient discomfort Patient pain rating during and after procedure
Tidsramme: Three years
Patient's pain score (on a 1-10 scale) during and after the procedure.
Three years

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of California, Davis

Efterforskere

  • Ledende efterforsker: Surinder Mann, M.D., UCD

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. august 2011

Primær færdiggørelse (Faktiske)

1. marts 2015

Studieafslutning (Faktiske)

1. marts 2015

Datoer for studieregistrering

Først indsendt

17. januar 2013

Først indsendt, der opfyldte QC-kriterier

11. februar 2013

Først opslået (Skøn)

13. februar 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

27. juni 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

26. juni 2017

Sidst verificeret

1. juni 2017

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 319719
  • UCD IRB # 319719 (Anden identifikator: UC Davis)

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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