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CompletedNCT01434927Updated Sep 15, 2011

The Clinical Acceptability of Unsedated Colonoscopy

An observational study in Colonoscopy, sponsored by Valduce Hospital. Completed at 1 site in Italy. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2011-09-15.

Sponsored by Valduce Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
964
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The study was aimed to prospectively evaluate the acceptance rate of unsedated colonoscopy, in a setting where routine sedation for colonoscopy is standard practice and to characterize the subset of patients willing to try and potentially completing an unsedated procedure.

Read the detailed description

Patients were offered to undergo colonoscopy without routine premedication. In case of both acceptance and refusal, a brief questionnaire recording demographics (gender, age, level of education) and clinical features was prospectively recorded in a standard data sheet by one of the four endoscopists at enrollment. Clinical features recorded for each patient included: indication to the procedure, history of abdominal surgery or irritable bowel syndrome, presence of pain as main symptom, chronic use of sedative medications, level of patient's anxiety (none, mild, moderate or severe), main concern about the examination and reason for willing to attempt unsedated procedure.

02

Conditions studied

  • Colonoscopy
03

In context

Lead sponsor

Valduce Hospital is the lead sponsor of 26 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

all consecutive 18-80 year-old outpatients presenting to undergo open-access colonoscopy for routine indications were considered eligible to enter the study.

Inclusion criteria

  • adult outpatients

Exclusion criteria

Exclusion Criteria:

  1. previous colorectal surgery
  2. indication to a bi-directional endoscopy
  3. indication to a partial examination
  4. patients' refusal or inability to provide informed consent and
  5. advanced heart, lung, liver or renal disease (American Society of Anesthesiology risk class III-IV)
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
964 participants (actual)

Groups and cohorts

  • Colonoscopy outpatients

    All patients referred to our Unit to undergo colonoscopy for any indication

    Procedure: Unsedated colonoscopy

Interventions

  • ProcedureUnsedated colonoscopy

    Patients were offered to undergo colonoscopy without routine premedication

  • ProcedureUnsedated colonoscopy

    Patients were offered to undergo unsedated procedure. Their demographics and clinical data were recorded

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What researchers measure

Primary outcomes

  1. ODDS ratio for unsedated colonoscopy acceptance

    Multivariate analysis was used to assess the association of dempgraphics (gender, age, level of education) and clinical features (indication to the procedure, history of abdominal surgery or irritable bowel syndrome, presence of pain as main symptom, chronic use of sedative medications, level of patient's anxiety (none, mild, moderate or severe), main concern about the examination and reason for willing to attempt unsedated procedure) to the acceptance of unsedated colonoscopy

    Time frame: up to 8 months

Secondary outcomes

  1. Acceptance rate of unsedated colonoscopy

    Proportion of patients accepting to attempt colonoscopy without routine premedication

    Time frame: up to 8 months

  2. ODDS ratios for unsedated colonoscopy completion

    Multivariate analysis was used to assess the association of dempgraphics (gender, age, level of education) and clinical features (indication to the procedure, history of abdominal surgery or irritable bowel syndrome, presence of pain as main symptom, chronic use of sedative medications, level of patient's anxiety (none, mild, moderate or severe), main concern about the examination and reason for willing to attempt unsedated procedure) to the completion of unsedated colonoscopy

    Time frame: up to 8 months

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Study locations

1 site
  • Vadluce Hospital
    Como, 22100, Italy
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 15, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01434927
Lead sponsor
Valduce Hospital
Responsible party
Franco Radaelli (Principal Investigator, MD, Valduce Hospital) — Principal investigator
First posted
Sep 15, 2011
Start date
Oct 2009
Primary completion
Apr 2010
Completion
Apr 2010
Last update
Sep 15, 2011

Study contacts

Franco Radaelli, MD
principal investigator · Valduce Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2011. You cannot join it, but the record below documents what was studied.

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