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Ambulatory Patients Referred for a First-time ColonoscopyNCT02220530

Sedation Effect on the Global Quality Colonoscopy

An observational study of Ambulatory Patients Referred for a First-time Colonoscopy, run by Hospital San Juan de Dios Tenerife at 1 site in Spain.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study aims to assess the impact of the use of sedation on the overall quality of the colonoscopy, therefore addressing each and every one of its dimensions, namely: scientific and technical quality, perceived quality and safety. Read more about this study

Who is it for?
Ages 18 to 75 yearsHealthy volunteers can take part
What is being tested?
Conscious sedation with iv midazolam and fentanyl.
Type of treatment
Injection or infusion
How many people
7,000 participants
Where
1 siteSpain
Study dates
Oct 2014to Nov 2015
How long will I take part?
30 Days
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Prospective case-control study. The study will include . Patients will be excluded when they have had previous colonoscopies, have an anesthetic risk above ASA III, allergy to the drugs used or if they are undergoing antiplatelet or anticoagulant therapy contraindicated for the procedure

Who may be able to join

  • Consecutive ambulatory patients referred to our Endoscopy Unit for a first-time colonoscopy.

Who cannot join

  • Patients with previous colonoscopies.
  • Patients with anesthetic risk above ASA III,
  • Patients with allergy to the drugs used.
  • Patients undergoing antiplatelet or anticoagulant therapy.
  • Pregnant woman.
  • Patients unable to understand the questionnaires.

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Htal. Universitario Ntra. Sra. de Candelaria

    Santa Cruz de Tenerife, Santa Cruz de Tenerife, 38010

Other trials in Spain

About this study

This study aims to assess the impact of the use of sedation on the overall quality of the colonoscopy, therefore addressing each and every one of its dimensions, namely: scientific and technical quality, perceived quality and safety.

Read the detailed description

In recent decades there has been a notable increase in the use of a range of gastrointestinal endoscopy procedures - colonoscopy particularly -, more so in recent years with the implementation of colorectal cancer screening programs.

Colonoscopy can cause discomfort and even pain. In order to reduce these effects and facilitate the procedure, patients are usually administered iv sedation.

Numerous studies have assessed the impact of sedation on patient discomfort and anxiety, on the undesirable effects of the colonoscopy, and even on certain aspects relating to its scientific and technical quality. There have not, however, been any studies evaluating the effects of sedation on the overall quality of the procedure.

The overall quality of every medical act can be defined according to four dimensions: accessibility, or how easily the patient can obtain the assistance required without physical or bureaucratic barriers; scientific and technical quality, or the provision of the best possible assistance with the most up-to-date knowledge and technical resources; perceived quality, or the patient's degree of satisfaction with the care provided; and safety, or the absence of undesirable side effects. Doctors have typically assessed the quality of a procedure based on its scientific and technical quality and its safety. The investigators have strived to conduct good, complication-free techniques based on cutting-edge scientific knowledge, but have often overlooked the other dimensions.

This study aims to assess the impact of the use of sedation on the overall quality of the colonoscopy, therefore addressing each and every one of its dimensions, namely: scientific and technical quality, perceived quality and safety. Since sedation during the procedure has no impact on accessibility, the study will not assess this dimension.

Subjects and Methods:

Prospective case-control study. The study will include consecutive ambulatory patients referred to our Endoscopy Unit for a first-time colonoscopy. Patients will be excluded when they have had previous colonoscopies, have an anesthetic risk above ASA III (American Society of Anesthesia classifications) allergy to the drugs used or if they are undergoing antiplatelet or anticoagulant therapy contraindicated for the procedure, pregnant woman and patients unable to understand the questionnaires.

Prior to inclusion demographic data, clinical background and indication for the colonoscopy will be collected on each patient.

Thereafter patients will be randomly assigned to colonoscopy without sedation or with conscious sedation with iv midazolam and fentanyl dosed according to age, weight and baseline conditions.

The procedures will be conducted by four endoscopists with ample experience in endoscopy and sedation (over 7000 colonoscopies each).

  1. Data collected during the endoscopy will include:
  2. The degree of cleanliness of the colon according to the Boston scale; defined as the adequate preparation of at least 2 points in each region of the colon);
  3. Whether or not colonoscopy is completed up to the cecum;
  4. Time needed for insertion up to the cecum and for withdrawal;
  5. The complications that might arise during the procedure and recovery period (early complications). To this end, patients' oxygen saturation and heart rate will be continuously monitored from the beginning of the procedure until their discharged and their blood pressure will be taken every 5 minutes. Non-sedated patients will be discharged from the Unit immediately after the procedure, and sedated patients when they reach a score of 9 or 10 on the Aldrete scale.
  6. Adenomas resected, based on pathology reports. All of the biopsies will be examined by a pathologist specialized in gastrointestinal pathology.
  7. Thirty days after the Endoscopy, patients will be interviewed by telephone by staff with no involvement in the study (call center) and asked to respond to two questionnaires.
  8. The ASGE (American Society of Gastrointestinal Endoscopy) endoscopy satisfaction survey (GHAA 9-me), previously translated into Spanish and validated by our team.
  9. A survey on complications suffered in the 30 days following the procedure (late complications), previously used in earlier studies.
  10. Assessment of quality criteria:
  11. Six indicators will be used to assess the scientific and technical quality of each procedure. The first three will assess their technical aspects: percentage of colonoscopies completed up to the cecum; time required to reach the cecum; and withdrawal time. The remaining three are results indicators: percentage of patients with adenomas; total number of adenomas per patient; and total number of advanced adenomas. These indicators were previously validated in our setting. Since the use or not of sedation during the procedure does not affect the cleanliness of the colon, this indicator will be used as a control variable.
  12. Perceived quality will be assessed using the ASGE (American Society of Gastrointestinal Endoscopy) satisfaction survey, previously translated into Spanish and adapted and validated. Total scores, scores for the procedure (item 7 on the survey) and the number of patients rating the procedure "excellent" will be analyzed.
  13. Safety will be assessed following the same method used in previous research, analyzing early complications (those occurring during the procedure and recovery phase) and late complications (those occurring in the 30 days after the procedure).

Statistical Analyses:

Results will be expressed as mean ± standard deviation. Comparisons between groups will be performed using the Chi-squared test for ordinal variables and Student's t-test for quantitative variables. Results with a p value <0.05 will be considered statistically significant. Logistic regression will be used to determine the impact of sedation on the quality indicators studied.

Being tested
Conscious sedation with iv midazolam and fentanyl.
Keywords
Sedation., Colonoscopy quality., Scientific and technical quality., Perceived quality (patient's satisfaction)., Safety

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Conscious sedation with iv midazolam and fentanyl.Drug

    Also called Control group: Colonoscopies performed without sedation.

    Sedation group: Conscious sedation with iv midazolam and fentanyl dosed according to age, weight and baseline conditions of the patients.

Study groups in NCT02220530
Study groupRoleWhat they receive
Sedation groupColonoscopies performed with conscious sedation with iv midazolam and fentanyl
Receives: Drug: Conscious sedation with iv midazolam and fentanyl.
Control groupColonoscopies performed without sedation.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of colonoscopies completed up to the cecum.

    Colonoscopy in which the cecum is reached per hundred colonoscopy performed

    Measured: During colonoscopy

  2. Time required to reach the cecum

    Time used to complete colonoscopy (in minutes)

    Measured: During colonoscopy

  3. Endoscopic withdrawal time

    Time used (in minutes) to endoscopic withdrawal.

    Measured: During colonoscopy

  4. Adenomas resected

    Number of adenomas resected

    Measured: During colonoscopy

  5. Perceived quality (patients satisfaction).

    ASGE (American Society of Gastrointestinal Endoscopy) endoscopy satisfaction survery score (GHAA 9-me).

    Measured: Thirty days after colonoscopy

  6. Early complications.

    Complications occurring during the procedure and recovery phase.

    Measured: During colonoscopy.

  7. Late complications.

    Complications occurring in the 30 days after the procedure).

    Measured: Thirty days after colonoscopy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Aug 2014 (estimated)
  2. Study startOct 2014
  3. Primary completionOct 2015 (estimated)
  4. Study completionNov 2015 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
7,000 participants (estimated)
Target duration
30 Days
IDs, dates and publications
ClinicalTrials.gov ID
NCT02220530
Sponsor's protocol ID
HSJD-1
Status last verified
Aug 2014
First submitted
7 Apr 2013
Last updated
20 Aug 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Gellad ZF, Weiss DG, Ahnen DJ, Lieberman DA, Jackson GL, Provenzale D. Colonoscopy withdrawal time and risk of neoplasia at 5 years: results from VA Cooperative Studies Program 380. Am J Gastroenterol. 2010 Aug;105(8):1746-52. doi: 10.1038/ajg.2010.107. Epub 2010 Mar 16.

    PubMed 20234348
  • Bannert C, Reinhart K, Dunkler D, Trauner M, Renner F, Knoflach P, Ferlitsch A, Weiss W, Ferlitsch M. Sedation in screening colonoscopy: impact on quality indicators and complications. Am J Gastroenterol. 2012 Dec;107(12):1837-48. doi: 10.1038/ajg.2012.347. Epub 2012 Nov 13.

    PubMed 23147522
  • Rex DK, Petrini JL, Baron TH, Chak A, Cohen J, Deal SE, Hoffman B, Jacobson BC, Mergener K, Petersen BT, Safdi MA, Faigel DO, Pike IM; ASGE/ACG Taskforce on Quality in Endoscopy. Quality indicators for colonoscopy. Am J Gastroenterol. 2006 Apr;101(4):873-85. doi: 10.1111/j.1572-0241.2006.00673.x. No abstract available.

    PubMed 16635231
  • Rex DK. Quality in colonoscopy: cecal intubation first, then what? Am J Gastroenterol. 2006 Apr;101(4):732-4. doi: 10.1111/j.1572-0241.2006.00483.x.

    PubMed 16635220
  • Baudet JS, Aguirre-Jaime A. The sedation increases the acceptance of repeat colonoscopies. Eur J Gastroenterol Hepatol. 2012 Jul;24(7):775-80. doi: 10.1097/MEG.0b013e32835376a2.

    PubMed 22522140
  • Sanchez Del Rio A, Baudet JS, Naranjo Rodriguez A, Campo Fernandez de Los Rios R, Salces Franco I, Aparicio Tormo JR, Sanchez Munoz D, Llach J, Hervas Molina A, Parra-Blanco A, Diaz Acosta JA; los miembros del Grupo de Calidad en Endoscopia de la Asociacion Espanola de Gastroenterologia. [Development and validation of quality standards for colonoscopy]. Med Clin (Barc). 2010 Jan 30;134(2):49-56. doi: 10.1016/j.medcli.2009.07.047. Epub 2009 Nov 14. Spanish.

    PubMed 19913837
  • Baudet JS, Borque P, Borja E, Alarcon-Fernandez O, Sanchez-del-Rio A, Campo R, Aviles J. Use of sedation in gastrointestinal endoscopy: a nationwide survey in Spain. Eur J Gastroenterol Hepatol. 2009 Aug;21(8):882-8. doi: 10.1097/MEG.0b013e328314b7ca.

    PubMed 19352194
  • Baudet JS, Diaz-Bethencourt D, Aviles J, Aguirre-Jaime A. Minor adverse events of colonoscopy on ambulatory patients: the impact of moderate sedation. Eur J Gastroenterol Hepatol. 2009 Jun;21(6):656-61. doi: 10.1097/MEG.0b013e328314b7e3.

    PubMed 19300274
  • Del Rio AS, Baudet JS, Fernandez OA, Morales I, Socas Mdel R. Evaluation of patient satisfaction in gastrointestinal endoscopy. Eur J Gastroenterol Hepatol. 2007 Oct;19(10):896-900. doi: 10.1097/MEG.0b013e3281532bae.

    PubMed 17873615
  • Sanchez del Rio A, Alarcon Fernandez O, Baudet JS, Sainz Menendez Z, Socas Mendez M. Reliability of the Spanish version of a brief questionnaire on patient satisfaction with gastrointestinal endoscopy. Rev Esp Enferm Dig. 2005 Aug;97(8):554-61. doi: 10.4321/s1130-01082005000800003. English, Spanish.

    PubMed 16266222
  • Kahi CJ, Ballard D, Shah AS, Mears R, Johnson CS. Impact of a quarterly report card on colonoscopy quality measures. Gastrointest Endosc. 2013 Jun;77(6):925-31. doi: 10.1016/j.gie.2013.01.012. Epub 2013 Mar 6.

    PubMed 23472996
  • Valori R, Rey JF, Atkin WS, Bretthauer M, Senore C, Hoff G, Kuipers EJ, Altenhofen L, Lambert R, Minoli G; International Agency for Research on Cancer. European guidelines for quality assurance in colorectal cancer screening and diagnosis. First Edition--Quality assurance in endoscopy in colorectal cancer screening and diagnosis. Endoscopy. 2012 Sep;44 Suppl 3:SE88-105. doi: 10.1055/s-0032-1309795. Epub 2012 Sep 25.

    PubMed 23012124
  • Williams JE, Holub JL, Faigel DO. Polypectomy rate is a valid quality measure for colonoscopy: results from a national endoscopy database. Gastrointest Endosc. 2012 Mar;75(3):576-82. doi: 10.1016/j.gie.2011.12.012.

    PubMed 22341104
  • Lee TJ, Rutter MD, Blanks RG, Moss SM, Goddard AF, Chilton A, Nickerson C, McNally RJ, Patnick J, Rees CJ. Colonoscopy quality measures: experience from the NHS Bowel Cancer Screening Programme. Gut. 2012 Jul;61(7):1050-7. doi: 10.1136/gutjnl-2011-300651. Epub 2011 Sep 22.

    PubMed 21940723
  • Imperiali G, Minoli G, Meucci GM, Spinzi G, Strocchi E, Terruzzi V, Radaelli F. Effectiveness of a continuous quality improvement program on colonoscopy practice. Endoscopy. 2007 Apr;39(4):314-8. doi: 10.1055/s-2006-945196. Epub 2007 Feb 1.

    PubMed 17273959

Questions about this trial

What is this clinical trial studying?

An observational study of Ambulatory Patients Referred for a First-time Colonoscopy, run by Hospital San Juan de Dios Tenerife at 1 site in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 20 Aug 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of colonoscopies completed up to the cecum. (time frame: During colonoscopy). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02220530, which also lists 15 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Aug 2014.

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