Patient safety and satisfaction with dexmedetomidine sedation during endoscopic oesophageal interventions

ISRCTN ISRCTN68599804
DOI https://doi.org/10.1186/ISRCTN68599804
EudraCT/CTIS number 2011-004206-19
Secondary identifying numbers NL36861.018.11
Submission date
03/04/2013
Registration date
16/04/2013
Last edited
08/03/2016
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Endoscopic treatment of early neoplastic lesions in the oesophagus has become a valid and less invasive alternative than surgical resection. These endoscopic interventions are minimal invasive treatment options usually done with sedation on an outpatient basis. The aim of this study is to determine how well dexmedetomidine sedation works compared to standard propofol/alfentanil sedation during endoscopic oesophageal interventions.

Who can participate?
Patients planned to undergo an elective endoscopic oesophagus intervention.

What does the study involve?
Participants are randomly allocated to one of two groups: Group 1 will receive sedation with propofol TCI/alfentanil by an anaesthesia nurse. Group 2 will receive dexmedetomidine by anaesthesia nurse. All patients will receive a validated questionnaire to fill in before and after the procedure. Additionally, endoscopists have to fill in a validated questionnaire. Patients also have to perform the Trieger dot test (combine points with a pen). The following day there is a phone interview with another questionnaire about satisfaction.

What are the possible benefits and risks of participating?
The study will help answer the question of ‘which form of sedation is most satisfying and safe for patients,’ and to improve sedation management for future patients. There are no additional risks of participating.

Where is the study run from?
AMC, Amsterdam, the Netherlands

When is the study starting and how long is it expected to run for?
July 2012 to August 2013

Who is funding the study?
AMC, Amsterdam, the Netherlands

Who is the main contact?
Prof Dr. Dr. M.W. Hollmann
M.W.Hollmann@amc.uva.nl

Contact information

Prof Markus Hollmann
Scientific

Academic Medical Centre, University of Amsterdam, Meibergdreef 9
Amsterdam
1100DD
Netherlands
Amsterdam
1100DD
Netherlands

Phone +31 (0)20 5669111
Email M.W.Hollmann@amc.uva.nl

Study information

Study designSingle-center randomized controlled study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet'
Scientific titleSafety and Effectiveness using DEXmedetomidine sedation versus propofol/alfentanil sedation during oesophagus interventions
Study acronymSEDEX
Study objectivesDexmedetomidine sedation is as safe as the standard sedation regime and results in satisfied patients.
Ethics approval(s)Medisch Ethische Toetsingscommissie Academisch Medisch Centrum, 12/01/2012, NL36861.018.11
Health condition(s) or problem(s) studiedElective endoscopic oesophageal interventions
InterventionThe study compares two strategies for sedation: Dexmedetomidine based sedation will be compared with propofol/alfentanil sedation both accomplished by an anaesthesia nurse.
All patients will receive a validated questionnaire to fill in before procedure and perform the Trieger test as a measure of psychomotoric recovery from sedation.
Additionally, endoscopists have to fill in a validated questionnaire.
Group 1 will receive sedation with propofol Target Controlled Infusion (TCI)/ alfentanil (100 µg) and group 2 with dexmedetomidine both supplied by an anesthesia nurse to achieve the targeted sedation score (Observer’s Assessment of Alertness/Sedation OAAS Scale < 4), which means the patients maximal lethargic response to their name spoken in normal tone. Patients in all three groups will be monitored using SO2, ECG, NIBP and capnography, non invasive cardiac output and sweat production/conduction. All patients will receive a face mask with 2l of oxygen from start of sedation till the end of the endoscopic procedure.
At arrival in the recovery room patients will be monitored by pulse oximetry (SO2), ECG and NIBP only.
All patients will stay in the recovery room for 2 hours. At arrival, 30 and 60 min later virtual discharge will be determined based on Aldrete Score.
Ready for discharge will be declared when an Aldrete Score of nine (9) or pre-procedure score is met.
The next day the patient is called at home to answer part 2 of the questionnaire.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Dexmedetomidine, Propofol, Alfentanil
Primary outcome measureWhich form of sedation is safer for the patient in regard to respiratory and cardiovascular problems? Surrogate parameters of pulmonary and cardiovascular problems are oxygen saturation (SO2) measured by pulse oximetry, exhaled CO2 (capnography), heart rate, arrhythmias (ECG) and blood pressure (non-invasive blood pressure measurement (NIBP) and non- invasive cardiac output measurement.
Secondary outcome measuresHow is the effectiveness of dexmedetomidine compared with propofol/alfentanil during oesophagus interventions? Surrogate parameters of effectiveness are satisfaction levels, pain score, sedation score (questionnaire for patients’ and gastroenterologists).
Overall study start date16/07/2012
Completion date01/08/2013

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants64
Key inclusion criteriaEligible patients for participation in this clinical trial are those planned to undergo elective endoscopic oesophagus intervention. The patients must comply with the following criteria in order to be eligible to participate in this clinical study:
1. Male and female, age range ≥ 18 years without upper age limit
2. ASA classification I – III
3. Written informed consent
Key exclusion criteria1. Age range < 18 years
2. ASA classification IV and V
3. Allergic reaction to planned medication in the patients’ medical history
4. Unregulated hypertension
5. Hypovolemia or hypotension (systolic blood pressure <80 or mean arterial pressure <50 mmHg)
6. Severe bradycardia (heart rate < 50/min) and / or related brady-dysrhythmias (e.g. advanced heart block)
7. Impaired ventricular function (left ventricular ejection fraction <30%)
8. Impaired renal function, GFR less than 15ml/min or undergoing hemodialysis
9. Impaired liver function
10. Substance abuse
Date of first enrolment16/07/2012
Date of final enrolment01/08/2013

Locations

Countries of recruitment

  • Netherlands

Study participating centre

Academic Medical Centre
Amsterdam
1100DD
Netherlands

Sponsor information

Academic Medical Centre (AMC) (Netherlands)
Hospital/treatment centre

Meibergdreef 9
Amsterdam
1100DD
Netherlands
Amsterdam
1100DD
Netherlands

Phone +31 (0)20 5669111
Email M.W.Hollmann@amc.uva.nl
ROR logo "ROR" https://ror.org/03t4gr691

Funders

Funder type

Hospital/treatment centre

Academisch Medisch Centrum
Private sector organisation / Universities (academic only)
Alternative name(s)
Academic Medical Center, AMC
Location
Netherlands

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article protocol 30/12/2013 Yes No
Results article results 01/09/2016 Yes No

Editorial Notes

08/03/2016: Publication reference added.