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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT01318044
Other study ID # UCCK-30
Secondary ID
Status Recruiting
Phase Phase 1/Phase 2
First received March 11, 2011
Last updated March 17, 2011
Start date January 2011
Est. completion date May 2011

Study information

Verified date January 2011
Source University Clinical Centre of Kosova
Contact Antigona Hasani, MD, MSC
Phone +37744402781
Email antigona.hasani@gmail.com
Is FDA regulated No
Health authority Kosovo: Medical Faculty Ethical Board
Study type Interventional

Clinical Trial Summary

Magnetic resonance imagining (MRI) in children requires sedation to achieve the degree of cooperation or immobilization, necessary to complete these procedures successfully. In this study the investigators analyze two most popular anesthetics used for this procedure, sodium thiopental and propofol. The aim of this study is to determine optimal dose of propofol and thiopental during MRI and to establish safety and efficacy of these drugs.


Description:

This prospective, randomize, double-blind study will include 100 children, aged 6 month-12 years with ASA physical status I-II.

Children older than 3 years of age shall consume nothing by mouth (NPO) for solids and milk for at least 8 hours and children 6 months-3 years of age are NPO for solids and milk for 6 hours. Children will be allowed to receive breast milk until 4 hours before the beginning of the sedation. All the children will be allowed to take clear liquids up until 2 hours before the beginning of the sedation. To facilitate IV drug administration, EMLA cream will be applied on the dorsum of both hands 1 h before transfer to the preparation room.

Presedation behavior will be assessed on a 4-point scale, (by an anesthesiologist 1; who does not know which drug is administered): 1 = calm, cooperative; 2 = anxious but reasonable; 3 = anxious and not reasonable; 4 = crying or resisting. Categories 1 and 2 will be called "nondistressed behavior," and categories 3 and 4 will be defined as "distressed behavior." Patients will receive: group I; propofol 0.5 mg/kg or group II; thiopental 2.0 mg/kg, for anesthetic induction. After initial dose of the drug the sedation level of the children will be measured by the anesthesiologist 2 using the University of Michigan Sedation Scale (UMSS). The UMSS assigns a score of 0-4 based on the clinical assessment of the level of sedation as follows: 0 = awake and alert; 1 = minimally sedated: tired/sleepy, appropriate response to verbal conversation and/or sound; 2 = moderately sedated: somnolent/sleeping, easily aroused with light tactile stimulation or a simple verbal command; 3 = deeply sedated: deep sleep, arousable only with significant physical stimulation, and 4 = unarousable. Scores 3 will be accepted as procedural sedation and 4 will be accepted as deep sedation.

If a UMSS score of 3 will not be achieved after initial dose of propofol and thiopental, supplementary boluses of drugs will be added.

Mean arterial blood pressure (MAP), heart rate (HR), peripheral oxygen saturation (Spo2), and respiratory rate (RR) will be monitored continuously and be recorded at 5-min intervals during the study period by anesthesiologist 1. Patients will be allowed to breathe spontaneously without an artificial airway throughout the procedure. Oxygen will be administered via facemask.

Quality of the MRI will be evaluated by a radiologist using a three-point scale (1 = no motion; 2 = minor movement; 3 = major movement necessitating another scan).

Recovery time will be accepted as the period of time between the ends of MRI scan and reaching a UMSS score of 2 (by an anesthesiologist 2).

Side effects (apnea, nausea, vomiting, laryngospasm, emergence agitation) could occur during and after sedation will be recorded.


Recruitment information / eligibility

Status Recruiting
Enrollment 100
Est. completion date May 2011
Est. primary completion date April 2011
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 6 Months to 12 Years
Eligibility Inclusion Criteria:

- Patient is 6 months - 12 years old

- Patient is scheduled for MRI at University Clinical center of Kosovo

- Patients is ASA I/II

- Patient meets criteria to receive either propofol or thiopental sedation

- Patient's parent/guardian provides written consent

Exclusion Criteria:

- Patients with ASA > II

- Patients with airway abnormalities

- Patients with known allergies to the study drugs

- Parent/guardian refusal of participation

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Drug:
Propofol and Thiopental
An initial bolus of 0.5 mg/kg of propofol will be administered over 1 minute. Supplementary boluses of propofol will be added until the UMSS score 3 are achieved. An initial bolus of 2 mg/kg of thiopental will be administered over 1 minute. Supplementary boluses of thiopental will be added until the UMSS score 3 are achieved

Locations

Country Name City State
Albania University Clinical Center of Kosovo Tirana Kosovo

Sponsors (1)

Lead Sponsor Collaborator
University Clinical Centre of Kosova

Country where clinical trial is conducted

Albania, 

References & Publications (1)

1. Malvija S, Voepel -Lewis T, Eldevik OP, Rockwell DT, Wong JH, Tait AR. Sedation and general anaesthesia in children undergoing MRI and CT: adverse events and outcomes. Br J A naesth 2000; 84: 743-8. 2. Malviya S, Voepel-Lewis T, Tait AR, Merkel S, Tremper K, Naughton N. Depth of sedation in children undergoing computed tomography: validity and reliability of the University of Michigan Sedation Scale (UMSS). Br J Anaesth. 2002 ;88:241-5. 3. Koroglu A, Teksan H, Sagir O, Yucel A, Toprak HI, Ersoy OM. A comparison of the sedative, hemodynamic, and respiratory effects of dexmedetomidine and propofol in children undergoing magnetic resonance imaging. Anesth Analg. 2006;103:63-7.

Outcome

Type Measure Description Time frame Safety issue
Primary presedation behavior Presedation behavior will be assessed on a 4-point scale, (by an anesthesiologist 1; who does not know which drug is administered): 1 = calm, cooperative; 2 = anxious but reasonable; 3 = anxious and not reasonable; 4 = crying or resisting. Categories 1 and 2 will be called "nondistressed behavior," and categories 3 and 4 will be defined as "distressed behavior." day of sedation (day 1) No
Secondary to determine optimal dose of propofol and thiopental during MRI The UMSS assigns a score of 0-4 based on the clinical assessment of the level of sedation as follows: 0 = awake and alert; 1 = minimally sedated: tired/sleepy, appropriate response to verbal conversation and/or sound; 2 = moderately sedated: somnolent/sleeping, easily aroused with light tactile stimulation or a simple verbal command; 3 = deeply sedated: deep sleep, arousable only with significant physical stimulation, and 4 = unarousable. Scores 3 will be accepted as procedural sedation and 4 will be accepted as deep sedation. day of sedation (day 1) No
Secondary UMSS score day of sedation (day 1) No
Secondary Side effects of sedation Side effects (apnea, nausea, vomiting, laryngospasm, emergence agitation) could occur during and after sedation will be recorded. day of sedation (day 1) No
Secondary recovery times Recovery time will be accepted as the period of time between the ends of MRI scan and reaching a UMSS score of 2 (by an anesthesiologist 2). day of sedation (day 1) No
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