Premedication for Claustrophobic Patients for MRI Scan

January 23, 2025 updated by: Salem Anaesthesia Pain Clinic

Clonidine and Lorazepam Premedication for Claustrophobic Patients During MRI Scan

Claustrophobia is an irrational fear of restriction and suffocation. It is a specific phobia, according to DSM 5. Claustrophobic patients may fear that restriction of their limbs will hinder their ability to move quickly towards safety. MRI may trigger claustrophobia, because this diagnostic procedure involves a patient laying in a narrow tube. Premedication before MRI scan may occasionally reduce claustrophobia.

Prospective observational crossover study of claustrophobic patients who are undergoing MRI scan. At alternate MRI scan sessions, each patient receives rotational premedication using Lorazepam 1mg; or Clonidine tablet 0.2mg; or combined Clonidine 0.2mg + Lorazepam 1mg.

Patient will use Claustrophobia Questionnaire, a validated tool, to collect data on the days before and after each MRI scan. CLQ is a patient-administered tool used to assess claustrophobia. In addition, patient will use General Anxiety Disorder Questionnaire, a validated tool, to collect data on the days before and after each MRI scan. GAD-7 is a patient-administered tool that is used to assess anxiety.

Study Overview

Status

Recruiting

Conditions

Detailed Description

Claustrophobia is an irrational fear of constraint, restriction, immobility, smothering and suffocation. Claustrophobia is a specific phobia, according to the Diagnostic and Statistical Manual 5 (DSM 5). The disorder affects 5% of the general population. Claustrophobic patients may fear that the restriction of their limbs will hinder their ability to move quickly towards perceived safety. Magnetic resonance imaging (MRI) may trigger claustrophobia, because this diagnostic procedure involves a patient staying immobile in a narrow and noisy tube. Anxiolytic premedication before MRI scan, using Lorazepam, may occasionally help to reduce claustrophobia.

This is a prospective observational crossover study of claustrophobic adult patients who are undergoing MRI scan as part of chronic pain management. At alternate MRI scan sessions, each patient receives rotational premedication using Lorazepam 1mg; or Clonidine tablet 0.2mg; or combined Clonidine 0.2mg + Lorazepam 1mg.

The patient will use the Claustrophobia Questionnaire (CLQ), a special validated tool, to collect data on the days before and after each MRI scan. The CLQ is a patient-administered tool that is used to record the severity and presence of claustrophobia symptoms, on a measurement range of 0 to 104. A change in the CLQ scores by 12-points is considered significant. In addition, the patient will use the General Anxiety Disorder Questionnaire (GAD-7), a special validated tool, to collect data on the days before and after each MRI scan. The GAD-7 is a patient-administered tool that is used to record the severity and presence of anxiety symptoms, on a measurement range of 0 to 21. A change in the GAD-7 scores by 3-points is considered significant.

Data analyzed with IBM® SPSS® Statistics 25 (IBM Corp, Armonk, NY); using Student's t-test, ANOVA, Pearson Chi-square test, and regression analysis. P-value <0.05 is considered significant.

Study Type

Observational

Enrollment (Estimated)

50

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Canada
    • British Columbia
      • Surrey, British Columbia, Canada, V3S 7J1
        • Recruiting
        • Salem Anaesthesia Pain Clinic
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Adult claustrophobic patients who are undergoing MRI scan as part of chronic pain management. Previous incomplete MRI because of claustrophobia.

Description

Inclusion Criteria:

  • diagnosed with claustrophobia
  • previous incomplete MRI because of claustrophobia
  • adult patients
  • good treatment compliance
  • reliable Claustrophobia Questionnaire (CLQ) diary
  • reliable General Anxiety Disorder Questionnaire (GAD) diary
  • informed consent for diary review
  • consent for clinical record quality assurance review

Exclusion Criteria:

  • poor treatment compliance
  • cognitive disorder
  • inability to provide consent
  • major neuropsychiatric disorder
  • unreliable diary
  • cannabis use
  • excessive alcohol intake
  • previous adverse/allergic reactions to clonidine
  • previous adverse/allergic reactions to lorazepam

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Claustrophobic adult patients
Claustrophobic adult patients who are undergoing MRI scan as part of chronic pain management.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Rate of completion of MRI scan
Time Frame: 12 weeks
Patient is calm and cooperative, completes MRI scan
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Salem Anaesthesia Pain Clinic

Investigators

  • Principal Investigator: Olu Bamgbade, MD,FRCPC, Salem Anaesthesia Pain Clinic

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 4, 2020

Primary Completion (Estimated)

December 31, 2025

Study Completion (Estimated)

December 31, 2025

Study Registration Dates

First Submitted

May 5, 2023

First Submitted That Met QC Criteria

May 16, 2023

First Posted (Actual)

May 25, 2023

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

January 23, 2025

Last Verified

January 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SalemAnes2022 MRI Premedicate

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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