Overview
Claustrophobia is an anxiety disorder characterized by intense fear and discomfort in confined spaces, significantly impacting the completion of magnetic resonance imaging (MRI) procedures and often necessitating sedation 157.Diagnosis
Identification of anxiety disproportionate to the situation during MRI preparation or execution 57.
Use of validated anxiety scales such as the Spielberger State-Trait Anxiety Inventory and visual analogue scales for assessment 24.
Clinical history and patient self-report are crucial for diagnosis 5.Management
First-line treatments:
- Ambient audiovisual experiences (AE systems) to reduce anxiety and need for sedation 1.
- Low-dose intranasal midazolam (1-2 mg) administered immediately before MRI to improve tolerance and reduce anxiety 346.
Adjunctive treatments:
- Propofol or dexmedetomidine for procedural sedation when non-pharmacological methods are insufficient 2. Dexmedetomidine may require longer time to achieve anxiolysis compared to propofol 2.Special Populations
Pediatrics: Not specifically addressed in the provided abstracts.
Elderly: Not specifically addressed in the provided abstracts.
Comorbidities: No specific recommendations for patients with comorbidities; intranasal midazolam appears safe but requires monitoring for side effects like nasal mucosa burning 46.Key Recommendations
Implement ambient audiovisual experiences in MRI environments to decrease claustrophobia-related discontinuation rates and sedation needs (Evidence: Moderate 1).
Consider low-dose intranasal midazolam (1-2 mg) as a first-line pharmacological intervention for claustrophobic patients undergoing MRI to enhance tolerance and image quality (Evidence: Moderate 346).
For patients requiring sedation, propofol may be preferred over dexmedetomidine due to quicker anxiolysis and higher success rates in completing MRI scans (Evidence: Moderate 2).References
1 Yan T, Ooi CC, Qiu D, Wong J, Chang C, Kheok SW. Using ambient audiovisual experiences to reduce the need for sedation in claustrophobic MRI patients. Radiography (London, England : 1995) 2025. link
2 Loh PS, Ariffin MA, Rai V, Lai LL, Chan L, Ramli N. Comparing the efficacy and safety between propofol and dexmedetomidine for sedation in claustrophobic adults undergoing magnetic resonance imaging (PADAM trial). Journal of clinical anesthesia 2016. link
3 Tschirch FT, Göpfert K, Fröhlich JM, Brunner G, Weishaupt D. Low-dose intranasal versus oral midazolam for routine body MRI of claustrophobic patients. European radiology 2007. link
4 Hollenhorst J, Münte S, Friedrich L, Heine J, Leuwer M, Becker H et al.. Using intranasal midazolam spray to prevent claustrophobia induced by MR imaging. AJR. American journal of roentgenology 2001. link
5 Absar L. Claustrophobia in magnetic resonance imaging. The Canadian journal of medical radiation technology 1993. link
6 Moss ML, Buongiorno PA, Clancy VA. Intranasal midazolam for claustrophobia in MRI. Journal of computer assisted tomography 1993. link
7 Granet RB, Gelber LJ. Claustrophobia during MR imaging. New Jersey medicine : the journal of the Medical Society of New Jersey 1990. link