Claustrophobia: Fear of Confined Spaces - Symptoms and Treatment

Claustrophobia: An Anxiety Disorder

Claustrophobia = marked fear/anxiety triggered by enclosed spaces (elevators, MRI, tunnels, small rooms, crowded places). A specific phobia (DSM-5: 300.29).

Symptoms

• Panic attack symptoms: palpitations, sweating, trembling, dyspnea, chest tightness, nausea, dizziness, fear of losing control/dying.
• Anticipatory anxiety, avoidance behaviors (taking stairs, avoiding travel).
• Functional impairment (occupational, social, medical non-adherence e.g., refusing MRI).

Causes

• Traumatic conditioning (entrapment, near-drowning).
• Observational learning, informational transmission.
• Genetic predisposition (anxiety disorders heritable).
• Amygdala hyperreactivity to threat cues.

Treatment

• CBT with exposure therapy (gold standard): Gradual in vivo or virtual reality exposure to feared spaces + cognitive restructuring.
• Medication: SSRIs for comorbid anxiety; benzodiazepines PRN for acute situations (e.g., necessary MRI).
• Relaxation training: Diaphragmatic breathing, progressive muscle relaxation.

Highly treatable; most achieve significant improvement with CBT.