Panic disorder involves the experience of one or more panic attacks characterized by intense fear or discomfort.
A panic attack is defined as:
A discrete period of intense fear or discomfort, typically peaking within minutes (not longer than 10 minutes).
Symptoms experienced may include:
Palpitations or pounding heart
Accelerated heart rate
Sweating
Trembling or shaking
Shortness of breath or feeling smothered
Choking sensations
Numbness or tingling sensations
Chills or hot flashes
Dizziness, unsteadiness, lightheadedness, or fainting
Nausea or abdominal distress
Chest pain or discomfort
Derealization (disconnect from reality)
Depersonalization (disconnect from sense of self or body)
Fear of losing control or going crazy
Fear of dying
Duration and Behavioral Changes
Following a panic attack, individuals may experience a month or more of:
Worry about having more attacks
Consequences of those attacks
Significant behavior change that could involve avoiding situations that might trigger panic.
The attacks can feel unexpected and may appear to come with no identifiable cause, which complicates the individual's experience.
Panic Attack Triggers
Panic attacks may often be linked to identifiable triggers, similar to how phobias trigger anxiety. Clinicians often work to identify these triggers.
Important to classify behaviors as an understandable reaction to the panic experience rather than baseless fear.
Differential Diagnosis - Rule Outs
It is crucial to distinguish panic disorder from other medical conditions that may produce similar symptoms:
Thyroid Issues:
Hypothyroidism can manifest as lethargy and sadness.
Hyperthyroidism is characterized by heightened arousal and can mimic panic symptoms; easily tested medically.
Cardiac Issues:
Arrhythmias or heart irregularities (e.g., mitral valve prolapse) may cause symptoms resembling panic attacks.
Stimulant Intoxication:
Excessive caffeine consumption or medications like Ritalin or amphetamines can lead to similar experiences.
Epidemiology
Panic disorder is relatively common among college students, typically commencing in individuals' mid-20s to early 30s as life becomes more challenging.
Prevalence statistics:
Lifetime prevalence estimated at 3.5%.
Higher reporting seen in females than males, but this is largely attributed to increased symptom reporting rather than an actual prevalence difference.
Agoraphobia
Definition of Agoraphobia
Agoraphobia is a distinct disorder characterized by a fear of leaving home or being in situations where escape might be difficult.
Common fears include:
Using public transportation
Being in enclosed spaces
Standing in line or being in a crowd
Being outside the home alone
Criteria for Diagnosis
Criterion A: Definition of agoraphobia involves a fear of being in situations where panic-like symptoms might occur.
Criterion B:
Avoidance of situations due to the fear of inability to escape or lack of available help during panic-like symptoms.
Approximately 95% of individuals with agoraphobia report having experienced panic attacks or limited symptom panic attacks.
Understanding Limited Symptom Panic Attacks
Limited symptom panic attacks resemble panic attacks but do not meet full diagnostic criteria.
They also may result in the avoidance behaviors characteristic of agoraphobia.
Example scenario: A person experiences overwhelming anxiety in a crowded mall, leading to avoidance of malls and similar situations.
Other Factors Leading to Agoraphobia
Although often linked with panic disorder, agoraphobia can emerge from:
Severe trauma
Severe obsessive-compulsive disorder (OCD) where contamination fears lead to not leaving the house.
Treatment of Panic Disorder
Psychological Interventions
Treatment primarily involves psychological strategies to manage panic symptoms:
Relaxation Training:
Aims to engage the parasympathetic nervous system to counteract heightened sympathetic arousal (stress response).
Techniques may include:
Muscle relaxation
Breathing exercises (belly breathing vs. rapid chest breathing).
Cognitive Behavioral Work:
Addresses misinterpretations of panic cues (e.g., sweating interpreted as an impending panic attack).
Induction of Panic for Therapeutic Purposes
It is noted that panic can be induced in individuals without a panic history through certain physical mechanisms:
Example: Breathing in carbon dioxide as a demonstration leads to panic-like symptoms like those experienced in an attack.
Exposure Therapy
Gradual exposure to situations that trigger panic attacks, often in conjunction with relaxation and cognitive techniques can be effective, as demonstrated through patient scenarios (e.g., elevators, subways).
Education and Reassurance
Educating patients about the nature of panic attacks can significantly reduce fear and anxiety.
Key Messages:
Panic is a physiological response; individuals will not die from it.
Understanding can decrease anticipated arousal and anxiety, thus reducing the incidence of panic attacks.