The Relationship between Expressive/Suppressive Hostility Behavior and Cardiac Autonomic Activations in Patients with...

Area of Science:

• Cardiology
• Psychosocial Health
• Autonomic Nervous System

Background:

• Hostility is a known psychosocial risk factor for coronary artery disease (CAD).
• Previous research linked expressive and suppressive hostility to cardiovascular responses in healthy individuals.
• The specific impact of these hostility behaviors on cardiac autonomic activation in CAD patients is not well understood.

Purpose of the Study:

• To investigate the relationship between expressive and suppressive hostility behaviors and cardiac autonomic activation in patients with coronary artery disease.
• To determine if distinct patterns of autonomic response exist based on hostility expression in CAD.

Main Methods:

• Seventy-six patients diagnosed with coronary artery disease (CAD) participated in the study.
• A hostility inventory was administered, followed by tasks involving recall of neutral and anger-related events.
• Cardiovascular responses (heart rate, blood pressure) and cardiac autonomic activation (heart rate variability) were measured.

Main Results:

• Patients with expressive hostility exhibited heightened cardiovascular autonomic activation during neutral and anger recall.
• These patients also showed reduced parasympathetic activation following anger recall.
• Individuals with suppressive hostility displayed concurrent sympathetic and parasympathetic activation at baseline and during recovery, alongside elevated parasympathetic response.

Conclusions:

• The findings support extending the cardiac autonomic activation model to encompass both expressive and suppressive hostility behaviors in CAD patients.
• Distinct autonomic responses associated with different hostility types may have implications for understanding CAD pathophysiology and management.