Assessment of arterial stiffness among schizophrenia-spectrum disorders using aortic pulse wave velocity and arterial...

Area of Science:

• Cardiology
• Psychiatry
• Vascular Biology

Background:

• Cardiovascular disease (CVD) is the primary cause of mortality in individuals with chronic schizophrenia.
• Arterial stiffness is a validated, non-invasive marker for predicting CVD morbidity and mortality.
• Arterial stiffness has not been previously assessed in patients with schizophrenia.

Purpose of the Study:

• To investigate aortic pulse wave velocity (aPWV) and large/small artery compliance (Comp1, Comp2) in schizophrenia patients compared to healthy controls.
• To establish a baseline for arterial stiffness parameters in this understudied population.
• To explore correlations between arterial stiffness and clinical factors in schizophrenia patients.

Main Methods:

• A cohort of 10 schizophrenia patients and 10 age/gender-matched healthy volunteers were recruited.
• Comprehensive arterial stiffness assessment included aPWV, Comp1, Comp2, stroke volume, cardiac output, and systemic vascular resistance.
• Statistical analysis compared arterial stiffness measures between groups and correlated them with clinical variables.

Main Results:

• Patients with schizophrenia demonstrated significantly elevated aPWV compared to healthy volunteers (9.1 ± 4.11 vs. 5.7 ± 1.4, P=0.03).
• Increased age, blood pressure, heart rate, and smoking were associated with poorer arterial health in patients.
• This is the first study to report aPWV values in individuals treated for schizophrenia.

Conclusions:

• Arterial stiffness is significantly increased in patients with chronic schizophrenia.
• Measuring arterial stiffness offers a sensitive, non-invasive method for CVD risk evaluation in this population.
• Early detection and management of arterial stiffness may mitigate CVD risk in schizophrenia patients.