Ventricular arrhythmias and risk indicators of ischemic heart disease

Area of Science:

• Cardiology
• Preventive Medicine
• Electrophysiology

Background:

• Ischemic heart disease (IHD) is a significant health concern.
• Ventricular arrhythmias are a common complication of IHD.
• Identifying individuals at risk for arrhythmias is crucial for preventive strategies.

Purpose of the Study:

• To compare the frequency of ventricular arrhythmias in men with manifest IHD, those with IHD risk indicators, and healthy controls.
• To identify specific risk factors associated with increased ventricular arrhythmias.
• To evaluate the utility of long-term ECG monitoring for detecting arrhythmias in at-risk populations.

Main Methods:

• Three groups of 50 men each were studied: manifest IHD, IHD risk indicators, and healthy controls.
• 24-hour Holter monitoring was performed during daily work and home activities.
• Statistical analysis was used to compare arrhythmia frequencies and identify associated risk factors.

Main Results:

• Ventricular arrhythmias were most frequent in the IHD group, intermediate in the risk group, and least frequent in the control group.
• Multiform ventricular ectopic beats were the primary distinguishing arrhythmia type.
• Ageing, cardiac enlargement, and smoking were significantly associated with increased ventricular arrhythmias.

Conclusions:

• Long-term ECG monitoring is valuable for detecting ventricular arrhythmias in men with clinical IHD.
• This monitoring is also beneficial for men with only risk indicators for IHD.
• Early detection through Holter monitoring can inform preventive interventions for cardiovascular health.