[Consciousness disorders from cardiological view]

Area of Science:

• Cardiology
• Electrophysiology
• Internal Medicine

Background:

• Consciousness disorders in acute coronary syndrome (ACS) patients often stem from cardiac arrhythmias.
• Bradyarrhythmias (BA), including sinus node dysfunction and atrioventricular (AV) blocks, occur in a significant percentage of ACS patients.
• Tachyarrhythmias, such as ventricular tachycardia and fibrillation, also present a critical risk.

Purpose of the Study:

• To review the causes and management of cardiac arrhythmias leading to consciousness disorders in ACS.
• To highlight the incidence and characteristics of various bradyarrhythmias and tachyarrhythmias in ACS.
• To emphasize the importance of detailed cardiological evaluation for appropriate treatment.

Main Methods:

• Review of literature on cardiac arrhythmias in ACS patients.
• Analysis of the incidence and types of bradyarrhythmias (sinus node dysfunction, AV blocks, bundle branch blocks).
• Discussion of management strategies including atropine and pacemaker stimulation, and treatment of tachyarrhythmias.

Main Results:

• Bradyarrhythmias occur in 0.3-18% of ACS patients, with varying types and transient or permanent courses.
• Atropine is effective in 70-80% of BA patients; pacemaker stimulation needs vary by MI type.
• Complete bundle branch block is seen in 10-15% of ACS patients.
• Tachyarrhythmias require immediate termination via cardioversion or defibrillation.

Conclusions:

• Cardiac arrhythmias are a primary cause of consciousness disorders in ACS.
• Understanding the specific type of arrhythmia and its association with MI location is key for treatment.
• Comprehensive cardiological assessment is essential for effective management and improved patient outcomes.