[Arrhythmias during catheterization of patients with acute myocardial infarction (author's transl)]

Area of Science:

• Cardiology
• Pharmacology
• Critical Care Medicine

Context:

• Arrhythmias are a significant concern in patients with acute myocardial infarction (AMI).
• The use of floating catheters during cardiac procedures can precipitate arrhythmias.
• Comparing arrhythmia incidence in AMI versus chronic heart disease patients is crucial for risk stratification.

Purpose:

• To evaluate the efficacy of intravenous lidocaine in reducing arrhythmias during ventricle passage of floating catheters in AMI patients.
• To compare arrhythmia incidence between AMI patients and those with chronic heart disease undergoing similar procedures.
• To assess the hemodynamic impact and safety of lidocaine bolus administration.

Summary:

• A study compared arrhythmias in 40 AMI patients and 40 chronic heart disease patients during floating catheter procedures.
• Lidocaine (1 mg/kg IV bolus) significantly reduced single and salvos of ventricular premature beats (VPBs) in AMI patients.
• Hemodynamic changes from lidocaine were minimal and transient, deemed acceptable with continuous monitoring.

Impact:

• Lidocaine administration can mitigate life-threatening arrhythmias associated with invasive cardiac procedures in AMI patients.
• This finding supports the use of lidocaine as a prophylactic or therapeutic agent in high-risk cardiac patients.
• The study highlights the importance of continuous monitoring and pharmacological intervention during catheterization in AMI.