Medical Archive

Premature ventricular contractions and non-sustained VT

PVCs and non-sustained VT during acute illness

PVCs and non-sustained VT in patients without heart disease

• ??? ??? ?? ?? ??.
• ???? ??? ???
  • Chronic BB therapy
  • BB? ???? amiodarone ?? catheter ablation.

Treatment of idiopathic arrhythmias

PVCs and non-sustained VT associated with acute coronary syndromes

Following recovery from acute MI, these are markers for depressed ventricular function and increased mortality

• Frequent PVCs (typically >10PVCs/hr)
• Repetitive PVCs with couplets
• Non-sustained VT

• Reduce the risk of VF
  • BB
  • Correction of hypokalemia and hypomagnesemia
• Antiarrhythmics (eg, lidocaine)
• Amiodarone – reduces sudden death but not mortality
• ICD
  • Reduces mortality in certain high-risk groups
    • Survived >5 days and have a reduced LVEF, non-sustained VT
    • Survived >40 days and have a LVEF of ?0.30
    • Have LVEF of ?0.35 and have symptomatic HF
  • Does not improve mortality when routinely implanted soon after MI.

PVCs and non-sustained VT associated with depressed ventricular function and heart failure

• Amiodarone: SCD ??, ?? ???? ??.
• EPS, ICD: ?? ??

PVCs and non-sustained VT associated with other cardiac diseases

PVC-induced ventricular dysfunction

Idioventricular rhythms