Double Trouble-Lignocaine Induced Complete Heart Block in QRBBB-ACS

Arrhythmia is one of the most common causes of fatality in Acute coronary syndrome. We are presenting a case of ACS with QRBBB on presentation which was started on lignocaine infusion post angioplasty for prevention of ventricular tachycardia, which resulted in an iatrogenic complete heart block, which reverted on stopping the drug. The exaggerated toxicity of the drug was blamed on the long duration of the drug infusion and co-existing ischemic hepatitis.