Robotic coronary angioplasty has been shown to high technical and clinical success as well as safety in initial studies with simple coronary lesions. Radiation to the operator is
Ventricular tachycardia can be treated with intravenous amiodarone or lignocaine. In case of hemodynamic compromise, electrical cardioversion with a direct current shock is needed.
Magnesium blocks the L-type calcium channels and suppresses early afterdepolarizations (EAD) to subthreshold amplitude and hence reduces the chance of torsade de pointes.
Isolated hypomagnesemia is rare and has been reported to cause global T wave inversion. Most of the arrhythmias associated with hypomagnesemia has hypokalemia as contributing factor. Suppression of
Vorapaxar is an orally active protease-activated-receptor-1 (PAR-1) antagonist capable of inhibiting thrombin induced platelet activation. A recent study showed the role of vorapaxar in reducing stent thrombosis, but
ST segment prolongation without changes in the T wave is the hallmark of hypocalcemia. ECG changes and clinical features of hypocalcemia are due to lowering of ionized calcium
Tall peaked T waves in hyperkalemia is due to the enhanced outward potassium current IKr. QRS widening is due to the reduced Vmax as the intracellular negativity
Prolongation of action potential duration in hypokalemia is due to inhibition of the outward potassium current. IKr, the rapid component of the delayed rectifier potassium current, is markedly
ECG showing right ventricular apical pacing in VVI mode with very wide QRS due left ventricular myocardial damage and associated coarse atrial fibrillation.