Who had a pre-excitation syndrome of the heart named after him and introduced a new use for the drug lidocaine?
Lown–Ganong–Levine syndrome Lown–Ganong–Levine syndrome (LGL) is a pre-excitation syndrome of the heart due to abnormal electrical communication between the atria and the ventricles. Once thought to involve an accessory conduction pathway, it is grouped with Wolff–Parkinson–White syndrome as an atrioventricular re-entrant tachycardia (AVRT). Individuals with LGL syndrome have a short PR interval with normal QRS complexes and paroxysms of clinically-significant tachycardia. The syndrome is named after Bernard Lown, William Francis Ganong, Jr., and Samuel A. Levine.
Lidocaine Lidocaine, also known as xylocaine and lignocaine, is a medication used to numb tissue in a specific area. It is also used to treat ventricular tachycardia and to perform nerve blocks. Lidocaine mixed with a small amount of adrenaline (epinephrine) is available to allow larger doses for numbing, to decrease bleeding, and to make the numbing effect last longer. When used as an injectable, it typically begins working within four minutes and lasts for half an hour to three hours. Lidocaine mixtures may also be applied directly to the skin or mucous membranes to numb the area.