ESSENTIO™ESSENTIO™ EL - L121

Boston Scientific pacemakers are indicated for treatment of the following conditions:
Symptomatic paroxysmal or permanent second- or third-degree AV block
Symptomatic bilateral bundle branch block
Symptomatic paroxysmal or transient sinus node dysfunction with or without associated AV conduction disorders (i.e., sinus bradycardia, sinus arrest, sinoatrial [SA] block)
Bradycardia-tachycardia syndrome, to prevent symptomatic bradycardia or some forms of symptomatic tachyarrhythmias
Neurovascular (vaso-vagal) syndromes or hypersensitive carotid sinus syndromes
Adaptive-rate pacing is indicated for patients exhibiting chronotropic incompetence and who may benefit from increased pacing rates concurrent with increases in minute ventilation and/or level of physical activity. Dual-chamber and atrial tracking modes are also indicated for patients who may benefit from maintenance of AV synchrony.

Dual chamber modes are specifically indicated for treatment of the following:
Conduction disorders that require restoration of AV synchrony, including varying degrees of AV block
VVI intolerance (i.e., pacemaker syndrome) in the presence of persistent sinus rhythm
Low cardiac output or congestive heart failure secondary to bradycardi

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Indications, Safety, and Warnings