The historical beginnings of pacemakers for the treatment of bradyarrhythmias were predated by the recognition of heart block as one etiology for syncope. Patients with extremely slow pulse rates were noted to be prone to ‘epileptic’ seizures and dizziness. Between 1826 and 1846, several cases of the Stokes-Adams syndrome were described, clearly implicating profound bradycardia as the cause of syncope. An understanding of the physiological basis for heart block awaited the discovery by Wilhelm His in 1895 of a bundle of conduction tissue that resulted in atrioventricular (AV) block when cut.
|Title of host publication||Operative Cardiac Surgery, Fifth Edition|
|Number of pages||27|
|State||Published - 1 Jan 2004|