ARTIFICIAL PACEMAKING AND SINUS RHYTHM

Artificial Pacemaking and Sinus Rhythm.

The patients reported form part of a larger series of 60 patients with Stokes-Adams disease treated with artificial pacemakers, which is being reported in full elsewhere. The series contained 32 men between the ages of 39 and 81, and 28 women between 27 and 76. There was a bias towards the older age-groups with 53 per cent of the men and 62 per cent of the women being over 65 years. No patients...

Dissociation with interference, reciprocal rhythm, and coronary sinus rhythm.

Sinus Rhythm and Chronic Atrial Fibrillation

Methods and Results: Atria versus ventricles have lower IK1, resulting in more depolarized resting membrane potential ( 7 mV). We used higher Ito,fast density in atrium, removed Ito,slow, and included an atrial-specific IKur. INCX and INaK densities were reduced in atrial versus ventricular myocytes according to experimental results. SERCA function was altered to reproduce human atrial myocyte ...

Left Superior Pulmonary Vein Rhythm Masquerading as Sinus Rhythm

A 55 year old male with a history of frequent symptomatic episodes of paroxysmal atrial fibrillation (AF) for four years was referred to us for catheter ablation. He had earlier tried flecainide and sotalol. However he was unresponsive to both of them. The echocardiogram was normal. Figure 1, left panel demonstrates his baseline electrocardiogram. The relatively slow rate and regularity of this...

Digoxin for heart failure in sinus rhythm.

Macklem, P T (1975). The use of a helium-oxygen mixture during maximum expiratory flow to demonstrate obstruction in small airways in smokers. Journal of Clinical Investigation, 55, 1090-1099. Fry, D L, and Hyatt, R E (1960). Pulmonary mechanics. American Journal of Medicine, 29, 672-689. Hogg, J C, Macklem, P T, and Thurlbeck, W M (1968). Site and nature of airway obstruction in chronic obstru...