Arrhythmias and Conduction Disturbances in Autoimmune Rheumatic Disorders

Arrhythmias and Conduction Disturbances

Coupling intervals of extrastimuli that induced 57 previously documented unimorphic ventricular tachycardias (VTs) were compared with coupling intervals that induced 57 episodes of polymorphic VT or ventricular fibrillation (VF) in patients wlthout a documented or suspected history of polymorphic VT or VF. Programmed stimulation was performed with the patient in the drug-free state, with 1 to 3...

Spontaneous arrhythmias and conduction disturbances in domestic animals.

Most of the common arrhythmias and conduction disturbances have been reported in domestic mammals. Prevalence data, however, are not available from unselected population samples, and little information is at hand on long-term studies of individual cases. A discussion of some of these disturbances, therefore, must necessarily rely more heavily upon clinical impression than is desirable. Data hav...

The Hpa Axis in Autoimmune Rheumatic Disorders

Defensins: Potential Effectors in Autoimmune Rheumatic Disorders

Defensins are small cationic peptides with antimicrobial properties. They constitute a highly conserved innate immune defense mechanism across species. Based on the arrangement of disulfide-bonds, αand β-defensins are distinguished in humans. Both types of defensin comprise several distinct molecules that are preferentially expressed at epithelial surfaces and in blood cells. In the last decade...

Arrhythmias and conduction disturbances in obstructive sleep apnoea: the heart of the problem?

H eart rhythm disorders temporally associated with obstructive apnoeic events have been highlighted for more than 30 years. An ECG from polysomnographic recordings enables both sleep medicine specialists and cardiologists to address occasional very impressive paroxysmal atrioventricular conduction blocks or sinus pauses (of up to 10 s during rapid eye movement (REM) sleep) [1]. The pathophysiol...