During pacing-induced atrial fibrillation in humans, three responses have been observed: types I, II, and III. The irregularity, complexity, and incidence of continuous electrical activity and reentry increase from type I to type III.59With type I, which resembles atrial flutter, a single broad...
In a trial of 146 patients who had chronic AF (defined as 6 months of continuous AF), 77 were assigned to the ablation arm and 69 to the drug therapy arm; 74% of patients in the ablation group and 58% of those in the control group were free of recurrent AF or flutter without ...
The mitral annulus is a thin fibrofatty ring that geometrically resembles a parabola; its sphincteric contraction reduces MV annular area by 25% during the cardiac cycle, facilitating normal leaflet coaptation. Consequently, the onset of atrial flutter - and loss of annular contraction - resulted ...
This shadow was just above posterior mitral leaflet in LA (Fig. 1). TEE examination did not show mitral regurgitation, and mean transmitral inflow gradient was 6 mmHg. The shadow was seen in other views also (Fig. 2), but hemodynamics was stable. Before going on bypass again to evaluate...
Left atrial (LA) strain analysis in two patients with paroxysmal AF. Patient A with normal LA size and preserved LA reservoir strain. Patient B with dilated LA and a severely impaired LA reservoir strain Full size image The parameter of LA reservoir strain is included in novel algorithms to ...
Review: could gabapentin cause atrial fibrillation (Atrial fibrillation/flutter)? http://www.ehealthme.com/ds/gabapentin/atrial+fibrillation. Accessed 10 May 2018. 14. eHealthMe, Personalized Health Information. Review: could Lyrica cause atrial fibrillation (Atrial ...
Paroxysmal atrial flutter was caused by an abnormal electrical re-entry circuit, which could not be treated using catheter radiofrequency ablation. Therefore, the patient underwent surgical ablation and resection of the enlarged right atrial wall. The anterior leaflet of the tricuspid valve was ...
One patient was known to have had complete heart block from infancy and another patient from 13 years of age. Each had chronic atrial fibrillation or flutter, with a regular ventricular rhythm at 35 to 45/min. Hemodynamic studies showed dilatation and poor contractility of the left ventricle, ...