Spontaneous initiation of atrial fibrillation by ectopic beats originating in the pulmonary veins

Article Abstract:

The large veins leading from the lungs to the heart may be a source of abnormal electrical activity in patients with atrial fibrillation. Atrial fibrillation is a common heart arrhythmia. Researchers used catheters to place small electrodes in the heart and pulmonary veins of 45 patients with atrial fibrillation. These electrodes can detect abnormal electrical activity prior to the onset of the arrhythmia and can also pinpoint its source. Ninety-four percent of the abnormal activity occurred in the pulmonary veins. The patients were treated with radio-frequency ablation, which eliminated atrial fibrillation in 62%.

Physiological aspects, Heart, Electric properties, Pulmonary veins, Pulmonary vein

---

Catheter ablation for atrial fibrillation in congestive heart failure

Article Abstract:

A study is conducted to evaluate the effect of catheter ablation for atrial fibrillation on left ventricular function in patients with heart failure. The conclusion states that restoration and maintenance of sinus rhythm by catheter ablation without the use of drugs in patients with congestive heart failure improve cardiac function, symptoms, exercise capacity and quality of life.

Science & research, England, Research, Risk factors, Influence, Catheter ablation

---

Effects of multisite biventricular pacing in patients with heart failure and intraventricular conduction delay

Article Abstract:

Atriobiventricular pacemakers may benefit patients with heart failure and an intraventricular conduction delay, according to a study of 48 patients. Atriobiventricular pacemakers have one electrode in the upper part of the heart and two in the lower part of the heart.

Care and treatment, Evaluation, Arrhythmia, Pacemaker, Artificial (Heart), Pacemakers

Similar abstracts:

• Abstracts: Tobacco litigation as cancer prevention: dealing with the devil. Ulysses and the fate of frozen embryos -- reproduction, research, or destruction?
• Abstracts: Newly diagnosed atrial fibrillation. The automated external defibrillator: critical link in the chain of survival
• Abstracts: A critical evaluation of the duplicate-portion technique in dietary surveys. High fruit intake may reduce mortality among middle-aged and elderly men. The Study of Men Born in 1913
• Abstracts: Immunization of adults. Ehrlichiosis - in pursuit of an emerging infection. The risk of vaccination -- the importance of "negative" studies
• Abstracts: Using restorations borne totally be anterior implants to preserve the edentulous mandible. Treatment of the edentulous mandible

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.