Resolution of left atrial appendage thrombus with apixaban.

Left atrial appendage (LAA) thrombosis is an important cause of cardiogenic cerebral thromboembolism. Apixaban is a member of the class of novel oral anticoagulants (NOAC) and is superior to warfarin in preventing stroke or systemic embolism, causes less bleeding, and results in lower mortality in patients with atrial fibrillation. There are few reports of resolution of LAA thrombus with other NOAC.

The relationship between paroxysmal atrial fibrillation and coronary artery spasm.

Background: Coronary artery spasm has recently been reported as a complication of the ablation of atrial fibrillation (AF). It may be induced by cardiac autonomic nervous dysfunction during radiofrequency catheter ablation of AF. However, the underlying mechanism is not clear.

U-shape rotating anti-cathode compact X-ray generator: 20 times stronger than the commercially available X-ray source.

A new type of U-shape anti-cathode X-ray generator in which the inner surface of a cylindrical target is irradiated by an electron beam has been made by modifying a conventional rotating anti-cathode X-ray generator whose brightness in the catalog is 12 kW mm(-2). The target material (Cu), target radius (50 mm) and rotating speed (6,000 r.p.

The relationship between right ventricular lead position and paced QRS duration.

Background: The relationship between the anatomical location of right ventricular pacing site and paced QRS duration is unclear. In this study, we aimed to investigate the relationship between right ventricular pacing site and paced QRS duration using cardiac angiography.

Methods: Fifty patients were implanted with pacemakers.

Left ventricular remodeling after myocardial infarction impairs early diastolic, but not systolic, function in the radial direction in the remote normal region.

Background: It is acknowledged that expansion of the remote normal region of the left ventricle causes remodeling after myocardial infarction (MI). However, the characteristics of that region have not been fully elucidated.

Methods: We studied 13 patients with atypical chest pain (controls) and 15 patients with a prior anterior MI who underwent cardiac catheterization.