This is the first study using highly sensitive DW-MRI of the brain to detect asymptomatic cerebral embolism after left atrial catheter ablation. Even small, clinically silent, embolic lesions can be demonstrated with this technique. DW-MRI can be used to monitor and compare the thrombogenicity of different AF ablation approaches.

This study shows a high incidence of silent micro-embolic events after PV ablation. CAD, left ventricular dilatation, and hypertrophy were potential predictors of this complication.

In a normal middle-aged population the basal serum gastrin concentration and gastric pH were determined. Persons with achlorhydria were excluded. In 550 nonachlorhydric persons the relation between basal gastric pH and serum gastrin was studied. Persons with a basal gastric pH higher than 6 had significantly higher basal serum gastrin concentrations.

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