Pacing and clinical electrophysiology : PACE
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Pacing Clin Electrophysiol · Mar 2012
Case ReportsA case of severe gastroparesis: indigestion and weight loss after catheter ablation of atrial fibrillation.
We describe a patient with gastroparesis after radiofrequency catheter ablation (RFCA) as a result of vagus nerve injury. A 42-year-old man underwent redo-RFCA due to recurrent drug-resistant symptomatic atrial fibrillation. ⋯ He underwent endoscopy during which food material was noticed. In the upper gastrointestinal series, most contrast material still remained in the stomach on the 2-hour delayed images, suggesting delayed gastric emptying time.
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Pacing Clin Electrophysiol · Mar 2012
Pulmonary vein isolation guided by real-time three-dimensional transesophageal echocardiography.
The present case illustrates pulmonary vein isolation guided by real-time three-dimensional transesophageal echocardiography. This imaging modality allowed to navigate in a point-by-point fashion around pulmonary veins to assess both catheter location in relation to pulmonary vein ostia and stability of catheter tip. Also, it offered high-resolution visualization of a thickened, prominent tissue that surrounded the left upper pulmonary vein (the ligament of Marshall). The ability to visualize this anatomical structure along with intracardiac recording of electrical signals allowed to safely modulate in loco radiofrequency energy delivery, thus achieving electrical isolation of the pulmonary vein.