Assessment of GH
To investigate the influence of CBA with PVI and LA roof line ablation on esophageal or gastric function, esophagogastroscopies were performed 2 days after ablation under overnight fasting conditions. GH was defined as the retention of food in the stomach.11 The existence of esophageal lesions, such as erythema, erosions, or ulcers, was also confirmed.
All patients reported gastrointestinal symptoms before ablation, 1 day after ablation, 1 week after ablation, 2 weeks after ablation, and 3 weeks after ablation using the 20-question Patient Assessment of Upper Gastrointestinal Disorders-Symptom Severity Index (PAGI-SYM).12 Responses to each question are rated from 0 to 5, with a score of 5 indicating a severe symptom.