| Objective:Atrial fibrillation is the most common cardiac arrhythmia in clinical practice. Radiofrequency catheter ablation has been first-line therapy for symptomatic atrial fibrillation. Complications related to the procedure are concerned by more and more people, including gastric hypomotility, phrenic nerve injury, atrial esophageal fistula and so on which majorly involved the digestive system. According to the different diagnostic methods of gastric motility, the incidence of these complications and related factors are not the same. The purpose of this study was to investigate possibility and risk factor of post-ablation gastric hypomotility by using radio-opaque markers to evaluate gastric motility.Methods:We prospectively observed 41 patients with cardiac arrhythmia who undergoing catheter ablation and used radio-opaque markers to evaluate gastric emptying rate 5h after meal before and after the ablation procedure respectively.Results:From November 2014 to March 2016, a total of 41 patients with cardiac arrhythmia underwent radiofrequency ablation were enrolled.34 of them were patients with atrial fibrillation and the rest were PSVT patients. The average gastric emptying rate before ablation of 34 AF patients was 87.8± 22.6% and decreased to 65± 33.8% after ablation, significantly different from the former (P<0.05). The new incidence of gastric motility after radiofrequency catheter ablation for atrial fibrillation was 26.5%. Among the 7 PSVT patients, the average gastric emptying rate was 75.7± 34.1% and 65.7±34.9%, before and after ablation procedure respectively. And there was no significant difference between them. Multiple linear regression show thay BMI and fluoroscopy time were risk factors for gastric hypomotility among AF patients.Conclusion:The new incidence of gastric motility after radiofrequency catheter ablation for atrial fibrillation was 26.5%. BMI and fluoroscopy time were risk factors for gastric hypomotility. |
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