Abstract
BACKGROUND Transcatheter device closure of secundum atrial septal defect (ASD) with valvular pulmonary stenosis (PS) under fluoroscopy and/or transesophageal echocardiography (TEE) guidance is a mature technology. However, little study has focused on whether the technology can be guided totally by transthoracic echocardiography (TTE), even in children.METHODS Thirteen children with ASD combined with PS underwent transcatheter device closure totally guided by TTE at our cardiac center from March 2 016 to August 2 019. Percutaneous transcatheter pulmonary valvuloplasty was performed first and then transcatheter closure of the ASD uneventfully.RESULTS All cases were successfully treated with transcatheter balloon pulmonary valvuloplasty and closure of ASD respectively via femoral vein approach solely under TTE guidance. The mean defect size was 8.1±1.4 mm (range: 5.5-10 mm), the preoperative mean pressure gradient across pulmonary valve was 61.2±5.5 mmHg (range: 51-71 mmHg). The mean device size used was 11.1±1.9 mm (range: 8- 14 mm), the mean procedure time was 55.1±8.0 min (range: 45-71 min). There were no serious cardiovascular related complications. During the follow-up period (10 mon to 47mon), no arrhythmias device, thrombosis, residual fistulas or device frame fractures were detected. PS gradient had significant difference before and after procedure during the follow up (t=28.9, P =0.000).CONCLUSION Simultaneous transcatheter treatment for ASD complicated by PS in children under TTE guidance is an safe and effective therapeutic option.
Incremental epidural anaesthesia for emergency caesarean section in a patient with ostium secundum atrial septal defect and severe pulmonary stenosis with right to left shunt
