antibiotic prophylaxis in the case of bicuspid aorta, all except.. esophageal dilatation

antibiotic prophylaxis in the case of bicuspid aorta, all except:
1- dental extraction
2- superfascial abcess
3- bronchoscopy with drainage of –
4- esophageal dilatation***

All esophageal procedures arenot candidates for prophylaxis that is old indications, now no need for prophylaxis in a patient with bicuspid aorta.