Assertion: transseptal puncture | /r/HasProperty | retrogradely
Facets:
value: anterogradely)
type: DEGREE
Source sentences:
text: Radiofrequency ablation of atrioventricular accessory pathways that span the mitral valve annulus can be performed via a transseptal puncture (anterogradely) or via the aorta and left ventricle (retrogradely).