Introduction The median nerve is formed by the two roots of the brachial plexus the lateral root from the lateral cord and the medial root from the medial cord. The medial cord crosses the third part of the axillary artery and joins with the lateral root to form the median nerve lateral to the artery. The median nerve crosses the brachial artery in the middle of the arm from lateral to medial s...

transcatheteraortic valve implantation, first introduced in 2002, has been established as an alternative modality for patients deemed not suitable for open-heart surgery. the anatomical vicinity of the atrioventricular node and the his bundle to the non-coronary and rightcoronary aortic cusps predisposes patients to conduction abnormalities in case of severe calcification or mechanical trauma d...