in EKG is a usual finding in Hypertensive people. If your EKG does not show any recent ischemic insult. The computer soft ware has labelled your EKG as "borderline". Doctor doing your pre operative checkup will ask you all the relevant questions and examine you before giving you cardiac clearance; which I am afraid can not be given on basis of an internet questions, for there are legal issues involved.
Dr Anil Grover