Measurements of sinus impulse conduction from electrogram of bundle of His.
Soad Bekheit, J G Murtagh, P B Morton, Evan Fletcher · Heart · 1971
A catheter technique for recording bundle of His activity is described.The method is simple and the electrode catheter can be introduced percutaneously into the femoral vein by the Seldinger technique.Measurements of sinus impulse conduction were made in 20 patients from the bundle of His electrogram.Slight variation in the PR interval of the standard electrocardiogram occurred, but the HV interval of the electrogram remained constant.It is concluded that in normal sinus con- duction changes in the PR interval always take place above the bundle of His.