[Localization value of intra-esophageal atrial pacing by modified digitus medius proportional unit]

The length of lead electrode which was eleven times the length of modified digitus medius proportional unit used for intra-esophageal atrial pacing on 86 patients was compared with the length lcm more or less than the lead length itself showed very significant difference in pacing threshold, which was low, adverse reaction was mild, the intra-esophageal P wave display was satisfactory. It could alleviate the patient's pain, and was easy to manipulate, practical, rapid and inexpensive in diagnosis and treatment of arrhythmia, rescuing indoor or outdoor emergency cases as well as monitoring operation.