@article{oai:niigata-u.repo.nii.ac.jp:00020931,
 author = {佐藤, 誠一},
 issue = {6},
 journal = {新潟医学会雑誌, 新潟医学会雑誌},
 month = {Jun},
 note = {Late potential recorded by signal averaging is a new marker to evaluate the prognosis of ventricular arrhythmias in comparison with Holter ECG and programmed electrical stimulation method. In the long term post operative state of patients with tetralogy of Fallot, the event free rate degreases gradually and the arrhythmia problem becames prominante. What is the risk of ventricular arrhythmias in postoperative state? Thus, signal averaged electrogram was performed to identify 17 patients at risk for ventricular arrhythmias after cardiac repair of tetralogy of Fallot. Two methods were performed in the same patients; (1) Vector magnitude (VM) method and (2) Multiphasic oscillation (MO) method. By the VM method, it was not always easy to distinguish between late potentials and RBBB. By the MO method, in about 50% patients, late potentials were detectable, which implied myocardial damage because of infundibular myocardial resections. The clinical applicability of late potential is as follow: (1) There is less possibility of VT or cardiac sudden death when a case is void of late potentials. (2) The diagnosis of ventricular arrhythmias in patients with syncope attack becomes possible. (3) It is a screening test for the programmed electrical stimulation method. Late potential recorded the MO method was fond to be useful in assessment of the myocardial damage and of the prognosis of ventricular arrhythmias.},
 pages = {495--502},
 title = {ファロー四徴術後例における心室遅延電位の研究 : 電気生理学的考察と臨床応用},
 volume = {106},
 year = {1992}
}