[Serial analysis of "P-terminal force-V1" (PTF-V1) in acute myocardial infarction (author's transl)]

P-terminal force on horizontal plane (PTF-V1) has been studied following clinical and statistical criteria in 122 subjects with acute myocardial infarction (A.M.I.) and in a control comparable group. Also the other parameters of the P-wave have been analysed. PTF-V1 is a more reliable sign than the last and has shown some modifications in connection with the clinical changes in A.M.I. The more pathologic values have been found in anterior myocardial infarction and in infarction with pump failure. There has not been possible to find so strict relation between pathologic PTF-V1 and mortality.