[Myocardial infarct. Dimensions of the problem and its local aspects]. / Infarto del miocardio. Dimensioni del problema e suoi aspetti locali

World statistics of infarction are given in brief from the viewpoints of incidence, mortality and prevalence. The results of analysing admittances for m.i. to the Imperia Hospital in the period 1960-1972 are then reported. The series is considered from the general and local standpoints, with reference to the organizational and welfare problems created by the high number of admittances and their high annual increment.

[Difficulties in the electrocardiographic diagnosis of a previous posterior myocardial infarct]. / Difficoltà nella diagnosi elettrocardiografica di pregresso infarto miocardico "posteriore"

A retrospective study was carried out of 39 cases of posterior m.i. from 8 months to 6 years after acute episode. In each case the diagnostic reliability of the standard derivations of a series of parameters was evaluated (duration of Q D3 and Q aVF, Q.100/R ratio in aVF, R/S ratio in V1 and R V1/R V6) and of the following accessory derivations: De Maria, III P of Pescador (classical and in two personal modifications), dorsal and sternal derivations. It is concluded that in many cases, standard derivations do not enable previous posterior m.i. to be diagnosed. The De Maria and III P of Pescador derivations (with the proposed personal modifications) are advisable. In isolated cases, the sternal derivation may also be very useful.