[Changes of electrocardiography in salmonelloses and shigelloses].

In the period 1964-1973 there was done routing-like Ecg in 89 patients with typhoid with 24,7% pathologic findings, in 233 cases of paratyphus (13,3% Ecg abnormalities), in 91 patients with other forms of salmonellosis, mainly salmonella-enteritis (8,7% Ecg changes), and in 367 cases of dysentery from whom 12,5% had pathologic electrocardiograms. In all these patients the main changes represented low till negative T-waves in standard and precordial leads, sometimes combined with depressed ST-segment. In dysentery the loss of water and electrolytes played an important role in the genesis of Ecg changes, also for the prolongation of QT-interval in 2 cases. In 4 cases high and spiked P2 and P3 were present. The so much mentioned bradycardia was not much marked in out patients with typhoid, but a sinus bradycardia of 36/min was found in convalescence of a case of salmonella-enteritis where a salmonella from the group B was isolated from stool.