the Further dynamics of an electrocardiogram. Decrease in a voltage of a teeth

you in section: the Further dynamics of an electrocardiogram

By means of an electrocardiogram it is possible not only to diagnose a myocardium heart attack, but also to define its localisation, and also prevalence degree.

Prevalence of a heart attack of a myocardium usually judge by quantity of assignments, first of all chest in which are available this or that degree of expressiveness of change of an electrocardiogram.

On localisation heart attacks can be divided on: 1) lobbies, including peredneperegorodochnye, top; 2) back, including zadnebazalnye; 3) lateral, including the high lateral; 4) before-not lateral; 5) zadnebokovye; 6) lerednezadnie at sochetannom defeat of a forward and back wall and perednezadnej peregorodochnoj areas (extensive, deep heart attacks). A heart attack is surprised left zheludochek, than right is more often.

At localisation of a heart attack in the field of a forward wall of heart (it is a frontperegorodochno-top heart attack) changes on an electrocardiogram (reflecting processes nekroza more often, damages, an ischemia depending on a heart attack stage) come to light in G standard, AVI, V15 assignments.

Peredneperegorodochnyj a heart attack is characterised by respective alterations in V] _3 assignments, peredneverhushechnye - in V assignments,

In connection with that that the heart top has gemisfericheskuju the form, signs of a top heart attack can pass for top limits, appearing quite often and in the first chest (V2-V3), in I-II, III standard, in AVI, AVF assignments. Decrease in a voltage of teeth QRS, a deviation of segment S - T upwards in all standard assignments is the basis for diagnostics of a heart attack of a top of heart.