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equipped to render such service, and the number is constantly growing.
A third is to spearhead programs for the training of doctors and nurses to staff coronary'care units. , Behind these concepts is the most important life-saving development to emerge from the 1960s—a system whereby the heart’s electrical activity is constantly monitored by special equipment and staff, with an alarm system bring- l ing trained personnel within ] seconds if there is any change j in heart rhythm or rate above ■ or below a preset range. i This is coronary care serv- ( ice. It takes advantage of this i principle:
Death from heart attack is not- hecdssarily the result of < heart muscle damage but instead may be due to a revers- ; ible electrical derangement of heart rhythm occuring as the ' result of relatively minor heart muscle injury. ’■ The usually-fatal crises inclu<^e ventricular fibrillation (heart moving Wildly), expe- 1 rienced by about 10 per cent ! of ' surviving heart attack : patients; ventricular tachycardia (extremely rapid and inefficient beating), about 25 per cent, and unexpected cardiac arrest (cessation of cir- , culatory functiqns), from 10 to 20 per penf. ....
In coronary care units, these and other conditions are correctable. Moreover, through intravenous medications, it is often possible to forestall Suich crises when the first indications of danger present themselves.
Unfortunately, coronary care service is of-value only to those who recognize the warning symptoms and who seek, medical assistance. Each minute that passes, following the. onset of,an attack, diminishes its potential value.
84.1%