[Cardiovascular behavior after local anesthesia in the jaw region with added vasoconstrictor agents].

The authors studied the cardiovascular behaviour after injection of different amounts of xylocitin added with adrenalin (1:80 000) and noradrenalin (1:20 000), respectively. The evaluation of the blood-pressure values, pulse rates and electrocardiograms leads to the conclusion that noradrenalin produces considerable side effects at the above-mentioned concentration. The well-known headache phenomena caused by the addition of noradrenalin are analysed.