Present study presented the variation of levels of plasma catecholamine and urine catecholamine in the 17 patients with acute myocardial infarction and observed the relations between them and clinical courses.
The results are as follows:
1) The mean plasma epinephrine levels at the stage of acute at tack in myocardila infarction revealed 0.24±0.08r%, 0.22±0.08r% after 72 hours and 0.18±0.07r%, 5 days after admission and there was no significant difference compared with normal plasma epinephrine level, 0.20 ±0.12 r%.
2) The mean plasma norepinephrine level at the stage of acute attack in myocardial infarction revealed
0.55±0.12r% which is significantly higher compared with normal plasma norepinephrine level, whereas 72 hours and 5 days after admission, plasma norepinephrine levels, 0.28±0.10 r%, 0.23± 0.06 r% are returned to almost normal level.
3) The mean urinary epinephrine levels at acute attack of myocardial infarction revealed 17.5±11.0. r% per day, 15.1±7.0 r per day after 72 hours and 12.6±5.5 r per day on 5 days after admission, which are not significantly different statistically compared with normal mean urinary epinephrine level, 14.5±0.3 r per day.
4) The mean urinary norepinephrine level at acute attack of myocardial infarction revealed 45.4 ±18.7 r per day which was significantly higher compared with normal urinary level of norepinephrine 28.2±0.25r per day, where as the urinary norepinephrine level at 72 hours after admission and on the 5 days after admission, revealed 28.9± 11.0 r per day and 24.6±6.7 r per day which were reclined to normal level.
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