Plasma renin activity in Thai essential Hypertension.

Plasma renin activity was measured by redioimmunoassay in 38 Thai essential hypertension. There were three types detected : -Low renin = 7 cases (18.42%) normal renin = 27 cases (71.05%) and high renin = 4 cases (10.53%) No relationship was found between 24 hours specimen urine sodium and plasma renin as is found in normal populations. However, cardiovascular complication were observed in the high and normal renin subgroups especially in the high renin subgroup but no stroke or heart attack was observed in the low renin subgroup.