“…Simultaneously, Smirk (1953) showed an improved prognosis in respect of congestive cardiac failure amongst treated hypertensive patients. Although the benefits of treating non-malignant hypertension are less welldefined, all would now agree that treatment of hypertension in the young and middle-aged is effective in lowering the mortality rate (Hodge, McQueen & Smirk, 1961) and in the prevention of complications of hypertension, particularly stroke (Hamilton, Thompson & Wisniewski, 1964;Veterans Administration Co-operative Study Group, 1967). In this study we review the incidence of stroke and certain other vascular complications of hypertension amongst a group oftreated hypertensive subjects, and correlate the findings with the quality of control of hypertension.…”