CONCLUSION Despite recent large trials showing no significant effect , in patients that have experienced a TIA or stroke , blood pressure lowering agents reduced the occurrence of subsequent stroke and cardiovascular events .
The rate of myocardial infa rct ion and all-cause mortality was unchanged
BACKGROUND While hypertension is a leading risk factor for an initial stroke , the role of blood pressure lowering to prevent subsequent stroke is less clear .
The results of recent large clinical trials investigating effects of antihypertensive agents in patients with a history of stroke have not shown a significant benefit ; findings that are at odds with previous data .
Our meta- analysis systematic ally evaluates the available , relevant trials to examine the role of antihypertensive drugs in preventing recurrent stroke .
Use of ramipril in preventing stroke: double blind randomised trial
Abstract Objective : To determine the effect of the angiotensin converting enzyme inhibitor ramipril on the secondary prevention of stroke . Design : R and omised controlled trial with 2 × 2 factorial design . Setting : 267 hospitals in 19 countries . Participants : 9297 patients with vascular disease or diabetes plus an additional risk factor , followed for 4.5 years as part of the HOPE study . Outcome measures : Stroke ( confirmed by computed tomography or magnetic resonance imaging when available ) , transient ischaemic attack , and cognitive function . Blood pressure was recorded at entry to the study , after 2 years , and at the end of the study . Results : Reduction in blood pressure was modest ( 3.8 mm Hg systolic and 2.8 mm Hg diastolic ) . The relative risk of any stroke was reduced by 32 % ( 156 v 226 ) in the ramipril group compared with the placebo group , and the relative risk of fatal stroke was reduced by 61 % ( 17 v 44 ) . Benefits were consistent across baseline blood pressures , drugs used , and subgroups defined by the presence or absence of previous stroke , coronary artery disease , peripheral arterial disease , diabetes , or hypertension . Significantly fewer patients on ramipril  had cognitive or functional impairment . Conclusion : Ramipril  reduces the incidence of stroke in patients at high risk , despite a modest reduction in blood pressure . What is already known on this topic Treatment with aspirin and lowering blood pressure reduce the incidence of stroke What this study adds Ramipril , an angiotensin converting enzyme inhibitor , reduces strokes in patients at high risk whose blood pressure is not elevated , despite only a modest lowering of blood pressure The benefits are observed even when patients receive aspirin and other blood pressure lowering
CONCLUSION Despite recent large trials showing no significant effect , in patients that have experienced a TIA or stroke , blood pressure lowering agents reduced the occurrence of subsequent stroke and cardiovascular events .
The rate of myocardial infa rct ion and all-cause mortality was unchanged
BACKGROUND While hypertension is a leading risk factor for an initial stroke , the role of blood pressure lowering to prevent subsequent stroke is less clear .
The results of recent large clinical trials investigating effects of antihypertensive agents in patients with a history of stroke have not shown a significant benefit ; findings that are at odds with previous data .
Our meta- analysis systematic ally evaluates the available , relevant trials to examine the role of antihypertensive drugs in preventing recurrent stroke .