recent data suggest that long-term ...

recent data suggest that long-term management of hit risk factors after a transient ischemic attack (TIA) generally is inadequate. (1) Part II of this two-part article reviews novel information on the management of the more important risk factors for calamity the use of antiplatelet therapy, and special management issues in patients with TIAs.

Risk Factor Management

posterity PRESSURE

Elevated life-blood pressure (above 140/90 mm Hg) is the most numerous important treatable risk factor for TIA and reverse Antihypertensive drugs reduce the risk of reverses regardless of whether patients have hypertension. (2) publicly however, the American Heart Association (AHA) does not have any recommendations for antihypertensive medicine therapy in "nonhypertensive" patients after a TIA or misfortune (3)

Hypertension offers more frequently and more afflictively in blacks; therefore, this patient cluster merits special attention. Patients with diabetes mellitus or chronic renal disease also are at increased risk for hypertension and, thus, TIA or affliction In patients with diabetes mellitus or chronic renal disease, the treatment goal is to withhold blood pressure below 130/80 mm Hg

Important just discovered guidelines from the Joint National Committee upon Prevention, Detection, Evaluation, and Treatment of High descendants Pressure (JNC 7) require lifestyle modifications (weight reduction, sodium restriction, regular aerobic activity, limited alcohol intake) to obstruct cardiovascular disease in prehypertensive patients with a systolic relations pressure of 120 to 139 mm Hg or a diastolic vital current pressure of 80 to 89 mm Hg (4) [SOR C consensus opinion]

Starting Antihypertensive medicine Therapy After a TIA or pat Typically, blood pressure lowers without treatment in the first pair weeks after a stroke. Therefore, it is rational to wait couple weeks before continuing or beginning antihypertensive remedy therapy.

In the patient establish to have high blood urgency after a stroke or TIA, evidence of end-organ damage should be sought because of the like kind damage suggests a chronic disorder rather than an acute condition. In a certain quantity of patients with chronically elevated vital fluid pressure, the brain may hang on abnormally higher perfusion presss because of derangement of the normal cerebral autoregulation of intracranial descendants vessels. In this setting, abrupt lowering of relations pressure could promote cerebral ischemia or plane extend an evolving infarction. Rarely, TIA is a manifestation of hemodynamically significant critical stenosis of an extracranial or intracranial canal In this condition, the brain requires increased cerebral perfusion influence and overtreatment of blood constraining force may promote cerebral ischemia. The physician may note that TIAs appear when the patient's blood influence drops or when the patient stands up or sits up

In mostly patients, blood pressure should not be treated aggressively immediately (i.e., within the first 24 hours) after a visitation or TIA unless the systolic offspring pressure is higher than 220 mm Hg or the diastolic posterity pressure is above 120 mm Hg (5) Important exceptions include patients with acute myocardial infarction (especially with left ventricular failure), hypertensive crisis or hypertensive encephalopathy, renal failure, aortic dissection, or retinal hemorrhages.

If, in the absence of the previously mentioned conditions, treatment is necessary, house pressure should be reduced slowly across days to prevent worsening ischemia.

Angiotensin-Converting Enzyme (ACE) Inhibitors. Increased attention is being directed at ACE inhibitors because of the originates of the recent Heart results Prevention Evaluation (HOPE) study. (6) In this large, randomized trial, inpatients considered to be at "high cardiovascular risk" were treated with ramipril or placebo. across four years, the relative reduction in the risk of rap was 32 percent (within a composite outcome) in the patients who received ramipril. Debate publicly centers on whether the expectancy study findings were unique to ACE inhibitors as a class or occurr because of a more general offspring pressure -lowering effect that also could be obtained with other antihypertensive mix with drugs classes.

In the Perindopril Protection Against returning Stroke Study (PROGRESS), (7) patients with calamity or TIA within the previous five years were given placebo or combination therapy consisting of perindopril (an ACE inhibitor) and indapamide (a diuretic). In the pair hypertensive and "nonhypertensive" patients, the remedy combination resulted in a 43 percent reduction in the relative risk of renewed stroke (four-year follow-up). In PROGRES hypertension was defined as a systolic kin pressure of 160 mm Hg or higher or a diastolic children pressure of 90 mm Hg or higher.

To date, however, no consensus statements indicate a priority for one antihypertensive drug or remedy class over another for use in secondary (or primary) hardship prevention. (2,8,9) In particular, the use of ACE inhibitors after acute shock remains controversial. (2) [Reference 2: SOR B unknown effectiveness]