Relationship Between Level of Blood Pressure Measured Casually and by Portable Recorders and Severity of Complications in Essential Hypertension

Abstract

the relationship between the level of arterial blood pressure and the development of hypertensive complications is one of the conspicuous difficulties in current concepts of the natural history of essential hypertension. That cardiovascular complications of hypertension are generally more prevalent with the higher levels of blood pressure is recognized. Published data, 1-3 however, invariably include a substantial proportion of cases in which casual blood pressures* were considerably elevated, yet hypertensive complications did not develop, as well as cases in which complications occurred although arterial pressures were only moderately increased. These apparent inconsistencies in the course of the illness lead one to ask how closely are hypertensive complications related to the level of blood pressure? To what extent are the discrepancies between casual blood pressure and clinical

Relationship between left ventricular mass and blood pressure in treated hypertension

“…Although this has previously been demonstrated in 1966 by Sokolow et al 9 and has been confirmed by other studies assessing targetorgan disease in the heart, kidneys, brain and blood vessels, [11][12][13][14][15] according to the data presented here, the relationship between criteria of left ventricular mass and blood pressure in a selection of treated hypertensive patients is weak (at most 0.28). This is in contrast with the relationship found in studies including subjects with a wide spectrum of blood pressure values, including normotensive and untreated hypertensive subjects (correlation coefficients up to 0.56).…”

“…[9][10][11][12][13][14][15] In addition, single office blood pressure only weakly predicts coronary events. [9][10][11][12][13][14][15] However some of these studies have been criticised in terms of trial design. 16,17 Furthermore with regards to the development of target organ damage, controversy exists regarding the relative importance…”

Target organ involvement in hypertensive patients in Eastern Sudan

“…ECG-LVH was diagnosed on the basis of increased voltage with or without repolarization abnormality (strain pattern). 16 Data were analysed using an IBM-compatible computer incorporating the Statistical Package for Social Sciences (SPSS/PC+). Mantel-Haenszel chisquared tests were used to assess the differences between categories of patients.…”

White coat hypertension and target organ involvement: the impact of different cut-off levels on albuminuria and left ventricular mass and geometry

“…The correlation between values from these two measurement modalities is relatively low with reported coefficients of correlation around 0.5-0.7. [1][2][3] It is unsolved which measure is 'true', ie, which best reflects the 'usual' BP and prognosis. 4 The lack of identity between the two methods of measurement yields a group of patients with the combination of hypertensive office BP and normal ambulatory BP (ABP), which is generally referred to as 'white coat hypertension'.…”