Abstract
Blood pressure (BP) is maintained within normal limits by the interplay of various mechanisms including the action of cortisol and aldosterone. However, these hormones when exogenously administered are not under the regulatory feedback mechanisms that maintain BP homeostasis. Treatment of congenital adrenal hyperplasia (CAH) requires glucocorticoid replacement (with or without additional mineralocorticoid) at supra-physiological doses to normalize the pituitary adrenocortical axis. Long-term use of glucocorticoids at supra-physiological doses may result in high BP. To document any changes in BP in patients with CAH following long-term conventional glucocorticoid replacement therapy. 24-hour ambulatory BP (AmBP) monitoring was performed in 11 patients with CAH, all of whom were on glucocorticoid replacement at supra-physiological doses. In addition, a single random BP measurement was taken in each patient at enrolment. Mean systolic and diastolic pressure during awake and sleep periods, systolic and diastolic BP loads, and systolic and diastolic BP dips were calculated from the 24-hour AmBP profile of each patient, which was correlated with demographic and treatment details. AmBP readings were compared to Task Force references f...Continue Reading
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