P-184: Impact of ambulatory blood pressure criteria for white coat hypertension on cardiac structure in a biracial population in Connecticut

• Published in: American journal of hypertension Vol. 15; no. S3; p. 95A
• Main Authors: Mansoor, G.A., White, W.B.
• Format: Journal Article
• Language: English
• Published: Oxford Oxford University Press 01.04.2002
• Subjects: Ambulatory Blood Pressure; Hypertension; Ventricular Hypertrophy
• ISSN: 0895-7061; 1941-7225; 1879-1905
• DOI: 10.1016/S0895-7061(02)02535-9

Medicare approved the use of ambulatory blood pressure monitoring (ABPM) and indicated that it “will be covered for those with suspected white-coat hypertension” (WCH). The document recommended a 24-hour average of <135/85 mmHg be used to define WCH when office BP was >140/90 mmHg. We examined the effects on cardiac structural parameters of 3 levels of 24-h BP to define WCH in 62 never treated hypertensive (HTN) and 30 normotensive (NTN) control subjects from a biracial population in Connecticut. Cardiac structural parameters in patients with WCH from a biracial population in Connecticut approach those in normotensive subjects when 24-h ABPM level is <130/80 mmHg. Lower levels of ABPM are preferred for the diagnosis of WCH until prospective randomized trials with clinical endpoints are completed. (See Figure) (See Table) Variable NTN WCH (A) WCH (B) WCH (C) HTN* N 30 8 18 29 32 Age, yrs 51 53 50 50 49 BMI,kgm2 25.5 29.8 29.8 28 28 24-h BP, mmHg 121/73 125/76 129/77 130/80 148/91 A: 24-h BP < 130/80, B: 24-h BP < 135/85, C: 24-h BP < 140/90. *24-h BP > 140/90