2002, Number 4
Gac Med Mex 2002; 138 (4)
Aguirre-Ramos R, Trujillo-Hernández B, Huerta M, Trujillo X, Vásquez C, Millán-Guerrero RO
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ABSTRACTObjective: To determine the frequency of white-coat hypertension (WCH) and associated risk factors in recently diagnosed hypertensive patients. Material and Methods: A cross-sectional study was carried out from January 1997 to December 1998. The reference population consisted of 195 patients presenting with systemic arterial hypertension (SAH) of less than 1-month evolution and receiving no medical treatment. According to Joint National Committee (JNCVI) criteria, 100 individuals with Stages I, II, and III SAH underwent the following procedures: clinical history; physical examination; electrocardiogram, serum creatinine; urianalysis, and ambulatory monitoring of arterial pressure (AMAP). Results: A total of 54% of patients were WCH carriers and 46% presented sustained hypertension (SH); 37% of WCH patients and 63% of SH patients had a family history of SAH, while 19.7% of WCH patients and 39.2% of SH patients presented with stage I retinopathy. Left ventricular hypertrophy was absent in all WCH patients and present in 21.7% of SH patients. A total of 31% of WCH patients and 50% of SH patients presented electrocardiographic changes. Conclusions: A total of 54% of patients presented WCH. Clinical/epidemiologic profiles of WCH carriers and SH patients are different.