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  • Title: Trends in hypertension control and left ventricular hypertrophy over three years.
    Author: Cuspidi C, Michey I, Meani S, Severgnini B, Fusi V, Salerno M, Valerio C, Magrini F, Zanchetti A.
    Journal: Ital Heart J; 2002 Sep; 3(9):514-9. PubMed ID: 12407847.
    Abstract:
    BACKGROUND: The aim of this study was to describe trends in blood pressure (BP) control and in the prevalence of left ventricular hypertrophy (LVH) during 3 years of follow-up in a representative sample of treated hypertensive patients seen in our out-patient hypertension hospital clinic. METHODS: Four hundred and sixty-four hypertensive treated patients who took part in a clinical survey at our out-patient clinic during the year 1997 and who had been submitted to a routine follow-up visit 3 years later were included in the study. All patients were subjected to the following procedures: an accurate medical history, physical examination, electrocardiogram, clinical BP measurement. For the diagnosis of LVH we used two different ECG criteria: the Solokow-Lyon voltage and the gender-specific Cornell voltage. RESULTS: During the first survey, 15% of treated patients had a clinical BP < 130/85 mmHg, 25.1% > or = 130/85 mmHg and < 140/90 mmHg, 33.6% > or = 140/90 and < 150/95 mmHg, 26.3% > or = 150/95 mmHg. The corresponding figures in the second survey were 19, 26.7, 33.2 and 21.1%, respectively. Overall, from the first to the second survey the prevalence of an effective BP control (< 140/90 mmHg) rose from 40.1 to 46.7% (p < 0.01). At baseline, 40 patients had ECG LVH (8.6%); at the second visit, LVH was found to have regressed in 19 of these patients. Among the 424 patients with a normal baseline electrocardiogram, 3 developed LVH during follow-up. Hence, the prevalence of LVH decreased from 8.6 to 5.1% (p < 0.01). In terms of treatment, the prevalence of combination therapy regimens increased from 68.6 to 79.7% (p < 0.05). CONCLUSIONS: This study demonstrates that in hypertensive patients managed in a hypertension hospital clinic, BP control improved during the long-term follow-up and that this trend was associated with a significant regression in ECG LVH.
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