Blood pressure control and cardiovascular risk profile in hypertensive patients under specialist care in Argentina: Results from the CHARTER study.

Worldwide, hypertension control rate is far from ideal. Some studies suggest that patients treated by specialists have a greater chance to achieve control. The authors aimed to determine the BP control rate among treated hypertensive patients under specialist care in Argentina, to characterize patients regarding their cardiovascular risk profile and antihypertensive drug use, and to assess the variables independently associated with adequate BP control. The authors included adult hypertensive patients under stable treatment, managed in 10 specialist centers across Argentina. Office BP was measured thrice with a validated oscillometric device. Adequate BP control was defined as an average of the three readings <140/90 mm Hg (and <150/90 in patients older than 80 years). The authors estimated the proportion of adequate BP control and the variables independently associated with it through a multiple conditional logistic regression model. Among the 1146 included patients, 48.2% were men with a mean age of 63.5 (±13.1) years old. Mean office BP was 135.3 (±14.8)/80.8 (±10) mm Hg, with a 64.8% (95% CI: 62%-67.6%) of adequate control. The mean number of antihypertensive drugs was 2.1 per participant, the commonest being angiotensin receptor blockers and calcium channel blockers. In multivariable analysis, only female sex was a predictor of adequate BP control (OR 1.33 [95% CI 1.02-1.72], P = .04). In conclusion, almost 65% of hypertensive patients treated in specialist centers in Argentina have adequate BP control. The challenge for future research is to define strategies in order to translate this control rate to the primary care level, where most patients are managed.

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