Abstract
Aim: to investigate the relationship between cardiovascular risk (CVR) and different types of diurnal blood pressure (BP) profile among men of working age with arterial hypertension (AH).
 Materials and methods. The study included 83 men of working age (average age 48±2 years) with II stage, 2 and 3 degrees of AH. The risk of death due to cardiovascular diseases during the next 10 years was assessed using the SCORE scale. All patients underwent ambulatory BP monitoring (ABPM), according to the results of which the following diurnal BP profiles were identified: 23 (28%) patients – normal (optimal) level of nocturnal decrease in BP («dipper»; daily index (DI) 10-20%); 10 (12%) – excessive nocturnal lowering of BP («over-dipper»; DI >20%); 38 (46%) – insufficient nocturnal lowering of BP («non-dipper»; DI <10%); and 12 (14%) patients had an inverted diurnal curve («night-peaker»; DI <0%).
 Results and discussion. According to the SCORE scale, the CVR profile in «dipper» group (n=23) was as follows: low – 6 (26%) patients; moderate – 15 (65%); and high – 2 (9%). Among 10 patients of «over-dipper» group, 7 had low, 2 – moderate, and 1 – high CVR. In «non-dipper» group (n=38), there were 4 (11%) patients with low CVR, 10 (26%) with moderate, 14 (37%) with high, and 10 (26%) with very high CVR. At the same time, 7 out of 12 patients of «night-peaker» group showed very high CVR, 3 – high, and 2 – moderate (overall p<0,001). The frequency of patients with high CVR was higher in the pooled «non-dipper» and «night-peaker» group (pathological BP profile; n=50), as compared to the pooled «dipper» and «over-dipper» group (n=33): 34% vs. 9%, respectively. At the same time, the pooled «dipper» and «over-dipper» group was characterized by the higher frequency of patients with moderate (52%) and low CVR (39%), in contrast to the pooled «non-dipper» and «night-peaker» group (24% and 8%, respectively). Finally, all 17 patients with very high CVR had an abnormal diurnal BP profile (34% in the pooled «non-dipper» and «night-peaker» group) (overall p<0,001).
 Conclusions. It was established that, according to ABPM, 60% of men of working age with the AH of II stage, 2- and 3-degrees, had pathological BP profiles of the «non-dipper» and «night-peaker» types. Individuals diagnosed with nocturnal rise or insufficient diurnal BP decrease have a higher risk of cardiovascular death in the next 10 years according to SCORE. Patients with a «non-dipper» and «night-peaker» diurnal BP profiles require more aggressive drug therapy and re-examination with ABPM to control the normalization of the diurnal BP profile.
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