Objective. To study the opportunities of 24-h blood pressure (BP) monitoring in verifi cation of arterial hypertension (AH). Design and methods. The retrospective analysis of the 24-hour BP monitoring results of 395 patients was performed. Sensitivity and specifi city of the hypertensive indices were studied. Results. Ambulatory BP monitoring revealed 90 % of patients, who had BP over 140/90 mm Hg; however within 100 % sensibility, specifi city of this method was only 17 %. Based on the average daily BP (over 130/80 mm Hg) AH was verifi ed in 51 %. This index has 100 % sensitivity and 64 % specifi city. According to the time hypertensive indices ( HISx и HIDx ≥ 50 %) that show the same specifi city and sensitivity AH was established in 28 %, but these values ranging from 30 to 50 % made diffi cult the interpretation of the results The maximal density of BP, refl ecting the range of systolic and diastolic BP values at 10 mm Hg stepout, demonstrates both presence and stage of AH with the specifi city and sensitiviy 82 and 87 % respectively. Conclusion. The application of several highly sensitive and specifi c quantitative indices of 24-h BP monitoring in complex diagnostic approach allows diagnosing AH.
Read full abstract