Individualized versus standardized analysis of ambulatory blood pressure profile: relationship with left ventricular characteristics
| Autor: | Achille Venco, Giovanni Gaudio, Luigina Guasti, P. Zanzi, R. Broggi, Monica Lamponi, R. Santillo, Andrea Bertolini, Anna Maria Grandi |
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| Rok vydání: | 1999 |
| Předmět: |
Adult
Male medicine.medical_specialty Ambulatory blood pressure Diastole Cardiomegaly Assessment and Diagnosis Left ventricular hypertrophy Ambulatory Care Facilities Left ventricular mass Internal medicine Internal Medicine medicine Humans Ventricular Function Diastolic function Circadian rhythm Intensive care medicine Advanced and Specialized Nursing business.industry General Medicine Blood Pressure Monitoring Ambulatory Middle Aged medicine.disease Circadian Rhythm medicine.anatomical_structure Blood pressure Ventricle Hypertension Cardiology Female Cardiology and Cardiovascular Medicine business |
| Zdroj: | Europe PubMed Central |
| ISSN: | 1359-5237 |
| Popis: | Objective To determine whether the use of patients' individual awake/asleep patterns instead of fixed day/night intervals would influence the correlations between blood pressure values and left ventricular morpho-functional characteristics.We enrolled 167 never-treated hypertensives (clinic blood pressures160 mmHg systolic or 90 mmHg diastolic, or both): 32 had 24h blood pressures130/80 mmHg [white-coat hypertensives (WCH)] and 135 had 24h blood pressures130 mmHg systolic or 80 mmHg diastolic, or both (hypertensives). Each patient underwent left ventricular echocardiographic examination and 24h ambulatory blood pressure monitoring, evaluated twice, using standard day/night intervals (daytime 0700-2200 h, night-time 2200-0700 h) and using the patient's individual awake/asleep pattern (an individualized scheme).Daytime and night-time blood pressures in WCH and daytime and night-time diastolic blood pressures in hypertensives were not affected by choice of using individualized or standard intervals; daytime systolic blood pressure in hypertensives was significantly higher and night-time systolic blood pressure lower with individualized intervals. The non-dippers (nocturnal decrease in blood pressure10% of daytime blood pressure) were 31 hypertensives and six WCH with standard day/night intervals and 25 hypertensives and four WCH with individualized intervals; nocturnal falls in systolic and diastolic blood pressures were significantly greater with individualized intervals for both groups. Left ventricular hypertrophy was present in 68 hypertensives and seven WCH; left ventricular systolic function was normal in all and left ventricular diastolic function was impaired in 53 hypertensives and seven WCH. Left ventricular characteristics of WCH were not correlated to blood pressure parameters; left ventricular mass index of hypertensives was directly correlated to 24h, daytime and night-time systolic blood pressures, whereas left ventricular diastolic function was inversely correlated to night-time systolic and diastolic blood pressures. The correlations were not affected by choice of using individual awake/asleep patterns.Timing day and night in an individualized way seems to improve the evaluation of nocturnal fall in blood pressure, but does not improve the ability to predict the left ventricle's involvement with ambulatory blood pressure monitoring. |
| Databáze: | OpenAIRE |
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