Search results for "blood pressure variability"

showing 10 items of 14 documents

Relationship Between Short-Term Blood Pressure Variability and Subclinical Renal Damage in Essential Hypertensive Patients

2015

The authors aimed to analyze the relationship between subclinical renal damage, defined as the presence of microalbuminuria or an estimated glomerular filtration rate (eGFR) between 30 mL/min/1.73 m(2) and 60 mL/min/1.73 m(2) and short-term blood pressure (BP) variability, assessed as average real variability (ARV), weighted standard deviation (SD) of 24-hour BP, and SD of daytime and nighttime BP. A total of 328 hypertensive patients underwent 24-hour ambulatory BP monitoring, 24-hour albumin excretion rate determination, and eGFR calculation using the Chronic Kidney Disease Epidemiology Collaboration equation. ARV of 24-hour systolic BP (SBP) was significantly higher in patients with subc…

AdultMalemedicine.medical_specialtySettore MED/09 - Medicina InternaAmbulatory blood pressureEndocrinology Diabetes and MetabolismRenal functionBlood PressureEssential hypertensionrenal dysfunctionInternal medicineCKDInternal MedicineAlbuminuriaHumansMedicineSubclinical infectionSettore MED/14 - Nefrologiabusiness.industryBlood Pressure Monitoring AmbulatoryMiddle Agedmedicine.diseaseOriginal PapersSettore MED/11 - Malattie Dell'Apparato Cardiovascolareambulatory blood pressure monitoringEndocrinologyBlood pressureHypertension; blood pressure variability; renal dysfunction; CKD; albuminuria; ambulatory blood pressure monitoringHypertensionAmbulatoryCardiologyFemaleKidney DiseasesMicroalbuminuriablood pressure variabilityEssential HypertensionCardiology and Cardiovascular MedicinebusinessGlomerular Filtration RateKidney diseaseThe Journal of Clinical Hypertension
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RELATIONSHIPS BETWEEN SHORT-TERM BLOOD PRESSURE VARIABILITY AND EARLY RENAL DYSFUNCTION IN HYPERTENSION

2014

The prognostic significance of short–term blood pressure (BP) variability (STBPV), expressed as standard deviation (SD) of blood pressures (BP) intermittently recorded over 24 hours, is debated. Recently, indices of STBPV other than SD have been proposed. Among these, the 24-h BP Average Real Variability (ARV) seems to be associated more consistently than SD with an enhanced cardiovascular risk. The relationship between mild-to-moderate renal dysfunction (MMRD) and ARV was not investigated. Our study was aimed to analyse, in a large group of untreated essential hypertensives, the relationships between ARV, and other STBV indices, with MMRD. We enrolled 329 essential hypertensive patients, w…

Blood pressure variabilityHypertensionrenal dysfunction.
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From pioneering to implementing automated blood pressure measurement in clinical practice: Thomas Pickeringʼs legacy

2010

Thomas G. Pickering spent most of his scientific career in carrying out research on clinical hypertension and blood pressure (BP) measurement. In our review of Pickering's seminal work, we first focused on white-coat hypertension and masked hypertension, two terms that he had introduced. Next, we highlighted the early publications of Pickering on diurnal BP variability and on the clinical application of self-measured BP. Pickering's work inspired many investigators worldwide and constituted a solid basis for further research. Pickering's original ideas led to algorithms for risk stratification involving white-coat hypertension and masked hypertension, diurnal BP variability, and self-measur…

MaleGerontologymedicine.medical_specialtyAmbulatory blood pressureAdolescentScientific careerConditioning ClassicalCardiologyWhite coat hypertension030204 cardiovascular system & hematologyAssessment and DiagnosisHistory 21st Century03 medical and health sciences0302 clinical medicineself-measured blood pressureInternal MedicinemedicineHumansBlood pressure monitoringmasked hypertension030212 general & internal medicineChildIntensive care medicineAdvanced and Specialized Nursingbusiness.industryblood pressureGeneral MedicineBlood Pressure Monitoring AmbulatoryHistory 20th Centurymedicine.diseaseCircadian RhythmClinical PracticeMasked HypertensionBlood pressureCardiovascular DiseasesHypertensionRisk stratificationFemaleCardiology and Cardiovascular Medicinebusinessdiurnal blood pressure variabilitywhite-coat hypertensionBlood Pressure Monitoring
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Average real variability of 24-h systolic blood pressure is associated with microalbuminuria in patients with primary hypertension.

2015

Limited and conflicting data are available about the association between short-term blood pressure (BP) variability and urinary albumin excretion rate (uAER). The objective of our study was to analyze the relationships between microalbuminuria (MAU), defined as an uAER between 20 and 200 μg min(-1), and short-term BP variability (BPV), assessed as average real variability (ARV), weighted s.d. of 24-h BP and as s.d. of daytime and night-time BP. The study population consisted of 315 untreated essential hypertensives with normal estimated glomerular filtration rate (>60 ml min(-1) per 1.73 m(2)), who underwent 24-h ambulatory BP monitoring and 24-h uAER determination. MAU was detected in 82 (…

Blood pressure variabilityAdultMalemedicine.medical_specialtyAmbulatory blood pressureSettore MED/09 - Medicina InternamicroalbuminuriaDiastoleRenal functionBlood Pressure030204 cardiovascular system & hematologyEssential hypertension03 medical and health sciences0302 clinical medicineInternal medicinetarget organ damageInternal MedicinemedicineAlbuminuriaHumans030212 general & internal medicineambulatory blood pressureSettore MED/14 - Nefrologiabusiness.industryMiddle Agedmedicine.diseaseSettore MED/11 - Malattie Dell'Apparato CardiovascolareEndocrinologyBlood pressureHypertensionAlbuminuriaCardiologyPopulation studyMicroalbuminuriaFemalemedicine.symptombusinessJournal of human hypertension
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Towards understanding the complexity of cardiovascular oscillations: Insights from information theory.

2018

Abstract Cardiovascular complexity is a feature of healthy physiological regulation, which stems from the simultaneous activity of several cardiovascular reflexes and other non-reflex physiological mechanisms. It is manifested in the rich dynamics characterizing the spontaneous heart rate and blood pressure variability (HRV and BPV). The present study faces the challenge of disclosing the origin of short-term HRV and BPV from the statistical perspective offered by information theory. To dissect the physiological mechanisms giving rise to cardiovascular complexity in different conditions, measures of predictive information, information storage, information transfer and information modificati…

Blood pressure variabilityAdultMalemedicine.medical_specialtySupine positionAdolescent0206 medical engineeringInformation TheoryHealth InformaticsBlood Pressure02 engineering and technologyBaroreflexCardiovascular Physiological Phenomena03 medical and health sciencesElectrocardiographyYoung AdultRedundancy0302 clinical medicineHeart RateInternal medicineHeart ratemedicineHeart rate variabilityHumansVagal toneHeart rate variabilitybusiness.industryModels CardiovascularCardiorespiratory fitnessSignal Processing Computer-AssistedComplexity020601 biomedical engineeringComputer Science ApplicationsCausalityBlood pressureSettore ING-INF/06 - Bioingegneria Elettronica E InformaticaCardiologyFemalebusiness030217 neurology & neurosurgeryRespiratory minute volumeComputers in biology and medicine
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[PP.07.19] ASSOCIATION OF MAXIMUM SPEED OF BLOOD PRESSURE RISE DURING 24-H ABPM WITH SUBCLINICAL RENAL DAMAGE IN ESSENTIAL HYPERTENSION

2017

Objective: Experimental studies documented that the mechanical injury of intravascular pressure on the vessel wall, which results in vascular remodelling and atherosclerosis, may be more closely associated to oscillatory than to steady laminar shear stress This suggests that the hypertensive patient's prognosis may depend not only on average BP level but also on the degree and rate of BP variation. Little is known about the relationships between early renal abnormalities and the rate of BP changes assessed by intermittent 24-h ambulatory BP monitoring (ABPM). Our study was aimed to analyse the relationships between subclinical renal damage (SRD), defined as the presence of microalbuminuria …

Arterial hypertensionBlood pressure variabilitymedicine.medical_specialtySettore MED/09 - Medicina InternaPhysiologybusiness.industryRenal damageAmbulatory blood pressureEssential hypertensionmedicine.diseaseRenal dysfunction.Blood pressure riseInternal medicineInternal MedicineCardiologyMedicineCardiology and Cardiovascular MedicinebusinessSubclinical infectionJournal of Hypertension
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Disentangling cardiovascular control mechanisms during head-down tilt via joint transfer entropy and self-entropy decompositions

2015

A full decomposition of the predictive entropy (PE) of the spontaneous variations of the heart period (HP) given systolic arterial pressure (SAP) and respiration (R) is proposed. The PE of HP is decomposed into the joint transfer entropy (JTE) from SAP and R to HP and self-entropy (SE) of HP. The SE is the sum of three terms quantifying the synergistic/redundant contributions of HP and SAP, when taken individually and jointly, to SE and one term conditioned on HP and SAP denoted as the conditional SE (CSE) of HP given SAP and R. The JTE from SAP and R to HP is the sum of two terms attributable to SAP or R plus an extra term describing the redundant/synergistic contribution to the JTE. All q…

Supine positionInformation storageComputer sciencePhysiologyAutonomic nervous system; Baroreflex; Blood pressure variability; Cardiopulmonary coupling; Heart rate variability; Information dynamics; Multivariate linear regression analysis; Physiology; Physiology (medical)Cardiovascular controlAutonomic Nervous Systemlcsh:PhysiologyNuclear magnetic resonanceCardiopulmonary couplingPhysiology (medical)Cardiac controlHeart rate variabilityOriginal Researchlcsh:QP1-981redundancymultivariate linear regression analysiscardiopulmonary couplingBaroreflexHead-Down TiltInformation dynamicSynergySettore ING-INF/06 - Bioingegneria Elettronica E InformaticaSystolic arterial pressureTransfer entropyblood pressure variabilityMultivariate linear regression analysiinformation dynamicsAlgorithmFrontiers in Physiology
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RELATIONSHIPS BETWEEN SHORT-TERM BLOOD PRESSURE VARIABILITY AND EARLY RENAL DYSFUNCTION IN ESSENTIAL HYPERTENSIVE PATIENTS

2014

Blood pressure variabilityBlood pressure variability; Ambulatory Blood pressure monitoring; renal damage; arterial hypertensionAmbulatory Blood pressure monitoringarterial hypertensionrenal damage
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Basic cardiovascular variability signals: mutual directed interactions explored in the information domain.

2017

The study of short-term cardiovascular interactions is classically performed through the bivariate analysis of the interactions between the beat-to-beat variability of heart period (RR interval from the ECG) and systolic blood pressure (SBP). Recent progress in the development of multivariate time series analysis methods is making it possible to explore how directed interactions between two signals change in the context of networks including other coupled signals. Exploiting these advances, the present study aims at assessing directional cardiovascular interactions among the basic variability signals of RR, SBP and diastolic blood pressure (DBP), using an approach which allows direct compar…

MaleMultivariate statisticsAdolescentPhysiologySystole0206 medical engineeringBiomedical EngineeringBiophysicsContext (language use)Blood Pressure02 engineering and technologyBivariate analysisBaroreflex03 medical and health sciencesElectrocardiography0302 clinical medicineinformation domainDiastoleHeart RatePhysiology (medical)StatisticsHumansbaroreflexMathematicsResting state fMRIheart rate variabilityMultivariate time series analysiscomplex system020601 biomedical engineeringcardiovascular oscillationBlood pressureBiophysicInformation domainSettore ING-INF/06 - Bioingegneria Elettronica E InformaticaFemaleblood pressure variability030217 neurology & neurosurgeryHumancirculatory and respiratory physiologyPhysiological measurement
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ABSENCE OF RELATIONSHIPS BETWEEN SHORT-TERM BLOOD PRESSURE VARIABILITY AND EARLY RENAL DYSFUNCTION IN HYPERTENSION

2014

Blood pressure variability

Blood pressure variabilityambulatory blood pressure monitoring arterial hypertension.renal disease
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