I Luso-Brazilian Positioning on Central Arterial Pressure

Brandão, Andréa Araújo; Amodeo, Celso; Alcántara, Cristina; Barbosa, Eduardo; Nobre, Fernando; Pinto, Fernando; Vilela-Martin, José Fernando; Mesquita-Bastos, José; Mota‐Gomes, Marco A.; Neves, Mário Fritsch; Malachias, Marcus Vinícius Bolivar; Rodrigues, Manuel de Carvalho; Passarelli, Oswaldo; Jardim, Paulo César Brandão Veiga; Cunha, Pedro; Póvoa, Rui Manuel dos Santos; Fonseca, Teresa; Dias, V.; Barroso, Weimar Sebba; Oigman, Wille

doi:10.5935/abc.20170011

Cited by 23 publications

(29 citation statements)

References 85 publications

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“…However, the pressure signals of the central arteries must be extracted from the further transformation of alternative waveforms for non-invasive measurement techniques [ 26 ]. Compared to branchial and radial arteries, the waveform morphology of the carotid artery was similar to the aorta owing to the site near the aortic artery with lower pressure distortion [ 34 ]. Based on the physiological aspect of non-invasive hemodynamic monitoring, the IPG-based carotid artery has a high potential for cardiovascular applications.…”

Section: Discussionmentioning

confidence: 99%

Bio-Impedance Measurement Optimization for High-Resolution Carotid Pulse Sensing

Wang

Chu

Chou

et al. 2021

Sensors

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Continuous hemodynamic monitoring is important for long-term cardiovascular healthcare, especially in hypertension. The impedance plethysmography (IPG) based carotid pulse sensing is a non-invasive diagnosis technique for measuring pulse signals and further evaluating the arterial conditions of the patient such as continuous blood pressure (BP) monitoring. To reach the high-resolution IPG-based carotid pulse detection for cardiovascular applications, this study provides an optimized measurement parameter in response to obvious pulsation from the carotid artery. The influence of the frequency of excitation current, electrode cross-sectional area, electrode arrangements, and physiological site of carotid arteries on IPG measurement resolution was thoroughly investigated for optimized parameters. In this study, the IPG system was implemented and installed on the subject’s neck above the carotid artery to evaluate the measurement parameters. The measurement results within 6 subjects obtained the arterial impedance variation of 2137 mΩ using the optimized measurement conditions, including excitation frequency of 50 kHz, a smaller area of 2 cm2, electrode spacing of 4 cm and 1.7 cm for excitation and sensing functions, and location on the left side of the neck. The significance of this study demonstrates an optimized measurement methodology of IPG-based carotid pulse sensing that greatly improves the measurement quality in cardiovascular monitoring.

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Section: Discussionmentioning

confidence: 99%

Bio-Impedance Measurement Optimization for High-Resolution Carotid Pulse Sensing

Wang

Chu

Chou

et al. 2021

Sensors

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“…No entanto, a ciência tenta avançar com o melhor entendimento e a aplicabilidade clínica de biomarcadores capazes de identificar precocemente o dano vascular no contexto da doença hipertensiva, antes mesmo da maior elevação dos valores de PA. O objetivo é aumentar a precisão na estratificação de risco CV em indivíduos considerados de risco baixo ou intermediário. 82,139,1010 As avaliações da pressão sistólica central e da rigidez arterial pela medida da velocidade de onda de pulso (VOP) ancoramse em evidências robustas a fim de identificar precocemente dano vascular e ser capazes de identificar e reestratificar aqueles indivíduos que, inicialmente considerados como de risco baixo e intermediário, na verdade podem apresentar risco mais elevado. Além disso, os valores de VOP superiores a 10 m/s podem caracterizar a presença de lesão subclínica em órgão-alvo, 156,298,1011 e o aumento na pressão sistólica central é preditor do desenvolvimento de HA.…”

Section: Definição Epidemiologia E Prevenção Primáriaunclassified

Diretrizes Brasileiras de Hipertensão Arterial – 2020

Barroso¹,

Rodrigues²,

Bortolotto³

et al. 2021

Arquivos Brasileiros De Cardiologia

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“…Arterial stiffness is assessed by carotid-femoral pulse wave velocity (PWV) (32) using the Complior Analyse (ALAM Medical, Paris, France). The straight distance between the two arterial sites is measured with an infantometer and data on BP, height, total body mass and distance between carotid and femoral artery sites are entered into the measuring device software for PWV calculation (32).…”

Section: Evaluation and Interventionsmentioning

confidence: 99%

Effects of Autonomic Nervous System Activation on Endothelial Function in Response to Acute Exercise in Hypertensive Individuals: Study Protocol for A Randomized Double-Blind Study

Waclawovsky

Boll

Neto

et al. 2020

Preprint

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Background: Arterial hypertension has a direct association with endothelial dysfunction and major cardiovascular events. There is evidence showing the benefits of aerobic exercise on flow-mediated dilation (FMD) in hypertensive individuals but little is known about the effect of autonomic nervous system (ANS) activation on FMD of the brachial artery in response to different types of exercise in this specific population. This study aims to examine the effects of ANS activation on FMD of the brachial artery in response to exercise in hypertensive individuals following a session of different types of exercise including aerobic exercise (AE), resistance exercise (RE) or combined exercise (CE). Methods: Thirty-nine hypertensive volunteers aged 35 to 55 years will be randomly assigned to two exercise sessions: AE (40 minutes on a cycle ergometer at 60% of HR reserve); RE (4 lower limb sets with 12 repetitions at 60% 1-RM for 40 minutes) or CE (RE for 20 minutes + AE for 20 minutes). Each exercise group will be randomized to receive either an α1-adrenergic blocker (doxazosin 0.05 mg/kg-1) or placebo. Ultrasound measurement of FMD is performed 10 minutes before and 10, 40 and 70 minutes after exercise. ANS activation is monitored using a Finometer and measurements are taken during 10 minutes before each FMD assessment. Arterial stiffness is assessed by pulse wave velocity (PWV) analysis using a Complior device. Discussion: We expect to demonstrate the effect of ANS activation on FMD of the brachial artery in hypertensive individuals in response to different types of exercise. This study may give some insight on how to improve exercise prescription for hypertension management. Trial registration: www.clinicaltrials.gov (ID: NCT04371757).

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I Luso-Brazilian Positioning on Central Arterial Pressure

Cited by 23 publications

References 85 publications

Bio-Impedance Measurement Optimization for High-Resolution Carotid Pulse Sensing

Bio-Impedance Measurement Optimization for High-Resolution Carotid Pulse Sensing

Diretrizes Brasileiras de Hipertensão Arterial – 2020

Effects of Autonomic Nervous System Activation on Endothelial Function in Response to Acute Exercise in Hypertensive Individuals: Study Protocol for A Randomized Double-Blind Study

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