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Pereira MM, Torrado J, Bock J, Sosa C, Diaz A, Bia D, Zócalo Y. Wave separation analysis-derived indexes obtained from radial and carotid tonometry in healthy pregnancy and pregnancy-associated hypertension: Comparison with pulse wave analysis-derived indexes. Front Cardiovasc Med 2022; 9:997452. [PMID: 36386340 PMCID: PMC9664074 DOI: 10.3389/fcvm.2022.997452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 10/10/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Increased wave reflections assessed by pulse wave analysis (PWA) was proposed as one of the potential culprits of hypertension seen in women with pregnancy-associated hypertension (PAH). However, this statement has never been confirmed with "Wave Separation Analysis" (WSA), a more sophisticated mathematical approach that analyzes the amplitude and interaction between forward and backward aortic pressure waveform components. OBJECTIVE To characterize potential changes in pressure wave components of PAH compared to healthy non-pregnant (NP) women and women with normal pregnancies (HP) by using WSA and compared these findings with PWA-derived indexes; secondarily, to evaluate differences in WSA-derived indexes between subgroups of PAH (i.e., preeclampsia [PE] and gestational hypertension [GH]). METHODS Using radial and carotid applanation tonometry, we quantified in HP (n = 10), PAH (n = 16), and NP (n = 401): (i) PWA-derived indexes; (ii) WSA-derived indexes: forward (Pf) and backward (Pb) waveform components, backward component arrival time (PbAT), reflection magnitude (RM = Pb/Pf) and index [RIx = Pb/(Pf + Pb)]. RESULTS While PAH was associated with a higher Pf compared to HP and NP, Pb and PbAT were similar between the groups. Both GH and PE showed a higher Pf compared to HP, but only PE had a trend of presenting with higher Pb and lower PbAT compared to the other groups. Finally, PAH showed a trend of having lower RM and RIx compared to NP and HP, with no differences between GH and PE. CONCLUSION PAH was associated with higher Pf, but not higher Pb, compared to NP and HP, although PE also demonstrated a trend of higher Pb.
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Affiliation(s)
- María M. Pereira
- Department of Obstetrics and Gynecology, BronxCare Hospital Center a Clinical Affiliate of Mt Sinai Health Systems and Academic Affiliate of Icahn School of Medicine, Bronx, NY, United States
| | - Juan Torrado
- Department of Internal Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Joshua Bock
- Department of Internal Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Claudio Sosa
- Department of Obstetrics and Gynecology “C”, Pereira-Rossell Hospital, School of Medicine, Republic University, Montevideo, Uruguay
| | - Alejandro Diaz
- Consejo Nacional de Investigaciones Científicas y Técnicas, Tandil, Argentina
| | - Daniel Bia
- Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Department of Physiology, School of Medicine, Republic University, Montevideo, Uruguay
| | - Yanina Zócalo
- Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Department of Physiology, School of Medicine, Republic University, Montevideo, Uruguay,*Correspondence: Yanina Zócalo,
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Gómez-García M, Torrado J, Pereira M, Bia D, Zócalo Y. Fat-Free Mass Index, Visceral Fat Level, and Muscle Mass Percentage Better Explain Deviations From the Expected Value of Aortic Pressure and Structural and Functional Arterial Properties Than Body Fat Indexes. Front Nutr 2022; 9:856198. [PMID: 35571946 PMCID: PMC9099434 DOI: 10.3389/fnut.2022.856198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/21/2022] [Indexed: 12/15/2022] Open
Abstract
Bioelectrical impedance analysis (BIA)-derived indexes [e.g., fat (FMI) and fat-free mass indexes (FFMI), visceral fat level (VFL)] are used to characterize obesity as a cardiovascular risk factor (CRF). The BIA-derived index that better predicts arterial variability is still discussed.
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Affiliation(s)
- Mariana Gómez-García
- Departamento de Educación Física y Salud, Instituto Superior de Educación Física, Universidad de la República, Montevideo, Uruguay
- CUiiDARTE-Movimiento, Actividad, Salud (CUiiDARTE-MAS), Comisión Sectorial de Investigación Científica, Universidad de la República, Montevideo, Uruguay
| | - Juan Torrado
- CUiiDARTE-Movimiento, Actividad, Salud (CUiiDARTE-MAS), Comisión Sectorial de Investigación Científica, Universidad de la República, Montevideo, Uruguay
- Department of Internal Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, New York, NY, United States
| | - María Pereira
- Department of Obstetrics and Gynecology, BronxCare Hospital Center a Clinical Affiliate of Mt Sinai Health Systems and Academic Affiliate of Icahn School of Medicine, New York, NY, United States
| | - Daniel Bia
- CUiiDARTE-Movimiento, Actividad, Salud (CUiiDARTE-MAS), Comisión Sectorial de Investigación Científica, Universidad de la República, Montevideo, Uruguay
- Departamento de Fisiología, Facultad de Medicina, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Universidad de la República, Montevideo, Uruguay
| | - Yanina Zócalo
- CUiiDARTE-Movimiento, Actividad, Salud (CUiiDARTE-MAS), Comisión Sectorial de Investigación Científica, Universidad de la República, Montevideo, Uruguay
- Departamento de Fisiología, Facultad de Medicina, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Universidad de la República, Montevideo, Uruguay
- *Correspondence: Yanina Zócalo
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Lafta A, Ukrainetz J, Davison S, Thompson S, Bello A, Braam B. Inter- and intradialytic fluid volume changes and vascular stiffness parameters in patients on hemodialysis. PLoS One 2022; 17:e0262519. [PMID: 35113896 PMCID: PMC8812974 DOI: 10.1371/journal.pone.0262519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 12/28/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Whether fluid overload is associated with vascular stiffness parameters in hemodialysis (HD) patients has not been fully elucidated. We hypothesized that interdialytic fluid accumulation increases vascular stiffness parameters, which improves with intradialytic ultrafiltration. METHODS Fluid overload and vascular stiffness parameters were assessed in 39 HD patients (20 with and 19 without fluid overload) and compared to 26 healthy controls. Fluid status was assessed 15 minutes before the mid-week HD session by bio-impedance spectroscopy. Following this, ambulatory pulse wave velocity (PWV) and augmentation index (AIx) were measured for 24 hours before another mid-week HD session and then for 5 hours starting 30 minutes before and ending 30 minutes after the session. RESULTS HD patients had significant fluid overload compared to healthy controls (2.0±2.4 vs. -0.2±0.6 L; P<0.001) and baseline PWV was higher (10.3±1.7 vs. 8.8±1.4 m/s; P<0.001). There was no significant difference between PWV and AIx in fluid overloaded and non-fluid overloaded HD patients prior to, or during the HD session. AIx of non-fluid overloaded HD patients improved after the HD session (P = 0.04). Average 24-hour AIx was higher in fluid overloaded HD patients (P<0.001). CONCLUSIONS Inter- and intradialytic changes in fluid volume were only weakly related to vascular stiffness parameters in HD patients. Although there was a modest reduction in AIx in non-fluid overloaded HD patients after the dialysis session, fluid removal did not improve vascular stiffness parameters during the HD session. We speculate that the effect of fluid overload correction on vascular stiffness parameters requires long-term adjustments in the vasculature.
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Affiliation(s)
- Aya Lafta
- Division of Nephrology and Immunology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Judy Ukrainetz
- Division of Nephrology and Immunology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
- Alberta Health Services, Alberta Kidney Care-North, University of Alberta Hospital, Edmonton, Alberta, Canada
| | - Sara Davison
- Division of Nephrology and Immunology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Stephanie Thompson
- Division of Nephrology and Immunology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Aminu Bello
- Division of Nephrology and Immunology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Branko Braam
- Division of Nephrology and Immunology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada
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Pereira MM, Torrado J, Sosa C, Diaz A, Bia D, Zócalo Y. Center-To-Periphery Arterial Stiffness Gradient Is Attenuated and/or Reversed in Pregnancy-Associated Hypertension. Front Cardiovasc Med 2022; 8:766723. [PMID: 35004884 PMCID: PMC8739768 DOI: 10.3389/fcvm.2021.766723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/22/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Non-pregnant (NP) women have a progressive increase in arterial stiffness from central-to-peripheral arteries [“stiffness gradient” (SG)], which is of physiologic importance since excessive pulsatility is filtered by the creation of wave reflections. If the aorta gets stiff with minimal or no change in the periphery, the SG is dissipated transmitting pressure disturbances to the microcirculation. It remains unknown the status of the SG in both women with healthy pregnancies (HP) and complicated by pregnancy-associated hypertension (PAH). Objective: To determine whether HP and PAH are associated with changes in SG. Secondarily, we aim at identifying potential differences between the subgroups of PAH (pre-eclampsia and gestational hypertension). Methods: HP (n = 10), PAH (n = 16), and healthy NP women (n = 401, to be matched for age, and cardiovascular risk with the pregnant women) were included. Carotid-to-femoral (cfPWV) and carotid-to-radial pulse wave velocity (crPWV), common carotid artery (CCA) and brachial artery (BA) diameters and elastic modulus (EM), and regional (cfPWV/crPWV or “PWV ratio”) and local (CCA EM/BA EM or “EM ratio”) SG were quantified. Results: HP showed no changes in PWV ratio compared with NP, in the presence of significantly lower cfPWV and crPWV. HP exhibited higher arterial diameters and lower CCA EM/BA EM compared to NP, without differences with PAH. PAH was associated with a significant increase in the PWV ratio that exceeded the levels of both NP and HP, explained by a lower (although significant) reduction of cfPWV with respect to that observed in HP with respect to NP, and a higher reduction in crPWV with respect to that observed between HP and NP. The blunted reduction in cfPWV observed in PAH coincided with an increase in the CCA EM. Conclusions: Compared with NP, HP was associated with unchanged PWV ratio but with a reduction in CCA EM/BA EM, in the setting of a generalized drop in arterial stiffness. Compared with NP and HP, PAH was associated with an “exaggerated rise” in the PWV ratio without changes in CCA EM/BA EM, in the setting of a blunt reduction in cfPWV but exaggerated crPWV drop. The SG attenuation/reversal in PAH was mainly driven by pre-eclampsia.
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Affiliation(s)
- María M Pereira
- Department of Obstetrics and Gynecology, BronxCare Hospital Center a Clinical Affiliate of Mt Sinai Health Systems and Academic Affiliate of Icahn School of Medicine, Bronx, NY, United States
| | - Juan Torrado
- Department of Internal Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Claudio Sosa
- Department of Obstetrics and Gynecology "C", Pereira-Rossell Hospital, School of Medicine, Republic University, Montevideo, Uruguay
| | - Alejandro Diaz
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Tandil, Argentina
| | - Daniel Bia
- Department of Physiology, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), School of Medicine, Republic University, Montevideo, Uruguay
| | - Yanina Zócalo
- Department of Physiology, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), School of Medicine, Republic University, Montevideo, Uruguay
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STONE K, FRYER S, FAULKNER J, MEYER ML, HEFFERNAN K, KUCHARSKA-NEWTON A, ZIEFF G, PATERSON C, MATSUSHITA K, HUGHES TM, TANAKA H, STONER L. The aortic-femoral arterial stiffness gradient is blood pressure independent in older adults: the atherosclerosis risk in communities (ARIC) study. J Hypertens 2021; 39:2361-2369. [PMID: 34343145 PMCID: PMC8570989 DOI: 10.1097/hjh.0000000000002937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Aortic arterial stiffness is a strong independent predictor of cardiovascular disease (CVD); however, its dependence on mean arterial pressure (MAP) limits its clinical utility. The aortic-femoral arterial stiffness gradient (af-SG), a novel marker of CVD risk, may be a promising alternative, but its dependence on MAP is not known. The aim of this study was to determine the relationship between MAP and the af-SG in healthy older adults and those with established disease, including hypertension and diabetes. METHOD We evaluated the dependency of the af-SG on MAP in healthy older adults (n = 694, aged 74 ± 5 years), and adults with hypertension (n = 2040, aged 76 ± 5 years), and diabetes (n = 1405, aged 75 ± 5 years) as part of the community-based Atherosclerosis Risk in Communities (ARIC) Study. Carotid-femoral pulse-wave velocity (cfPWV), femoral-ankle PWV (faPWV) and blood pressure were measured using standardized protocols. The af-SG was calculated as faPWV divided by cfPWV. Multivariable regression analysis was performed to test the independent association of MAP with af-SG, with adjustments for known confounders, including age, sex, BMI, blood glucose and heart rate. RESULTS There was no significant relationship between the af-SG and MAP in healthy (β = 0.002, P = 0.301), hypertension (β = -0.001, P = 0.298) or diabetes (β = -0.001, P = 0.063) population groups, with MAP explaining less than 0.1, less than 0.1 and 0.2% of the variance in the af-SG, respectively. CONCLUSION These findings suggest that the af-SG may be regarded as a MAP independent index of arterial health and CVD risk in older adults.
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Affiliation(s)
- Keeron STONE
- School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
| | - Simon FRYER
- School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
| | - James FAULKNER
- Department of Sport, Exercise & Health, University of Winchester, Winchester, UK
| | - Michelle L MEYER
- Department of Emergency Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kevin HEFFERNAN
- Department of Exercise Science, Syracuse University, Syracuse, USA
| | - Anna KUCHARSKA-NEWTON
- Department of Epidemiology, The Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Epidemiology, College of Public Health, University of Kentucky, Lexington, KY, USA
| | - Gabriel ZIEFF
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Craig PATERSON
- School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
| | - Kunihiro MATSUSHITA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Timothy M. HUGHES
- Section of Gerontology and Geriatric Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Hirofumi TANAKA
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas, USA
| | - Lee STONER
- Department of Epidemiology, College of Public Health, University of Kentucky, Lexington, KY, USA
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6
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STONE K, FRYER S, MEYER ML, KUCHARSKA-NEWTON A, FAULKNER J, ZIEFF G, PATERSON C, CREDEUR D, MATSUSHITA K, HUGHES TM, TANAKA H, STONER L. The aortic-femoral arterial stiffness gradient: an atherosclerosis risk in communities (ARIC) study. J Hypertens 2021; 39:1370-1377. [PMID: 33560059 PMCID: PMC8217898 DOI: 10.1097/hjh.0000000000002808] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aortic to femoral arterial stiffness gradient (af-SG) may be a novel measure of arterial health and cardiovascular disease (CVD) risk, but its association with CVD risk factors and CVD status, and whether or not they differ from the referent measure, carotid-femoral pulse-wave velocity (cfPWV), is not known. METHOD Accordingly, we compared the associations of the af-SG and cfPWV with (i) age and traditional CVD risk factors and (ii) CVD status. We evaluated 4183 older-aged (75.2 ± 5.0 years) men and women in the community-based Atherosclerosis Risk in Communities (ARIC) Study. cfPWV and femoral-ankle PWV (faPWV) were measured using an automated cardiovascular screening device. The af-SG was calculated as faPWV divided by cfPWV. Associations of af-SG and cfPWV with age, CVD risk factors (age, BMI, blood pressure, heart rate, glucose and blood lipid levels) and CVD status (hypertension, diabetes, coronary heart disease, heart failure, stroke) were determined using linear and logistic regression analyses. RESULTS (i) the af-SG and cfPWV demonstrated comparable associations with age and CVD risk factors, except BMI. (ii) a low af-SG was associated with diabetes, coronary heart disease, heart failure and stroke, whilst a high cfPWV was only associated with diabetes. CONCLUSION Although future studies are necessary to confirm clinical utility, the af-SG is a promising tool that may provide a unique picture of hemodynamic integration and identification of CVD risk when compared with cfPWV.
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Affiliation(s)
- Keeron STONE
- School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
| | - Simon FRYER
- School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
| | - Michelle L MEYER
- Department of Emergency Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Anna KUCHARSKA-NEWTON
- Department of Epidemiology, The Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Epidemiology, College of Public Health, University of Kentucky, Lexington, KY, USA
| | - James FAULKNER
- Department of Sport, Exercise & Health, University of Winchester, Winchester, UK
| | - Gabriel ZIEFF
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Craig PATERSON
- School of Sport and Exercise, University of Gloucestershire, Gloucester, UK
| | - Daniel CREDEUR
- School of Kinesiology, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Kunihiro MATSUSHITA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Timothy M. HUGHES
- Section of Gerontology and Geriatric Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Hirofumi TANAKA
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas, USA
| | - Lee STONER
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Liu JC, Hsu YP, Zhu JC, Hao WR, Yang TY, Sung LC, Kao PF, Hwang J, Hsiu H. Beat-to-beat and spectral analyses of the noninvasive radial pulse and laser-Doppler signals in patients with hypertension. Clin Hemorheol Microcirc 2021; 79:365-379. [PMID: 34180410 DOI: 10.3233/ch-201056] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study performed beat-to-beat and spectral analyses of 20-minute skin-surface laser-Doppler-flowmetry (LDF) and radial blood-pressure-waveform (BPW) signals in order to compare the blood-flow perfusion condition and regulatory mechanisms between essential-hypertension (EHT) patients and aged-matched control subjects. Beat-to-beat LDF analyses yielded the pulse width (PW), AC-to-DC ratio (AD), and their corresponding variability indices (coefficients of variation [CVs]). The relative energy contributions (RECs) of five characteristic frequency peaks (defined as FR1-FR5) were also calculated. Spectral BPW analysis obtained the amplitude proportion (Cn) and phase angle (Pn) of each harmonic component n. PW, AD, AD_CV, and REC of FR2 were significantly smaller in the EHT group than in the control group. Regarding BPW indices, C1, C2, C4, and C5 were significantly larger and P2-P8 were significantly smaller in EHT patients than in controls. The present results indicate that BPW and LDF indices can be used to evaluate the blood-flow perfusion efficiency and microcirculatory regulatory activities in EHT. Sex differences were found, with the effects being more prominent in female patients. These findings may be partly attributable to impairment of endothelial and neural regulatory functions. The present findings might aid the development of new noninvasive methods for reducing the risk of EHT-induced damage.
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Affiliation(s)
- Ju-Chi Liu
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan
| | - Yi-Ping Hsu
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Jia-Cheng Zhu
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Wen-Rui Hao
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Tsung-Yeh Yang
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Li-Chun Sung
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan
| | - Pai-Feng Kao
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan
| | - Jaulang Hwang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hsin Hsiu
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
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8
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Pereira MM, Torrado J, Sosa C, Zócalo Y, Bia D. Role of arterial impairment in preeclampsia: should the paradigm shift? Am J Physiol Heart Circ Physiol 2021; 320:H2011-H2030. [PMID: 33797272 DOI: 10.1152/ajpheart.01005.2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Preeclampsia is a worldwide pregnancy complication with serious short- and long-term maternal and neonatal consequences. Our understanding of preeclampsia pathophysiology has significantly evolved over the last decades with the recognition that impaired arterial function and structure may occur early in the course of pregnancy, preceding the clinic-humoral syndrome and driving long-term cardiovascular disease risk in the future of these patients. Although an early abnormal placentation may be the inciting event for a large proportion of cases, there is growing evidence that challenges the placental hypothesis in all affected women, since placental histopathology lesions thought to be characteristic are neither sensitive nor specific markers for the disorder. Recent hemodynamic investigations and studies on left ventricular function and structure in women with preeclampsia further challenge this universal paradigm and propose that placental dysfunction could be secondary to a maternal cardiovascular maladaptation to pregnancy in certain patients. Supporting this hypothesis, certain vascular features, which are characteristically enhanced in normal pregnancy allowing a healthy vascular adaptation, are absent in preeclampsia and comparable to the nonpregnant population. However, arterial biomechanics in preeclampsia may only not cope with hemodynamic demands of pregnancy but also impose additional detrimental loads to the maternal heart ("impaired left-ventricle-aorta coupling") and transmit pressure and flow disturbances into the fetoplacental circulation ("impaired large arteries-microcirculation coupling"). In this review, we analyze the major role of the arterial dysfunction in the cardiovascular maladaptation hypothesis of preeclampsia, shed light on its potential etiopathogenic link, and discuss the complementary nature of the placental and cardiovascular theories.
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Affiliation(s)
- María M Pereira
- Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, Virginia
| | - Juan Torrado
- Jacobi Medical Center, Department of Internal Medicine, Albert Einstein College of Medicine, Bronx, New York
| | - Claudio Sosa
- Department of Obstetrics and Gynecology "C", Pereira-Rossell Hospital, School of Medicine, Republic University, Montevideo, Uruguay
| | - Yanina Zócalo
- Centro Universitario de Investigación, Innovación y Diagnóstico Arterial, Department of Physiology, School of Medicine, Republic University, Montevideo, Uruguay
| | - Daniel Bia
- Centro Universitario de Investigación, Innovación y Diagnóstico Arterial, Department of Physiology, School of Medicine, Republic University, Montevideo, Uruguay
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9
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Bia D, Zócalo Y. Physiological Age- and Sex-Related Profiles for Local (Aortic) and Regional (Carotid-Femoral, Carotid-Radial) Pulse Wave Velocity and Center-to-Periphery Stiffness Gradient, with and without Blood Pressure Adjustments: Reference Intervals and Agreement between Methods in Healthy Subjects (3-84 Years). J Cardiovasc Dev Dis 2021; 8:3. [PMID: 33445548 PMCID: PMC7827252 DOI: 10.3390/jcdd8010003] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/02/2021] [Accepted: 01/08/2021] [Indexed: 12/13/2022] Open
Abstract
In addition to being a marker of cardiovascular (CV) aging, aortic stiffening has been shown to be independently associated with increased CV risk (directly and/or indirectly due to stiffness-gradient attenuation). Arterial stiffness determines the rate at which the pulse pressure wave propagates (i.e., pulse wave velocity, PWV). Thus, propagated PWV (i.e., the distance between pressure-wave recording sites divided by the pulse transit time) was proposed as an arterial stiffness index. Presently, aortic PWV is considered a gold-standard for non-invasive stiffness evaluation. The limitations ascribed to PWV have hampered its use in clinical practice. To overcome the limitations, different approaches and parameters have been proposed (e.g., local PWV obtained by wave separation and pulse wave analysis). In turn, it has been proposed to determine PWV considering blood pressure (BP) levels (β-PWV), so as to evaluate intrinsic arterial stiffness. It is unknown whether the different approaches used to assess PWV or β-PWV are equivalent and there are few data regarding age- and sex-related reference intervals (RIs) for regional and local PWV, β-PWV and PWV ratio. AIMS (1) to evaluate agreement between data from different stiffness indexes, (2) to determine the need for sex-specific RIs, and (3) to define RIs for PWV, β-PWV and PWV ratio in a cohort of healthy children, adolescents and adults. METHODS 3619 subjects (3-90 y) were included, 1289 were healthy and non-exposed to CV risk factors. Carotid-femoral (cfPWV) and carotid-radial (crPWV) PWV were measured (SphygmoCor System (SCOR)) and PWV ratio (cfPWV/crPWV) was quantified. Local aortic PWV was obtained directly from carotid waves (aoPWV-Carotid; SCOR) and indirectly (generalized transfer function use) from radial (aoPWV-Radial; SCOR) and brachial (aoPWV-Brachial; Mobil-O-Graph system (MOG)) recordings. β-PWV was assessed by means of cardio-ankle brachial (CAVI) and BP-corrected CAVI (CAVIo) indexes. Analyses were done before and after adjustment for BP. Data agreement was analyzed (correlation, Bland-Altman). Mean and standard deviation (age- and sex-related) equations were obtained for PWV parameters (regression methods based on fractional polynomials). RESULTS The methods and parameters used to assess aortic stiffness showed different association levels. Stiffness data were not equivalent but showed systematic and proportional errors. The need for sex-specific RIs depended on the parameter and/or age considered. RIs were defined for all the studied parameters. The study provides the largest data set related to agreement and RIs for stiffness parameters obtained in a single population.
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Affiliation(s)
- Daniel Bia
- Departamento de Fisiología, Facultad de Medicina, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Universidad de la República, General Flores 2125, 11800 Montevideo, Uruguay
| | - Yanina Zócalo
- Departamento de Fisiología, Facultad de Medicina, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Universidad de la República, General Flores 2125, 11800 Montevideo, Uruguay
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Bai Q, Su CY, Zhang AH, Wang T, Tang W. Loss of the Normal Gradient in Arterial Compliance and Outcomes of Chronic Kidney Disease Patients. Cardiorenal Med 2019; 9:297-307. [PMID: 31238317 DOI: 10.1159/000500479] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 04/18/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND In dialysis patients, loss of the normal gradient in arterial compliance, assessed by the pulse wave velocity (PWV) ratio, predicts all-cause mortality better than does carotid-femoral PWV (CF-PWV) alone. However, the prognostic significance of the PWV ratio for outcome in chronic kidney disease (CKD) patients remains unclear. METHODS In this longitudinal cohort study, CKD patients who visited our CKD management clinic between April 27, 2006, and March 27, 2008, were included and followed up. To assess the gradient in arterial compliance, the PWV ratio was calculated using CF-PWV divided by carotid-radial PWV. RESULTS A total of 209 patients in CKD stages 1-4 with a median follow-up of 3.74 years were included. Patients with higher PWV ratio were relatively older (p < 0.001) and had worse renal function (p < 0.001), more hypertension (p < 0.001), diabetes mellitus (p < 0.001), and cardiovascular or cerebrovascular disease (p < 0.001). The median time to patient outcome (death, renal replacement therapy, or double increase in serum creatinine from baseline) in the group with a PWV ratio above the median (89.8 months, 95% CI 84.2-95.5) was shorter than that in the group with a PWV ratio below the median (105.3 months, 95% CI 101.3-109.3, p = 0.001). Univariate Cox regression analysis showed that both PWV ratio and CF-PWV were significantly associated with patient outcome. In multivariate Cox regression analysis, both PWV ratio and CF-PWV were associated with patient outcome. However, the HR for CF-PWV (2.177, 95% CI 1.064-4.453, p = 0.033) was slightly higher than that for PWV ratio (2.091, 95% CI 1.049-4.167, p = 0.036). There was a significant interaction effect between PWV ratio and CKD stage. It was shown that patients with advanced CKD stages and higher PWV ratios had a significantly higher risk of adverse CKD outcome (p = 0.006). CONCLUSIONS The PWV ratio, as a measure of loss of the normal gradient in arterial compliance, was associated with CKD patient outcome. Patients with advanced CKD and a higher PWV ratio had a significantly higher risk of adverse CKD outcome.
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Affiliation(s)
- Qiong Bai
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Chun-Yan Su
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Ai-Hua Zhang
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Tao Wang
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Wen Tang
- Department of Nephrology, Peking University Third Hospital, Beijing, China,
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Armentano RL, Cymberknop LJ. Quantitative Vascular Evaluation: From Laboratory Experiments to Point-of-Care Patient (Clinical Approach). Curr Hypertens Rev 2018; 14:86-94. [PMID: 29651956 PMCID: PMC6142407 DOI: 10.2174/1573402114666180413144119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 03/29/2018] [Accepted: 04/02/2018] [Indexed: 11/22/2022]
Abstract
To enhance the efficiency of patient-specific risk stratification and diagnosis, an assessment of arterial structural and functional changes associated to a vascular disease in both early and advanced stages have been proposed, with the objective of limiting the progression or revert vascular alterations. In this connection, an interdisciplinary international partnership made up by research institutions from France, Argentina, Uruguay and Spain was established, with the objective of contributing to the evaluation and follow-up of factors involved in the physiopathology of cardiometabolic diseases and human aging. Several studies, such as the effect of hypertension in large arteries, alterations in arterial wall viscosity, stiffness and inertia, endothelial function and vascular reactivity, cardiovascular risk improvement, vascular age assessment and cryografts vascular response evaluation were carried out as a result of this international collaboration during the last twenty-five years.
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Affiliation(s)
- Ricardo L Armentano
- Cardiovascular Engineering Lab, GIBIO, Universidad Tecnologica Nacional, Buenos Aires, Argentina.,Department of Translational Engineering, Universidad Favaloro, Buenos Aires, Argentina.,Biological Engineering Department & UNDP URU-84-002, Universidad de la República, Montevideo, Uruguay
| | - Leandro J Cymberknop
- Cardiovascular Engineering Lab, GIBIO, Universidad Tecnologica Nacional, Buenos Aires, Argentina.,Department of Translational Engineering, Universidad Favaloro, Buenos Aires, Argentina
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Mismatch between stiffness in elastic and muscular arteries as a predictor of vascular calcification in dialysis patients. Aging Clin Exp Res 2018; 30:375-382. [PMID: 28660595 DOI: 10.1007/s40520-017-0787-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 06/15/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND Vascular calcification is one of the risk factors for arterial stiffness in patients with chronic kidney disease. We hypothesized that a mismatch between elastic and muscular arteries, represented as pulse wave velocity (PWV) ratio, could depict the extent of vascular calcification in end-stage renal disease. We also aimed to compare the predictive PWV ratio value to other factors possibly related to vascular calcification in dialysis population. METHODS In this cross-sectional study, in 60 chronic dialysis patients without previous cerebrovascular events, cardiovascular disease and events or clinically evident peripheral artery disease (ankle-brachial index >0.9), carotid-femoral and carotid-radial PWV as well as central hemodynamic parameters were measured by applanation tonometry (SphygmoCor). The PWV ratio using carotid-femoral PWV divided by carotid-radial PWV was calculated. Each patient underwent blood tests and chest X-ray for aortic arch calcification scoring. Two experienced radiologists blinded to patient's medical data evaluated chest X-rays (Cohen's kappa coefficient 0.76) and calculated how many sectors were calcified (Ogawa et al. in Hemodial Int 13:301-306, 2009). Differently scored chest X-rays were repeatedly reviewed and a consensus was reached. RESULTS The study population consisted of 31 (51.7%) males and 29 (48.3%) females, mean age 52.73 ± 13.76 years. Increased risk for aortic arch calcification was associated with higher PWV ratio even after adjustment for age, height, heart rate, ferritin level and C-reactive protein level (OR 2.59E+04, 95% CI 2.43E+01, 2.65E+09, p = 0.021). PWV ratio together with above-mentioned variables could predict the presence of aortic arch calcification with specificity of 93% (95% CI 78, 99%) and sensitivity of 53% (95% CI 34, 72%). CONCLUSION The elastic and muscular arteries' stiffness mismatch was strongly associated with the extent of aortic arch calcification in this dialysis population and had better calcification predictive value compared to other demographic, hemodynamic and biochemical markers.
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Fortier C, Desjardins MP, Agharazii M. Aortic-Brachial Pulse Wave Velocity Ratio: A Measure of Arterial Stiffness Gradient Not Affected by Mean Arterial Pressure. Pulse (Basel) 2017; 5:117-124. [PMID: 29761086 DOI: 10.1159/000480092] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/04/2017] [Indexed: 11/19/2022] Open
Abstract
Background Aortic stiffness, measured by carotid-femoral pulse wave velocity (cf-PWV), is used for the prediction of cardiovascular risk. This mini-review describes the nonlinear relationship between cf-PWV and operational blood pressure, presents the proposed methods to adjust for this relationship, and discusses a potential place for aortic-brachial PWV ratio (a measure of arterial stiffness gradient) as a blood pressure-independent measure of vascular aging. Summary PWV is inherently dependent on the operational blood pressure. In cross-sectional studies, PWV adjustment for mean arterial pressure (MAP) is preferred, but still remains a nonoptimal approach, as the relationship between PWV and blood pressure is nonlinear and varies considerably among individuals due to heterogeneity in genetic background, vascular tone, and vascular remodeling. Extrapolations from the blood pressure-independent stiffness parameter β (β0) have led to the creation of stiffness index β, which can be used for local stiffness. A similar approach has been used for cardio-ankle PWV to generate a blood pressure-independent cardio-ankle vascular index (CAVI). It was recently demonstrated that stiffness index β and CAVI remain slightly blood pressure-dependent, and a more appropriate formula has been proposed to make the proper adjustments. On the other hand, the negative impact of aortic stiffness on clinical outcomes is thought to be mediated through attenuation or reversal of the arterial stiffness gradient, which can also be influenced by a reduction in peripheral medium-sized muscular arteries in conditions that predispose to accelerate vascular aging. Arterial stiffness gradient, assessed by aortic-brachial PWV ratio, is emerging to be at least as good as cf-PWV for risk prediction, but has the advantage of not being affected by operating MAP. Key Messages The negative impacts of aortic stiffness on clinical outcomes are proposed to be mediated through attenuation or reversal of arterial stiffness gradient. Aortic-brachial PWV ratio, a measure of arterial stiffness gradient, is independent of MAP.
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Affiliation(s)
- Catherine Fortier
- CHU de Québec Research Center, L'Hôtel-Dieu de Québec Hospital, and Division of Nephrology, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Marie-Pier Desjardins
- CHU de Québec Research Center, L'Hôtel-Dieu de Québec Hospital, and Division of Nephrology, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Mohsen Agharazii
- CHU de Québec Research Center, L'Hôtel-Dieu de Québec Hospital, and Division of Nephrology, Faculty of Medicine, Université Laval, Québec, QC, Canada
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Zócalo Y, Curcio S, García-Espinosa V, Chiesa P, Giachetto G, Bia D. Comparative Analysis of Arterial Parameters Variations Associated with Inter-Individual Variations in Peripheral and Aortic Blood Pressure: Cross-Sectional Study in Healthy Subjects Aged 2-84 years. High Blood Press Cardiovasc Prev 2017; 24:437-451. [PMID: 28948506 DOI: 10.1007/s40292-017-0231-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/12/2017] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION The association between arterial parameters and blood pressure (BP) interindividual variations could depend on the arterial segment, BP component (systolic, SBP; diastolic, DBP; pulse pressure, PP) and/or on whether central (cBP) or peripheral (pBP) BP variations are considered. AIM To assess and compare arterial parameters variations associated with interindividual variations in cBP and pBP. METHODS Healthy subjects (n = 923; 488 males, 2-84 years) were included. pBP and cBP waves were obtained (Mobil-O-Graph; SphygmoCor). Arterial diameter, intima-media thickness, local elastic modulus (carotid, CEM; brachial, BEM; femoral, FEM) and regional (carotid-radial and carotid-femoral pulse wave velocity; crPWV and cfPWV) arterial stiffness were determined. Associations between BP and arterial parameters interindividual variations were analyzed and compared (correlations; linear regressions; slopes comparisons) considering data transformed into z-scores. RESULTS Given a variation in z-cSBP or z-pSBP, z-CEM, z-FEM and z-cfPWV (stiffness indexes), were among the parameters with major BP-associated variations. z-crPWV and z-cfPWV, rather than local stiffness indexes were the parameters with major variations associated with z-DBP variations. z-cPP or z-pPP were associated with z-CEM and z-FEM variations, but not with brachial or regional stiffness variations. Most of the arterial parameters-BP slopes did not show significant differences when considering a variation in z-cSBP and z-pSBP. z-CEM and z-FEM were mainly associated with z-cPP and z-pPP variations, respectively. CONCLUSION Disregard of age and sex, the variations in arterial parameters associated with BP interindividual variations showed differences depending on whether variations were central or peripheral; in SBP, DBP or PP and depending on the arterial segment considered.
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Affiliation(s)
- Yanina Zócalo
- Physiology Department, School of Medicine, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Republic University, General Flores 2125, 11800, Montevideo, Uruguay.
| | - Santiago Curcio
- Physiology Department, School of Medicine, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Republic University, General Flores 2125, 11800, Montevideo, Uruguay
| | - Victoria García-Espinosa
- Physiology Department, School of Medicine, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Republic University, General Flores 2125, 11800, Montevideo, Uruguay
| | - Pedro Chiesa
- Servicio de Cardiología Pediátrica, Centro Hospitalario Pereira Rossell, ASSE-Ministry of Public Health, Boulevard Artigas 1550, 11600, Montevideo, Uruguay
| | - Gustavo Giachetto
- Clínica Pediátrica "C", Centro Hospitalario Pereira Rossell, ASSE, Republic University, Boulevard Artigas 1550, 11600, Montevideo, Uruguay
| | - Daniel Bia
- Physiology Department, School of Medicine, Centro Universitario de Investigación, Innovación y Diagnóstico Arterial (CUiiDARTE), Republic University, General Flores 2125, 11800, Montevideo, Uruguay
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