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Kim HL, Jo SH. Arterial Stiffness and Heart Failure With Preserved Ejection Fraction. J Korean Med Sci 2024; 39:e195. [PMID: 38887204 PMCID: PMC11182699 DOI: 10.3346/jkms.2024.39.e195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/20/2024] [Indexed: 06/20/2024] Open
Abstract
Heart failure with preserved ejection fraction (HFpEF) is prevalent and associated with a poor prognosis, imposing a significant burden on society. Arterial stiffness is increasingly recognized as a crucial factor in the pathophysiology of HFpEF, affecting diagnosis, management, and prognosis. As a hallmark of vascular aging, arterial stiffness contributes to increased afterload on the left ventricle (LV), leading to diastolic dysfunction, a key feature of HFpEF. Elevated arterial stiffness is linked with common cardiovascular risk factors in HFpEF, such as hypertension, diabetes and obesity, exacerbating the progression of disease. Studies have demonstrated that patients with HFpEF exhibit significantly higher levels of arterial stiffness compared to those without HFpEF, highlighting the value of arterial stiffness measurements as both diagnostic and prognostic tools. Moreover, interventions aimed at reducing arterial stiffness, whether through pharmacological therapies or lifestyle modifications, have shown potential in improving LV diastolic function and patient outcomes. Despite these advancements, the precise mechanisms by which arterial stiffness contributes to HFpEF are still not fully understood, necessitating the need for further research.
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Affiliation(s)
- Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Ho Jo
- Division of Cardiology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea.
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Ho JS, Wong JJ, Gao F, Wee HN, Teo LLY, Ewe SH, Tan RS, Ching J, Chua KV, Lee LS, Koh WP, Kovalik JP, Koh AS. Adverse cardiovascular and metabolic perturbations among older women: 'fat-craving' hearts. Clin Res Cardiol 2023; 112:1555-1567. [PMID: 36651997 DOI: 10.1007/s00392-023-02156-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 01/09/2023] [Indexed: 01/19/2023]
Abstract
BACKGROUND Despite known sex-based differences in cardiovascular aging, differences in aging biology are poorly understood. We hypothesize that circulating metabolites studied cross-sectionally with cardiac aging may be associated with cardiovascular changes that distinguish cardiac aging in women. METHODS A population-based cohort of community men and women without cardiovascular disease from Singapore underwent detailed clinical and echocardiography examinations. Cross-sectional associations between cardiac functional characteristics and metabolomics profiles were examined. RESULTS Five hundred sixty-seven adults (48.9% women) participated. Women were younger (72 ± 4.4 years vs 73 ± 4.3 years, p = 0.022), had lower diastolic blood pressures (71 ± 11.0 mmHg vs 76 ± 11.2 mmHg, p < 0.0001, and less likely to have diabetes mellitus (18.0% vs 27.6%, p = 0.013) and smoking (3.8% vs 34.5%, p < 0.001). Body mass indices were similar (24 ± 3.8 kg/m2 vs 24 ± 3.4 kg/m2, p = 0.29), but women had smaller waist circumferences (81 ± 10.1 cm vs 85 ± 9.2 cm, p < 0.001). Women had a significantly higher E/e' ratios (10.9 ± 3.4 vs 9.9 ± 3.3, p = 0.007) and mitral A peak (0.86 ± 0.2 m/s vs 0.79 ± 0.2 m/s, p < 0.001) than men. Among women, lower E/e' ratio was associated with higher levels of C16 (OR 1.019, 95%CI 1.002-1.036, p = 0.029), C16:1 (OR 1.06, 95%CI 1.006-1.118, p = 0.028), serine (OR 1.019, 95%CI 1.002-1.036, p = 0.025), and histidine (OR 1.045, 95%CI 1.013-1.078, p = 0.006). Lower mitral A peak was associated with higher levels of histidine (OR 1.039, 95%CI 1.009-1.070, p = 0.011), isoleucine (OR 1.013, 95%CI 1.004-1.021, p = 0.004), and C20 (OR 1.341, 95%CI 1.067-1.684, p = 0.012). CONCLUSION Impairments in diastolic functions were more frequent among older women compared to men, despite lower prevalence of vascular risk factors and preserved cardiac structure. Cardiac aging in women correlated with metabolites involved in fatty acid oxidation and tricyclic acid cycle fuelling.
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Affiliation(s)
- Jien Sze Ho
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Jie Jun Wong
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
| | - Fei Gao
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | | | - Louis L Y Teo
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - See Hooi Ewe
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Ru-San Tan
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Jianhong Ching
- Duke-NUS Medical School, Singapore, Singapore
- KK Research Centre, KK Women's and Children's Hospital, Singapore, Singapore
| | | | | | - Woon-Puay Koh
- Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Singapore Institute for Clinical Sciences, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | - Jean-Paul Kovalik
- Duke-NUS Medical School, Singapore, Singapore
- Singapore General Hospital, Singapore, Singapore
| | - Angela S Koh
- National Heart Centre Singapore, 5 Hospital Drive, Singapore, 169609, Singapore.
- Duke-NUS Medical School, Singapore, Singapore.
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Kim M, Kim HL, Lim WH, Seo JB, Kim SH, Kim MA, Zo JH. Association between arterial stiffness and left ventricular diastolic function: A large population-based cross-sectional study. Front Cardiovasc Med 2022; 9:1001248. [PMID: 36312236 PMCID: PMC9606341 DOI: 10.3389/fcvm.2022.1001248] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 09/27/2022] [Indexed: 12/05/2022] Open
Abstract
Background The association between arterial stiffness and left ventricular (LV) diastolic function has been demonstrated in several studies, but the samples size in those studies was small. This study aims to verify this issue in a large number of study subjects. Methods A total of 7,013 consecutive participants (mean age 60.6 years and 43.3% female) who underwent both baPWV and transthoracic echocardiography were retrospectively analyzed. Subjects with significant cardiac structural abnormalities were excluded. Results There were significant correlations of baPWV with septal e′ velocity (r = – 0.408; P < 0.001), septal E/e′ (r = 0.349; P < 0.001), left atrial volume index (LAVI) (r = 0.122; P < 0.001) and maximal velocity of tricuspid valve regurgitation (TR Vmax) (r = 0.322; P < 0.001). The baPWV values increased proportionally with an increase in the number of LV diastolic indices meeting LV diastolic dysfunction criteria (P-for-trend < 0.001). In multivariable analyses with adjustment for confounding effects of various clinical covariates, higher baPWV was independently associated with septal e′ < 7 (odds ratio [OR], 1.30; 95% confidence interval [CI] 1.20–1.60; P < 0.001), septal E/e′ ≥ 15 (OR, 1.46; 95% CI, 1.21–1.78; P < 0.001), and TR Vmax > 2.8 m/s (OR, 1.60; 95% CI, 1.23–2.09; P < 0.001) but not with LAVI ≥ 34 mL/m2 (OR, 0.89; 95% CI, 0.76–1.03; P = 0.123). Conclusions Increased arterial stiffness, as measured by baPWV, was associated with abnormal diastolic function parameters in a large number of study participants, providing strong evidence to the existing data about ventricular-vascular coupling.
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Affiliation(s)
- Minkwan Kim
- Division of Cardiology, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin-si, South Korea
| | - Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea,*Correspondence: Hack-Lyoung Kim
| | - Woo-Hyun Lim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Jae-Bin Seo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Sang-Hyun Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Myung-A Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Joo-Hee Zo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea,Joo-Hee Zo
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Lu Y, Zhu Y, Ma Y, Li C, Hua R, Zhong B, Wang H, Xie W. Association of subclinical atherosclerosis and cognitive decline: a community-based cross-sectional study. BMJ Open 2022; 12:e059024. [PMID: 35613754 PMCID: PMC9125759 DOI: 10.1136/bmjopen-2021-059024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND AND AIMS Growing burden of dementia was considered as a global public health priority as its epidemic scale rises with the world's population increases in age. In the absence of effective treatment, early identification of decline in cognitive function and risk factors that lead to the onset of dementia is a critical issue. Subclinical atherosclerosis may be a potential risk factor for cognitive impairment and progression to dementia. Research is needed to identify which subclinical atherosclerosis risk factors can better predict cognitive decline. METHODS A total of 1554 participants (mean age 59.81±6.93 years) were enrolled from Beijing Research on Ageing and Vessel and underwent baseline evaluation. Carotid intima-media thickness, carotid plaque and brachial ankle pulse wave velocity (ba-PWV) were selected as subclinical atherosclerosis markers. Cognitive function assessment was conducted by standardised tasks to assess the associations with subclinical atherosclerosis markers. RESULTS Significant associations (p<0.001) were shown in the unadjusted models between all three subclinical atherosclerosis markers and cognitive function assessments. After adjusting for covariates, in the assessment of the association between carotid atherosclerosis and cognitive function, plaque numbers showed significant associations in Montreal Cognitive Assessment (MoCA) (β=-0.15, p=0.006) and verbal memory scores (β=-0.13, p=0.013). While in the assessment of the association between arterial stiffness and cognitive function, ba-PWV showed significant associations in MoCA (β=-0.09, p=0.009) and semantic fluency scores (β=-0.13, p=0.036). CONCLUSIONS Positive associations shown between subclinical atherosclerosis and cognitive function. Subclinical atherosclerosis markers of plaque numbers were significantly associated with global cognitive functioning in MoCA, memory and semantic fluency, while ba-PWV was significantly associated with global cognitive functioning in MoCA and semantic fluency.
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Affiliation(s)
- Yao Lu
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- PUCRI Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | - Yidan Zhu
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- PUCRI Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | - Yanjun Ma
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- PUCRI Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | - Chenglong Li
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- PUCRI Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | - Rong Hua
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- PUCRI Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
| | - Baoliang Zhong
- Department of Geriatric Psychiatry, Affiliated Wuhan Mental Health Center, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Hongyu Wang
- PUCRI Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
- Vascular Medicine Center, Peking University Shougang Hospital, Beijing, China
| | - Wuxiang Xie
- Peking University Clinical Research Institute, Peking University First Hospital, Beijing, China
- PUCRI Heart and Vascular Health Research Center at Peking University Shougang Hospital, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing, China
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Kim DS, Kim BS, Cho H, Shin JH, Shin YU. Associations between Choriocapillaris Flow on Optical Coherence Tomography Angiography and Cardiovascular Risk Profiles of Patients with Acute Myocardial Infarction. J Pers Med 2022; 12:jpm12050839. [PMID: 35629261 PMCID: PMC9147039 DOI: 10.3390/jpm12050839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/15/2022] [Accepted: 05/18/2022] [Indexed: 12/10/2022] Open
Abstract
We evaluated the association between macular perfusion assessed via optical coherence tomography angiography (OCTA) and the cardiovascular risk profiles of patients with acute myocardial infarction (AMI). Patients with AMI who underwent comprehensive ophthalmological examinations and retinal OCTA were evaluated retrospectively. Retinal OCTA was performed for each patient within 3 days of admission. Quantitative analyses of the vessel density (VD) of the superficial capillary plexus (SCP) layers, deep capillary plexus layers (DCP), and choriocapillaris were performed after image processing. The 10-year risk of atherosclerotic cardiovascular disease (ASCVD), Global Registry of Acute Coronary Events (GRACE) score, reduction of atherothrombosis for continued health (REACH) score, and thrombolysis in myocardial infarction (TIMI) risk score were assessed. Sixty patients were included. VD in SCP and DCP was not associated with a 10-year ASCVD risk; however, choriocapillaris flow void features were significantly correlated with the 10-year ASCVD risk: decreased count, increased average size, and increased signal void area were correlated with increased 10-year ASCVD risk, GRACE score, REACH score, and TIMI risk score. In the multivariate analysis, a 10-year ASCVD risk (adjusted odds ratio [OR], 1.04; 95% confidence interval [CI], 1.01–1.08) and brain natriuretic peptide (adjusted OR, 1.00; 95% CI, 1.00–1.01) were significantly associated with the highest tertile of the average size of the choriocapillaris. Choriocapillaris flow void features measured using OCTA were associated with cardiovascular risk profiles in patients with AMI. OCTA may be used as an indicator of cardiovascular risk profiles and could improve cardiovascular risk assessments.
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Affiliation(s)
- Dae Sung Kim
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri-si 11923, Korea; (D.S.K.); (H.C.)
| | - Byung Sik Kim
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri-si 11923, Korea;
| | - Heeyoon Cho
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri-si 11923, Korea; (D.S.K.); (H.C.)
| | - Jeong-Hun Shin
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri-si 11923, Korea;
- Correspondence: (J.-H.S.); (Y.U.S.); Tel.: +82-31-560-2216 (J.-H.S.); +82-31-560-2168 (Y.U.S.)
| | - Yong Un Shin
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri-si 11923, Korea; (D.S.K.); (H.C.)
- Correspondence: (J.-H.S.); (Y.U.S.); Tel.: +82-31-560-2216 (J.-H.S.); +82-31-560-2168 (Y.U.S.)
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Kim HM, Rhee TM, Kim HL. Integrated approach of brachial-ankle pulse wave velocity and cardiovascular risk scores for predicting the risk of cardiovascular events. PLoS One 2022; 17:e0267614. [PMID: 35476644 PMCID: PMC9045657 DOI: 10.1371/journal.pone.0267614] [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: 02/08/2022] [Accepted: 04/11/2022] [Indexed: 12/03/2022] Open
Abstract
Background The 2013 American College of Cardiology (ACC)/American Heart Association (AHA) atherosclerotic cardiovascular disease (ASCVD) risk score may be insufficient for accurate prediction of major adverse cardiac events (MACE) in Asians. This study was performed to investigate whether brachial-ankle pulse wave velocity (baPWV) has additional prognostic value to the risk score estimated by the ACC/AHA pooled cohort equations (PCEs). Methods A total of 6,359 patients (3,534 men and 2,825 women) aged 40–79 years without documented cardiovascular disease who underwent baPWV measurement were retrospectively analyzed. Cardiovascular risk scores were calculated using the 2013 ACC/AHA PCEs. Cardiovascular events, including cardiac death, non-fatal myocardial infarction, coronary revascularization and ischemic stroke, were assessed. Results During a median follow-up period of 4.0 years (interquartile range 1.7–6.1 years), cardiovascular events occurred in 129 patients (2.0%). The receiver operating characteristic curve analysis showed that baPWV was stronger in the detection of cardiovascular events than the 2013 ACC/AHA risk score (area under the curve: 0.70 versus 0.62, p<0.001). In the multivariable Cox regression analysis, both baPWV and 2013 ACC/AHA risk score were independently associated with the occurrence of clinical events (p <0.001 for each). The baPWV had incremental prognostic value to the 2013 ACC/AHA risk score in predicting clinical events (global chi-square from 21.23 to 49.51, p<0.001). Conclusion The baPWV appears to be a strong predictor of the risk of cardiovascular events in Koreans. Measuring baPWV in addition to the 2013 ACC/AHA risk score helps identify individuals at risk for MACE aged 40–79 years without previous cardiovascular diseases.
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Affiliation(s)
- Hyue Mee Kim
- Division of Cardiology, Department of Internal Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Tae-Min Rhee
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
- * E-mail:
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Duan Q, Zhang D, Dong Q, Liao K, Yang Y, Ye L, Ge P, Qin S. Impact of Brachial-Ankle Pulse Wave Velocity on Myocardial Work by Non-invasive Left Ventricular Pressure-Strain in Non-hypertensive and Hypertensive Patients With Preserved Left Ventricular Ejection Fraction. Front Cardiovasc Med 2022; 9:814326. [PMID: 35224047 PMCID: PMC8866308 DOI: 10.3389/fcvm.2022.814326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/12/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Data regarding the influence of arterial stiffness on myocardial work (MW) has been scarce. This study was performed to investigate the association between brachial-ankle pulse wave velocity (baPWV) and MW by non-invasive left ventricular pressure–strain in a population of non-hypertensive and hypertensive individuals. Methods Two hundred and eight participants (104 hypertensive and 104 non-hypertensive individuals) were prospectively enrolled into the study. All participants underwent conventional echocardiography, as well as 2D speckle-tracking echocardiography to assess MW by non-invasive left ventricular pressure–strain and global longitudinal strain (GLS). baPWV measurements were made at the same day as the echocardiography. Then, participants were categorized according to baPWV tertiles. Correlation between baPWV and MW were analyzed. Predicting ability of baPWV for abnormal WM was analyzed using receiver operating characteristic (ROC) curve. Results The median baPWV from the low to high tertile groups were 1286.5 (1197.5–1343.5), 1490.0 (1444.5–1544.0), and 1803.8(1708.3–1972.0) cm/s, respectively. In simple linear regression analysis, baPWV had a significant positive association with global work index (GWI), global constructed work (GCW), and global wasted work (GWW), and a negative association with global work efficiency (GWE). The association remained significant after adjusting for major confounding factors in multiple linear regression analysis. The areas under the ROC curve of baPWV for predicting abnormal GWI, GCW, GWW, and GWE were 0.653, 0.666, 0.725, and 0.688, respectively (all p < 0.05). Conclusions BaPWV is significantly associated with all four components of MW using non-invasive left ventricular pressure-strain method in a mixed population of non-hypertensive and hypertensive individuals.
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Affiliation(s)
- Qin Duan
- Department of Cardiology, The First Branch, The First Affiliated Hospital of Chongqing Medical University, Chognqing, China
| | - Dongying Zhang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qian Dong
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kangla Liao
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yunjin Yang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Liu Ye
- Department of Cardiology, The First Branch, The First Affiliated Hospital of Chongqing Medical University, Chognqing, China
| | - Ping Ge
- Department of Cardiology, The First Branch, The First Affiliated Hospital of Chongqing Medical University, Chognqing, China
- *Correspondence: Ping Ge
| | - Shu Qin
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Shu Qin
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Kwak S, Kim HL, Lim WH, Seo JB, Kim SH, Zo JH, Kim MA. Sex-specific associations of brachial-ankle pulse wave velocity with adverse cardiac remodeling and long-term cardiovascular outcome. J Hypertens 2022; 40:364-373. [PMID: 34611109 DOI: 10.1097/hjh.0000000000003021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND It remains unclear whether the cardiovascular consequences of arterial stiffness differ by sex. This study aimed to investigate the sex-specific association of brachial-ankle pulse wave velocity (baPWV) with adverse cardiac remodeling and cardiovascular outcome. METHOD We studied 11 767 patients (57.6% men) with cardiovascular risk factors, whose baPWV was measured. The primary endpoint was composite cardiovascular events. Restricted cubic spline (RCS) analyses were performed to delineate the association of baPWV with echocardiography parameters and risks of cardiovascular events. RESULTS RCS curves showed that structural/functional echocardiography parameters gradually worsened with increasing baPWV more prominently in women than in men. The prevalence of left ventricular hypertrophy and diastolic dysfunction increases with baPWV increase more steeply in women (P-for-interaction by sex <0.001). During the median follow-up of 3.64 years (interquartile interval, 1.56-5.38 years), 350 cardiovascular events (3.0%) and 155 deaths (1.3%) occurred. Cumulative cardiovascular events and deaths were significantly higher in patients with elevated baPWV in both sexes (P < 0.001). Cox analyses showed that the increase in baPWV was associated with the higher risks of cardiovascular events and deaths more strongly in women [cardiovascular events: men, adjusted hazard ratio 1.10, 95% confidence interval (1.08-1.13), P < 0.001; women, adjusted hazard ratio 1.18, 95% confidence interval (1.13-1.24), P < 0.001 by 100 cm/s increase in baPWV; P-for-interaction by sex = 0.022]. CONCLUSION The detrimental effects of baPWV on adverse cardiac remodeling and cardiovascular outcome were stronger in women than in men. The prognostic information provided by baPWV may be particularly crucial for women.
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Affiliation(s)
- Soongu Kwak
- Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Boramae Medical Center, Seoul, South Korea
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Huang M, Li J, Zhao X, Chen S, Li X, Jiang W. Relationship between vascular ageing and left ventricular geometry in patients with newly diagnosed primary aldosteronism. Front Endocrinol (Lausanne) 2022; 13:961882. [PMID: 36004338 PMCID: PMC9393336 DOI: 10.3389/fendo.2022.961882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/18/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Changes in left ventricular (LV) geometry are early manifestations of cardiac damage. The relationship between vascular aging and LV geometry has been reported. However, in newly diagnosed primary aldosteronism (PA), with more severe target organ damage than essential hypertension, the relationship between vascular aging and LV geometry has never been described. METHODS We conducted a retrospective study among newly diagnosed PA from 1 January 2017 to 30 September 2021 at the Third Xiangya Hospital. The data of vascular aging parameters were collected, including ankle-brachial index (ABI), brachial-ankle pulse wave velocity (baPWV), and carotid intima-media thickness (cIMT). Echocardiography data were collected to assess LV geometry patterns. RESULTS A total of 146 patients with newly diagnosed PA were included. The mean age was 44.77 ± 9.79 years, and 46.58% participants were women. Linear regression analysis adjusting all potential confounders showed that cIMT was significantly associated with LV mass index (LVMI) (β=0.164, P=0.028) and baPWV was significantly associated with relative wall thickness (RWT) (β= 0.00005, P=0.025). Multifactorial adjusted logistic regression analysis demonstrated that cIMT was significantly associated with LV hypertrophy (LVH) (OR=7.421, 95%CI: 1.717-815.688, P=0.021) and baPWV was significantly associated with LV concentric geometry (LVCG) (OR=1.003, 95%CI: 1.001-1.006, P=0.017). CONCLUSION baPWV was significantly associated with LVCG and cIMT was significantly associated with LVH in newly diagnosed PA. This study provides insights on the importance of baPWV measurement and cIMT measurement in early assessment of cardiac damage in newly diagnosed PA.
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Affiliation(s)
| | | | | | | | - Xiaogang Li
- *Correspondence: Xiaogang Li, ; Weihong Jiang,
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Lyu M, Lee Y, Kim BS, Kim HJ, Hong R, Shin YU, Cho H, Shin JH. Clinical significance of subclinical atherosclerosis in retinal vein occlusion. Sci Rep 2021; 11:11905. [PMID: 34099806 PMCID: PMC8184809 DOI: 10.1038/s41598-021-91401-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/26/2021] [Indexed: 11/17/2022] Open
Abstract
Retinal vein occlusion (RVO) is associated with atherosclerotic cardiovascular risk factors; however, its association with the specific markers of subclinical atherosclerosis has not yet been established. To investigate this association, we compared 70 patients with RVO to 70 age- and sex-matched patients without RVO. Low-density lipoprotein cholesterol (LDL-C) levels and brachial-ankle pulse wave velocity (baPWV) were significantly higher in the RVO group than in the control group. Carotid plaques (54.3% vs. 28.6%, p = 0.004) were more frequent in the RVO group. Multivariate logistic regression analysis showed that the presence of carotid plaques (odds ratio [OR]: 3.15, 95% confidence interval [CI] 1.38–7.16, p = 0.006), as well as smoking, LDL-C level, and baPWV were associated with RVO. Additionally, a multinomial logistic regression model showed that the presence of carotid plaques (OR: 3.94, 95% CI 1.65–9.41, p = 0.002) and LDL-C level were associated with branch RVO, whereas smoking and baPWV were associated with central RVO. In conclusion, RVO was associated with subclinical atherosclerosis markers, including carotid plaques and baPWV. These results support the hypothesis that atherosclerosis contributes to the etiology of RVO and suggest the evaluation of subclinical atherosclerosis in patients with RVO.
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Affiliation(s)
- Minhyung Lyu
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 11923, Republic of Korea
| | - Yonggu Lee
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 11923, Republic of Korea
| | - Byung Sik Kim
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 11923, Republic of Korea
| | - Hyun-Jin Kim
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 11923, Republic of Korea
| | - Rimkyung Hong
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 11923, Republic of Korea
| | - Yong Un Shin
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 11923, Republic of Korea.
| | - Heeyoon Cho
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 11923, Republic of Korea
| | - Jeong-Hun Shin
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, 153 Gyeongchun-ro, Guri, Gyeonggi-do, 11923, Republic of Korea.
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11
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Kwak S, Kim HL, In M, Lim WH, Seo JB, Kim SH, Zo JH, Kim MA. Associations of Brachial-Ankle Pulse Wave Velocity With Left Ventricular Geometry and Diastolic Function in Untreated Hypertensive Patients. Front Cardiovasc Med 2021; 8:647491. [PMID: 34041281 PMCID: PMC8143267 DOI: 10.3389/fcvm.2021.647491] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/13/2021] [Indexed: 11/23/2022] Open
Abstract
Background: Although brachial-ankle pulse wave velocity (baPWV) is simple and convenient, its usefulness as an initial screening test for hypertensive patients is not well-known. This study aimed to investigate the association of baPWV with left ventricular (LV) geometry and diastolic function in treatment-naive hypertensive patients. Methods: A total of 202 untreated hypertensive patients (mean age, 62 years; males, 51.5%) without documented cardiovascular diseases were prospectively enrolled. Both baPWV and transthoracic echocardiography were performed on the same day before antihypertensive treatment. Results: In multiple linear regression analysis after adjustment for potential confounders, baPWV had significant correlations with structural measurements of LV including relative wall thickness (β = 0.219, P = 0.021) and LV mass index (β = 0.286, P = 0.002), and four diastolic parameters including septal e′ velocity (β = −0.199, P = 0.018), E/e′ (β = 0.373, P < 0.001), left atrial volume index (β = 0.334, P < 0.001), and maximal velocity of tricuspid regurgitation (β = 0.401, P < 0.001). The baPWV was significantly increased in patients with LV hypertrophy, abnormal LV remodeling, or diastolic dysfunction, compared to those without (P = 0.008, P = 0.035, and P < 0.001, respectively). In the receiver operating characteristic curve analysis, the discriminant ability of baPWV in predicting LV hypertrophy and diastolic dysfunction had an area under the curve of 0.646 (95% confidence interval 0.544–0.703, P = 0.004) and 0.734 (95% confidence interval 0.648–0.800, P < 0.001), respectively. Conclusion: baPWV was associated with parameters of LV remodeling and diastolic function in untreated hypertensive patients. The baPWV could be a useful screening tool for the early detection of adverse cardiac features among untreated hypertensive patients.
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Affiliation(s)
- Soongu Kwak
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Minjae In
- Seoul National University College of Medicine, Seoul, South Korea
| | - Woo-Hyun Lim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Jae-Bin Seo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Sang-Hyun Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Joo-Hee Zo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
| | - Myung-A Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea
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12
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Impact of Pulse Wave Velocity and Parameters Reflecting Android Type Fat Distribution on Left Ventricular Diastolic Dysfunction in Patients with Chronic Coronary Syndromes. J Clin Med 2020; 9:jcm9123924. [PMID: 33287316 PMCID: PMC7761650 DOI: 10.3390/jcm9123924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 01/12/2023] Open
Abstract
Background: Left ventricular diastolic dysfunction (LVDD) is caused by a decreased left ventricle relaxation and is associated with an increased risk of symptomatic heart failure (HF) and excessive mortality. Aim: To evaluate the frequency and factors related to LVDD in the population with chronic coronary syndromes (CCS). Methods: 200 patients (mean age 63.18 ± 8.12 years, 75.5% male) with CCS were included. LVDD was diagnosed based on the recent echocardiography guidelines. Results: LVDD was diagnosed in 38.5% of CCS population. From the studied factors, after adjustment for age, sex, and N-terminal pro-brain natriuretic peptide (NT-proBNP), LVDD associated positively with android/gynoid (A/G) fat mass ratio, left ventricular mass index (LVMI), and negatively with Z-score and left ventricular ejection fraction (LVEF). In stepwise backward logistic regression analysis, the strongest factors associated with LVDD were pulse wave velocity value, handgrip strength and waist to hip ratio (WHR). Conclusions: LVDD is common among CCS patients and it is associated with parameters reflecting android type fat distribution regardless of NT-proBNP and high-sensitivity troponin T concentrations. Deterioration in diastolic dysfunction is linked with increased aortic stiffness independently of age and sex. Further studies evaluating the effects of increasing physical fitness and lowering abdominal fat accumulations on LVDD in CCS patients should be considered.
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13
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Ott MV, Sumin AN, Kovalenko AV. [Possibilities of application of cardio-ankle vascular index in patients with cerebrovascular diseases]. Zh Nevrol Psikhiatr Im S S Korsakova 2020; 120:37-44. [PMID: 33016675 DOI: 10.17116/jnevro202012008237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This publication focuses on the feasibility of using the cardio-ankle vascular index (CAVI) in patients with cerebrovascular diseases. The authors consider the pathological conditions and risk factors of stroke associated with increased arterial stiffness, methods for its assessment, the advantages of using CAVI, the experience of using CAVI in patients with cardiovascular diseases, in particular, in neurological patients. The complexity of the application of CAVI in the Russian population, promising directions for determining the index in neurology as well as the importance of CAVI borderline indicators are shown. It is emphasized that stroke patients should be screened with a mandatory study of CAVI.
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Affiliation(s)
- M V Ott
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - A N Sumin
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - A V Kovalenko
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia.,Kemerovo State Medical University, Kemerovo, Russia
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14
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Kim HJ, Shin YU, Lee Y, Kang MH, Seong M, Cho H, Heo R, Park JK, Lim YH, Shin JH. Increasing incidence of macular edema in excessive morning blood pressure surge in patients with retinal vein occlusion. Sci Rep 2020; 10:4420. [PMID: 32157149 PMCID: PMC7064582 DOI: 10.1038/s41598-020-61386-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 02/26/2020] [Indexed: 01/24/2023] Open
Abstract
Morning blood pressure surge (MBPS) had been known to be associated with hypertensive target organ injury and vascular events. Retinal vein occlusion (RVO) is also known to be related with underlying cardiovascular risk factors. This study investigated the effect of MBPS on patients with RVO. In total, 76 patients with RVO who had undergone systemic cardiovascular examination including a 24-hour ambulatory blood pressure monitoring, carotid artery intima media thickness, and pulse wave velocity were evaluated between January 2015 and February 2019. The MBPS was calculated as follows: mean systolic blood pressure measured over two hours after awakening minus mean systolic blood pressure measured during the one hour that included the lowest sleep blood pressure. Macular edema was significantly more prevalent in the MBPS group compared with the non-MBPS group. After adjusting for confounding factors, multivariate regression analyses revealed that MBPS independently predicted macular edema in patients with RVO [Odds ratio 4.75, 95% confidence interval 1.136–16.6, p = 0.015]. In conclusion, evaluating blood pressure patterns, especially MBPS, using 24-hour ambulatory blood pressure monitoring may be useful for assessing and predicting ophthalmologic outcome and may facilitate better blood pressure control in patients with RVO.
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Affiliation(s)
- Hyun-Jin Kim
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Yong Un Shin
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Yonggu Lee
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea.,Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Min Ho Kang
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Mincheol Seong
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea
| | - Heeyoon Cho
- Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea.
| | - Ran Heo
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Jin-Kyu Park
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Young-Hyo Lim
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Jeong-Hun Shin
- Division of Cardiology, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Republic of Korea. .,Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea.
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15
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Seko Y, Kato T, Shiba M, Morita Y, Yamaji Y, Haruna Y, Nakane E, Hayashi H, Haruna T, Inoko M. Association of the low e' and high E/e' with long-term outcomes in patients with normal ejection fraction: a hospital population-based observational cohort study. BMJ Open 2019; 9:e032663. [PMID: 31753896 PMCID: PMC6887062 DOI: 10.1136/bmjopen-2019-032663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVE We aimed to evaluate the association of the severity of left ventricular (LV) diastolic dysfunction with long-term outcomes in patients with normal ejection fraction. DESIGN Retrospective study. SETTING A single centre in Japan. PARTICIPANTS We included 3576 patients who underwent both scheduled transthoracic echocardiography and ECG between 1 January and 31 December 2013, in a hospital-based population after excluding valvular diseases or low ejection fraction (<50%) or atrial fibrillation and categorised them into three groups: septal tissue Doppler early diastolic mitral annular velocity (e')≥7 (without relaxation disorder, n=1593), e'<7 and early mitral inflow velocity (E)/e'≤14 (with relaxation disorder and normal LV end-diastolic pressure, n=1337) and e'<7 and E/e'>14 (with relaxation disorder and high LV end-diastolic pressure, n=646). PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome measure was a composite of all-cause death and major adverse cardiac events (MACE). The secondary outcome measure were all-cause death and MACE, separately. RESULTS The cumulative 3-year incidences of the primary outcome measures were significantly higher in the e'<7 and E/e'≤14 (19.0%) and e'<7 and E/e'>14 group (23.4%) than those for the e'≥7 group (13.0%; p<0.001). After adjusting for confounders, the excess 3-year risk of primary outcome for the groups with e'<7 and E/e'≤14 related to e'≥7 (HR: 1.24; 95% CI 1.02 to 1.52) and e'<7 and E/e'>14 related to e'<7 (HR: 1.57; 95% CI 1.28 to 1.94) were significant. The severity of diastolic dysfunction was associated with incrementally higher risk for primary outcomes (p<0.001). CONCLUSION The severity of LV diastolic dysfunction using e'<7 and E/e'>14 was associated with the long-term prognosis in patients with normal ejection fraction in an incremental fashion.
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Affiliation(s)
- Yuta Seko
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine Faculty of Medicine, Kyoto, Japan
| | - Takao Kato
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine Faculty of Medicine, Kyoto, Japan
| | - Masayuki Shiba
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine Faculty of Medicine, Kyoto, Japan
| | - Yusuke Morita
- Cardiovascular Center, Kitano Hospital, Osaka, Japan
| | - Yuhei Yamaji
- Cardiovascular Center, Kitano Hospital, Osaka, Japan
| | | | - Eisaku Nakane
- Cardiovascular Center, Kitano Hospital, Osaka, Japan
| | | | | | - Moriaki Inoko
- Cardiovascular Center, Kitano Hospital, Osaka, Japan
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16
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Kim HL, Lim WH, Seo JB, Kim SH, Zo ZH, Kim MA. The comparison of the impact of arterial stiffness and central pressure on left ventricular geometry and diastolic function. Clin Hypertens 2019; 25:18. [PMID: 31497312 PMCID: PMC6717628 DOI: 10.1186/s40885-019-0125-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/12/2019] [Indexed: 11/10/2022] Open
Abstract
Background This study was performed to compare the associations of brachial-ankle pulse wave velocity (baPWV) and central blood pressure (CBP) measurements with left ventricular (LV) geometry and diastolic function. Methods A total of 77 subjects (64.5 ± 10.8 years, 67.5% females) without documented cardiovascular disease were prospectively recruited. All subjects underwent transthoracic echocardiography, baPWV and noninvasive measurement of CBP on the same day. Results In simple linear correlation analyses, neither baPWV nor CBP was associated with LV mass index or relative wall thickness (P > 0.05 for each). Although baPWV significantly correlated with septal e´ velocity in simple linear correlation analyses (r = 0.258, P = 0.025), the significance was lost after controlling for potential confounder (P = 0.881). In simple linear correlation analyses, central systolic blood pressure (CSBP) and central pulse pressure (CPP) significantly correlated with both septal e´ velocity or E/e´ (P < 0.05 for each); however, neither central diastolic nor mean arterial pressures was associated with both septal e´ velocity and E/e´ (P > 0.05 for each). After controlling for confounders, including age, sex and body mass index, CSBP correlated with septal e´ velocity (β = − 0.258, P = 0.025), but not with E/e´ (P = 0.074). CPP correlated with both septal e´ velocity (β = − 0.300, P = 0.014) and E/e´ (β = 0.428, P = 0.002) in the same multivariable model. Conclusions In subjects without documented cardiovascular disease, CSBP and CPP may be more strongly associated with LV diastolic function than baPWV. Further studies with a larger sample size are needed to confirm our results.
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Affiliation(s)
- Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Boramae Medical Center, 5 Boramae-ro, Dongjak-gu, Seoul, 07061 South Korea
| | - Woo-Hyun Lim
- Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Boramae Medical Center, 5 Boramae-ro, Dongjak-gu, Seoul, 07061 South Korea
| | - Jae-Bin Seo
- Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Boramae Medical Center, 5 Boramae-ro, Dongjak-gu, Seoul, 07061 South Korea
| | - Sang-Hyun Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Boramae Medical Center, 5 Boramae-ro, Dongjak-gu, Seoul, 07061 South Korea
| | - Zoo-Hee Zo
- Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Boramae Medical Center, 5 Boramae-ro, Dongjak-gu, Seoul, 07061 South Korea
| | - Myung-A Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University College of Medicine, Boramae Medical Center, 5 Boramae-ro, Dongjak-gu, Seoul, 07061 South Korea
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17
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Rhee TM, Kim HL, Oh S, Lim WH, Seo JB, Chung WY, Kim SH, Kim MA, Zo JH. Gender difference in the association between brachial-ankle pulse wave velocity and cardiovascular risk scores. Korean J Intern Med 2019; 34. [PMID: 29540053 PMCID: PMC6506726 DOI: 10.3904/kjim.2017.357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND/AIMS Although brachial-ankle pulse wave velocity (baPWV) has been validated as a novel method to predict the cardiovascular risk in general population, the relevance of baPWV to the traditional risk scores has not been clearly revealed. This study investigated the relationship between baPWV and four different cardiovascular risk-predicting scores in men and women. METHODS A total of 539 subjects (58.1 ± 12.2 years, 50.1% men) without cardiovascular disease (CVD) who underwent health examinations including baPWV measurement were retrospectively analyzed. Four cardiovascular risk scores (Framingham risk score [FRS; 1998], Adult Treatment Panel [ATP] III revised FRS [2002], generalized FRS [2008], and American College of Cardiology/American Heart Association [ACC/AHA] CVD risk [2013]) were calculated in each subject. RESULTS In a total population, baPWV was moderately correlated with four cardiovascular risk scores (r = 0.577 for FRS; r = 0.594 for ATP III revised FRS; r = 0.589 for generalized FRS; r = 0.571 for ACC/AHA CVD risk; p < 0.001 for each). These correlations were stronger in women than in men (r = 0.649 vs. 0.451 for FRS; r = 0.719 vs. 0.411 for ATP III revised FRS; r = 0.735 vs. 0.540 for generalized FRS; r = 0.699 vs. 0.552 for ACC/AHA CVD risk; p for gender difference ≤ 0.005 for each). CONCLUSION In middle-aged and elderly Koreans without CVD, baPWV was identified as having a moderately positive correlation with four different risk scores. The correlation was stronger in women than in men, implying the better performance of baPWV in women for predicting cardiovascular risk of healthy population.
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Affiliation(s)
- Tae-Min Rhee
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hack-Lyoung Kim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sohee Oh
- Department of Biostatistics, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - Woo-Hyun Lim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jae-Bin Seo
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Woo-Young Chung
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Hyun Kim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Myung-A Kim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Joo-Hee Zo
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Correspondence to Joo-Hee Zo, M.D. Division of Cardiology, Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul 07061, Korea Tel: +82-2-870-2114 Fax: +82-2-870-3866 E-mail:
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18
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Ki YJ, Kim HL, Oh S, Jeon WK, Rhee TM, Lim WH, Seo JB, Kim SH, Kim MA, Zo JH. Gender Related Association between Arterial Stiffness and Aortic Root Geometry. J Cardiovasc Imaging 2019; 27:11-21. [PMID: 30701711 PMCID: PMC6358431 DOI: 10.4250/jcvi.2019.27.e3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/22/2018] [Accepted: 12/03/2018] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The gender-related change in aortic morphology by arterial stiffness has not been well studied. This study was performed to investigate the association between brachial-ankle pulse wave velocity (baPWV) and aortic root size according to gender. METHODS A total of 263 consecutive subjects (63.2 ± 10.6 years, 71.1% men) without overt cardiovascular disease who underwent both baPWV measurement and transthoracic echocardiography on the same day were retrospectively analyzed. The diameters of the aortic annulus (AN), sinus of Valsalva (SV), sinotubular junction (STJ), and ascending aorta (AA) were measured using 2-dimensional echocardiography. RESULTS The body surface area (BSA)-corrected diameters of AN, SV, STJ, and AA were significantly higher in women than in men. Univariable analyses showed that baPWV was significantly correlated with SV/BSA and STJ/BSA in men, and with SV/BSA, STJ/BSA, and AA/BSA in women (p < 0.05 for each). In men, however, these associations disappeared in multiple linear regression models after controlling for potential confounders (p > 0.05 for each). In women, the associations of baPWV with diameters of STJ/BSA (β = 0.407, p < 0.001) and AA/BSA (β = 0.391, p = 0.005) remained significant in the same multivariate models. Women-specific correlation between aortic root size and baPWV was also similarly demonstrated in age-matched analyses (n = 61 in each gender). CONCLUSIONS Among Korean adult without overt cardiovascular disease, the association between increased arterial stiffness and aortic root dilatation is stronger in women than in men.
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Affiliation(s)
- You Jeong Ki
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Hack Lyoung Kim
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Sohee Oh
- Department of Biostatistics, Boramae Medical Center, Seoul, Korea
| | - Won Kyeong Jeon
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Tae Min Rhee
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Woo Hyun Lim
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Jae Bin Seo
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Hyun Kim
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Myung A Kim
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Joo Hee Zo
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
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Data on the clinical usefulness of brachial-ankle pulse wave velocity in patients with suspected coronary artery disease. Data Brief 2018; 16:1078-1082. [PMID: 29349102 PMCID: PMC5767841 DOI: 10.1016/j.dib.2017.12.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 12/10/2017] [Accepted: 12/12/2017] [Indexed: 11/21/2022] Open
Abstract
Brachial-artery pulse wave velocity (baPWV) is a simple and reliable tool for measurement of arterial stiffness. Our previous studies suggested that baPWV is associated with the presence and severity of coronary artery disease (CAD) and the risk of cardiovascular events. In the present data article, we provided supplementary data supporting the independent prognostic value of arterial stiffness, assessed by baPWV, in patients with suspected CAD (Hwang et al., 2017) [1]. The data was obtained from 523 patients undergoing coronary CT angiography (CCTA), and baPWV was measured at the time of CCTA. Patients with vulnerable coronary plaque or obstructive CAD on CCTA had higher age, more cardiovascular risk factors, and higher baPWV values. Given the significant association between high baPWV and the presence of vulnerable plaque or obstructive CAD as shown in this data article, the prognostic value of baPWV was further assessed in subgroups divided according to the CCTA findings (vulnerable plaque or obstructive CAD). In each subgroup by CCTA findings, multivariable Cox proportional hazard model analysis showed that high baPWV was an independent risk factor for cardiovascular events even after adjusting for clinical risk factors.
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Kang J, Kim HL, Lim WH, Seo JB, Zo JH, Kim MA, Kim SH. Relationship between brachial-ankle pulse wave velocity and invasively measured aortic pulse pressure. J Clin Hypertens (Greenwich) 2018; 20:462-468. [PMID: 29370481 DOI: 10.1111/jch.13200] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/11/2017] [Accepted: 10/20/2017] [Indexed: 01/02/2023]
Abstract
Although brachial-ankle pulse wave velocity (baPWV) has been widely used as an index of arterial stiffness, no consensus exists about whether baPWV can reflect central aortic stiffness. The authors investigated the association between baPWV and invasively measured aortic pulse pressure (APP) in a total of 109 consecutive patients (mean age, 62.3 ± 11.3 years; 67.9% men). Most patients (91%) had obstructive coronary artery disease, and mean baPWV and APP values were 1535 ± 303 cm/s and 66.8 ± 22.5 mm Hg, respectively. In univariate analysis, there was a significant linear correlation between baPWV and APP (r = .635, P < .001). The correlation between baPWV and APP remained significant even after controlling for potential confounders (β = 0.574, P < .001; R2 = .469). Arterial stiffness measured by baPWV showed a strong positive correlation with invasively measured APP, independent of clinical confounders. Therefore, baPWV can be a good marker of central aortic stiffness.
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Affiliation(s)
- Jeehoon Kang
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.,Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Woo-Hyun Lim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Jae-Bin Seo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Joo-Hee Zo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Myung-A Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Hyun Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
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Lee HJ, Kim HL, Chung J, Lim WH, Seo JB, Kim SH, Zo JH, Kim MA. Interaction of Metabolic Health and Obesity on Subclinical Target Organ Damage. Metab Syndr Relat Disord 2018; 16:46-53. [PMID: 29319402 DOI: 10.1089/met.2017.0078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Metabolically healthy obese (MHO) individuals generally show better cardiovascular prognosis compared with metabolically unhealthy counterparts, which may be related to different patterns of target organ damage (TOD). We aimed to investigate the patterns of TOD related to obesity and metabolic unhealthiness. METHODS A total of 659 Korean adults (mean age, 60.0 ± 11.8 years; male, 51.1%) undergoing health examinations were stratified into four groups according to obesity (body mass index ≥25.0 kg/m2) and metabolic healthiness (meeting ≤1 criteria of metabolic syndrome excluding abdominal circumference): metabolically healthy nonobese (MHNO), metabolically unhealthy nonobese (MUNO), MHO, and metabolically unhealthy obese (MUO). Four measures of TOD were evaluated: arterial stiffness, renal dysfunction, left ventricular (LV) diastolic dysfunction, and LV hypertrophy (LVH). RESULTS In multivariable analyses, compared with the MHNO group, the MHO group showed 2.31 times higher odds for LVH, whereas, the MUNO group showed 3.14 and 6.28 times higher odds for increased arterial stiffness and renal dysfunction, respectively. Metabolic unhealthiness was associated with increased arterial stiffness [odds ratio (OR) 2.73; confidence interval (95% CI) 1.72-4.34], renal dysfunction (OR 4.02; 95% CI 1.54-10.49), and LV diastolic dysfunction (OR 2.28; 95% CI 1.14-4.55). Meanwhile, obesity showed weaker association with LVH and LV diastolic dysfunction, and was not associated with increased arterial stiffness and renal dysfunction in multivariable analyses. CONCLUSIONS Metabolic unhealthiness shows more association with TOD than obesity, which may contribute to the higher risk of cardiometabolic abnormalities in MUNO compared with MHO.
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Affiliation(s)
- Hyun-Jung Lee
- 1 Department of Internal Medicine, Seoul National University Hospital , Seoul, Korea
| | - Hack-Lyoung Kim
- 2 Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine , Seoul, Korea
| | - Jaehoon Chung
- 3 Division of Cardiology, Department of Internal Medicine, National Medical Center , Seoul, Korea
| | - Woo-Hyun Lim
- 2 Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine , Seoul, Korea
| | - Jae-Bin Seo
- 2 Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine , Seoul, Korea
| | - Sang-Hyun Kim
- 2 Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine , Seoul, Korea
| | - Joo-Hee Zo
- 2 Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine , Seoul, Korea
| | - Myung-A Kim
- 2 Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine , Seoul, Korea
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22
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Jang K, Kim HL, Park M, Oh S, Oh SW, Lim WH, Seo JB, Kim SH, Zo JH, Kim MA. Additional Value of Brachial-Ankle Pulse Wave Velocity to Single-Photon Emission Computed Tomography in the Diagnosis of Coronary Artery Disease. J Atheroscler Thromb 2017; 24:1249-1257. [PMID: 28835579 PMCID: PMC5742370 DOI: 10.5551/jat.40071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Aim: The aim of this study was to investigate whether information on arterial stiffness can improve the value of single-photon emission computed tomography (SPECT) in the detection of obstructive coronary artery disease (CAD). Methods: A total of 233 patients (age: 62.2 ± 10.8 years, 60.3% males) with detected ischemia on SPECT undergoing invasive coronary angiography (ICA) and brachial-ankle pulse wave velocity (baPWV) measurement within a month was retrospectively reviewed. Results: Of the 233 patients, 190 (81.5%) had obstructive CAD (≥ 50% luminal stenosis). The difference in baPWV according to the presence of obstructive CAD was significant in patients in the mild ischemia group [summed stress score (SSS): 4–8] (1,770 ± 364 cm versus 1,490 ± 328 cm, p < 0.001) but not in the moderate (SSS: 9–13) or severe (SSS: ≥14) ischemia groups (p > 0.05 for each). Receiver operating characteristic curve analyses showed that the diagnostic value of baPWV for obstructive CAD was significant only in patients in the mild ischemia group (area under curve: 0.714; p = 0.001) but not in the moderate or severe ischemia groups (p > 0.05 for each). Adding information on baPWV to SPECT results and clinical parameters significantly increased diagnostic accuracy in the detection of obstructive CAD in patients with mild ischemia (integrated discrimination improvement p = 0.006) but not in those with moderate or severe ischemia on SPECT (p > 0.05 for each). Conclusions: The results of this study suggest that baPWV may have additional value to SPECT for the detection of obstructive CAD, especially in patients with mild ischemia on SPECT.
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Affiliation(s)
| | - Hack-Lyoung Kim
- Division of Cardiology, Boramae Medical Center, Seoul National University College of Medicine
| | - Miri Park
- Department of Nursing, Boramae Medical Center
| | - Sohee Oh
- Department of Biostatistics, Boramae Medical Center
| | - So Won Oh
- Department of Nuclear Medicine, Boramae Medical Center, Seoul National University College of Medicine
| | - Woo-Hyun Lim
- Division of Cardiology, Boramae Medical Center, Seoul National University College of Medicine
| | - Jae-Bin Seo
- Division of Cardiology, Boramae Medical Center, Seoul National University College of Medicine
| | - Sang-Hyun Kim
- Division of Cardiology, Boramae Medical Center, Seoul National University College of Medicine
| | - Joo-Hee Zo
- Division of Cardiology, Boramae Medical Center, Seoul National University College of Medicine
| | - Myung-A Kim
- Division of Cardiology, Boramae Medical Center, Seoul National University College of Medicine
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23
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Kim HL, Lee JP, An JN, Kim JH, Lim WH, Seo JB, Chung WY, Oh YK, Kim YS, Lim CS, Zo JH, Kim MA, Kim SH. Soluble Tumor Necrosis Factor Receptors and Arterial Stiffness in Patients With Coronary Atherosclerosis. Am J Hypertens 2017; 30:313-318. [PMID: 27927628 DOI: 10.1093/ajh/hpw134] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 10/07/2016] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Soluble forms of tumor necrosis factor receptors (sTNFRs) are emerging target molecules of inflammatory disease. However, their role in vascular biology is not well known. This study was performed to investigate the association between serum concentrations of sTNFRs and arterial stiffness. METHODS A total of 117 consecutive patients with suspected coronary artery disease (CAD) (63.6 ± 11.0 years; men, 65%) who were referred for invasive coronary angiography (ICA) were prospectively enrolled. Arterial blood sTNFR1 and sTNFR2 were measured using commercially available ELISA kits. Brachial-ankle pulse wave velocity (baPWV) measurements were made within 24 hours of blood sampling for sTNFRs measurement. RESULTS Most of the patients (86.3%) had significant CAD (stenosis ≥ 50%) in ICA. In simple linear regression analyses, there were significant positive correlations of baPWV with sTNFR1 (r = 0.483, P < 0.001) and sTNFR2 (r = 0.366, P < 0.001). In multiple linear regression analyses, sTNFR1 (β = 0.316, P < 0.001) and sTNFR2 (β = 0.235, P = 0.005) had independent association with baPWV even after controlling for potential confounders. CONCLUSION sTNFR1 and sTNFR2 were independently associated with baPWV in patients undergoing ICA. This result may extend previous knowledge on close interactions between inflammation and arterial stiffening.
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Affiliation(s)
- Hack-Lyoung Kim
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Jung Pyo Lee
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Jung Nam An
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Jin Hyuk Kim
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
| | - Woo-Hyun Lim
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Jae-Bin Seo
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Woo-Young Chung
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Yoon Kyu Oh
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Yon Su Kim
- Seoul National University College of Medicine, Seoul, Korea
- Seoul National University Kidney Research Institute, Seoul, Korea
- Department of Medical Science, Seoul National University College of Medicine, Seoul, Korea
| | - Chun Soo Lim
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Joo-Hee Zo
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Myung-A Kim
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Hyun Kim
- Department of Internal Medicine, Boramae Medical Center, Seoul, Korea
- Seoul National University College of Medicine, Seoul, Korea
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24
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Park KT, Kim HL, Oh S, Lim WH, Seo JB, Chung WY, Kim SH, Kim MA, Zo JH. Association between reduced arterial stiffness and preserved diastolic function of the left ventricle in middle-aged and elderly patients. J Clin Hypertens (Greenwich) 2017; 19:620-626. [DOI: 10.1111/jch.12968] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 11/23/2016] [Accepted: 12/03/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Kyung-Taek Park
- Department of Internal Medicine; Boramae Medical Center; Seoul National University College of Medicine; Seoul Korea
| | - Hack-Lyoung Kim
- Department of Internal Medicine; Boramae Medical Center; Seoul National University College of Medicine; Seoul Korea
| | - Sohee Oh
- Department of Biostatistics; Boramae Medical Center; Seoul Korea
| | - Woo-Hyun Lim
- Department of Internal Medicine; Boramae Medical Center; Seoul National University College of Medicine; Seoul Korea
| | - Jae-Bin Seo
- Department of Internal Medicine; Boramae Medical Center; Seoul National University College of Medicine; Seoul Korea
| | - Woo-Young Chung
- Department of Internal Medicine; Boramae Medical Center; Seoul National University College of Medicine; Seoul Korea
| | - Sang-Hyun Kim
- Department of Internal Medicine; Boramae Medical Center; Seoul National University College of Medicine; Seoul Korea
| | - Myung-A Kim
- Department of Internal Medicine; Boramae Medical Center; Seoul National University College of Medicine; Seoul Korea
| | - Joo-Hee Zo
- Department of Internal Medicine; Boramae Medical Center; Seoul National University College of Medicine; Seoul Korea
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25
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Bell V, McCabe EL, Larson MG, Rong J, Merz AA, Osypiuk E, Lehman BT, Stantchev P, Aragam J, Benjamin EJ, Hamburg NM, Vasan RS, Mitchell GF, Cheng S. Relations Between Aortic Stiffness and Left Ventricular Mechanical Function in the Community. J Am Heart Assoc 2017; 6:JAHA.116.004903. [PMID: 28069573 PMCID: PMC5523643 DOI: 10.1161/jaha.116.004903] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Aortic stiffness impairs optimal ventricular–vascular coupling and left ventricular systolic function, particularly in the long axis. Left ventricular global longitudinal strain (GLS) has recently emerged as a sensitive measure of early cardiac dysfunction. In this study, we investigated the relation between aortic stiffness and GLS in a large community‐based sample. Methods and Results In 2495 participants (age 39–90 years, 57% women) of the Framingham Offspring and Omni cohorts, free of cardiovascular disease, we performed tonometry to measure arterial hemodynamics and echocardiography to assess cardiac function. Aortic stiffness was evaluated as carotid–femoral pulse wave velocity and as characteristic impedance, and GLS was calculated using speckle tracking–based measurements. In multivariable analyses adjusting for age, sex, height, systolic blood pressure, augmentation index, left ventricular structure, and additional cardiovascular risk factors, increased carotid–femoral pulse wave velocity (B±SE: 0.122±0.030% strain per SD, P<0.0001) and characteristic impedance (0.090±0.029, P=0.002) were both associated with worse GLS. We observed effect modification by sex on the relation between characteristic impedance and GLS (P=0.004); in sex‐stratified multivariable analyses, the relation between greater characteristic impedance and worse GLS persisted in women (0.145±0.039, P=0.0003) but not in men (P=0.73). Conclusions Multiple measures of increased aortic stiffness were cross‐sectionally associated with worse GLS after adjusting for hemodynamic variables. Parallel reductions in left ventricular long axis shortening and proximal aortic longitudinal strain in individuals with a stiffened proximal aorta, from direct mechanical ventricular‐vascular coupling, offers an alternative explanation for the observed relations.
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Affiliation(s)
| | - Elizabeth L McCabe
- Department of Biostatistics, Boston University School of Public Health, Boston, MA
| | - Martin G Larson
- Department of Biostatistics, Boston University School of Public Health, Boston, MA.,Framingham Heart Study, Framingham, MA
| | - Jian Rong
- Framingham Heart Study, Framingham, MA
| | - Allison A Merz
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | | | | | | | | | - Emelia J Benjamin
- Department of Epidemiology, Boston University School of Public Health, Boston, MA.,Framingham Heart Study, Framingham, MA.,Preventive Medicine and Cardiology Sections, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA
| | - Naomi M Hamburg
- Preventive Medicine and Cardiology Sections, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA.,Evans Department of Medicine, Boston University School of Medicine, Boston, MA
| | - Ramachandran S Vasan
- Department of Epidemiology, Boston University School of Public Health, Boston, MA.,Framingham Heart Study, Framingham, MA.,Preventive Medicine and Cardiology Sections, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA
| | | | - Susan Cheng
- Framingham Heart Study, Framingham, MA .,Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA
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26
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An HS, Baek JS, Kim GB, Lee YA, Song MK, Kwon BS, Bae EJ, Noh CI. Impaired Vascular Function of the Aorta in Adolescents with Turner Syndrome. Pediatr Cardiol 2017; 38:20-26. [PMID: 27628435 DOI: 10.1007/s00246-016-1478-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/07/2016] [Indexed: 01/15/2023]
Abstract
To investigate intrinsic vascular abnormalities of the ascending aorta before adulthood in Turner syndrome patients (TS), we compared 25 adolescent TS patients (mean age 14.6 ± 3.4 years) and 16 healthy controls from a university hospital. Blood pressure and other vascular indices were evaluated using echocardiography such as aortic strain, stiffness index, distensibility, and pulse wave velocity. Aortic strain (0.1237 vs. 0.1865, respectively; P = 0.003) and aortic distensibility (0.0049 vs. 0.0081, P = 0.002) were significantly lower in the TS group than in the controls. The fractional area change on velocity vector imaging was also lower in TS patients (29.05 vs. 36.19, P = 0.002). These findings were still observed after adjustment for age, body mass index, and systolic blood pressure. The aortic stiffness index was greater in the TS patients than in the control group (6.79 vs. 3.34, P = 0.02). The pulse wave velocity and ascending aorta diameter did not significantly differ between the TS and control groups. Blood pressures were significantly higher in the TS patients than in the controls (systolic, 120.4 vs. 108.4 mmHg, P = 0.001; diastolic 71.5 vs. 61.7 mmHg, P < 0.001). Although the dimensional changes in the aorta were not clearly observed in adolescents with TS, the elastic properties of the aorta were significantly decreased in TS patients as compared to control subjects.
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Affiliation(s)
- Hyo Soon An
- Department of Pediatrics, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea.,Department of Pediatrics, SMG-SNU Boramae Medical Center, Seoul, South Korea
| | - Jae Suk Baek
- Department of Pediatrics, Asan Medical Center, Seoul, South Korea
| | - Gi Beom Kim
- Department of Pediatrics, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea.
| | - Young Ah Lee
- Department of Pediatrics, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - Mi Kyoung Song
- Department of Pediatrics, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - Bo Sang Kwon
- Department of Pediatrics, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - Eun Jung Bae
- Department of Pediatrics, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
| | - Chung Il Noh
- Department of Pediatrics, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, South Korea
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Solovjova S, Ryliškytė L, Čelutkienė J, Badarienė J, Navickas R, Puronaitė R, Bieliauskaitė G, Skiauterytė E, Lisaitė G, Laucevičius A. Aortic stiffness is an independent determinant of left ventricular diastolic dysfunction in metabolic syndrome patients. Blood Press 2015; 25:11-20. [DOI: 10.3109/08037051.2016.1093334] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Kim HL, Seo JB, Chung WY, Kim SH, Kim MA, Zo JH. Independent association between brachial-ankle pulse wave velocity and global longitudinal strain of left ventricle. Int J Cardiovasc Imaging 2015; 31:1563-70. [DOI: 10.1007/s10554-015-0744-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 08/13/2015] [Indexed: 12/01/2022]
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Lee HS, Kim HL, Kim H, Hwang D, Choi HM, Oh SW, Seo JB, Chung WY, Kim SH, Kim MA, Zo JH. Incremental Prognostic Value of Brachial-Ankle Pulse Wave Velocity to Single-Photon Emission Computed Tomography in Patients with Suspected Coronary Artery Disease. J Atheroscler Thromb 2015; 22:1040-50. [PMID: 26235347 DOI: 10.5551/jat.29918] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIM Arterial stiffness assessed by brachial-ankle pulse wave velocity (baPWV) is predictive of cardiovascular events. This study was designed to investigate whether baPWV has an additional prognostic value to single-photon emission computed tomography (SPECT) in patients with suspected coronary artery disease (CAD). METHODS A total of 350 subjects (age, 66.2 ± 10.5 years, 53.4% male) with suspected CAD undergoing myocardial SPECT and baPWV within 30 days were retrospectively analyzed. Cardiovascular events, including cardiovascular death, acute coronary syndrome and ischemic stroke, were assessed. Both fixed and reversible perfusion defects on SPECT were considered abnormal myocardial perfusion imaging (MPI) findings. RESULTS During the median follow-up period of 441 days (interquartile range 169-719 days), cardiovascular events occurred in 21 patients (6.0%). In multivariable Cox regression analysis, abnormal MPI [hazard ratio (HR), 2.67; 95% confidence interval (CI), 1.21-10.37; p=0.024] and high baPWV (≥ 1,790 cm/s) (HR, 2.03; 95% CI, 1.08-6.38; p=0.007) were independent predictors of clinical events even after adjusting for possible confounders. Also, high baPWV had an incremental prognostic value to traditional risk factors and abnormal MPI in predicting cardiovascular events (overall Chi-square, from 24.08 to 27.42; p < 0.001). Kaplan-Meier survival curves stratified by baPWV and MPI proved significantly improved prediction of cardiovascular events (log-rank p=0.001). CONCLUSIONS baPWV has an incremental prognostic value to traditional risk factors and MPI. Therefore, baPWV can be used to identify subjects at higher risk of cardiovascular events in patients undergoing SPECT.
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Affiliation(s)
- Hee-Sun Lee
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine
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30
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Kim HL, Jin KN, Seo JB, Choi YH, Chung WY, Kim SH, Kim MA, Zo JH. The association of brachial-ankle pulse wave velocity with coronary artery disease evaluated by coronary computed tomography angiography. PLoS One 2015; 10:e0123164. [PMID: 25875036 PMCID: PMC4395291 DOI: 10.1371/journal.pone.0123164] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 02/18/2015] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to investigate whether brachial-ankle pulse wave velocity (baPWV) is associated with the severity of coronary artery disease (CAD) assessed by coronary computed tomography angiography (CCTA), and to evaluate baPWV as a predictor of obstructive CAD on CCTA. A total of 470 patients who underwent both baPWV and CCTA were included. We evaluated stenosis degree and plaque characteristics on CCTA. To estimate the severity of CAD, we calculated the number of segment with plaque (segment involvement score; SIS), stenosis degree-weighted plaque score (segment stenosis score; SSS), and coronary artery calcium score (CACS). The mean baPWV was 1,485 ± 315 cm/s (range, 935-3,175 cm/s). Non-obstructive (stenosis < 50%) and obstructive (stenosis ≥ 50%) CAD was found in 129 patients (27.4%) and 144 (30.6%), respectively. baPWV in patients with obstructive CAD was higher than that of patients with non-obstructive (1,680 ± 396 cm/s versus 1,477 ± 244 cm/s, P < 0.001) or no CAD (1,680 ± 396 cm/s versus ± 196 1,389 cm/s, P < 0.001). baPWV showed significant correlation with SSS (r = 0.429, P < 0.001), SIS (r = 0.395, P < 0.001), CACS (r 0.346, P < 0.001), and the number of segment with non-calcified plaque (r 0.092, P = 0.047), mixed plaque (r = 0.267, P < 0.001), and calcified plaque (r = 0.348, P < 0.001), respectively. The optimal baPWV cut-off value for the detection of obstructive CAD was 1,547 cm/s. baPWV ≥ 1,547 cm/s was independent predictor for the obstructive CAD. In conclusion, baPWV is well correlated with the severity of CAD evaluated by CCTA. baPWV has the potential to predict severity of coronary artery atherosclerosis.
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Affiliation(s)
- Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Kwang Nam Jin
- Department of Radiology, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Jae-Bin Seo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Young Ho Choi
- Department of Radiology, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Woo-Young Chung
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Hyun Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Myung-A Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Joo-Hee Zo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
- * E-mail:
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31
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Kim HL, Seo JB, Chung WY, Kim SH, Kim MA, Zo JH. Association between invasively measured central aortic pressure and left ventricular diastolic function in patients undergoing coronary angiography. Am J Hypertens 2015; 28:393-400. [PMID: 25125636 DOI: 10.1093/ajh/hpu146] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Because of the invasive nature of catheterization, limited information is available on hemodynamic interaction between the left ventricle and aorta using invasive aortic pressure monitoring. Our aim was to investigate whether parameters of invasively measured central aortic pressure waveform were related with those of left ventricular (LV) diastolic function. METHODS A total of 153 consecutive stable patients (mean age = 64±11 years; 62% men) undergoing invasive coronary angiography (ICA) and transthoracic echocardiography (TTE) were prospectively evaluated. Central aortic pressure waveform was obtained at the ascending aorta using a pigtail catheter before ICA. We calculated pulse pressure (PP), fractional PP (FPP; the ratio of PP to mean pressure), pulsatility index (PI; the ratio of PP to diastolic pressure), augmentation index, wave reflection time, and ejection duration and analyzed their associations with parameters of LV diastolic function in TTE. RESULTS Most patients (n = 135/153; 88.2%) had significant stenosis (≥50%) of ≥1 epicardial coronary arteries. In multiple linear regression analyses, e' and E/e' were significantly correlated with PP, FPP, and PI even after adjustment for potential confounders. There were no significant correlations between other parameters of LV diastolic function, including E/A, deceleration time, and left atrial volume index and parameters of central aortic pressure wave. CONCLUSIONS Invasively measured central aortic PP, FPP, and PI were independently associated with e' and E/e' in patients undergoing ICA. This result adds to the evidence of a close interaction between LV diastolic function and aortic stiffness in this population.
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Affiliation(s)
- Hack-Lyoung Kim
- Division of Cardiology, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Jae-Bin Seo
- Division of Cardiology, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Woo-Young Chung
- Division of Cardiology, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Hyun Kim
- Division of Cardiology, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Myung-A Kim
- Division of Cardiology, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Joo-Hee Zo
- Division of Cardiology, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
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Kim HL, Seo JB, Chung WY, Kim SH, Zo JH, Kim MA. The association between ambulatory blood pressure profile and brachial–ankle pulse wave velocity in untreated hypertensive subjects. Blood Press 2014; 24:139-46. [DOI: 10.3109/08037051.2014.986953] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Jae-Bin Seo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Woo-Young Chung
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Hyun Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Joo-Hee Zo
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Myung-A Kim
- Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
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Kim HL, Lee JM, Seo JB, Chung WY, Kim SH, Zo JH, Kim MA. The effects of metabolic syndrome and its components on arterial stiffness in relation to gender. J Cardiol 2014; 65:243-9. [PMID: 25034706 DOI: 10.1016/j.jjcc.2014.05.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 05/16/2014] [Accepted: 05/23/2014] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The influence of gender-dependent metabolic risk factors on arterial stiffness has not been fully determined. This study was performed to investigate the relationship between components of metabolic syndrome and brachial-ankle pulse wave velocity (baPWV) according to gender. METHODS A total of 537 subjects (54.4±7.5 years and 70.6% men) who underwent baPWV measurement during routine check-ups were analyzed. RESULTS BaPWV was 1363±229cm/s in men and 1387±269cm/s in women (p=0.313). The prevalence of metabolic syndrome was not different according to gender (23% in men versus 27% in women, p=0.335). In multiple linear regression analyses, after adjustment for age, baPWV was significantly associated with systolic and diastolic blood pressures, fasting glucose, and triglyceride in both genders. Waist circumference was associated with baPWV in women but not in men. High-density lipoprotein levels were not associated with baPWV in either gender. Subjects with metabolic syndrome had a higher baPWV than those without metabolic syndrome for women aged <55 years, but not for all men and women aged ≥55 years. As the number of the components of metabolic syndrome increased, baPWV increased proportionally in both genders. However, this correlation was more strong in women than that in men (β=0.408 versus β=0.146 after adjustment for age). CONCLUSION In middle-aged Koreans, women showed stronger associations between each component of metabolic syndrome and baPWV than men. The association of each component of metabolic syndrome to arterial stiffness may differ between men and women.
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Affiliation(s)
- Hack-Lyoung Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ju-Myung Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jae-Bin Seo
- Division of Cardiology, Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Woo-Young Chung
- Division of Cardiology, Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sang-Hyun Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Joo-Hee Zo
- Division of Cardiology, Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Myung-A Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Republic of Korea.
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