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Putra TMH, Rodriguez-Fernandez R, Widodo WA, Elfiana M, Laksono S, Nguyen QN, Tan JWC, Narula J. Myocardial fibrosis in rheumatic heart disease: emerging concepts and clinical implications. Front Cardiovasc Med 2023; 10:1230894. [PMID: 37564912 PMCID: PMC10411611 DOI: 10.3389/fcvm.2023.1230894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/03/2023] [Indexed: 08/12/2023] Open
Abstract
Rheumatic heart disease (RHD) remains a significant cardiovascular burden in the world even though it is no longer common in affluent countries. Centuries of history surrounding this disease provide us with a thorough understanding of its pathophysiology. Infections in the throat, skin, or mucosa are the gateway for Group A Streptococcus (GAS) to penetrate our immune system. A significant inflammatory response to the heart is caused by an immunologic cascade triggered by GAS antigen cross-reactivity. This exaggerated immune response is primarily responsible for cardiac dysfunction. Recurrent inflammatory processes damage all layers of the heart, including the endocardium, myocardium, and pericardium. A vicious immunological cycle involving inflammatory mediators, angiotensin II, and TGF-β promotes extracellular matrix remodeling, resulting in myocardial fibrosis. Myocardial fibrosis appears to be a prevalent occurrence in patients with RHD. The presence of myocardial fibrosis, which causes left ventricular dysfunction in RHD, might be utilized to determine options for treatment and might also be used to predict the outcome of interventions in patients with RHD. This emerging concept of myocardial fibrosis needs to be explored comprehensively in order to be optimally utilized in the treatment of RHD.
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Affiliation(s)
| | | | - Wishnu Aditya Widodo
- Department of Cardiology and Vascular Medicine, Jakarta Heart Center, Jakarta, Indonesia
| | - Maria Elfiana
- Research Unit, Jakarta Heart Center, Jakarta, Indonesia
| | - Sidhi Laksono
- Faculty of Medicine, Universitas Muhammadiyah Prof. DR. Hamka, Tangerang, Indonesia
| | | | - Jack Wei Chieh Tan
- Department of Cardiology, National Heart Centre Singapore, Singapore, Singapore
| | - Jagat Narula
- Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Bottinor WJ, Flamand Y, Haas NB, ONeill AM, DiPaola RS, Subramanian P, Cella D, Hundley WG, Wagner LI, Salsman JM, Ky B. Cardiovascular Implications of Vascular Endothelial Growth Factor Inhibition Among Adolescents/Young Adults in ECOG-ACRIN E2805. J Natl Compr Canc Netw 2023; 21:725-731.e1. [PMID: 37433436 PMCID: PMC10494962 DOI: 10.6004/jnccn.2023.7018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 03/06/2023] [Indexed: 07/13/2023]
Abstract
BACKGROUND Cardiovascular disease (CVD) is a leading cause of morbidity and mortality among adolescents and young adults (AYAs) diagnosed with cancer. The aim of this study was to assess the incidence and predictors of left ventricular systolic dysfunction (LVSD) and hypertension among AYAs receiving VEGF inhibition compared with non-AYAs. METHODS This retrospective analysis used data from the ASSURE trial (ClinicalTrials.gov identifier: NCT00326898), in which participants with nonmetastatic, high-risk, renal cell cancer were randomized to sunitinib, sorafenib, or placebo. The incidence of LVSD (left ventricular ejection fraction decrease >15%) and hypertension (blood pressure ≥140/90 mm Hg) were compared using nonparametric tests. Multivariable logistic regression examined the association between AYA status, LVSD, and hypertension while adjusting for clinical factors. RESULTS AYAs represented 7% (103/1,572) of the population. Over a study treatment period of 54 weeks, the incidence of LVSD was not significantly different among AYAs (3%; 95% CI, 0.6%-8.3%) versus non-AYAs (2%; 95% CI, 1.2%-2.7%). The incidence of hypertension was significantly lower among AYAs (18%; 95% CI, 7.5%-33.5%) compared with non-AYAs (46%; 95% CI, 41.9%-50.4%) in the placebo arm. In the sunitinib and sorafenib groups, the incidence of hypertension for AYAs compared with non-AYAs was 29% (95% CI, 15.1%-47.5%) versus 47% (95% CI, 42.3%-51.7%), and 54% (95% CI, 33.9%-72.5%) versus 63% (95% CI, 58.6%-67.7%), respectively. AYA status (odds ratio, 0.48; 95% CI, 0.31-0.75) and female sex (odds ratio, 0.74; 95% CI, 0.59-0.92) were each associated with a lower risk of hypertension. CONCLUSIONS LVSD and hypertension were prevalent among AYAs. CVD among AYAs is only partially explained by cancer therapy. Understanding CVD risk among AYA cancer survivors is important for promoting cardiovascular health in this growing population.
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Affiliation(s)
- Wendy J. Bottinor
- Division of Cardiovascular Medicine, Department of Internal Medicine, Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Yael Flamand
- Department of Data Science/ECOG-ACRIN Biostatistics Center, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Naomi B. Haas
- Division of Medical Oncology, Department of Internal Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Anne M. ONeill
- Department of Data Science/ECOG-ACRIN Biostatistics Center, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Robert S. DiPaola
- Division of Medical Oncology, Department of Internal Medicine, University of Kentucky, Lexington, Kentucky
| | | | - David Cella
- Department of Medical Social Sciences, Northwestern Medicine, Chicago, Illinois
| | - W. Gregory Hundley
- Division of Cardiovascular Medicine, Department of Internal Medicine, Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Lynne I. Wagner
- Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina
| | - John M. Salsman
- Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, North Carolina
| | - Bonnie Ky
- Division of Cardiology, Department of Internal Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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Namasivayam M, Meredith T, Muller DWM, Roy DA, Roy AK, Kovacic JC, Hayward CS, Feneley MP. Machine learning prediction of progressive subclinical myocardial dysfunction in moderate aortic stenosis. Front Cardiovasc Med 2023; 10:1153814. [PMID: 37324638 PMCID: PMC10266266 DOI: 10.3389/fcvm.2023.1153814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023] Open
Abstract
Background Moderate severity aortic stenosis (AS) is poorly understood, is associated with subclinical myocardial dysfunction, and can lead to adverse outcome rates that are comparable to severe AS. Factors associated with progressive myocardial dysfunction in moderate AS are not well described. Artificial neural networks (ANNs) can identify patterns, inform clinical risk, and identify features of importance in clinical datasets. Methods We conducted ANN analyses on longitudinal echocardiographic data collected from 66 individuals with moderate AS who underwent serial echocardiography at our institution. Image phenotyping involved left ventricular global longitudinal strain (GLS) and valve stenosis severity (including energetics) analysis. ANNs were constructed using two multilayer perceptron models. The first model was developed to predict change in GLS from baseline echocardiography alone and the second to predict change in GLS using data from baseline and serial echocardiography. ANNs used a single hidden layer architecture and a 70%:30% training/testing split. Results Over a median follow-up interval of 1.3 years, change in GLS (≤ or >median change) could be predicted with accuracy rates of 95% in training and 93% in testing using ANN with inputs from baseline echocardiogram data alone (AUC: 0.997). The four most important predictive baseline features (reported as normalized % importance relative to most important feature) were peak gradient (100%), energy loss (93%), GLS (80%), and DI < 0.25 (50%). When a further model was run including inputs from both baseline and serial echocardiography (AUC 0.844), the top four features of importance were change in dimensionless index between index and follow-up studies (100%), baseline peak gradient (79%), baseline energy loss (72%), and baseline GLS (63%). Conclusions Artificial neural networks can predict progressive subclinical myocardial dysfunction with high accuracy in moderate AS and identify features of importance. Key features associated with classifying progression in subclinical myocardial dysfunction included peak gradient, dimensionless index, GLS, and hydraulic load (energy loss), suggesting that these features should be closely evaluated and monitored in AS.
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Affiliation(s)
- Mayooran Namasivayam
- Department of Cardiology, St Vincent’s Hospital, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
- Heart Valve Disease and Artificial Intelligence Laboratory, Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
| | - Thomas Meredith
- Department of Cardiology, St Vincent’s Hospital, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
- Heart Valve Disease and Artificial Intelligence Laboratory, Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
| | - David W. M. Muller
- Department of Cardiology, St Vincent’s Hospital, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
| | - David A. Roy
- Department of Cardiology, St Vincent’s Hospital, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
| | - Andrew K. Roy
- Department of Cardiology, St Vincent’s Hospital, Sydney, NSW, Australia
| | - Jason C. Kovacic
- Department of Cardiology, St Vincent’s Hospital, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
- Vascular Biology Laboratory, Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
- Icahn School of Medicine at Mount Sinai, Cardiovascular Research Institute, New York, NY, United States
| | - Christopher S. Hayward
- Department of Cardiology, St Vincent’s Hospital, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
- Cardiac Mechanics Laboratory, Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
| | - Michael P. Feneley
- Department of Cardiology, St Vincent’s Hospital, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
- Cardiac Mechanics Laboratory, Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
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Datta G, Dastidar DG, Chakraborty H. Strain echocardiography in predicting LV dysfunction in RV apical pacing. Indian Heart J 2023; 75:77-81. [PMID: 36603797 PMCID: PMC9986733 DOI: 10.1016/j.ihj.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 01/04/2023] Open
Abstract
Right ventricular (RV) pacing is associated with a reduction in left ventricular (LV) systolic function, thought to be mediated by pacing-induced ventricular dyssynchrony. The prevalence of heart failure after RV pacing is reported to range from 31±3%. We studied 60 subjects with high-grade atrioventricular block and Complete Heart Block (CHB) scheduled to undergo right ventricular apical pacing. 2D echocardiography was done at baseline, 1 month and 12 months. Pacing-induced cardiomyopathy was defined as a reduction in LVEF to <45%. Strain was evaluated off-line from digitally stored images using all advanced software package (cardiac wall motion quantification (CMQ); Toshiba Medical Systems). Longitudinal strain for individual myocardial segments was measured from the apical four-chamber, two-chamber and long axis views (16 segment AHA/ASE model). None had LV dysfunction at baseline based on 2D and strain echo imaging. Subsequently 18 patients were detected to develop low GLS score (less than -14.5) at 1 month. On subsequent follow up at 1 year, all 18 patients developed LV dysfunction on 2D Echocardiography. Thus Strain imaging with GLS score helped in early detection of LV dysfunction in RV apical pacing subjects. Pacing-induced cardiomyopathy had significant association with high grade AV block with pacemaker dependency. It had no significant associations with other comorbidities like diabetes, hypertension, ischemic heart disease or with the type of medication intake. However there was a statistically significant association with heart failure.
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Affiliation(s)
- Goutam Datta
- Department of Cardiology, Burdwan Medical College, Burdwan, India.
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Halabi A, Potter E, Yang H, Wright L, Sacre JW, Shaw JE, Marwick TH. Association of biomarkers and risk scores with subclinical left ventricular dysfunction in patients with type 2 diabetes mellitus. Cardiovasc Diabetol 2022; 21:278. [PMID: 36494683 PMCID: PMC9737699 DOI: 10.1186/s12933-022-01711-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Subclinical LV dysfunction (LVD) identifies heart failure (HF) risk in type 2 diabetes mellitus (T2DM). We sought the extent to which clinical scores (ARIC-HF, WATCH-DM), natriuretic peptides (NTpBNP) and troponin (hs-TnT) were associated with subclinical LV dysfunction (LVD). These associations could inform the ability of these tests to identify which patients should undergo echocardiography. METHODS Participants with T2DM were prospectively recruited from three community-based populations. ARIC-HF risk at 4 years and WATCH-DM scores were calculated from clinical data. NTpBNP and hs-TnT were measured using an electro-chemiluminescence assay. All underwent a comprehensive echocardiogram. We calculated the sensitivity and specificity of clinical scores and biomarkers to identify abnormal global longitudinal strain (GLS ≥ -16%)), diastolic function (E/e' ≥ 14 or e' < 8 cm/s), left atrial volume index (LAV > 34 ml/m2) and LV hypertrophy (LV mass index > 88 g/m2 (F) > 102 g/m2(M)). RESULTS Of 804 participants (median age 69 years [inter-quartile range (IQR) 65-73], 36% female), clinical scores suggested significant HF risk (median ARIC-HF 8% [IQR 4-12]; WATCH-DM 10 points [IQR 8-12]), and the median NTpBNP was 50 pg/mL [IQR 25-101] and hs-TnT 9.6 pg/mL [IQR 6.8-13.6]. Abnormal GLS was present in 126 (17%), elevated E/e' in 114 (15%), impaired e' in 629 (78%), increased LAV in 351 (44%) and LV hypertrophy in 113 (14%). After adjustments for age, body-mass index, and renal function, each standard deviation increase in NTpBNP was associated with a GLS increase of 0.32 (p < 0.001) and hs-TnT increase by 0.26 (p < 0.001). Similar trends were observed with ARIC-HF (standardised β = 0.22, p < 0.001) and WATCH-DM (standardised β = 0.22, p < 0.001) in univariable analyses. However, none of the risk assessment tools provided satisfactory discrimination for abnormal GLS (AUC 63%), diastolic indices (e' AUC 54-61%) or LV mass (AUC 59-67%). At a sensitivity of 90%, there was an unacceptably low (< 50%) specificity. CONCLUSION Although risk assessment based on clinical scores or biomarkers would be desirable to stratify HF risk in people with T2DM, they show a weak relationship with subclinical LVD.
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Affiliation(s)
- Amera Halabi
- grid.1051.50000 0000 9760 5620(Dept) Imaging Research, Baker Heart and Diabetes Institute, 75 Commercial Road, PO Box 6492, Melbourne, VIC 3004 Australia ,grid.1002.30000 0004 1936 7857School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004 Australia
| | - Elizabeth Potter
- grid.1051.50000 0000 9760 5620(Dept) Imaging Research, Baker Heart and Diabetes Institute, 75 Commercial Road, PO Box 6492, Melbourne, VIC 3004 Australia ,grid.1002.30000 0004 1936 7857School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004 Australia
| | - Hilda Yang
- grid.1009.80000 0004 1936 826X(Dept) Imaging Research, Menzies Institute for Medical Research, 17 Liverpool Street, Hobart, TAS 7000 Australia
| | - Leah Wright
- grid.1051.50000 0000 9760 5620(Dept) Imaging Research, Baker Heart and Diabetes Institute, 75 Commercial Road, PO Box 6492, Melbourne, VIC 3004 Australia
| | - Julian W. Sacre
- grid.1051.50000 0000 9760 5620(Dept) Imaging Research, Baker Heart and Diabetes Institute, 75 Commercial Road, PO Box 6492, Melbourne, VIC 3004 Australia
| | - Jonathan E. Shaw
- grid.1051.50000 0000 9760 5620(Dept) Imaging Research, Baker Heart and Diabetes Institute, 75 Commercial Road, PO Box 6492, Melbourne, VIC 3004 Australia ,grid.1002.30000 0004 1936 7857School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004 Australia
| | - Thomas H. Marwick
- grid.1051.50000 0000 9760 5620(Dept) Imaging Research, Baker Heart and Diabetes Institute, 75 Commercial Road, PO Box 6492, Melbourne, VIC 3004 Australia ,grid.1002.30000 0004 1936 7857School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004 Australia ,grid.1009.80000 0004 1936 826X(Dept) Imaging Research, Menzies Institute for Medical Research, 17 Liverpool Street, Hobart, TAS 7000 Australia
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Poojary MS, Samanth J, Nayak K, Shetty S, Nayak SK, Rao MS. Evaluation of subclinical left ventricular systolic dysfunction using two-dimensional speckle-tracking echocardiography in patients with Child-Pugh A and B cirrhosis: A case-control study. Indian J Gastroenterol 2022; 41:567-575. [PMID: 36576699 DOI: 10.1007/s12664-022-01277-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 06/25/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Although studies have proven that liver cirrhosis affects cardiac hemodynamics by means of circulatory overload, they present with definite cardiac functional alteration mostly with end-stage disease. There is limited data on relationship between progression of cirrhosis, cardiac mechanics and sub-clinical dysfunction. This study was done to assess ventricular myocardial mechanics using speckle tracking and deformation imaging among Child-Turcotte-Pugh (CTP) classification A and B cirrhosis. METHOD Seventy patients with cirrhosis of Child-Pugh A/B class and sixty-two healthy subjects were prospectively evaluated by standard conventional echocardiography and deformation imaging with rotational echocardiography. Clinical stage of liver cirrhosis was assessed by model for end-stage liver disease (MELD) scores and CTP classification. RESULTS Mean ages of patients with cirrhosis and controls were 55.64±14 years and 52.24±12 years, respectively. Though left ventricular (LV) dimensions (end diastolic dimension: 47.27±4.6 mm vs. 45.03±3.8 mm, p = 0.003; end systolic dimension: 30.33±4.9 mm vs. 28.40±2.91 mm, p = 0.006) and volumes (end diastolic volume: 82.08±22.53 mL vs. 68.18±15.75 mL, p = 0.001; end systolic volume: 28.60±8.42 mL vs. 22.18±7.48 mL, p = 0.001) were significantly higher in patients with cirrhosis, mean ejection fraction (EF) by Simpsons method was higher among controls (65.83±5.79% vs. 68.35±5.79%, p = 0.009). Left atrial volume was higher in cirrhosis group indicating presence of diastolic dysfunction (41.24±14.10 mL vs. 26.08±6.4 mL, p = 0.001). Global longitudinal strain as assessed by speckle tracking echocardiography did not show statistical significant difference between two groups (-22.35±4.08% vs. -21.80±2.54%, p = 0.348). Median value of torsion parameters in patients with cirrhosis did not differ compared to controls (torsion in degrees: 2.46 vs. 2.79, p = 0.268). CONCLUSION Patients with Child-Pugh A and B stages of cirrhosis present with preserved longitudinal strain, normal torsion but with subtle diastolic dysfunction. Higher MELD score may correlate with increased longitudinal strain possibly due to hyperdynamic state.
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Affiliation(s)
- M Swathi Poojary
- Department of Cardiovascular Technology, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576 104, India
| | - Jyothi Samanth
- Department of Cardiovascular Technology, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576 104, India
| | - Krishnananda Nayak
- Department of Cardiovascular Technology, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576 104, India
| | - Shiran Shetty
- Department of Gastroenterology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, 576 104, India
| | - Satish K Nayak
- Department of Gastroenterology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, 576 104, India
| | - M Sudhakar Rao
- Department of Cardiology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, 576 104, India.
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Wang Q, Fu C, Xia H, Gao Y. Aggravating effect of obstructive sleep apnoea on left ventricular remodelling and function disorder in patients with type 2 diabetes mellitus: a case-control study by 3D speckle tracking echocardiography. Acta Cardiol 2022; 77:734-743. [PMID: 34514948 DOI: 10.1080/00015385.2021.1973772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the early alterations of left ventricular (LV) structure and function in type 2 diabetes mellitus (T2DM) patients with or without obstructive sleep apnoea (OSA) using 3 D speckle tracking echocardiography (3DSTE). METHODS Eighty T2DM patients with preserved LVEF were included, half of whom had OSA as co-morbidity. Forty age- and sex-matched controls were also enrolled. LV structure and function were evaluated by conventional echocardiography and 3DSTE. LV global longitudinal strain (GLS), global circumferential strain (GCS), global area strain (GAS), and global radial strain (GRS) were all measured by 3DSTE. RESULTS Four geometric patterns (normal geometry, concentric remodelling, concentric and eccentric hypertrophy) occupied significantly different proportions within the three groups (p = .014). LV remodelling made up higher shares in two T2DM groups than in the controls, whereas LV hypertrophy appeared most frequently in the patients with T2DM and OSA. The patients with T2DM alone had significantly lower GLS and GCS than the controls (both p < .01). The patients with T2DM and OSA had significantly lower GLS, GCS, GAS, and GRS than the controls and the patients with T2DM alone (all p < .01). Fasting plasma glucose (FPG), OSA and BMI had negative impacts on all and part of the strain values in T2DM patients. The T2DM patients with moderate-to-severe OSA showed significantly lower GLS, GCS, GAS, and GRS than those with mild OSA (all p < .05). CONCLUSIONS The 3DSTE plus conventional echocardiography could detect the sub-clinical LV alterations in T2DM patients with or without OSA.
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Affiliation(s)
- Qingqing Wang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Chixue Fu
- Department of Ultrasound, the Armed Police Corps Hospital of Chongqing, Chongqing, China
| | - Hongmei Xia
- Department of Ultrasound, Xinqiao Hospital, The Third Military Medical University, Chongqing, China
| | - Yunhua Gao
- Department of Ultrasound, Xinqiao Hospital, The Third Military Medical University, Chongqing, China
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Potter E, Stephenson G, Harris J, Wright L, Marwick TH. Screening-Guided Spironolactone Treatment of Subclinical Left Ventricular Dysfunction for Heart Failure Prevention in At-risk Patients. Eur J Heart Fail 2022; 24:620-630. [PMID: 35014128 DOI: 10.1002/ejhf.2428] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/21/2021] [Accepted: 01/04/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Subclinical left ventricular dysfunction (LVD) is a prelude to symptomatic heart failure (HF). We hypothesised that screening-guided treatment with spironolactone would prevent incident HF in at-risk patients. METHODS We randomised asymptomatic, community-dwelling subjects aged ≥65 years old, with at least one non-ischaemic HF risk factor (hypertension, type 2 diabetes mellitus or obesity) to echocardiography-guided therapy or usual care. Spironolactone therapy was triggered by the detection of subclinical LVD (GLS ≤16% or diastolic abnormalities (at least one of E/e'>15, E/e' >10 with left atrial enlargement [LAE] or impaired relaxation [E/A <0.8, IR], LAE with IR), or borderline GLS (17%) with IR or borderline GLS with LAE. The primary outcome was incident HF at 24 months. Secondary outcomes were change in 6-minute walk test (6MWT) and change in LV function. RESULTS LVD was identified in 161 (46%) of 349 participants (age 70 years [68-73], 201 (58%) women). The trial was stopped because of a 55% rate of spironolactone discontinuation, due primarily to decline in renal function. Incident HF developed in 11 (3.5%) of 310 participants completing follow-up, with no difference between usual care and intervention (4 [2.5%] vs. 7 [4.7%], p=0.29), decline in 6MWT distance (p=0.28), persistent or new LVD (p=0.58), nor change in GLS with intervention (p=0.15). A per-protocol analysis of 131 patients with baseline LVD and a follow-up echocardiogram, showed resolution of LVD with spironolactone therapy (61% vs 33%, p=0.01). CONCLUSION The study was underpowered to determine whether screening-guided spironolactone therapy reduced incident HF because spironolactone was frequently discontinued due to renal function criteria. However, LVD resolved in more patients treated with spironolactone than in untreated patients. Future trials should use less conservative renal criteria for spironolactone discontinuation.
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Affiliation(s)
- Elizabeth Potter
- Baker Heart and Diabetes Institute.,School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria
| | | | | | | | - Thomas H Marwick
- Baker Heart and Diabetes Institute.,School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria
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Kujur PP, Jhala M, Bhondve A, Lanjewar C, Matta R, Deshmukh H. Left ventricular global longitudinal strain imaging in identifying subclinical myocardial dysfunction among covid-19 survivors. Indian Heart J 2021; 74:51-55. [PMID: 34933014 PMCID: PMC8683382 DOI: 10.1016/j.ihj.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 10/26/2022] Open
Abstract
BACKGROUND Covid-19 is multi-system viral infection caused by SARS-CoV-2 virus. Apart from having acute severe respiratory illness causing high mortality, the disease also has a variety of cardiovascular manifestations contributing to morbidity as well as mortality. Cardiac dysfunction and myocarditis are well established complications of Covid-19 as evident in multiple studies after the Covid-19 pandemic. However it is not sufficiently studied in Indian patients either by Echocardiography or by any other imaging modalities like cardiac magnetic resonance imaging (MRI). METHODOLOGY In this study, we analysed the severity of Left ventricular(LV) dysfunction in Covid-19 survivors. A total of 100 consecutive patients of Covid-19 after one month of discharge who had no underlying cardiovascular diseases underwent echocardiography and global longitudinal strain (GLS) imaging. This study cohort included patients with mild 42 (42%),moderate 46(46%) and severe 12(12%) Covid-19 disease as defined by computerised tomography (CT) severity score. RESULT We observed that total 36(36%) patients had reduced ejection fraction(EF) which included 11 patients having EF <40% and remaining 25(25%) having EF 40-50% (p<0.002). Also 22 (22%) patients had abnormal global longitudinal strain (GLS) values with normal ejection fraction which is suggestive of subclinical myocarditis. We observed LV dysfunction in 7(19.5%) patients who had severe Covid-19 while mild to moderate LV dysfunction observed in 29(80.5%) non critical patients. CONCLUSION In conclusion our study demonstrates that myocardial dysfunction is common in covid-19 regardless of disease severity. 2D-echocardiography with GLS is likely to detect early LV dysfunction among these patients.
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Affiliation(s)
| | - Malav Jhala
- Department of Cardiology, Seth GS Medical College & KEMH, Mumbai, India
| | - Amit Bhondve
- Department of Community Medicine, Seth GS Medical College & KEMH, Mumbai, India
| | - Charan Lanjewar
- Department of Cardiology, Seth GS Medical College & KEMH, Mumbai, India.
| | - Rajesh Matta
- Department of Cardiology, Seth GS Medical College & KEMH, Mumbai, India
| | - Hemant Deshmukh
- Department of Radiology, Seth GS Medical College & KEMH, Mumbai, India
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10
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Henderson J, Dubey PK, Patil M, Singh S, Dubey S, Namakkal Soorappan R, Kannappan R, Sethu P, Qin G, Zhang J, Krishnamurthy P. microRNA-377 Signaling Modulates Anticancer Drug-Induced Cardiotoxicity in Mice. Front Cardiovasc Med 2021; 8:737826. [PMID: 34485421 PMCID: PMC8415717 DOI: 10.3389/fcvm.2021.737826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 07/26/2021] [Indexed: 11/13/2022] Open
Abstract
Doxorubicin (DOX, an anthracycline) is a widely used chemotherapy agent against various forms of cancer; however, it is also known to induce dose-dependent cardiotoxicity leading to adverse complications. Investigating the underlying molecular mechanisms and strategies to limit DOX-induced cardiotoxicity might have potential clinical implications. Our previous study has shown that expression of microRNA-377 (miR-377) increases in cardiomyocytes (CMs) after cardiac ischemia-reperfusion injury in mice, but its specific role in DOX-induced cardiotoxicity has not been elucidated. In the present study, we investigated the effect of anti-miR-377 on DOX-induced cardiac cell death, remodeling, and dysfunction. We evaluated the role of miR-377 in CM apoptosis, its target analysis by RNA sequencing, and we tested the effect of AAV9-anti-miR-377 on DOX-induced cardiotoxicity and mortality. DOX administration in mice increases miR-377 expression in the myocardium. miR-377 inhibition in cardiomyocyte cell line protects against DOX-induced cell death and oxidative stress. Furthermore, RNA sequencing and Gene Ontology (GO) analysis revealed alterations in a number of cell death/survival genes. Intriguingly, we observed accelerated mortality and enhanced myocardial remodeling in the mice pretreated with AAV9-anti-miR-377 followed by DOX administration as compared to the AAV9-scrambled-control-pretreated mice. Taken together, our data suggest that in vitro miR-377 inhibition protects against DOX-induced cardiomyocyte cell death. On the contrary, in vivo administration of AAV9-anti-miR-377 increases mortality in DOX-treated mice.
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Affiliation(s)
- John Henderson
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Praveen K Dubey
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Mallikarjun Patil
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Sarojini Singh
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Shubham Dubey
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rajasekaran Namakkal Soorappan
- Division of Molecular & Cellular Pathology, Department of Pathology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ramaswamy Kannappan
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Palaniappan Sethu
- Division of Cardiovascular Disease, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Gangjian Qin
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jianyi Zhang
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Prasanna Krishnamurthy
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
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11
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Furihata T, Maekawa S, Takada S, Kakutani N, Nambu H, Shirakawa R, Yokota T, Kinugawa S. Premedication with pioglitazone prevents doxorubicin-induced left ventricular dysfunction in mice. BMC Pharmacol Toxicol 2021; 22:27. [PMID: 33962676 PMCID: PMC8103594 DOI: 10.1186/s40360-021-00495-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 04/26/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Doxorubicin (DOX) is widely used as an effective chemotherapeutic agent for cancers; however, DOX induces cardiac toxicity, called DOX-induced cardiomyopathy. Although DOX-induced cardiomyopathy is known to be associated with a high cumulative dose of DOX, the mechanisms of its long-term effects have not been completely elucidated. Pioglitazone (Pio) is presently contraindicated in patients with symptomatic heart failure owing to the side effects. The concept of drug repositioning led us to hypothesize the potential effects of Pio as a premedication before DOX treatment, and to analyze this hypothesis in mice. METHODS First, for the hyperacute (day 1) and acute (day 7) DOX-induced dysfunction models, mice were fed a standard diet with or without 0.02% (wt/wt) Pio for 5 days before DOX treatment (15 mg/kg body weight [BW] via intraperitoneal [i.p.] administration). The following 3 treatment groups were analyzed: standard diet + vehicle (Vehicle), standard diet + DOX (DOX), and Pio + DOX. Next, for the chronic model (day 35), the mice were administrated DOX once a week for 5 weeks (5 mg/kg BW/week, i.p.). RESULTS In the acute phase after DOX treatment, the percent fractional shortening of the left ventricle (LV) was significantly decreased in DOX mice. This cardiac malfunction was improved in Pio + DOX mice. In the chronic phase, we observed that LV function was preserved in Pio + DOX mice. CONCLUSIONS Our findings may provide a new pathophysiological explanation by which Pio plays a role in the treatment of DOX-induced cardiomyopathy, but the molecular links between Pio and DOX-induced LV dysfunction remain largely elusive.
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Affiliation(s)
- Takaaki Furihata
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.
| | - Satoshi Maekawa
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Shingo Takada
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
- Faculty of Lifelong Sport, Department of Sports Education, Hokusho University, Ebetsu, 069-8511, Japan
| | - Naoya Kakutani
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
- Research Fellow of the Japan Society for the Promotion of Science, Tokyo, Japan
| | - Hideo Nambu
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Ryosuke Shirakawa
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Takashi Yokota
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Shintaro Kinugawa
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
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12
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Trivedi SJ, Tang S, Byth K, Stefani L, Lo Q, Otton J, Jameson M, Tran D, Batumalai V, Holloway L, Delaney GP, Koh ES, Thomas L. Segmental Cardiac Radiation Dose Determines Magnitude of Regional Cardiac Dysfunction. J Am Heart Assoc 2021; 10:e019476. [PMID: 33749308 PMCID: PMC8174310 DOI: 10.1161/jaha.120.019476] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background Subclinical left ventricular dysfunction detected by 2‐dimensional global longitudinal strain post breast radiotherapy has been described in patients with breast cancer. We hypothesized that left ventricular dysfunction postradiotherapy may be site specific, based on differential segmental radiotherapy dose received. Methods and Results Transthoracic echocardiograms were performed at baseline, 6 weeks, and 12 months postradiotherapy on 61 chemotherapy‐naïve women with left‐sided breast cancer undergoing tangential breast radiotherapy. Radiation received within basal, mid, and apical regions for the 6 left ventricular walls was quantified from the radiotherapy treatment planning system. Anterior, anteroseptal, and anterolateral walls received the highest radiation doses, while inferolateral and inferior walls received the lowest. There was a progressive increase in the radiation dose received from basal to apical regions. At 6 weeks, the most significant percentage deterioration in strain was seen in the apical region, with greatest reductions in the anterior wall followed by the anteroseptal and anterolateral walls, with a similar pattern persisting at 12 months. There was a within‐patient dose–response association between the segment‐specific percentage deterioration in strain at 6 weeks and 12 months and the radiation dose received. Conclusions Radiotherapy for left‐sided breast cancer causes differential segmental dysfunction, with myocardial segments that receive the highest radiation dose demonstrating greatest strain impairment. Percentage deterioration in strain observed 6 weeks postradiotherapy persisted at 12 months and demonstrated a dose–response relationship with radiotherapy dose received. Radiotherapy‐induced subclinical cardiac dysfunction is of importance because it could be additive to chemotherapy‐related cardiotoxicity in patients with breast cancer. Long‐term outcomes in patients with asymptomatic strain reduction require further investigation.
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Affiliation(s)
- Siddharth J Trivedi
- Department of Cardiology Westmead Hospital Sydney NSW Australia.,Westmead Clinical School University of Sydney NSW Australia
| | - Simon Tang
- South Western Sydney Clinical School University of New South Wales Sydney NSW Australia.,Ingham Institute of Applied Medical Research Sydney NSW Australia.,Central Coast Cancer Therapy Centre Gosford NSW Australia
| | - Karen Byth
- Research and Education Network Western Sydney Local Health DistrictWestmead Hospital Sydney NSW Australia.,NHMRC Clinical Trials CentreUniversity of Sydney NSW Australia
| | - Luke Stefani
- Department of Cardiology Westmead Hospital Sydney NSW Australia
| | - Queenie Lo
- South Western Sydney Clinical School University of New South Wales Sydney NSW Australia.,Department of Cardiology St George Hospital Sydney NSW Australia
| | - James Otton
- South Western Sydney Clinical School University of New South Wales Sydney NSW Australia.,Department of Cardiology Liverpool Hospital Sydney NSW Australia
| | - Michael Jameson
- South Western Sydney Clinical School University of New South Wales Sydney NSW Australia.,Ingham Institute of Applied Medical Research Sydney NSW Australia.,Cancer Therapy Centre Liverpool Hospital Sydney NSW Australia
| | - David Tran
- Department of Cardiology Liverpool Hospital Sydney NSW Australia
| | - Vikneswary Batumalai
- South Western Sydney Clinical School University of New South Wales Sydney NSW Australia.,Ingham Institute of Applied Medical Research Sydney NSW Australia.,Cancer Therapy Centre Liverpool Hospital Sydney NSW Australia
| | - Lois Holloway
- South Western Sydney Clinical School University of New South Wales Sydney NSW Australia.,Ingham Institute of Applied Medical Research Sydney NSW Australia.,Cancer Therapy Centre Liverpool Hospital Sydney NSW Australia
| | - Geoff P Delaney
- South Western Sydney Clinical School University of New South Wales Sydney NSW Australia.,Ingham Institute of Applied Medical Research Sydney NSW Australia.,Cancer Therapy Centre Liverpool Hospital Sydney NSW Australia
| | - Eng-Siew Koh
- South Western Sydney Clinical School University of New South Wales Sydney NSW Australia.,Ingham Institute of Applied Medical Research Sydney NSW Australia.,Cancer Therapy Centre Liverpool Hospital Sydney NSW Australia
| | - Liza Thomas
- Department of Cardiology Westmead Hospital Sydney NSW Australia.,Westmead Clinical School University of Sydney NSW Australia.,South Western Sydney Clinical School University of New South Wales Sydney NSW Australia
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13
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Ananthanarayanan C, Patel K, Wadhawa V, Patel A, Doshi C, Kothari J, Shah P. Midterm outcome of off-pump CABG for severe LV dysfunction-Does LV size and function predict their midterm outcome? J Card Surg 2021; 36:1000-1009. [PMID: 33503684 DOI: 10.1111/jocs.15362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/12/2020] [Accepted: 12/12/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The superiority of surgical revascularization in ischemic cardiomyopathy is established beyond doubt, and off-pump CABG (OP-CABG) is a safe way of revascularization in this high-risk subset. Data on the effect of postoperative ventricular function and size on their midterm outcome is scarce. MATERIALS AND METHODS A retrospective study was done on 211 consecutive patients with severe LV dysfunction who underwent OP-CABG from January 2017 to December 2018. Data were collected from the institutional database. Their operative and midterm outcomes were statistically analyzed. RESULTS The mean age of the cohort was 58.4 ± 8.3 years. An average number of grafts was 3.1 ± 0.8 (cumulative intended number of grafts-3). Operative mortality was 10.9%. Preoperative NYHA class (p < .0001; OR, 19.72) and postoperative IABP insertion (p < .008; OR, 88.75) were independent predictors of operative mortality. The mean follow-up period was 3.14 ± 0.07 years, was 97.4% complete with cardiac mortality of 5.8%. Postoperative LVEF (p = .002; OR, 0.868) and LV dimensions (systole & diastole) (p = .013, OR = 1.182 and p = .036, OR = 1.184, respectively) were independent predictors of midterm mortality. Midterm major adverse cardiovascular event-free survival of operative survivors was 89%. There was no correlation between postoperative LV dimension and NYHA status(p > .05). Myocardial viability was not associated with early (p = .17) or midterm mortality (p = .676). CONCLUSION OP-CABG can achieve complete revascularization in patients with severe LV dysfunction with good midterm outcomes, albeit with high early operative mortality. Postoperative change in LV dimension and EF are predictors of midterm mortality.
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Affiliation(s)
- Chandrasekaran Ananthanarayanan
- Department of CVTS, U. N. Mehta Institute of Cardiology and Research Center (affiliated to BJ Medical College, Ahmedabad), Ahmedabad, Gujarat, India
| | - Kartik Patel
- Department of CVTS, U. N. Mehta Institute of Cardiology and Research Center (affiliated to BJ Medical College, Ahmedabad), Ahmedabad, Gujarat, India
| | - Vivek Wadhawa
- Department of CVTS, U. N. Mehta Institute of Cardiology and Research Center (affiliated to BJ Medical College, Ahmedabad), Ahmedabad, Gujarat, India
| | - Archit Patel
- Department of CVTS, U. N. Mehta Institute of Cardiology and Research Center (affiliated to BJ Medical College, Ahmedabad), Ahmedabad, Gujarat, India
| | - Chirag Doshi
- Department of CVTS, U. N. Mehta Institute of Cardiology and Research Center (affiliated to BJ Medical College, Ahmedabad), Ahmedabad, Gujarat, India
| | - Jignesh Kothari
- Department of CVTS, U. N. Mehta Institute of Cardiology and Research Center (affiliated to BJ Medical College, Ahmedabad), Ahmedabad, Gujarat, India
| | - Pratik Shah
- Department of CVTS, U. N. Mehta Institute of Cardiology and Research Center (affiliated to BJ Medical College, Ahmedabad), Ahmedabad, Gujarat, India
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14
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Sarris-Michopoulos P, Markell E, Macias A, Magarakis M. Off-pump coronary artery bypass in patients with severe LV dysfunction. Is it really more challenging? J Card Surg 2021; 36:1010-1011. [PMID: 33503683 DOI: 10.1111/jocs.15361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 01/11/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Panagiotis Sarris-Michopoulos
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiac Surgery Section, University of Miami, Miami, Florida, USA
| | - Evan Markell
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiac Surgery Section, University of Miami, Miami, Florida, USA
| | - Alejandro Macias
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiac Surgery Section, University of Miami, Miami, Florida, USA
| | - Michael Magarakis
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiac Surgery Section, University of Miami, Miami, Florida, USA
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15
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Subramanian M, Swapna N, Ali AZ, Saggu DK, Yalagudri S, Kishore J, Swamy LN, Narasimhan C. Pre-Treatment Myocardial 18FDG Uptake Predicts Response to Immunosuppression in Patients With Cardiac Sarcoidosis. JACC Cardiovasc Imaging 2021; 14:2008-2016. [PMID: 33454258 DOI: 10.1016/j.jcmg.2020.11.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 11/02/2020] [Accepted: 11/06/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVES This study identified predictors of clinical (CR) and echocardiographic response (ER) following immunosuppressive therapy (IST) in patients with cardiac sarcoidosis (CS). BACKGROUND IST has been the cornerstone of treatment for patients with CS and active myocardial inflammation. However, there are little data to explain the variable response to IST in CS. METHODS Data of 96 consecutive patients with CS from the Granulomatous Myocarditis Registry were analyzed. All patients underwent a 18fluorodeoxy glucose positron emission tomography-computed tomography (18FDG-PET-CT) before initiation of IST. Response was assessed after 4 to 6 months of therapy. CR was defined as an improvement in functional class (New York Heart Association functional class ≥I) and freedom from ventricular arrhythmias and heart failure hospitalizations. ER was defined as an improvement in left ventricular ejection fraction (LVEF) ≥10%. ER was assessed only in patients with a LVEF <50%. Complete responders had no residual myocardial FDG uptake and fulfilled both response criteria. Partial responders fulfilled only 1 response criteria or had residual FDG uptake. Nonresponders did not fulfill either CR or ER criteria. The uptake index (UI) was defined as the product of maximum standardized uptake value and the number of LV segments with abnormal uptake on 18FDG-PET-CT. RESULTS Among 91 patients included in the final analysis, 54.9%, 20.9%, and 24.2% of patients were classified as complete and partial responders and nonresponders, respectively. Cox regression analysis (all responders vs. nonresponders) identified the following as independent predictors of response following immunosuppression: LVEF >40% (hazard ratio: 1.61; 95% confidence interval: 1.06 to 7.69; p = 0.031) and myocardial UI >30 (hazard ratio: 1.28; 95% confidence interval: 1.05 to 6.12; p = 0.010). The final model had a good discriminative power (area under the curve [AUC]: 0.85) and predictive accuracy (sensitivity: 85.5%; specificity: 86.4%). Pre-treatment myocardial UI had a strong positive correlation with change in LVEF following immunosuppression. CONCLUSIONS Pre-treatment 18FDG myocardial uptake was a predictor of CR and ER response to immunosuppression in patients with CS.
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Affiliation(s)
| | - Nalla Swapna
- Department of Cardiology, AIG Hospitals, Hyderabad, India
| | - Abubacker Zakir Ali
- Department of Nuclear Medicine, Basavatarakam Indo American Cancer Hospital and Research Institute, Hyderabad, India
| | | | | | - Jugal Kishore
- Department of Rhuematology, Care Hospitals, Hyderabad, India
| | | | - C Narasimhan
- Department of Cardiology, AIG Hospitals, Hyderabad, India.
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16
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Benny M, Hernandez DR, Sharma M, Yousefi K, Kulandavelu S, Batlahally S, Zambrano R, Chen P, Martinez EC, Schmidt AF, Shehadeh LA, Vasquez-Padron RI, Wu S, Velazquez OC, Young KC. Neonatal hyperoxia exposure induces aortic biomechanical alterations and cardiac dysfunction in juvenile rats. Physiol Rep 2020; 8:e14334. [PMID: 31925922 PMCID: PMC6954121 DOI: 10.14814/phy2.14334] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Supplemental oxygen (O2) therapy in preterm infants impairs lung development, but the impact of O2 on long‐term systemic vascular structure and function has not been well‐explored. The present study tested the hypothesis that neonatal O2 therapy induces long‐term structural and functional alterations in the systemic vasculature, resulting in vascular stiffness observed in children and young adults born preterm. Newborn Sprague‐Dawley rats were exposed to normoxia (21% O2) or hyperoxia (85% O2) for 1 and 3 weeks. A subgroup exposed to 3 weeks hyperoxia was recovered in normoxia for an additional 3 weeks. Aortic stiffness was assessed by pulse wave velocity (PWV) using Doppler ultrasound and pressure myography. Aorta remodeling was assessed by collagen deposition and expression. Left ventricular (LV) function was assessed by echocardiography. We found that neonatal hyperoxia exposure increased vascular stiffness at 3 weeks, which persisted after normoxic recovery at 6 weeks of age. These findings were accompanied by increased PWV, aortic remodeling, and altered LV function as evidenced by decreased ejection fraction, cardiac output, and stroke volume. Importantly, these functional changes were associated with increased collagen deposition in the aorta. Together, these findings demonstrate that neonatal hyperoxia induces early and sustained biomechanical alterations in the systemic vasculature and impairs LV function. Early identification of preterm infants who are at risk of developing systemic vascular dysfunction will be crucial in developing targeted prevention strategies that may improve the long‐term cardiovascular outcomes in this vulnerable population.
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Affiliation(s)
- Merline Benny
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,Batchelor Children's Research Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Diana R Hernandez
- Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Mayank Sharma
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,Batchelor Children's Research Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Keyvan Yousefi
- The Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, Florida.,Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, Florida.,Division of Cardiology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Shathiyah Kulandavelu
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,The Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Sunil Batlahally
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,Batchelor Children's Research Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Ronald Zambrano
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,Batchelor Children's Research Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Pingping Chen
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,Batchelor Children's Research Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Eliana C Martinez
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,The Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Augusto F Schmidt
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,Batchelor Children's Research Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Lina A Shehadeh
- The Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, Florida.,Division of Cardiology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | | | - Shu Wu
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,Batchelor Children's Research Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Omaida C Velazquez
- Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Karen C Young
- Department of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida.,Batchelor Children's Research Institute, University of Miami Miller School of Medicine, Miami, Florida
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17
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Blaes A, Manisty C, Barac A. How to Follow, Manage and Treat Cardiac Dysfunction in Patients With Her2+ Breast Cancer. JACC CardioOncol 2020; 2:661-665. [PMID: 34396278 PMCID: PMC8352336 DOI: 10.1016/j.jaccao.2020.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 08/26/2020] [Accepted: 08/26/2020] [Indexed: 01/01/2023] Open
Affiliation(s)
- Anne Blaes
- University of Minnesota, Division of Hematology/Oncology, Minneapolis, Minnesota, USA
| | - Charlotte Manisty
- University College London and Barts Health NHS Trust, Division of Cardiology, London, United Kingdom
| | - Ana Barac
- MedStar Heart and Vascular Institute, Cardio-Oncology Program, Georgetown University, Washington, DC, USA
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18
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Ha FJ, Agarwal S, Tweed K, Palmer SC, Adams HS, Thillai M, Williams L. Imaging in Suspected Cardiac Sarcoidosis: A Diagnostic Challenge. Curr Cardiol Rev 2020; 16:90-97. [PMID: 31345153 PMCID: PMC7460708 DOI: 10.2174/1573403x15666190725121246] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/05/2019] [Accepted: 07/11/2019] [Indexed: 12/18/2022] Open
Abstract
Cardiac Sarcoidosis (CS) represents a unique diagnostic dilemma. Guidelines have been recently revised to reflect the established role of sophisticated imaging techniques. Trans-thoracic Echocardiography (TTE) is widely adopted for initial screening of CS. Contemporary TTE techniques could enhance detection of subclinical Left Ventricular (LV) dysfunction, particularly LV global longitudinal strain assessment which predicts event-free survival (meta-analysis of 5 studies, hazard ratio 1.28, 95% confidence interval 1.18-1.37, p < 0.0001). However, despite the wide availability of TTE, it has limited sensitivity and specificity for CS diagnosis. Cardiac Magnetic resonance Imaging (CMR) is a crucial diagnostic modality for suspected CS. Presence of late gadolinium enhancement signifies myocardial scar and enables risk stratification. Fluorodeoxyglucose Positron Emission Tomography (FDG-PET) coupled with myocardial perfusion imaging can identify active CS and guide immunosuppressant therapy. Gallium scintigraphy may be considered although FDG-PET is often preferred. While CMR and FDG-PET provide complementary information in CS evaluation, current guidelines do not recommend which imaging modalities are essential in suspected CS and if so, which modality should be performed first. The utility of hybrid imaging combining both advanced imaging modalities in a single scan is currently being explored, although not yet widely available. In view of recent, significant advances in cardiac imaging techniques, this review aims to discuss changes in guidelines for CS diagnosis, the role of various cardiac imaging modalities and the future direction in CS.
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Affiliation(s)
- Francis J Ha
- St Vincent's Hospital Melbourne, Victoria, Australia
| | - Sharad Agarwal
- Royal Papworth Hospital, NHS Foundation Trust, Cambridge, CB2 0AY, United Kingdom
| | - Katharine Tweed
- Royal Papworth Hospital, NHS Foundation Trust, Cambridge, CB2 0AY, United Kingdom
| | - Sonny C Palmer
- St Vincent's Hospital Melbourne, Victoria, Australia.,Department of Medicine, The University of Melbourne, Victoria, Australia
| | - Heath S Adams
- St Vincent's Hospital Melbourne, Victoria, Australia
| | - Muhunthan Thillai
- Royal Papworth Hospital, NHS Foundation Trust, Cambridge, CB2 0AY, United Kingdom.,Department of Medicine University of Cambridge, Cambridge, CB2 0AY, United Kingdom
| | - Lynne Williams
- Royal Papworth Hospital, NHS Foundation Trust, Cambridge, CB2 0AY, United Kingdom
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19
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Klein HU. Diabetes Mellitus: Merely "Comorbidity" or an Important Risk Factor? JACC Clin Electrophysiol 2020; 6:559-61. [PMID: 32439041 DOI: 10.1016/j.jacep.2019.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 12/27/2019] [Indexed: 12/26/2022]
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Lavall D, Kuprat LK, Kandels J, Stöbe S, Hagendorff A, Laufs U. Left ventricular mechanical dispersion in flow-gradient patterns of severe aortic stenosis with narrow QRS complex. Int J Cardiovasc Imaging 2020; 36:605-614. [PMID: 31933102 PMCID: PMC7125243 DOI: 10.1007/s10554-019-01754-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/17/2019] [Indexed: 01/10/2023]
Abstract
Patients with severe aortic stenosis are classified according to flow-gradient patterns. We investigated whether left ventricular (LV) mechanical dispersion, a marker of dyssynchrony and predictor of mortality, is associated with low-flow status in aortic stenosis. 316 consecutive patients with aortic stenosis and QRS duration < 120 ms were included in the retrospective analysis. Patients with severe aortic stenosis (aortic valve area ≤ 1.0 cm2) were classified as normal-flow (NF; stroke volume index > 35 ml/m2) high-gradient (HG; mean transvalvular gradient ≥ 40 mmHg) (n = 79), NF low-gradient (LG) (n = 62), low-flow (LF) LG ejection fraction (EF) ≥ 50% (n = 57), and LF LG EF < 50% (n = 23). Patients with moderate aortic stenosis (aortic valve area 1.5–1.0 cm2; n = 95) served as comparison group. Mechanical dispersion (calculated as standard deviation of time from Q/S onset on electrocardiogram to peak longitudinal strain in 17 left ventricular segments) was similar in patients with NF HG (49.4 ± 14.7 ms), NF LG (43.5 ± 12.9 ms), LF LG EF ≥ 50% (47.2 ± 16.3 ms) and moderate aortic stenosis (44.2 ± 15.7 ms). In patients with LF LG EF < 50%, mechanical dispersion was increased (60.8 ± 20.7 ms, p < 0.05 vs. NF HG, NF LG, LF LG EF ≥ 50% and moderate AS). Mechanical dispersion correlated with global longitudinal strain (r = 0.1354, p = 0.0160) and heart rate (r = 0.1587, p = 0.0047), but not with parameters of aortic stenosis. Mechanical dispersion was similar among flow-gradient subgroups of severe aortic stenosis with preserved LVEF, but increased in patients with low-flow low-gradient and reduced LVEF. These findings indicate that mechanical dispersion is rather a marker of systolic myocardial dysfunction than of aortic stenosis.
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Affiliation(s)
- Daniel Lavall
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany.
| | - Linn Kristin Kuprat
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany
| | - Joscha Kandels
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany
| | - Stephan Stöbe
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany
| | - Andreas Hagendorff
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany
| | - Ulrich Laufs
- Klinik und Poliklinik für Kardiologie, Universitätsklinikum Leipzig, Liebigstrasse 20, 04103, Leipzig, Germany
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Shenthar J, Padmanabhan D, Banavalikar B, Parvez J, Vallapil SP, Singha I, Tripathi V. Incidence, predictors, and gradation of upper extremity venous obstruction after transvenous pacemaker implantation. Indian Heart J 2019; 71:123-125. [PMID: 31280823 PMCID: PMC6620414 DOI: 10.1016/j.ihj.2019.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/12/2018] [Accepted: 02/18/2019] [Indexed: 12/04/2022] Open
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Militaru A, Zus S, Cimpean AM, Iurciuc S, Matusz P, Iurciuc M, Lighezan D, Militaru M. Early Diagnosis of Cardiotoxicity in Patients Undergoing Chemotherapy for Acute Lymphoblastic Leukemia. Anticancer Res 2019; 39:3255-3264. [PMID: 31177176 DOI: 10.21873/anticanres.13467] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/21/2019] [Accepted: 05/23/2019] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Chemotherapy-induced cardiotoxicity may be observed during treatment or may cause severe cardiac failure as the main cause of death, even several years after therapy implementation. Herein, the aim was to establish the early diagnosis of cardiotoxicity through the periodic evaluation of the left ventricular (LV) and vascular remodeling parameters, in patients with acute lymphoblastic leukemia (ALL). MATERIALS AND METHODS The study population included 35 patients diagnosed with ALL, evaluated before and 3 months after starting chemotherapy, measuring systolic and diastolic parameters of the LV and intima-media thickness (IMT), arterial stiffness aortic pulse wave velocity (PWVAo) and ankle-brachial index (ABI). RESULTS After the first 2 cycles of chemotherapy, all patients experienced a drop in LV ejection fraction (LVEF) (p<0.001), and 12 patients suffered a decrease of LVEF<50%. The ABI (p<0.05) and the global longitudinal strain (GLS) (p<0.001) decreased, while IMT and PWVAo (p<0.001) increased, proving a subclinical deterioration of the LV function and vascular remodeling. CONCLUSION Assessment of cardiovascular risk factors before chemotherapy initiation in ALL patients may be helpful for an early diagnosis of chemotherapy-induced cardiotoxicity, thus contributing to early treatment and a subsequent decrease of death caused by such cardiovascular complications.
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Affiliation(s)
- Anda Militaru
- Medical Semiology I, Department of Internal Medicine I, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Sebastian Zus
- Cardiovascular Disease Institute, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Anca Maria Cimpean
- Department of Microscopic Morphology/Histology, Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Stela Iurciuc
- Department of Cardiology, Preventive Medicine and Cardiovascular Rehabilitation, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Petru Matusz
- Department of Anatomy and Embriology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Mircea Iurciuc
- Department of Cardiology, Preventive Medicine and Cardiovascular Rehabilitation, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Daniel Lighezan
- Medical Semiology I, Department of Internal Medicine I, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Marius Militaru
- Department of Neuroscience - Municipal Emergency Hospital, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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Verma B, Singh A. Comparison of Contrast Enhanced Low-Dose Dobutamine Stress Echocardiography with 99mTc-Sestamibi Single-Photon Emission Computed Tomography in Assessment of Myocardial Viability. Open Access Maced J Med Sci 2019; 7:1287-1292. [PMID: 31110571 PMCID: PMC6514354 DOI: 10.3889/oamjms.2019.254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/30/2019] [Accepted: 03/31/2019] [Indexed: 01/17/2023] Open
Abstract
INTRODUCTION: Dobutamine stress echocardiography (DSE) and myocardial perfusion scan are the commonly used modalities to detect viable myocardium. DSE is comparatively cheaper and widely available but has a lower sensitivity. AIM: We aimed to compare contrast-enhanced low-dose dobutamine echocardiography (LDDE) and gated 99mTc-sestamibi myocardial perfusion scan (MPS) for the degree of agreement in the detection of myocardial viability. METHODS: We studied 850 left ventricular segments from 50 patients (42 men, mean age 55.5 years), with coronary artery disease and left ventricular systolic dysfunction (ejection fraction < 40%), using contrast-enhanced LDDE and 99mTc-Sestamibi gated SPECT. Segments were assessed for the presence of viability by both techniques and head to head comparisons were made. RESULTS: Adequate visualisation increased from 80% in unenhanced segments to 96% in contrast-enhanced segments. Of the total 850 segments studied, 290 segments (34.1%) had abnormal contraction (dysfunctional). Among these, 138 were hypokinetic (16.2% of total), 144 were severely hypokinetic or akinetic (16.9% of total), and 8 segments were dyskinetic or aneurismal (0.9% of total). Among 151 segments considered viable by technetium, 137 (90.7%) showed contractile improvement with dobutamine; in contrast, only 8 of the 139 segments (5.7%) considered nonviable by technetium had a positive dobutamine response. The per cent of agreement between technetium uptake and a positive response to dobutamine was 78.6% with kappa = 0.63, suggestive of a substantial degree of agreement between the two modalities. CONCLUSION: Use of contrast-enhanced LDDE significantly increased the adequate endocardial border visualisation. Furthermore, this study showed a strong degree of agreement between the modalities in the detection of viable segments. So, contrast-enhanced LDDE appears to be a safe and comparable alternative to MPS in myocardial viability assessment.
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Affiliation(s)
- Bhupendra Verma
- Department of Cardiology, Ujala Hospital, Kashipur, UK, India
| | - Amrita Singh
- Department of Nephrology, Ujala Hospital, Kashipur, UK, India
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Wang Q, Tan K, Xia H, Gao Y. Left ventricular metabolic remodeling and accompanied dysfunction in type 2 diabetic patients: A 3D speckle tracking analysis. Echocardiography 2019; 36:486-494. [PMID: 30632188 DOI: 10.1111/echo.14248] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/20/2018] [Accepted: 12/07/2018] [Indexed: 01/04/2023] Open
Abstract
PURPOSES The purposes of our study were to determine the risk factors related to metabolic left ventricular remodeling (LVR) in type 2 diabetes mellitus (T2DM) patients and to assess the LV function with different geometry in such population. METHODS Seventy-eight T2DM patients with normal 2D-LVEF (≥55%) were enrolled and divided into two groups with LV normal geometry (LVN) and with LV remodeling (LVR). The control group was composed of forty age- and sex-matched healthy individuals with LVN. A multifactor logistic regression was used to determine the risk factors for LVR, and their diagnostic values were evaluated using the area under the ROC curves (AUC). Three-dimensional speckle tracking echocardiography (3DSTE) was used to measure LV global longitudinal strain (GLS), global circumferential strain (GCS), global area strain (GAS), and global radial strain (GRS). RESULTS Fasting plasma glucose (FPG), hyperlipidemia, and BMI were independently associated with LVR in T2DM patients, and the AUC values were 0.699, 0.697, and 0.732, respectively. The T2DM patients with LVN showed significantly lower GLS than the controls (P < 0.05), whereas the T2DM patients with LVR showed significantly lower GLS, GCS, GAS, and GRS than the T2DM patients with LVN (all P < 0.01). Additionally, GLS, GAS, and GRS values decreased significantly in the T2DM patients with LV hypertrophy than in those with LV concentric remodeling (all P < 0.05). CONCLUSIONS The routine echocardiography and 3DSTE could be used in combining way to detect the metabolic LV remodeling and accompanied dysfunction in T2DM patients.
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Affiliation(s)
- Qingqing Wang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Kaibin Tan
- Department of Ultrasound, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongmei Xia
- Department of Ultrasound, Xinqiao Hospital, The Third Military Medical University, Chongqing, China
| | - Yunhua Gao
- Department of Ultrasound, Xinqiao Hospital, The Third Military Medical University, Chongqing, China
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Ghias AAP, Bhayani S, Gemmel DJ, Garg SK. Rapidly progressive dyspnea in gastrointestinal stromal tumor (GIST) with imatinib cardiac toxicity. J Community Hosp Intern Med Perspect 2018; 8:87-91. [PMID: 29686796 PMCID: PMC5906758 DOI: 10.1080/20009666.2018.1454787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 03/16/2018] [Indexed: 02/08/2023] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are rare and current estimates range from 4,000 to 6,000 number of GIST cases in the USA annually. Imatinib, a tyrosine kinase inhibitor, has shown a survival benefit in GISTs, and the presence of KIT mutation status is predictive of response. The current case discusses rapidly progressive dyspnea and heart failure in an elderly male with metastatic GIST who was started on imatinib. Although reported as a rare and sporadic side effect of imatinib, the current case illustrates rapidity and the clinical significance of cardiotoxicity, with onset at 2 weeks. Cases of imatinib-induced cardiotoxicity can range from being mild ventricular dysfunction to overt heart failure. Prior to starting imatinib, our patient had a history of hypertension. He subsequently ended up developing heart failure as acknowledged by the echocardiogram (ECHO). In general, elderly with preexisting cardiovascular comorbidity are at greater risk. The goal in such situations is immediate discontinuation or reduction of the imatinib dosage. The case prompts for awareness of imatinib cardiotoxicity. Moreover, a pretreatment cardiac assessment along with monitoring throughout therapy is therefore advisable. Also, imatinib-induced cardiotoxicity should be differentiated from imatinib-associated fluid retention, in which ECHO findings can be normal. This case report raises the concern for accelerated cardiotoxicity profile of imatinib. Further prospective studies with multidisciplinary input are needed to establish this association further.
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Affiliation(s)
- Adnan Asif Parvez Ghias
- Department of Internal Medicine, St. Elizabeth Health Center, Youngstown, OH, USA.,Department of Internal Medicine, Northeastern Ohio Medical University, Rootstown, OH, USA
| | - Shahzeem Bhayani
- Department of Internal Medicine, St. Elizabeth Health Center, Youngstown, OH, USA.,Department of Internal Medicine, Northeastern Ohio Medical University, Rootstown, OH, USA
| | - David J Gemmel
- Department of Research, St. Elizabeth Health Center, Youngstown, OH, USA
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Abstract
PURPOSE OF REVIEW We aim to summarize the effect of cancer therapy-related cardiotoxicity on the development of left ventricular (LV) dysfunction. RECENT FINDINGS We discuss commonly used cancer therapeutics that have the potential for both acute and delayed cardiotoxicity. LV dysfunction from cancer therapies may be found by routine cardiac imaging prior to clinical manifestations of heart failure (HF) and we discuss the current multi-modality approaches for early detection of toxicity with the use of advanced echocardiographic parameters including strain techniques. Further, we discuss the role of biomarkers for detection of LV dysfunction from cancer therapies. Current approaches monitoring and treating LV dysfunction related to cancer therapy-related cardiotoxicity include addressing modifiable cardiovascular risk factors especially hypertension and early initiation of neurohormonal blockade (NHB) with disease-modifying beta-blockers and renin-angiotensin-aldosterone system (RAAS) inhibitors. Once LV dysfunction is identified, traditional ACC/AHA guideline-directed therapy is employed. Further, we highlight the use of advanced heart failure therapies including mechanical resynchronization devices, the use of durable ventricular assist devices, and cardiac transplantation as increasingly employed modalities for treatment of severe LV dysfunction and advanced heart failure in the cardio-oncology population. This review seeks to highlight the importance of early detection, treatment, and prevention of LV dysfunction from cancer therapy-related cardiotoxicity.
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Affiliation(s)
- Suparna C Clasen
- Cardio-oncology in the Division of Cardiology, Hospital of the University of Pennsylvania, 3400 Civic Center Boulevard, South Pavilion 11th Floor, Philadelphia, PA, 19104, USA.
| | - Joyce W Wald
- Advanced Heart Failure in the Division of Cardiology, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA
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27
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Kinomura Y, Tanaka T, Aoyama T, Hatasa M, Minatoguchi S, Iwasa M, Yamada Y, Nawa T, Kanamori H, Kawasaki M, Esaka Y, Uno B, Nishigaki K, Minatoguchi S. Endogenous Adenosine May Be Related to Left Ventricular Dysfunction, Dilation, and Wall Thinning in Patients With Heart Disease. Circ J 2018; 82:1319-1326. [PMID: 29491324 DOI: 10.1253/circj.cj-17-0972] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The role of endogenous adenosine in cardiac patients is still unclear, so we investigated the relationship between the plasma adenosine concentration and left ventricular (LV) function, LV dilation and LV wall thinning in cardiac patients.Methods and Results:In 97 cardiac patients, with angina pectoris, old myocardial infarction, dilated or hypertrophic cardiomyopathy, and valvular heart disease, plasma adenosine concentrations were measured using the LC-MS/MS system, and the LV function, LV end-diastolic dimension (LVDd), LV posterior wall thickness (LVPWth), and interventricular septum thickness (IVSth) were assessed by echocardiography. The plasma adenosine concentration was significantly higher in patients with a LV ejection fraction (EF), an indicator of the LV systolic function, <47% compared with those with LVEF ≥47% (P=0.027). There was no difference between the plasma adenosine concentration and E/e', an indicator of LV diastolic function. The plasma adenosine concentration was significantly higher in patients with LVDd ≥50 mm than in those with LVDd <50 mm (P=0.030). The plasma adenosine concentration was inversely correlated with IVSth (P=0.003) and LVPWth (P=0.0007). The plasma adenosine concentration was significantly higher in patients with IVSth <8 mm than in those with IVSth ≥8 mm (P=0.015), and was significantly higher in patients with LVPWth <8 mm than in those with LVPWth ≥8 mm (P=0.020). CONCLUSIONS Endogenous adenosine may be related to LV dysfunction, dilation, and wall thinning in cardiac patients.
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Affiliation(s)
- Yujiro Kinomura
- Department of Cardiology, Gifu University Graduate School of Medicine
| | - Toshiki Tanaka
- Department of Cardiology, Gifu University Graduate School of Medicine
| | - Takuma Aoyama
- Department of Cardiology, Gifu University Graduate School of Medicine
| | - Masanori Hatasa
- Department of Cardiology, Gifu University Graduate School of Medicine
| | | | - Masamitsu Iwasa
- Department of Cardiology, Gifu University Graduate School of Medicine
| | - Yoshihisa Yamada
- Department of Cardiology, Gifu University Graduate School of Medicine
| | - Takahide Nawa
- Department of Cardiology, Gifu University Graduate School of Medicine
| | | | - Masanori Kawasaki
- Department of Cardiology, Gifu University Graduate School of Medicine
| | - Yukihiro Esaka
- Laboratory of Pharmaceutical Analytical Chemistry, Gifu Pharmaceutical University
| | - Bunji Uno
- Laboratory of Pharmaceutical Analytical Chemistry, Gifu Pharmaceutical University
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Hayashida K, Yamamoto M. Transapical Approach: Learn From the Past, Move Toward the Future. JACC Cardiovasc Interv 2017; 10:2423-2425. [PMID: 29217005 DOI: 10.1016/j.jcin.2017.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 10/17/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Kentaro Hayashida
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.
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29
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Wen JJ, Porter C, Garg NJ. Inhibition of NFE2L2-Antioxidant Response Element Pathway by Mitochondrial Reactive Oxygen Species Contributes to Development of Cardiomyopathy and Left Ventricular Dysfunction in Chagas Disease. Antioxid Redox Signal 2017; 27:550-566. [PMID: 28132522 PMCID: PMC5567598 DOI: 10.1089/ars.2016.6831] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIMS We investigated the effects of mitochondrial reactive oxygen species (mtROS) on nuclear factor (erythroid 2)-like 2 (NFE2L2) transcription factor activity during Trypanosoma cruzi (Tc) infection and determined whether enhancing the mtROS scavenging capacity preserved the heart function in Chagas disease. RESULTS C57BL/6 wild type (WT, female) mice infected with Tc exhibited myocardial loss of mitochondrial membrane potential, complex II (CII)-driven coupled respiration, and ninefold increase in mtROS production. In vitro and in vivo studies showed that Tc infection resulted in an ROS-dependent decline in the expression, nuclear translocation, antioxidant response element (ARE) binding, and activity of NFE2L2, and 35-99% decline in antioxidants' (gamma-glutamyl cysteine synthase [γGCS], heme oxygenase-1 [HO1], glutamate-cysteine ligase modifier subunit [GCLM], thioredoxin (Trx), glutathione S transferase [GST], and NAD(P)H dehydrogenase, quinone 1 [NQO1]) expression. An increase in myocardial and mitochondrial oxidative adducts, myocardial interventricular septum thickness, and left ventricle (LV) mass, a decline in LV posterior wall thickness, and disproportionate synthesis of collagens (COLI/COLIII), αSMA, and SM22α were noted in WT.Tc mice. Overexpression of manganese superoxide dismutase (MnSOD) in cultured cells (HeLa or cardiomyocytes) and MnSODtg mice preserved the NFE2L2 transcriptional activity and antioxidant/oxidant balance, and cardiac oxidative and fibrotic pathology were significantly decreased in MnSODtg.Tc mice. Importantly, echocardiography finding of a decline in LV systolic (stroke volume, cardiac output, ejection fraction) and diastolic (early/late peak filling ratio, myocardial performance index) function in WT.Tc mice was abolished in MnSODtg.Tc mice. Innovation and Conclusion: The mtROS inhibition of NFE2L2/ARE pathway constitutes a key mechanism in signaling the fibrotic gene expression and evolution of chronic cardiomyopathy. Preserving the NFE2L2 activity arrested the mitochondrial and cardiac oxidative stress, cardiac fibrosis, and heart failure in Chagas disease. Antioxid. Redox Signal. 27, 550-566.
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Affiliation(s)
- Jake Jianjun Wen
- 1 Department of Microbiology and Immunology, University of Texas Medical Branch (UTMB) , Galveston, Texas
| | - Craig Porter
- 2 Metabolism Unit, Shriners Hospital for Children , Galveston, Texas.,3 Department of Surgery, University of Texas Medical Branch (UTMB) , Galveston, Texas
| | - Nisha Jain Garg
- 1 Department of Microbiology and Immunology, University of Texas Medical Branch (UTMB) , Galveston, Texas.,4 Department of Pathology, University of Texas Medical Branch (UTMB) , Galveston, Texas.,5 Institute for Human Infections and Immunity, University of Texas Medical Branch (UTMB) , Galveston, Texas
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Basra S, Szerlip M. Transcatheter Aortic Valve Replacement and MitraClip to Reverse Heart Failure. Interv Cardiol Clin 2017; 6:373-386. [PMID: 28600091 DOI: 10.1016/j.iccl.2017.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Valvular heart diseases such as aortic stenosis and mitral regurgitation are often associated with heart failure, which in turn increases patients' Surgical Thoracic Society (STS) score. A high STS score means the patient is high risk for surgical aortic valve replacement and mitral valve repair/replacement. Transcatheter aortic valve replacement and percutaneous mitral valve repair offer a minimally invasive alternative for the treatment of valvular heart disease in patients with severe heart failure. We aim to review the current evidence on the safety, efficacy, and outcomes of these devices in patients with severe heart failure.
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Affiliation(s)
- Sukhdeep Basra
- Department of Cardiology, The Heart Hospital Baylor Plano, 110 Allied Drive, Plano, TX 75093, USA
| | - Molly Szerlip
- Department of Cardiology, The Heart Hospital Baylor Plano, 110 Allied Drive, Plano, TX 75093, USA.
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31
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Srivatsava MK, Indirani M, Sathyamurthy I, Sengottuvelu G, Jain AS, Shelley S. Role of PET-CT in the assessment of myocardial viability in patients with left ventricular dysfunction. Indian Heart J 2016; 68:693-699. [PMID: 27773409 PMCID: PMC5079123 DOI: 10.1016/j.ihj.2015.11.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 10/31/2015] [Accepted: 11/10/2015] [Indexed: 11/18/2022] Open
Abstract
AIM Role of PET-CT in assessment of myocardial viability in patients with LV dysfunction. METHODS This prospective study included 120 patients with LV dysfunction who underwent 99mTechnetium-Sestamibi myocardial perfusion SPECT-CT and 18FFDG cardiac PET-CT. They also underwent serial echocardiography and coronary angiography along with myocardial perfusion and FDG PET study. RESULTS Thirty-three patients had single vessel disease, 48 had triple vessel disease, and rest had double vessel disease. Among 786 segments, matched defects were seen in 432 (55%) and mismatched defects in 354 (45%) segments. 78 patients were surgically managed, and 42 were medically managed. The change in LVEF after surgical management was statistically significant compared to medical management. CONCLUSION Viability assessment should be performed in patients who present after 12h of acute myocardial infarction or with LV dysfunction due to ischemic heart disease to decide upon appropriate surgical management.
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Affiliation(s)
| | - M Indirani
- Department of Nuclear Medicine and PET-CT, Apollo Main Hospital, Chennai, India
| | - I Sathyamurthy
- Interventional Cardiologist, Dept of Cardiology, Apollo Main Hospital, 21, Greams Lane, Chennai 600006, India.
| | - G Sengottuvelu
- Interventional Cardiologist, Dept of Cardiology, Apollo Main Hospital, 21, Greams Lane, Chennai 600006, India
| | - Avani S Jain
- Department of Nuclear Medicine and PET-CT, Apollo Main Hospital, Chennai, India
| | - S Shelley
- Department of Nuclear Medicine and PET-CT, Apollo Main Hospital, Chennai, India
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Abstract
Fever with rash is one of the most common causes of referral to a dermatologist. A plethora of conditions need to be considered in the differential diagnosis. They may be broadly classified into infectious causes, drug reactions, and autoimmune disorders. Here we present a rare case of rickettsial fever with cardiac involvement in an elderly male patient with no comorbidities.
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Affiliation(s)
- Snehal Balvant Lunge
- Department of Dermatology, Jawaharlal Nehru Medical College, Belgaum, Karnataka, India
| | - Vaibhav Patil
- Department of Cardiology, Jawaharlal Nehru Medical College, Belgaum, Karnataka, India
| | - Sameer Ambar
- Department of Cardiology, Jawaharlal Nehru Medical College, Belgaum, Karnataka, India
| | - Vishwas Naik
- Department of Dermatology, Jawaharlal Nehru Medical College, Belgaum, Karnataka, India
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Niu MC, Morris SA, Krenek M, DE LA Uz CM, Pedroza C, Miyake CY, Kim JJ, Valdés SO. Reassessing Risk Factors in Pediatric Patients With Pacemakers Implanted for Atrioventricular Block: The Impact of Nonsustained Ventricular Tachycardia. J Cardiovasc Electrophysiol 2016; 27:471-9. [PMID: 27074776 DOI: 10.1111/jce.12897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 11/04/2015] [Accepted: 12/11/2015] [Indexed: 12/01/2022]
Abstract
INTRODUCTION In pediatric patients with pacemakers implanted for atrioventricular block (AVB), nonsustained ventricular tachycardia (NSVT) detected during routine surveillance is a finding of unknown significance. We sought to describe the incidence of NSVT and determine if there was an association between NSVT and adverse outcomes in these patients. METHODS AND RESULTS This is a single-center retrospective study of 136 patients (1971-2013) with pacemakers implanted for advanced and complete AVB. EXCLUSION CRITERIA structural heart disease, diagnoses of myocarditis, cardiomyopathy or channelopathy preceding AVB diagnosis, and sustained or polymorphic ventricular tachycardia (VT) as the first occurring arrhythmia after pacemaker implant. During median follow-up of 11.6 years (IQR 4.3 years, 17 years), 14 (10%) patients had NSVT. There were 6 (4.4%) deaths. Overall, Kaplan-Meier 20-year survival from time of implant was 93%. By univariate analysis, earlier mortality was associated with NSVT (P = 0.010), sustained left ventricular (LV) dysfunction (P = 0.004), maternal autoantibodies (P = 0.017), and acquired AVB (P = 0.049). By multivariate analysis, earlier mortality was associated with NSVT (HR: 5.39 [95% CI: 1.02-28.41]; P = 0.047) and sustained LV dysfunction (HR: 10.24 [95% CI: 1.83-57.32]; P = 0.008). CONCLUSIONS In children with pacemakers implanted for AVB, NSVT is not uncommon and may be associated with increased mortality. Persistent LV dysfunction may also be a potential factor associated with death. Closer follow-up should be considered in patients with these findings. Large, multicenter studies should be considered to confirm these findings and identify risk stratification methods for this unique patient population.
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Affiliation(s)
- Mary C Niu
- Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine Houston, Texas, USA.,Oklahoma Children's Heart Center, Oklahoma University Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Shaine A Morris
- Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine Houston, Texas, USA
| | - Michele Krenek
- Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine Houston, Texas, USA
| | - Caridad M DE LA Uz
- Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine Houston, Texas, USA
| | - Claudia Pedroza
- Center for Clinical Research and Evidence-Based Medicine, Department of Pediatrics, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Christina Y Miyake
- Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine Houston, Texas, USA
| | - Jeffrey J Kim
- Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine Houston, Texas, USA
| | - Santiago O Valdés
- Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine Houston, Texas, USA
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Tan AY, Hu YL, Potfay J, Kaszala K, Howren M, Sima AP, Shultz M, Koneru JN, Ellenbogen KA, Huizar JF. Impact of ventricular ectopic burden in a premature ventricular contraction-induced cardiomyopathy animal model. Heart Rhythm 2015; 13:755-61. [PMID: 26586453 DOI: 10.1016/j.hrthm.2015.11.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND Frequent premature ventricular contractions (PVCs) have been associated with PVC-induced cardiomyopathy (CM) in some patients. OBJECTIVE The purpose of this study was to understand the cardiac consequences of different PVC burdens and the minimum burden required to induce left ventricular (LV) dysfunction. METHODS Right ventricular apical PVCs at a coupling interval of 240 ms were introduced at different PVC burdens in 9 mongrel canines. A stepwise increase in PVC burden was implemented every 8 weeks from 0% (baseline), 7%, 14%, 25%, 33% to 50% using our premature pacing algorithm. Echocardiogram and 24-hour Holter were obtained at 4- and 8-week period for each PVC burden with a single blinded reader assessing all echocardiographic parameters including those assessed by speckle tracking imaging (EchoPAC workstation, General Electric). CM was defined as left ventricular ejection fraction (LVEF) <50% or LVEF drop >10% points. Interleukin-6 and pro-brain natriuretic peptide levels were obtained at the end of each PVC burden. RESULTS The mean LVEF (mean heart rate) at 8 weeks for each PVC burden (0%, 7%, 14%, 33%, and 50%) were 57% ± 2.9% (85 ± 13 beats/min), 54.4% ± 3% (81 ± 10 beats/min), 53.3% ± 5% (77 ± 12 beats/min), 51.1% ± 4.2% (79 ± 14 beats/min), 47.7% ± 3.8% (80 ± 14 beats/min), and 44.7% ± 1.9% (157 ± 43 beats/min). PVC-induced CM was present in 11.1%, 44.4%, and 100% of animals with 25%, 33%, and 50% PVC burden, respectively. E/A ratio and radial strain decreased while left atrial size increased beyond 33% PVC burden. No changes in pro-brain natriuretic peptide and interleukin-6 levels were noted at any PVC burden. CONCLUSION LV systolic function (LVEF and radial strain) declined linearly as PVC burden increased. PVC-induced CM developed in some canines with 25% and 33% PVC burden, but developed in all animals with 50% PVC burden.
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Affiliation(s)
- Alex Y Tan
- Cardiology Division, Hunter Holmes McGuire VA Medical Center, Richmond, Virginia; Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Yuhning L Hu
- Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Jonathan Potfay
- Cardiology Division, Hunter Holmes McGuire VA Medical Center, Richmond, Virginia; Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Karoly Kaszala
- Cardiology Division, Hunter Holmes McGuire VA Medical Center, Richmond, Virginia; Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Maureen Howren
- Cardiology Division, Hunter Holmes McGuire VA Medical Center, Richmond, Virginia
| | - Adam P Sima
- Department of Biostatistics, Virginia Commonwealth University, Richmond, Virginia
| | - Michael Shultz
- Cardiology Division, Hunter Holmes McGuire VA Medical Center, Richmond, Virginia
| | - Jayanthi N Koneru
- Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Kenneth A Ellenbogen
- Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia
| | - Jose F Huizar
- Cardiology Division, Hunter Holmes McGuire VA Medical Center, Richmond, Virginia; Cardiology Division/Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia.
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Wada Y, Aiba T, Tsujita Y, Itoh H, Wada M, Nakajima I, Ishibashi K, Okamura H, Miyamoto K, Noda T, Sugano Y, Kanzaki H, Anzai T, Kusano K, Yasuda S, Horie M, Ogawa H. Practical applicability of landiolol, an ultra-short-acting β1-selective blocker, for rapid atrial and ventricular tachyarrhythmias with left ventricular dysfunction. J Arrhythm 2015; 32:82-8. [PMID: 27092187 PMCID: PMC4823575 DOI: 10.1016/j.joa.2015.09.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/15/2015] [Accepted: 09/08/2015] [Indexed: 12/18/2022] Open
Abstract
Background Landiolol effectively controls rapid heart rate in atrial fibrillation or flutter (AF/AFL) patients with left ventricular (LV) dysfunction. However, predicting landiolol Responders and Non-Responders and patients who will experience adverse effects remains a challenge. The aim of this study was to clarify the potential applicability of landiolol for rapid AF/AFL and refractory ventricular tachyarrhythmias (VTs) in patients with heart failure. Methods A total of 39 patients with AF/AFL with ventricular response ≥120 bpm and 12 VTs were retrospectively enrolled. Landiolol Responders for rapid AF/AFL were defined as patients whose ventricular response was suppressed to less than 110 bpm or decreased by ≥20% from the initial heart rate after administration of landiolol. Responders for VTs were defined as patients with no recurrent VTs during the 24 h after the initiation of landiolol. Results For AF/AFL, 29 patients (74%) were Responders. In nine patients (31%), AF was spontaneously terminated after starting landiolol. Eight Non-Responders (80%) needed to have AF terminated by cardioversion. Left ventricular ejection fraction (LVEF) at baseline was significantly associated with landiolol efficacy. For VTs, seven patients (58%) were Responders, and smaller LV diastolic and systolic diameters were associated with landiolol efficacy. Hypotension after landiolol treatment occurred in 5 of 51 patients, and lower LV systolic function was associated with the development of adverse events. Conclusions Landiolol is effective in patients with heart failure not only due to rapid AF/AFL but also due to VTs. However, preserved LVEF is important for efficacy and safety in landiolol treatment.
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Affiliation(s)
- Yuko Wada
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan; Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Takeshi Aiba
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yasuyuki Tsujita
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Hideki Itoh
- Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Mitsuru Wada
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Ikutaro Nakajima
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kohei Ishibashi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Hideo Okamura
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Koji Miyamoto
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Takashi Noda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yasuo Sugano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Hideaki Kanzaki
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Toshihisa Anzai
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kengo Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Satoshi Yasuda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Minoru Horie
- Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Hisao Ogawa
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
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El-Mas MM, Abdel-Rahman AA. Estrogen modulation of the ethanol-evoked myocardial oxidative stress and dysfunction via DAPK3/Akt/ERK activation in male rats. Toxicol Appl Pharmacol. 2015; Jun 23. [Epub ahead of print]. [PMID: 26111663 DOI: 10.1016/j.taap.2015.06.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 06/08/2015] [Accepted: 06/20/2015] [Indexed: 11/22/2022]
Abstract
Evidence suggests that male rats are protected against the hypotensive and myocardial depressant effects of ethanol compared with females. We investigated whether E2 modifies the myocardial and oxidative effects of ethanol in male rats. Conscious male rats received ethanol (0.5, 1 or 1.5g/kg i.v.) 30-min after E2 (1μg/kg i.v.) or its vehicle (saline), and hearts were collected at the conclusion of hemodynamic measurements for ex vivo molecular studies. Ethanol had no effect in vehicle-treated rats, but it caused dose-related reductions in LV developed pressure (LVDP), end-diastolic pressure (LVEDP), rate of rise in LV pressure (dP/dtmax) and systolic (SBP) and diastolic (DBP) blood pressures in E2-pretreated rats. These effects were associated with elevated (i) indices of reactive oxygen species (ROS), (ii) malondialdehyde (MDA) protein adducts, and (iii) phosphorylated death-associated protein kinase-3 (DAPK3), Akt, and extracellular signal-regulated kinases (ERK1/2). Enhanced myocardial anti-oxidant enzymes (heme oxygenase-1, catalase and aldehyde dehydrogenase 2) activities were also demonstrated. In conclusion, E2 promotes ethanol-evoked myocardial oxidative stress and dysfunction in male rats. The present findings highlight the risk of developing myocardial dysfunction in men who consume alcohol while receiving E2 for specific medical conditions.
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Chitnis N, Vooturi S, Hygriv Rao B. Sudden cardiac death early after ST elevation myocardial infarction with and without severe left ventricular dysfunction. Indian Heart J 2014; 66:569-73. [PMID: 25634386 DOI: 10.1016/j.ihj.2014.10.416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/01/2014] [Accepted: 10/17/2014] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION There is high incidence of SCD in the early period following STEMI. We compared the temporal patterns and predictors of SCD amongst patients with LVEF ≤35% and LVEF >35%. METHODS Data from STEMI patients was prospectively collected. SCD cases formed the study cohort and were categorized into 2 groups based on their LV function. RESULTS There were 929 patients (mean age 55 ± 17 years) with a follow up of 41 ± 16 months. 154 pts (16.6%) had LVEF ≤35% (Group A, LVEF-29.9% ± 6%) and 775 pts had LVEF >35% (Group B, LVEF - 49% ± 14%). The two groups were similar with respect to sex distribution, age, prevalence of hypertension, and mean period of presentation. They differed in incidence of anterior wall MI (77.2% vs 55%), reperfusion (69% vs. 75%), prevalence of diabetes (50.6% vs 42%), and medication non-compliance (34% vs. 13%). The total SCD was 78 [Gp A, 25 (16.2%); Gp B, 53 (6.8%); p < 0.001]. The temporal cumulative SCD related mortality in the 2 groups was 1st month (8% vs. 4% p = 0.075), 3 months (14% vs. 5%, p < 0.001), 6 months (17% vs. 5%, p < 0.001), 1 year (18% vs. 6%, p < 0.001), at end of follow up (27% vs. 8%, p < 0.001). Multivariate predictors of SCD were medication compliance in the first month, and severe LV dysfunction with medication compliance beyond 1st month. CONCLUSION The incidence of SCD is high in first month after STEMI, irrespective of LV function. The number of SCD is higher in Group B patients. Algorithms to assess risk of SCD in early post STEMI period are urgently needed.
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Affiliation(s)
- Nishad Chitnis
- Cardiologist, Dept. of Cardiology, Krishna Institute of Medical Sciences, Hyderabad 500003, India
| | - Sudhindra Vooturi
- Physiotherapist and Statistician, Dept. of Physiotherapy, Krishna Institute of Medical Sciences, Hyderabad 500003, India
| | - B Hygriv Rao
- Director Pacing & Electrophysiology, Dept. of Cardiology, Krishna Institute of Medical Sciences, Hyderabad 500003, India.
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Miyoshi H, Oishi Y, Mizuguchi Y, Iuchi A, Nagase N, Ara N, Oki T. Association of left atrial reservoir function with left atrial structural remodeling related to left ventricular dysfunction in asymptomatic patients with hypertension: evaluation by two-dimensional speckle-tracking echocardiography. Clin Exp Hypertens 2014; 37:155-65. [PMID: 25050647 DOI: 10.3109/10641963.2014.933962] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Left atrial (LA) structural and functional abnormalities are vital steps on the pathway toward heart failure with preserved ejection fraction in asymptomatic patients. The purpose of this study was to assess the relationship of LA function, particularly reservoir function, with LA structural remodeling related to the left ventricular (LV) dysfunction in asymptomatic patients with hypertension (HT) using conventional, tissue Doppler, and 2-D speckle-tracking echocardiography. Fifty age-matched healthy individuals and 140 patients with HT, including 75 with LA volume index (LAVI)<29 ml/m2 (normal LA group) and 65 with LAVI≥29 ml/m2 (large LA group), were enrolled. We defined peak early diastolic transmitral flow velocity/peak early diastolic mitral annular motion velocity (E/e')/peak systolic LA strain (S-LAs) as LA diastolic stiffness. The LV mass index, relative LV wall thickness, peak atrial systolic transmitral flow velocity, LA total, active, and passive emptying volume indexes, and E/e'/S-LAs were greatest, and S-LAs, peak early diastolic LA strain, peak systolic LV longitudinal strain and circumferential strain rate, and peak early diastolic LV radial strain rate were lower in the large LA group compared with control and/or normal LA group. Multivariate linear regression analysis revealed that aging, LA remodeling, and LV systolic and diastolic dysfunction are defined as strong predictors related to increased LA diastolic stiffness in the large LA group. HT alters LA dynamics significantly, with resultant increased LA volume and diastolic stiffness related to LV diastolic and systolic dysfunction, even in asymptomatic patients. Earlier treatment with reninangiotensin system inhibitors may improve abnormal LA-LV interaction in this patient population.
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Affiliation(s)
- Hirokazu Miyoshi
- Cardiovascular Section, Higashi Tokushima Medical Center, National Hospital Organization , Tokushima , Japan and
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El-Mas MM, Abdel-Rahman AA. Nongenomic effects of estrogen mediate the dose-related myocardial oxidative stress and dysfunction caused by acute ethanol in female rats. Am J Physiol Endocrinol Metab 2014; 306:E740-7. [PMID: 24368668 PMCID: PMC3962612 DOI: 10.1152/ajpendo.00465.2013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Acute ethanol lowers blood pressure (BP) and cardiac output in proestrus and after chronic estrogen (E2) replacement in ovariectomized (OVX) female rats. However, whether rapid nongenomic effects of estrogen mediate these hemodynamic effects of ethanol remains unanswered. To test this hypothesis, we investigated the effect of ethanol (0.5 or 1.5 g/kg iv) on left ventricular (LV) function and oxidative markers in OVX rats pretreated 30 min earlier with 1 μg/kg E2 (OVXE2) or vehicle (OVX) and in proestrus sham-operated (SO) rats. In SO rats, ethanol caused significant and dose-related reductions in BP, rate of rise in LV pressure (LV dP/dtmax), and LV developed pressure (LVDP). These effects of ethanol disappeared in OVX rats and were restored in OVXE2 rats, suggesting rapid estrogen receptor signaling mediates the detrimental effects of ethanol on LV function. Ex vivo studies revealed that the estrogen-dependent myocardial dysfunction caused by ethanol was coupled with higher LV 1) generation of reactive oxygen species (ROS), 2) expression of malondialdehyde and 4-hydroxynonenal protein adducts, 3) phosphorylation of protein kinase B (Akt) and extracellular signal-regulated kinases (ERK1/2), and 4) catalase activity. ERK1/2 inhibition by PD-98059 (1 mg/kg iv) abrogated the myocardial dysfunction, hypotension, and the elevation in myocardial ROS generation caused by ethanol. We conclude that rapid estrogen receptor signaling is implicated in cellular events that lead to the generation of aldehyde protein adducts and Akt/ERK1/2 phosphorylation, which ultimately mediate the estrogen-dependent LV oxidative stress and dysfunction caused by ethanol in female rats.
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Affiliation(s)
- Mahmoud M El-Mas
- Department of Pharmacology, School of Medicine, East Carolina University, Greenville, North Carolina
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Wang M, Gupta RC, Rastogi S, Kohli S, Sabbah MS, Zhang K, Mohyi P, Hogie M, Fischer Y, Sabbah HN. Effects of acute intravenous infusion of apelin on left ventricular function in dogs with advanced heart failure. J Card Fail 2014; 19:509-16. [PMID: 23834927 DOI: 10.1016/j.cardfail.2013.05.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 03/18/2013] [Accepted: 05/03/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Apelin-13 (APLN) through apelin receptor (APJ) exerts peripheral vasodilatory and potent positive inotropic effects. We examined the effects of exogenous intravenous infusion of APLN on left ventricular (LV) systolic function in dogs with heart failure (HF, LV ejection fraction, EF~30%). METHODS AND RESULTS Studies were performed in 7 dogs with microembolization-induced HF. Each dog received an intravenous infusion of low dose and high dose APLN followed by washout period. LV end-diastolic volume (EDV), end-systolic volume (ESV) and LV EF were measured at specified time points. APLN protein level was determined in plasma at all time points. mRNA and protein levels of APLN and APJ in LV tissue were also measured in 7 normal (NL) and 7 heart failure (HF) dogs. APLN reduced EDV only at the high dose, significantly reduced ESV and increased EF with both doses. In plasma of HF dogs, APLN levels were reduced significantly compared to NL dogs. APLN treatment in HF dogs significantly increased the plasma APLN levels at both low and high doses. Expression of APLN, but not of APJ, was reduced in LV tissue of HF dogs compared to NL. CONCLUSIONS Exogenous administration of APLN improved LV systolic function in dogs with advanced HF.
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Affiliation(s)
- Mengjun Wang
- Division of Cardiovascular Medicine, Department of Medicine, Henry Ford Hospital, Detroit, Michigan 48202, USA
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Alshehri AM, Azoz AM, Shaheen HA, Farrag YA, Khalifa MAA, Youssef A. Acute effects of cigarette smoking on the cardiac diastolic functions. J Saudi Heart Assoc 2013; 25:173-9. [PMID: 24174857 DOI: 10.1016/j.jsha.2013.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 03/09/2013] [Accepted: 03/10/2013] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND Smoking is an independent risk factor for coronary heart diseases and it increases all causes of cardiovascular morbidity and mortality. AIM OF THE WORK To assess the acute effect of cigarette smoking on ventricular diastolic functions (LV and RV) in healthy, young, and slim smokers. METHODS Thirty volunteers who had recently commenced smoking (less than one year) and who smoked 1-2 cigarettes per day, underwent ECG, 2D and M-mode echocardiography, standard Doppler echocardiography, pulsed TDI (tissue Doppler imaging) on septal and lateral side of mitral annulus and lateral tricuspid annulus. Vp values were measured. The investigator asked them to hold smoking for at least two days after which echocardiographic examination was conducted before smoking one cigarette and the second examination conducted immediately after smoking one cigarette containing at least 0.4 mg of nicotine. RESULTS Doppler findings over the mitral valve showed the E wave was significantly reduced from 82.7 ± 10.4 to 74.6 ± 10.4 after smoking; the A wave increased; the E/A ratio was reduced from 1.5 ± 0.3 to 1.2 ± 0.2; the E' septal significantly decreased (15.3 ± 2.4 vs. 11.2 ± 1.1) after smoking, and the E/E' ratio increased from 5.5 ± 1.1 to 6.7 ± 1.1. Doppler findings over the tricuspid valve showed the E wave was reduced from 60.6 ± 9.7 to 52.7 ± 9.6; the A wave increased from 42.2 ± 6.5 to 50.1 ± 6.6; and the E/A ratio decreased (1.45 ± 0.25 vs. 1.06 ± 0.19). The E' significantly decreased from 14.1 ± 1.8 to 10.9 ± 2.4, while the A' increased (10.2 ± 2.4 vs. 12.7 ± 3.6) after smoking; and the IVRT of the RV was significantly prolonged from 62.9 ± 7.5 to 68.7 ± 7.9 after smoking. The Vp was markedly reduced from 67.8 ± 8 to 55.2 ± 3.5 after smoking. These findings reflected on the LV filling pressure (LVFvp) which increased from 9.8 ± 1.4 to 10.5 ± 1.3 after smoking. All changes were statistically significant at P < 0.001. CONCLUSIONS Our study reveals that cigarette smoking can result in significant acute alteration in the diastolic functions of both ventricles.
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Dorobantu M, Fruntelata AG, Scafa-Udriste A, Tautu OF. B-Type Natriuretic Peptide (BNP) and Left Ventricular (LV) Function in Patients with ST-Segment Elevation Myocardial Infarction (STEMI). Maedica (Bucur) 2010; 5:243-249. [PMID: 21977165 PMCID: PMC3152842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND After acute myocardial infarction (AMI), left ventricular (LV) function is a well-established prognostic marker. Recent studies indicate that serum levels of brain natriuretic peptide (BNP) also represent an prognostic marker in this setting but so far without a precise cut-off value. OBJECTIVE The aim of this study was to assess the predictive value of BNP serum levels for LV function assessed by echocardiography in STEMI patients undergoing revascularization. METHODS We prospectively studied a cohort of 88 consecutive patients (mean age 51.6 years, 88.6% males) hospitalized in our clinic for STEMI in Killip class I (50% anterior infarction), who underwent reperfusion therapy. Serum BNP levels were measured on admission, at 24h and at 30 days after reperfusion. Detailed echocardiography was performed at baseline, at 24 hours after reperfusion, on discharge and at follow-up at 1 month. Left ventricular systolic and diastolic dysfunction were defined by LVEF < 45% and E/A ratio respectively. RESULTS ROC curve analysis showed that BNP measurements on admission and at 24 hours after revascularization have no predictive value neighter for diastolic LV dysfunction in anteior or inferior AMI patients, nor for systolic LV dysfunction in inferior AMI patients. Only BNP levels at 24 hours after revascularization can predict systolic LV dysfunction in anterior AMI patients with a 90.3% sensitivity and a 60% false positive rate at a cutt off value of 90pg/ml. CONCLUSIONS Early measurement of BNP levels may allow early prediction of anterior STEMI patients at risk of developing systolic LV dysfunction after revascularization therapy.
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Affiliation(s)
- Maria Dorobantu
- Clinical Emergency Hospital, Cardiology Department, Bucharest, Romania
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Slart RHJA, Bax JJ, van der Wall EE, van Veldhuisen DJ, Jager PL, Dierckx RA. Nuclear cardiac imaging for the assessment of myocardial viability. Neth Heart J 2005; 13:408-415. [PMID: 25696432 PMCID: PMC2497364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
An important aspect of the diagnostic and prognostic work-up of patients with ischaemic cardiomyopathy is the assessment of myocardial viability. Patients with left ventricular dysfunction who have viable myocardium are the patients at highest risk because of the potential for ischaemia but at the same time benefit most from revascularisation. It is important to identify viable myocardium in these patients, and radionuclide myocardial scintigraphy is an excellent tool for this. Single-photon emission computed tomography perfusion scintigraphy (SPECT), whether using 201thallium, 99mTc-sestamibi, or 99mTc- tetrofosmin, in stress and/or rest protocols, has consistently been shown to be an effective modality for identifying myocardial viability and guiding appropriate management. Metabolic and perfusion imaging with positron emission tomography radiotracers frequently adds additional information and is a powerful tool for predicting which patients will have an improved outcome from revascularisation. New techniques in the nuclear cardiology field, such as attenuation corrected SPECT, dual isotope simultaneous acquisition (DISA) SPECT and gated FDG PET are promising and will further improve the detection of myocardial viability. Also the combination of multislice computed tomography scanners with PET opens possibilities of adding coronary calcium scoring and noninvasive coronary angiography to myocardial perfusion imaging and quantification.
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