5,400 results match your criteria Imaging in Dilated Cardiomyopathy


DIAGNOSIS AND MANAGEMENT OF SUSPECTED CONGESTIVE HEART FAILURE SECONDARY TO DILATED CARDIOMYOPATHY IN A SAND TIGER SHARK () WITH ESTABLISHMENT OF PRELIMINARY NORMAL ECHOCARDIOGRAPHIC INDICES.

J Zoo Wildl Med 2022 Jun;53(2):363-372

Veterinary Specialty Center, Buffalo Grove, IL 60089, USA.

Elasmobranch cardiac anatomy and physiology has been well described; however, there is a dearth of information regarding cardiac disease. In support of a clinical case of suspected congestive heart failure in a 22-yr-old male sand tiger shark (), a study was undertaken to identify feasible echocardiographic imaging planes and preliminary indices for this species. Eleven echocardiograms were performed on six apparently healthy sand tiger sharks. Read More

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The Role of Circulating Collagen Turnover Biomarkers and Late Gadolinium Enhancement in Patients with Non-Ischemic Dilated Cardiomyopathy.

Diagnostics (Basel) 2022 Jun 10;12(6). Epub 2022 Jun 10.

Department of Internal Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania.

Background: Myocardial scarring is a primary pathogenetic process in nonischemic dilated cardiomyopathy (NIDCM) that is responsible for progressive cardiac remodeling and heart failure, severely impacting the survival of these patients. Although several collagen turnover biomarkers have been associated with myocardial fibrosis, their clinical utility is still limited. Late gadolinium enhancement (LGE) determined by cardiac magnetic resonance imaging (CMR) has become a feasible method to detect myocardial replacement fibrosis. Read More

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Tricuspid Valve Prolapse: An Uncommon Pathology Revealed by TEE.

Methodist Debakey Cardiovasc J 2022 3;18(3):87-88. Epub 2022 Jun 3.

Houston Methodist DeBakey Heart & Vascular Center, Houston, Texas, US.

A 73-year-old male with a history of dilated cardiomyopathy and paroxysmal atrial fibrillation underwent transthoracic echocardiography (TTE) to evaluate for endocarditis due to fever and gram-positive cocci in chains on blood cultures. TTE revealed a 3 × 8 mm mass on the ventricular aspect of the tricuspid valve ( ). Subsequent transesophageal echocardiography (TEE) showed that the mass in question was actually myxomatous degeneration of the tricuspid valve (TV) and redundant chordae with significant valve prolapse. Read More

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Temporal Changes in Beat-to-Beat Variability of Repolarization Predict Imminent Nonsustained Ventricular Tachycardia in Patients With Ischemic and Nonischemic Dilated Cardiomyopathy.

J Am Heart Assoc 2022 Jun 22:e024294. Epub 2022 Jun 22.

Cardiology University Hospitals Leuven Leuven Belgium.

Background An increase in beat-to-beat variability of repolarization (BVR) predicts arrhythmia onset in experimental models, but its clinical translation is not well established. We investigated the temporal changes in BVR before nonsustained ventricular tachycardia (nsVT) in patients with implantable cardioverter defibrillator (ICD). Methods and Results Patients with nsVT on 24-hour Holter before ICD implantation for ischemic cardiomyopathy (ischemic cardiomyopathy+nsVT, n=43) or dilated cardiomyopathy (dilated cardiomyopathy+nsVT, n=37), matched ICD candidates without nsVT (ischemic cardiomyopathy-nsVT, n=29 and dilated cardiomyopathy-nsVT, n=26), and patients without ICD without structural heart disease (n=50) were studied. Read More

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PKN2 deficiency leads both to prenatal congenital cardiomyopathy and defective angiotensin II stress responses.

Biochem J 2022 Jun 22. Epub 2022 Jun 22.

The Francis Crick Institute, LONDON, United Kingdom.

The protein kinase PKN2 is required for embryonic development and PKN2 knockout mice die as a result of failure in expansion of mesoderm, cardiac development and neural tube closure.  In the adult, cardiomyocyte PKN2 and PKN1 (in combination) are required for cardiac adaptation to pressure-overload.  The specific role of PKN2 in contractile cardiomyocytes during development and its role in the adult heart remain to be fully established. Read More

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A Mild Dyssynchronous Contraction Pattern Detected by SPECT Myocardial Perfusion Imaging Predicts Super-Response to Cardiac Resynchronization Therapy.

Front Cardiovasc Med 2022 31;9:906467. Epub 2022 May 31.

Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.

Background: Using single photon emission computed tomography myocardial perfusion imaging (SPECT MPI) with phase analysis (PA), we aimed to identify the predictive value of a new contraction pattern in cardiac resynchronization therapy (CRT) response.

Methods: Left ventricular mechanical dyssynchrony (LVMD) was evaluated using SPECT MPI with PA in non-ischemic dilated cardiomyopathy (DCM) patients with left bundle branch block (LBBB) indicated for CRT. CRT super-response was defined as LV ejection fraction (EF) ≥50% or an absolute increase of LVEF >15%. Read More

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Differentiating Physiology from Pathology: The Gray Zones of the Athlete's Heart.

Clin Sports Med 2022 Jul;41(3):425-440

Sports & Performance Cardiology Program, MedStar Health, 3333 North Calvert Street Suite 500 JPB, Baltimore, MD 21218, USA. Electronic address:

Routine vigorous exercise can lead to electrical, structural, and functional adaptations that can enhance exercise performance. There are several factors that determine the type and magnitude of exercise-induced cardiac remodeling (EICR) in trained athletes. In some athletes with pronounced cardiac remodeling, there can be an overlap in morphologic features with mild forms of cardiomyopathy creating gray zone scenarios whereby distinguishing health from disease can be difficult. Read More

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Frequency, Penetrance, and Variable Expressivity of Dilated Cardiomyopathy-Associated Putative Pathogenic Gene Variants in UK Biobank Participants.

Circulation 2022 Jun 16:101161CIRCULATIONAHA121058143. Epub 2022 Jun 16.

Center for Inherited Cardiovascular Diseases, WellSpan Health, Lancaster, PA (G.S.D., C.A.A.C.).

Background: There is a paucity of data regarding the phenotype of dilated cardiomyopathy (DCM) gene variants in the general population. We aimed to determine the frequency and penetrance of DCM-associated putative pathogenic gene variants in a general adult population, with a focus on the expression of clinical and subclinical phenotype, including structural, functional, and arrhythmic disease features.

Methods: UK Biobank participants who had undergone whole exome sequencing, ECG, and cardiovascular magnetic resonance imaging were selected for study. Read More

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Loss-of-Function Variants Are Associated With Arrhythmogenic Cardiomyopathy Phenotypes When Identified Through Exome Sequencing of a General Clinical Population.

Circ Genom Precis Med 2022 Jun 14:101161CIRCGEN121003645. Epub 2022 Jun 14.

Department of Translational Data Science and Informatics, Geisinger, Danville, PA. (E.D.C., H.L.K., B.K.F., C.M.H.).

Background: The gene has recently garnered attention as a likely cause of arrhythmogenic cardiomyopathy, which is considered an actionable genetic condition. However, the association with disease in an unselected clinical population is unknown. We hypothesized that individuals with loss-of-function variants in () would have increased odds for arrhythmogenic cardiomyopathy-associated phenotypes versus variant-negative controls in the Geisinger MyCode cohort. Read More

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Prognostic impact of late gadolinium enhancement at the right ventricular insertion points in non-ischaemic dilated cardiomyopathy.

Eur Heart J Cardiovasc Imaging 2022 Jun 14. Epub 2022 Jun 14.

Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.

Aims: To evaluate the baseline characteristics and the prognostic implications associated with late gadolinium enhancement limited to the right ventricular insertion points (IP-LGE) or present at both the right ventricular insertion points and the left ventricle (IP&LV-LGE) in non-ischaemic dilated cardiomyopathy (DCM).

Methods And Results: This is a retrospective observational multicentre cohort study including 1165 consecutive patients with DCM evaluated by cardiac magnetic resonance. The primary endpoint included appropriate defibrillator therapies, sustained ventricular tachycardia, resuscitated cardiac arrest, or sudden death. Read More

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Genetic analysis of right heart structure and function in 40,000 people.

Nat Genet 2022 Jun 13;54(6):792-803. Epub 2022 Jun 13.

Cardiology Division, Massachusetts General Hospital, Boston, MA, USA.

Congenital heart diseases often involve maldevelopment of the evolutionarily recent right heart chamber. To gain insight into right heart structure and function, we fine-tuned deep learning models to recognize the right atrium, right ventricle and pulmonary artery, measuring right heart structures in 40,000 individuals from the UK Biobank with magnetic resonance imaging. Genome-wide association studies identified 130 distinct loci associated with at least one right heart measurement, of which 72 were not associated with left heart structures. Read More

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Left Atrial Strain in Dilated Cardiomyopathy: Another Step Toward Multichamber Phenotyping.

Authors:
James A White

JACC Cardiovasc Imaging 2022 Jun 11;15(6):1027-1029. Epub 2022 May 11.

Stephenson Cardiac Imaging Centre, Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada; Department of Diagnostic Imaging, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. Electronic address:

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Left Atrial Strain Has Superior Prognostic Value to Ventricular Function and Delayed-Enhancement in Dilated Cardiomyopathy.

JACC Cardiovasc Imaging 2022 Jun 11;15(6):1015-1026. Epub 2022 May 11.

Department of Cardiology, Cardiovascular Research Institute (CARIM), Maastricht University Medical Center, Maastricht, the Netherlands; Department of Cardiovascular Research, University of Leuven, Leuven, Belgium.

Background: The left atrium is an early sensor of left ventricular (LV) dysfunction. Still, the prognostic value of left atrial (LA) function (strain) on cardiac magnetic resonance (CMR) in dilated cardiomyopathy (DCM) remains unknown.

Objectives: The goal of this study was to evaluate the prognostic value of CMR-derived LA strain in DCM. Read More

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Texture analysis of SPECT myocardial perfusion provides prognostic value for dilated cardiomyopathy.

J Nucl Cardiol 2022 Jun 8. Epub 2022 Jun 8.

Department of Applied Computing, Michigan Technological University, 1400 Townsend Dr, Houghton, MI, 49931, USA.

Background: Texture analysis (TA) has demonstrated clinical values in extracting information, quantifying inhomogeneity, evaluating treatment outcomes, and predicting long-term prognosis for cardiac diseases. The aim of this study was to explore whether TA of SPECT myocardial perfusion could contribute to improving the prognosis of dilated cardiomyopathy (DCM) patients.

Methods: Eighty-eight patients were recruited in our study between 2009 and 2020 who were diagnosed with DCM and underwent single-photon emission tomography myocardial perfusion imaging (SPECT MPI). Read More

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Impact of type 2 diabetes mellitus on left ventricular deformation in non-ischemic dilated cardiomyopathy patients assessed by cardiac magnetic resonance imaging.

Cardiovasc Diabetol 2022 Jun 4;21(1):94. Epub 2022 Jun 4.

Department of Radiology, West China Hospital, Sichuan University, No.37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.

Background: Type 2 diabetes mellitus (T2DM) increases the risk of worse long-term outcomes in patients with non-ischemic dilated cardiomyopathy (NIDCM). However, the additive effects of T2DM on left ventricular (LV) function in NIDCM remain unclear. Accordingly, we aimed to investigate the impact of comorbid T2DM on LV deformation in NIDCM individuals. Read More

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T2 mapping in myocardial disease: a comprehensive review.

J Cardiovasc Magn Reson 2022 Jun 6;24(1):33. Epub 2022 Jun 6.

Department of Internal Medicine, Division of Cardiovascular Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA.

Cardiovascular magnetic resonance (CMR) is considered the gold standard imaging modality for myocardial tissue characterization. Elevated transverse relaxation time (T2) is specific for increased myocardial water content, increased free water, and is used as an index of myocardial edema. The strengths of quantitative T2 mapping lie in the accurate characterization of myocardial edema, and the early detection of reversible myocardial disease without the use of contrast agents or ionizing radiation. Read More

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Native Myocardial T1 Value in Predicting 1-Year Outcomes in Patients with Nonischemic Dilated Cardiomyopathy Experiencing Recent Heart Failure.

Int Heart J 2022 ;63(3):531-540

Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences.

The evidence for the clinical implications, especially the short-term utility, of native myocardial T1 value (T1) on cardiac magnetic resonance (CMR) in nonischemic dilated cardiomyopathy (NIDCM) is scant. We investigated the potential of T1 to assess left ventricular (LV) myocardial characteristics and predict 1-year outcomes in patient with NIDCM experiencing recent heart failure (HF).Forty-five patients with NIDCM and HF symptoms within 3 months underwent CMR with cine, non-contrast T1 mapping, and late gadolinium enhancement (LGE). Read More

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The discrepancies between clinical and histopathological diagnoses of cardiomyopathies in patients with stage D heart failure undergoing heart transplantation.

PLoS One 2022 1;17(6):e0269019. Epub 2022 Jun 1.

Division of Cardiovascular Medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.

Background: This study aimed to determine the etiology of stage-D heart failure (HF) and the prevalence and prognosis of misdiagnosed cardiomyopathy in patients undergoing heart transplantation.

Methods And Results: We retrospectively reviewed 127 consecutive patients (mean age, 42 years; 90 [71%], male) from February 1994 to September 2021 admitted for heart transplant in our tertiary center. Pre-transplant clinical diagnosis was compared with post-transplant pathological diagnosis. Read More

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High-Order Cardiomyopathy Human Heart Model and Mesh Generation.

Comput Cardiol (2010) 2021 Sep 10;2021. Epub 2022 Jan 10.

Chester F. Carlson Center for Imaging Science, Rochester Institute of Technology, Rochester, NY, USA.

Faithful, accurate, and successful cardiac biomechanics and electrophysiological simulations require patient-specific geometric models of the heart. Since the cardiac geometry consists of highly-curved boundaries, the use of high-order meshes with curved elements would ensure that the various curves and features present in the cardiac geometry are well-captured and preserved in the corresponding mesh. Most other existing mesh generation techniques require computer-aided design files to represent the geometric boundary, which are often not available for biomedical applications. Read More

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September 2021

Comprehensive Analysis of PDLIM3 Expression Profile, Prognostic Value, and Correlations with Immune Infiltrates in Gastric Cancer.

J Immunol Res 2022 12;2022:2039447. Epub 2022 May 12.

Medical Imaging Center, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China.

Protein PDZ and LIM domain 3 (PDLIM3) is a cytoskeletal protein, colocalizing with -actinin on the Z line of mature muscle fibers. It plays a key role in dilated cardiomyopathy (DCM), muscular dystrophy, and tumor progression. However, correlations between PDLIM3 expression, prognosis, and tumor-infiltrating immune cells in gastric cancer are unknown. Read More

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COVID-19-induced silent myocarditis and newly developed hypertension in a 3-year-old boy.

Egypt Heart J 2022 May 31;74(1):44. Epub 2022 May 31.

School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Background: COVID-19 myocarditis occurs in 7-28% of patients admitted in the hospital with or without multisystem inflammatory syndrome. It may present as fulminant myocarditis. Dilated cardiomyopathy as a sequela of COVID-19 myocarditis has been reported in the pediatric population. Read More

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Energy Drink-Associated Cardiomyopathy after Excessive Consumption: A Case Report.

J Tehran Heart Cent 2021 Jul;16(3):119-122

Department of Cardiology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey.

The basic components of energy drinks include caffeine, guarana, taurine, ginseng, and sugar. The excessive consumption of energy drinks has been associated with cardiovascular events such as tachycardia and myocardial infarction in the literature. We herein describe a 24-year-old man admitted to the emergency department. Read More

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Cardiac Manifestations in Iranian Patients with Behçet's Disease.

J Tehran Heart Cent 2021 Jul;16(3):109-112

Clinical Research Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran.

: Behcet's disease (BD) is a vasculitis with multisystem and multiorgan involvement. Cardiac involvement in BD is a rare complication with a poor outcome that manifests itself in different forms. In this study, we aimed to investigate cardiac involvement in BD. Read More

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A Comprehensive Assessment of Cardiomyopathies through Cardiovascular Magnetic Resonance: Focus on the Pediatric Population.

Diagnostics (Basel) 2022 Apr 19;12(5). Epub 2022 Apr 19.

Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, 80636 Munich, Germany.

Cardiomyopathies (CMPs) are a heterogeneous group of diseases that involve the myocardium and result in systolic or diastolic impairment of the cardiac muscle, potentially leading to heart failure, malignant arrhythmias, or sudden cardiac death. Occurrence in pediatric age is rare but has been associated with worse outcomes. Non-invasive cardiac imaging techniques, integrated with clinical, genetic, and electrocardiographic data, have shown a pivotal role in the clinical work-up of such diseases by defining structural alterations and assessing potential complications. Read More

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Stx4 is required to regulate cardiomyocyte Ca handling during vertebrate cardiac development.

HGG Adv 2022 Jul 27;3(3):100115. Epub 2022 Apr 27.

Division of Molecular Cardiovascular Biology, The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.

Requirements for vesicle fusion within the heart remain poorly understood, despite the multitude of processes that necessitate proper intracellular trafficking within cardiomyocytes. Here, we show that Syntaxin 4 (STX4), a target-Soluble -ethylmaleimide sensitive factor attachment receptor (t-SNARE) protein, is required for normal vertebrate cardiac conduction and vesicular transport. Two patients were identified with damaging variants in . Read More

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Dilated-Left Ventricular Non-Compaction Cardiomyopathy in a Pediatric Case with Compound Heterozygous Variants.

Int J Mol Sci 2022 May 6;23(9). Epub 2022 May 6.

Aix Marseille University, INSERM, Marseille Medical Genetics, U1251 Marseille, France.

Left Ventricular Non-Compaction (LVNC) is defined by the triad prominent myocardial trabecular meshwork, thin compacted layer, and deep intertrabecular recesses. LVNC associated with dilation is characterized by the coexistence of left ventricular dilation and systolic dysfunction. Pediatric cases with dilated-LVNC have worse outcomes than those with isolated dilated cardiomyopathy and adult patients. Read More

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Cardiac Magnetic Resonance with Delayed Enhancement of the Right Ventricle in patients with Left Ventricle primary involvement: diagnosis and evaluation of functional parameters.

Acta Biomed 2022 05 11;93(2):e2022023. Epub 2022 May 11.

+393441297942.

Cardiac Magnetic Resonance (CMR) allows an accurate Right Ventricle (RV) assessment that could be of great relevance in diseases causing inflammation or fibrosis. The aim of this study was to evaluate the concomitant involvement of the RV in patients with delayed enhancement (DE) of the Left Ventricle (LV-DE) using CMR. We retrospectively enrolled 95 (male n. Read More

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Association of Pathogenic DNA Variants Predisposing to Cardiomyopathy With Cardiovascular Disease Outcomes and All-Cause Mortality.

JAMA Cardiol 2022 May 11. Epub 2022 May 11.

Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston.

Importance: Pathogenic variants associated with inherited cardiomyopathy are recognized as important and clinically actionable when identified, leading some clinicians to recommend population-wide genomic screening.

Objective: To determine the prevalence and clinical importance of pathogenic variants associated with inherited cardiomyopathy within the context of contemporary clinical care.

Design, Setting, And Participants: This was a genetic association study of participants in Atherosclerosis in Risk Communities (ARIC), recruited from 1987 to 1989, with median follow-up of 27 years, and the UK Biobank, recruited from 2006 to 2010, with median follow-up of 10 years. Read More

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How to Improve the Outcomes of LVAD Implantation?

Transplant Proc 2022 May 7. Epub 2022 May 7.

Department of Cardiovascular Surgery and Transplantology, Jagiellonian University, Medical College, John Paul II Hospital, Cracow, Poland.

Background: Heart transplantation is the treatment of choice for selected patients with end-stage heart failure. Persistent donor organ shortage has resulted in a growing interest in mechanical circulatory support not only as a bridge to transplantation but also as a destination therapy.

Methods: The aim of the study was to analyze the indications, comorbidities, operative technique, complications, and follow-up of all patients undergoing left ventricular assist device implantation in one of the most experienced clinics in Poland between 2015 and 2020 and state the best timing of the procedure. Read More

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Red herring pathogenic variants: a case report of premature ventricular contraction-triggered ventricular fibrillation with an incidental pathogenic variant.

Eur Heart J Case Rep 2022 May 17;6(5):ytac115. Epub 2022 Mar 17.

Department of Molecular Pharmacology & Experimental Therapeutics, Windland Smith Rice Sudden Death Genomics Laboratory, Mayo Clinic, Rochester, MN 55905, USA.

Background: Pathogenic variants in the lamin A/C gene (LMNA) can lead to a wide range of phenotypes from dilated and arrhythmogenic cardiomyopathies and conduction abnormalities to partial lipodystrophies. This case highlights a coincidental pathogenic LMNA variant identified in a patient with sudden cardiac arrest (SCA). We demonstrate the need for careful interpretation of pathogenic variants identified in cardiomyopathy genes by highlighting a case in which a coincidental pathogenic LMNA variant was found in a patient with premature ventricular complex (PVC)-induced ventricular fibrillation (VF). Read More

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