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Condition: Cardiomyopathy
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Total 48 results found since Jan 2013.

Can I use DOAC in a patient with renal disease?
Case A 76-year-old man is diagnosed with non-valvular atrial fibrillation. His comorbid conditions are hypertension, diabetes complicated by neuropathy, and chronic kidney disease stage 3. His current medications include metformin, lisinopril, gabapentin, and aspirin. His most recent laboratories showed a creatinine 1.8, creatinine clearance (CrCl) 35 mL/min, hemoglobin 11g/dL, and international normalized ratio 1.0. His congestive heart failure, hypertension, age, diabetes, stroke, vascular disease, and sex (CHADSVASc) score is 4. Which medication should we use to prevent stroke in this patient?  Brief overview of the is...
Source: The Hospitalist - February 3, 2022 Category: Hospital Management Authors: Ronda Whitaker Tags: Renal & Genitourinary Source Type: research

Age-Dependence of Flow Homeostasis in the Left Ventricle
Conclusions: In average, blood spends 1 to 3 beats inside the LV with very low shear stress rates. The apical region is the most prone to blood stasis, particularly in mid-aged adults. The washout of blood in the normal LV is age-dependent due to physiological changes in the degree of apical penetration of the filling waves. Introduction Cardioembolic stroke is a major source of mortality and disability worldwide and blood stasis one of its major determinants (Adams et al., 1986). Left ventricular (LV) function has evolved to maximize mechanical efficiency and ensure organ perfusion at a low cost of energy and fill...
Source: Frontiers in Physiology - April 25, 2019 Category: Physiology Source Type: research

A Review of Mathematical Models for Muscular Dystrophy: A Systems Biology Approach
Discussion With new developments in computational power and data availability, a growing amount of research is using a systems biology approach to understand pathogenesis and progression of disease. Effective and integrated in vitro and in silico models could inform biological phenomena, even without the need of a living subject. For instance, over the last few decades, collagen hydrogel with muscle derived cells (CHMDCs) have promised to revolutionize in vitro experiments and tissue engineering. For CHMDCs to reach the envisioned use, verification by use of mathematical simulations are needed. Recently while examining sha...
Source: PLOS Currents Muscular Dystrophy - February 16, 2018 Category: Neurology Authors: Matthew Houston Source Type: research

Sixth Annual Pediatric Interagency Registry for Mechanical Circulatory Support (Pedimacs) Report
CONCLUSIONS: This Sixth Pedimacs Report demonstrates the continued evolution of the pediatric field. The complexity of cardiac physiologies and anatomical constraint mandates the need for multiple types of devices utilized (PC, PP, IC). Detailed analyses of each device type in this report provide valuable information to further advance the care of this challenging and vulnerable population.PMID:36402175 | DOI:10.1016/j.athoracsur.2022.10.042
Source: The Annals of Thoracic Surgery - November 19, 2022 Category: Cardiovascular & Thoracic Surgery Authors: Iki Adachi David M Peng Seth A Hollander Kathleen E Simpson Ryan R Davies Jeffrey P Jacobs Christina J VanderPluym Francis Fynn-Thompson Dennis A Wells Sabrina P Law Shahnawaz Amdani Ryan Cantor Devin Koehl James K Kirklin David L S Morales Joseph W Rossa Source Type: research

The epidemiology, mechanisms, diagnosis and treatment of cardiovascular disease in adult patients with HIV
This article discusses the complex interactions involving HIV infection, the novel and traditional risk factors for CVD, and the antiretroviral HIV therapies which can contribute to CVD in HIV-infected people. In addition, the treatment of HIV+ patients with acute myocardial infarction, stroke, and cardiomyopathy/heart failure are discussed. Current recommended ART and their major side effects are summarized in table format. All medical personnel must be aware of the increasing incidence of CVD on the morbidity and mortality in HIV infected patients and must be watchful for the presence of CVD in their patients with HIV.PM...
Source: Atherosclerosis - May 22, 2023 Category: Cardiology Authors: Robert J Henning John N Greene Source Type: research

Outcomes of Berlin Heart EXCOR ® pediatric ventricular assist device support in patients with restrictive and hypertrophic cardiomyopathy
This study reviews the North American experience with Berlin Heart EXCOR® ventricular assist device implants in children with such physiology. The Berlin Heart clinical database was reviewed. Patients with primary diastolic dysfunction are included in this study. Twenty pediatric patients with restrictive cardiomyopathy (n = 13), hypertrophic cardiomyopathy (n = 3), or congenital heart disease with restrictive physiology (n = 4) who were supported with EXCOR® were identified. Of these, nine (45%) were successfully bridged to transplant, one (5%) weaned from support, and 10 (50%) died after support was withdrawn. Of...
Source: Pediatric Transplantation - September 1, 2017 Category: Transplant Surgery Authors: Jennifer A. Su, Jondavid Menteer Tags: ORIGINAL ARTICLE Source Type: research

Heartfelt sepsis: microvascular injury due to genomic storm.
Abstract Sepsis is one of the ten leading causes of death in developed and developing countries. In the United States, sepsis mortality approaches that of acute myocardial infarction and exceeds deaths from stroke. Neonates and the elderly are the most vulnerable patients, with these groups suffering from the highest sepsis mortality. In both groups, many survivors respectively display serious developmental disabilities and cognitive decline. The National Institute of Health National Heart Lung and Blood Institute Panel redefined sepsis as a "severe endothelial dysfunction syndrome in response to intravascular and...
Source: Polish Heart Journal - July 5, 2018 Category: Cardiology Authors: Hawiger J Tags: Kardiol Pol Source Type: research

A Pregnancy Complication to Look out for even after Pregnancy
​BY GREGORY TAYLOR, DO, & SHERIF G. EL-ALAYLI, DOA 30-year-old G5P3 presented to the ED with bilateral lower-extremity edema and headache for three days. She presented one week after an uncomplicated full-term vaginal delivery with an unremarkable pregnancy course and no prior requirement for antihypertensive therapy. The headache was described as achy to sharp, with associated photophobia. She also noted occasional vaginal spotting, which was common a few weeks after delivery. She denied any chest pain, shortness of breath, nausea or vomiting, abdominal pain, or any other symptoms. She admitted to occasional mild cr...
Source: The Case Files - August 28, 2018 Category: Emergency Medicine Tags: Blog Posts Source Type: research

Genotype and Lifetime Burden of Disease in Hypertrophic Cardiomyopathy: Insights from the Sarcomeric Human Cardiomyopathy Registry (SHaRe).
Conclusions: The cumulative burden of HCM is substantial and dominated by heart failure and atrial fibrillation occurring many years following diagnosis. Young age of diagnosis and the presence of a sarcomere mutation are powerful predictors of adverse outcomes. These findings highlight the need for close surveillance throughout life, and the need to develop disease-modifying therapies. PMID: 30297972 [PubMed - in process]
Source: Circulation - October 2, 2018 Category: Cardiology Authors: Ho CY, Day SM, Ashley EA, Michels M, Pereira AC, Jacoby D, Cirino AL, Fox JC, Lakdawala NK, Ware JS, Caleshu CA, Helms AS, Colan SD, Girolami F, Cecchi F, Seidman CE, Sajeev G, Signorovitch J, Green EM, Olivotto I Tags: Circulation Source Type: research

Cardiac Complications in the Adult Bone Marrow Transplant Patient
AbstractPurpose of ReviewDue to advancements in oncologic treatment strategies and techniques, the number of survivors who have undergone hematopoetic stem cell transplant (HCT) continues to increase in the United States; this number is projected to reach 502,000 by the year 2030. There is significant interest within the field of cardio-oncology to identify cardiotoxicity and cardiovascular disease in the HCT population. Epidemiologic studies analyzing both short- and long-term cardiovascular effects, risk stratification modeling, cardioprotective strategies, and expert consensus documents for cardiotoxicity surveillance r...
Source: Current Oncology Reports - March 1, 2019 Category: Cancer & Oncology Source Type: research

YiQiFuMai Powder Injection Attenuates Coronary Artery Ligation-Induced Heart Failure Through Improving Mitochondrial Function via Regulating ROS Generation and CaMKII Signaling Pathways
This study was carried out in accordance with the recommendations of “Guide for the Care and Use of Laboratory Animals, National Institutes of Health.” The protocol was approved by the “China Pharmaceutical University.” Surgical Preparation The mice were anesthetized with chloral hydrate (4% chloral hydrate, ip). The HF model was induced by CAL as previously reported (Gao et al., 2010). Successful ligation of the coronary artery was confirmed by the occurrence of ST-segment elevation in electrocardiogram. Sham operated mice were performed the same process except left CAL. After ligation, the h...
Source: Frontiers in Pharmacology - April 9, 2019 Category: Drugs & Pharmacology Source Type: research

Atrial Transcriptional Profiles of Molecular Targets Mediating Electrophysiological Function in Aging and Pgc-1 β Deficient Murine Hearts
Conclusion: These findings limit the possible roles of gene transcriptional changes in previously reported age-dependent pro-arrhythmic electrophysiologial changes observed in Pgc-1β-/- atria to an altered Ca2+-ATPase (Atp2a2) expression. This directly parallels previously reported arrhythmic mechanism associated with p21-activated kinase type 1 deficiency. This could add to contributions from the direct physiological outcomes of mitochondrial dysfunction, whether through reactive oxygen species (ROS) production or altered Ca2+ homeostasis. Introduction Atrial arrhythmias constitute a major public health pro...
Source: Frontiers in Physiology - April 23, 2019 Category: Physiology Source Type: research

Impaired Activity of Ryanodine Receptors Contributes to Calcium Mishandling in Cardiomyocytes of Metabolic Syndrome Rats
Conclusion Principal findings of this work are that abnormal Ca2+ transient amplitude, contractile dysfunction; and impaired relaxation of MetS cardiomyocytes underlies intrinsic dysfunctional RyR2 and SERCA pump. Abnormal activity of RyRs was evidenced by its decreased ability to bind [3H]-ryanodine. Although the MetS condition does not modify RyR2 protein expression, its phosphorylation at Ser2814 is decreased, which impairs its capacity for activation during ECC. The dysfunctional RyRs, together with a decreased activity of SERCA pump due to decreased Thr17-PLN phosphorylation suggest a downregulation of CaMKII in MetS...
Source: Frontiers in Physiology - April 29, 2019 Category: Physiology Source Type: research

Surgical Techniques for Implanting the EVAHEART 2 Double Cuff Tipless Inflow Cannula
The EVAHEART 2 (Sun Medical Technology Research Corporation, Nagano, Japan) is an investigational centrifugal ventricular assist device in the United States, introduced a new type inflow, named “double cuff tipless” inflow cannula intended to mitigate the risks of cannula malposition and subsequent ischemic stroke events associated with thrombi around the inflow cannula. To achieve these performance benefits of the “tipless” design, however, it is crucial to adhere to the recommended surgical procedure. We introduced a polymer-based patient model that mimics a dilated cardiomyopathy apex for inflow cannula implanta...
Source: ASAIO Journal - November 1, 2019 Category: Medical Devices Tags: How to do it Article Source Type: research