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Condition: Heart Failure
Procedure: PET Scan
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Total 179 results found since Jan 2013.
Molecular imaging of inflammation in the brain-heart axis after ischemic stroke: comparison of two murine stroke models.
Conclusions: In contrast to topical ET-1 application after craniotomy, the intravascular MCAo model enables imaging studies of brain-heart networking after stroke, which evokes elevated TSPO PET signal in both brain and heart. The severity of cerebral ischemic damage may contribute to cardiac dysfunction via systemic inflammatory networking.
Source: Journal of Nuclear Medicine - May 14, 2020 Category: Nuclear Medicine Authors: Hermanns, N., Bascunana, P., Langer, B. L. N., Wolf, B., Bankstahl, J., Ross, T., Bengel, F., Thackeray, J. Tags: Cardiovascular Council YIA Symposium Source Type: research
Do patients or their physicians more accurately assess long-term risk associated with hypertension? A population-based study.
Conclusions: Patients were better than their physicians in estimating the average probability of morbidity due to hypertension. Both the patients and their attending physicians had difficulty in estimating the individual patient's risk of complications. The results support the use of evidence-based tools in consultations for assessing the risk of cardiovascular complications associated with hypertension.KeywordsHypertension; cardiovascular diseases/prevention & control; risk assessment, algorithms; decision making; prospective studiesKey points • Shared decision making relies on a common understanding of risks an...
Source: Primary Care - May 1, 2020 Category: Primary Care Authors: Hoffmann M, Nilsson PM, Ahlner J, Dahllöf B, Fredrikson M, Säljö R, Kjellgren KI Tags: Scand J Prim Health Care Source Type: research
Outcome of patients receiving a continuous flow left ventricular assist device - a retrospective single center study.
Conclusions. Survival rates were good, although one third of patients were bridged with temporary circulatory support. We report a high level of freedom from pump thrombosis, fatal stroke, and driveline infection.
PMID: 32292078 [PubMed - as supplied by publisher]
Source: Scandinavian Cardiovascular Journal - April 16, 2020 Category: Cardiology Tags: Scand Cardiovasc J Source Type: research
A randomised, double ‐blind, placebo‐controlled trial of metformin on myocardial efficiency in insulin‐resistant chronic heart failure patients without diabetes
ConclusionMetformin treatment in non ‐diabetic HFrEF patients improved myocardial efficiency by reducing myocardial oxygen consumption. Measurement of circulating metformin levels differentiated responders from non‐responders. These energy‐sparing effects of metformin encourage further large‐scale investigations in heart failur e patients without diabetes.
Source: European Journal of Heart Failure - December 20, 2019 Category: Cardiology Authors: Anders Hostrup Larsen,
Niels Jessen,
Helene N ørrelund,
Lars Poulsen Tolbod,
Hendrik Johannes Harms,
Søren Feddersen,
Flemming Nielsen,
Kim Brøsen,
Nils Henrik Hansson,
Jørgen Frøkiær,
Steen Hvitfeldt Poulsen,
Jens Sörensen,
Henrik Wigg Tags: Research Article Source Type: research
What ’s the Big Deal about Data in Medtech?
Discussion, “Top 5 Things You Need to Know about the Implantable Internet of Things."
Brian Chapman, partner and leader of ZS’s medtech practice of ZS, attributes today’s focus on data to the intersection of two important things:
"A general recognition that understanding more and connecting actions with outcomes will provide feedback and understanding that will drive standards of care. This is not new, but as capabilities rise in data collection, aggregation, and synthesize rise, and coupled with machine learning, the promise of data in healthcare is becoming even more ...
Source: MDDI - December 20, 2019 Category: Medical Devices Authors: Daphne Allen Tags: Digital Health Source Type: news
Virtual Fitting and Hemodynamic Simulation of the EVAHEART 2 Left Ventricular Assist Device and Double-Cuff Tipless Inflow Cannula
Inflow malposition during surgery, postoperative pump migration, inflow obstruction, and right ventricular compression are major contributors to low flow and adverse events in patients with ventricular assist devices (VADs). These position abnormalities can lead to adverse events including ischemic stroke. To address these problems, we conducted a virtual anatomical fitting study and hemodynamic simulation on iterative cannula designs, resulting in the EVAHEART 2 with the novel double-cuff tipless (DCT) inflow cannula and smaller pump design. Anatomical fitting was based on computed tomography scans of six patients with he...
Source: ASAIO Journal - September 1, 2019 Category: Medical Devices Tags: Biomedical Engineering Source Type: research
Adipose Tissue Distribution and Cardiovascular Disease Risk Among Breast Cancer Survivors.
CONCLUSION: Visceral and intramuscular adiposity were associated with increased CVD incidence after breast cancer diagnosis, independent of pre-existing CVD risk factors and cancer treatments. The increased CVD incidence among normal-weight patients with greater visceral adiposity would go undetected with BMI alone. Measures of adipose tissue distribution may help identify high-risk patients and tailor CVD prevention strategies.
PMID: 31369302 [PubMed - as supplied by publisher]
Source: Clinical Breast Cancer - July 31, 2019 Category: Cancer & Oncology Authors: Cespedes Feliciano EM, Chen WY, Bradshaw PT, Prado CM, Alexeeff S, Albers KB, Castillo AL, Caan BJ Tags: J Clin Oncol Source Type: research
Clinical evaluation of left ventricular function and morphology using an accelerated k-t sensitivity encoding method in cardiovascular magnetic resonance
ConclusionThe accelerated k-t SENSE CMR sequence is clinically feasible and accurately quantifies LV volumes, function, and mass, with short acquisition time and good image quality.
Source: Insights into Imaging - June 12, 2019 Category: Radiology 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
The Outcome of Status Epilepticus and Long-Term Follow-Up
Conclusion: This study highlights the importance of regular care and patient follow-up.
Introduction
Status epilepticus (SE) is a condition and most extreme form of epilepsy (1), which leads to abnormal and prolonged seizure (at least 5 min). In case SE persists over 30 min, it may have severe long-term consequences (2). Referring to the new classification scheme of SE, there are two operational dimensions of the definition: time point 1 (T1) is associated with abnormally prolonged seizure, when therapy should be initiated, while time point 2 (T2) is related to the time of on-going seizure activity involving a risk...
Source: Frontiers in Neurology - April 25, 2019 Category: Neurology 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
Harnessing the Four Elements for Mental Health
DiscussionAs detailed above, the “elements” in both a classical and a contemporary sense have effects on our mental health and are potentially modifiable aspects that can be harnessed as therapeutic interventions. The most robust interventional evidence currently available shows tentative support for several use of the elements via horticultural and nature-exposure therapy, green exercise/physical activity, sauna and heat therapy, balneotherapy, and breathing exercises. It should be noted that, in many cases, these interventions were not studied in definitive diagnosed psychiatric disorders and thus it is pre...
Source: Frontiers in Psychiatry - April 23, 2019 Category: Psychiatry Source Type: research
Combination of Dexmedetomidine and Ketamine for Magnetic Resonance Imaging Sedation
Conclusions: The efficacy of DEX–KET sedation was comparable to that of midazolam for MRI examination. DEX–KET was related to shorter scan time and lower occurrence of complications compared to midazolam.
Introduction
Neurocritically ill patients often require brain magnetic resonance imaging (MRI) in addition to conventional neurological evaluations. Brain MRI can reveal structural lesions with a high sensitivity due to its excellent spatial resolution and enhanced soft tissue contrast (1–3). To acquire MRI images, patients' cooperation is imperative. However, keeping patients with ...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research
Pentraxin 3 in Cardiovascular Disease
Giuseppe Ristagno1*, Francesca Fumagalli1, Barbara Bottazzi2, Alberto Mantovani2,3,4, Davide Olivari1, Deborah Novelli1 and Roberto Latini1
1Department of Cardiovascular Research, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
2Humanitas Clinical and Research Center-IRCCS, Milan, Italy
3Humanitas University, Milan, Italy
4The William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
The long pentraxin PTX3 is a member of the pentraxin family produced locally by stromal and myeloid cells in response to proinflammatory signals and microbial moieties. The p...
Source: Frontiers in Immunology - April 16, 2019 Category: Allergy & Immunology Source Type: research
