What is myocardial viability assessment? Cardiology Basics
Myocardial viability means regions of myocardium which can recover its function if the blood supply is normalized. Viable myocardium will improve after restoring blood supply while non-viable myocardium will not.
So myocardial viability assessment is important in deciding whether the person will benefit from revascularization procedures like coronary angioplasty and coronary bypass surgery.
There are two types of viable myocardium, stunned myocardium and hibernating myocardium. Stunned myocardium needs only time to recover while hibernating myocardium needs restoration of blood supply. Stunned myocardium is transient dela...
Source: Cardiophile MD - October 12, 2022 Category: Cardiology Authors: Johnson Francis Tags: General Cardiology Source Type: blogs
Fight Aging! Newsletter, October 10th 2022
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter,
please visit:
https://www.fightaging.org/newsletter/
Longevity Industry Consulting Services
Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - October 9, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Athlete ’s heart – Cardiology Basics
Athlete’s heart – Cardiology Basics
Athlete’s heart is thickening of the heart muscle due to constant training in response to increased circulatory demand. Athlete’s heart is not dangerous, it is a physiological adaptation of the heart to training and increased load. It is associated with a slow heart rate, called athlete’s bradycardia.
The slower resting heart rate is a protective mechanism to prevent undue rise with exercise as normally heart rate increases with intensity of exercise. There is an increase in the size of the chambers of the heart and increased efficacy of pumping to meet the high demand duri...
Source: Cardiophile MD - October 8, 2022 Category: Cardiology Authors: Johnson Francis Tags: General Cardiology Source Type: blogs
Weekly Overseas Health IT Links – 8th October, 2022.
This report aligns with the reality that healthcare organizations are facing in terms of the effects to patient safety, " said Anahi Santiago, chief information security officer at Delaware-based ChristianaCare.She and other healthcare cybersecurity leaders spoke withHealthcare IT News about the connection between cyber hygiene and patient safety and how to prepare for healthcare cyber attacks. -----https://ehrintelligence.com/news/meaningful-use-ehrs-may-be-key-to-improved-quality-of-care‘Meaningful Use’ EHRs May Be Key to Improved Quality of CareHospitals that meet the “Meaningful Use” EHR requirements were ...
Source: Australian Health Information Technology - October 8, 2022 Category: Information Technology Authors: Dr David G More MB PhD Source Type: blogs
Atherosclerosis Leading to Peripheral Artery Disease Impacts Muscle Function via Reduced Blood Flow
Researchers working on a new way to assess the progression of peripheral artery disease here note how this consequence of atherosclerosis harms function of muscles via reduced blood flow. Reduced blood flow is in fact something of a theme in aging, as the heart weakens, physical activity is reduced, capillary density in tissues declines, and atherosclerotic lesions grow to the point of narrowing critical arteries. This is all good reason to find approaches to minimize and treat atherosclerosis, develop strategies to provoke greater angiogenesis in later life to better maintain capillary networks, and stay active.
...
Source: Fight Aging! - October 3, 2022 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Implantable cardioverter defibrillator (ICD)
Implantable cardioverter defibrillator, known in short as ICD, is a device which monitors the heart rhythm continuously and treats it electrically when needed. As it functions automatically without the need for a bystander intervention as in automated external defibrillator or AED, it is also known as automatic implantable cardioverter defibrillator or AICD. When Michel Mirowski reported on a standby automatic defibrillator in 1970, it was met with a lot of skepticism [1]. But now ICD is a time tested life-saving equipment.
The most commonly implanted ICD is also called transvenous ICD because the leads are introduced thr...
Source: Cardiophile MD - September 19, 2022 Category: Cardiology Authors: Johnson Francis Tags: ECG / Electrophysiology Source Type: blogs
Gerbode ventricular septal defects type I, II and III
Though congenital left ventricle to right atrium connections have been described as early as 1838 at autopsy [1, cited in 2], the description by Frank Gerbode and colleagues was in 1958, in their surgical series [3]. They described three varieties of communications:
Fusion of the septal leaflet of the tricuspid valve to the edges of the ventricular septal defect associated with a perforation of the leaflet. Shunt occurs from left ventricle directly into right atrium.
A defect or cleft of tricuspid valve close to its point of attachment directly overlying the VSD.
A combination of these two lesions.
They also described t...
Source: Cardiophile MD - September 8, 2022 Category: Cardiology Authors: Johnson Francis Tags: General Cardiology Source Type: blogs
Cardiac tumours
Cardiac tumours are most often secondaries from malignancies of breast, lung or malignant melanoma. Primary tumours of the heart are most often benign, of which about half are myxomas. Malignant primary tumours of the heart contribute to about a quarter of the primary cardiac tumours. The commonest primary malignant tumour of the heart would be a sarcoma [1]. Cardiac tumours may present with cardiovascular or constitutional symptoms. Sometimes they are incidentally detected on echocardiography or other imaging modalities.
Left atrial myxoma on echocardiogram
Computed tomography and magnetic resonance imaging can give addi...
Source: Cardiophile MD - August 25, 2022 Category: Cardiology Authors: Johnson Francis Tags: General Cardiology Source Type: blogs
Extracting reliable neurobiological biomarkers for complex subjective experiences isn't easy
"The self is the psychological counterpart of the default mode functionality of the brain. " (Scalabrini et al., 2021).The self studying how " The Self " is represented and constructed by the brain is apex meta-neuroscience.1 We can say that the self is a manifestation (or an illusory byproduct) of activity in thedefault mode network (medial prefrontal cortex, posterior cingulate cortex/precuneus, and angular gyrus), but what does this really mean? How do we relate specific neural states to aspects of a changeable self? In a field increasingly focused onremote control of genetically-defined microciruits, pinning down subje...
Source: The Neurocritic - July 31, 2022 Category: Neuroscience Authors: The Neurocritic Source Type: blogs
Deep learning model built on neuroimaging data identifies “Brain Age Gaps” as markers of Alzheimer’s disease (AD)
Brain Age Gap is a Composite Biomarker for Dementia Pathology or Severity (GEN):
Mayo Clinic scientists have developed a computational model that predicts brain age using a large collection of neuroimaging data obtained using FDG-PET (fluorodeoxyglucose positron emission tomography) and structural MRI (magnetic resonance imaging). The deep learning-based model tests the relationship between brain age gaps in various forms of dementia, including mild cognitive impairment (MCI), Alzheimer’s disease (AD), frontotemporal dementia (FTD), and Lewy body dementia (LBD), as well as in normal brains.
… “The ability for deep l...
Source: SharpBrains - May 19, 2022 Category: Neuroscience Authors: SharpBrains Tags: Brain/ Mental Health Technology & Innovation AD AD biomarker Alzheimer’s Disease brain-aging Cognitive-impairment deep learning frontotemporal dementia Lewy body dementia mild-cognitive-impairment neurodegenerative neurodegenerat Source Type: blogs
Collaborative neuroimaging initiative BrainChart helps chart how brains change across the lifespan
This article was originally published on The Conversation.
The post Collaborative neuroimaging initiative BrainChart helps chart how brains change across the lifespan appeared first on SharpBrains. (Source: SharpBrains)
Source: SharpBrains - April 26, 2022 Category: Neuroscience Authors: The Conversation Tags: Brain/ Mental Health Technology & Innovation ageing brain changes brain charts brain scans brain-development computerised tomography lifespan magnetic resonance imaging mental illness neuroimaging Source Type: blogs
vMap Mapping Technology for Cardiac Arrhythmias: Interview with Mike Monko, CEO of Vektor Medical
Vektor Medical, a medtech company based in San Diego, created the vMap system, a mapping solution for cardiac arrhythmias. The system is the first to identify arrhythmia sources anywhere in the heart, including the septal wall, outflow tracts, and all four chambers. The company reports that the technology takes less than three minutes to provide a result.
The system uses 12-lead electrocardiogram (ECG) data to pin-point the location of an arrythmia, and so is non-invasive. Accurate mapping of arrythmia sources is important in ensuring that subsequent treatment is successful. In the case of ablation for atrial fibrillati...
Source: Medgadget - April 4, 2022 Category: Medical Devices Authors: Conn Hastings Tags: Cardiac Surgery Cardiology Exclusive Radiology afib vektormedical Source Type: blogs
Fight Aging! Newsletter, April 4th 2022
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter,
please visit:
https://www.fightaging.org/newsletter/
Longevity Industry Consulting Services
Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - April 3, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Inflammatory Changes in Bone Marrow as a Precursor to Atherosclerosis
Atherosclerosis is in part an inflammatory condition, drive by the chronic inflammation of aging. It arises from dysfunction in the macrophage cells responsible for clearing out lipids from blood vessel wall, and inflammatory signaling makes those macrophages less able to perform that maintenance. There are other issues affecting the macrophages, not least of which being that they become overwhelmed by the large amount of cholesterol present in established atherosclerotic lesions, but inflammation is a noteworthy contribution to the problem.
The association between inflammation and atherosclerosis is well establis...
Source: Fight Aging! - March 29, 2022 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
