Role of Cardiac Magnetic Resonance Imaging in Patients with Idiopathic Ventricular Arrhythmias.

Role of Cardiac Magnetic Resonance Imaging in Patients with Idiopathic Ventricular Arrhythmias. Curr Cardiol Rev. 2018 Sep 24;: Authors: Muser D, Santangeli P, Selvanayagam JB, Nucifora G Abstract Ventricular Arrhythmias (VAs) may present with a wide spectrum of clinical manifestations ranging from mildly symptomatic frequent premature ventricular contractions to life-threatening events such as sustained ventricular tachycardia, ventricular fibrillation and sudden cardiac death. Myocardial scar plays a central role in the genesis and maintenance of re-entrant arrhythmias which are commonly associated with SHD such as ischemic heart disease, healed myocarditis and non-ischemic cardiomyopathies. However, the arrhythmogenic substrate may remain unclear in up to 50% of the cases after a routine diagnostic workup comprehensive of 12-lead surface ECG, transthoracic echocardiography and coronary angiography/computed tomography. Whenever any abnormality cannot be identified, VAs are referred as to "idiopathic". In the last decade, cardiac magnetic resonance (CMR) imaging has acquired a growing role in the identification and characterization of myocardial arrhythmogenic substrate, not only being able to accurately and reproducibly quantify biventricular function, but, more importantly, providing information about the presence of myocardial structural abnormalities such as myocardial fatty replacement, myocardial oedema, and necrosis/ fibrosis, which may ...
Source: Current Cardiology Reviews - Category: Cardiology Tags: Curr Cardiol Rev Source Type: research

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We report the first case of colloid goiter diagnosed using EUS-B- FNA technique. A 77-year-old man presented with ophthalmic symptoms and an incidental finding of lung nodule on chest x-ray. The computed tomography of thorax revealed a left upper lobe nodule and an oval shaped left paratracheal lesion near left pole of thyroid gland. EUS-B- FNAC was performed which lead to the diagnosis of colloid goiter. PMID: 32447948 [PubMed - in process]
Source: Monaldi Archives for Chest Disease - Category: Respiratory Medicine Tags: Monaldi Arch Chest Dis Source Type: research
ConclusionThis study identified the most accurate and reliable machine learning methods, which could enhance the application of radiomics methods in the precision of diagnosis of NPC.
Source: Molecular Imaging and Biology - Category: Molecular Biology Source Type: research
ConclusionsThe results demonstrate that even subtle changes in vessel morphology can be noninvasively quantified. This is of great interest for AD, but also to other models of neurodegenerative diseases involving macrovascular dysfunction.
Source: Molecular Imaging and Biology - Category: Molecular Biology Source Type: research
Discussion Tachycardia is a rapid heart rate that is above normal for age and level of exertion. Tachycardia is common, particularly sinus tachycardia due to normally encountered circumstances such as pain, fever or exercise. It is usually a normal physiologic process but sustained tachycardia often indicates a potentially abnormal underlying cause. Sinus tachycardia has a rapid heart rate with normal P waves and P-R intervals and variations from moment to moment and respiration. Generally it is not over 200 beats/minute. Vagal stimulation can slow the heart rate; this is a gradual slowing, not an abrupt slowing seen in ...
Source: PediatricEducation.org - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
Conclusions: AED reliably identifies the underlying lethal ventricular arrhythmias in addition to aborting SCD.What is Known:•Although infrequent in children, sudden cardiac death (SCD) is often an unexpected and tragic event. The etiology is diverse and sometimes remains unknown despite extensive investigations.•Automated external defibrillator (AED) is both therapeutic in aborting SCD and diagnostic in identifying the underlying lethal ventricular arrhythmias. However, the diagnostic aspect of AED is under-acknowledged by most medical providers.What is New:•Four of 25 patients (16%) were initially managed ...
Source: European Journal of Pediatrics - Category: Pediatrics Source Type: research
AbstractPurpose of ReviewVentricular arrhythmias (VAs) are a significant cause of morbidity and mortality in patients with cardiomyopathy (CM). This review focuses on ventricular tachycardia (VT) management in uncommon causes of heart disease, such as inflammatory and infiltrative CMs.Recent FindingsIntegration of advanced cardiac imaging modalities, such as cardiac magnetic resonance imaging (MRI) and positron emission tomography (PET), into diagnostic evaluation of patients with CM may unmask abnormal myocardial substrate in almost half of patients presenting with VAs. Stepwise approach to management of VAs in cardiac sa...
Source: Current Cardiovascular Risk Reports - Category: Cardiology Source Type: research
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Source: Cardiophile MD - Category: Cardiology Authors: Tags: General Cardiology Source Type: blogs
This study aimed to investigate the association between myocarditis and the incidence of VT and mortality. We also aimed to determine the independent predictors that increased the VT risk in those patients. From 2000 to 2004, 13,250 patients with a history of myocarditis were identified from the Taiwan National Health Insurance Research Database. The same number of individuals without heart disease with a matched sex and underlying diseases were selected as the control group. The long-term risks of life-threatening ventricular arrhythmias and mortality in patients with a history of myocarditis were investigated by an adjus...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Observational Study Source Type: research
Background— Ventricular tachyarrhythmias are characteristic of giant cell myocarditis, but their true incidence, predictors, and outcome are unknown. Methods and Results— Our work involved 51 patients with giant cell myocarditis (35 women) aged 52±12 years. Their medical records were reviewed for history, results of laboratory and imaging studies, and occurrence of serious cardiac events, including life-threatening ventricular tachyarrhythmias. Sudden cardiac death (fatal or aborted) was the primary end point of our analyses, whereas the composite of sudden cardiac death and ventricular tachycardia requ...
Source: Circulation: Arrhythmia and Electrophysiology - Category: Cardiology Authors: Tags: Sudden Cardiac Death, Primary Prevention, Inflammatory Heart Disease Original Articles Source Type: research
Conclusion Our case strongly suggests that sinus node dysfunction of lithium can occur even with lithium levels in the therapeutic range and in short-term “acute” treatment. Therefore, patients receiving lithium therapy should have their pulse monitored regulatory for any rhythm abnormalities, and lithium should be discontinued if rhythm disturbances occur during treatment. Further, when prescribing lithium, clinicians should regularly monitor their patients’ ECG and serum lithium levels to prevent serious or fatal complications. Acknowledgment The authors would like to thank our colleagues throughout Kos...
Source: Innovations in Clinical Neuroscience - Category: Neuroscience Authors: Tags: Case Report Current Issue Psychiatry Psychopharmacology Schizophrenia cardiac toxicity ECG Lithium sinus node dysfunction therapeutic level Source Type: research
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