Validation of contemporary electrocardiographic indices of area at risk and infarct size in acute ST elevation myocardial infarction (STEMI)

Electrocardiographic (ECG) methods to assess area at risk (AAR) and infarct size (IS) in patients with ST-elevation myocardial infarction (STEMI) have been previously established but not validated against contemporary benchmark Cardiac Magnetic Resonance (CMR) measures. We compared ECG-determined and CMR-determined measures for (a) AAR, (b) IS, and (c) myocardial salvage.
Source: International Journal of Cardiology - Category: Cardiology Authors: Source Type: research

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In conclusion, supraphysiological doses of protein supplements, anabolic steroids, and other nutritional products bear a risk factor for CAD.
Source: Journal of Cardiology Cases - Category: Cardiology Source Type: research
Publication date: Available online 3 December 2019Source: Journal of Cardiology CasesAuthor(s): Kazunori Takemura, Masaharu Maegaki, Ryuta Nakamura, Tetsuro Takase, Kaneto Mitsumata, Tomoaki Tanabe, Imun TeiAbstractSpontaneous coronary artery dissection (SCAD) usually occurs in women, which can result in significant morbidities. A 38 year-old obese man who is currently smoking was referred to our hospital with chest pain. His electrocardiography and echocardiography suggested myocardial infarction in proximal region of left coronary artery. Emergent coronary angiography revealed 99% stenosis at mid portion of LAD and diffu...
Source: Journal of Cardiology Cases - Category: Cardiology Source Type: research
AbstractBackgroundThe prognostic value of myocardial perfusion imaging (MPI) in patients with known coronary artery disease (CAD) and high exercise capacity is still unknown. We sought to determine the MPI additional prognostic value over electrocardiography (ECG) stress testing alone in patients with known CAD who achieved  ≥ 10 metabolic equivalents (METs).Methods and ResultsWe evaluated 926 patients with known CAD referred for MPI with exercise stress. Patients were followed for a mean of 32.4  ± 9.7 months for the occurrence of all-cause death or nonfatal myocardial infarction...
Source: Journal of Nuclear Cardiology - Category: Nuclear Medicine Source Type: research
An elderly woman with a h/o myocardial infarction presented with 2 hours of burning substernal chest pain.Here is her ECG:Is there an OMI?What is the best next strategy to assess for OMI?ECG description:There is sinus rhythm.  There are well-formed Q-waves in inferior leads, with some minimal ST Elevation, and reciprocal ST depression in aVL.  The STE with STD in aVL is typical of inferior OMI, right?Exceptfor the well-formed Q-waves, which suggest anold inferior MI.There is also anearly R/S transition in precordial leads, with alarge R-wave in V2.  This suggestsprevious posterior MI as well.  (Bayes de...
Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
ConclusionsFor patients with hypertension, the presence in the baseline electrocardiogram of complete left bundle branch block or a pattern of ventricular overload identifies a population at increased cardiovascular risk.ResumenObjetivoLa hipertrofia ventricular izquierda es el marcador de daño de órgano diana más frecuente en la hipertensión arterial. Habitualmente se realiza un ECG para su identificación. El objetivo de este trabajo es analizar la utilidad pronóstica de otras alteraciones electrocardiográficas en pacientes hipertensos, más allá de la hipertro...
Source: Revista Clinica Espanola - Category: Internal Medicine Source Type: research
Publication date: 15 December 2019Source: Life Sciences, Volume 239Author(s): Xuwen Zhai, Xi Qiao, Li Zhang, Dongming Wang, Lijun Zhang, Qilong Feng, Bowei Wu, Jimin Cao, Qinghua LiuAbstractAimsArrhythmogenesis of chronic myocardial infarction (MI) is associated with the prolongation of action potential, reduction of inward rectifier potassium (IK1, Kir) channels and hyper-activity of Calcium/calmodulin-dependent kinase II (CaMKII) in cardiomyocytes. Zacopride, a selective IK1 agonist, was applied to clarify the cardioprotection of IK1 agonism via a CaMKII signaling on arrhythmias post-MI.MethodsMale SD rats were implanted...
Source: Life Sciences - Category: Biology Source Type: research
ConclusionsCompared to other related works, use of PPG signal for MI detection is studied in this research for the first time. The promising result obtained establishes the utility of PPG signal for MI detection with a potential of implementation in the personal healthcare systems.
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research
In conclusion, the results of the study showed that the increase in personal pollutant exposure would affect cardiac autonomic control function of healthy older residents in metropolitan areas, and the susceptibility of cardiovascular effects was higher than that of healthy young people. Since the small sample size would limit the generalizability of this study, more studies with larger scale are warranted to better understand the HRV effects of simultaneous PM and other pollution exposures for subpopulation groups.
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
Conclusions: Both MSC sources proved to be equally efficient in the assessed parameters. PMID: 31745418 [PubMed]
Source: Oman Medical Journal - Category: Middle East Health Tags: Oman Med J Source Type: research
A 40-something suffered witnessed ventricular fibrillation, had bystander CPR, but could not be defibrillated after 4 attempts.He was transferred to the ED and put on extracorporeal life support (ECLS, ECMO).A series of ED Transesophageal echos (TEE) was done over 23 minutes before an ECG was recorded.  We usually do not get ROSC before angiography in these cases, and recording the ECG is not as important as usual, because we send them all to the cath lab by our ECMO protocol.This is before another defibrillation attempt, during chest compressions:Orientation:The probe is in the esophagus, right next to the left ...
Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
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