Scientist-led Exercise Testing Is Safe With Diagnostic Interpretation Equivalent to a Cardiologist
Background: The implementation of nonphysician-led exercise stress testing (EST) has increased over the last 30 years, with endorsement by many cardiovascular societies around the world. The comparable safety of nonphysician-led EST to physician-led studies has been demonstrated, with some studies also showing agreement in diagnostic preliminary interpretations. Objective: The study aim was to firstly confirm the safety of nonphysician-led EST in a large cohort and secondly compare the interobserver agreement and diagnostic accuracy of cardiac scientist and junior medical officer (JMO)-led EST reports to cardiology consultant overreads. Methods: All ESTs performed between 1/7/2010 and 30/6/2013 were included in the study for JMO led tests (n = 1332). ESTs performed for the investigation of coronary artery disease between 1/7/2013 and 30/6/2016 were included for scientist-led testing (n = 1904). Results: There was one adverse event, an ST segment myocardial infarction during the recovery phase of a JMO-led EST. Interobserver agreement was superior between the cardiologist and the scientist compared with the cardiologist and the JMO (P
Increased mean platelet volume (MPV) has been associated with elevated risk of stroke and myocardial infarction in the general population and stroke/pump thrombosis in Heartmate II recipients. It has been proposed that contact with foreign surfaces and centrifugation promote prothrombotic states with platelet activation and increased MPV. An association between MPV and outcomes of patients treated with percutaneous short-term circulatory devices has not been investigated.
Anemia may confer a poor prognosis among patients with acute coronary syndrome. However, contemporary data are lacking on the prognostic importance of anemia in patients with left ventricular (LV) systolic dysfunction after acute myocardial infarction (AMI).
In-hospital mortality of patients with cardiogenic shock complicating ST-elevation myocardial infarction (STEMI-CS) ranges from 30% to 50%. The impact of nosocomial infection(NI) is not well addressed in these patients.
Right heart failure (RHF) is a severe complication of myocardial infarction (MI). For critical patients in cardiogenic shock after MI temporary circulatory support (TCS) is necessary to provide sufficient cardiac output. The ProtekDuo ® dual-lumen cannula provides a minimally invasive option for TCS, with the TandemHeart® pump or a CentriMag™ assist device. Here, we present the first results with the ProtekDuo® cannula in the setting of acute MI with subsequent RHF as temporary right ventricular assist device (t-RVAD).
Although various temporary mechanical circulatory support devices are utilized during acute myocardial infarction cardiogenic shock (AMI CS), comparisons of interdevice outcomes remain uncertain. We sought to determine patient characteristics and outcomes between venoarterial extracorporeal membrane oxygenation (VA ECMO) and Impella supported patients during AMI CS.
This study aimed to establish a large animal model of RI to test C-MIC application on RI after cardiopulmonary bypass (CPB).
In conclusion, a JEM can be a very handy too l for exposure assessment in occupational epidemiology, particularly in large-scale studies with limited occupational information. When selecting the most suitable exposure assessment method, however, researchers should always remain critical. Know when a JEM has added value and recognize its limita tions. References 1. Hoar SK, Morrison AS, Cole P, Silverman DT. An occupation and exposure linkage system for the study of occupational carcinogenesis. J Occup Med. 1980;22(11):722-6. 2. Pannett B, Coggon D, Acheson ED. A job-exposure matrix for use in population based studies in ...
Heart attack symptoms include chest pain, difficulty breathing, and an overwhelming feeling of anxiety. But you could also be at risk of a deadly myocardial infarction and heart disease if you have this subtle warning sign on your skin - do your arms or legs have these coloured patterns?
Mesenchymal stem cell therapies vary widely in their ability to influence regeneration, though they fairly reliably reduce chronic inflammation in older patients. One challenge is that there is no standard on what constitutes a mesenchymal stem cell; it is a category so broad as to be almost meaningless. Further, two clinics performing what is ostensibly the same protocol using cells from the same source can produce widely divergent outcomes. In most cases, near all transplanted cells die, and the benefits obtained for the patient derive from signaling produced by the stem cells in the short period of survival following tr...
Researchers here identify miR-155-5p as a potential target to improve mitochondrial function. This microRNA is upregulated with age, and appears to inhibit mitochondrial fission. That in turn prevents the cellular maintenance process of mitophagy from clearing out worn and damaged mitochondria efficiently enough to prevent loss of function. Since mitochondria provide the chemical energy store molecules that power all cellular operations, this has downstream consequences on cell and tissue function, including higher levels of cellular senescence. Aging impairs the functions of human mesenchymal stem cells (MSCs), t...