…Ventricular contraction has ceased or unable to generate perfusion. SCD (sudden cardiac death) : Death resulting from sudden cardiac arrest (SCA). Cardiovascular collapse : Sudden cessation of…

…a genetic mutation in the RYR1 receptor, resulting in persistent muscle contraction upon administration of halogenated anesthetic agents. As an idiosyncratic response to substances such…

…Proliferation and accumulation of tissue within the stent progressively reduce the lumen. The stent scaffold prevents the external constriction that characterizes restenosis after balloon angioplasty…

ECG Principles of myocardial excitability Myocardium is excitable not only by action potentials originating in the sinus node, but also by external electrical stimuli that…

…myocardium may be excited by external electrical stimuli that drive the cells to threshold. Stimulation threshold is the minimum amount of energy required to reach…

…stratification and prognosis For patients with low or moderate pre test likelihood of obstructive CAD, CCTA or functional imaging should generally be preferred when available…

…that should make them seek help immediately. Indications An undisplaced or reduced fracture to be treated conservatively. Immobilisation after reduction of a dislocation. Immobilisation of…

…lumen and visualization of the external elastic membrane (EEM). IVUS is consequently useful for determining vessel size, plaque burden, and the dimensions of lesions that…

…transient loss of consciousness was due to syncope, identify the cause, and assess the risk for future episodes and serious harm. This evaluation should include…

…scene. If an AED (automatic external defibrillator) has been connected, it should be interrogated (if possible) to determine whether it has recorded any shockable rhythms…