…EMG about 95 %). Contraindications Known hypersensitivity to edrophonium. Mechanical obstruction of the bowel or the urinary tract. Marked bradycardia, sick sinus syndrome or high grade…

…a new cardiac murmur, or jugular venous distension in the days after MI should prompt immediate consideration of a mechanical complication. Clinical deterioration may be…

…will transfer the mechanical (pressure) energy to the new medium, which may also start to vibrate (Figure 1). Figure 1. The principle of how sound…

…the use of chest compressions, as well as possibly ventilation and automatic external defibrillator (AED). Return of Spontaneous Circulation (ROSC) : Return of mechanical cardiac function…

Cardiology The ischemic cascade The ischemic cascade describes the sequence of events during myocardial ischemia, beginning with perfusion abnormalities and ultimately leading to chest pain…

…agents Platelet transfusion has weak evidence; discuss with the on call coagulation service Always in parallel: mechanical control of bleeding, tranexamic acid where it is…

…cardiac arrest. Repeated blood gases, for example during mechanical ventilation or severe metabolic derangement. Major surgery with expected blood loss or large volume shifts. Patients…

…without delay, in any of the following: A systolic blood pressure < 90 mmHg caused by the arrhythmia. Ongoing myocardial ischaemia with chest pain and…

…Warfarin has a narrow therapeutic index, a half life of several days and more than a hundred clinically relevant interactions. What determines whether the treatment…

…Mechanical circulatory support, including extracorporeal membrane oxygenation (ECMO), may be required in this setting. Clinical presentation and symptoms The clinical presentation reflects the severity of…

…leads [7]. These stricter parameters correlate more closely with abnormal LV mechanical function and the potential benefit of resynchronization pacemaker therapy [7]. R Wave Peak…

…Antithrombotic therapy may reduce embolization of thrombotic or atheroembolic material, but pharmacological and mechanical strategies directed specifically at reperfusion injury have not generally demonstrated sufficient…

…Haemodynamic instability or cardiogenic shock Life threatening arrhythmias or cardiac arrest after presentation Mechanical complications of myocardial infarction Recurrent dynamic ECG changes suggestive of ischaemia…

…to additional mechanical revascularization. Despite treatment with antianginal drugs and PCI or CABG, daily or weekly angina remains present in approximately 2%–24% of patients…

…accounting for approximately 80% of cases. Other causes include acute mechanical complications—particularly ventricular septal defect (VSD) and papillary muscle rupture with acute severe mitral…

…Mechanical or pump failure complications , including heart failure and cardiogenic shock. Most out of hospital deaths occur early and are commonly related to ventricular fibrillation…

…treat (NNT) for the ACLS specific interventions is much higher or uncertain, meaning that the efficacy of these interventions is much lower or uncertain. Indeed…

…intimate understanding of the underlying pathophysiology, which is classically framed by Virchow’s triad: blood stasis, endothelial dysfunction, and hypercoagulability [1] [2] . Mechanical stasis in…

…g skeleton, calcifications, mechanical heart valves) and reflect virtually all sound waves, leaving too few waves to explore the area behind the reflector. This results…

…endotracheal intubation, mechanical chest compressions, targeted temperature management, etc.) and are much less effective in terms of the number needed to treat (NNT). The Number…

…ultrasound waves, they begin to vibrate and these mechanical vibrations are converted into electric current that is sent back to the ultrasound machine, where the…

…replacement can be performed with biological or mechanical prostheses. The former is preferred due to the lower risk of thrombosis and evidence demonstrating long term…

…the R wave The shock is delivered immediately Why Avoids the vulnerable phase of the T wave There is no R wave to synchronise to…

…heparin unless contraindicated Head of the bed 30–45° Stress ulcer prophylaxis During mechanical ventilation, in coagulopathy, or with a history of gastrointestinal bleeding Refeeding…

…Relative Skin infection, herpes zoster or burns over the puncture site Relative Mechanical ventilation with a high PEEP (an increased risk of pneumothorax; ultrasound guidance…

…mechanical tricuspid prosthesis the lead must not be passed through the valve. The order of management in acute bradycardia Atropine is given in doses of…

… } Interpretation of CHADS VASc score and decisions on anticoagulation Men Women Points Recommendation Evidence Recommendation Evidence 0 No treatment Low No treatment High 1 Oral…

…instability or cardiogenic shock recurrent or ongoing chest pain refractory to medical treatment life threatening arrhythmias or cardiac arrest mechanical complications of acute myocardial infarction…

…matrix constituents. The balance between synthesis and degradation influences plaque architecture and mechanical stability. Atherosclerotic lesions commonly arise at sites of disturbed flow, including branch…

…mechanical complications, and ischaemia related ventricular failure as potential causes of shock. Patients with moderate to severe chronic kidney disease have a higher burden of…

…congestion may be important mechanisms. Diuretics relieve the hemodynamic consequences of congestion by producing a negative sodium and water balance. They can reduce jugular venous…

…Incomplete lesion preparation Persistent stenosis within the treated segment Mechanical factors are particularly important because correction of the underlying problem is necessary for durable treatment…

…and reduced LV systolic function. The principal mechanisms are the combination of an abnormal thrombogenic endocardial surface and blood stasis. During the acute infarction phase…

…care capabilities, including mechanical circulatory support and transplantation, is warranted. Diagnostics Hemodynamic and functional monitoring is central to the safe administration of these agents. Continuous…

…small vessels, multivessel disease, bifurcation lesions, treatment of acute myocardial infarction Procedural and mechanical Stent underexpansion, incomplete wall apposition, residual inflow or outflow disease, edge…

…does not determine the anticoagulation indication. Previous stroke or TIA. The presence of mitral stenosis, a mechanical heart valve or hypertrophic cardiomyopathy. Heart failure, hypertension…

…or cardiac surgical sympathetic denervation can be performed to mechanically reduce sympathetic output [4]. Evaluation of Treatment and Alternatives for Drug Failure The provided context…

…explain the marked differences in characteristics and outcomes across the data sources for out of hospital cardiac arrest (OHCA) and in hospital cardiac arrest (IHCA…

…spread of an electrical impulse is therefore directly coupled to a mechanical event; this is referred to as electromechanical coupling . The electrical conduction system of…

…resuscitated cardiac arrest, cardiac transplantation or mechanical circulatory support, nonfatal myocardial infarction, transient ischemic attack or stroke, and initiation of renal replacement therapy. The study…

…block): definition, causes, diagnosis & management This article covers the fundamental principles of atrioventricular (AV) blocks, which are classified into three types: first degree, second degree…

…acute phase of STEMI. Death due to ventricular dysfunction, or mechanical complications, is much less common in the acute phase. The chain of care in…

…cordis occurs as a result of a blunt, non penetrating blow to the chest, typically over the precordium. The mechanical impact can induce ventricular fibrillation…

Echocardiography Structure and contractile function of myocardial fibers The left ventricular wall can be subdivided into several layers. These layers are similar to those seen…

…function. A large body of science has demonstrated that these parameters are highly interdependent and rather complex. Indeed, myocardial mechanics constitute a whole research field…

…The majority of these are genes encoding desmosomal proteins . The desmosome is a component of the intercalated disc that connects myocardial cells mechanically and electrically…

…by a deeper understanding of myocardial mechanics and clinical outcomes. The 2022 American Heart Association/American College of Cardiology/Heart Failure Society of America (AHA…

…is increased resistance in the aortic valve itself, due to the reduced area of the valvular orifice. Both aortic stenosis and hypertension result in increased…

Echocardiography Diastolic function and echocardiographic assessment The importance of systolic function can be understood on an intuitive basis. Consider the fact that the left ventricle…

…chronic value [4]. The grading must not be used mechanically. A patient with a plasma potassium of 6.2 mmol/L, new bradycardia and acute…

…aortic regurgitation gradually leads to impaired contractile function and the development of myocardial fibrosis. Contractile dysfunction further aggravates the regurgitation (the regurgitation volume increases). Mechanically…

…electrically and mechanically, along their long axis. This cell architecture is referred to as a syncytium , which implies that the entire network of cells functions…

…will have critical CHD, and the pulse oximetry test will correctly identify five of these with critical CHD ( Plana et al ). Minor defects can go…

…provide important insights into left ventricular mechanics. Regional differences in contractile function are of utmost importance, particularly in the setting of (confirmed or suspected) myocardial…