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Post-Infarction Mechanical Complications: Ventricular Septal, Free-Wall, and Papillary Muscle Rupture

Echocardiography Myocardial ischemia and infarction Definition and pathophysiology Post infarction mechanical complications are structural disruptions of acutely infarcted myocardium occurring most often during the first…

Physics of ultrasound

…fluids in the human body. Sound waves arise when a sound source generates mechanical vibrations in the particles of the medium. These vibrations continue to…

Terminology of sudden cardiac arrest and resuscitation

…foundation for understanding subsequent chapters. SCA (Sudden Cardiac Arrest) : Sudden and unexpected cardiac arrest with loss of mechanical cardiac function. Results in loss of consciousness…

The ischemic cascade

…this sequence, before mechanical dysfunction ( i.e. left ventricular systolic or diastolic dysfunction) or electrical changes (ST T changes on ECG) become apparent. In contrast…

Anticoagulants: quick reference for dosing, renal adjustment and reversal

…target INR 2.0 3.0 A mechanical valve may require a higher target Doses in venous thromboembolism Treatment doses in deep vein thrombosis and…

Arterial line

…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…

Atrial fibrillation: quick reference for emergency management

…contraindicated, for example in asthma Contraindicated in impaired left ventricular function and together with an intravenous beta blocker Digoxin In heart failure or hypotension, or…

Edrophonium test

…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…

Warfarin therapy

…whoever starts the drug is responsible for the first week. Indications A mechanical valve prosthesis — warfarin is mandatory, and direct oral anticoagulants (DOACs) are contraindicated…

Acute Pulmonary Embolism: Risk Stratification and Reperfusion

…dysfunction. Catastrophic or “supermassive” PE refers to refractory cardiogenic shock or the need for ongoing cardiopulmonary resuscitation. Mechanical circulatory support, including extracorporeal membrane oxygenation (ECMO)…

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