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The physiology of cardiopulmonary resuscitation (CPR)

…salvage the brain, and is therefore of prime importance. This is achieved by performing effective chest compressions and decompressions that result in perfusion of cardiac…

Terminology of sudden cardiac arrest and resuscitation

…flow time : The duration (minutes) from circulatory collapse to initiation of CPR. During no flow there is no cerebral perfusion and brain damage progresses rapidly…

Eletrical alternans: the ECG in pericardial effusion & cardiac tamponade

…affects ventricular relaxation (and thus ventricular filling). This may even lead to compression of the ventricles during diastole; cardiac tamponade occurs if excess pericardial fluid…

ST-Segment Elevation Myocardial Infarction: Diagnosis and ECG Criteria

…and tissue inflammation produce extravascular compression. In the most severe form, termed no reflow, structural and functional microvascular impairment persists despite restoration of epicardial flow…

Leg ulcers — wound debridement and compression therapy

…0.5 or toe pressure < 30 mmHg. Decompensated heart failure — compression of both legs acutely increases preload. Untreated deep vein thrombosis in the acute…

Epistaxis — compression, cautery and anterior nasal packing

…Continued bleeding despite compression and cautery (packing). Contraindications Cautery: Type Contraindication : : Absolute The source of bleeding cannot be identified Relative A pacemaker or ICD when…

Ankle-brachial index (ABI)

…patient from tolerating compression. Preparation and equipment Equipment: a handheld Doppler probe 5–10 MHz, ultrasound gel, a blood pressure cuff of the correct size…

What is the difference between cardioversion and defibrillation for arrhythmias?

…antero lateral) does not affect success, but active compression of the pads lowers defibrillation thresholds and improves success, and maximum fixed energy shocks outperform low…

Cardiac arrest during pregnancy and childbirth

…chest compressions remain effective. Although the empirical evidence supporting these interventions may be limited, they are consistently endorsed by expert panels. In the event of…

ST-Elevation Myocardial Infarction: Diagnosis and Electrocardiographic Criteria

…interstitial edema, and tissue inflammation promote extravascular compression, exacerbating myocardial injury. Clinical Presentation and Symptoms In up to one half of STEMI cases, a precipitating…

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