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Cardiac arrest during pregnancy and childbirth

…the woman's left side (Figure 1). Additional offloading of the vena cava can be accomplished using a wedge board (or any hard material) to…

Injection technique — intramuscular, subcutaneous and intradermal

…Preparation and equipment Hand disinfection; gloves where there is a risk of blood contact. An alcohol or chlorhexidine swab. Let the skin dry completely before…

Cardiac Tamponade: Recognition and Pericardiocentesis

…mass. Tamponade occurs when intrapericardial pressure equals or exceeds right atrial pressure. The haemodynamic consequences are progressive impairment of right and left sided filling, reduced…

Joint aspiration

…5 mg/mL: clean with 3–4 swabs in wide circles and let it dry for a couple of minutes before the needle is inserted…

The physiology of cardiopulmonary resuscitation (CPR)

…cardiopulmonary resuscitation (CPR) differ substantially from normal circumstances. The purpose of CPR is to create large variations in intrathoracic pressure by compressing, decompressing and ventilating…

ST-Elevation Myocardial Infarction Complicated by Cardiogenic Shock

…obstruction may persist despite successful PCI because of endothelial dysfunction, leukocyte and platelet interaction, distal thrombotic debris, cardiomyocyte swelling, interstitial edema, and inflammatory extravascular compression…

Cardiac tamponade causing cardiac arrest

…challenging to drain using pericardiocentesis. In cases of cardiac tamponade, conventional chest compressions are ineffective. This is explained by the elevated intrapericardial pressure due to…

Coronary Anomalies and Myocardial Bridging

…myocardial contractility and heart rate. Coronary compression and a Venturi or “suction” effect have been proposed as mechanisms of inducible ischaemia. The functional impact depends…

Post-Infarction Pericarditis and Dressler Syndrome

…cause: Diminished heart sounds Disappearance of the friction rub Loss of the apical impulse Electrical alternans on the ECG Compression of the left lung base

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…

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