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Contrast-Associated Acute Kidney Injury: Risk Assessment and Prevention

…the usual course. Severe AKI requiring dialysis is uncommon except in the presence of substantial pre existing CKD, particularly when congestive heart failure or other…

ST-Elevation Myocardial Infarction Complicated by Cardiogenic Shock

…pre existing diabetes, previous myocardial infarction, or heart failure. Mechanical disruption must be considered whenever abrupt circulatory collapse occurs after STEMI. Rupture may involve the…

ST-Segment Elevation Myocardial Infarction: Diagnosis and ECG Criteria

…infarction has occurred The extent and degree of myocardial involvement The anatomical territory, including anterior, inferoposterolateral or right ventricular involvement Pre existing abnormalities such as…

Atrial Fibrillation in the Critically Ill Patient

…common tachyarrhythmia requiring treatment in decompensated heart failure (DHF). In the critically ill patient, AF may be pre existing, newly detected for the first time…

Atropine: Dosing in Bradycardia and Its Limitations

…generation or conduction failure. The pathophysiology of these events may stem from reversible causes, including hypovolemia, hypoxia, cardiac tamponade, tension pneumothorax, preexisting acidosis, drug overdose…

ECG changes caused by antiarrhythmic drugs, beta blockers & calcium channel blockers

…His bundle, Purkinje system) Preexisting AV block, bundle branch block or fascicular block may become worse. Particularly, the degree of AV block may increase. QRS…

Carotid Artery Disease: Screening, Medical Therapy and Revascularisation

…or other atherosclerotic disease; diabetes and other cardiovascular risk factors; smoking, hypertension, hypercholesterolaemia, and sedentary behaviour; family history, particularly in the broader assessment of peripheral…

Hypertensive crisis: drugs and doses

…pre eclampsia or eclampsia. The blood pressure is often at least 180/120 mmHg, but no absolute threshold defines the condition. A rapid rise in…

Hypertensive Emergency and Urgency: Differentiation and Treatment

…intoxication, or other sympathomimetic exposure, including methamphetamine. Abrupt withdrawal of antihypertensive medication, particularly clonidine, can also precipitate a hypertensive crisis. Pregnancy Hypertensive emergencies in pre

Adenosine for tachyarrhythmias (AVNRT, AVRT, NCT)

…complexes due to bundle branch blocks or other conduction defects. However, in rare instances, it may be due to pre excited atrial fibrillation (i.e…

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