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Chest Pain in the Emergency Department: Diagnostic Pathways

…upper back, abdomen, or epigastrium. Dyspnoea, nausea, vomiting, diaphoresis, fatigue, faintness, and other symptoms may occur without chest pain and should be considered anginal equivalents…

Hypertensive crisis: quick reference for acute blood pressure lowering

…4. Measure the blood pressure in both arms at the first assessment, particularly in chest pain, back pain or suspected acute aortic syndrome. 5. Use…

Tissue Doppler (Tissue Velocity Imaging)

…generates reflections with high amplitude and low Doppler shift. To analyze reflections from the myocardium, the ultrasound machine filters out all other reflected sound waves…

Eletrical alternans: the ECG in pericardial effusion & cardiac tamponade

…accumulates in the pericardial space. Intrapericardial pressure may reach the point where the ventricles and atria can no longer relax normally, and the ventricles may…

Pericardiocentesis

…With ultrasound guidance, the point at which the fluid lies most superficially is chosen and the needle is followed all the way in, which has…

Artifacts in ultrasound imaging

…refraction, directing the ultrasound to an area interrogated simultaneously by other sound waves (Figure 6). The refracted ultrasound is then reflected back to the lens…

ST elevation myocardial infarction (STEMI) without ST elevations on 12-lead ECG

…among these patients, roughly 10% have hemodynamically significant right ventricular infarction. Hemodynamic effects of right ventricular infarction include low cardiac output, hypotension, sensitivity to drugs…

Risk factors for sudden cardiac arrest

…cardiac arrest ( Yan et al ). The low survival reflects the sudden and hyperacute nature of the condition. This has prompted researchers to develop strategies and…

Other ECG changes in ischemia and infarction

…ischemia. Inverted U waves are even more typical of ischemia (but the sensitivity is low). U wave changes always accompany other ischemic ST T changes…

LDL Cholesterol Targets Across Cardiovascular Risk Categories

Cardiology Definition and pathophysiology Low density lipoprotein cholesterol (LDL C) is the principal therapeutic target in lipid management because LDL and other apolipoprotein B containing…

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