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Indications and contraindications for myocardial perfusion imaging

…have specific contraindications: Adenosine, Dipyridamole, Regadenoson : Should be avoided in patients with active bronchospasm, severe hypotension, or high degree AV block. Caffeine and other methylxanthines…

Mechanisms of cardiac arrhythmias: from automaticity to re-entry (reentry)

…to acquire an understanding of the overarching concepts. Arrhythmogenesis (mechanisms of arrhythmias) is presented in this chapter, followed by in depth discussions of specific arrhythmias…

Stent Thrombosis: Timing, Causes, Diagnosis, and Prevention

…implantation should always be specified. Coronary arterial thrombi are predominantly platelet rich because they form under high shear conditions. Disruption of an atherosclerotic plaque or…

Atrial flutter: classification, causes, ECG criteria and management

…In the vast majority of cases, the re entry circuit in atrial flutter is located in the right atrium and it typically loops around the…

Acute coronary syndrome: quick reference for loading doses and time targets

…begins in parallel with the diagnostic work up. Obtain an interpretable 12 lead ECG within 10 minutes of first medical contact, attach continuous rhythm monitoring…

Soft tissue corticosteroid injection

…10–20 mg 20–40 mg 1–2 mL The doses follow the summaries of product characteristics: Lederspan specifies 10–20 mg periarticularly in bursitis…

Other ECG changes in ischemia and infarction

…Any type of infarction may cause pathological R wave progression. However, the specificity for pathological R wave progression is considerably lower than pathological Q waves…

Cardiovascular Risk in Women: Sex-Specific Factors

…Female specific or female predominant factors associated with later cardiovascular risk include: Premature menopause Premature ovarian insufficiency Hypertensive disorders of pregnancy Preeclampsia Preterm delivery Gestational…

Secondary Hypertension: When and How to Investigate

…blood pressure Other cardiovascular risk factors and relevant comorbidities Evidence of hypertension mediated organ damage Existing cardiac, cerebrovascular, or renal disease The possibility of a…

ECG Criteria for STEMI (ST Elevation Myocardial Infarction)

…Criteria for ST Elevation Myocardial Infarction (STEMI) The diagnosis of STEMI relies on specific electrocardiographic thresholds for ST segment elevation measured at the J point…

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