…flow across the mitral valve. The duration of diastasis is inversely related to heart rate (diastasis is shorter at higher heart rates and vice versa ).

…mm (ascending aorta, aortic arch) All individuals 60 mm (descending aorta) All individuals Risk factors : previous dissection, family history of dissection, severe aortic regurgitation or…

…0.1 mV in 2 or more contiguous leads of the 12 lead ECG, excluding leads V1 to V3. 3. QRS duration is <120 ms…

…of the Pupillary Reflex in Cardiac Arrest The pupillary light reflex is controlled by a simple neural circuit: light signals travel from the retina via…

…DCM) Dilated cardiomyopathy (DCM) is defined as dilation of one or both ventricles. Dilation of the left ventricle is virtually always accompanied by impaired left…

…syndrome), osteogenesis imperfecta typically causes prolapse of P2 (Figure 1). Myocardial ischemia affecting the papillary muscles or the connected myocardium may cause mitral prolapse, and…

…ventricular tachyarrhythmias (including recurrent episodes of ventricular tachycardia) can also cause this cardiomyopathy. The duration of the tachyarrhythmia appears to be a stronger risk factor…

…Tetralogy of Fallot Marfan syndrome Takayasu's arteritis Iatrogenic (e.g complication of catheterization) Congenital dysplasia/aplasia of the pulmonary valve Idiopathic pulmonary artery dilation…

…Time to onset of action 5 to 15 minutes Duration of action 1.5 to 5 hours Delivery IV Dose 5–15 mg/hour IV…

…of both thromboembolic and hemorrhagic risks. The diagnostic prerequisite for clinical AF remains the documentation of the arrhythmia via a standard 12 lead ECG or…