…a minute or so. 5. Advance the needle in the midline with a slight cranial angulation , about 15 degrees towards the umbilicus. Use the intr

…TdP). Drug induced LQTS and TdP represent a multifactorial clinical entity that typically emerges when multiple modifiable and non modifiable risk factors converge. The electrophysiological…

Cardiology Myocardial ischemia and infarction Definition and pathophysiology Atherosclerosis is a chronic, inflammatory disease of the arterial wall in which lipid accumulation, vascular cell dysfunction…

…site to the aortic root, engaging the coronary ostia, and acquiring multiple angiographic projections. Although traditionally regarded as an anatomical examination, contemporary ICA can provide…

…arises in the setting of both modifiable and nonmodifiable risk factors. Modifiable risk factors include electrolyte abnormalities such as hypokalemia, the co administration of multiple…

…VF). It is primarily intended for use in an emergency setting. The manual includes the following sections (click to navigate to the section): Classification of…

…ventricles take to de and repolarize. Abnormalities in the QT interval can cause serious arrhythmias and sudden cardiac death. QT prolongation can precipitate torsades de…

…the anatomical complexity of CAD, particularly in patients with multivessel disease or left main coronary artery disease . It integrates multiple variables, including the number of…

…DASH style diets. Their effects are multidimensional and cannot be adequately inferred from changes in a single intermediate marker such as cholesterol. Dietary composition may…

…in atrial fibrillation, particularly when other therapeutic options cannot be pursued. Patients receiving digoxin may present with symptoms of digitalis toxicity, which manifests across multiple…

…In the earliest stages of ischemia, this may manifest as tall, positive hyperacute T waves [15]. Profound ST elevation across multiple leads generally indicates very…

…affect multiple vascular territories, including the renal, carotid, vertebral and coronary arteries. In one study cited in the source material, FMD was identified in 86…

…more prevalent in Japan and South Korea than in Western populations, and multiple vessel spasm during provocation testing is also reported more frequently in East…

…5% of such lesions caused a clinical event during 3.4 years of follow up in a prospective study of patients with acute coronary syndrome…

…even in the absence of classic ST elevation. Multiple studies have demonstrated the superior sensitivity of OMI criteria—including subtle and nontraditional ECG patterns such…

…VF). It is primarily intended for use in an emergency setting. The manual includes the following sections (click to navigate to the section): Classification of…

…occur at any age and multiple valve lesions are common (typically the aortic and mitral valve). Rheumatic heart disease is rare in high income countries…

…has boundaries with high echogenicity. Then the sound waves can be reflected multiple times between the boundary layers, as illustrated in Figure 2. Figure 2…

…in LVH. Deep S wave in V5 or V6 ( 6 mm) Large RS complexes in multiple leads P pulmonale Figure 1. ECG changes seen in…

…by withdrawing parasympathetic activity and increasing sympathetic activity. This has multiple effects which are discussed in detail below. This article will deal with the physiology…

…ubiquitous in high income Western countries. Fortunately, modern antihypertensive therapy enables most patients to return to normal blood pressure (normotension). Combination therapy with multiple antihypertensives…

…a liquid approach a circular opening. The flow profile gradually assumes the shape of a hemisphere with multiple layers. Flow velocity is equal within each…

…ventricle is divided into 17 segments for 2D echocardiography. One can identify these segments in multiple views. Note that the terms ischemic heart disease (IHD…

…true; the stiffer the myocardium, the slower and less pronounced the relaxation. Left ventricular compliance Multiple factors affect ventricular compliance. These factors include age, afterload…

…They then stress tested the model against multiple outcome definitions and validated it, with no fine tuning, in geographically and structurally distinct US and Taiwanese…

…is rare. Lesions may be solitary or multiple and typically measure approximately 5–25 mm in diameter and 4–30 mm in depth. PAU is…

…70 years Male sex Previous upper gastrointestinal disease Hepatic or renal disease Multiple cardiovascular risk factors Concomitant nonsteroidal anti inflammatory drugs Corticosteroid therapy Other antiplatelet…

Cardiology Nephrology Definition and terminology Contrast associated acute kidney injury is an acute deterioration in renal function occurring after exposure to iodinated contrast media, particularly…

…Basis CT generates cross sectional images from x ray attenuation measurements obtained at multiple angles. Tissue attenuation is expressed relative to water in Hounsfield units…

Cardiology Definition and classification Heart failure (HF) is a clinical syndrome in which the heart cannot deliver blood at a rate appropriate to tissue requirements…

…on multiple imaging planes. Location adjacent to hyperkinetic myocardium. Large thrombus burden. Cardiac magnetic resonance (CMR) can further characterize thrombus morphology and may assist in…

…disseminated intravascular coagulation, and multiple organ failure. In the absence of treatment, approximately 1 in 100 cases of preeclampsia may progress to eclampsia. Clinical presentation…

…caused by reversible ischaemia. Symptoms may remain present daily or weekly despite multiple antianginal agents and prior revascularization procedures. In many patients, the burden is…

…often exhibit multiple villi . These myxomas are more likely to embolize (Cardiac Thromboembolism). There are genetic syndromes that result in the emergence of multiple myxomas…

…ventricle is divided into 17 segments for 2D echocardiography. One can identify these segments in multiple views. The basal part is divided into six segments…

…developed many decades ago and they have multiple drawbacks. For example, Bazett's formula is only suitable in adults with a heart rate between 60…

…occurs with increasing depth. TGC is adjusted using multiple controls that each represent a specific depth in the image (Figure 1). The bottom control adjusts…

Cardiology Indications for pharmacologic agents Pharmacologic stress tests are indicated in the following scenarios: Inability to exercise due to physical limitations. Contraindications to exercise, such…

…suprasternal notch) Multiple views are obtained in each window. Some parameters, e.g left ventricular diameter, are evaluated in several views in order to assess…

…of cases, which is explained by the following: The aortic valve is easy to visualize and image quality is typically high in multiple views. The…

…in multiple views. It should be noted that imaging of the right ventricle requires an experienced echocardiographer. Three dimensional (3D) echocardiography should be considered in…

…which will be discussed below. The basic principles of exercise test protocols will also be discussed in this article. Metabolic equivalent (MET): measuring oxygen consumption…

…2 In type 2 second degree sinoatrial block impulses are blocked sporadically (without any Wenckebach phenomenon). The pauses between the visible beats are always multiples…

…of the end diastolic volume (EDV, i.e blood volume in the ventricle at the end of diastole) that is pumped out during systole. Currently…