25 träffar

ArticleCardiology
Ventricular Tachycardia

…collectively dictate the urgency and modality of intervention [3] . By Duration: Non sustained VT (NSVT): Defined as three or more consecutive ventricular beats at a…

ArticleECG
Components and construction of a pacemaker

…Figure 1). Unipolar vs. bipolar pacing Pacemakers can utilize either a unipolar or bipolar mode of pacing (Figure 3). In bipolar pacing, the voltage difference…

ArticleProcedurer
Foreign body in the ear and nose

…a cerumen loop. Suction with Frazier tips of various sizes. A balloon catheter (a 5–6 Fr Fogarty or a Katz extractor). A local anaesthetic…

ArticleCardiology
Heart Failure with Reduced Ejection Fraction (HFrEF)

…cardiovascular societies, defines HF as a clinical syndrome corroborated by elevated natriuretic peptide levels and/or objective evidence of pulmonary or systemic congestion [3] . Within…

ArticleCardiology
Heart failure: Introduction

…all clinical trials, epidemiological studies and mechanistic studies have been carried out in HFREF (heart failure with reduced ejection fraction) . Thus, our current knowledge of…

ArticleArrhythmias and arrhythmology
Atrial Fibrillation in the Critically Ill Patient

…newly detected for the first time, or newly developed during management of an acute illness. The clinical relationship between AF and acute deterioration is often…

ArticleMyocardial ischemia and infarction
In-Stent Restenosis: Mechanisms and Treatment

…disease is driven predominantly by tissue accumulation within the stented segment rather than by negative remodelling. Pathophysiology Neointimal hyperplasia The principal mechanism of ISR is…