منابع مشابه
Is This Pacemaker Functioning Abnormally?
711 ECG CHALLENGE An 85-year-old man with a history of ischemic heart disease and a single-chamber pacemaker implanted 6 months earlier because of atrial fibrillation with slow ventricular response was admitted to the emergency department with complaints of lightheadedness. A 12-lead ECG was obtained to assess pacemaker function as part of the initial diagnostic evaluation (Figure 1). Pacing st...
متن کاملPseudofusion in a dual chamber pacemaker: Is this pacemaker working properly?
A 57-year-old womanwith a history of dizziness due to episodes of complete heart block and bradycardia was referred to the electrophysiology ward for pacemaker implantation. A dual chamber pacemaker (Medtronic, Relia, Medtronic, Minneapolis, USA) was implanted. Its analysis showed normal function (atrial lead capture threshold 0.5 V at 0.4 ms, ventricular lead capture threshold 0.75 V at 0.4 ms...
متن کاملHow sweet is the pacemaker?
Pacemaker infections can be difficult to diagnose, especially when they present with non-specific symptoms and signs a long time after insertion of the device. Unidentified or partially treated low-grade chronic sepsis can result in multisystem disease processes with significant mortality and morbidity. Therefore, a high index of suspicion is required to identify the pacemaker as the source of ...
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Introduction: Hyaluronic acid (HA) is an anionic biopolymer composed of alternating disaccharide units of D-glucuronic acid and Nacetyl-D-glucosamine with (14)interglycosidic linkage [1]. It is the only nonsulfated glycosaminoglycan (GAG) that is abundant in the synovial fluid and extracellular matrix (ECM) [1-2]. The over all goal of this study is to fabricate and characterize nanospheres ba...
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Introduction A number of theories have been proposed that relate the differentiation pathway of mesenchymal stem cells (MSCs) to their biomechanical environment during healing. In addition, the organisation of the ECM determines the mechanical fitness of any repair tissue. A key structural component in most soft tissues is collagen. Our hypothesis is that both cell phenotype and the collagen or...
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ژورنال
عنوان ژورنال: Texas Heart Institute Journal
سال: 2017
ISSN: 0730-2347,1526-6702
DOI: 10.14503/thij-17-6411