INTRODUCTION Patients with cardiac syncope have a significantly higher mortality than patients with syncope of non-cardiac causes, while patients with syncope of unknown aetiology constitute an intermediate risk group, presumably because this group is mixed, which suggests that further diagnostic testing is warranted. MATERIAL AND METHODS This was a retrospective single-centre study evaluatin...

Georeferenced compositional data are prominent in many scientific fields and spatial statistics. This work addresses the problem of proposing models methods to analyze predict, through kriging, this type data. To purpose, a novel class α-transformations, named Isometric α-transformation (α-IT), is proposed, which encompasses traditional Log-Ratio (ILR) transformation. Similarly other α-transfor...

Compositional explanatory variables should not be directly used in a linear regression model because any inference statistic can become misleading. While various approaches for this problem were proposed, here an approach based on the isometric logratio (ilr) transformation is used. It turns out that the resulting model is easy to handle, and that parameter estimation can be done like in usual ...

Syncope is a symptom of many underlying disease states, which range from the relatively benign to the life threatening. There are numerous investigations done for patients with recurrent unexplained syncope which may have very low yield when it comes to making a definitive diagnosis. Recently, the implantable loop recorder (ILR) for continuous monitoring of the cardiac rhythm has been launched ...

We present results from a new Interagency Language Roundtable (ILR) based comprehension test. This new test design presents questions at multiple ILR difficulty levels within each document. We incorporated Arabic machine translation (MT) output from three independent research sites, arbitrarily merging these materials into one MT condition. We contrast the MT condition, for both text and audio ...

INTRODUCTION Unexplained syncope is a common condition with a significant impact both on the patient and on healthcare expenditure. Often, the diagnosis is hampered due to the temporary sporadic nature of the symptoms. Conventional monitoring methods have a low yield for identifying an abnormality during a spontaneous event. The implantable loop recorder (ILR), often underutilised, is an import...

Detection of occult AF using implantable loop recorders (ILR) has become routine practice in the evaluation cryptogenic stroke, yet there are few data demonstrating that ILRs reduce risk recurrent stroke. Our aim was to determine if diagnostic yield for ILR-detected patients with stroke may be improved clinical characteristics, and ILR-directed changes medical therapy We observed 282 consecutiv...

AIMS In about 30% of patients with syncope, the responsible mechanisms remain unrecognised. Nevertheless, the possibility of an arrhythmic aetiology remains, however, difficult to rule out. METHODS We therefore monitored with an implantable loop recorder (ILR, Reveal Plus, Medtronic) 34 subjects (60+/-15 years) with at least two unexplained syncopal episodes and negative neurological and card...