recurrent syncope of obscure etiology, particularly in those with structural heart diseases, is associated with higher mortality rates. there are insufficient and conflicting data on prevalence and etiology of syncope in the urban middle eastern population. evaluating the etiologic basis of syncope can be an effective step in prevention of morbidities and sudden cardiac death in susceptible pop...

background: syncope is a common clinical problem which can be remarkably debilitating and associated with high health care costs. syncope is a clinical syndrome with many potential causes. the aim of the study was to determine the etiologies of patients with syncope in the emergency department (ed) of a referral and general university hospital.  methods: one hundred sixty-five consecutive patie...

 Background: Syncope is a common clinical problem which can be remarkably debilitating and associated with high health care costs. Syncope is a clinical syndrome with many potential causes. The aim of the study was to determine the etiologies of patients with syncope in the emergency department (ED) of a referral and general university hospital.  Methods: One hundred sixty-five consecutive ...

BACKGROUND In syncope patients, presence of coronary artery disease (CAD) is associated with poor prognosis. However, data concerning CAD prevalence in syncope patients without known cardiovascular disease are lacking. Therefore, the aim of this study was to investigate presence and extent of CAD in syncope patients. METHODS We included 142 consecutive patients presenting with syncope at the ...

Dear Editor: Syncope is a serious problem with life-time prevalence of 35% (1). It is estimated that 1 -3% of referrals to emergency departments and in-patient admissions are due to syncope (2). The underlying conditions can be cardiac or neurologic. Considering the completely different circumstances ruling the encounters with cardiac and neurologic syncope, in recent years many attempts have b...

OBJECTIVE Unexplained syncope is a challenge facing electrophysiologists. The prognosis varies widely depending on underlying causes, specially, cardiac ones. We sought to determine the abnormal electrophysiolgic (EP) study results as predictors of prognosis in syncope patients with suspected cardiac cause and risk factors associated with mortality. METHODS A total of 227 consecutive patients...

BACKGROUND We aimed to develop and test a literature-based model for symptoms that associate with cardiac causes of syncope. METHODS AND RESULTS Seven studies (the derivation sample) reporting ≥2 predictors of cardiac syncope were identified (4 Italian, 1 Swiss, 1 Canadian, and 1 from the United States). From these, 10 criteria were identified as diagnostic predictors. The conditional probabi...

INTRODUCTION AND OBJECTIVES Syncope is a common symptom that leads to 1% of admissions to hospital emergency departments, and is associated with high costs to the health system. The cardiology department of Faro Hospital has had a syncope unit since July 2007. The aim of this study is to analyze its results in terms of etiological diagnosis and treatment of syncope, using diagnostic flowcharts ...

drug abuse is considered as the most common poisoning in the world. stimulants agent especially amphetamines and methamphetamines are among important abused substances. different types of neurologic, psychiatric, respiratory, gastrointestinal, and cardiogenic complications have been reported to be related to methamphetamine consumption. some of these substances could cause dysrhythmias which is...

OBJECTIVES We sought to establish what historical findings are predictive of the cause of syncope. BACKGROUND The clinical features of the various types of syncope have not been systematically investigated. METHODS Three hundred forty-one patients with syncope were prospectively evaluated. Each patient was interviewed using a standard questionnaire. A cause of syncope was assigned using sta...