24 Result(s)

Article

Serotonin and vasovagal syncope

The goal of this manuscript was to review the biological and clinical evidence that serotonin neurotransmission might play an important role in the  physiology and treatment of vasovagal syncope.

Mohammed Alsaleh, Aryan Talati, Satish R. Raj… in Clinical Autonomic Research (2024)

Article

Is there a relationship between hypocapnia and tachycardia in postural orthostatic tachycardia syndrome (POTS)? A systematic review

Shaun I. Ranada, Lucy Y. Lei, Jacquie Baker, Richard Wilson… in Clinical Autonomic Research (2023)

Article

Complications related to pacemakers and other cardiac implantable electronic devices: essentials for internists and emergency physicians

With the aging population, improving technology, and expanding indications for diagnosing and treating arrhythmias and heart failure, many patients are receiving cardiac implantable electronic devices (CIEDs) ...

Liane A. Arcinas, Robert S. Sheldon in Internal and Emergency Medicine (2023)

Article

Atomoxetine for suppression of vasovagal syncope

Vasovagal syncope (VVS) is a common clinical condition with few effective medical therapies. The study aimed to evaluate the effectiveness of atomoxetine in suppressing syncope in patients with recurrent VVS.

Robert S. Sheldon, Colette Seifer, Ratika Parkash… in Clinical Autonomic Research (2023)

Article

A comparison of health-related quality of life in autonomic disorders: postural tachycardia syndrome versus vasovagal syncope

Postural tachycardia syndrome (POTS) and vasovagal syncope (VVS) are two disorders of orthostatic intolerance which are often misdiagnosed as the other. In each case, patients experience a reduced health-relat...

Juliette Hall, Kate M. Bourne, Robert S. Sheldon… in Clinical Autonomic Research (2021)

Article

A qualitative study to identify factors that influence patients’ decisions to call Emergency Medical Services for syncope

Protocols that support paramedics to assess, treat and refer low-risk syncope (fainting) may allow for ED transport of only high-risk patients. The development and uptake of such protocols is limited by a dear...

Tamara M. Williamson, Mary Runte, Tigana Runte… in Canadian Journal of Emergency Medicine (2021)

Chapter

Seizures vs Syncope: Distinguishing Features for the Clinic

The diagnosis of transient loss of consciousness poses practical challenges. In particular, the distinction between syncope and epileptic seizures is not always made accurately; it can be particularly challeng...

Robert S. Sheldon, Satish R. Raj in Syncope (2020)

Article

Outcomes in syncope research: a systematic review and critical appraisal

Syncope is the common clinical manifestation of different diseases, and this makes it difficult to define what outcomes should be considered in prognostic studies. The aim of this study is to critically analyz...

Monica Solbiati, Viviana Bozzano, Franca Barbic… in Internal and Emergency Medicine (2018)

Chapter

Epidemiology of Vasovagal Syncope

Vasovagal syncope is a common symptom, but its true incidence is difficult to estimate because only a small percentage of patients with syncope seek medical advice. The estimated prevalence varies according to...

Monica Solbiati, Robert S. Sheldon in Vasovagal Syncope (2015)

Article

Gynecological and menstrual disorders in women with vasovagal syncope

Vasovagal syncope (VVS) is a chronic debilitating condition seen mostly in young women of reproductive age. There are anecdotal reports of increased syncope and presyncope around menstruation. This case–contro...

Prasuna Muppa, Robert S. Sheldon, Maureen McRae… in Clinical Autonomic Research (2013)

Reference Work Entry In depth

Military Operations Research

Brian R. McEnany, Robert S. Sheldon in Encyclopedia of Operations Research and Ma… (2013)

Reference Work Entry In depth

Air Force Operations Research

Clayton J. Thomas, Robert S. Sheldon… in Encyclopedia of Operations Research and Ma… (2013)

Article

Rationale for the prevention of syncope trial IV: assessment of midodrine

Vasovagal syncope is a common problem associated with a poor quality of life, which improves when the frequency of syncope is reduced. Effective pharmacological therapies for vasovagal syncope have been elusiv...

Satish R. Raj, Peter D. Faris, Maureen McRae… in Clinical Autonomic Research (2012)

Reference Work Entry In depth

Tachycardia, Polymorphic Ventricular, Stress-induced

Satish R. Raj, S. R. Wayne Chen… in Encyclopedia of Molecular Mechanisms of Di… (2009)

Article

Current concepts in the evaluation and management of syncope

Syncope is a very common presentation with a wide differential diagnosis and equally wide prognostic implications. Recent work has highlighted the importance of an accurate history and physical examination as ...

Vikas Kuriachan, Robert S. Sheldon in Current Cardiology Reports (2008)

Article

Effects of ovarian hormones and aging on respiratory sinus arrhythmia and breathing patterns in women

We investigated the effect of ovarian hormones and aging on breathing pattern [pulmonary minute ventilation $$ {\left( {\dot {V}_{{{\...

Marlen Lüthi, Daniel E. Roach, Andrew E. Beaudin… in Clinical Autonomic Research (2008)

Article

Precordial QT Dispersion does not Predict Inducibility of Ventricular Tachyarrhythmias at Post-Revascularization Electrophysiologic Study

Objectives: We tested the hypothesis that revascularization would decrease QT interval dispersion and that QT interval dispersion would predict the outcome of the electrophysiologic study following revasculariza...

Satish R. Raj, L. Brent Mitchell… in Journal of Interventional Cardiac Electrop… (2002)