Minor heart feature may mean trouble at high altitude

A common heart feature long thought to have negligible effects on human health and performance may be problematic at high altitude. That's a key finding from a study that looked at the effects of a condition known as patent foramen ovale in a high-altitude Bolivian setting.
Source: ScienceDaily Headlines - Category: Science Source Type: news

Related Links:

Paradoxical embolism refers to a potential condition in which an embolus arising from a venous source crosses into the systemic circulation through a right-to-left cardiac shunt causing an arterial embolism.A 39-year-old woman carrier of a central venous catheter (CVC) without evident risk factors for stroke, developed an acute right homonymous hemianopia during hemodialysis. On neuroimaging, an infarct in the territory of the left posterior cerebral artery was demonstrated. Transesophageal echocardiography revealed a patent foramen ovale (PFO) and a large fluctuating thrombus in the right atrium on the tip of the CVC, thu...
Source: Journal of the Neurological Sciences - Category: Neurology Authors: Tags: Clinical Short Communication Source Type: research
Abstract OBJECTIVE/BACKGROUND: Migraine is associated with ischemic stroke. Women are 3-fold as likely as men to have migraine, and high estrogen states increase the risk of migraine with aura (MWA), venous thromboembolism (VTE), and of stroke. We review the epidemiological and mechanistic evidence of the migraine-stroke relationship and its risk factors, with a focus on women and conditions that exclusively or predominantly affect them.  METHODS: We performed a search of MEDLINE/PubMed database, then a narrative review of the epidemiological evidence of the migraine-stroke relationship as...
Source: Headache - Category: Neurology Authors: Tags: Headache Source Type: research
This article discusses cryptogenic stroke and the results of recent randomized trials that can inform its evaluation and management. RECENT FINDINGS Most cryptogenic strokes appear embolic, leading to the term embolic stroke of undetermined source. It was previously thought that embolic stroke of undetermined source was a single, therapeutically relevant entity, the underlying sources of which would respond to anticoagulant therapy; however, two large randomized trials found no benefit with anticoagulation compared to antiplatelet therapy for secondary stroke prevention after embolic stroke of undetermined source. A sin...
Source: CONTINUUM: Lifelong Learning in Neurology - Category: Neurology Tags: REVIEW ARTICLES Source Type: research
This article reviews current knowledge on epidemiology, risk factors and causes, diagnostic considerations, management, and prognosis of ischemic stroke in young adults (those 55 years old and younger). RECENT FINDINGS The incidence of ischemic stroke in young adults has been increasing since the 1980s, which has occurred in parallel with increasing prevalence of vascular risk factors and substance abuse among the younger population. Young adults have a considerably wider range of risk factors than older patients, including age-specific factors such as pregnancy/puerperium and oral contraceptive use. Behavioral risk fac...
Source: CONTINUUM: Lifelong Learning in Neurology - Category: Neurology Tags: REVIEW ARTICLES Source Type: research
Publication date: Available online 31 March 2020Source: Canadian Journal of CardiologyAuthor(s): Anoop Mathew, Dylan Taylor
Source: Canadian Journal of Cardiology - Category: Cardiology Source Type: research
We presented twenty-four cases which also had postnatal echocardiographic examination in our hospital. A t the time of diagnosis of ASP, the mean maternal age was 31.1 ± 5.7 years, the mean gestational age was 28.9 ± 5.9 weeks, the mean birth week was 37.4 ± 3.1 weeks, and the mean birth weight was 2940.8 ± 736.6 g. The postnatal first 3 months prevalences of atrial septal ane urysm, patent foramen ovale and, secundum atrial septal defect (ASD) were 12.5%, 12.5%, 20.8% among fetuses with ASP, respectively. ASP ...
Source: Journal of Fetal Medicine - Category: Perinatology & Neonatology Source Type: research
AbstractHigh-risk PE can be complicated by the presence of a patent foramen ovale (PFO), which can lead to paradoxical systemic embolization, including cerebral embolism ultimately leading to acute ischemic stroke (AIS). Acute management is challenging given the competing benefits and risks of systemic thrombolysis. Herein, we aim to provide a review of clinical presentations, diagnostic findings, and treatment and outcome from the available literature, with the hopes of providing insight into treatment options. We followed the guidelines outlined by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (P...
Source: Emergency Radiology - Category: Emergency Medicine Source Type: research
IN THIS issue of the Journal of Cardiothoracic and Vascular Anesthesia, Villablanca et al. evaluated whether the presence and diagnosis of a patent foramen ovale (PFO) or atrial septal defect (ASD) preoperatively was associated with an increase in perioperative stroke for patients undergoing noncardiac surgery.1 The authors used “big data” to describe the largest study to date of 19,659,191 hospitalizations retrieved from the Healthcare Cost and Utilization Project's National Readmission Database.
Source: Journal of Cardiothoracic and Vascular Anesthesia - Category: Anesthesiology Authors: Tags: Editorial Source Type: research
Abstract Objectives: To access the distinct values of contrast transcranial Doppler (cTCD), contrast transthoracic echocardiography (cTTE), and contrast transesophageal echocardiography (cTEE) in the diagnosis of right-to-left shunt (RLS) due to patent foramen ovale (PFO) and to define the most practical strategy for the diagnosis of PFO. Methods: 102 patients with a high clinical suspicion for PFO had simultaneous cTCD, cTTE, and cTEE performed. The agitated saline mixed with blood was used to detect right-to-left shunt (RLS). Results: In all 102 patients, the shunt was detected at rest by cTCD in 60.78...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
Authors: Ntaios G, Tzikas A, Vavouranakis E, Nikas D, Katsimagklis G, Koroboki E, Manolis AS, Milionis H, Papadopoulos K, Sideris S, Spengos K, Toutouzas K, Tziakas D, Vassilopoulou S, Kanakakis I, Vemmos K, Tsioufis K Abstract Patent foramen ovale (PFO) is a frequent echocardiographic finding and can be found in approximately 15-25% of the general population1 (Figure 1). The incidence of PFO is 2- to 3-fold higher in patients with stroke of undetermined etiology compared to the general population, a finding that implies a causative role of PFO in patients with stroke of undetermined etiology 2,3. In this context, ...
Source: Hellenic Journal of Cardiology - Category: Cardiology Tags: Hellenic J Cardiol Source Type: research
More News: Bolivia Health | Cardiology | Health | Heart | Patent Foramen Ovale | Science | Study