نتایج جستجو برای: paroxysmal event
تعداد نتایج: 215414 فیلتر نتایج به سال:
The initiation of ventricular tachycardia and fibrillation in isolated hearts by potassium chloride.
An accelerating tachycardia ending in fibrillation can be initiated in isolated hearts by injections of KC1 after the administration of epinephrine, but not in untreated hearts. KC1 acts in two ways to do this. First, it causes an A-V block that enables epinephrine to cause a paroxysmal ventricular tachycardia. Secondly, it causes the latter to accelerate by delaying the recovery of excitabilit...
BACKGROUND Current standard of care for patients with recent-onset atrial fibrillation (AF) in the emergency department aims at urgent restoration of sinus rhythm, although paroxysmal AF is a condition that resolves spontaneously within 24 hours in more than 70% of the cases. A wait-and-see approach with rate-control medication only and when needed cardioversion within 48 hours of onset of symp...
BACKGROUND The conventional method of cryoballoon ablation of atrial fibrillation involves the use of fluoroscopy for visual guidance. The use of fluoroscopy is accompanied by significant radiation risks to the patient and the medical staff. Herein, we report our experience in performing successful nonfluoroscopic pulmonary vein isolation using cryoballoon ablation in 5 consecutive patients wit...
OBJECTIVES Nocturnal bruxism can be managed by botulinum toxin (Botox®) in patients who have not responded to conservative treatment. The aim of this study was to evaluate the efficacy of botulinum toxin A (BTXA) in the treatment of nocturnal bruxism. MATERIAL AND METHODS The retrospective study comprised 25 female patients, aged 23-55 years (mean 35.84 ± 8.41 years). All patients received a ...
PURPOSE To comprehensively evaluate the adverse events (AEs) significantly associated with brivaracetam (BRV) treatment in a large selection of randomized control trials. METHODS We conducted an online database search using Pubmed, Embase, Cochrane Online Library, and Clinicaltrial.gov for all available randomized control trials (RCTs) that investigated the therapeutic effects of brivaracetam...
BACKGROUND Dizziness is a frequent complaint of patients with Parkinson's disease (PD), and orthostatic hypotension (OH) is often thought to be the cause. We studied whether benign paroxysmal positional vertigo (BPPV) could also be an explanation. AIM To assess the prevalence of benign paroxysmal positional vertigo in patients with Parkinson's disease, with and without dizziness. METHODS 30...
a 14-year old boy was presented with q rare form ofmovement-induced drop attacks, which was also present in his father. 17jis case was, therefore, labeled as familial paroxysmal kinesigenic choreoathetosis.
Erythrophagocytosis refers to the removal of old and damaged red blood cells by leukocytes and macrophages. Observation of erythrophagocytosis in peripheral blood smear is a rare phenomenon that is mostly observed in paroxysmal cold hemoglobinuria and sporadically in some other pathological conditions. Here, we report a case of erythrophagocytosis by monocyte in peripheral blood of a patient wi...
BACKGROUND Natural history of paroxysmal atrial fibrillation (AF) is not very well documented. Clinical experience suggests that paroxysmal AF could progress to chronic AF with estimates ranging between 15 and 30% over a period of 1-3 years. We performed an epidemiologic study to elucidate the natural history of paroxysmal AF, this study estimated its incidence in a general practice setting, id...
Homeostatic synaptic plasticity (HSP) is involved in the emergence of epileptic activity that follows head trauma. The homeostatic scaling of synaptic strengths is believed to be regulated by the spiking activity of postsynaptic neurons. Recent evidence indicates that trauma-induced HSP might be at least in part regulated by active signaling from glial cells, and from astrocytes in particular. ...
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