Katarína Klobucníková

Katarína Klobucníková
Comenius University Bratislava · 1st Department of Neurology

Doctor of Medicine

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48
Publications
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237
Citations

Publications

Publications (48)
Article
Background: There are increasing data linking sleep apnea with cognitive impairment. We aimed to clarify the relationship between sleep-disordered breathing (SDB) and cognition. Detailed attention was assigned to the potential role of central versus obstructive apneic pauses in cognitive impairment. Methods: Patients with suspected SDB were prospec...
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Background and objective: Sleep-disordered breathing (SDB) is more prevalent in patients with stroke than in the population without a history of stroke. SDB is an independent risk factor for stroke. SDB impairs cerebral circulation by several mechanisms, and therefore possibly contributes to wake-up stroke. Ultrasound-tagged near-infrared spectros...
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Background Obstructive sleep apnea (OSA) is a disorder with a significant risk for cardiovascular diseases. Dyslipidemia and redox imbalance belong to potential mechanisms linking OSA with the development of vascular diseases. The main aim of this study was the evaluation of the presence of lipid abnormalities in OSA patients, focusing on small den...
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Background: Anxiety and depression are common comorbidities of excessive daytime sleepiness (EDS). Sleep-related breathing disorders (SBD) and central disorders of hypersomnolence (like narcolepsy [NA]) are the most frequent causes of EDS. This study aimed to evaluate mood disorders in NA patients compared to the subjects with EDS due to SBD (SBD-...
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Introduction Melatonin is synthetized in a pineal gland with peak levels at night and decrease in the daylight period. This strong diurnal cyclic manner may be impaired by sleep-disordered breathing (SDB) that causes fragmentation of the sleep. The aim of this study was to evaluate the association of morning melatonin level with SDB, subjective exc...
Article
Speidel, Victor, Jan Christoph Purrucker, and Katarína Klobučníková. Manifestation of intracranial lesions at high altitude: case report and review of the literature. High Alt Med Biol 00:000-000, 2021.-A 32-year-old man trekked to the South Everest Base Camp (5,364 m) in Nepal. On the last day of the ascent, he noticed some dysesthesia in his righ...
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Objectives. Although multiple mechanisms, including autonomic dysfunction, seem to link sleep-disordered breathing (SDB) with dyslipidemia in animal studies, the data in clinical studies are limited. The aim of this study was to explore the association of lipoprotein levels with SDB measures in healthy habitual snorers. We supposed that autonomic d...
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Background Despite its high prevalence and negative impact, sleep-disordered breathing (SDB) remain commonly underdiagnosed and undertreated in stroke subjects. Multiple stroke comorbidities and risk factors, including obesity, hypertension, diabetes mellitus, ischemic heart disease, atrial fibrillation, and heart failure (H.F.) have been associate...
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Recent studies reported association of sleep-disordered breathing (SDB) with testosterone and vitamin D deficiency. Low testosterone and vitamin D levels have been linked to fatigue and excessive daytime sleepiness (EDS). However, the impact of testosterone and vitamin D deficiency on EDS in subjects with SDB remains unknown. The aim of this study...
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Background Sleep-disordered breathing (SDB) is present in more than 70% of stroke patients. Despite its association with increased morbidity, mortality, and reduced functional outcomes, targeted assessment of SDB in stroke patients, remain controversial. Polysomnography ("gold standard" examination) is a technically demanding and costly test with l...
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Background: Sleep-disordered breathing (SDB) and hyperlipidemia belong to known stroke risk factors. There is an increasing evidence that chronic intermittent hypoxia is independently associated with dyslipidemia. However, the clinical evidence linking SDB with dyslipidemia is poorly described. In this study, we aimed to find possible association b...
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Objective: An increase in the incidence of narcolepsy after the pandemic influenza with the H1N1 vaccination in 2009 resulted in an interest in narcolepsy epidemiology. The aim of the study was to examine the incidence and prevalence rates of narcolepsy and to describe the associated characteristics in Slovakia. Methods: Epidemiology data were c...
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Objective: Obstructive sleep apnoea syndrome (OSAS) associated with daytime sleepiness (DS) contributes to a higher incidence of motor vehicle accidents. Validation of fitness to drive in driving license applicants, with special concern regarding OSAS accompanied by excessive DS, became mandatory under new EU legislation in January 2016. The aim o...
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Obstructive sleep apnea is a sleep disorder characterized by repetitive partial or complete upper airway obstruction that lead to hemodynamic changes, arousals from sleep and intermittent hypoxia. Obstructive sleep apnea activates multiple pathways that lead to vascular disease. The vascular risk imposed by obstructive sleep apnea may be mediated t...
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The aim of this study is to remind the possibility of co-occurrence of epilepsy and narcolepsy. In the first case report, narcolepsy type 1 was diagnosed in 29-year-old female. After one year of the treatment with modafinil a new episodes of automatic behavior appeared. Patient was reevaluated and the diagnosis of focal epilepsy with partial comple...
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Introduction: Validation of fitness to drive in applicants for a driving license, with a special concern regarding OSAS accompanied by excessive daytime sleepiness, became mandatory under new EU legislation in January 2016. The aim of the study was to translate and validate the recommended Questionnaire to screen for OSAS (Q-OSAS) in Slovakia. Mate...
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Study objectives: Sleep disorders are frequent in stroke patients. The prevalence of sleep-disordered breathing (SDB), excessive daytime sleepiness (EDS), and restless legs syndrome (RLS) among stroke survivors is up to 91%, 72%, and 15%, respectively. Although the relationship between EDS and SDB is well described, there are insufficient data reg...
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Obstructive sleep apnea syndrome (OSA) is associated with increased vascular morbidity. Accelerated atherosclerosis might be one of the most important mechanisms linking OSA with the development of vascular disorders. Homocysteine (HCY) and vitamin D has been associated with atherogenesis. The aim of this study was to assess a possible association...
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Hypercholesterolemia represents a risk factor for the development of atherosclerosis. Lipoprotein research has recently been focused on the phenomenon of atherogenic and non-atherogenic lipoproteins. The aim of this study was to explore the association of lipoprotein subfractions with a measure for endothelial function (represented by reactive hype...
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Objectives: Epilepsy and sleep-disordered breathing (SDB) are relatively common disorders. SDB induces repetitive arousals and sleep fragmentation and may cause symptomatic epileptic seizures or hypoxic encephalopathy. Epileptic seizures change sleep architecture with increase of light sleep and reduction of REM sleep, which may lead to central ap...
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Study objectives: Sleep disordered breathing (SDB) is a frequent comorbidity in stroke patients. SDB is one of the independent risk factors for ischemic stroke. Conversely, stroke may contribute to SDB onset or aggravate premorbid SDB. Multiple mechanisms underlying SDB might be responsible for the development of stroke. The aim of this study was...
Article
Background: Sleep disorders are common in stroke patients. Sleep-disordered breathing (SDB), which is present in up to 72% of stroke patients, is the most frequent cause of excessive daytime sleepiness (EDS) in common population. The aim of this study was to assess the frequency of EDS in stroke patients and to analyze the impact of SDB, stroke se...
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Sleep-disordered breathing (SDB) is frequent in stroke patients. A strong association has been suggested between SDB and atrial fibrillation (AF). In this study, we evaluated the characteristics of SDB in etiologic subtypes of acute ischemic stroke. We also investigated the relationship between SDB and AF in acute ischemic stroke. We prospectively...
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Poor sleep is a frequent symptom in patients with multiple sclerosis (MS). The objective of the study was to assess the relationship between nocturnal polysomnographic (PSG) findings and quality of sleep, fatigue, and increased daytime sleepiness among patients with MS. Clinical characteristics were collected. Pittsburgh Sleep Quality Index (PSQI),...
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OBJECTIVES: Obstructive sleep apnea syndrome (OSA) is associated with increased cardiovascular morbidity and mortality. Endothelial dysfunction (ED), accelerated atherosclerosis and autonomic dysfunction might be the key players responsible for development of vascular diseases in patients with OSA. In a population with suspected OSA and low burden...
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Introduction: Electroencephalography (EEG) is a non-invasive investigation method playing an important role in differential diagnostics of seizures. In this article authors point out to its importance, but also limitations. Material and methods: Native interictal EEG findings were evaluated in inpatients after solitary unprovoked epileptic seizu...
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Objectives: Authors evaluated quality of sleep and daytime vigilance in patients with nocturnal epilepsy and compared it to those with daytime epilepsy. Background: Nocturnal seizures are an important type of epilepsy. They can result in morbidity due to disruption of sleep architecture. Daytime sleepiness, as a serious consequence of nocturnal...
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OBJECTIVES: Obstructive sleep apnea syndrome (OSA) is associated with increased cardiovascular morbidity and mortality. Endothelial dysfunction (ED), accelerated atherosclerosis and autonomic dysfunction might be the key players responsible for development of vascular diseases in patients with OSA. In a population with suspected OSA and low burden...
Article
Madelung's disease, or benign symmetric lipomatosis, is a rare condition characterized by diffuse deposition of adipose tissue in the neck, shoulders and upper trunk. It is one of the benign lipomatous diseases. Patients suffer for clinical and cosmetic problems. Possible respiratory discomfort resulting from compression of the upper airways by adi...
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Proton magnetic resonance spectroscopy (1H MRS) is an optional diagnostic method for potential epilepsy surgery candidates. The aim of this study was to determine the credibility of 1H MRS examination in a group of patients suffering from solitary and sporadic epileptic seizures generated in temporal lobe. We recorded a 100% sensitivity of 1H MRS i...
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Vasovagal syncope (VVS) is the most common type of syncope with the incidence of 21-43%. The aim of this study was to explain difficulties of correct diagnosis of VVS. Our group comprises 70 patients (24 men, 46 women) at the age of 15-71 years, in whom VVS was verified by the head-up tilt test (HUT-test). We evaluated the type of VVS, admission di...
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Hyperglycaemia-induced oxidative stress makes an important contribution to the aetiology of diabetic neuropathy. The aim of our study was to evaluate the effect of the antioxidant stobadine (STB) in comparison with a treatment by a high-dose of alpha-lipoic acid (ALA), on the neurological consequences of chronic hyperglycaemia in an animal model of...
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Authors warn of difficulties in diagnostic of solitary epileptic seizure and epilepsy. Material and methods: Our groups have been made up of patients, who have been dismissed from our clinic in the period from January 1997 to January 2007 with diagnosis of solitary unprovoked epileptic seizure (n=84) and epilepsy with sporadic epileptic seizure (n=...
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The occurrence of the first unprovoked epileptic seizure always requires thorough examination. The risk of incorrect diagnosis is high, non-epileptic seizures represent 20-33% of newly diagnosed cases. The aim of the study is to evaluate findings of various modifications of EEG examination in the group of patients who experienced solitary unprovoke...
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Approximately 5% of the general population experiences at least one unprovoked epileptic seizure in the lifetime. This is in contrast to the cumulative incidence of epilepsy (approx. 3-4%) and incidence of acute symptomatic seizures (approx. 4%). Nearly 2% of the population experiences a febrile seizure before the 5 years of age. The aim of this ar...
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The relationship between epilepsy and sleep has been known for many years. Yet is still not well understood because of it's reciprocal and intrinsic influences. Epileptic manifestations during sleep may lead to fragmentation of sleep stages. On the other hand insomnia or other sleep disorders may cause sleep deprivation and increase number of epile...
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Patients experiencing solitary unprovoked epileptic seizure have different risks of recurrence. The possible risk factors include in particular: structural cerebral lesion and its cause, history of febrile seizures, family history of epilepsy, the type of seizure, epileptiform EEG discharges and the problem of initiation or (or not initiation) of a...
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The aim of the paper was to analyse publications dealing with the coincidence of multiple sclerosis (MS) with epilepsy in order to clarify the possible pathophysiological relation of the two diseases. From the published clinical studies can be concluded that demyelination plaques can be the source of epileptic seizures. Location, number, size of th...

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