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  1. Article ; Online: An Extraordinary EEG Phenomenon Misdiagnosed as Nonconvulsive Status Epilepticus: Frequent Subclinical Periodic Discharges Terminated by Sudden Auditory Stimuli.

    Oguz-Akarsu, Emel / Salman, Barıs / Ugur-Iseri, Sibel / Baykan, Betul

    Clinical EEG and neuroscience

    2022  , Page(s) 15500594221129965

    Abstract: Triggering or modulation of seizures and rhythmic EEG patterns by external stimuli are well-known with the most common clinical appearance of stimulus induced periodic discharges (SI- PDs) patterns which are elicited by physical or auditory stimulation. ... ...

    Abstract Triggering or modulation of seizures and rhythmic EEG patterns by external stimuli are well-known with the most common clinical appearance of stimulus induced periodic discharges (SI- PDs) patterns which are elicited by physical or auditory stimulation. However, stimulus terminated periodic discharges (ST-PDs), in other words, the periodic discharges stopped by external stimuli is an extremely rare electroencephalographic (EEG) finding. We report a 20-year-old woman with a marked psychomotor developmental delay of unknown cause, with frequent EEG patterns of long-lasting (10-60 s) bilateral paroxysmal high-voltage slow waves with occasional spikes, misdiagnosed as non-convulsive status epilepticus. However, no apparent clinical change was noted by the technician, physician, and her mother during these subclinical ictal EEG recordings. Interestingly, however, these epileptic discharges were abruptly interrupted by sudden verbal stimuli on the EEG, repeatedly. Whole exome sequencing and genotyping were performed to investigate possible genetic etiology that revealed two sequence variants, a frameshift variant of
    Language English
    Publishing date 2022-10-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2140201-2
    ISSN 2169-5202 ; 0009-9155 ; 1550-0594
    ISSN (online) 2169-5202
    ISSN 0009-9155 ; 1550-0594
    DOI 10.1177/15500594221129965
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  2. Article ; Online: Reply: "Spinal nerve pathology in Guillain-Barré syndrome associated with COVID-19 infection".

    Oguz-Akarsu, Emel / Ozpar, Rifat / Hakyemez, Bahattin / Karli, Necdet

    Muscle & nerve

    2020  Volume 62, Issue 5, Page(s) E75–E76

    MeSH term(s) COVID-19 ; Guillain-Barre Syndrome/complications ; Humans ; Pandemics ; SARS-CoV-2 ; Spinal Nerves
    Keywords covid19
    Language English
    Publishing date 2020-08-10
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 438353-9
    ISSN 1097-4598 ; 0148-639X
    ISSN (online) 1097-4598
    ISSN 0148-639X
    DOI 10.1002/mus.27029
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  3. Article ; Online: Insight into pain syndromes in acute phase of mild-to-moderate COVID-19: Frequency, clinical characteristics, and associated factors.

    Oguz-Akarsu, Emel / Gullu, Gizem / Kilic, Erhan / Dinç, Yasemin / Ursavas, Ahmet / Yilmaz, Emel / Zarifoglu, Mehmet / Karli, Necdet

    European journal of pain (London, England)

    2021  Volume 26, Issue 2, Page(s) 492–504

    Abstract: Background: Pain has been frequently described as a clinical feature of COVID-19, and the main pain syndromes that have been associated with the acute phase of this disease so far are headache, myalgia, arthralgia, and neuropathic pain. Understanding ... ...

    Abstract Background: Pain has been frequently described as a clinical feature of COVID-19, and the main pain syndromes that have been associated with the acute phase of this disease so far are headache, myalgia, arthralgia, and neuropathic pain. Understanding the characteristics of pain symptoms is crucial for a better clinical approach.
    Methods: Patients who were diagnosed as having COVID-19 using reverse transcription-polymerase chain reaction were included in the study. Patients were asked to complete a 51-item questionnaire via a phone interview, which included questions on demographics, acute COVID-19 symptoms, the presence of pain symptoms, and their characteristics in the acute phase of COVID-19.
    Results: A total of 222 out of 266 patients with COVID-19 participated in the study, yielding a response rate of 83.5%. A total of 159 patients reported at least one kind of pain syndrome with a prevalence of 71.6%. Myalgia was reported in 110 (49.6%) patients, headache in 109 (49.1%), neuropathic pain symptoms in 55 (24.8%), and polyarthralgia in 30 (13.5%) patients. A total of 66 patients reported only one type of pain, 46 reported two types, 42 reported three types, and five patients reported all four types of pain. Logistic regression analysis showed that there were significant associations between these pain syndromes and a strong association was found between neuropathic pain and headache.
    Conclusion: Pain is a frequently observed symptom of mild-to-moderate COVID-19. There are significant relationships between pain syndromes in COVID-19, which may be due to a sequence of common etiologic factors.
    Significance: This study described the main pain syndromes associated acute phase of mild-to-moderate COVID-19 and its associated features. Headaches and pain of neuropathic characteristics were prevalent in this sample.
    MeSH term(s) COVID-19 ; Headache/epidemiology ; Humans ; Myalgia ; SARS-CoV-2 ; Syndrome
    Language English
    Publishing date 2021-10-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 1390424-3
    ISSN 1532-2149 ; 1090-3801
    ISSN (online) 1532-2149
    ISSN 1090-3801
    DOI 10.1002/ejp.1876
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    Zs.A 5194: Show issues Location:
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  4. Article: Acquired hepatocerebral degeneration.

    Yalcin, Destina / Oguz-Akarsu, Emel / Sokmen, Mehmet

    Neurosciences (Riyadh, Saudi Arabia)

    2017  Volume 21, Issue 2, Page(s) 164–167

    Abstract: Acquired hepatocerebral degeneration is a rare, mostly irreversible neurological syndrome that occurs in patients with chronic liver disease, particularly in those with surgically or spontaneously induced portosystemic shunts. Typical magnetic resonance ... ...

    Abstract Acquired hepatocerebral degeneration is a rare, mostly irreversible neurological syndrome that occurs in patients with chronic liver disease, particularly in those with surgically or spontaneously induced portosystemic shunts. Typical magnetic resonance findings are T1 hyperintensity in the pallidum, substantia nigra, periaquaductal gray matter. In this paper, we report a case of a 51-year-old woman presented with hepatic encephalopathy episodes and typical magnetic resonance findings, who does not develop any neurological signs or symptoms, nor cognitive decline in the follow up period, lasting for 3 years.
    MeSH term(s) Cognitive Dysfunction ; Female ; Hepatic Encephalopathy/complications ; Hepatolenticular Degeneration/complications ; Humans ; Magnetic Resonance Imaging ; Middle Aged
    Language English
    Publishing date 2017-03-21
    Publishing country Saudi Arabia
    Document type Case Reports ; Journal Article
    ZDB-ID 2214806-1
    ISSN 1319-6138
    ISSN 1319-6138
    DOI 10.17712/nsj.2016.2.20150164
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  6. Article ; Online: Reply

    Oguz‐Akarsu, Emel / Ozpar, Rifat / Hakyemez, Bahattin / Karli, Necdet

    Muscle & Nerve ; ISSN 0148-639X 1097-4598

    “Spinal nerve pathology in Guillain–Barré syndrome associated with COVID ‐19 infection”

    2020  

    Keywords Physiology (medical) ; Physiology ; Cellular and Molecular Neuroscience ; Clinical Neurology ; covid19
    Language English
    Publisher Wiley
    Publishing country us
    Document type Article ; Online
    DOI 10.1002/mus.27029
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Evaluation of Risk Factors Associated with Stroke Recurrence in Patients with Minor Ischemic Stroke

    Yasemin Dinç / Emel Oğuz Akarsu / Bahattin Hakyemez / Mustafa Bakar

    Türk Nöroloji Dergisi, Vol 28, Iss 1, Pp 14-

    2022  Volume 18

    Abstract: Objective: Recurrent ischemic stroke (RIS) is a major threat to patients with IS. The risk of RIS in patients with minor IS (MIS) is 10-13% in the first 3 months. Despite the advanced examination and treatment of the patients, RIS is still common. It is ... ...

    Abstract Objective: Recurrent ischemic stroke (RIS) is a major threat to patients with IS. The risk of RIS in patients with minor IS (MIS) is 10-13% in the first 3 months. Despite the advanced examination and treatment of the patients, RIS is still common. It is important to know which risk factors cause RIS in order to take some precautions. The aim of this study is to determine the risky group by determining the demographic, clinical and radiological features associated with RIS in patients with MIS. Materials and Methods: We included 310 patients diagnosed as having acute IS (AIS) by Bursa Uludag University Faculty of Medicine Department of Neurology between 01.01.2019 and 01.01.2020, retrospectively. Results: When clinical, radiological and dermogrophic features were analyzed between patients with and without RIS, there were statistically significant differences between groups in terms of the presence of coronary artery disease (CAD), atherosclerotic vascular disease, anterior circulation stroke, craniocervical atherosclerotic stenosis, atherosclerotic stenosis in the anterior circulation, atherosclerotic stenosis of the symptomatic internal carotid artery (ICA), atherosclerotic stenosis in the asymptomatic ICA and performing carotid artery stenting. When significant variables were analyzed by using binary logistic regression in patients with MIS, it was found that the most significant variables were CAD and asymptomatic ICA stenosis. Conclusion: In our study, the risk factors associated with RIS in patients with MIS were the presence of CAD and asymptomatic ICA stenosis. Atherosclerosis is a systemic disease and therefore craniocervical atherosclerotic stenosis may be multiple. Angiographic evidence has also revealed ethnic and racial differences in patients with AIS. For this reason, more precise information can be obtained with prospective studies to be conducted in our own population.
    Keywords minor stroke ; carotid artery disease ; stroke recurrence ; Medicine ; R ; Neurology. Diseases of the nervous system ; RC346-429
    Subject code 610
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher Galenos Yayinevi
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Guillain-Barré Syndrome in a Patient With Minimal Symptoms of COVID-19 Infection.

    Oguz-Akarsu, Emel / Ozpar, Rifat / Mirzayev, Haci / Acet-Ozturk, Nilufer Aylin / Hakyemez, Bahattin / Ediger, Dane / Karli, Necdet

    Muscle & nerve

    2020  Volume 62, Issue 3, Page(s) E54–E57

    MeSH term(s) Betacoronavirus ; COVID-19 ; Cervical Plexus/diagnostic imaging ; Coronavirus Infections/complications ; Diagnosis, Differential ; Electrodiagnosis/methods ; Female ; Guillain-Barre Syndrome/complications ; Guillain-Barre Syndrome/diagnosis ; Humans ; Lumbosacral Plexus/diagnostic imaging ; Magnetic Resonance Imaging ; Middle Aged ; Pandemics ; Pneumonia, Viral/complications ; SARS-CoV-2 ; Tomography, X-Ray Computed
    Keywords covid19
    Language English
    Publishing date 2020-07-04
    Publishing country United States
    Document type Case Reports ; Letter
    ZDB-ID 438353-9
    ISSN 1097-4598 ; 0148-639X
    ISSN (online) 1097-4598
    ISSN 0148-639X
    DOI 10.1002/mus.26992
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  9. Article ; Online: Automatic detection of F waves and F-MUNE in two types of motor neuron diseases.

    Oguz-Akarsu, Emel / Sirin, Nermin Gorkem / Artug, Tugrul / Erbas, Bahar / Kocasoy Orhan, Elif / Idrisoğlu, Halil Atilla / Ketenci, Aysegul / Baslo, Mehmet Baris / Oge, Ali Emre

    Muscle & nerve

    2022  Volume 65, Issue 4, Page(s) 422–432

    Abstract: Introduction/aims: Motor unit number estimation by F waves (F-MUNE) is an uncommonly used MUNE technique. Our aim in this study was to assess the sensitivity of F-MUNE values elicited with newly developed software in motor neuron diseases.: Methods: ... ...

    Abstract Introduction/aims: Motor unit number estimation by F waves (F-MUNE) is an uncommonly used MUNE technique. Our aim in this study was to assess the sensitivity of F-MUNE values elicited with newly developed software in motor neuron diseases.
    Methods: F waves were recorded by 300 submaximal stimuli from abductor digiti minimi and abductor pollicis brevis muscles of 35 patients with amyotrophic lateral sclerosis, 18 with previous poliomyelitis, and 20 controls. The software determined the surface motor unit action potentials (sMUAPs) and calculated the F-MUNE values. Compound muscle action potential scans were also recorded to obtain MScanFit.
    Results: The sMUAP amplitudes were higher and F-MUNE values were lower in both muscles of the patients when compared with controls. F-MUNE values could distinguish patients from controls. Significant correlations were found between F-MUNE and MScanFit in the patient groups.
    Discussion: The new F-MUNE software offered promising results in revealing motor unit loss caused by motor neuron diseases.
    MeSH term(s) Action Potentials/physiology ; Amyotrophic Lateral Sclerosis/diagnosis ; Electromyography/methods ; Humans ; Motor Neuron Disease/diagnosis ; Motor Neurons/physiology ; Muscle, Skeletal
    Language English
    Publishing date 2022-02-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 438353-9
    ISSN 1097-4598 ; 0148-639X
    ISSN (online) 1097-4598
    ISSN 0148-639X
    DOI 10.1002/mus.27494
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  10. Article ; Online: Status epilepticus in patients with juvenile myoclonic epilepsy: Frequency, precipitating factors and outcome.

    Oğuz-Akarsu, Emel / Aydin-Özemir, Zeynep / Bebek, Nerses / Gürses, Candan / Gökyiğit, Ayşen / Baykan, Betül

    Epilepsy & behavior : E&B

    2016  Volume 64, Issue Pt A, Page(s) 127–132

    Abstract: Status epilepticus (SE) is rarely described in patients with juvenile myoclonic epilepsy (JME), and little is known about its frequency, subtypes, and predictors and the prognosis of these patients. In this retrospective study, we aimed to analyze the ... ...

    Abstract Status epilepticus (SE) is rarely described in patients with juvenile myoclonic epilepsy (JME), and little is known about its frequency, subtypes, and predictors and the prognosis of these patients. In this retrospective study, we aimed to analyze the incidence of SE in patients with JME and emphasize the risk factors and long-term outcome of SE in an epilepsy outpatient-based cohort. We included patients with JME with a history of predominant myoclonic seizures and at least one diagnostic EEG with normal background activity and bursts of typical ≥3-Hz generalized spike-polyspike and waves. We investigated the electroclinical features of patients with JME who had experienced SE and compared them with patients with JME without SE. Of the 133 patients with JME, only 5 patients were diagnosed with SE (3.8%) according to new criteria. The most common SE subtype was myoclonic SE (MSE, 4 patients), followed by generalized clonic-tonic-clonic SE (1 patient) and nonconvulsive SE (1 patient). One patient had both MSE and generalized clonic-tonic-clonic SE. In three out of five patients, recurrent episodes of SE were observed. Same seizure precipitants including sleep deprivation, inappropriate antiepileptic drug treatment, and noncompliance were identified in patients with JME with and without SE, not reaching a significant difference between the groups. Myoclonia limited to specific body parts (one arm, face, or head) were significantly more common in patients with JME with SE (p: 0.002). We did not find any significant correlation with drug-resistant course and SE. Status epilepticus is rarely observed in patients with JME, and MSE appears to be the most common subtype. Local myoclonia might predict SE in a subgroup of patients with JME. We may suggest that some patients with JME have a liability to SE, in addition to usual seizure precipitating factors of JME. It seems that SE per se does not affect the outcome of JME and the patients with SE did not have drug-resistant course in the final analysis.
    MeSH term(s) Adult ; Female ; Humans ; Male ; Myoclonic Epilepsy, Juvenile/epidemiology ; Precipitating Factors ; Retrospective Studies ; Status Epilepticus/epidemiology ; Status Epilepticus/etiology ; Status Epilepticus/physiopathology
    Language English
    Publishing date 2016-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2010587-3
    ISSN 1525-5069 ; 1525-5050
    ISSN (online) 1525-5069
    ISSN 1525-5050
    DOI 10.1016/j.yebeh.2016.07.038
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