Search results for "ops"
showing 10 items of 5435 documents
Giant cell arteritis associated with chronic active Epstein-Barr virus infection
2013
Giant cell arteritis is an inflammatory vasculopathy that preferentially affects medium-sized and large arteries. A viral cause has been suspected but not confirmed in polymyalgia rheumatica and giant-cell arteritis. We report the case of a 81-year-old female who suffered from chronic active Epstein-Barr virus infection and developed giant cell temporal arteritis.
Thoracic dumbbell spinal chordoma mimicking a schwannoma
2021
Background: Epidural dumbbell-shaped chordomas are localized slow growing, and malignant/aggressive neoplasms. Here, we present a 62-year-old male with a T3-T4 dumbbell-shaped chordoma and reviewed the appropriate literature. Case Description: A 62-year-old male presented with a three-month history of thoracic pain. When the thoracolumbar magnetic resonance (MR) showed a T3-T4 dumbbell-shaped intracanalicular/extradural tumor, he underwent tumor removal. After the histological examination proved the lesion was a spinal chordoma, he underwent a secondary radical transthoracic tumor resection. Postoperatively, the patient was able to walk without assistance, and at 6-month follow-up, was neu…
Hearing loss in facioscapulohumeral dystrophy.
1986
Bilateral sloping high frequency hearing loss of 20–90 dB was found in six out of ten patients with infantile or adolescent onset FSHD. In all cases the basic defect could be traced to the cochlea. The outer hair cells of the basal turn are predominantly affected. In 20 patients with various other forms of muscular dystrophy or neuromuscular disorders with an FSH distribution, no sensorineural hearing loss was found. Myopathology of FSHD patients extended from mild to severe, often showing inflammatory infiltrates and type I fibre atrophy, without unequivocal differences between the two groups with and without hearing loss. It is concluded that cochlear dysfunction is a specific and frequen…
Hippocampal event-related potentials to pitch deviances in an auditory oddball situation in the cat: experiment I.
1995
Hippocampal event-related potentials (ERP) in the areas CA1, CA3, and dentate fascia (Df) were recorded in cats during an oddball situation when pitch deviant tones occurred in a series of standard tones. When difference waves were calculated by subtracting ERPs to the standard tones from those to the deviant tones, no clear N40d, corresponding to a cat analogue of the human mismatch negativity (MMN) observed in earlier studies, could be detected. Instead, a prominent later negativity (N130d) was observed. A possible extra-hippocampal source of the process reflected by the MMN-like negativity, and a relation between an orienting response (OR) and the N130d are discussed.
Chapter 31 Transcranial magnetic stimulation studies of contralesional space attention deficits
2002
Publisher Summary The power of transcranial magnetic stimulation (TMS) to disrupt and modulate the neural activity in focal brain regions has provided researchers in this field a promising tool to empirically test specific neuropsychological models and constructs of contralesional space attention deficits. A group of studies has used TMS to transiently disrupt the cortical activity of the focal brain areas in normal subjects to replicate the effects of neurological lesions. This chapter discusses a number of studies, using single-pulse, paired-TMS, and repetitive TMS (rTMS) and different experimental paradigms that show how this technique can be of fundamental importance, in elucidating the…
Rhythmic exercises as tools for rehabilitation following cerebellar stroke: A case study integrating music therapy and physiotherapy techniques
2022
Introduction: This article explores the use of music and multisensory stimuli in the construction of compensatory neural networks for motoric functioning in a patient recovering from cerebellar strokes (CS). This study aimed to address the real-world clinical concern of patients having a passive role in therapy, by arousing the client’s interest and self-motivation in rehabilitation. Method: The article presents a case study of a CS survivor, using data derived from rehabilitation sessions combining music therapy techniques with physiotherapy techniques to improve the fluency and accuracy of his motor performance. Qualitative and quantitative data are used to identify, describe, and evaluat…
Hypokalemic rhabdomyolysis associated with Bartter's syndrome.
1983
Severe potassium deficiency is an uncommon cause of rhabdomyolysis. We recently treated a 45-year-old patient with myalgia, serious generalized weakness, increased serum creatine kinase and myoglobin level as well as excessive hypokalemia. Histological examination of deltoid muscle biopsy showed rhabdomyolysis. After complete recovery of muscle damage by potassium substitution Bartter's syndrome proved to be the cause of initial and persistent hypokalemia.
Myoadenylate deaminase deficiency
1987
Myoadenylate deaminase (MAD) is the rate-limiting enzyme in the purine nucleotide cycle which is biochemically linked to glycolysis and the citric cycle and thereby providing energy during intense muscular activity. In muscle fibers, myoadenylate deaminase operates at considerably higher activity levels than in other organs. First detected using enzyme-histochemical methods, it now appears that deficiency of myoadenylate deaminase is one of the most frequent enzyme defects in muscle. The primary defect may occur as an isolated nosological entity or not infrequently it is also associated with a large spectrum of different neuromuscular conditions. It seems to be the primary unassociated MAD …
Frequency and Correlates of Mild Cognitive Impairment in Myasthenia Gravis
2023
Background: Antibodies against acetylcholine receptors (AChRs) can also target nicotinic AChRs that are present throughout the central nervous system, thus leading to cognitive dysfunctions in patients with myasthenia gravis (MG). However, the presence of cognitive impairment in MG is controversial, and the factors that may influence this risk are almost completely unknown. In this study, the frequency of mild cognitive impairment (MCI) in MG, as well as the clinical, immunological, and behavioral correlates of MCI in MG were evaluated. Methods: A total of 52 patients with MG underwent a comprehensive assessment including motor and functional scales, serological testing, and neuropsychologi…
Hronotops un gotiskais šausmu kino
2017
Bakalaura darba „Hronotops un gotiskais šausmu kino” mērķis ir aplūkot laiktelpas dinamiku gotiskā šausmu kino žanrā un apkopot tā raksturiezīmes fiksētas telpas ietveros. Mērķa sasniegšanai tiek izmantota Mihaila Bahtina hronotopa teorija, kura aplūko laiktelpas dinamikas un funkcijas literāro darbu žanros. Pilnvērtīgai analīzei tiek izmantota arī Vladimira Propa tēlu funkciju teorija. Teorētiskā darba daļa sastāv no pētniecisko teoriju apskata, kā arī gotisko romānu un šausmu kino vēsturiskās attīstības aplūkošanas. Analītiskā darba daļa sevī iekļauj izvēlēto filmu hronotopu un tēlu analīzi, balstoties uz to, kā literārās hronotopu kategorijas tiek pielāgotas kino analīzei. Secinājumos ti…