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    A case of MERS presenting with acute motor aphasia and tetraparesis and literature review
    (Springer, 2024) Sahan, Halime; Yabalak, Ahmet
    BackgroundMild encephalopathy w & imath;th reversible splenial lesions (MERS) are a clinical-radiological diagnosis that can be diagnosed with radiological imaging and can be accompanied by impaired consciousness, aphasia, headache, and paralysis. MERS can be divided into two different types based on radiological findings; Involvement of the splenium is seen in type 1, and involvement of the splenium and deep white matter is seen in type 2. MERS Type 2 is very rare in adults. Here, we describe a patient diagnosed with MERS Type 2 and our therapeutic intervention.Case presentationA 22-year-old woman presented with slurred speech, weakness in the extremities and headache that started 14 h ago. The patient had sore throat and fever of 37.6 degrees C for 2 days, and medical history or family history were unremarkable. Neurological examination revealed that she was conscious, cooperative, with no signs of meningeal irritation. Speech comprehension, naming, and repetition were preserved, motor examination revealed 5/5 left upper extremity strength, 4/5 right upper extremity strength, and 2/5 bilateral lower extremity strength. Diffusion-weighted magnetic resonance imaging (MRI-DWI) revealed bilateral deep white matter and splenium symmetrical diffusion restriction. Blood tests showed high C-reactive protein (CRP) and no leukocytosis. No cells were detected in the cerebrospinal fluid (CSF), protein was 151 mg/dl, glucose was within normal limits. The patient, who developed quadriparesis during follow-up, was started on pulse dose steroids. Neurological examination improved to patient's baseline at the 12th hour of treatment. In the 72nd hour control MRI-DWI, it was seen that the lesions had regressed. Culture/Polymerase chain reaction (PCR) for bacterial/viral infection agents came back negative. After steroids were given for 5 days, patient was discharged at her baseline.ConclusionsMERS is a rare diagnosis in adults and can be radiologically confused with acute toxic leukoencephalopathy. It can be distinguished clinically by the absence of prior infection, fever, and toxic agent exposure. Although there is no consensus in the literature regarding the treatment, the clinical picture improved rapidly after steroid in our case. Despite being rare, it should be considered in the differential diagnosis of patients with deep white matter lesions in adults.
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    Effects of thrombus characteristics on clinical outcome and success of recanalization in acute ischemic stroke
    (Asean Neurological Assoc, 2024) Yabalak, Ahmet; Ogun, Muhammed Nur; Duzelitmeli, Ayse Onalan Isimler; Karahan, Ezgi Ayse cakir; Sahan, Halime; Tokmak, Hilmiye
    Background: Despite current developments in mechanical thrombectomy (MT), successful recanalization cannot be achieved in all patients. One of the factors related to this is the characteristics of the thrombus. In this study, we aimed to evaluate the effects of thrombus length and permeability on procedural success and clinical outcome. Methods: Patients with intracranial ICA, middle cerebral artery M1, or M2 occlusions, who underwent MT between November 2019 and January 2022 were included in the study. Thrombus length, density and permeability were calculated and the relationship between recanalization success and modified Rankin Scores (mRS) at the 3rd month was evaluated. Good clinical outcome was defined as an mRS score of 2 or less. Results: Forty-six of the 79 patients included in the study had a good clinical outcome. Although thrombus length was shorter and permeability was higher in patients with good clinical outcome, statistical significance was not achieved. There was a positive correlation between thrombus density, thrombus length and the number of passes, and a negative correlation between permeability. There was no significant difference in thrombus length, density and permeability between patients with and without successful recanalisation. Thrombus length was found to be a predictor of clinical outcome at 3 months in univariate analysis, whereas only age was found to be an independent predictor in multivariate analysis. Conclusions: In conclusion, despite certain findings not achieving statistical significance, the observed trends offer valuable insights for future research. A comprehensive understanding of thrombus nature could guide personalized stroke treatment strategies in the future.