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    The effect of blood groups on infection and prognosis of sarscov-2
    (2021) Aslaner, Hümeyra; Gökçek, Mebrure Beyza; Benli, Ali Ramazan; Baydemir, Recep; Akyol, Gülsah; Güven, Zeynep Tugba; Kaynar, Leylagül
    Aim: This study aimed to investigate the effect of blood groups on the risk and prognosis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the infected/source cases and contact individuals. Material and Method: This study was designed as a descriptive and retrospective study. The individuals who were in contact with the SARS-CoV-2main/source cases and followed at home were included in the study.The distribution of the participants according to their blood groups was assessed. Patients were divided into three groups as group 1 including source/main cases, group 2 including SARSCoV-2contacts who were living in the same house with the source case and followed up, and group 3 including contacts who were followed up in the same house but did not develop SARS-CoV-2 during the follow-up. Results: While the rate of Non-O blood group was the highest (n=365, 39.4%) in group 2the rate of O blood group was the highest (n=190, 42.8%) in group 3 (p:0.028). While the rate of Rh positive blood group was high in group 1 that of Rh negative blood group was higher in group 3 (p:0.000). For other variables, the presence of a chronic disease was more in group 1 (p:0.000). Rh (+) blood group (OR:0.464, p:0.010, %95 Cl: 0.306 ~ 0.703) was among the factors affecting the development of the infection. Conclusion: Patients infected with SARS-CoV-2 mostly had A, Non-O blood group and Rh positivity. Having Rh (+) blood group may have increased the rate of infection development in high-risk household contacts. After patients in this blood group were detected as contacts a closer follow-up may be necessary to decrease morbidity.
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    Evaluation of stroke frequency in covid-19 patients
    (2022) Baydemir, Recep; Aslaner, Hümeyra; Ünüvar, Gamze Kalın; Gültekin, Murat; Benli, Şeyma; Benli, Ali Ramazan
    Objective: Neurological symptoms occur due to central and peripheral nervous system involvement with different mechanisms in coronavirus disease 2019 (COVID-19). Microvascular thrombosis develops with prothrombotic activation along with the increase in cytokines in COVID-19 infection. We aimed to investigate the incidence of cerebrovascular disease and concomitant risk factors in COVID-19 positive patients.Materials and Methods: Acute and temporally related cerebrovascular diseases with a diagnosis of COVID-19 were evaluated. Cerebrovascular events were assessed in 4 groups as ischemic and hemorrhagic events, transient ischemic attacks, and cerebral venous thrombosis. Risk factors for cerebrovascular disease in these patients were also assessed, and which risk factors for cerebrovascular diseases in COVID-19 patients are high risk were examined.Results: Of the 1000 patients with COVID-19 disease were evaluated. Ischemic cerebrovascular disease and/or transient ischemic attack were found in 14 patients (1.4%). The most common symptoms related to COVID-19 were fever and respiratory distress in 14 patients with acute ischemic stroke diagnosed with COVID-19.Conclusion: COVID-19 increases the risk of stroke in patients with multiple risk factors. Close follow-up should be performed more carefully, especially in patients with pulmonary involvement and acute ischemic stroke, because mortality is likely to be higher.