181 research outputs found

    Treatment of stroke with early imaging and revascularization: when to be aggressive?

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    Neuroimaging has a key role in the assessment and treatment of acute stroke. Cerebral computer tomography is the first step to differentiate hemorragic from ischemic stroke and to detect, in the latter, early signs representative of the lesion severity and predicting a possible hemorrhagic infarction after thrombolytic treatment. Advanced neuroimaging techniques are relevant in the assessment of the ischemic and/or hypo-perfused area, being an essential tool in uncertain situations or when the time of symptoms onset is unavailable, increasing the efficacy and safety of endovenous thrombolysis by enlarging its therapeutic window and leading to more accurate selection of patients to be treated. Moreover, advanced neuroimaging may be of help in choosing the patients to be submitted to endovascular treatment when occlusion of an intracranial artery is documented, either after intravenous thrombolysis or as a primary approach. Here we describe the impact of neuroimaging in the decisional process in acute ischemic stroke, presenting the literature evidence on the topic, especially regarding the recent trials on endovascular treatment

    sj-docx-1-eso-10.1177_23969873231220508 – Supplemental material for Detection of microemboli in patients with acute ischaemic stroke and atrial fibrillation suggests poor functional outcome

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    Supplemental material, sj-docx-1-eso-10.1177_23969873231220508 for Detection of microemboli in patients with acute ischaemic stroke and atrial fibrillation suggests poor functional outcome by Pedro Castro, J Ferreira, Branko Malojcic, Danira Bazadona, Claudio Baracchini, Alessio Pieroni, David Skoloudik, Elsa Azevedo and Manfred Kaps in European Stroke Journal</p

    Systemic Neoplastic Cryoglobulinemic Vasculitis Mimics Large Vessel Occlusion: A Case Report

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    Introduction: We describe a systemic neoplastic cryoglobulinemic vasculitis presenting as a large vessel occlusion (LVO) syndrome. We focus on a rare presentation of a rare condition. Case report: A 68-year-old man was admitted to the Stroke Unit of Padova with a right middle cerebral artery syndrome. A cerebrovascular event was suspected and protocol for revascularization treatment was performed. Neuroimaging provided no evidence for infarcted tissue or medium-large vascular occlusion but hypothesized a vasculitic involvement of the small vessels of the right hemisphere. Further diagnostics demonstrated a microangiopathic involvement of the heart, kidneys, and lungs. Blood tests showed circulating cryoglobulins and further hematological investigation identified a chronic lymphatic leukemia-like lymphoproliferative disorder. High-dose steroid therapy improved the patient's clinical status and no neurological symptoms remained at discharge. Conclusion: We discuss the clinical-radiologic presentation of a small vessel vasculitis that mimics an LVO stroke. This case focuses on the relevance of concomitant multiorgan manifestations in the hyper-acute evaluation of LVO stroke, suggesting the clinical neurologist should consider alternative etiologies as these could provide important clinical implications

    Right-to-eft Shunt detection sensitivity with air-saline and air-succinilgelatin transcranial doppler

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    BACKGROUND: Air-saline transcranial Doppler is nowadays the first-choice examination to identify right-to-left shunt. To increase right-to-left shunt detection in echocardiography, cardiologists also use air-gelatin mixtures, which are more stable, more echogenic, and easier to be prepared. AIM: We assessed the sensitivity of air-gelatin compared with air-saline for transcranial Doppler right-to-left shunt detection. METHODS: Air-saline transcranial Doppler, during unilateral middle cerebral artery monitoring at rest and after Valsalva maneuver, was performed in patients referred to our neurosonology laboratory for right-to-left shunt detection. The same transcranial Doppler protocol was repeated with air-gelatin. To consider transcranial Doppler positive for cardiac right-to-left shunt, at least one embolic signal had to be detected within 20′′ from contrast injection. Later signals were interpreted of pulmonary origin. Trans-thoracic echocardiography was repeated with both air-saline and air-gelatin. RESULTS: A total of 97 patients were enrolled; 46 had negative transcranial Doppler for cardiac right-to-left shunt with both air-saline and air-gelatin; out of these, four patients with air-saline plus two more patients with air-gelatin presented late, isolated microemboli, slightly more numerous with air-gelatin: these were interpreted as pulmonary shunts and confirmed with trans-thoracic echocardiography. In 28 patients with already early positive air-saline transcranial Doppler at rest, air-gelatin induced a marked right-to-left shunt increase, facilitating its visualization at trans-thoracic echocardiography. In 23 patients in whom air-saline transcranial Doppler was negative at rest and positive for cardiac right-to-left shunt only after Valsalva maneuver, air-gelatin was able to reveal shunt also at rest. CONCLUSIONS: Air-gelatin increases right-to-left shunt detection sensitivity with transcranial Doppler in particular at rest, even in patients in whom air-saline mixture fails to identify the shunt. The choice of air-gelatin mixture should be considered for multicentric, clinical, and research trials
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