scholarly journals Simultaneous Arterial and Venous Brain Infarctions in a Patient with COVID-19.

2021 ◽  
Author(s):  
Sonia Bermúdez ◽  
Paula Forero ◽  
Vanessa Salej ◽  
Silvia González ◽  
Jaime Toro
Keyword(s):  
Rt Pcr ◽  
Brain Images ◽  
Case Presentation ◽  
Cortical Vein ◽  
Left Hand ◽  
Brain Infarcts ◽  
Starting Point ◽  
Severity Of The Disease ◽  
The Right ◽  
The Brain

Abstract Introduction: Stroke is one of the manifestations of COVID-19 associated coagulopathy. Arterial infarcts are the most common presentation, however involvement of both arterial and venous irrigation is possible but rare. We report, what is, to our knowledge, the second case of concomitant arterial and venous brain thrombosis evidenced in magnetic resonance. Case presentation: A 62-year-old man presented with acute weakness of the left hand and lack of coordination in the left arm. Nine days earlier, he was positive for SARS-CoV-2 RT-PCR. The brain images revealed two subacute infarcts, one corresponding to the territory of the right middle cerebral artery, and the other in the right frontal cortical vein. Conclusion: The existence of both venous and arterial brain infarcts due to COVID-19 infection, has been previously reported once. Most of the cases of stroke are due to only arterial thrombosis, therefore this could be the starting point to start collecting data about simultaneous compromise in order to assess and compare outcomes, severity of the disease, among other variables.

scholarly journals “Old wine in a new bottle” - post COVID-19 infection, central serous chorioretinopathy and the steroids

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Srinivasan Sanjay ◽  
Poornachandra B. Gowda ◽  
Bhimasena Rao ◽  
Deepashri Mutalik ◽  
Padmamalini Mahendradas ◽  
...  
Keyword(s):  
Virus Disease ◽  
Anterior Segment ◽  
Central Serous Retinopathy ◽  
Oral Antibiotics ◽  
Rt Pcr ◽  
Case Presentation ◽  
Ocular Manifestations ◽  
Corrected Distance Visual Acuity ◽  
History Of ◽  
The Right

Abstract Introduction Corona virus disease (COVID-19) pandemic can cause myriad of ocular manifestations. We report a case of unilateral multi focal central serous retinopathy, post COVID-19 infection in an Asian Indian female. Case presentation A 42-year-old female presented to us with unilateral blurring, in the right eye (OD), 12 days after COVID-19 infection. She had fever, chills, shortness of breath and cough with tiredness and was COVID- RT PCR positive. She was administered intravenous and oral antibiotics with injection heparin/remdesivir, during her 7 day stay at the hospital. She was also on steroid inhalers. She had no systemic history of note. On ocular evaluation, her corrected distance visual acuity was 20/40 in OD and 20/20 in left eye (OS). Anterior segment was normal. Anterior vitreous was clear. Fundus examination of the OD showed central serous retinopathy (CSCR) with OS being normal. Conclusion CSCR can occur post COVID-19 due to steroid administration and physicians administering it should be aware of this and refer the patients to an ophthalmologist earlier.

Lateral Medullary Infarction with Contralateral Segmental Dysesthesia and Ipsilateral Headache: A Case Report

2021 ◽  
Vol 17 ◽  
Author(s):  
Renjie Wang ◽  
Yankun Shao ◽  
Lei Xu
Keyword(s):  
Medulla Oblongata ◽  
Clinical Manifestations ◽  
Lateral Medullary Infarction ◽  
Case Presentation ◽  
Specific Sign ◽  
Temperature Sense ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain ◽  
Medullary Infarction

Introduction: The medulla oblongata is the lowest segment of the brain stem, located adjacent to the spinal cord, with a complex anatomical structure. Thus, a small injury to the medulla oblongata can show complex clinical manifestations. Case Presentation: A patient experienced dysesthesia, which manifested as numbness in her right lower limb and decreased temperature sense, and dizziness 20 days before admission. The numbness worsened 1 week before admission, reaching the right thoracic (T) 12 dermatomes. Her thermoception below the T12 dermatomes decreased, and the degree of dizziness increased, accompanied by nausea and vomiting. Magnetic resonance imaging (MRI) of the neck, chest, and abdomen performed at a local hospital showed no abnormalities. MRI of the brain was performed after admission. One week after admission, she experienced a severe headache in the upper left periorbital area. The numbness extended to T4, and thermoception decreased below T4. Diagnosis: Lateral medullary infarction. Interventions: Anti-platelet aggregation and mitochondrial nutritional therapies were performed along with treatments for improving circulation and establishing collateral circulation. Outcomes: The intensity of limb numbness decreased, and the symptoms of headache and dizziness resolved. Conclusion: Lesions leading to segmental sensory disorders can occur in the medulla oblongata. Ipsilateral headaches with contralateral segmental paresthesia can be a specific sign of lateral medullary infarction.

scholarly journals Optic perineuritis secondary to hyaluronic acid injections: a case report

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Yanjun Hu ◽  
Yingjun Wang ◽  
Yuhua Tong
Keyword(s):  
Hyaluronic Acid ◽  
Oral Prednisolone ◽  
Young Female ◽  
Blurred Vision ◽  
Visual Field Examination ◽  
Case Presentation ◽  
Administration Method ◽  
The Right ◽  
Optic Discs ◽  
The Brain

Abstract Background Although a safe, excellent administration method for hyaluronic acid derivatives has been documented; improper injections can lead to devastating and irreversible consequences. Here, we present the first known case of optic perineuritis caused by hyaluronic acid. Case presentation A young female experienced sudden orbital pain in the right eye after receiving hyaluronic acid injections to the eyebrows. She presented to the eye clinic two weeks later, after developing blurred vision in the right eye. Visual acuity was reduced significantly in the right eye. Automated visual field examination showed defects in both eyes. Fundus examination revealed bilateral swelling of optic discs. Magnetic resonance imaging of the brain demonstrated bilateral perineural enhancement consistent with optic perineuritis. The patient was treated with retrobulbar injection of hyaluronidase and oral prednisolone. Her vision improved with treatment. Conclusions The prognosis for visual outcomes in patients with optic perineuritis is generally excellent. However, a poor prognosis is associated with delays to the initiation of treatment. Recognizing this condition is important, and treatment with corticosteroids should be initiated early.

The Effect of Oxygen on Verbal Performance : An fMRI Study

2006 ◽  
Vol 321-323 ◽  
pp. 996-999
Author(s):  
Soon Cheol Chung ◽  
Ji Hye You ◽  
Bong Soo Lee ◽  
Gye Rae Tack ◽  
Sin Kim ◽  
...  
Keyword(s):  
Inferior Frontal Gyrus ◽  
Middle Temporal Gyrus ◽  
Single Shot ◽  
Brain Images ◽  
Oxygen Administration ◽  
Effect Of Oxygen ◽  
The Right ◽  
The Brain ◽  
Verbal Performance ◽  
Verbal Cognition

This study aimed to investigate the hypothesis that administration of the air with 30% oxygen compared with normal air (21% oxygen) enhances verbal cognitive functioning through increased activation in the brain. Nine male college students participated in the study. The experiment consisted of two runs, one for verbal cognition task with normal air (21% oxygen) and the other for verbal cognition task with hyperoxic air (30% oxygen). Functional brain images were taken with a 3T MRI using the single-shot EPI method. From the results of the verbal behavioral analysis, the accuracy rate was enhanced with 30% oxygen administration when compared to 21% oxygen. The activities were observed at the occipital, parietal, temporal and frontal lobes during both 21% and 30% oxygen administration. There were more activations observed at the right middle frontal gyrus, right inferior frontal gyrus, right superior frontal gyrus, cingulate gyrus, left middle temporal gyrus, and left fusiform gyrus with 30% oxygen administration. These results suggest that a higher concentration of breathed oxygen increases saturation of blood oxygen in the brain, and facilitates verbal performance.

scholarly journals Coronavirus disease 2019 complicated with Bell’s palsy: a case report

2020 ◽  
Author(s):  
Yue Wan ◽  
Shugang Cao ◽  
Qi Fang ◽  
Mingfu Wang ◽  
Yi Huang
Keyword(s):  
Facial Paralysis ◽  
Antiviral Treatment ◽  
Brain Mri ◽  
Bell’S Palsy ◽  
Rt Pcr ◽  
Bell's Palsy ◽  
Case Presentation ◽  
Complete Absorption ◽  
Lower Lung ◽  
The Right

Abstract Background: Coronavirus disease 2019 (COVID-19) is a highly infectious disease, mainly causing respiratory symptoms. However, a few patients may also have neurological symptoms. Herein, we report a case of COVID-19 infection complicated with Bell’s palsy.Case presentation: A 65-year-old woman was admitted due to left facial drooping. Physical examination showed left peripheral facial paralysis. Brain MRI showed no abnormality. However, the chest CT revealed the ground-glass shadows in the right lower lung. The real-time reverse transcription-polymerase chain reaction (RT-PCR) results for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA were positive through throat swabs, while the common influenza virus antigens were tested negative. The symptoms of left facial paralysis relieved after antiviral treatment. She patient was discharged in the context of 3 consecutively negative RT-PCR test results for SARS-CoV-2 RNA and complete absorption of the right lung lesions. Conclusion: This case suggests that COVID-19 may be presented with Bell’s palsy and may be a potential cause of facial paralysis.

scholarly journals A cerebral Arteriovenous Malformation mistakenly diagnosed as Dry Eye and Glaucoma: a case report

2019 ◽  
Author(s):  
Shuhao Shen ◽  
Xiaoyong Liu ◽  
Jian Chen ◽  
Chengyou Yang ◽  
Changzheng Shi ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Dry Eye ◽  
Cerebral Arteriovenous Malformation ◽  
Digital Subtraction ◽  
Occipital Area ◽  
Case Presentation ◽  
Recurrent Headache ◽  
Eye Symptoms ◽  
The Right ◽  
The Brain

Abstract Background To report a case of a cerebral Arteriovenous Malformation(AVM) with eye symptoms firstly and review the characteristic of this case and the main confusing point for diagnosis of such case. Case presentation A 58-year-old women presented to the ophthalmology clinic with 1 and an half year of right eye redness, Ocular hypertension and recurrent headache. One and a half year ago she was diagnosed as right eye dry eye and glaucoma and had received treatment according to diagnosis, however all the treatment did not lead to any improvement of redness and headache. On physical examination, it revealed dry eye and severe corkscrew hyperemia with dilated vessels in the right eye. After we consider that the symptom may be related to intracranial abnormal vessels, Computed tomography angiography and venography (CTA+CTV) were performed and the results showed an arteriovenous malformation (AVM) of right parietal-occipital area in the brain. The AVM was definitely located by the further examination of Digital subtraction angiography (DSA). After the AVM endovascular embolism treatment, the conjunctival congestion of the right eye was significantly relieved and the intraocular pressure was decreased to normal. Conclusion In clinical practice, when found corkscrew hyperemia accompanied by neurological symptoms, it might be considered as a result from cerebral vessels diseases, so in this case ophthalmologists diagnosis should combine disease history and imaging examination.

scholarly journals Spontaneous Convexity Subarachnoid Hemorrhage Caused by Internal Carotid Occlusion: Radiological Features

2019 ◽  
Vol 39 (01) ◽  
pp. 016-017
Author(s):  
Benedito Jamilson Araújo Pereira ◽  
Radmila Agra Cariry Targino de Holanda ◽  
José Targino Neto ◽  
Luciano Ferreira de Holanda
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Internal Carotid ◽  
Digital Subtraction ◽  
Resonance Imaging ◽  
Left Hand ◽  
Internal Carotid Occlusion ◽  
Similar Report ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
The Brain

AbstractA 79-year-old patient was admitted to the emergency room with transitory monoparesis in the left hand and dysphasia. The brain computed tomography (CT) and magnetic resonance imaging (MRI) showed a spontaneous right convexity subarachnoid hemorrhage (cSAH). Digital subtraction angiography (DSA) confirmed an asymptomatic occlusion of the right internal carotid artery (ICA) . Cases related to stenosis have already been described, but there is no similar report of a case related to occlusion, even though the pathophysiology of both entities is similar. Atraumatic SAH has been associated with intracranial and extracranial artery stenosis.

scholarly journals Neural support of manual preference revealed by BOLD variations during right and left finger-tapping in a sample of 287 healthy adults balanced for handedness

2020 ◽  
Author(s):  
Nathalie Tzourio-Mazoyer ◽  
Loïc Labache ◽  
Laure Zago ◽  
Isabelle Hesling ◽  
Bernard Mazoyer
Keyword(s):  
Finger Tapping ◽  
Brain Areas ◽  
Left Hand ◽  
Left Handedness ◽  
Somatosensory Cortices ◽  
Hand Control ◽  
Left And Right ◽  
The Right ◽  
The Brain ◽  
Somatosensory Areas

AbstractWe have identified the brain areas involved in Manual Preference (MP) in 143 left-handers (LH) and 144 right-handers (RH)). First, we selected the pairs of homotopic regions of interest (hROIs) of the AICHA atlas with significant contralateral activation and asymmetry during the right-hand and the left-hand Finger-Tapping (FT) both in RH and LH. Thirteen hROIs were selected, including the primary and secondary sensorimotor, and premotor cortices, thalamus, dorsal putamen and cerebellar lobule IV. Both contralateral activations and ipsilateral deactivations (reversed for the cerebellum) were seen in primary motor and somatosensory areas, with stronger asymmetries when the preferred hand was used. Comparing the prediction of MP with different combinations of BOLD variations in these 13 hROIs, the differences between movement of the preferred hand versus that of the non-preferred hand within the contralateral and/or ipsilateral cortices of 11 hROIS performed best at explaining handedness distribution, Handedness is thus supported by: 1-between-hand variations of ipsilateral deactivations of hand primary sensorimotor and secondary somatosensory cortices and 2-variations in regions showing the same profile in left and right-handers during the right or left FT. The present study demonstrates that right and left-handedness are not based on mirrored organization of hand control areas.

scholarly journals The Miraculous Left Hand – On Leonardo da Vinci and the Search for a Common Understanding of Man and Nature

2013 ◽  
Vol 21 (1) ◽  
pp. 10-20 ◽  
Author(s):  
Jens Erik Fenstad
Keyword(s):  
Da Vinci ◽  
Leonardo Da Vinci ◽  
Left Hand ◽  
Starting Point ◽  
Man And Nature ◽  
Mind And Brain ◽  
The Mind ◽  
The Brain ◽  
Common Understanding ◽  
Broad Understanding

Is a common approach to knowledge about man and nature possible? With Leonardo da Vinci as our starting point we will explore this question. Leonardo was much more than a painter; he was a sharp observer of man and nature. What he saw (structures) and what he did (using his miraculous left hand as syntax) was translated into insights and methods of constructions as recorded in his notebooks. His view was holistic, as witnessed by his study of the eye; from the anatomy of the eye he proceeded outwards to a theory of perspective, and inwards to an understanding how perception and the mind are grounded in the brain. In this we see similarities to current studies of language, mind and brain. It is possible to see a kind of proto-version of the art and science of mathematical modelling in Leonardo. This is a methodology of wide scope, extending far beyond physics and engineering. With a sufficiently broad understanding of the key concepts of structure, syntax and algorithms we have a method strong enough to allow for a common approach to knowledge of man and nature, to what there is and how we know.

scholarly journals A cerebral Arteriovenous Malformation mistakenly diagnosed as Dry Eye and Glaucoma: a case report

2019 ◽  
Author(s):  
Shuhao Shen ◽  
Xiaoyong Liu ◽  
Jian Chen ◽  
Chengyou Yang ◽  
Changzheng Shi ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Dry Eye ◽  
Cerebral Arteriovenous Malformation ◽  
Digital Subtraction ◽  
Occipital Area ◽  
Case Presentation ◽  
Recurrent Headache ◽  
Eye Symptoms ◽  
The Right ◽  
The Brain

Abstract Background To report a case of a cerebral Arteriovenous Malformation(AVM) with eye symptoms firstly and review the characteristic of this case and the main confusing point for diagnosis of such case. Case presentation A 58-year-old women presented to the ophthalmology clinic with 1 and an half year of right eye redness, Ocular hypertension and recurrent headache. One and a half year ago she was diagnosed as right eye dry eye and glaucoma and had received treatment according to diagnosis, however all the treatment did not lead to any improvement of redness and headache. On physical examination, it revealed dry eye and severe corkscrew hyperemia with dilated vessels in the right eye. After we consider that the symptom may be related to intracranial abnormal vessels, Computed tomography angiography and venography (CTA+CTV) were performed and the results showed an arteriovenous malformation (AVM) of right parietal-occipital area in the brain. The AVM was definitely located by the further examination of Digital subtraction angiography (DSA). After the AVM endovascular embolism treatment, the conjunctival congestion of the right eye was significantly relieved and the intraocular pressure was decreased to normal. Conclusion In clinical practice, when found corkscrew hyperemia accompanied by neurological symptoms, it might be considered as a result from cerebral vessels diseases, so in this case ophthalmologists diagnosis should combine disease history and imaging examination.

Sign in / Sign up

Export Citation Format

Share Document