Johan Virhammar
Associate professor at Department of Medical Sciences; Neurology
- Mobile phone:
- +46 73 967 74 77
- E-mail:
- johan.virhammar@neuro.uu.se
- Visiting address:
- Akademiska sjukhuset
- Postal address:
- Akademiska sjukhuset, ing 85 plan 2
751 85 UPPSALA
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Short presentation
The main focus of my research is neuroimaging, CSF biomarkers and pathophysiology primarily in the area of hydrocephalus. Also active research in the fields of Parkinsons disease, multiple sclerosis, neurointensive care and neurological complications to COVID-19.
Publications
Selection of publications
- Brain tissue Aβ42 levels are linked to shunt response in idiopathic normal pressure hydrocephalus (2019)
- Increase in callosal angle and decrease in ventricular volume after shunt surgery in patients with idiopathic normal pressure hydrocephalus (2019)
- The idiopathic normal-pressure hydrocephalus Radscale (2018)
- Arterial Spin-Labeling Perfusion MR Imaging Demonstrates Regional CBF Decrease in Idiopathic Normal Pressure Hydrocephalus (2017)
- Levodopa-carbidopa enteral suspension in advanced Parkinson's disease: clinical evidence and experience (2017)
- Quantitative MRI for Rapid and User-Independent Monitoring of Intracranial CSF Volume in Hydrocephalus (2016)
- Idiopathic normal pressure hydrocephalus (2014)
- Preoperative Prognostic Value of MRI Findings in 108 Patients with Idiopathic Normal Pressure Hydrocephalus (2014)
- The callosal angle measured on MRI as a predictor of outcome in idiopathic normal-pressure hydrocephalus (2014)
- The CSF tap test in normal pressure hydrocephalus (2012)
- Preoperative Prognostic Value of MRI Findings in 109 Patients with Idiopathic Normal Pressure Hydrocephalus
Recent publications
- Extracellular vesicles in plasma and cerebrospinal fluid in patients with COVID-19 and neurological symptoms (2024)
- Prognostic performance of blood neurofilament light chain protein in hospitalized COVID-19 patients without major central nervous system manifestations (2023)
- Levels of inflammatory cytokines MCP-1, CCL4, and PD-L1 in CSF differentiate idiopathic normal pressure hydrocephalus from neurodegenerative diseases (2023)
- Myoclonus in patients with COVID-19 (2023)
- Higher levels of neurofilament light chain and total tau in CSF are associated with negative outcome after shunt surgery in patients with normal pressure hydrocephalus (2022)
All publications
Articles
- Extracellular vesicles in plasma and cerebrospinal fluid in patients with COVID-19 and neurological symptoms (2024)
- Prognostic performance of blood neurofilament light chain protein in hospitalized COVID-19 patients without major central nervous system manifestations (2023)
- Levels of inflammatory cytokines MCP-1, CCL4, and PD-L1 in CSF differentiate idiopathic normal pressure hydrocephalus from neurodegenerative diseases (2023)
- Myoclonus in patients with COVID-19 (2023)
- Higher levels of neurofilament light chain and total tau in CSF are associated with negative outcome after shunt surgery in patients with normal pressure hydrocephalus (2022)
- Antibody Responses to Severe Acute Respiratory Syndrome Coronavirus 2 in the Serum and Cerebrospinal Fluid of Patients With Coronavirus Disease 2019 and Neurological Symptoms (2022)
- The extent of neuroradiological findings in COVID-19 shows correlation with blood biomarkers, Glasgow coma scale score and days in intensive care (2022)
- Protein Expression Profile of ACE2 in the Normal and COVID-19-Affected Human Brain. (2022)
- White matter changes should not exclude patients with idiopathic normal pressure hydrocephalus from shunt surgery (2022)
- The timed up and go test in idiopathic normal pressure hydrocephalus (2022)
- Midbrain area and the hummingbird sign from brain MRI in progressive supranuclear palsy and idiopathic normal pressure hydrocephalus (2022)
- Different Inflammatory Signatures in Alzheimer's Disease and Frontotemporal Dementia Cerebrospinal Fluid (2021)
- Critical illness polyneuropathy, myopathy and neuronal biomarkers in COVID-19 patients (2021)
- Imaging features associated with idiopathic normal pressure hydrocephalus have high specificity even when comparing with vascular dementia and atypical parkinsonism (2021)
- Autoimmune Encephalitis Presenting With Malignant Catatonia in a 40-Year-Old Male Patient With COVID-19 (2021)
- Indirect immunofluorescence for detecting anti-neuronal autoimmunity in CSF after COVID-19-Possibilities and pitfalls (2021)
- Biomarkers for central nervous system injury in cerebrospinal fluid are elevated in COVID-19 and associated with neurological symptoms and disease severity (2021)
- Negative predictors of shunt surgery outcome in normal pressure hydrocephalus (2020)
- Diagnostic accuracy of the iNPH Radscale in idiopathic normal pressure hydrocephalus (2020)
- Cerebral Perfusion Does Not Increase after Shunt Surgery for Normal Pressure Hydrocephalus (2020)
- Acute necrotizing encephalopathy with SARS-CoV-2 RNA confirmed in cerebrospinal fluid (2020)
- Brain tissue Aβ42 levels are linked to shunt response in idiopathic normal pressure hydrocephalus (2019)
- Standardized image evaluation in patients with idiopathic normal pressure hydrocephalus (2019)
- Aqueductal CSF Stroke Volume Is Increased in Patients with Idiopathic Normal Pressure Hydrocephalus and Decreases after Shunt Surgery (2019)
- Increase in callosal angle and decrease in ventricular volume after shunt surgery in patients with idiopathic normal pressure hydrocephalus (2019)
- The idiopathic normal-pressure hydrocephalus Radscale (2018)
- Arterial Spin-Labeling Perfusion MR Imaging Demonstrates Regional CBF Decrease in Idiopathic Normal Pressure Hydrocephalus (2017)
- Levodopa-carbidopa enteral suspension in advanced Parkinson's disease: clinical evidence and experience (2017)
- Quantitative MRI for Rapid and User-Independent Monitoring of Intracranial CSF Volume in Hydrocephalus (2016)
- Idiopathic normal pressure hydrocephalus (2014)
- Preoperative Prognostic Value of MRI Findings in 108 Patients with Idiopathic Normal Pressure Hydrocephalus (2014)
- The callosal angle measured on MRI as a predictor of outcome in idiopathic normal-pressure hydrocephalus (2014)
- The CSF tap test in normal pressure hydrocephalus (2012)
- Preoperative Prognostic Value of MRI Findings in 109 Patients with Idiopathic Normal Pressure Hydrocephalus
Books
