Evidence map›Paper›PMID 33575849›Full record

ReviewNeuroradiology2021

Acute hemorrhagic leukoencephalitis in a COVID-19 patient-a case report with literature review.

Baskaran Varadan, Abhinaya Shankar, Akila Rajakumar, Shubha Subramanian, A C Sathya, Abdul Rahman Hakeem, Srinivasan Kalyanasundaram

Open access · bronzeAbstract readCase ReportsReview
In one paragraph

Review in Neuroradiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 7 pooled it
5.0field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 7 syntheses or guidelines pooled it, 50 citations in OpenAlex.

  1. Acute hemorrhagic leukoencephalitis: a case report and systematic review of factors associated with severe disability and death.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
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  2. [Report of 3 cases of acute hemorrhagic leukoencephalitis in Mexico].Revista medica del Instituto Mexicano del Seguro Social · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Baskaran VaradanDepartment of Radiology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India.
Abhinaya ShankarDepartment of Radiology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India.
Akila RajakumarLiver Intensive Care and Anaesthesia, Clinical Lead, Critical Care Services, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India.
Shubha SubramanianDepartment of Neurology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India.
A C SathyaIntensive Care, Department of Anaesthesia and ICU, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India.
Abdul Rahman HakeemHPB Surgery and Liver Transplantation, Institute of Liver Diseases & Transplantation, Dr. Rela Institute & Medical Centre, Chromepet, Chennai, India.
Srinivasan KalyanasundaramDepartment of Radiology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India. drksvasan@gmail.com.
Tamil Nadu Dr. M.G.R. Medical University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAcute hemorrhagic leukoencephalitis (AHLE) is a rare and severe form of acute disseminated encephalomyelitis (ADEM). Only a few reports of AHLE in coronavirus disease 2019 (COVID-19) patients have been described to date. We report a case of COVID-19-related AHLE along with a literature review describing salient clinical and imaging characteristics.

methodsA literature search was performed on Medline (2020-present), PubMed, Cochrane Library, CINAHL, and Google scholar on 28 January 2021 for all articles published using MeSH terms "COVID-19" or "SARS-CoV-2" with "Acute hemorrhagic leukoencephalitis" or "Acute hemorrhagic encephalitis." Relevant case reports and case series describing clinical and imaging features of AHLE associated with SARS-CoV-2 infection were included, data compiled, and critically reviewed.

resultsAcute onset encephalopathy and rapidly deteriorating neurological status is the common clinical presentation in AHLE. CSF analysis reveals elevated proteins and lymphocytic pleocytosis. Typical neuroimaging features include multifocal, variable-sized, poorly defined cerebral white matter lesions with cortical sparing. Involvement of the brainstem, cerebellar peduncles, and deep grey matter can also occur, although rarely. Lesions are hyperintense on T2-weighted (T2W) and fluid-attenuated inversion recovery (FLAIR) images, hypointense on T1W images, and show microhemorrhages, variable diffusion restriction, and post-contrast enhancement. Extensive microhemorrhages, brainstem involvement, and gross hemorrhage often portend a poor prognosis.

conclusionHeightened awareness about the clinical and imaging presentation of COVID-19-related AHLE can positively alter the outcome in a select few by enabling early diagnosis and aggressive management.

Indexed as

COVID-19Fatal OutcomeHumansLeukoencephalitis, Acute HemorrhagicMagnetic Resonance ImagingMaleMiddle AgedPneumonia, ViralSARS-CoV-2Tomography, X-Ray ComputedAcute disseminated encephalomyelitis (ADEM)Acute hemorrhagic leukoencephalitis (AHLE)Computed tomography (CT)COVID-19Magnetic resonance imaging (MRI)

Identifiers

PMID33575849
PMCPMC7878029
OpenAlexW3128968336

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.