Evidence map›Paper›PMID 25735919›Full record

Observational studyJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2015

Cerebral amyloid angiopathy-related atraumatic convexal subarachnoid hemorrhage: an ARIA before the tsunami.

Eva Martínez-Lizana, María Carmona-Iragui, Daniel Alcolea, Manuel Gómez-Choco, Eduard Vilaplana, María B Sánchez-Saudinós, Jordi Clarimón, Mar Hernández-Guillamon, Josep Munuera, Ellen Gelpi and 10 more

Open access · bronzeAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
2.4field-weighted citation impact, top 12% 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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Neurology · 2019
    Pooled it
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  6. Cerebral Amyloid Angiopathy Is Associated With Higher RAnnals of clinical and translational neurology · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors at 8 institutions in 1 country.

Eva Martínez-LizanaMemory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.
María Carmona-Iragui1] Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain [2] Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Madrid, Spain.
Daniel Alcolea1] Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain [2] Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Madrid, Spain.
Manuel Gómez-ChocoDepartment of Neurology, Hospital de Sant Joan Despí Moisès Broggi, Barcelona, Spain.
Eduard Vilaplana1] Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain [2] Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Madrid, Spain.
María B Sánchez-Saudinós1] Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain [2] Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Madrid, Spain.
Jordi Clarimón1] Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain [2] Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Madrid, Spain.
Mar Hernández-GuillamonDepartment of Neurology, Hospital Vall d'Hebron, Vall d'Hebron Research Insitute. Universitat Autònoma de Barcelona, Barcelona, Spain.
Josep MunueraMRI Unit Badalona, Institut de Diagnòstic per la Imatge, Hospital Germans Trias i Pujol, Barcelona, Spain.
Ellen GelpiNeurological Tissue Bank of the Biobanc-Hospital Clinic-Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
Beatriz Gómez-AnsonNeuroradiology Unit, Department of Radiology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
Manel de Juan-DelagoNeuroradiology Unit, Department of Radiology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
Raquel Delgado-MederosStroke Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.
Joan MontanerDepartment of Neurology, Hospital Vall d'Hebron, Vall d'Hebron Research Insitute. Universitat Autònoma de Barcelona, Barcelona, Spain.
Angel OisDepartment of Neurology, Hospital del Mar, Barcelona, Spain.
Sergi AmaroDepartment of Neurology, Hospital Clínic, Barcelona, Spain.
Rafael Blesa1] Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain [2] Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Madrid, Spain.
Joan Martí-FàbregasStroke Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.
Alberto Lleó1] Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain [2] Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Madrid, Spain.
Juan Fortea1] Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain [2] Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, CIBERNED, Madrid, Spain.
Universitat Autònoma de Barcelona · ESHospital de Sant Pau · ESBanc de Sang i Teixits · ESBiomedical Research Networking Center on Neurodegenerative Diseases · ESHospital Clínic de Barcelona · ESHospital Del Mar · ESHospital de Sant Joan Despí Moisès Broggi · ESInstitut d'Investigació en Ciències de la Salut Germans Trias i Pujol · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Atraumatic convexal subarachnoid hemorrhage (cSAH) in elderly patients is a rare entity that has been associated with cerebral amyloid angiopathy (CAA) and intracerebral hematomas (ICH). To characterize this entity and to study these associations, 22 patients over 60 with cSAH were included in a multicenter ambispective cohort study. Clinical data, magnetic resonance imaging (MRI) studies, APOE genotyping, and cerebrospinal fluid (CSF) biomarkers were evaluated. Results were compared with data from healthy controls (HC), non-cSAH CAA patients (CAAo), and Alzheimer disease patients. Convexal subarachnoid hemorrhage presented with transient sensory or motor symptoms. At follow-up (median 30.7 months), 5 patients had died, 6 survivors showed functional disability (modified Rankins Scale (mRS)>2), and 12 cognitive impairment. Four patients had prior ICH and six had an ICH during follow-up. CSF-Aß40 and Aß42 levels were lower in cSAH and CAAo compared with HC. Convexal subarachnoid hemorrhage presented an APOE-ɛ2 overrepresentation and CAAo had an APOE-ɛ4 overrepresentation. On MRI, all patients fulfilled CAA-modified Boston criteria and 9 showed cortical ischemia in the surrounding cortex or the vicinity of superficial siderosis. The neuropathologic study, available in one patient, showed severe CAA and advanced Alzheimer-type pathology. Convexal subarachnoid hemorrhage in the elderly is associated with cognitive impairment and lobar ICH occurrence. Our findings support the existence of an underlying CAA pathology.

Indexed as

Cerebral Amyloid AngiopathySubarachnoid HemorrhageAgedAged, 80 and overAmyloid beta-PeptidesApolipoproteins EDisease-Free SurvivalFemaleFollow-Up StudiesGenotypeHumansMagnetic Resonance AngiographyMaleMiddle AgedPeptide FragmentsRadiographyAmyloid beta-Peptidesamyloid beta-protein (1-40)amyloid beta-protein (1-42)Apolipoproteins EPeptide Fragments

Identifiers

PMID25735919
PMCPMC4420868
OpenAlexW2024740970

What OpenQuestion holds

Textmetadata
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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.