Evidence map›Paper›PMID 35985353›Full record

ReviewLancet (London, England)2022

Spontaneous subarachnoid haemorrhage.

Jan Claassen, Soojin Park

Registry-linked trialOpen access · greenAbstract readReview
In one paragraph

Review in Lancet (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06804421 (Late Neurological Ischemic Deficit in Patients Suffering From Subarachnoid Hemorrhage), which is not on this map. Cited by 341 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
341citing papers in PubMed, 10 pooled it
59.6field-weighted citation impact, top 1% 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.

NCT06804421 recruitingnot on this mapstarted 2024, after this paper: background citation

Late Neurological Ischemic Deficit in Patients Suffering From Subarachnoid Hemorrhage: Diagnosis and Treatment

TypeobservationalSponsorFondazione IRCCS San Gerardo dei TintoriRan2024 to 2026Enrolled1,400ConditionsAneurysmal Subarachnoid Haemorrhage, Delayed Ischemic Neurological Deficit
3 · Its place in the literature

Who cites it

341 citing papers in PubMed, 10 syntheses or guidelines pooled it, 515 citations in OpenAlex.

  1. Pooled it
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  5. Comparison of Stent-Assisted and Non-Stent-Assisted coil embolization in the treatment of Wide-Neck intracranial aneurysms: A Meta-Analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Pooled it
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  11. Quality of life after tranexamic acid in subarachnoid hemorrhage: post-hoc analysis of the ULTRA trial.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
    Trial
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281 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Jan ClaassenDepartment of Neurology, Columbia University Irving Medical Center, New York Presbyterian Hospital, New York, NY, USA. Electronic address: jc1439@cumc.columbia.edu.
Soojin ParkDepartment of Neurology, Columbia University Irving Medical Center, New York Presbyterian Hospital, New York, NY, USA.
NewYork–Presbyterian Hospital · US

Funding

RECONFIG - REcovery of CONsciousness Following Intracerebral hemorrhaGeR01NS106014 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI CLAASSEN, JAN · 2019 to 2023
$3.6M
Machine Learning to Optimize Management of Acute Hydrocephalus PatientsR21NS113055 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI PARK, SOOJIN · 2020 to 2020
$446k
BAsIC - Brain-computer-interface practical Application in the Intensive Care unit: a pilot studyR03NS112760 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI CLAASSEN, JAN · 2019 to 2020
$162k
NINDS NIH HHS R01 NS106014NINDS NIH HHS R03 NS112760NINDS NIH HHS R21 NS113055
6 · The paper itself

Abstract

Subarachnoid haemorrhage (SAH) is the third most common subtype of stroke. Incidence has decreased over past decades, possibly in part related to lifestyle changes such as smoking cessation and management of hypertension. Approximately a quarter of patients with SAH die before hospital admission; overall outcomes are improved in those admitted to hospital, but with elevated risk of long-term neuropsychiatric sequelae such as depression. The disease continues to have a major public health impact as the mean age of onset is in the mid-fifties, leading to many years of reduced quality of life. The clinical presentation varies, but severe, sudden onset of headache is the most common symptom, variably associated with meningismus, transient or prolonged unconsciousness, and focal neurological deficits including cranial nerve palsies and paresis. Diagnosis is made by CT scan of the head possibly followed by lumbar puncture. Aneurysms are commonly the underlying vascular cause of spontaneous SAH and are diagnosed by angiography. Emergent therapeutic interventions are focused on decreasing the risk of rebleeding (ie, preventing hypertension and correcting coagulopathies) and, most crucially, early aneurysm treatment using coil embolisation or clipping. Management of the disease is best delivered in specialised intensive care units and high-volume centres by a multidisciplinary team. Increasingly, early brain injury presenting as global cerebral oedema is recognised as a potential treatment target but, currently, disease management is largely focused on addressing secondary complications such as hydrocephalus, delayed cerebral ischaemia related to microvascular dysfunction and large vessel vasospasm, and medical complications such as stunned myocardium and hospital acquired infections.

Indexed as

Brain IschemiaHypertensionIntracranial AneurysmSubarachnoid HemorrhageHumansQuality of Life

Identifiers

PMID35985353
PMCPMC9987649
OpenAlexW4293276167

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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 Socratic graph.