Evidence map›Paper›PMID 32366972›Full record

Trial reportScientific reports2020

Double hemispheric Microdialysis study in poor-grade SAH patients.

Ramon Torné, Diego Culebras, Gerard Sanchez-Etayo, Sergio García-García, Guido Muñoz, Laura Llull, Sergio Amaro, Christian Heering, Jordi Blasco, Elizabeth Zavala and 1 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Observational
  5. Article
  6. Blood-brain barrier dysfunction in intensive care unit.Journal of intensive medicine · 2023
    Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
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

11 authors at 1 institution in 1 country.

Ramon TornéNeurological Surgery Department, Hospital Clinic of Barcelona, Barcelona, Spain. torne@clinic.cat.
Diego CulebrasNeurological Surgery Department, Hospital Clinic of Barcelona, Barcelona, Spain.
Gerard Sanchez-EtayoIntensive Care Unit, Hospital Clinic of Barcelona, Barcelona, Spain.
Sergio García-GarcíaNeurological Surgery Department, Hospital Clinic of Barcelona, Barcelona, Spain. garcia24@clinic.cat.
Guido MuñozIntensive Care Unit, Hospital Clinic of Barcelona, Barcelona, Spain.
Laura LlullNeurology Department, Comprehensive Stroke Unit, Hospital Clinic of Barcelona, Barcelona, Spain.
Sergio AmaroNeurology Department, Comprehensive Stroke Unit, Hospital Clinic of Barcelona, Barcelona, Spain.
Christian HeeringIntensive Care Unit, Hospital Clinic of Barcelona, Barcelona, Spain.
Jordi BlascoRadiology Department, Angioradiology Section, Hospital Clinic of Barcelona, Barcelona, Spain.
Elizabeth ZavalaIntensive Care Unit, Hospital Clinic of Barcelona, Barcelona, Spain.
Joaquim EnseñatNeurological Surgery Department, Hospital Clinic of Barcelona, Barcelona, Spain.
Hospital Clínic de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Delayed cerebral ischemia (DCI) is a dreadful complication present in 30% of subarachnoid hemorrhage (SAH) patients. DCI prediction and prevention are burdensome in poor grade SAH patients (WFNS 4-5). Therefore, defining an optimal neuromonitoring strategy might be cumbersome. Cerebral microdialysis (CMD) offers near-real-time regional metabolic data of the surrounding brain. However, unilateral neuromonitoring strategies obviate the diffuse repercussions of SAH. To assess the utility, indications and therapeutic implications of bilateral CMD in poor grade SAH patients. Poor grade SAH patients eligible for multimodal neuromonitoring were prospectively collected. Aneurysm location and blood volume were assessed on initial Angio-CT scans. CMD probes were bilaterally implanted and maintained, at least, for 48 hours (h). Ischemic events were defined as a Lactate/Pyruvate ratio >40 and Glucose concentration <0.7 mmol/L. 16 patients were monitored for 1725 h, observing ischemic events during 260 h (15.1%). Simultaneous bilateral ischemic events were rare (5 h, 1.9%). The established threshold of ≥7 ischemic events displayed a specificity and sensitivity for DCI of 96.2% and 83.3%, respectively. Bilateral CMD is a safe and useful strategy to evaluate areas at risk of suffering DCI in SAH patients. Metabolic crises occur bilaterally but rarely simultaneously. Hence, unilateral neuromonitoring strategies underestimate the risk of infarction and the possibility to offset its consequences.

Indexed as

Brain IschemiaCerebral AngiographyMicrodialysisSubarachnoid HemorrhageTomography, X-Ray ComputedAgedFemaleHumansMaleMiddle AgedMonitoring, Physiologic

Identifiers

PMID32366972
PMCPMC7198586
OpenAlexW3023221535

What OpenQuestion holds

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LicenceCC BY
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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.