Evidence map›Paper›PMID 35370871›Full record

ArticleFrontiers in neurology2022

Continuous Intraarterial Nimodipine Infusion for the Treatment of Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage: A Retrospective, Single-Center Cohort Trial.

Andreas Kramer, Moritz Selbach, Thomas Kerz, Axel Neulen, Marc A Brockmann, Florian Ringel, Carolin Brockmann

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 20% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Observational
  6. 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

7 authors at 2 institutions in 1 country.

Andreas KramerDepartment of Neurosurgery, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany.
Moritz SelbachDepartment of Neuroradiology, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany.
Thomas KerzDepartment of Neurosurgery, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany.
Axel NeulenDepartment of Neurosurgery, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany.
Marc A BrockmannDepartment of Neuroradiology, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany.
Florian RingelDepartment of Neurosurgery, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany.
Carolin BrockmannDepartment of Neuroradiology, University Medical Center Mainz, Johannes Gutenberg University, Mainz, Germany.
University Medical Center of the Johannes Gutenberg University Mainz · DEJohannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Delayed cerebral ischemia (DCI) occurs after aneurysmal subarachnoid hemorrhage (aSAH). Continuous intraarterial nimodipine infusion (CIAN) is a promising approach in patients with intracranial large vessel vasospasm (LVV). The objective of this retrospective single-center cohort study was to evaluate the outcome in aSAH-patients treated with CIAN. Methods: CIAN was initiated and ended based on the clinical evaluation and transcranial Doppler (TCD), CT-angiography, CT-perfusion (PCT), and digital subtraction angiography (DSA). Nimodipine (0.5-2.0 mg/h) was administered continuously through microcatheters placed in the extracranial internal carotid and/or vertebral artery. Primary outcome measures were Glasgow Outcome Scale (GOS) at discharge and within 1 year after aSAH, and the occurrence of minor and major (<⅓ and >⅓ of LVV-affected territory) DCI-related infarctions in subsequent CT/MRI-scans. Secondary outcome measures were CIAN-associated complications. Results: A total of 17 patients underwent CIAN. Median onset of CIAN was 9 (3-13) days after aSAH, median duration was 5 (1-13) days. A favorable outcome (GOS 4-5) was achieved in 9 patients (53%) at discharge and in 13 patients within 1 year (76%). One patient died of posthemorrhagic cerebral edema. Minor cerebral infarctions occurred in five and major infarctions in three patients. One patient developed cerebral edema possibly due to CIAN. Normalization of PCT-parameters within 2 days was observed in 9/17 patients. Six patients showed clinical response and thus did not require PCT imaging. Conclusion: The favorable outcome in 76% of patients after 1 year is in line with previous studies. CIAN thus may be used to treat patients with severe therapy-refractory DCI.

Indexed as

aneurysmal subarachnoid hemorrhageclinical outcomecontinuous intraarterial nimodipine infusiondelayed cerebral ischemiainfarctionvasospasm

Identifiers

PMID35370871
PMCPMC8964957
OpenAlexW4220907963

What OpenQuestion holds

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Registered trials

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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.