Evidence map›Paper›PMID 33839820›Full record

ArticleActa neurochirurgica. Supplement2021

Perioperative Dynamics of Intracranial B-waves of Blood Flow Velocity in the Basal Cerebral Arteries in Patients with Brain Arteriovenous Malformation.

Vladimir Semenyutin, Vugar Aliev, Grigory Panuntsev, Andreas Patzak

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Article in Acta neurochirurgica. Supplement, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

0 citing papers in PubMed, 1 citations in OpenAlex.

No citing paper in PubMed yet.

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

4 authors at 2 institutions in 2 countries.

Vladimir SemenyutinLaboratory of Brain Circulation Pathology, Russian Polenov Neurosurgical Institute of the Almazov National Medical Research Centre, Saint Petersburg, Russia. lbcp@mail.ru.
Vugar AlievLaboratory of Brain Circulation Pathology, Russian Polenov Neurosurgical Institute of the Almazov National Medical Research Centre, Saint Petersburg, Russia.
Grigory PanuntsevLaboratory of Brain Circulation Pathology, Russian Polenov Neurosurgical Institute of the Almazov National Medical Research Centre, Saint Petersburg, Russia.
Andreas PatzakJohannes-Mueller Institute of Vegetative Physiology University Hospital Charité, Humboldt University of Berlin, Berlin, Germany.
Federal Almazov North-West Medical Research Centre · RUHumboldt-Universität zu Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intracranial B-waves (8-30 mHz) of blood flow velocity (BFV) in the cerebral arteries are observed in various pathologies of the brain. Changes in B-waves of BFV in pathological arteriovenous shunting and "steal" syndrome remain poorly understood. The aim of this study was to evaluate the dynamics of the B-wave amplitude of BFV (BWA) in patients with an arteriovenous malformation (AVM) in the brain. In 38 such patients, cerebral autoregulation (CA) was assessed using a cuff test and transfer function analysis of the mean blood pressure (BP) and BFV in the basal cerebral arteries within the range of Mayer waves (80-120 mHz). BWA was calculated with spectral analysis. Reliable CA impairment was denoted on the AVM side as compared with the contralateral side prior to intervention. BWA was greater on the AVM side (4.5 ± 2.7 cm/s) than on the contralateral side (2.2 ± 1.4 cm/s, p < 0.05). After embolization, there was a reliable improvement (p < 0.05) in CA and a decrease in BWA on the AVM side (2.7 ± 1.8 cm/s). Thus, a considerable increase in BWA on the AVM side that is not induced by BP fluctuations may indicate additional compensation for blood flow under conditions of reduced perfusion pressure. This assumption is supported by a reduction in BWA after AVM embolization.

Indexed as

Embolization, TherapeuticIntracranial Arteriovenous MalformationsBlood Flow VelocityBrainCerebral ArteriesHumansBrain arteriovenous malformationCerebral autoregulationEndovascular interventionIntracranial B-wavesTransfer function analysis

Identifiers

PMID33839820
OpenAlexW3153843487

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.