Evidence map›Paper›PMID 31938989›Full record

ArticleSleep & breathing = Schlaf & Atmung2020

Acute stroke and TIA patients have specific polygraphic features of obstructive sleep apnea.

Akseli Leino, Susanna Westeren-Punnonen, Juha Töyräs, Sami Myllymaa, Timo Leppänen, Salla Ylä-Herttuala, Anu Muraja-Murro, Anne-Mari Kantanen, Jaana Autere, Pekka Jäkälä and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 19% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

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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

12 authors at 3 institutions in 2 countries.

Akseli LeinoDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland. akseli.leino@uef.fi.ORCID http://orcid.org/0000-0002-7918-9373
Susanna Westeren-PunnonenDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
Juha TöyräsDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
Sami MyllymaaDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
Timo LeppänenDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
Salla Ylä-HerttualaDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
Anu Muraja-MurroDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
Anne-Mari KantanenDepartment of Neurology, NeuroCenter, Kuopio University Hospital, Kuopio, Finland.
Jaana AutereDepartment of Neurology, NeuroCenter, Kuopio University Hospital, Kuopio, Finland.
Pekka JäkäläDepartment of Neurology, NeuroCenter, Kuopio University Hospital, Kuopio, Finland.
Esa MervaalaDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
Katja MyllymaaDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
Kuopio University Hospital · FIUniversity of Eastern Finland · FIQueensland University of Technology · AU

Funding

Academy of Finland 313697Academy of Finland 323536Business Finland 5133/31/2018The Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding 5041748The Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding 5041764The Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding 5041767The Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding 5041768The Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding 5041770The Research Committee of the Kuopio University Hospital Catchment Area for the State Research Funding 5041776
6 · The paper itself

Abstract

purposeObstructive sleep apnea (OSA) is associated with increased risk for stroke, which is known to further impair respiratory functions. However, it is unknown whether the type and severity of respiratory events are linked to stroke or transient ischemic attack (TIA). Thus, we investigate whether the characteristics of individual respiratory events differ between patients experiencing TIA or acute ischemic stroke and matched patients with clinically suspected sleep-disordered breathing.

methodsPolygraphic data of 77 in-patients with acute ischemic stroke (n = 49) or TIA (n = 28) were compared to age, gender, and BMI-matched patients with suspected sleep-disordered breathing and no cerebrovascular disease. Along with conventional diagnostic parameters (e.g., apnea-hypopnea index), durations and severities of individual apneas, hypopneas and desaturations were compared between the groups separately for ischemic stroke and TIA patients.

resultsStroke and TIA patients had significantly shorter apneas and hypopneas (p < 0.001) compared to matched reference patients. Furthermore, stroke patients had more central apnea events (p = 0.007) and a trend for higher apnea/hypopnea number ratios (p = 0.091). The prevalence of OSA (apnea-hypopnea index ≥ 5) was 90% in acute stroke patients and 79% in transient ischemic attack patients.

conclusionStroke patients had different characteristics of respiratory events, i.e., their polygraphic phenotype of OSA differs compared to matched reference patients. The observed differences in polygraphic features might indicate that stroke and TIA patients suffer from OSA phenotype recently associated with increased cardiovascular mortality. Therefore, optimal diagnostics and treatment require routine OSA screening in patients with acute cerebrovascular disease, even without previous suspicion of OSA.

Indexed as

AdultAgedAged, 80 and overFemaleHumansIschemic Attack, TransientMaleMiddle AgedMonitoring, PhysiologicSleep Apnea, ObstructiveStrokeApnea-hypopnea indexSeverity estimationSleep apneaStrokeTransient ischemic attack

Identifiers

PMID31938989
PMCPMC7679322
OpenAlexW2998856033

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.