Evidence map›Paper›PMID 28828627›Full record

ArticleSleep & breathing = Schlaf & Atmung2018

Nocturnal blood pressure fluctuations measured by using pulse transit time in patients with severe obstructive sleep apnea syndrome.

Jennifer Gehring, Heiko Gesche, Gesine Drewniok, Gert Küchler, Andreas Patzak

Abstract read
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In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.0field-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

19 citing papers in PubMed, 34 citations in OpenAlex.

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  12. Deep learning applied to polysomnography to predict blood pressure in obstructive sleep apnea and obesity hypoventilation: a proof-of-concept study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2020
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  15. Sleep Disordered Breathing and Cardiovascular Diseases.Journal of atherosclerosis and thrombosis · 2019
    Review
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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

5 authors at 1 institution in 1 country.

Jennifer GehringSOMNOmedics GmbH, Randersacker, Germany.
Heiko GescheInstitute of Vegetative Physiology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
Gesine DrewniokKlinik Amsee, Schlaflabor, Waren, Germany.
Gert KüchlerSOMNOmedics GmbH, Randersacker, Germany.
Andreas PatzakInstitute of Vegetative Physiology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany. andreas.patzak@charite.de.ORCID 0000-0002-1088-6875
Charité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObstructive sleep apnea syndrome (OSAS) is related to arterial hypertension. In the present study, we test the hypothesis that patients with severe OSAS have excessive apnea induced blood pressure (BP).

methodsWe investigated 97 patients with an apnea/hypopnea index (AHI) greater than 30. Systolic BP (SBP) was continuously determined by using the pulse transit time (PTT). Apnea/hypopnea induced nocturnal BP fluctuations (NBPFs) were detected and showed phenomena of continuous increases of the SBP baseline. Such periods of SBP baseline elevations ≥ 10 mmHg were called superposition. Respiratory and cardiac parameters were obtained from the polysomnographic investigation.

resultsEighty-four periods of superposition were detected in 48 patients. They occurred mainly during REM sleep (76%). Apnea duration was increased and the time in respiration was reduced in periods of superposition compared to non-superposition periods. In superposition periods mean oxygen saturation (SpO

conclusionsThe study reveals that patients with severe OSAS can have periods of BP superposition during night with extremely high SBP and very low oxygen saturation, which may add to a high risk for cardiovascular events during the night.

Indexed as

Blood PressureDarknessPulse Wave AnalysisFemaleHumansHypertensionMaleOxygenRetrospective StudiesSleep Apnea, ObstructiveOxygenBlood pressureHypertensionNocturnal blood pressure fluctuationsObstructive sleep apneaPulse transit time

Identifiers

PMID28828627
OpenAlexW2750522403

What OpenQuestion holds

Textmetadata
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.