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Severe aortic valve stenosis in the elderly: high prevalence of sleep-related breathing disorders

Overview of attention for article published in Clinical Interventions in Aging, January 2015
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • Good Attention Score compared to outputs of the same age (71st percentile)
  • High Attention Score compared to outputs of the same age and source (83rd percentile)

Mentioned by

twitter
7 tweeters

Citations

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3 Dimensions

Readers on

mendeley
26 Mendeley
Title
Severe aortic valve stenosis in the elderly: high prevalence of sleep-related breathing disorders
Published in
Clinical Interventions in Aging, January 2015
DOI 10.2147/cia.s87189
Pubmed ID
Authors

Stephan Steiner, Tobias Zeus, Malte Kelm, Katharina Hellhammer, Marc Merx, Stefanie Keymel

Abstract

Aortic valve stenosis is common in the elderly, with a prevalence of nearly 3% in patients aged 75 years or older. Despite the fact that sleep-related breathing disorders (SRBD) are thought to be associated with cardiac disease, little is known about their prevalence in this patient cohort. The purpose of this study was to evaluate the prevalence of SRBD in older patients with aortic valve stenosis admitted for transcatheter aortic valve implantation. Forty-eight consecutive patients (mean age 81±6 years; 37.5% male) with symptomatic aortic valve stenosis and considered for transcatheter aortic valve replacement were screened for SRBD. Sleep studies were performed by in-hospital unattended cardiorespiratory polygraphy measuring nasal air flow, chest and abdominal efforts, as well as oxygen saturation and body position. The patients were divided in subgroups dependent on the documented apnea-hypopnea index (AHI; no SRBD was defined as an AHI of <5 events/hour; mild SRBD as AHI 5-15 events/hour, and moderate to severe SRBD as AHI ≥15 events/hour). Thirty-seven patients (77%) had SRBD defined as an AHI of ≥5 events/hour. Eleven patients had an unremarkable investigation, with AHI <5 events/hour (mean 3.0±1.3 events/hour). Among patients with sleep apnea, 19 patients had mild SRBD, with an AHI of 5-15 events/hour (mean 9.9±3.4 events/hour) and 18 patients had moderate to severe SRBD (mean 26.6±11.3 events/hour). Mainly, obstructive apneas were found. Subgroups were not different regarding EuroSCORE (European System for Cardiac Operative Risk Evaluation) or aortic valve area. Also, no correlations were found between AHI and the additive or logistic EuroSCORE or aortic valve area. Significant correlations were found for AHI and N-terminal of the prohormone brain natriuretic peptide (r=0.53; P=0.003) and for AHI and glomerular filtration rate (r=-0.39; P=0.007). SRBD is common in elderly patients with symptomatic aortic valve stenosis admitted for transcatheter aortic valve replacement. Interestingly, this finding is not reflected by the currently used risk scores. Further randomized studies are needed to evaluate the clinical significance of concomitant SRBD in the management of severe aortic stenosis.

Twitter Demographics

The data shown below were collected from the profiles of 7 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 26 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 4%
Unknown 25 96%

Demographic breakdown

Readers by professional status Count As %
Researcher 5 19%
Student > Bachelor 5 19%
Other 3 12%
Student > Master 3 12%
Professor 1 4%
Other 6 23%
Unknown 3 12%
Readers by discipline Count As %
Medicine and Dentistry 17 65%
Neuroscience 1 4%
Unspecified 1 4%
Chemistry 1 4%
Engineering 1 4%
Other 1 4%
Unknown 4 15%

Attention Score in Context

This research output has an Altmetric Attention Score of 4. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 30 September 2015.
All research outputs
#1,325,143
of 6,420,027 outputs
Outputs from Clinical Interventions in Aging
#209
of 828 outputs
Outputs of similar age
#54,915
of 196,913 outputs
Outputs of similar age from Clinical Interventions in Aging
#10
of 61 outputs
Altmetric has tracked 6,420,027 research outputs across all sources so far. Compared to these this one has done well and is in the 79th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 828 research outputs from this source. They receive a mean Attention Score of 4.1. This one has gotten more attention than average, scoring higher than 74% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 196,913 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 71% of its contemporaries.
We're also able to compare this research output to 61 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 83% of its contemporaries.