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Early abnormal transient hyperemic response test can predict delayed ischemic neurologic deficit in subarachnoid hemorrhage

Overview of attention for article published in Critical Ultrasound Journal, January 2018
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  • Good Attention Score compared to outputs of the same age (65th percentile)

Mentioned by

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4 tweeters
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1 Facebook page
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1 Google+ user

Citations

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4 Dimensions

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15 Mendeley
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Title
Early abnormal transient hyperemic response test can predict delayed ischemic neurologic deficit in subarachnoid hemorrhage
Published in
Critical Ultrasound Journal, January 2018
DOI 10.1186/s13089-017-0079-7
Pubmed ID
Authors

Hosam Al-Jehani, Mark Angle, Judith Marcoux, Jeanne Teitelbaum

Abstract

Early detection of vasospasm is crucial to prevent significant delayed ischemic neurological deficit post subarachnoid hemorrhage. The standard methods of detection, including cerebral angiogram and computed tomography are invasive and not safe to be repeated, as is very often indicated clinically. Transient hyperemic response test has been previously used to predict autoregulation failure in traumatic brain injury and subarachnoid hemorrhage. We investigate the usability of transient hyperemic response test as a predictor of clinical vasospasm in a cohort of patients with aneurismal subarachnoid hemorrhage. A retrospective review of all THRT examinations done between January 2011 and July 2012 conducted at Montreal Neurological Institute and Hospital and the Montreal General Hospital. Patients diagnosed with aSAH in which the THRT was performed within the first 24-48 h of admission were included in the study. Two-dimensional transcranial Doppler images were obtained and velocities were recorded. A positive response was one in which the velocity was increased by more than 9% of the baseline systolic velocity, indicating an intact cerebral autoregulation. Lindegaard ratio > 3 is considered abnormal and in the context of elevated systolic velocity of the MCA, is highly suggestive of DIND. Fifteen patients met the inclusion criteria. A total of 6 patients developed clinical and radiological vasospasm. Out of these 6 patients, 5 (83%) had an abnormal THRT in the initial TCD assessment (p = 0.0406). We found that abnormal transient hyperemic response test readings are predictive of subsequent vasospasm development. The results of this small retrospective study support the notion that transient hyperemic response test has predictive value in vasospasm development and may prove useful in patient monitoring and successful clinical management.

Twitter Demographics

The data shown below were collected from the profiles of 4 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 15 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 15 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 5 33%
Other 3 20%
Student > Postgraduate 2 13%
Student > Doctoral Student 1 7%
Student > Master 1 7%
Other 2 13%
Unknown 1 7%
Readers by discipline Count As %
Medicine and Dentistry 6 40%
Neuroscience 5 33%
Business, Management and Accounting 1 7%
Unknown 3 20%

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 23 January 2018.
All research outputs
#3,468,717
of 12,406,706 outputs
Outputs from Critical Ultrasound Journal
#113
of 172 outputs
Outputs of similar age
#120,319
of 357,646 outputs
Outputs of similar age from Critical Ultrasound Journal
#7
of 7 outputs
Altmetric has tracked 12,406,706 research outputs across all sources so far. This one has received more attention than most of these and is in the 71st percentile.
So far Altmetric has tracked 172 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.2. This one is in the 33rd percentile – i.e., 33% of its peers scored the same or lower than it.
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 357,646 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 65% of its contemporaries.
We're also able to compare this research output to 7 others from the same source and published within six weeks on either side of this one.