Applanation tonometry: a reliable technique to assess aortic pulse wave velocity in spinal cord injury

Study design: Within-subject repeated measures. Objectives: To determine the intra- and inter-tester reliability of aortic pulse wave velocity (aPWV) measurements collected using applanation tonometry in individuals with spinal cord injury (SCI). Setting: Inpatient Rehabilitation Centre and outpatie...

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Bibliographic Details
Published in:Spinal cord 2014-04, Vol.52 (4), p.272-275
Main Authors: Currie, K D, Hubli, M, Krassioukov, A V
Format: Article
Language:English
Subjects:
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Acute Disease
Anatomy
Aorta - physiopathology
Biomedical and Life Sciences
Biomedicine
Blood Pressure - physiology
Brachial Artery - physiopathology
Carotid Arteries - physiopathology
Chronic Disease
Electrocardiography
Female
Femoral Artery - physiopathology
Heart Rate - physiology
Human Physiology
Humans
Male
Manometry - methods
Middle Aged
Neurochemistry
Neuropsychology
Neurosciences
original-article
Pulse Wave Analysis - methods
Reproducibility of Results
Rest - physiology
Spinal Cord Injuries - diagnosis
Spinal Cord Injuries - physiopathology
Supine Position - physiology
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Summary:Study design: Within-subject repeated measures. Objectives: To determine the intra- and inter-tester reliability of aortic pulse wave velocity (aPWV) measurements collected using applanation tonometry in individuals with spinal cord injury (SCI). Setting: Inpatient Rehabilitation Centre and outpatient Clinic in Vancouver, BC, Canada. Methods: Fifteen men and three women with traumatic SCI (age: 46±16 years; C3-L1; American Spinal Injury Association Impairment Scale A-D; 2–284 months post injury) participated in two testing sessions separated by an average of 2 days. During each testing session, aPWV measurements were collected in the supine position following 10 min of rest. Arterial blood pressure waveforms were collected simultaneously by two trained raters at the carotid and femoral arterial sites using applanation tonometry. Heart rate was continuously measured using a single-lead electrocardiogram, whereas brachial blood pressures were measured at 5-min intervals using an automated device. Results: Intra- and inter-tester aPWV measurements demonstrated almost perfect reliability with intraclass correlation coefficients of 0.91 and 0.98 ( P
ISSN:1362-4393
1476-5624
DOI:10.1038/sc.2013.176