Physiological measurement
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Physiological measurement · Sep 2008
Comment LetterComment on 'Abnormal autonomic cardiac response to transient hypoxia in sickle cell anemia'.
Our recent results support the suggestions made by Sangkatumvong et al regarding autonomic dysfunction in sickle cell anemia.
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Physiological measurement · Sep 2008
Comparative StudyArterial flow measurements during reactive hyperemia using NIRS.
Non-invasive evaluation of peripheral perfusion may be useful in many contexts including clinical research. We validated a novel non-invasive spectroscopy technique to quantify forearm arterial inflow. This method, which is based on the measurement of tissular total hemoglobin variations after an ischemic period, was compared to strain gauge plethysmography (SGP). ⋯ Twenty-seven serial measurements were then made to evaluate flow variation during forearm reactive hyperemia. SGP and NIRS methods showed excellent reproducibility with the same intra-class correlation coefficients (0.98). In conclusion, the NIRS technique appears well suited for non-invasive evaluation of quantitative arterial forearm flow.