Serial assessment of laser doppler flow during acute pain crises in sickle cell disease

Patricia Ann Shi, Deepa Manwani, Olugbenga Olowokure, Vijay Nandi

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Changes in basal laser Doppler flowmetry (LDF) of skin blood flow in sickle cell disease are reported to have pathophysiologic relevance in pain crisis. This is the first study to strictly control for LDF variability in determining the value of serial, basal (unprovoked) skin LDF as a practical method to assess resolution of acute pain crisis in sickle cell patients. Daily LDF measurements were repeated on the exact same skin areas of the calf and forehead throughout each of 12 hospital admissions for uncomplicated acute pain crisis.A progressive increase in perfusion was observed in the calf throughout hospitalization as pain crisis resolved, but measurement reproducibility in the calf was poor. Reproducibility in the forehead was better, but no significant trend over time in perfusion was seen. There was no significant correlation between perfusion and pain scores over time. There was also no significant pattern of LDF oscillations over time.In conclusion, only perfusion units and not oscillatory patterns of LDF have probable pathophysiological significance in sickle cell disease vaso-occlusion. The reproducibility of basal skin LDF specifically in sickle cell disease needs to be confirmed.

Original languageEnglish (US)
Pages (from-to)277-282
Number of pages6
JournalBlood Cells, Molecules, and Diseases
Volume53
Issue number4
DOIs
StatePublished - Dec 1 2014

Keywords

  • Acute pain crisis
  • Laser Doppler flowmetry
  • Microcirculation
  • Sickle cell disease

ASJC Scopus subject areas

  • Molecular Medicine
  • Molecular Biology
  • Hematology
  • Cell Biology

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