Measurement of subcutaneous adipose tissue blood flow in the morbidly obese using a laser Doppler velocimeter

Gerald A. Klassen; Barry E. Paton; Geoff Maksym; David Janigan M.D.; Bernard Perey M.D.

doi:10.1117/12.60230

1 August 1992 Measurement of subcutaneous adipose tissue blood flow in the morbidly obese using a laser Doppler velocimeter

Gerald A. Klassen, Barry E. Paton, Geoff Maksym, David Janigan M.D., Bernard Perey M.D.

Author Affiliations +

Proceedings Volume 1649, Optical Fibers in Medicine VII; (1992) https://doi.org/10.1117/12.60230
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

Using a laser Doppler velocimeter (LDV) subcutaneous adipose tissue blood flow (AF) was recorded in the upright and supine positions in the upper and lower abdomen in 22 morbidly obese patients before gastroplasty. Age was 42 +/- 3 (mean +/- SEM), weight 135 +/- 7 kg, and body mass index (BMI) 51 +/- 3. Adipose flow expressed as mV was: supine, upper abdomen 647 +/- 23, lower abdomen 604 +/- 24; upright, upper abdomen 621 +/- 27, lower abdomen 607 +/- 29. AF was significantly more in the upper than lower abdomen (supine position) and AF was significantly lower in the lower abdomen upright than the upper abdomen supine. Regression analysis of age indicates that blood flow decreases in the lower abdomen so that in the supine position the difference between upper and lower abdomen AF increases. Similar analysis of BMI did not indicate significant trends. These data indicate that with morbid obesity there is lower tissue blood flow to the lower abdomen. This may explain why such patients may develop areas of painful ischemic necrosis in the dependent region of their anterior abdominal pannus.

Citation Download Citation

Gerald A. Klassen, Barry E. Paton, Geoff Maksym, David Janigan M.D., and Bernard Perey M.D. "Measurement of subcutaneous adipose tissue blood flow in the morbidly obese using a laser Doppler velocimeter", Proc. SPIE 1649, Optical Fibers in Medicine VII, (1 August 1992); https://doi.org/10.1117/12.60230

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