Estimating blood volume in obese and morbidly obese patients.
Preoperative assessment of blood volume (BV) is important for patients undergoing surgery. The mean value for indexed blood volume ((In)BV) in normal weight adults is 70 mL/kg. Since (In)BV decreases in a non-linear manner with increasing weight, this value cannot be used for obese and morbidly obese patients. We present an equation that allows estimation of (In)BV over the entire range of body weights.
Lemmens
Harry J M
HJ
Department of Anesthesia, Stanford University School of Medicine, Stanford, CA 94305, USA. Hlemmens@stanford.edu
Bernstein
Donald P
DP
Brodsky
Jay B
JB
D001810:Blood Volume / Q000502:physiology; D015992:Body Mass Index; D006801:Humans; D009765:Obesity / Q000503:physiopathology*; D009767:Obesity, Morbid / Q000503:physiopathology*