Abstract
Careful rewarming of perfusion blood following cardiopulmonary bypass surgery is critical to a successful outcome, but the optimal rewarming strategy is not clear. The purpose of this study was to derive a formula for a rewarming index (defined as [rewarming time × perfusion flow]/[body weight × body surface area]) that would enable the calculation of the ideal rewarming conditions for pediatric cardiopulmonary perfusion. We retrospectively investigated 220 pediatric cardiopulmonary bypass operations conducted from July 2005 to June 2008 in Okayama University Hospital, Japan. We determined the formula as Φ = (T × Q)/(R × S) = |0.9127P - 0.0152|, where Φ = rewarming index, T = rewarming time (min), Q = perfusion volume (L), R = body weight (kg), S = body surface area (m2), and P = temperature gap (). The formula will help those who perform pediatric cardiopulmonary bypass surgery to establish ideal perfusion flow conditions and to control physiological temperature during rewarming.
| Original language | English |
|---|---|
| Pages (from-to) | 896-903 |
| Number of pages | 8 |
| Journal | Artificial Organs |
| Volume | 33 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 2009 |
Fingerprint
Keywords
- Body temperature
- Flow rate
- Formula
- Hypothermia
- Pediatric cardiopulmonary bypass
- Perfusion
- Rewarming
ASJC Scopus subject areas
- Biomaterials
- Biomedical Engineering
- Bioengineering
- Medicine (miscellaneous)
Cite this
The rewarming index formula for pediatric cardiopulmonary perfusion. / Itoh, Hideshi; Kasahara, Shingo; Fujii, Yasuhiro; Kotani, Yasuhiro; Arai, Sadahiko; Sano, Shunji.
In: Artificial Organs, Vol. 33, No. 11, 11.2009, p. 896-903.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The rewarming index formula for pediatric cardiopulmonary perfusion
AU - Itoh, Hideshi
AU - Kasahara, Shingo
AU - Fujii, Yasuhiro
AU - Kotani, Yasuhiro
AU - Arai, Sadahiko
AU - Sano, Shunji
PY - 2009/11
Y1 - 2009/11
N2 - Careful rewarming of perfusion blood following cardiopulmonary bypass surgery is critical to a successful outcome, but the optimal rewarming strategy is not clear. The purpose of this study was to derive a formula for a rewarming index (defined as [rewarming time × perfusion flow]/[body weight × body surface area]) that would enable the calculation of the ideal rewarming conditions for pediatric cardiopulmonary perfusion. We retrospectively investigated 220 pediatric cardiopulmonary bypass operations conducted from July 2005 to June 2008 in Okayama University Hospital, Japan. We determined the formula as Φ = (T × Q)/(R × S) = |0.9127P - 0.0152|, where Φ = rewarming index, T = rewarming time (min), Q = perfusion volume (L), R = body weight (kg), S = body surface area (m2), and P = temperature gap (). The formula will help those who perform pediatric cardiopulmonary bypass surgery to establish ideal perfusion flow conditions and to control physiological temperature during rewarming.
AB - Careful rewarming of perfusion blood following cardiopulmonary bypass surgery is critical to a successful outcome, but the optimal rewarming strategy is not clear. The purpose of this study was to derive a formula for a rewarming index (defined as [rewarming time × perfusion flow]/[body weight × body surface area]) that would enable the calculation of the ideal rewarming conditions for pediatric cardiopulmonary perfusion. We retrospectively investigated 220 pediatric cardiopulmonary bypass operations conducted from July 2005 to June 2008 in Okayama University Hospital, Japan. We determined the formula as Φ = (T × Q)/(R × S) = |0.9127P - 0.0152|, where Φ = rewarming index, T = rewarming time (min), Q = perfusion volume (L), R = body weight (kg), S = body surface area (m2), and P = temperature gap (). The formula will help those who perform pediatric cardiopulmonary bypass surgery to establish ideal perfusion flow conditions and to control physiological temperature during rewarming.
KW - Body temperature
KW - Flow rate
KW - Formula
KW - Hypothermia
KW - Pediatric cardiopulmonary bypass
KW - Perfusion
KW - Rewarming
UR - http://www.scopus.com/inward/record.url?scp=70450230387&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70450230387&partnerID=8YFLogxK
U2 - 10.1111/j.1525-1594.2009.00945.x
DO - 10.1111/j.1525-1594.2009.00945.x
M3 - Article
C2 - 20021468
AN - SCOPUS:70450230387
VL - 33
SP - 896
EP - 903
JO - Artificial Organs
JF - Artificial Organs
SN - 0160-564X
IS - 11
ER -