The Journal of Thoracic and Cardiovascular Surgery, Vol 92, 73-78, Copyright © 1986 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
Serum concentrations of prostacyclin and thromboxane in children before, during, and after cardiopulmonary bypass
WH Fleming, LB Sarafian, MP Leuschen, MC Newland, EM Kennedy, JD Kugler, JW Chapin, BJ Hurlbert, DL Bolam and RM Nelson Jr
Twenty-six consecutive pediatric patients undergoing reparative procedures
necessitating cardiopulmonary bypass were prospectively studied to
determine changes in serum levels of 6-keto-prostaglandin F1 alpha and
thromboxane B2. Cardiac lesions included acyanotic lesions (five patients),
obstructive lesions (10 patients), and right-to-left shunts (11 patients).
There was a significant (p less than 0.05) increase in 6-keto-prostaglandin
F1 alpha from preoperative levels measured at the time of arterial and
venous cannula insertion. This concentration was maintained throughout
cardiopulmonary bypass and remained significantly elevated (p less than
0.001) in the recovery room, but returned to preoperative levels by the
morning after the operation. Preoperative levels of thromboxane B2 varied
widely and were not significantly different from intraoperative levels. The
postoperative levels of thromboxane B2, however, were significantly
different (p less than 0.05) from the intraoperative levels. In the
pediatric age group undergoing cardiopulmonary bypass, 6-keto-
prostaglandin F1 alpha and thromboxane B2 change during bypass but do not
significantly differ when preoperative levels are compared to postoperative
values.