Abstract
The distribution of deep temperatures of the patients (pts) and their changes during cardiopulmonary byuass (C. P. B.) was studied in 45pts with congenital heart diseases.
The forehead deep temperature (F-DT) and the sole deep temperature (S-DT) were measured and recorded by deep body thermometer system (Terumo Corp.) during C. P. B. for 15pts (9yrs, 27kg, 1.0m2BSA) with atrial septal defect, 15pts (4yrs, 15kg, 0.6m2BSA) with ventricular septal detect and 15pts (5yrs, 14kg 0.6m2BSA) with tetralogy of Fallot. Moderate hypothermia was applied using C. P. B..
The time for monitoring was 244±44min and for C. P. B, 53±12min. The time for cooling (28±8min) and warming (25±6min)was almost eaual. The F-DT (36.0±0.6°C) dropped auickly by cooling (29.7±1.4°C) and increased steeply by warming (35, 57plusmn;0.8°C) When the C. P. B. was terminated, the F-DT (35.1±0.6°C) slightly dropped and increased gradually again (36.3±0.8°C). However the S-DT (35.1±1.2°C) dropped very slowly by cooling (31.5±1.4°C) and increased slowly with a delay w. r. t. F-DT by warming (33.1±1.2°C). S-DT increased promptly when C. P. B. was terminated (34.2±2.1°C). The delay (20±7min) between the transition voints of F-DT and S-DT seemed to be due to low perfusion of lower extremities during C. P. B..
