[Changes in the respiratory coefficient during the intravenous administration of energy substrates in the early postoperative period in children].
Changes of the respiratory coefficient in the early period after operation on the abdominal organs were studied in 18 children during intravenous infusion of the main energy-producing substrates glucose and fat for 60 minutes. Their doses were in proportion to the age daily requirements and constant for each child during the whole period of study. The mean respiratory coefficient before infusion of the substrates was 0.84 +/- 0.005 on the first postoperative day, 0.857 +/- 0.009 on the second, and increased further to 0.888 +/- 0.008 and 0.909 +/- 0.023 on the third and fourth days, respectively. During infusion of energy-producing substrates the mean value of the respiratory coefficient reduced significantly (p < 0.001). It was 0.702 +/- 0.005 on the 60 th minute of the first day, 0.726 +/- 0.004 on the second day, and then increased to 0.761 +/- 0.009 and 0.778 +/- 0.01 on the third and fifth days, respectively. Before infusion of the substrates, the relative amounts of energy produced due to oxidation of fast and glucose were, respectively. 54.6% and 45.4% on the first day after operation. Later the share of fat decreased and that of glucose increased to 31.1% and 68.9%, respectively by the fifth day. During infusion of the substrates the relative amount of energy obtained at the expense of fat grew to 100% on the 60th minute of the first day and was 93.5% on the second day, the amount of glucose was 6.5%. The respective figures were 81.6% and 18.4% on the third day and 75.8% and 24.2% on the fifth day.(ABSTRACT TRUNCATED AT 250 WORDS)
Shtatnov
M K
MK
Mulagin
A E
AE
Ostreĭkov
I F
IF
D000293:Adolescent; D002245:Carbon Dioxide / Q000502:physiology*; D002648:Child; D002675:Child, Preschool; D004041:Dietary Fats / Q000008:administration & dosage*; D004734:Energy Metabolism / Q000502:physiology; D005947:Glucose / Q000008:administration & dosage*; D006801:Humans; D007223:Infant; D010101:Oxygen Consumption / Q000502:physiology*; D011182:Postoperative Care; D013997:Time Factors
D004041:Dietary Fats; D002245:Carbon Dioxide; D005947:Glucose
Izmeneniia dykhatel'nogo koéffitsienta pri vnutrivennom vvedenii énergeticheskikh substratov v rannem posleoperatsionnom periode u deteĭ.