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Diabetes Technol Ther. 2011 Feb;13(2):121-6. doi: 10.1089/dia.2010.0124.

Conversion from intravenous insulin to subcutaneous insulin after cardiovascular surgery: transition to target study.

Author information

1
Department of Medicine, Union Memorial Hospital, Baltimore, Maryland 21218, USA. mansur.shomali@medstar.net

Abstract

BACKGROUND:

No study of transition from intravenous to subcutaneous insulin after cardiac surgery with dose based on percentage of intravenous total daily insulin (TDI) has reported a clearly superior regimen for achieving target blood glucose. We compared three first-dose transition strategies for insulin glargine: two based on TDI alone and one that also took body weight into account.

METHODS:

Mostly obese, type 1 and type 2 diabetes patients (n = 223) undergoing cardiac surgery were randomized to receive insulin glargine subcutaneously at 60% or 80% of TDI or in a dose based on TDI and body weight.

RESULTS:

Transition to subcutaneous insulin occurred 27.4 ± 6.6 h after surgery. Over the study period, mean proportion of blood glucose values within target range (80-140 mg/dL) were 0.34 ± 0.24, 0.35 ± 0.24, and 0.36 ± 0.22 in the 60% TDI, 80% TDI, and weight-based groups, respectively. This difference was not significant. Significantly more insulin corrections were needed in the 60% TDI group than in the weight-based group. There was only one incidence of hypoglycemia (blood glucose < 40 mg/dL).

CONCLUSIONS:

No subcutaneous insulin regimen implemented approximately 1 day after cardiac surgery showed significantly better control of blood glucose over the 3-day study period. Further studies are needed to determine optimal formulae for effecting an early transition to subcutaneous insulin after cardiac surgery or whether it is preferable and/or necessary to continue intravenous insulin therapy for an additional period of time.

PMID:
21284478
DOI:
10.1089/dia.2010.0124
[Indexed for MEDLINE]

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