[Injection site for quick-acting insulin. Significance for glycemic control in basal bolus insulin regimen].

The impact on glycaemic control of soluble insulin injected either intramuscularly into the thigh (IMT), subcutaneously into the abdominal wall (SCA) or subcutaneously into the thigh (SCT) was evaluated in 49 Type 1 diabetic outpatients following a randomised three-month intervention study. Insulin doses were adjusted based on patients' self-monitored blood glucose values and reported hypoglycaemic episodes. More patients in the SCA and IMT groups than in the SCT group had serum fructosamine values within normal limits following intervention. Blood glucose at 03.00 was lower in the SCT group than in the SCA and IMT groups, due to a higher number of low nocturnal blood glucose values (less than 4 mmol/l) in the SCT group. In conclusion, s.c. injection of soluble insulin into the abdominal wall or intramuscularly into the thigh is preferable compared to s.c. injection into the thigh in the basal bolus insulin delivery regimen. Soluble insulin injection s.c. into the thigh during daytime is a risk factor for nocturnal hypoglycaemia.