Chronic Somogyi rebound

The Somogyi effect (English Somogyi phenomena ), also rebound hyperglycemia or hyperglycemia posthypoglykämische called, is a dysregulation occurring in diabetics blood sugar levels. Due to excessive counter-regulation, mainly through the secretion of glucagon and stress hormones (epinephrine, cortisol) it comes after a hypo to excessive blood sugar levels.

Typical is a high reading in the morning, after an overnight ( undetected ) hypoglycemia. If the effect is not taken into account, the diabetic could further increase the insulin dose, although it is actually already too high.

In practice, real rebound hyperglycaemia are rare. Much more often, the high fasting blood sugar is the result of a genuine lack of insulin in the early morning ( 4-8 clock ) because the evening sprayed insulin is reduced and simultaneously reduced by the morning's release of growth hormone 's effect (so-called dawn phenomenon ).

Named is the effect after its describer, a native of Hungary, U.S. biochemist Michael Somogyi ( 1883-1971 ).