Abstract
Physiologic replacement of insulin in patients with type 1 (insulin-dependent) diabetes following pancreas allograft transplantation results in normoglycaemia during fasting and postprandial states. However, this is achieved at the expense of peripheral hyperinsulinaemia in the heterotopic pancreas allograft recipients with systemic insulin drainage. In addition, the pancreas allograft is denervated and thus devoid of autonomic nervous regulation of pancreatic beta-cell secretion. Recent reports of hypoglycaemia (symptomatic and asymptomatic), which can be fatal, have raised serious concerns regarding the aetiology of the hypoglycaemic epiphenomenon in type 1 diabetic pancreas allograft recipients. Although the prevalence of significant hypoglycaemia following pancreas transplantation remains unknown, it is important to conduct studies to determine the mechanisms, the natural history, predictors and treatment as well as the long-term prognosis (graft and patient survival rates) of type 1 diabetic patients who develop pancreas-allograft-associated hypoglycaemia. Indeed, predictors of hypoglycaemia following pancreas allograft could significantly impact on the selection of appropriate therapeutic options for pancreas allograft transplantation. Finally, whether postpancreas allograft transplantation-associated hypoglycaemia in type 1 diabetic patients carries greater morbidity and mortality when compared to those without hypoglycaemia deserves to be investigated.
Published Version
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