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Post-transplant diabetes mellitus: risk reduction strategies in the elderly.

Abstract
New-onset diabetes mellitus in a previously non-diabetic transplant recipient is a serious adverse event that confers significant morbidity and mortality. The most significant consequences of post-transplant diabetes mellitus (PTDM) in solid organ transplant recipients include decreased patient and graft survival, an increased risk of infectious complications, and morbid cardiovascular events. The development of PTDM in the elderly is of particular concern because this group is already at increased risk of progression of cardiovascular disease. Because the elderly, especially those aged >65 years, are the fastest-growing segment of the renal transplant population, attention needs to be given to PTDM risk reduction and post-transplant management. PTDM develops as a consequence of both impaired insulin production and enhanced peripheral insulin resistance. A number of non-modifiable factors such as age, race, family history, hepatitis C, polycystic kidney disease and emerging genetic causes have been identified as risk factors for PTDM. However, a number of modifiable factors can be targets for intervention in high-risk patients, including bodyweight (through dietary restriction and exercise), hypertension, hyperlipidaemia and the effects of certain immunosuppressive agents. The two agents most responsible for PTDM are tacrolimus and corticosteroids, especially when used in combination. Attempts to modify doses and regimens designed to eliminate or avoid these drugs should be considered. Use of HMG-CoA reductase inhibitors ('statins') and ACE inhibitors is particularly helpful in controlling hypertension and hyperlipidaemia in the elderly because these agents confer protection against future adverse cardiovascular events. Bisphosphonates are also advantageous in controlling the progression of osteoporosis and possible increased risk of bone fractures. Future trials in the elderly should focus on such endpoints as PTDM, post-transplant neoplasia, cardiovascular events and bone fracture events in order to identify the safest regimens that provide the optimal control of rejection while limiting the morbidity from these secondary events.
AuthorsAlain Duclos, Lawrence M Flechner, Charles Faiman, Stuart M Flechner
JournalDrugs & aging (Drugs Aging) Vol. 23 Issue 10 Pg. 781-93 ( 2006) ISSN: 1170-229X [Print] New Zealand
PMID17067182 (Publication Type: Journal Article, Review)
Chemical References
  • Immunosuppressive Agents
Topics
  • Aged
  • Aged, 80 and over
  • Diabetes Mellitus, Type 2 (etiology, physiopathology, therapy)
  • Humans
  • Hyperglycemia (drug therapy, physiopathology)
  • Immunosuppressive Agents (adverse effects, therapeutic use)
  • Organ Transplantation (adverse effects)
  • Risk Factors
  • Risk Reduction Behavior

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