Transplantation · 2002
Carotid intima media thickness decreases after pancreas transplantation.
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Larsen Jennifer L, Ratanasuwan Tanaporn, Burkman Tab, Lynch Thomas, Erickson Judi, Colling Christopher, Lane James, Mack-Shipman Lynn, Lyden Elizabeth, Loseke Melissa, Miller Suzanne, Leone John
Аннотация
BACKGROUND: Pancreas transplantation (PTX) improves diabetic microvascular complications, but it is unknown whether PTX alters macrovascular disease. Carotid intima media thickness (IMT) has been shown to correlate with cardiovascular events, so this study was designed to evaluate changes in carotid IMT after PTX.
METHODS: Four groups were studied: PTX candidates (n=60); successful PTX recipients (n=89; mean time since PTX=4.0+/-0.3 years); patients with type 1 diabetes but without nephropathy (n=20); and normal controls (n=32). Mean IMT and mean of maximum carotid IMT measurements (mean-max IMT), hemoglobin A1C, serum creatinine, body mass index (BMI), blood pressure, smoking status, use of hypolipidemic medications, and fasting lipids were determined in all groups.
RESULTS: Age, gender distribution, and BMI were not different among the groups. Duration of diabetes was also equal between pre- and post-PTX groups. Mean and mean-max IMT were greatest pre-PTX and decreased after PTX (P<0.05) to a value that was not different from controls. Hemoglobin A1C and creatinine decreased, and high density lipoprotein (HDL) increased after PTX (P<0.05), but there were no significant differences in other lipids, BMI, use of lipid lowering agents, blood pressure, or smoking status.
CONCLUSIONS: Carotid IMT is lower after PTX, suggesting a reduction in overall cardiovascular risk independent of changes in use of hypolipidemic agents, smoking, blood pressure, BMI, or lipids, except HDL. Improved carotid IMT after successful PTX predicts a reduction in future vascular disease events and suggests that the macrovascular disease of type 1 diabetes is at least partially reversible with improved glucose control.
METHODS: Four groups were studied: PTX candidates (n=60); successful PTX recipients (n=89; mean time since PTX=4.0+/-0.3 years); patients with type 1 diabetes but without nephropathy (n=20); and normal controls (n=32). Mean IMT and mean of maximum carotid IMT measurements (mean-max IMT), hemoglobin A1C, serum creatinine, body mass index (BMI), blood pressure, smoking status, use of hypolipidemic medications, and fasting lipids were determined in all groups.
RESULTS: Age, gender distribution, and BMI were not different among the groups. Duration of diabetes was also equal between pre- and post-PTX groups. Mean and mean-max IMT were greatest pre-PTX and decreased after PTX (P<0.05) to a value that was not different from controls. Hemoglobin A1C and creatinine decreased, and high density lipoprotein (HDL) increased after PTX (P<0.05), but there were no significant differences in other lipids, BMI, use of lipid lowering agents, blood pressure, or smoking status.
CONCLUSIONS: Carotid IMT is lower after PTX, suggesting a reduction in overall cardiovascular risk independent of changes in use of hypolipidemic agents, smoking, blood pressure, BMI, or lipids, except HDL. Improved carotid IMT after successful PTX predicts a reduction in future vascular disease events and suggests that the macrovascular disease of type 1 diabetes is at least partially reversible with improved glucose control.