What question did this study set out to answer?

To noninvasively evaluate whether successful simultaneous pancreas-kidney transplantation can reverse diabetic microangiopathy in the conjunctival microcirculation of individuals with type 1 diabetes.

October 1, 1999Transplantation

Improvements in Diabetic Microangiopathy After Successful Simultaneous Pancreas-Kidney Transplantation: A Computer-Assisted Intravital Microscopy Study on the Conjunctival Microcirculation1,2

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Authors

ACAnthony CheungGuy's Hospital RPRichard V. PerezUC Davis Health System PCPeter C. Y. ChenNational University of Singapore

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Implication

Prospective study demonstrates significant microvascular recovery in type-1 diabetes after pancreas-kidney transplantation, indicating glycemic normalization reverses diabetic microangiopathy.

Key Points

To noninvasively evaluate whether successful simultaneous pancreas-kidney transplantation can reverse diabetic microangiopathy in the conjunctival microcirculation of individuals with type 1 diabetes.
Assessed conjunctival microvasculature preoperatively and 18 months postoperatively using computer-assisted intravital microscopy in 12 type 1 diabetic recipients of simultaneous pancreas-kidney (SPK) transplants.
Evaluated three control groups for comparison: 12 healthy non-diabetic volunteers, 5 solitary kidney transplant recipients with type 1 diabetes, and 12 non-transplanted type 1 diabetic patients.
Recipients 18 months post-SPK demonstrated significant structural improvements from baseline: venular diameter decreased from 66±7 µm to 58±6 µm (healthy controls: 53±4 µm), arteriole length-to-area density rose from 18±6 µm⁻¹ to 26±9 µm⁻¹ (controls: 31±8 µm⁻¹), and perfusion capacity climbed from 49±9% to 63±8% (controls: 71±6%; all P<0.05).
Blood flow velocities improved non-significantly after SPK (pre-SPK: 1.23±0.49 mm/sec vs post-SPK: 1.65±0.42 mm/sec; healthy controls: 2.94±0.57 mm/sec), whereas solitary kidney transplant controls exhibited no microvascular improvements.

Cite This Study

Cheung et al. (1999) studied this question.

synapsesocial.com/papers/6a6febd626770c2b8de03bab https://doi.org/10.1097/00007890-199910150-00005

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Implication

Prospective study demonstrates significant microvascular recovery in type-1 diabetes after pancreas-kidney transplantation, indicating glycemic normalization reverses diabetic microangiopathy.

Improvements in Diabetic Microangiopathy After Successful Simultaneous Pancreas-Kidney Transplantation: A Computer-Assisted Intravital Microscopy Study on the Conjunctival Microcirculation1,2

Discussion

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Implication

Key Points

Cite This Study

Improvements in Diabetic Microangiopathy After Successful Simultaneous Pancreas-Kidney Transplantation: A Computer-Assisted Intravital Microscopy Study on the Conjunctival Microcirculation1,2

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