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Validation of Igls Criteria for Islet Transplant Functional Status Using Person-Reported Outcome Measures in a Cross-Sectional Study

Lookup NU author(s): Dr Zoe Bond, Ayat Bashir, Dr Rachel Stocker, Professor James Shaw

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

Copyright © 2023 Bond, Malik, Bashir, Stocker, Buckingham, Speight and Shaw.Associations between islet graft function and well-being in islet transplant recipients requiring exogenous insulin remain unclear. This cross-sectional analysis compared person-reported outcome measures in 15 adults with type 1 diabetes whose islet transplants were classified according to Igls criteria as “Good” (n = 5), “Marginal” (n = 4) and “Failed” (n = 6) graft function. At a mean of 6.2 years post-first islet transplant, 90% reduction in severe hypoglycaemia was maintained in all groups, with HbA1c (mean ± SD mmol/mol) 49 ± 4 in recipients with “Good” function; 56 ± 5 (“Marginal”); and 69 ± 25 (“Failed”). Self-reported impaired awareness of hypoglycaemia persisted in all groups but those with “Good” function were more likely to experience symptoms during hypoglycaemia. “Marginal” function was associated with greater fear of hypoglycaemia (HFS-II score: “Marginal”: 113 [95, 119]; “Failed”: 63 [42, 93] (p = 0.082); “Good”: 33 [29, 61]) and severe anxiety (GAD7: “Marginal”): 21 [17, 21]; “Failed”: 6 [6, 6] “Good”: 6 [3, 11]; (p = 0.079)), diabetes distress and low mood. Despite clear evidence of ongoing clinical benefit, Igls criteria ‘Marginal’ function is associated with sub-optimal well-being, including greater fear of hypoglycaemia and severe anxiety. This study provides person-reported validation that “Good” and “Marginal” graft function are differentiated by general and diabetes-specific subjective well-being, suggesting those with “Marginal” function may benefit from further intervention, including re-transplantation.


Publication metadata

Author(s): Bond Z, Malik S, Bashir A, Stocker R, Buckingham J, Speight J, Shaw JAM

Publication type: Article

Publication status: Published

Journal: Transplant International

Year: 2023

Volume: 36

Online publication date: 26/09/2023

Acceptance date: 07/09/2023

Date deposited: 02/11/2023

ISSN (print): 0934-0874

ISSN (electronic): 1432-2277

Publisher: European Society for Organ Transplantation

URL: https://doi.org/10.3389/ti.2023.11659

DOI: 10.3389/ti.2023.11659

Data Access Statement: The original contributions presented in the study are included in the article/Supplementary Material, further inquiries can be directed to the corresponding author.

PubMed id: 37822448


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Funding

Funder referenceFunder name
107499
BDA 06/0003362
Biomedical and Psychosocial Outcomes of Islet Transplantation
Diabetes UK
Establishing UK Treatment Centres for Advanced Therapies
Innovate UK, UK Research and Innovation

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