Developing technologies in real-time continuous glucose monitoring (CGM) are successfully reducing severe hypoglycemia (SH) in trials and clinical practice. Their impact on impaired awareness of hypoglycemia, a major risk factor for SH, is uncertain. The present study examined two scales for assessing hypoglycemia awareness status, the Gold score and the eight-item Minimally Modified Clarke Hypoglycemia Survey (MMCHS), commonly used in trials of CGM, in Portuguese-speaking adults with type 1 diabetes and conducted an exploratory factor analysis on MMCHS. A bifactorial structure in MMCHS was revealed, with a clear distinction between items that measure SH experience and those that measure hypoglycemia awareness status. The latter is associated with the same risk for SH as the Gold score. We conclude that improvement in awareness scores by the MMCHS may reflect only a reduction in SH with no restoration of endogenous awareness, making the current literature consistent in evidence that CGM does not improve endogenous awareness and nonsensor supported protection from SH. This has implications for risk of SH when CGM is not being worn.
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http://dx.doi.org/10.1089/dia.2020.0034 | DOI Listing |
Diabetes Care
January 2025
Allam Diabetes Centre, Hull University Teaching Hospitals National Health Service (NHS) Trust, Hull, U.K.
Objective: This study aimed to explore the relationship between time below range (TBR), impaired awareness of hypoglycemia (IAH), and severe hypoglycemia (SH).
Research Design And Methods: This cross-sectional study analyzed data from individuals with diabetes using continuous glucose monitors (CGMs) in the Association of British Clinical Diabetologists audit. Hypoglycemia awareness was assessed via the Gold score (≥4 denoting IAH), and SH was defined as hypoglycemia requiring third-party assistance.
Clin Endocrinol (Oxf)
December 2024
Department of Diabetes and Endocrinology, Cambridge Cancer Centre and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
The management of hypoglycaemia is pivotal in the care of patients with insulinoma. Blood glucose monitoring and regulation needs careful attention pre- and peri-operatively for patients undergoing surgical resection and as part of the long-term management for patients with inoperable or metastatic disease. Hypoglycaemia symptoms are frequently pervasive and disabling, with many patients showing impaired hypoglycaemia awareness that can lead to life-threatening severe hypoglycaemia.
View Article and Find Full Text PDFNeuro Endocrinol Lett
December 2024
Department of Internal Medicine, Tokyo Saiseikai Central Hospital, Minato-ku, Tokyo, Japan.
A 33-year-old Japanese man with a history of atopic dermatitis and asthma had never been diagnosed with any apparent glucose intolerance but had been aware of palpitations for >10 years. A 75g oral glucose tolerance test (OGTT) at his physical examination in March 2021 revealed fasting hyperglycemia and post-load hypoglycemia. An OGTT recheck was performed in May 2021 and was normal.
View Article and Find Full Text PDFPilot Feasibility Stud
December 2024
Sheffield Centre for Health and Related Research, University of Sheffield, Sheffield, UK.
Background: There is a lack of practical guidance about how to effectively mobilise knowledge at the pre-trial stage. Despite increased guidance on developing complex interventions in recent years, much of this focuses on the theory and principles behind high-quality intervention development, rather than the practical aspects of how this should be achieved. This paper shares the findings from an embedded, qualitative evaluation of the Collaborative Working Group (CWG) process, a structured approach we developed to iteratively refine a complex intervention prior to a randomised controlled trial.
View Article and Find Full Text PDFEndocrinol Diabetes Metab
January 2025
Endocrinology and Nutrition Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
Context: Retinal microperimetry (MPR) is a non-invasive method that measures retinal light sensitivity (RS) and gaze fixation stability (GFS). MPR has been described as a marker of cognitive impairment in people with Type 2 diabetes, but it has never been assessed in people with Type 1 diabetes (T1D). Our group described subclinical cognitive alterations, structural brain differences, and increased levels of light chain neurofilament (NfL) in people with T1D and impaired awareness of hypoglycaemia.
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