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Sobhani NC, Han CS, Sarker MR, Shah S, Ramos GA. Use of a Commercially Available Automated Insulin Delivery System for the Management of Type 1 Diabetes in Pregnancy. J Diabetes Sci Technol 2024:19322968241279569. [PMID: 39254102 DOI: 10.1177/19322968241279569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Affiliation(s)
- Nasim C Sobhani
- Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology, & Reproductive Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Christina S Han
- Division of Maternal Fetal Medicine, Department of Obstetrics & Gynecology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Minhazur R Sarker
- Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology, & Reproductive Sciences, University of California, San Diego, La Jolla, CA, USA
| | - Sohum Shah
- Division of Maternal Fetal Medicine, Department of Obstetrics & Gynecology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Gladys A Ramos
- Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology, & Reproductive Sciences, University of California, San Diego, La Jolla, CA, USA
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2
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McLean A, Maple-Brown L, Murphy HR. Technology advances in diabetes pregnancy: right technology, right person, right time. Diabetologia 2024:10.1007/s00125-024-06216-2. [PMID: 38967667 DOI: 10.1007/s00125-024-06216-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/20/2024] [Indexed: 07/06/2024]
Abstract
This review outlines some of the extraordinary recent advances in diabetes technology, which are transforming the management of type 1 diabetes before, during and after pregnancy. It highlights recent improvements associated with use of continuous glucose monitoring (CGM) but acknowledges that neither CGM nor insulin pump therapy are adequate for achieving the pregnancy glucose targets. Furthermore, even hybrid closed-loop (HCL) systems that are clinically effective outside of pregnancy may not confer additional benefits throughout pregnancy. To date, there is only one HCL system, the CamAPS FX, with a strong evidence base for use during pregnancy, suggesting that the pregnancy benefits are HCL system specific. This is in stark contrast to HCL system use outside of pregnancy, where benefits are HCL category specific. The CamAPS FX HCL system has a rapidly adaptive algorithm and lower glucose targets with benefits across all maternal glucose categories, meaning that it is applicable for all women with type 1 diabetes, before and during pregnancy. For women of reproductive years living with type 2 diabetes, the relative merits of using non-insulin pharmacotherapies vs diabetes technology (dipeptidyl peptidase-4 inhibitors, glucagon-like peptide-1 receptor agonists and sodium-glucose cotransporter 2 inhibitors) are unknown. Despite the urgent unmet need and potential benefits, studies of pharmacotherapy and technology use are extremely limited in pregnant women with type 2 diabetes.
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Affiliation(s)
- Anna McLean
- Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia
- Endocrinology Department, Cairns Hospital, Cairns, Queensland, Australia
| | - Louise Maple-Brown
- Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia
- Endocrinology Department, Royal Darwin Hospital, Darwin, Northern Territory, Australia
| | - Helen R Murphy
- Norwich Medical School, University of East Anglia, Norwich, UK.
- Norfolk and Norwich NHS Foundation Trust, Diabetes and Antenatal Care, Norwich, UK.
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3
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Szmuilowicz ED, Barbour L, Brown FM, Durnwald C, Feig DS, O’Malley G, Polsky S, Aleppo G. Continuous Glucose Monitoring Metrics for Pregnancies Complicated by Diabetes: Critical Appraisal of Current Evidence. J Diabetes Sci Technol 2024; 18:819-834. [PMID: 38606830 PMCID: PMC11307229 DOI: 10.1177/19322968241239341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Ascertaining the utility of continuous glucose monitoring (CGM) in pregnancy complicated by diabetes is a rapidly evolving area, as the prevalence of type 1 diabetes (T1D), type 2 diabetes (T2D), and gestational diabetes mellitus (GDM) escalates. The seminal randomized controlled trial (RCT) evaluating CGM use added to standard care in pregnancy in T1D demonstrated significant improvements in maternal glycemia and neonatal health outcomes. Current clinical guidance recommends targets for percentage time in range (TIR), time above range (TAR), and time below range (TBR) during pregnancy complicated by T1D that are widely used in clinical practice. However, the superiority of CGM over blood glucose monitoring (BGM) is still questioned in both T2D and GDM, and whether glucose targets should be different than in T1D is unknown. Questions requiring additional research include which CGM metrics are superior in predicting clinical outcomes, how should pregnancy-specific CGM targets be defined, whether CGM targets should differ according to gestational age, and if CGM metrics during pregnancy should be similar across all types of diabetes. Limiting the potential for CGM to improve pregnancy outcomes may be our inability to maintain TIR > 70% throughout gestation, a goal achieved in the minority of patients studied. Adverse pregnancy outcomes remain high in women with T1D and T2D in pregnancy despite CGM technology, and this review explores the potential reasons and questions yet to be investigated.
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Affiliation(s)
| | - Linda Barbour
- University of Colorado Anschutz Medical
Campus, Aurora, CO, USA
| | | | | | | | | | - Sarit Polsky
- University of Colorado Anschutz Medical
Campus, Aurora, CO, USA
| | - Grazia Aleppo
- Northwestern University Feinberg School
of Medicine, Chicago, IL, USA
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4
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Englund Ögge L, Dotevall A, Elfvin A, Sandgren U, Linden K, Bohlin L, Wallstersson B, Sjödell M, Augustinsson J, Hagman A. Glycemic control assessed by continuous glucose monitoring during pregnancy in women with type 1 diabetes and its association with preeclampsia, an observational Swedish cohort study. Acta Obstet Gynecol Scand 2024; 103:1426-1436. [PMID: 38725185 PMCID: PMC11168267 DOI: 10.1111/aogs.14856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 06/13/2024]
Abstract
INTRODUCTION Women with type 1 diabetes have an increased risk of preeclampsia (PE), but it is not fully understood if degree of glycemic control is associated with this risk. The aim of this study was to assess glycemic control during pregnancy analyzed by continuous glucose monitoring (CGM) in women with and without PE and to investigate if glycemic control is associated with increased risk of PE. MATERIAL AND METHODS A total of 120 pregnant Swedish women with type 1 diabetes using CGM were included. Background factors and pregnancy outcomes were collected from medical records. CGM data were collected via the internet-based platform Diasend. Mean glucose, standard deviation of mean glucose, percentage of time in target, time below target, and time above target were presented for each trimester in women who did or did not develop PE. Associations between CGM-derived metrics and PE were analyzed with logistic regression and adjusted for confounders. RESULTS Twenty-two women (18.3%) developed PE. There were no significant differences in maternal characteristics between women with and without PE. Glycemic control improved in each trimester but was suboptimal in both groups. Time in target increased from 59% in the non-PE group and 54% in the PE group in the first trimester to 65% in both groups in the third trimester. There were no significant associations between glycemic control and PE after adjustment for confounders. CONCLUSIONS Degree of glycemic control during pregnancy assessed by CGM was not associated with development of PE in women with type 1 diabetes. However, more research is needed to understand the role of glycemic control in relation to development of PE.
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Affiliation(s)
- Linda Englund Ögge
- Department of Obstetrics and GynecologySahlgrenska University Hospital/ÖstraGothenburgSweden
- Department of Obstetrics and GynecologyInstitute of Clinical Sciences, University of GothenburgGothenburgSweden
| | - Annika Dotevall
- Department of MedicineSahlgrenska University Hospital/ÖstraGothenburgSweden
| | - Anders Elfvin
- Department of PediatricsInstitute of Clinical Sciences, Sahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Ulrika Sandgren
- Department of Obstetrics and GynecologySahlgrenska University Hospital/ÖstraGothenburgSweden
| | - Karolina Linden
- Institute of Health and Care Sciences, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Linnea Bohlin
- Regionhälsan Health Care, Gynecology and Obstetrics ClinicGothenburgSweden
| | - Bernadette Wallstersson
- Department of Obstetrics and GynecologySahlgrenska University Hospital/ÖstraGothenburgSweden
| | - Mårten Sjödell
- Department of Obstetrics and GynecologySkaraborg HospitalSkövdeSweden
| | - Jaine Augustinsson
- Regionhälsan Health Care, Gynecology and Obstetrics ClinicGothenburgSweden
| | - Anna Hagman
- Regionhälsan Health Care, Gynecology and Obstetrics ClinicGothenburgSweden
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5
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Jafar A, Pasqua MR. Postprandial glucose-management strategies in type 1 diabetes: Current approaches and prospects with precision medicine and artificial intelligence. Diabetes Obes Metab 2024; 26:1555-1566. [PMID: 38263540 DOI: 10.1111/dom.15463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/01/2024] [Accepted: 01/05/2024] [Indexed: 01/25/2024]
Abstract
Postprandial glucose control can be challenging for individuals with type 1 diabetes, and this can be attributed to many factors, including suboptimal therapy parameters (carbohydrate ratios, correction factors, basal doses) because of physiological changes, meal macronutrients and engagement in postprandial physical activity. This narrative review aims to examine the current postprandial glucose-management strategies tested in clinical trials, including adjusting therapy settings, bolusing for meal macronutrients, adjusting pre-exercise and postexercise meal boluses for postprandial physical activity, and other therapeutic options, for individuals on open-loop and closed-loop therapies. Then we discuss their challenges and future avenues. Despite advancements in insulin delivery devices such as closed-loop systems and decision-support systems, many individuals with type 1 diabetes still struggle to manage their glucose levels. The main challenge is the lack of personalized recommendations, causing suboptimal postprandial glucose control. We suggest that postprandial glucose control can be improved by (i) providing personalized recommendations for meal macronutrients and postprandial activity; (ii) including behavioural recommendations; (iii) using other personalized therapeutic approaches (e.g. glucagon-like peptide-1 receptor agonists, sodium-glucose co-transporter inhibitors, amylin analogues, inhaled insulin) in addition to insulin therapy; and (iv) integrating an interpretability report to explain to individuals about changes in treatment therapy and behavioural recommendations. In addition, we suggest a future avenue to implement precision recommendations for individuals with type 1 diabetes utilizing the potential of deep reinforcement learning and foundation models (such as GPT and BERT), employing different modalities of data including diabetes-related and external background factors (i.e. behavioural, environmental, biological and abnormal events).
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Affiliation(s)
- Adnan Jafar
- Department of Biomedical Engineering, McGill University, Montreal, Quebec, Canada
| | - Melissa-Rosina Pasqua
- Division of Endocrinology, Department of Medicine, McGill University, Montreal, Quebec, Canada
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6
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Murphy HR. A Diabetes Pregnancy Technology Roadmap: The 2023 Norbert Freinkel Award Lecture. Diabetes Care 2024; 47:324-330. [PMID: 38394634 DOI: 10.2337/dci23-0067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Norbert Freinkel emphasized the need for "more aggressive therapy with exogenous insulin" during type 1 diabetes (T1D) pregnancy. Recent advances in diabetes technology, continuous glucose monitoring (CGM), and hybrid closed-loop (HCL) insulin delivery systems allow us to revisit Freinkel's observations from a contemporary perspective. The Continuous Glucose Monitoring in Women With Type 1 Diabetes in Pregnancy Trial (CONCEPTT) led to international recommendations that CGM be offered to all pregnant women with T1D to help them meet their pregnancy glucose targets and improve neonatal outcomes. However, despite CGM use, only 35% of trial participants reached the pregnancy glucose targets by 35 weeks' gestation, which is too late for optimal obstetric and neonatal outcomes. The constant vigilance to CGM data and insulin dose adjustment, with perpetual worry about the impact of hyperglycemia on the developing fetal structures, leave many pregnant women feeling overwhelmed. HCL systems that can adapt to marked gestational changes in insulin sensitivity and pharmacokinetics may help to bridge the gap between the nonpregnant time in range glycemic targets (70-180 mg/dL) and the substantially more stringent pregnancy-specific targets (TIRp) (63-140 mg/dL) required for optimal obstetric and neonatal outcomes. Use of HCL (CamAPS FX system) was associated with a 10.5% higher TIRp, 10.2% less hyperglycemia, and 12.3% higher overnight TIRp. Clinical benefits were accompanied by 3.7 kg (8 lb) less gestational weight gain and consistently achieved across a representative patient population of insulin pump or injection users, across trial sites, and across maternal HbA1c categories. Working collaboratively, women, HCL technology, and health care teams achieved improved glycemia with less worry, less work, and more positive pregnancy experiences.
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Affiliation(s)
- Helen R Murphy
- Norwich Medical School, University of East Anglia, and Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, U.K
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7
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Pham DQ, Thorsell A, Castorino K, Cobb B. A review of CONCEPTT study findings including subanalyses in pregnant women using continuous glucose monitoring with type 1 diabetes and their offspring. Endocr Connect 2024; 13:e230407. [PMID: 38010170 PMCID: PMC10831538 DOI: 10.1530/ec-23-0407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/27/2023] [Indexed: 11/29/2023]
Abstract
The main objective of this article is to provide a comprehensive review of continuous glucose monitor (CGM) use in pregnant women with type 1 diabetes (T1D) from the CONCEPTT study including subanalyses. Literature search was accessed through MEDLINE (1966-September 2023) using the key terms: CONCEPTT, pregnancy, women, T1D, and CGM with limitations set to distinguish human subjects written in English. A total of 17 publications including one main clinical trial and 15 subanalyses have been published to date regarding the use of CGM in pregnant women with T1D which were conducted by a research group identified as the CONCEPTT Collaborative Group. While advances in maternal care have resulted in safer pregnancy for both the mother and child, women with preexisting T1D and pregnancy still experience higher rates of complications both in the short and long term. The use of CGM in pregnancy has not been studied extensively until more recently. The CONCEPTT clinical trial was a landmark study that involved several subanalyses. The main trial proved that CGM use in T1D pregnancy resulted in less hyperglycemia in the third trimester, reduced large for gestational age (LGA, >90th percentile), reduced neonatal intensive care unit admissions lasting longer than 24 h, and reduced neonatal hypoglycemia. Although subanalyses showed a variety of results including 'inconclusive' due to lack of prespecification, it is believed that CGM in T1D during pregnancy is to be recommended and used for overall improved outcomes.
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Affiliation(s)
- David Q Pham
- Western University of Health Sciences, College of Pharmacy, Pomona, California, USA
- Mary & Dick Allen Diabetes Center at Hoag Hospital, Newport Beach, California, USA
| | - Ashley Thorsell
- Sansum Diabetes Research Institute, Santa Barbara, California, USA
| | | | - Brandon Cobb
- Sansum Diabetes Research Institute, Santa Barbara, California, USA
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8
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Sobhani NC, Goemans S, Nguyen A, Chambers ME, Richley M, Gabby LC, Field N, Han CS, Ramos GA. Continuous glucose monitoring in pregnancies with type 1 diabetes: small increases in time-in-range improve maternal and perinatal outcomes. Am J Obstet Gynecol 2024:S0002-9378(24)00024-3. [PMID: 38242337 DOI: 10.1016/j.ajog.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/05/2024] [Accepted: 01/10/2024] [Indexed: 01/21/2024]
Abstract
BACKGROUND Continuous glucose monitors provide detailed information regarding glycemic control in pregnant patients with type 1 diabetes. Little data have been published examining the association between continuous glucose monitor parameters and perinatal outcomes among gravidas with type 1 diabetes using continuous glucose monitors. OBJECTIVE This study aimed to examine the association between perinatal outcomes and time-in-range as assessed by continuous glucose monitors used in pregnant individuals with type 1 diabetes. We hypothesized that higher time-in-range would be associated with lower risk of adverse perinatal outcomes. STUDY DESIGN This multicenter retrospective cohort study included all gravidas with type 1 diabetes using continuous glucose monitors who delivered from 2020 to 2022 at 5 University of California sites. Only those with continuous glucose monitor target range set to 70 to 140 mg/dL (±10 mg/dL) were included. Time-in-range (%) was recorded at 12, 16, 20, 24, 28, and 32 weeks. The primary maternal and neonatal outcomes were preeclampsia and large for gestational age, defined as birthweight ≥95th percentile. Kruskal-Wallis tests were used to compare median time-in-range between those with and without the primary outcomes. Log-binomial regression was used to obtain risk ratios, with adjustment for microvascular disease and years with type 1 diabetes. RESULTS A total of 91 patients were included. Most used an insulin pump (81%) and did not have diabetic microvascular disease (72%). Median time since diagnosis of type 1 diabetes was 16 years, and median periconception hemoglobin A1c was 6.7%. Compared with those with preeclampsia, normotensive gravidas had significantly higher time-in-range at nearly every time point. A similar pattern was observed for those with normal-birthweight infants compared with large-for-gestational-age infants. On adjusted analyses, every 5-unit increase in time-in-range at 12 weeks was associated with 45% and 46% reductions in the risks of preeclampsia and large for gestational age, respectively (preeclampsia: adjusted risk ratio, 0.55; 95% confidence interval, 0.30-0.99; large for gestational age: adjusted risk ratio, 0.54; 95% confidence interval, 0.29-0.99). CONCLUSION Higher time-in-range is associated with lower risk of preeclampsia and large for gestational age. This association is observed early in gestation, when each 5-unit increase in time-in-range is associated with ∼50% reduction in the risk of these complications. These findings can be used to counsel patients regarding the risk of pregnancy complications at specific time-in-range values, and to encourage patients that even small improvements in time-in-range can have significant impact on pregnancy outcomes. Larger studies are needed to further explore these findings and to identify optimal time-in-range to reduce perinatal complication rates.
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Affiliation(s)
- Nasim C Sobhani
- Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Francisco, San Francisco, CA.
| | - Sophie Goemans
- Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Diego, San Diego, CA
| | - Antoinette Nguyen
- School of Medicine & Dentistry, University of Rochester, Rochester, NY
| | - Melissa E Chambers
- Division of Maternal Fetal Medicine, Department of Obstetrics & Gynecology, University of California Irvine, Irvine, CA
| | - Michael Richley
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of California Los Angeles, Los Angeles, CA
| | - Lauryn C Gabby
- Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Diego, San Diego, CA
| | - Nancy Field
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of California Davis, Davis, CA
| | - Christina S Han
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of California Los Angeles, Los Angeles, CA
| | - Gladys A Ramos
- Division of Maternal Fetal Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California San Diego, San Diego, CA
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9
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Benhalima K, Jendle J, Beunen K, Ringholm L. Automated Insulin Delivery for Pregnant Women With Type 1 Diabetes: Where do we stand? J Diabetes Sci Technol 2024:19322968231223934. [PMID: 38197363 DOI: 10.1177/19322968231223934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Automated insulin delivery (AID) systems mimic an artificial pancreas via a predictive algorithm integrated with continuous glucose monitoring (CGM) and an insulin pump, thereby providing AID. Outside of pregnancy, AID has led to a paradigm shift in the management of people with type 1 diabetes (T1D), leading to improvements in glycemic control with lower risk for hypoglycemia and improved quality of life. As the use of AID in clinical practice is increasing, the number of women of reproductive age becoming pregnant while using AID is also expected to increase. The requirement for lower glucose targets than outside of pregnancy and for frequent adjustments of insulin doses during pregnancy may impact the effectiveness and safety of AID when using algorithms for non-pregnant populations with T1D. Currently, the CamAPS® FX is the only AID approved for use in pregnancy. A recent randomized controlled trial (RCT) with CamAPS® FX demonstrated a 10% increase in time in range in a pregnant population with T1D and a baseline glycated hemoglobin (HbA1c) ≥ 48 mmol/mol (6.5%). Off-label use of AID not approved for pregnancy are currently also being evaluated in ongoing RCTs. More evidence is needed on the impact of AID on maternal and neonatal outcomes. We review the current evidence on the use of AID in pregnancy and provide an overview of the completed and ongoing RCTs evaluating AID in pregnancy. In addition, we discuss the advantages and challenges of the use of current AID in pregnancy and future directions for research.
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Affiliation(s)
- Katrien Benhalima
- Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Leuven, Belgium
| | - Johan Jendle
- Diabetes Endocrinology and Metabolism Research Centre, School of Medicine, Örebro University, Örebro, Sweden
| | - Kaat Beunen
- Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Leuven, Belgium
| | - Lene Ringholm
- Center for Pregnant Women with Diabetes, Department of Endocrinology and Metabolism, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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10
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Feig DS, Scott EM. Optimizing Patient Outcomes in Pregnancy: What Continuous Glucose Monitoring Metrics Should We Be Aiming For? Diabetes Care 2024; 47:54-55. [PMID: 38117998 DOI: 10.2337/dci23-0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 09/30/2023] [Indexed: 12/22/2023]
Affiliation(s)
- Denice S Feig
- Department of Medicine, University of Toronto, Sinai Health System, Mount Sinai Hospital, Toronto, Canada
| | - Eleanor M Scott
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, U.K
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McLean A, Barr E, Tabuai G, Murphy HR, Maple-Brown L. Continuous Glucose Monitoring Metrics in High-Risk Pregnant Women with Type 2 Diabetes. Diabetes Technol Ther 2023; 25:836-844. [PMID: 37902969 DOI: 10.1089/dia.2023.0300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Objective: To describe glucose metrics in a high-risk population of women with type 2 diabetes (T2DM) in pregnancy and to explore the associations with neonatal outcomes. Research Design and Methods: Prospective observational study of 57 women. Continuous glucose monitoring (CGM) trajectories were determined from metrics collected in early and late gestation using the first and last two (mean 16 and 35) weeks of Freestyle Libre data. Logistic regression was used to examine associations of CGM metrics with neonatal hypoglycemia (glucose <2.6 mmol/L requiring intravenous dextrose) and large for gestational age (LGA) (>90th percentile for gestational age and sex). Pregnancy-specific target glucose range was 3.5-7.8 mmol/L (63-140 mg/dL). Results: Forty-one women used CGM for 15 weeks (mean age 33 years, 73% Aboriginal or Torres Strait Islander, 32% living remotely). There was limited change in average metrics from early to late pregnancy. For the subgroup with sensor use >50% (n = 29), mean time in range (TIR) increased by 9%, time above range reduced by 12%, average glucose reduced by 1 mmol/L, and time below range increased by 3%. Neonatal hypoglycemia was associated with most CGM metrics, HbA1c and CGM targets, particularly those from late pregnancy. LGA was associated with hyperglycemic metrics from early pregnancy. Each 1% increase TIR was associated with a 4%-5% reduction in risk of neonatal complications. Conclusion: In this high-risk group of women with T2DM, CGM metrics only improved during pregnancy in those with greater sensor use and were associated with LGA in early pregnancy and neonatal hypoglycemia throughout. Culturally appropriate health care strategies are critical for successful use of CGM technology.
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Affiliation(s)
- Anna McLean
- Wellbeing and Preventable Chronic Disease Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
- Endocrinology Department, Cairns Hospital, Cairns, Australia
| | - Elizabeth Barr
- Wellbeing and Preventable Chronic Disease Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Georgina Tabuai
- Endocrinology Department, Cairns Hospital, Cairns, Australia
| | - Helen R Murphy
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - Louise Maple-Brown
- Wellbeing and Preventable Chronic Disease Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
- Endocrinology Department, Royal Darwin Hospital, Darwin, Australia
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Lawton J, Kimbell B, Closs M, Hartnell S, Lee TTM, Dover AR, Reynolds RM, Collett C, Barnard-Kelly K, Hovorka R, Rankin D, Murphy HR. Listening to Women: Experiences of Using Closed-Loop in Type 1 Diabetes Pregnancy. Diabetes Technol Ther 2023; 25:845-855. [PMID: 37795883 DOI: 10.1089/dia.2023.0323] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Introduction: Recent high-profile calls have emphasized that women's experiences should be considered in maternity care provisioning. We explored women's experiences of using closed-loop during type 1 diabetes (T1D) pregnancy to inform decision-making about antenatal rollout and guidance and support given to future users. Methods: We interviewed 23 closed-loop participants in the Automated insulin Delivery Among Pregnant women with T1D (AiDAPT) trial after randomization to closed-loop and ∼20 weeks later. Data were analyzed thematically. Results: Women described how closed-loop lessened the physical and mental demands of diabetes management, enabling them to feel more normal and sleep better. By virtue of spending increased time-in-range, women also worried less about risks to their baby and being judged negatively by health care professionals. Most noted that intensive input and support during early pregnancy had been crucial to adjusting to, and developing confidence in, the technology. Women emphasized that attaining pregnancy glucose targets still required ongoing effort from themselves and the health care team. Women described needing education to help them determine when, and how, to intervene and when to allow the closed-loop to operate without interference. All women reported more enjoyable pregnancy experiences as a result of using closed-loop; some also noted being able to remain longer in paid employment. Conclusions: Study findings endorse closed-loop use in T1D pregnancy by highlighting how the technology can facilitate positive pregnancy experiences. To realize fully the benefits of closed-loop, pregnant women would benefit from initial intensive oversight and support together with closed-loop specific education and training. Clinical Trial Registration number: NCT04938557.
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Affiliation(s)
- Julia Lawton
- Usher Institute, Medical School, University of Edinburgh, Edinburgh, United Kingdom
| | - Barbara Kimbell
- Usher Institute, Medical School, University of Edinburgh, Edinburgh, United Kingdom
| | - Mia Closs
- Usher Institute, Medical School, University of Edinburgh, Edinburgh, United Kingdom
| | - Sara Hartnell
- Cambridge University Hospitals NHS Foundation Trust, Wolfson Diabetes and Endocrine Clinic, Cambridge, United Kingdom
| | - Tara T M Lee
- Norwich Medical School, Floor 2, Bob Champion Research and Education Building, James Watson Road, University of East Anglia, Norwich Research Park, Norwich, United Kingdom
- Norfolk & Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Anna R Dover
- Edinburgh Centre for Endocrinology and Diabetes, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
| | - Rebecca M Reynolds
- Edinburgh Centre for Endocrinology and Diabetes, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
- Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Corinne Collett
- Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | | | - Roman Hovorka
- Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, United Kingdom
- Department of Paediatrics, University of Cambridge, Cambridge, United Kingdom
| | - David Rankin
- Usher Institute, Medical School, University of Edinburgh, Edinburgh, United Kingdom
| | - Helen R Murphy
- Cambridge University Hospitals NHS Foundation Trust, Wolfson Diabetes and Endocrine Clinic, Cambridge, United Kingdom
- Norwich Medical School, Floor 2, Bob Champion Research and Education Building, James Watson Road, University of East Anglia, Norwich Research Park, Norwich, United Kingdom
- Norfolk & Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
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Bergenstal RM. Roadmap to the Effective Use of Continuous Glucose Monitoring: Innovation, Investigation, and Implementation. Diabetes Spectr 2023; 36:327-336. [PMID: 37982061 PMCID: PMC10654130 DOI: 10.2337/dsi23-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
For 25 years, continuous glucose monitoring (CGM) has been evolving into what it is now: a key tool to both measure individuals' glycemic status and to help guide their day-to-day management of diabetes. Through a series of engineering innovations, clinical investigations, and efforts to optimize workflow implementation, the use of CGM is helping to transform diabetes care. This article presents a roadmap to the effective use of CGM that outlines past, present, and possible future advances in harnessing the potential of CGM to improve the lives of many people with diabetes, with an emphasis on ensuring that CGM technology is available to all who could benefit from its use.
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Lee TTM, Collett C, Bergford S, Hartnell S, Scott EM, Lindsay RS, Hunt KF, McCance DR, Barnard-Kelly K, Rankin D, Lawton J, Reynolds RM, Flanagan E, Hammond M, Shepstone L, Wilinska ME, Sibayan J, Kollman C, Beck R, Hovorka R, Murphy HR. Automated Insulin Delivery in Women with Pregnancy Complicated by Type 1 Diabetes. N Engl J Med 2023; 389:1566-1578. [PMID: 37796241 DOI: 10.1056/nejmoa2303911] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
BACKGROUND Hybrid closed-loop insulin therapy has shown promise for management of type 1 diabetes during pregnancy; however, its efficacy is unclear. METHODS In this multicenter, controlled trial, we randomly assigned pregnant women with type 1 diabetes and a glycated hemoglobin level of at least 6.5% at nine sites in the United Kingdom to receive standard insulin therapy or hybrid closed-loop therapy, with both groups using continuous glucose monitoring. The primary outcome was the percentage of time in the pregnancy-specific target glucose range (63 to 140 mg per deciliter [3.5 to 7.8 mmol per liter]) as measured by continuous glucose monitoring from 16 weeks' gestation until delivery. Analyses were performed according to the intention-to-treat principle. Key secondary outcomes were the percentage of time spent in a hyperglycemic state (glucose level >140 mg per deciliter), overnight time in the target range, the glycated hemoglobin level, and safety events. RESULTS A total of 124 participants with a mean (±SD) age of 31.1±5.3 years and a mean baseline glycated hemoglobin level of 7.7±1.2% underwent randomization. The mean percentage of time that the maternal glucose level was in the target range was 68.2±10.5% in the closed-loop group and 55.6±12.5% in the standard-care group (mean adjusted difference, 10.5 percentage points; 95% confidence interval [CI], 7.0 to 14.0; P<0.001). Results for the secondary outcomes were consistent with those of the primary outcome; participants in the closed-loop group spent less time in a hyperglycemic state than those in the standard-care group (difference, -10.2 percentage points; 95% CI, -13.8 to -6.6); had more overnight time in the target range (difference, 12.3 percentage points; 95% CI, 8.3 to 16.2), and had lower glycated hemoglobin levels (difference, -0.31 percentage points; 95% CI, -0.50 to -0.12). Little time was spent in a hypoglycemic state. No unanticipated safety problems associated with the use of closed-loop therapy during pregnancy occurred (6 instances of severe hypoglycemia, vs. 5 in the standard-care group; 1 instance of diabetic ketoacidosis in each group; and 12 device-related adverse events in the closed-loop group, 7 related to closed-loop therapy). CONCLUSIONS Hybrid closed-loop therapy significantly improved maternal glycemic control during pregnancy complicated by type 1 diabetes. (Funded by the Efficacy and Mechanism Evaluation Program; AiDAPT ISRCTN Registry number, ISRCTN56898625.).
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Affiliation(s)
- Tara T M Lee
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Corinne Collett
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Simon Bergford
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Sara Hartnell
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Eleanor M Scott
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Robert S Lindsay
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Katharine F Hunt
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - David R McCance
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Katharine Barnard-Kelly
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - David Rankin
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Julia Lawton
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Rebecca M Reynolds
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Emma Flanagan
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Matthew Hammond
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Lee Shepstone
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Malgorzata E Wilinska
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Judy Sibayan
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Craig Kollman
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Roy Beck
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Roman Hovorka
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
| | - Helen R Murphy
- From the Norfolk and Norwich University Hospitals NHS Foundation Trust (T.T.M.L., H.R.M.) and the Norwich Clinical Trials Unit (C.C., E.F., M.H., L.S.), Norwich Medical School (T.T.M.L., H.R.M.), University of East Anglia, Norwich, Cambridge University Hospitals NHS Foundation Trust (S.H.), and the Wellcome-MRC Institute of Metabolic Science, University of Cambridge (M.E.W., R.H.), Cambridge, the Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds (E.M.S.), the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow (R.S.L.), King's College Hospital NHS Foundation Trust, London (K.F.H.), the Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast (D.R.M.), Barnard Health Research, Southampton (K.B.-K.), and the Usher Institute (D.R., J.L.) and the Centre for Cardiovascular Science (R.M.R.), University of Edinburgh, Edinburgh - all in the United Kingdom; and the Jaeb Center for Health Research, Tampa, FL (S.B., J.S., C.K., R.B.)
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Benhalima K, Beunen K, Siegelaar SE, Painter R, Murphy HR, Feig DS, Donovan LE, Polsky S, Buschur E, Levy CJ, Kudva YC, Battelino T, Ringholm L, Mathiesen ER, Mathieu C. Management of type 1 diabetes in pregnancy: update on lifestyle, pharmacological treatment, and novel technologies for achieving glycaemic targets. Lancet Diabetes Endocrinol 2023; 11:490-508. [PMID: 37290466 DOI: 10.1016/s2213-8587(23)00116-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 06/10/2023]
Abstract
Glucose concentrations within target, appropriate gestational weight gain, adequate lifestyle, and, if necessary, antihypertensive treatment and low-dose aspirin reduces the risk of pre-eclampsia, preterm delivery, and other adverse pregnancy and neonatal outcomes in pregnancies complicated by type 1 diabetes. Despite the increasing use of diabetes technology (ie, continuous glucose monitoring and insulin pumps), the target of more than 70% time in range in pregnancy (TIRp 3·5-7·8 mmol/L) is often reached only in the final weeks of pregnancy, which is too late for beneficial effects on pregnancy outcomes. Hybrid closed-loop (HCL) insulin delivery systems are emerging as promising treatment options in pregnancy. In this Review, we discuss the latest evidence on pre-pregnancy care, management of diabetes-related complications, lifestyle recommendations, gestational weight gain, antihypertensive treatment, aspirin prophylaxis, and the use of novel technologies for achieving and maintaining glycaemic targets during pregnancy in women with type 1 diabetes. In addition, the importance of effective clinical and psychosocial support for pregnant women with type 1 diabetes is also highlighted. We also discuss the contemporary studies examining HCL systems in type 1 diabetes during pregnancies.
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Affiliation(s)
- Katrien Benhalima
- Endocrinology, University Hospital Gasthuisberg, Katholieke Universiteit Leuven, Leuven, Belgium.
| | - Kaat Beunen
- Endocrinology, University Hospital Gasthuisberg, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Sarah E Siegelaar
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Amsterdam Gastroenterology Endocrinology and Metabolism, Amsterdam, Netherlands
| | - Rebecca Painter
- Department of Gynaecology and Obstetrics, Amsterdam UMC, Vrije Universiteit, Netherlands; Amsterdam Reproduction and Development, Amsterdam, Netherlands
| | - Helen R Murphy
- Diabetes and Antenatal Care, University of East Anglia, Norwich, UK
| | - Denice S Feig
- Department of Medicine, Obstetrics, and Gynecology and Department of Health Policy, Management, and Evaluation, University of Toronto, Diabetes and Endocrinology in Pregnancy Program, Mt Sinai Hospital, Toronto, ON, Canada
| | - Lois E Donovan
- Division of Endocrinology and Metabolism, Department of Medicine, and Department of Obstetrics and Gynaecology, Cumming School Medicine, University of Calgary, Calgary, AB, Canada
| | - Sarit Polsky
- Medicine and Pediatrics, Barbara Davis Center for Diabetes, Adult Clinic, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Elizabeth Buschur
- Internal Medicine, Endocrinology, Diabetes, and Metabolism, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Carol J Levy
- Department of Medicine, Endocrinology and Obstetrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yogish C Kudva
- Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Tadej Battelino
- Department of Endocrinology, Diabetes and Metabolism, University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Lene Ringholm
- Center for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen, Denmark
| | | | - Chantal Mathieu
- Endocrinology, University Hospital Gasthuisberg, Katholieke Universiteit Leuven, Leuven, Belgium
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16
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Twigg S, Lim S, Yoo SH, Chen L, Bao Y, Kong A, Yeoh E, Chan SP, Robles J, Mohan V, Cohen N, McGill M, Ji L. Asia-Pacific Perspectives on the Role of Continuous Glucose Monitoring in Optimizing Diabetes Management. J Diabetes Sci Technol 2023:19322968231176533. [PMID: 37232515 DOI: 10.1177/19322968231176533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Diabetes is prevalent, and it imposes a substantial public health burden globally and in the Asia-Pacific (APAC) region. The cornerstone for optimizing diabetes management and treatment outcomes is glucose monitoring, the techniques of which have evolved from self-monitoring of blood glucose (SMBG) to glycated hemoglobin (HbA1c), and to continuous glucose monitoring (CGM). Contextual differences with Western populations and limited regionally generated clinical evidence warrant regional standards of diabetes care, including glucose monitoring in APAC. Hence, the APAC Diabetes Care Advisory Board convened to gather insights into clinician-reported CGM utilization for optimized glucose monitoring and diabetes management in the region. We discuss the findings from a pre-meeting survey and an expert panel meeting regarding glucose monitoring patterns and influencing factors, patient profiles for CGM initiation and continuation, CGM benefits, and CGM optimization challenges and potential solutions in APAC. While CGM is becoming the new standard of care and a useful adjunct to HbA1c and SMBG globally, glucose monitoring type, timing, and frequency should be individualized according to local and patient-specific contexts. The results of this APAC survey guide methods for the formulation of future APAC-specific consensus guidelines for the application of CGM in people living with diabetes.
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Affiliation(s)
- Stephen Twigg
- Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Soo Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, College of Medicine, Seoul National University, Seongnam, South Korea
| | - Seung-Hyun Yoo
- Department of Internal Medicine, Korea University Anam Hospital, Seoul, South Korea
| | - Liming Chen
- Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Yuqian Bao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University School of Medicine, Affiliated Sixth People's Hospital, Shanghai, China
| | - Alice Kong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Ester Yeoh
- Diabetes Centre, Admiralty Medical Centre and Division of Endocrinology, Department of Medicine, Khoo Teck Puat Hospital, Singapore
| | - Siew Pheng Chan
- Department of Medicine, University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Jeremyjones Robles
- Section of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Chong Hua Hospital, Cebu, Philippines
| | - Viswanathan Mohan
- Dr. Mohan's Diabetes Specialities Centre and Madras Diabetes Research Foundation, Chennai, India
| | - Neale Cohen
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Margaret McGill
- Central Clinical School Faculty of Medicine and Health, Diabetes Centre, Royal Prince Alfred Hospital, The University of Sydney, Sydney, NSW, Australia
| | - Linong Ji
- Peking University Diabetes Center, Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
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17
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Dodesini AR, Borella ND, Lepore G, Corsi A, Bonfadini S, Bellante R, Scaranna C, Trevisan R. REAL WORLD INSULIN TREATMENT IN PREGNANT WOMEN WITH TYPE 1 DIABETES USING AN ADVANCED HYBRID CLOSED-LOOP SYSTEM. Diabetes Technol Ther 2023. [PMID: 36930146 DOI: 10.1089/dia.2023.0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
for Letter to Editor is not required.
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Affiliation(s)
| | - Nicolò Diego Borella
- ASST Papa Giovanni XXIII, 9333, Diabetes and endocrinology, piazza OMS,1, Bergamo, Italy, 24127;
| | - Giuseppe Lepore
- Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII Bergamo, USC Malattie Endocrine - Diabetologia, Piazza OMS, 1, Bergamo, Italy, 24127
- United States;
| | - Anna Corsi
- ASST Papa Giovanni XXIII, 9333, Unit of Endocrine Diseases and Diabetology, Bergamo, Lombardia, Italy;
| | | | | | - Cristiana Scaranna
- ASST Papa Giovanni XXIII, 9333, Unit of Endocrine Diseases and Diabetology, Bergamo, Lombardia, Italy;
| | - Roberto Trevisan
- ASST Papa Giovanni XXIII, 9333, Unit of Endocrine Diseases and Diabetology, Bergamo, Lombardia, Italy;
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18
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Wang XS, Dunlop AD, McKeen JA, Feig DS, Donovan LE. Real-world use of Control-IQ™ technology automated insulin delivery in pregnancy: A case series with qualitative interviews. Diabet Med 2023; 40:e15086. [PMID: 36924086 DOI: 10.1111/dme.15086] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/13/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND Most commercially available automated insulin delivery (AID) systems are not approved for pregnancy use. Information regarding use of the Tandem t:slim X2 insulin pump with Control-IQ™ technology in pregnancy is lacking. AIMS This case series aimed to explore glycaemic and qualitative experiences of four early adopters of Control-IQ technology in pregnancy. METHODS Participants used Control-IQ technology in pregnancy and postpartum and consented to analysis of glycaemic data and semi-structured interviews. RESULTS Case 1 began Control-IQ technology at 10 weeks gestation. Her pregnancy glucose time-in-range (3.5-7.8 mmol/L [63-140 mg/dL]) increased from 58.7% to 73.3% by third trimester. Cases 2-4 began using Control-IQ technology 0-2 months preconception. Pregnancy time-in-range glucose increased from 73.4% to 78.7%, 78% to 83.6%, and 46.5% to 71.9% between first and third trimesters, respectively. A mid-pregnancy decline in time-in-range glucose was observed in two of the four participants related to suboptimal pump setting adjustments and delays in sensor and infusion set replacement. No diabetic ketoacidosis or severe hypoglycaemia occurred. All participants reported reduced diabetes management burden and improved sleep with Control-IQ technology use. CONCLUSIONS Early adopters of Control-IQ technology safely used this system off-label in pregnancy and reported reduced diabetes management burden and improved sleep. The largest glycaemic improvements were observed among those with the lowest pregnancy time-in-range glucose at the beginning of pregnancy. Participants with low pregnancy glucose time-in-range increased their time-in-range with Control-IQ technology use and participants with high pregnancy glucose time-in-range maintained and increased their time-in-range with less diabetes management burden.
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Affiliation(s)
- Xinye Serena Wang
- Department of Obstetrics and Gynaecology, University of Calgary, Calgary, Alberta, Canada
| | - Amy D Dunlop
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Julie A McKeen
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Denice S Feig
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Lois E Donovan
- Department of Obstetrics and Gynaecology, University of Calgary, Calgary, Alberta, Canada
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
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19
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Oliver N, Chow E, Luk AOY, Murphy HR. Applications of continuous glucose monitoring across settings and populations: Report from the 23rd Hong Kong diabetes and cardiovascular risk factors-East meets west symposium. Diabet Med 2023; 40:e15038. [PMID: 36617376 DOI: 10.1111/dme.15038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 01/09/2023]
Abstract
Continuous glucose monitoring (CGM) is now an integral part of glycaemic management in people with type 1 diabetes and those with insulin-treated type 2 diabetes. Immediate access to information on CGM glucose levels and trends helps to inform food choices, titration and timing of insulin doses and prompts corrective actions in the event of impending hypo- or hyperglycaemia. Although glycated haemoglobin (HbA1c) remains an important measure of the average of glucose, CGM metrics including time-in-range (TIR) and other metrics on glycaemic variability and hypoglycaemia are strongly endorsed by people with diabetes as impacting their daily lives. There is growing consensus on definitions and targets of CGM metrics with an increasing number of studies demonstrating correlations between CGM metrics and incident complications of diabetes. Implementation of new technologies needs to take into consideration factors such as cost-effectiveness, accessibility as well as acceptability of the person with diabetes and healthcare professional. The United Kingdom is one of the few countries that have developed clinical pathways for integrating CGM into the routine care of people with type 1 diabetes. Besides type 1 diabetes, special groups such as people with impaired kidney function and women during pregnancy may derive additional benefits from CGM.
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Affiliation(s)
- Nick Oliver
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, England
| | - Elaine Chow
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - Andrea O Y Luk
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - Helen R Murphy
- Cambridge University, NHS Foundation Trust, Cambridge, England
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20
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Lee TTM, Murphy HR. What's new in the management of type 1 diabetes in pregnancy? Br J Hosp Med (Lond) 2022; 83:1-10. [PMID: 36594778 DOI: 10.12968/hmed.2022.0412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Type 1 diabetes in pregnancy is associated with an increased risk of complications for both mother and fetus. However, managing glycaemia during pregnancy to reduce these risks is challenging, owing to changes in insulin resistance with advancing gestation, as well as increased daily variation in insulin pharmacokinetics. These factors can add significant psychological and daily self-care burden to mothers during what may already be an anxious time. Increasingly, diabetes technologies are being used during pregnancy to improve and facilitate diabetes self-care. While these can be empowering for people with type 1 diabetes, careful consideration is required in relation to how and when these can be continued safely in the inpatient setting (including acute antenatal admissions, labour and delivery) and when extra support is required from adequately trained healthcare professionals. This article describes current forms of diabetes technologies used and the latest national guidance relating to the care of type 1 diabetes in pregnancy.
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Affiliation(s)
- Tara TM Lee
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Helen R Murphy
- Norwich Medical School, University of East Anglia, Norwich, UK
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21
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Feig DS. Epidemiology and Therapeutic Strategies for Women With Preexisting Diabetes in Pregnancy: How Far Have We Come? The 2021 Norbert Freinkel Award Lecture. Diabetes Care 2022; 45:2484-2491. [PMID: 37579297 DOI: 10.2337/dci21-0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
The field of diabetes in pregnancy has witnessed tremendous changes over the past 30 years, with an explosive growth in case numbers along with new and exciting opportunities to affect outcomes. Type 1 diabetes in pregnancy has increased by 40%, but type 2 diabetes in pregnancy, rarely seen 30 years ago, has more than doubled and, in some cases, tripled in prevalence. Compared with women with type 2 diabetes, women with type 1 diabetes have higher HbA1c, more large-for-gestational-age infants, and more preterm births. Women with type 2 diabetes have more chronic hypertension, more socioeconomic deprivation, and higher rates of perinatal mortality. Large randomized trials in women with diabetes in pregnancy have helped us understand the effectiveness of new technologies (i.e., continuous glucose monitoring) in women with type 1 diabetes, and the addition of metformin to insulin in women with type 2 diabetes, in improving pregnancy outcomes. Future endeavors, including artificial pancreas systems in women with type 1 diabetes and the use of continuous glucose monitoring, a better understanding of nutrition during pregnancy, and approaches to improve preconception and pregnancy self-care in women with type 2 diabetes, may lead to further improved outcomes.
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Affiliation(s)
- Denice S Feig
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute, Toronto, Ontario, Canada
- Sinai Health System, Mount Sinai Hospital, Toronto, Canada
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22
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Mateu-Salat M, Asla Q, Chico A, Martínez MC, Martínez MJ, López A, Pujol I, Corcoy R. Feasibility of maintaining near-normal glucose control in pregnant women with type 1 diabetes during COVID-19 lockdown. Acta Diabetol 2022; 59:977-979. [PMID: 35230539 PMCID: PMC8886860 DOI: 10.1007/s00592-022-01862-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 01/31/2022] [Indexed: 11/12/2022]
Affiliation(s)
- M Mateu-Salat
- Department of Endocrinology and Nutrition, Hospital de La Santa Creu I Sant Pau, C/Sant Quintí 89, 08042, Barcelona, Spain
| | - Q Asla
- Department of Endocrinology and Nutrition, Hospital de La Santa Creu I Sant Pau, C/Sant Quintí 89, 08042, Barcelona, Spain
| | - A Chico
- Department of Endocrinology and Nutrition, Hospital de La Santa Creu I Sant Pau, C/Sant Quintí 89, 08042, Barcelona, Spain
- CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M C Martínez
- Department of Endocrinology and Nutrition, Hospital de La Santa Creu I Sant Pau, C/Sant Quintí 89, 08042, Barcelona, Spain
| | - M J Martínez
- Department of Endocrinology and Nutrition, Hospital de La Santa Creu I Sant Pau, C/Sant Quintí 89, 08042, Barcelona, Spain
| | - A López
- Department of Endocrinology and Nutrition, Hospital de La Santa Creu I Sant Pau, C/Sant Quintí 89, 08042, Barcelona, Spain
| | - I Pujol
- Department of Endocrinology and Nutrition, Hospital de La Santa Creu I Sant Pau, C/Sant Quintí 89, 08042, Barcelona, Spain
| | - R Corcoy
- Department of Endocrinology and Nutrition, Hospital de La Santa Creu I Sant Pau, C/Sant Quintí 89, 08042, Barcelona, Spain.
- CIBER-BBN, Instituto de Salud Carlos III, Madrid, Spain.
- Universitat Autònoma de Barcelona, Barcelona, Spain.
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23
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Lee TTM, Collett C, Man MS, Hammond M, Shepstone L, Hartnell S, Gurnell E, Byrne C, Scott EM, Lindsay RS, Morris D, Brackenridge A, Dover AR, Reynolds RM, Hunt KF, McCance DR, Barnard-Kelly K, Rankin D, Lawton J, Bocchino LE, Sibayan J, Kollman C, Wilinska ME, Hovorka R, Murphy HR. AiDAPT: automated insulin delivery amongst pregnant women with type 1 diabetes: a multicentre randomized controlled trial - study protocol. BMC Pregnancy Childbirth 2022; 22:282. [PMID: 35382796 PMCID: PMC8982306 DOI: 10.1186/s12884-022-04543-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 03/04/2022] [Indexed: 11/30/2022] Open
Abstract
Background Pregnant women with type 1 diabetes strive for tight glucose targets (3.5-7.8 mmol/L) to minimise the risks of obstetric and neonatal complications. Despite using diabetes technologies including continuous glucose monitoring (CGM), insulin pumps and contemporary insulin analogues, most women struggle to achieve and maintain the recommended pregnancy glucose targets. This study aims to evaluate whether the use of automated closed-loop insulin delivery improves antenatal glucose levels in pregnant women with type 1 diabetes. Methods/design A multicentre, open label, randomized, controlled trial of pregnant women with type 1 diabetes and a HbA1c of ≥48 mmol/mol (6.5%) at pregnancy confirmation and ≤ 86 mmol/mol (10%) at randomization. Participants who provide written informed consent before 13 weeks 6 days gestation will be entered into a run-in phase to collect 96 h (24 h overnight) of CGM glucose values. Eligible participants will be randomized on a 1:1 basis to CGM (Dexcom G6) with usual insulin delivery (control) or closed-loop (intervention). The closed-loop system includes a model predictive control algorithm (CamAPS FX application), hosted on an android smartphone that communicates wirelessly with the insulin pump (Dana Diabecare RS) and CGM transmitter. Research visits and device training will be provided virtually or face-to-face in conjunction with 4-weekly antenatal clinic visits where possible. Randomization will stratify for clinic site. One hundred twenty-four participants will be recruited. This takes into account 10% attrition and 10% who experience miscarriage or pregnancy loss. Analyses will be performed according to intention to treat. The primary analysis will evaluate the change in the time spent in the target glucose range (3.5-7.8 mmol/l) between the intervention and control group from 16 weeks gestation until delivery. Secondary outcomes include overnight time in target, time above target (> 7.8 mmol/l), standard CGM metrics, HbA1c and psychosocial functioning and health economic measures. Safety outcomes include the number and severity of ketoacidosis, severe hypoglycaemia and adverse device events. Discussion This will be the largest randomized controlled trial to evaluate the impact of closed-loop insulin delivery during type 1 diabetes pregnancy. Trial registration ISRCTN 56898625 Registration Date: 10 April, 2018.
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Affiliation(s)
- Tara T M Lee
- Norwich Medical School, University of East Anglia, Floor 2, Bob Champion Research and Education Building, Rosalind Franklin Road, Norwich Research Park, Norwich, UK
| | - Corinne Collett
- Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, UK
| | - Mei-See Man
- Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, UK
| | - Matt Hammond
- Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, UK
| | - Lee Shepstone
- Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, UK
| | - Sara Hartnell
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Eleanor Gurnell
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Caroline Byrne
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Eleanor M Scott
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Robert S Lindsay
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Damian Morris
- Department of Diabetes & Endocrinology, East Suffolk & North Essex Foundation Trust, The Ipswich Hospital, Suffolk, UK
| | - Anna Brackenridge
- Department of Diabetes & Endocrinology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Anna R Dover
- Edinburgh Centre for Endocrinology and Diabetes, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Rebecca M Reynolds
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | | | - David R McCance
- Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital Belfast, Belfast, Northern Ireland
| | | | - David Rankin
- The Usher Institute, University of Edinburgh, Edinburgh, Scotland
| | - Julia Lawton
- The Usher Institute, University of Edinburgh, Edinburgh, Scotland
| | | | - Judy Sibayan
- Jaeb Center For Health Research, Tampa, Florida, USA
| | - Craig Kollman
- Jaeb Center For Health Research, Tampa, Florida, USA
| | - Malgorzata E Wilinska
- Wellcome Trust-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Roman Hovorka
- Wellcome Trust-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Helen R Murphy
- Norwich Medical School, University of East Anglia, Floor 2, Bob Champion Research and Education Building, Rosalind Franklin Road, Norwich Research Park, Norwich, UK. .,Norwich Clinical Trials Unit, Norwich Medical School, University of East Anglia, Norwich, UK.
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24
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Yamamoto JM, Murphy HR. Technology and Pregnancy. Diabetes Technol Ther 2022; 24:S96-S106. [PMID: 35475694 DOI: 10.1089/dia.2022.2506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jennifer M Yamamoto
- Department of Internal Medicine, University of Manitoba, Canada
- Department of Medicine, University of Calgary, Canada
- Children's Hospital Research Institute of Manitoba, Manitoba, Canada
| | - Helen R Murphy
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Women's Health Academic Centre, Division of Women's and Children's Health, King's College London, London, UK
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, UK
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