scholarly journals A Pilot Study of Flat and Circadian Insulin Infusion Rates in Continuous Subcutaneous Insulin Infusion (CSII) in Adults with Type 1 Diabetes (FIRST1D)

2020 ◽  
pp. 193229682090619
Author(s):  
Siân Rilstone ◽  
Monika Reddy ◽  
Nick Oliver
Keyword(s):  
Type 1 Diabetes ◽  
Pilot Study ◽  
Insulin Infusion ◽  
Insulin Dose ◽  
Total Daily Dose ◽  
Subcutaneous Insulin ◽  
Basal Rate ◽  
Absolute Change ◽  
Significant Difference

Background: Initiation of continuous subcutaneous insulin therapy (CSII) in type 1 diabetes requires conversion of a basal insulin dose into a continuous infusion regimen. There are limited data to guide the optimal insulin profile to rapidly achieve target glucose and minimize healthcare professional input. The aim of this pilot study was to compare circadian and flat insulin infusion rates in CSII naïve adults with type 1 diabetes. Methods: Adults with type 1 diabetes commencing CSII were recruited. Participants were randomized to circadian or flat basal profile calculated from the total daily dose. Basal rate testing was undertaken on days 7, 14 and 28 and basal rates were adjusted. The primary outcome was the between-group difference in absolute change in insulin basal rate over 24 hours following three rounds of basal testing. Secondary outcomes included the number of basal rate changes and the time blocks. Results: Seventeen participants (mean age 33.3 (SD 8.6) years) were recruited. There was no significant difference in absolute change in insulin basal rates between groups ( P = .85). The circadian group experienced significant variation in the number of changes made with the most changes in the morning and evening ( P = .005). The circadian group received a greater reduction in total insulin (−14.1 (interquartile range (IQR) −22.5-12.95) units) than the flat group (−7.48 (IQR −11.90-1.23) units) ( P = .021). Conclusion: The initial insulin profile does not impact on the magnitude of basal rate changes during optimization. The circadian profile requires changes at specific time points. Further development of the circadian profile may be the optimal strategy.

scholarly journals Continuous Subcutaneous Insulin Infusion Initiation Is Associated With Blood Pressure Reduction in Adults With Type 1 Diabetes

2019 ◽  
Vol 13 (4) ◽  
pp. 691-697 ◽  
Author(s):  
Konstantinos Markakis ◽  
Tayiba Alam ◽  
Pushpa Jinadev ◽  
Alyson Chapman ◽  
Andrea Urwin ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Type 1 Diabetes ◽  
Antihypertensive Treatment ◽  
Continuous Subcutaneous Insulin Infusion ◽  
Antihypertensive Medication ◽  
Insulin Infusion ◽  
Subcutaneous Insulin ◽  
Significant Difference ◽  
Treatment Naïve

Background: In type 1 diabetes (T1D) continuous subcutaneous insulin infusion (CSII) use has been associated with lower risks for mortality and diabetes-related complications when compared to multiple daily injections. There are limited data on the effect of CSII on blood pressure (BP). We aimed to evaluate the relationship between CSII initiation and BP changes. Methods: We performed a retrospective, single-center, observational study including all adults with T1D who initiated CSII between 2001 and 2014. Mean systolic BP levels were calculated from values obtained up to 15 months before and up 15 months after CSII initiation. Results: We studied 436 adults (46% male; mean [95% CI] age: 45 [36, 54] years, duration of diabetes: 20.3 [19.1, 21.5] years). CSII was associated with the following changes (post minus pre CSII levels) in mean (95% CI) SBP and DBP levels, respectively: whole cohort (N = 436): −2 (−1, −3), P < .001 and −2 (−1, −2), P < .001; those taking stable antihypertensive medication (n = 118): −4 (−6, −2), P < .001 and −2 (−3, −1), P < .001; antihypertensive treatment-naïve patients (n = 279): −1 (−2, 0), P = .147 and −1 (−2, 0), P = .002. In multivariate regression analysis including age, sex, diabetes duration, pre-CSII BP, HbA1c and weight changes, only pre-CSII BP showed an independent association with BP drop in all patients’ groups. Once adjusted for pre-CSII BP there was no significant difference between those on antihypertensive drugs and antihypertensive treatment-naïve individuals. Conclusions: We showed BP reduction in association with CSII therapy particularly in those on antihypertensive medication. These original findings may partly explain the cardiovascular and mortality benefits associated with CSII therapy.

scholarly journals Continuous Subcutaneous Insulin Infusion and Its Characteristics in Young People with Type 1 Diabetes with Optimal Glucose Control (Preprint)

2018 ◽  
Author(s):  
Goran Petrovski ◽  
Marija Zivkovic
Keyword(s):  
Type 1 Diabetes ◽  
Young People ◽  
Glucose Control ◽  
Continuous Subcutaneous Insulin Infusion ◽  
Insulin Infusion ◽  
Early Morning ◽  
Fine Tuning ◽  
Subcutaneous Insulin ◽  
Basal Rate

BACKGROUND Continuous subcutaneous insulin infusion (CSII) is established model for mimicking physiological insulin, which can overcome some of these barriers. CSII therapy is becoming more popular treatment modality in young people with T1D.Several studies have demonstrated the superiority of CSII over MDI therapy in T1D patients in terms of improved glucose control, the rate of hypoglycemia, dawn phenomenon and glucose variability OBJECTIVE To describe Continuous Subcutaneous Insulin Infusion (CSII) characteristics in young people with Type 1 Diabetes (T1D) with optimal glucose control and to describe possible simple CSII settings for fine tuning. METHODS This retrospective study was conducted at University Clinic of Endocrinology, Diabetes and Metabolic Disorders in Skopje. The study enrolled CSII patients with T1D (age 12-25 years) visited our center from January to December 2016. Patient characteristics were collected through the electronic medical record system and CSII characteristics were obtained from 8 weeks reports prior to Hba1c, generated by Carelink Therapy Management Software (Medtronic, Northridge, USA). RESULTS Ninety-three patients were grouped according age: 12-18 years and 19-25 years. More than 70% of patients achieved HbA1c <7.5% (<58 mmol/mol). Significant difference in basal insulin was found between two age groups. Patients aged 12-18 years had five basal segments, less basal rate in early morning (03-07h) and slight decrease of afternoon basal rate (13-19h), comparing with patients aged 19-25 years with four basal segments, more basal rate in early morning (03-07h) and no decrease of afternoon basal rate (13-19h). CONCLUSIONS Optimal glucose control is achievable in real life conditions among T1D patients on CSII therapy. Bolus wizard, frequent bolusing, multiple basal segments, and close follow up can be determinants for better control. Simple CSII settings as a tool, derived from our data may help clinicians to fine tune T1D patients and achieve optimal glucose control. CLINICALTRIAL EN16-12

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