**2.8 Case report Helen**

**Focus**: swift correction of HbA1c attributed to immediate insulin treatment and implementation of hybrid insulin pump MiniMed 780G 3 weeks after T1D diagnosis.

**History:** Helen's (today 53 y/o) issues began when she experienced blurry vision while on holiday. In combination with losing 8 kg over 2 weeks, polydipsia and polyuria led her to seek out medical attention with reason to suspect diabetes. Helen was diagnosed with T1D on September 23, 2021; her HbA1c concentration was 115 mmol/mol. She began treatment with an insulin pen (28 IU/d). After three weeks (October 10, 2021), Helen was indicated to implement the insulin pump MiniMed 780G with a reduced total insulin dose per day (20 ID/d), (**Figures 20** and **21**). She claims that it took her approximately one week to fully understand how to use the insulin pump, how to connect sensor Guardian 4, and how to switch the manual or SmartGuard mode. When asked to compare insulin treatment by means of pen vs. pump, Helen prefers the insulin pump unhesitatingly for its comfortability and lesser frequency of multiple needle pricks.

The biggest challenge for Helen, considering using the pump, is visiting the pool area. Helen called the Medtronic helpline to get information on how to make her summer holiday more comfortable and stay well compensated at the same time. At the time, she was told that her insulin pump is waterproof for up to 24 hours and that the sensor with a transmitter is water resistant for up to 30 minutes. According to Medtronic, although MiniMed 780G is waterproof, it is recommended to remove it before bathing or swimming, because the wear and tear that comes from regular use can increase the risk of water damage [8]. Besides T1D, there is hypertension, transient atrial fibrillation, treated hypothyroidism, and hyperlipoproteinemia in her medical history (**Table 8**). Current TIR: 75% (December 14, 2022).


### **Table 8.**

*Helen's clinical and laboratory parameters from the diagnosis of T1D over 15 months.*

*Benefits of Implementation of Insulin Pump in People with Type 1 Diabetes: 10 Case Reports DOI: http://dx.doi.org/10.5772/intechopen.110073*
