Case Report: Subcutaneous sensor-augmented insulin pump therapy in a 510-g preterm infant with hyperglycemia - Summary - MDSpire

Case Report: Subcutaneous sensor-augmented insulin pump therapy in a 510-g preterm infant with hyperglycemia

  • By

  • Christian Schlunk

  • Patrick Neuberger

  • Christina Künle

  • Martin Holder

  • Neysan Rafat

  • June 18, 2026

  • 0 min

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Objective:

To report the first use of combined continuous glucose monitoring (CGM) and continuous subcutaneous insulin infusion (CSII) in an extremely low birth weight (ELBW) infant, highlighting its clinical significance.

Key Findings:
  • Mean glucose level was 162 ± 57 mg/dL over 14 days, indicating significant glycemic control.
  • Time in target glucose range (62–180 mg/dL) was 59.4%, suggesting effective management.
  • CGM reduced invasive glucose measurements from 84–168 to 20, a reduction of 76%–88%, minimizing discomfort and risk.
Interpretation:

The case demonstrates the feasibility of sensor-augmented subcutaneous insulin pump therapy in an ELBW infant, providing a foundation for future closed-loop trials.

Limitations:
  • This is a single case report, limiting generalizability.
  • The off-label use of devices and medications may not reflect standard clinical practice.
  • Further studies are needed to validate findings in larger populations.
Conclusion:

This case establishes proof-of-concept for sensor-augmented subcutaneous insulin pump therapy in ELBW infants, with potential implications for future clinical practices and research.

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