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Comparison between shorter straight and thinner microtapered insulin injection needles
Yoshio Nagai1, Toshihiko Ohshige, Kaori Arai
1Department of Internal Medicine, Division of Metabolism and Endocrinology, St. Marianna University School of Medicine , Kawasaki, Japan. ynagai@marianna-u.ac.jp
Diabetes Technology & Therapeutics
|April 30, 2013
Summary
Patients preferred a shorter, straight insulin needle (BD32S4) over a thinner, tapered needle (TR33T5) for reduced injection pain. Glycemic control was similar between the two needles, indicating comfort can be improved without compromising diabetes management.
Area of Science:
- Endocrinology and Metabolism
- Medical Devices and Technology
Background:
- Subcutaneous insulin injections are common for diabetes patients but can cause pain, discomfort, and anxiety.
- Existing insulin needles vary in gauge and length, impacting patient experience and adherence.
Purpose of the Study:
- To compare the efficacy (glycemic control) and patient preference between a shorter straight needle (BD32S4) and a thinner microtapered needle (TR33T5).
- To evaluate patient-reported pain, handling, and acceptance of different insulin needle types.
Main Methods:
- A randomized, open-label crossover trial involving 84 diabetes patients.
- Patients used each needle type (BD32S4 and TR33T5) for 4-week periods.
- Glycemic control was assessed via serum glycated albumin; pain was measured using a visual analog scale (VAS); preference was determined via questionnaire.
Main Results:
- No significant difference in glycemic control was observed between the BD32S4 and TR33T5 needles.
- Patients reported significantly less pain with the shorter BD32S4 needle (mean VAS difference -14.5 mm).
- A higher percentage of patients preferred the BD32S4 needle (60.3%) over the TR33T5 needle (19.2%).
Conclusions:
- The shorter, straight BD32S4 needle was preferred by patients due to reduced injection pain, improved usability, and better visual impression.
- Needle length appears to be a key factor in patient comfort during insulin injections, without negatively affecting glycemic control.
- Further research should consider other needle factors influencing patient comfort in diabetes care.
