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Appropriate Needle Length Determined Using Ultrasonic Echograms for Intramuscular Injections in Japanese over 50 years-old adults

Exploratory clinical research of Needle Length Determined Using Ultrasonic Echograms for Intramuscular Injections - Appropriate Needle Length Determined Using Ultrasonic Echograms for Intramuscular Injections

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000040320
Enrollment
160
Registered
2020-05-07
Start date
2020-09-30
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None

Interventions

Measurement and Ulterasonic echogram of center of deltoid muscle area of upper arm

Sponsors

Kitasato University Omura Satoshi Memorial Institute
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 50 subjects aged 50-64 years, 50 subjects aged 65-74 years, and 60 subjects aged >75 years (20 for each group: Outpatients, Elderly needed nursing care, and Elderly on bedridden) (1) Adults and elderly who assigned the informed consent. (2) Elderly in a nursing home who assigned the informed consent by themselves or legal representatives. (3) Subjects with non-serious transient illness (upper respiratory infection, etc.) and those with chronic ailments are included when principal investigator (PI)/ sub investigator (SI) consider possible to participate the study. (4) Japanese adults (born in Japan, and speak Japanese.) <Reasons for settings> (1) Based on the ethical reasons (2) Based on the ethical reasons (3) Excluding the influence of echogram on health condition and safety assurance. (4) Investigation for Japanese adults.

Exclusion criteria

Exclusion criteria: (1) Adults and elderly with some problems at the deltoid area (2) Subjects who have some problems on measuring the circumference or Echogram judged by PI or SI. (3) Adults and elderly with acute or chronic serious illness. (4) Adults and elderly with some disorder at upper limb. (5) Adults and elderly suffering from neurological or muscular illness or with the history of these illness. (6) Subjects who are judged as not appropriate by PI or SI. (7) Adults and elderly without informed consent by themselves or a legal representative. Reasons for settings (1)-(6) These items have potential influence on measuring the circumference and length of subcutaneous tissues. (6) for safety assurance (7) for securing the neutrality and ethical matters.

Design outcomes

Primary

MeasureTime frame
Analyze the thickness of the epidermis, subcutaneous tissue, and muscle tissues based on the different intensities of echograms. The correlation between the subcutaneous lengths and the body size is investigated.

Countries

Japan

Contacts

Public ContactTetsuo Nakayama

Kitasato University Omura Satoshi Memorial Institute

tetsuo-n@lisci.kitasato-u.ac.jp03-5791-6269

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026