Empirical study on the effect of improving the sonic environment in the operating room on the health and cognitive behavior of medical staff: with special reference to hypersonic effect

Empirical study on the effect of improving the sonic environment in the operating room on the health and cognitive behavior of medical staff: with special reference to hypersonic effect - HYS

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000045488

Enrollment

120

Registered

2021-10-01

Start date

2022-11-30

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

Environmental stress

Interventions

HYP Group: Hypersonic Natural Sound Environment Group N-HYP Group: Non-Hypersonic Natural Sound Environment Group Normal Sound Environment Group

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 120 medical professionals (surgeons and the first assistant surgeons) involved in 60 elective cases of major liver or pancreas surgery in Mie University Hospital

Exclusion criteria

Exclusion criteria: #1 Emergency surgery, #2 Overtime Surgery, #3 surgery with extraordinary invasiveness, #4 if surgoens were involved in the previous study within two weeks, #5 cases considered inapropriate by the principal investigator in this study

Design outcomes

Primary

Measure	Time frame
The effectiveness of stress reduction upon medical staff in the operating theatre by Hypersonic Sound Items of investigation: #1 stress, performance evaluation: CES-D (National Institute of Mental Health), JPSS (Japanese version of subjective stress evaluation). #2 Cognitive function: Benton Visual Retention test. #3 Physiological function: heart rate, respiratory rate, salivary alfa-amylase, salivary cortisol activity	—

Measure

Time frame

The effectiveness of stress reduction upon medical staff in the operating theatre by Hypersonic Sound Items of investigation: #1 stress, performance evaluation: CES-D (National Institute of Mental Health), JPSS (Japanese version of subjective stress evaluation). #2 Cognitive function: Benton Visual Retention test. #3 Physiological function: heart rate, respiratory rate, salivary alfa-amylase, salivary cortisol activity

—

Secondary

Measure	Time frame
1# FFT (Fast Fourier Transform) analysis of the environmental noises in the operating theatre, 2# influences on medical staff stress due to differences in sonic environment	—

Countries

Japan

Contacts

Public ContactYasuo Oku

Iga City Ueno General Hospital General affairs office of Iga City General Hospital

byouin-soumu@city.iga.lg.jp0595-24-1111

Outcome results

None listed

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