Active Noise Cancelling in postoperative care: Effects on sleep, sleep quality and delirium

Active Noise Cancelling in postoperative care: Effects on sleep, sleep quality and delirium - Zero Noise

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00031177

Enrollment

100

Registered

2023-02-06

Start date

2022-11-01

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

Sleep disorders, postoperative delirium

Interventions

Group 1: Intervention group (Active Noise Cancelling, ANC) Patients randomized to the intervention group will recieve a head set with active noise cancelling technology (ANC) for the first night after

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - age >18 - able to consent - elective operation, all disziplines - elective postoperative admission on a postoperative care, intermediated care or intensive care unit

Exclusion criteria

Exclusion criteria: - not able to consent - medical reasons against the use of the actigraphy device (Actiwatch) on the wrist (e.g. fractures) - medical reasons against the use of the ANC head sets (e.g. ear surgery) - Diseases with tremor, involuntarily muscle contractions or moving impairment - obstructive sleep apnoe syndrome (OSAS) - hearing impairment (who grade 3,4) - deafness - blindness - soporific abusus - acute or chronic pruritus - acute central nervous system disease (e.g. head trauma, ICB, stroke) - severe sepsis, septic shock - intoxication

Design outcomes

Primary

Measure	Time frame
1. Sleep Quality during the first postoperative night on the observation ward. Assessment on the next morning will be made by Richard Campell Sleep Questionnaire.	—

Secondary

Measure	Time frame
1) Postoperative delirium on the first postoperative day. Assessment will be made by confusion assessment method for the intensive care unit (CAM-ICU) 2.) Sleeping pattern (Total sleep time, wake after sleep onset, onset latency, sleep latency, sleep efficiency, number of awakenings) during the first postoperative night, monitored by actigraphy.	—

Countries

Germany

Contacts

Public ContactThorsten Annecke

Krankenhaus Köln-Merheim, Klinikum der Universität Witten/ Herdecke, Klinik für Anästhesiologie und operative Intensivmedizin

annecket@kliniken-koeln.de+40 0221 8907 0

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026