Effect of Implementation of Noise Reduction Protocols in Decibel Reduction, Quality of Sleep and Incidence of Delirium in Patients in Critical Care Settings (ICU) : A Prospective study in selected hospital of New Delhi.

This study aims to evaluate the effectiveness of noise reduction protocols in reducing decibel levels, improving sleep quality, and lowering delirium incidence in ICU patients. Conducted over 7 months in the Critical care unit of Holy Family Hospital  it follows a prospective, quasi-experimental cohort design using a quantitative approach .The study involves three phases :First phase baseline data collection (3 months), Second Phase protocol implementation through staff training (1 month), and Final Phase post-intervention reassessment (3 months). Sound levels are measured at key locations and times, while sleep quality and delirium are assessed using a predefined questionnaire and CAM-ICU scores. The study aims to identify and address noise sources, enhance patient outcomes, and demonstrate the impact of noise reduction protocols in critical care settings.

Objectives

• Primary: To assess the impact of noise reduction protocols on decibel levels in the ICU.
• Secondary: To evaluate their effects on patient sleep quality and the incidence of delirium using the CAM-ICU score.

MethodologyThe study includes ICU patients over 18 years of age, conscious and oriented for at least 48 hours, excluding those on sedation, with neurological, psychiatric, hearing, or speech disorders, or requiring NIV for the first time.

• Baseline Phase (3 months): Collect data on sound levels (8 times/day), sleep quality using a questionnaire, and delirium incidence through the CAM-ICU score.
• Intervention Phase (1 month): Implement noise reduction protocols through staff education, a predefined training program and implementation of predefined noise protocol.
• Reassessment Phase (3 months): Measure post-intervention decibel levels, sleep quality, and delirium incidence using the same tools.

Tools Used

• Decibel meter to record sound at key ICU locations and times.
• CAM-ICU score for delirium assessment.
• Sleep quality questionnaire.
• Training module for staff education.

Expected OutcomesThe study aims to identify correctable noise sources, assess protocol effectiveness in reducing noise levels, improve sleep quality, and reduce delirium incidence in ICU patients.