Predictors of Sleep Quality in Patients Undergoing Open-Heart Surgery

NCT07755280 | Completed DMC

• 1 other identifier: Predictors of Sleep Quality
• Study Type: observational
• Target: 157
• Locations: 1 country
• Sites: 1

Brief Summary

Sleep quality is a complex and multidimensional phenomenon shaped by the interaction of patient characteristics, symptom burden, and environmental factors specific to the intensive care unit environment. Despite this multidimensional nature, studies identifying predictors of sleep quality in intensive care units after cardiac surgery are limited.

Conditions

Sleep Quality; Nursing Care; Intensive Care (ICU)

Outcome Measures

Primary Outcomes (4)

• Pain

  Assessed wit Visual Analog Scale. his scale is a unidimensional, self-report instrument measuring 10 cm in length. The lower end corresponds to a score of 0, labeled 'no pain,' while the upper end corresponds to a score of 10, labeled 'unbearable pain.' Higher scores on the scale indicate greater severity of pain as reported by the patient.

  At least 24 hours after admission to the intensive care unit

• Sleep quality

  Assessed with Richard- Campbell Sleep Questionnaire. he scale consists of 6 items assessing sleep quality, nocturnal sleep depth, frequency of awakening, ambient noise level, time spent awake, and sleep onset latency. Each item is rated on a visual analog scale ranging from 0 to 100. The total score obtained from the scale is divided by the number of items to calculate the scale score. A scale score between 0 and 25 is interpreted as very poor sleep, while a score between 76 and 100 is interpreted as very good sleep.

  At least 24 hours after admission to the intensive care unit

• Fatigue

  Assessed wit Visual Analog Scale. his scale is a unidimensional, self-report instrument measuring 10 cm in length. The lower end corresponds to a score of 0, labeled 'no fatigue,' while the upper end corresponds to a score of 10, labeled 'unbearable fatigue.' Higher scores on the scale indicate greater severity of fatigue as reported by the patient.

  At least 24 hours after admission to the intensive care unit

• Environmental Stressors

  Assessed with Intensive Care Unit Environmental Stressors Scale. The scale is of a 4-point Likert type and consists of 42 items. The minimum possible score is 42 and the maximum is 168. Higher scores are interpreted as indicating a greater degree of being affected by environmental stressors.

  At least 24 hours after admission to the intensive care unit

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Patients admitted to the cardiovascular intensive care unit after open heart surgery

You may qualify if:

• ability to understand and speak Turkish,
• willingness to participate in the study,
• having spent at least 24 hours in the intensive care unit, and
• having the cognitive ability to understand and answer questions.

You may not qualify if:

• having taken narcotic or sedative drugs within the last 48 hours,
• having a history of chronic diseases that can cause sleep problems such as Chronic Obstructive Pulmonary Disease or sleep apnea,
• having a psychiatric illness diagnosed by a physician,
• having a visual or hearing impairment.

Sponsors & Collaborators

• Aydin Adnan Menderes University: lead

Study Sites (1)

Aydın Adnan Menderes University

Aydin, Zafer Mahallesi, 09010, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Sleep Initiation and Maintenance Disorders

Condition Hierarchy (Ancestors)

Sleep Disorders, Intrinsic; Dyssomnias; Sleep Wake Disorders; Nervous System Diseases; Mental Disorders

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: PhD, Research Assisstant (Principal Investigator)

Study Record Dates

• First Submitted: August 5, 2026
• First Posted: August 10, 2026
• Study Start: September 15, 2025
• Primary Completion: March 15, 2026
• Study Completion: May 15, 2026
• Last Updated: August 10, 2026

Record last verified: 2026-08

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL
• Time Frame: 12 months after publication

Locations

TU (1)