The Effect of Different Bed-Head Angles on the Haemodynamic Parameters of Intensive Care Patients Lying in the Supine Position

Not Applicable

Completed

• Conditions: Thyroidectomy; Inguinal Hernia; Colon Surgery; Cholecystectomy
• Interventions: Other: the bed-head was raised to an angle of 0, 20, 30 and 45 degrees

• Registration Number: NCT06020768
• Lead Sponsor: Uludag University

Brief Summary

Aim: The aim of this study was to examine the effect of different bed-head angles given to patients lying in the supine position in an intensive care unit on the haemodynamic parameters of central venous pressure, systolic and diastolic blood pressure, heart rate, breathing rate and peripheral oxygen saturation.

Methods: The study was conducted with 50 intensive care patients aged 18 and over in a general surgery intensive care unit in Turkey. With each patient in the supine position, the bed-head was raised to an angle of 0, 20, 30 and 45 degrees without a pillow, and the haemodynamic parameters of central venous pressure, systolic and diastolic blood pressure, heart rate, breathing rate and peripheral oxygen saturation were recorded after 0 and 10 minutes.

Detailed Description

Aim: The aim of this study was to examine the effect of different bed-head angles given to patients lying in the supine position in an intensive care unit on the haemodynamic parameters of central venous pressure, systolic and diastolic blood pressure, heart rate, breathing rate and peripheral oxygen saturation.

Design: This was a non-randomised quasi-experimental repeated measures study. Settings: The study was conducted with 50 intensive care patients aged 18 and over in a general surgery intensive care unit in Turkey.

Methods: With each patient in the supine position, the bed-head was raised to an angle of 0, 20, 30 and 45 degrees without a pillow, and the haemodynamic parameters of central venous pressure, systolic and diastolic blood pressure, heart rate, breathing rate and peripheral oxygen saturation were recorded after 0 and 10 minutes. The data obtained was evaluated using the Mann-Whitney test, the Kruskal Wallis test and the Bonferroni test.

Study Timeline

• Study Start: 2022-03-01
• Primary Completion: 2022-07-23
• Study Completion: 2022-09-10
• Status Verified: 2023-08
• Study First Submitted: 2023-08-26
• Study First Submitted QC: 2023-08-26
• Last Update Submitted: 2023-08-26
• Study First Posted: 2023-09-01
• Last Update Posted: 2023-09-01

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• participating voluntarily in the study
• being aged over 18 years,
• having stayed in the General Surgery Intensive Care Unit for at least 24 hours,
• being monitored for 24 hours,
• having a central venous catheter inserted,
• having central venous pressure measured.

Exclusion Criteria

• being less than 18 years of age,
• not wanting to participate in the study, or during the course of the research, wishing to withdraw from the study,
• receiving sedation treatment,
• receiving haemodialysis treatment,
• having an oxygen saturation value of less than 90%,
• being unable to tolerate a 0° prone position (hypovolemic or bradycardic).

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
the different bed-head angles in the supine position	the bed-head was raised to an angle of 0, 20, 30 and 45 degrees	The researcher brought the patient to the supine position with the bed-head at 0 degree, and immediately (minute 0) made haemodynamic measurements: central venous pressure, systolic and diastolic blood pressure, heart rate, breathing rate and peripheral oxygen saturation. It was taken into account that this could change haemodynamic parameters, and immediately after a 10-minute period of rest, the same haemodynamic measurements were repeated. After this, the bed-head was adjusted to an angle of 20 degree, and the same procedure was repeated, with measurements after 0 and 10 minutes. The same procedure was followed with the bed-head raised to 30 degree and then to 45 degree. In positioning the patients' bed-heads to different angles, a spirit level and a protractor were used.

Primary Outcome Measures

Name	Time	Method
blood pressure	4 months	blood pressure pressure in mmHg
breathing rate	4 months	breathing rate in breaths
peripheral oxygen saturation	4 months	peripheral oxygen saturation in %
heart rate	4 months	heart rate in beats
central venous pressure	4 months	central venous pressure in mmHg

Secondary Outcome Measures

Name	Time	Method
weight	4 months	weight in kilograms
BMI	4 months	BMI in kg/m\^2
height	4 months	height in meters

Trial Locations

Locations (1)

Bursa Uludag University Hospital; 🇹🇷 Bursa, Nilüfer, Turkey