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

The Effect of Different Bed-Head Angles on the Haemodynamic Parameters of Intensive Care Patients

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.

Study Overview

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

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 Type: Interventional
• Enrollment (Actual): 50
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Turkey
  • Nilüfer
    • Bursa, Nilüfer, Turkey, 16059
      • Bursa Uludag University Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

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 Plan

How is the study designed?

Design Details

• Primary Purpose: Supportive Care
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: the different bed-head angles in the supine position; 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.

Other: the bed-head was raised to an angle of 0, 20, 30 and 45 degrees; 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.; Other Names: haemodynamic parameters were recorded

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
central venous pressure	central venous pressure in mmHg	4 months
blood pressure	blood pressure pressure in mmHg	4 months
heart rate	heart rate in beats	4 months
breathing rate	breathing rate in breaths	4 months
peripheral oxygen saturation	peripheral oxygen saturation in %	4 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
weight	weight in kilograms	4 months
height	height in meters	4 months
BMI	BMI in kg/m^2	4 months

Collaborators and Investigators

• Sponsor: Uludag University

Study record dates

Study Major Dates

• Study Start (Actual): March 1, 2022
• Primary Completion (Actual): July 23, 2022
• Study Completion (Actual): September 10, 2022

Study Registration Dates

• First Submitted: August 26, 2023
• First Submitted That Met QC Criteria: August 26, 2023
• First Posted (Actual): September 1, 2023

Study Record Updates

• Last Update Posted (Actual): September 1, 2023
• Last Update Submitted That Met QC Criteria: August 26, 2023
• Last Verified: August 1, 2023

More Information

Terms related to this study

• Keywords: supine position; Intensive care units; central venous pressure; haemodynamic parameters; bed-head angle
• Additional Relevant MeSH Terms: Pathological Conditions, Anatomical; Hernia, Abdominal; Hernia; Hernia, Inguinal
• Other Study ID Numbers: 2022-3/28

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No