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. 2015 Oct;20(10):937-43.
doi: 10.4103/1735-1995.172767.

Effect of change in patient's bed angles on pain after coronary angiography according to vital signals

Mohamad Amin Younessi Heravi  1 , Mohsen Yaghubi  2 , Simin Joharinia  3
Affiliations

Effect of change in patient's bed angles on pain after coronary angiography according to vital signals

Mohamad Amin Younessi Heravi et al. J Res Med Sci. 2015 Oct.

Abstract

Background: One of the most common and important diagnostic methods for the detection of heart diseases is coronary angiography. The aim of this study was to determine the optimum angle of the bed by using vital signals to optimize the patient's position after the angiography.

Materials and methods: This study was a randomized clinical trial (RCT) on participants after angiography who were divided into five groups. The first group was placed routinely in a supine position. In the other groups, all of the patients were placed in bed by angle 15°, 30°, 45°, and 60° upward. In each group, vital signals were measured that included blood pressure, percent of blood oxygen saturation, heart rate, respiratory rate, and temperature. All of measured data compared with the pain score has been achieved from numerical pain scale. The data were analyzed by descriptive statistics method, variance analysis, and post hoc tests in the Statistical Package for the Social Sciences (SPSS) software, version 16. Estimation of the relationship was done by MATLAB version 2011. The level of significance was considered to be 0.05.

Results: In various groups, there was no significance difference in demographic variables such as gender, age, height, and weight. The mean of pain score, heart rate, systolic blood pressure, and respiratory rate changed significantly (P < 0.05) but the temperature variation, blood oxygen saturation, and diastolic blood pressure in subjects were not significant (P > 0.05). It showed linear changes between pain and systolic blood pressure, respiratory rate, and heart rate changes. A dramatic reduction was also seen in systolic blood pressure, respiratory rate, heart rate, and also pain at an angle of 45(°).

Conclusion: This study showed that, 45(°) was the best angle of the bed to optimize the patient's position after the procedure, based on his/her vital signs and pain score. Thus, in order to relive pain, this change in bed angle is advised to be planned by postangiography nurses in patients after coronary angiography.

Keywords: Coronary angiography; bed position; pain; pain score; vital signals.

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Figures

Figure 1
Figure 1
Recording the signal in 45°
Figure 2
Figure 2
The relationship between pain and heart rate, systolic blood pressure, and respiratory rate with the angle of the bed
Figure 3
Figure 3
The relationship between pain and vital signals (systolic blood pressure, heart rate, and respiratory rate)
See this image and copyright information in PMC

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