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The effects of cold application on blood pressure in patients with hypertension: A randomized placebo-controlled
Yavuz Uren1, Emine Kiyak2, Sevdegul Karadas3
1Faculty of Health Sciences, Van Yuzuncu Yil Universty, Van, Turkiye.
Aim:
This study evaluated the effects of cold application to the back of the neck on blood pressure in hypertensive patients.
Background:
The back of the neck is an area rich in muscles, nerves, and acupuncture points. Cold application is used as an independent nursing intervention to manage hypertension.
Methods:
This randomized placebo-controlled study was conducted with a total of 72 hypertensive patients (24 experimental, 24 placebo, and 24 control subjects) admitted to the emergency department of a hospital. After their baseline measurements were carried out, the patients were given sublingual captopril; next, a cold gel pack was applied to the experimental group for three minutes.
Results:
There was a significant decrease in systolic blood pressure in the experimental group during the first 27 min following cold application compared to the placebo and control group (p < 0.05). Further, there was a significant decrease in diastolic blood pressure during the first 17 min following cold application in the experimental group compared to the placebo and control group (p < 0.05). Furthermore, a significant decrease in headache severity was observed in the experimental group compared to the control group during 12 min after application.
Conclusions:
It was found that cold application to the back of the neck reduced blood pressure in patients with hypertension.
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