Patients with local cold compresses applied when headache developed had significantly different visual analog scale scores before (5.75) and after (2.00) the cold compresses application ( z = 3.558, p = .000). In both groups, the heart rate, systolic and diastolic blood pressure values of patients significantly approached normal values after cold compresses. In our study, more headache was observed in the group without local cold compresses at the start of infusion (53.3%) compared with the group with local cold compresses at the start of infusion (25.8%) ( χ 2 = 4.841, p = .028). Resultsīoth groups were similar in terms of the demographic and clinical features of participants. The first group in the research had cold compresses applied for 20 min with the aid of an applicator at the start of NTG infusion, while the second group had the same implementation when headache developed during infusion. This research used an observational, two-group, pretest–posttest design and was completed from October 2020 to May 2021 in the coronary intensive care unit of a state hospital located in the north of Turkey. To assess the preventive and severity-reducing effect of cold compresses applied to the bilateral frontotemporal and occipital regions, where pain is most frequently experienced, for headache among individuals receiving intravenous NTG treatment. Nitroglycerin (NTG)-induced headache is the most common side effect of nitrate therapy and negatively affects the quality of life.
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