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Investigating effects of sound frequencies on pain and comfort levels in venous intra-vascular access process; A clinical trial study
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Saeed Mohammadi1    , Ebrahim Ezzati2 , Roghaye Mahooti3 , Afshin Almasi4 , Kavyannejad5 |
1- Assistant Professor, Department of Prehospital Emergency Care, School of Paramedical, Kermanshah University of Medical Sciences, Kermanshah, Iran
2- Assistant Professor, Department of Anesthesiology, School of Paramedical, Kermanshah University of Medical Sciences, Kermanshah, Iran
3- BSc in Nursing, Emam Khomaini Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
4- Associate Professor, Department of Biostatistics and Epidemiology, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
5- Assistant Professor, Department of Physiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran , r.kavyannejad@kums.ac.ir |
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Abstract: (442 Views) |
Background and Aim: Pain caused by intravenous (IV) catheter insertion is a common and unpleasant experience in clinical procedures. This study aimed to investigate the effects of auditory frequencies on pain intensity and comfort during IV catheter insertion.
Materials and Methods: In this triple-blind clinical trial, 300 patients were randomly assigned to 10 intervention and control groups. Patients in the intervention groups were exposed to auditory frequencies ranging from 10 to 200 Hz at an intensity of 50 dB. Pain intensity, heart rate changes, number of attempts for successful sampling, and procedure duration were measured. Data were analyzed using Prism software (version 10).
Results: Pain intensity significantly decreased in the intervention groups as auditory frequency increased (P < 0.05), while patient comfort significantly improved (P < 0.05). No statistically significant differences were observed between groups in the number of attempts or the time required for catheter insertion (P > 0.05). Additionally, the increase in heart rate was significantly lower in the intervention groups at higher auditory frequencies (P < 0.05).
Conclusion: The findings show that exposure to auditory frequencies, particularly higher frequencies, can effectively reduce acute pain and associated hemodynamic responses during IV catheter insertion. Auditory frequencies appear to play a role in modulating pain perception through central nervous system pathways.
Keywords: Acoustic Analgesia, Heart Rate, Pain, Sound |
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| Keywords: Pain, sound, acoustic analgesia, heart rate |
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Full-Text [PDF 1337 kb]
(11 Downloads)
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Type of Study: Original Research |
Subject:
Medicine - Anesthesia
Received: 2025/02/6 | Accepted: 2025/11/1 | Published: 2026/08/20
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