Music to relieve pain and anxiety in cardiac catheterization: A systematic review and meta-analysis.

Objectiveto evaluate the effectiveness of using music to relieve pain, anxiety, and change in vital signs in adult and older adult patients undergoing cardiac catheterization.Methodsthis is a systematic review with meta-analysis carried out in October 2022, using 12 data sources, without time or language restrictions. The study followed the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. The "Risk-of-bias tool" was used to assess the risk of bias, the "R CORE Team program: A language and environment for statistical computing" was used to perform the meta-analysis, and the "Grading of Recommendations Assessment, Development and Evaluation" was used to assess the quality of evidence in the studies. Results: a total of nine studies were included, totaling 1456 participants. The most used tools for measuring anxiety were the State-Trait Anxiety Inventory and Numerical Rating Scale. This was also used to measure pain, in addition to the Visual Analogue Scale. The use of instrumental, classical and relaxing music prevailed, applied using headphones during the painful procedure, at a frequency of 60 to 100bpm and sound intensity of 60-70 dB. There was statistical significance in the use of music in reducing pain, anxiety and systolic blood pressure. Conclusion: music interventions are effective in relieving pain, reducing systolic pressure and anxiety, but indifferent in terms of heart rate, respiratory rate and diastolic pressure. They provide humanization of care, can reduce hospital costs and length of hospital stay.