Effect of music therapy intervention on anxiety and pain during percutaneous renal biopsy: a randomized controlled trial

Background. Percutaneous renal biopsy (PRB) may subject patients to emotional distress and pain before and during the biopsy. The aim of this study was to evaluate the effects of complementary/non-pharmacological interventions such as music therapy (MT) on anxiety, pain and satisfaction in renal patients undergoing PRB.Methods. A prospective, single-centre, single-blind, randomized controlled two-arm trial was conducted. Patients >= 18 years of age, hospitalized at the Nephrology, Dialysis and Transplantation Unit (Bari, Italy) and scheduled for PRB were screened. Participants were assigned to standard treatment (CG) or to the music therapy (MT) intervention group. Participants in the MT group received standard care and an MT intervention by a certified music therapist qualified in guided imagery and music. The CG patients received the standard of care. MT and CG patients were subjected to identical measurements (pre/post) of the parameters in the State Trait Anxiety Inventory Y1 (STAI-Y1), visual analogue scale for pain (VAS-P) and satisfaction (VAS-S) and heart rate variability.Results. A statistically significant difference in the anxiety scores after PRB between MT and CG patients (STAI-Y1 35.4 +/- 6.2 versus 42.9 +/- 9.0) was observed. MT also had strong and significant effects on VAS-P compared with CG (5.0 +/- 1.4 versus 6.3 +/- 1.3, respectively; P < .001) and VAS-S (7.8 +/- 1.0 versus 6.0 +/- 0.9, respectively; P < .001). Decreased activity of the sympathetic nervous system and increased activity of the parasympathetic nervous system was observed after PRB in the MT group.Conclusion Our study supports the use of MT to mitigate the psychological anxiety, pain and sympathetic activation associated with PRB.