• Yasuto Muromiya, Kojiro Nagai, Narushi Yokota, Daigo Okada, Takehiro Suenaga, Yuka Ueda, Kana Kawahara, Hiroomi Kanayama, Jun Minakuchi, and Kenji Tsuchida.
• Department of Kidney Disease (Artificial Kidney and Kidney Transplantation), Kawashima Hospital, Tokushima - Japan.
• J Vasc Access. 2015 Nov 1; 16 Suppl 10: S43-5.

ObjectiveThe objective of this study is to investigate and compare factors associated with pain during vascular access intervention therapy.Subjects And MethodsFifty patients provided informed consent to participate in a survey of pain by questionnaire after receiving dialysis treatment at our hospital. Balloons for use during the procedure were chosen at random in this prospective randomized control study. A numeric rating scale (NRS) was used for pain assessment.ResultsA semi-compliant balloon caused significantly worse pain as compared with the other types of balloons (NRS, 7.67 ± 1.57 vs. 6.02 ± 1.89; p<0.05). There was no correlation between maximum inflation pressure and pain, or between age and pain, and no difference between diabetic and non-diabetic patients. A comparison among vascular dilation locations, as well as a comparison of AVF with AVG also revealed no significant differences.ConclusionsThe reason for severe pain with use of the semi-compliant balloon as compared with the other types might have been due to its characteristics during inflation, as increased diameter leads to an increase in pressure. Mismatching of balloon diameter to vascular diameter may also increase pain.

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