IRCT20131228015965N24 IRCT 2024-09-22 Rafsanjan University of Medical Sciences Comparison of the Effect of cold needle and lidocaine spray on the intensity of pain caused by vascular needles insertion in hemodialysis patients Comparison of the effect of cold needle and lidocaine spray on the intensity of pain caused by vascular needles insertion in hemodialysis patients 2024-09-28 anticipated 30 Complete https://irct.ir/trial/78998 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Factorial, Purpose: Supportive, Randomization description: Each patient enters the study 4 times and each patient is his own control group. And by a simple randomization method, using a lottery, it is determined for each patient which intervention will be treated in each session. Each intervention or placement in the control group is assigned a number from one to four, then a lottery is conducted for each patient and the order of interventions is determined. For example, patient number one, his first intervention is cold needle, then a week later his second intervention is placebo, then control group and finally lidocaine spray. Or, for example, out of thirty patients, seven of them will have their first cold needle intervention determined by lottery. And five patients, their first intervention is placebo, Blinding description: The patient and the pain evaauator cannot distinguish the container containing lidocaine spray from the container containing distilled water by using two completely similar containers, and the pain evaluator will not know the executive interventions. N/A Pain caused by Vascular needles in hemodialysis patient. Intervention 1: Intervention group: 10% lidocaine spray, two puffs from a distance of five centimeters in the place where the needle is inserted, five minutes before inserting the vascular needles. Intervention 2: Intervention group: Placebo lidocaine spray, which uses distilled water in a container similar to the lidocaine spray container and two puffs from a distance of five centimeters, five minutes before entering the sample of vascular needles. Intervention 3: Intervention group: Fistula cannulation with vascular needles kept at -10_ -13 degrees Celsius for 24 hours. Intervention 4: Control group: Performing fistula cannulation in the common way in the hemodialysis department. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information