Effective Concentration of Lidocaine Plus Fentanyl for Caudal Block in Patients Undergoing Transrectal Ultrasound Guided Prostate Biopsy

<div>The anesthetic effect of different lidocaine concentrations for caudal block in 23 consecutive patients undergoing TRUS guided prostate biopsy.</div>

Pain Research and Treatment

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Figure 1

Figure 1: Effective Concentration of Lidocaine Plus Fentanyl for Caudal Block in Patients Undergoing Transrectal Ultrasound Guided Prostate Biopsy 