Podcast # 365: Renal Trigger Point Injections - The Emergency Medical Minute

Author: Erik Verzemnieks, MD

Educational Pearls:


  • Single study in Japan demonstrated possible effectiveness of renal colic trigger point
  • Patients had injection at the area of maximal tenderness on palpation of the flank
  • Compared to a muscle relaxer, injection of local anesthetic at the trigger point had faster time to pain relief and fewer rescue therapies 


Iguchi, M et al. Randomized trial of trigger point injection for renal colic. International Journal of Urology. 2002. 9(9): 475-479

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