| Case Report | Korean J Pain 2012 January; Vol. 25, No. 1: 52-54 pISSN 2005-9159 eISSN 2093-0569 http://dx.doi.org/10.3344/kjp.2012.25.1.52 Treatment Experience of Pulsed Radiofrequency Under Ultrasound Guided to the Trapezius Muscle at Myofascial Pain Syndrome -A Case Report- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea Chung Hoon Park, MD, Yoon Woo Lee, MD, Yong Chan Kim, MD, Joo Hwa Moon, MD, and Jong Bum Choi, MD Trigger point injection treatment is an effective and widely applied treatment for myofascial pain syndrome. The trapezius muscle frequently causes myofascial pain in neck area. We herein report a case in which direct pulsed radiofrequency (RF) treatment was applied to the trapezius muscle. We observed that the RF treatment produced continuous pain relief when the effective duration of trigger point injection was temporary in myofascial pain. (Korean J Pain 2012; 25: 52-54) Key Words: myofascial pain, pulsed RF (radiofrequency), trigger point injection. Myofascial pain syndrome is a common disease. The rary treatment method. Therefore, we report on a my- main treatment includes injection therapy at the trigger ofascial pain syndrome case where direct pulsed radio- point and medication in which an analgesic anti-inflam- frequency treatment was applied to the trapezius muscle matory agent and muscle relaxant are administrated on which TPI had been sufficiently effective but of short together. Trigger point injection (TPI) is widely applied duration. Moreover, the analgesic effect of the pulsed RF since it is effective in most cases and easily performed on treatment was maintained for a considerable duration. outpatients. However, the duration of pain relief may, in some cases, be short. Hence, many patients return to the clinic as outpatients when the analgesic effect diminishes. TPI may be used many times, but repetitive TPI may be CASE REPORT A 47-year old female patient visited our clinic with the rejected because of its cost and the fact that it relies on main complaint of neck pain that had become severe over a needle injection. Some patients consider TPI as a tempo- the past year. The medical history showed that the patient Received September 30, 2011. Revised November 15, 2011. Accepted November 15, 2011. Correspondence to: Jong Bum Choi, MD Department of Anesthesioligy and Pain Medicine, Gangnam Severance Hospital, 712, Eonju-ro, Gangnam-gu, Seoul 135-720, Korea Tel: ＋82-2-2019-3520, Fax: ＋82-2-3463-0940, E-mail: romeojb@yuhs.ac This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:// creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright ⓒ The Korean Pain Society, 2012