Journal of Yeungnam Medical Science

Review article

Ultrasound imaging and guidance in the management of myofascial pain syndrome: a narrative review: Wei-Ting Wu, Ke-Vin Chang, Vincenzo Ricci, Levent Özçakar; J Yeungnam Med Sci. 2024;41(3):179-187. Published online June 17, 2024; DOI: https://doi.org/10.12701/jyms.2024.00416

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Myofascial pain syndrome (MPS) is a common musculoskeletal disorder characterized by muscle pain, tenderness, and trigger points. Ultrasonography has emerged as a key tool for diagnosing and treating MPS owing to its ability to provide precise, minimally invasive guidance. This review discusses the use of ultrasonography in various approaches to evaluate and manage MPS. Studies have shown that shear-wave sonoelastography can effectively assess muscle elasticity and offer insights into trapezius stiffness in patients with MPS. Ultrasound-guided interfascial hydrodissection, especially with visual feedback, has demonstrated effectiveness in treating trapezius MPS. Similarly, ultrasound-guided rhomboid interfascial plane blocks and perimysium dissection for posterior shoulder MPS have significantly reduced pain and improved quality of life. The combination of extracorporeal shockwave therapy with ultrasound-guided lidocaine injections has been particularly successful in reducing pain and stiffness in trapezius MPS. Research regarding various guided injections, including dry needling, interfascial plane blocks, and fascial hydrodissection, emphasizes the importance of ultrasonography for accuracy and safety. Additionally, ultrasound-guided delivery of local anesthetics and steroids to the quadratus lumborum muscle has shown lasting pain relief over a 6-month period. Overall, these findings highlight the pivotal role of ultrasonography in the assessment and treatment of MPS.

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Integrating Ultrasound-Guided Multifidus Injections with Repeated Peripheral Magnetic Stimulation for Low Back Pain: A Feasibility Study
Wei-Ting Wu, Ke-Vin Chang, Levent Özçakar
Journal of Pain Research.2024; Volume 17: 2873. CrossRef

Focused Review article

Ultrasound-guided interventions for controlling the thoracic spine and chest wall pain: a narrative review: Donghwi Park, Min Cheol Chang; J Yeungnam Med Sci. 2022;39(3):190-199. Published online April 26, 2022; DOI: https://doi.org/10.12701/jyms.2022.00192

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Abstract PDF

Ultrasound-guided injection is useful for managing thoracic spine and chest wall pain. With ultrasound, pain physicians perform the injection with real-time viewing of major structures, such as the pleura, vasculature, and nerves. Therefore, the ultrasound-guided injection procedure not only prevents procedure-related adverse events but also increases the accuracy of the procedure. Here, ultrasound-guided interventions that could be applied for thoracic spine and chest wall pain were described. We presented ultrasound-guided thoracic facet joint and costotransverse joint injections and thoracic paravertebral, intercostal nerve, erector spinae plane, and pectoralis and serratus plane blocks. The indication, anatomy, Sonoanatomy, and technique for each procedure were also described. We believe that our article is helpful for clinicians to conduct ultrasound-guided injections for controlling thoracic spine and chest wall pain precisely and safely.

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The blind spot and challenges in pain management
Min Cheol Chang
Journal of Yeungnam Medical Science.2022; 39(3): 179. CrossRef

Original article

Effect of in vitro testicular spermatozoa culture on pregnancy outcomes: an experience at a single university hospital: Jisun Lee, Jung Hyeon Yoo, Jae Hun Lee, Hyun Soo Ahn, Kyung Joo Hwang, Miran Kim; Yeungnam Univ J Med. 2021;38(1):53-59. Published online December 9, 2020; DOI: https://doi.org/10.12701/yujm.2020.00773

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Abstract PDF

Background
There are no guidelines for the optimal incubation time or temperature to improve pregnancy outcomes in testicular sperm extraction-intracytoplasmic sperm injection (TESE-ICSI) cycles. We aimed to evaluate whether a 24-hour in vitro culture of testicular spermatozoa affects pregnancy outcomes in TESE-ICSI cycles.
Methods
This was a retrospective study of 83 TESE-ICSI cycles using testicular spermatozoa in 46 couples with male partners suffering from nonobstructive or obstructive azoospermia. Sperm retrieval was performed either on the oocyte retrieval (OR) day (65 cycles in 33 couples; group A) or on the day before OR (18 cycles in 13 couples; group B) followed by in vitro culture for 24 hours. The clinical characteristics and pregnancy outcomes, including the number of retrieved oocytes, fertilization rates, embryo transfer rates, implantation and clinical pregnancy rates, were compared between the two groups.
Results
There were no differences in terms of clinical characteristics except for the levels of luteinizing hormone (LH) in males. Group B had higher LH levels than group A (4.56±1.24 IU/L vs. 3.67±1.07 IU/L, p=0.017). Group B showed higher fertilization rate (72.4±32.1% vs. 59.2±21.7%, p=0.045), implantation rate (35.0±34.1% vs. 14.0±21.5%, p=010), pregnancy rate per cycle (80% vs. 39%, p=0.033), and clinical pregnancy rate per cycle (80% vs. 37.5%, p=0.024) than those of group A.
Conclusion
Testicular sperm retrieval performed on the day before OR followed by in vitro culture can potentially improve pregnancy outcomes.

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Intelligent Medicine on the Regulation Effect of Weekend Catch-Up Sleep on the Relationship Between Hypertension and All-Cause Mortality
Hui Li, Min Yang, Yanchun Bao
International Journal of Computational Intelligence Systems.2023;[Epub] CrossRef
Extend the Survival of Human Sperm In Vitro in Non-Freezing Conditions: Damage Mechanisms, Preservation Technologies, and Clinical Applications
Qingyuan Cheng, Liman Li, Min Jiang, Bo Liu, Yang Xian, Shasha Liu, Xiao Liu, Wenrui Zhao, Fuping Li
Cells.2022; 11(18): 2845. CrossRef

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