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Postherpetic neuralgia (PHN) is the most common clinical complication of herpes zoster. PHN can persist for months to years, and in some cases, the pain may last for more than five years. Patients suffering from severe, prolonged pain endure significant distress, which seriously affects their quality of life and daily activities. Moreover, PHN can lead to insomnia, anxiety, depression, or even suicide. Currently, the treatment of PHN primarily focuses on pain management. First-line treatment options include gabapentin, pregabalin, tricyclic antidepressants, and 5% lidocaine patches.
Acupuncture is a widely used non-pharmacological therapy. A large number of clinical trials have demonstrated its effectiveness in treating various neuropathic pain conditions, including PHN. Acupuncture not only reduces pain perception but also alleviates anxiety and improves the quality of life for PHN patients. Among different acupuncture techniques, Warm Acupuncture (WA) is considered the most effective for treating peripheral neuropathic pain. Clinical case reports have also shown its pain-relieving effects in PHN patients.
However, there has been no study in Vietnam on the effectiveness of WA in pain reduction for patients with PHN. Therefore, this study is conducted to evaluate whether WA is effective in reducing pain and ensuring safety for treating PHN patients with Qi Stagnation and Blood Stasis syndrome. The findings will serve as a basis for the broader application of WA in the treatment of PHN.
Patients with Postherpetic neuralgia in the trunk area, belonging to the Blood Stasis syndrome. They will be treated with a combination of Warm Acupuncture and Gabapentin.
The intervention period is four weeks. Warm Acupuncture will be performed five times a week and Gabapentin is administered daily for 4 weeks.
Data on the Visual Analog Scale (VAS), and side effects of Warm Acupuncture and Gabapentin will be recorded before the study and weekly for 4 weeks.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Study Group | Experimental | The study group used gabapentin 300mg per tablet, twice a day, for a treatment period of 4 weeks, combined with Warm acupuncture at the Ashi point, EX-B2, LI4, TE6, PC5 and SP6, five times a week for 4 weeks. |
|
| Control Group | Active Comparator | The control group used gabapentin 300mg per tablet, twice a day, for a treatment period of 4 weeks |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Warm acupuncture and Gabapentin | Other | This group used gabapentin 300mg per tablet, twice a day, for a treatment period of 4 weeks, combined with warm acupuncture at the Ashi point, EX-B2, LI4, TE6, PC5 and SP6, five times a week for 4 weeks. |
| Measure | Description | Time Frame |
|---|---|---|
| The change of the Visual Analog Scale (VAS) | Pain will be measured using the Visual Analog Scale (VAS). Patients will be asked to circle a number from 0 to 10, where 0 represents "no pain" and 10 represents "the worst possible pain. | Assessments were conducted before intervention and after each intervention week throughout the four weeks (Week 0, Week 1, Week 2, Week 3, Week 4) |
| Measure | Description | Time Frame |
|---|---|---|
| Proportion of intervention-related adverse events | While Warm acupuncture is generally considered safe, some patients may experience minor side effects at the application site. Studies on Warm Acupuncture have reported negligible adverse effects. The recorded adverse effects include burns, pain at the acupuncture site, and bleeding at the acupuncture site. The study will closely monitor and document any unexpected adverse events associated with the procedure. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Quyen Le Bao Nguyen | Contact | +84981864951 | baoquyen2397@gmail.com |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26495023 | Background | Zhao H, Nie W, Sun Y, Li S, Yang S, Meng F, Zhang L, Wang F, Huang S. Warm Needling Therapy and Acupuncture at Meridian-Sinew Sites Based on the Meridian-Sinew Theory: Hemiplegic Shoulder Pain. Evid Based Complement Alternat Med. 2015;2015:694973. doi: 10.1155/2015/694973. Epub 2015 Oct 1. | |
| 26378088 | Background |
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| ID | Term |
|---|---|
| D051474 | Neuralgia, Postherpetic |
| ID | Term |
|---|---|
| D009437 | Neuralgia |
| D010523 | Peripheral Nervous System Diseases |
| D009468 | Neuromuscular Diseases |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D000077206 | Gabapentin |
| ID | Term |
|---|---|
| D000588 | Amines |
| D009930 | Organic Chemicals |
| D005680 | gamma-Aminobutyric Acid |
| D000613 | Aminobutyrates |
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| Gabapentin | Drug | This group used gabapentin 300mg per tablet, twice a day, for a treatment period of 4 weeks |
|
| Up to four weeks |
| Li X, Han Y, Cui J, Yuan P, Di Z, Li L. Efficacy of Warm Needle Moxibustion on Lumbar Disc Herniation: A Meta-Analysis. J Evid Based Complementary Altern Med. 2016 Oct;21(4):311-9. doi: 10.1177/2156587215605419. Epub 2015 Sep 15. |
| 32227773 | Background | Wang L, Qiu L, Zheng X, Ouyang J, Zhang M, He L, Zeng S, Liu B, Peng J. Effectiveness of electroacupuncture at Jiaji acupoints (EX-B2), plus moxibustion and intermediate on postherpetic neuralgia: a randomized controlled trial. J Tradit Chin Med. 2020 Feb;40(1):121-127. |
| 31410050 | Background | Pei W, Zeng J, Lu L, Lin G, Ruan J. Is acupuncture an effective postherpetic neuralgia treatment? A systematic review and meta-analysis. J Pain Res. 2019 Jul 16;12:2155-2165. doi: 10.2147/JPR.S199950. eCollection 2019. |
| 35341147 | Background | Zhao W, Huang H, Liu K, Wang S, Lin S, Long W, Li L, Zeng J, Lin G. Acupuncture and Moxibustion for Peripheral Neuropathic Pain: A Frequentist Network Meta-Analysis and Cost-Effectiveness Evaluation. Evid Based Complement Alternat Med. 2022 Mar 16;2022:6886465. doi: 10.1155/2022/6886465. eCollection 2022. |
| 36034938 | Background | He K, Hu R, Huang Y, Qiu B, Chen Q, Ma R. Effects of Acupuncture on Neuropathic Pain Induced by Spinal Cord Injury: A Systematic Review and Meta-Analysis. Evid Based Complement Alternat Med. 2022 Aug 19;2022:6297484. doi: 10.1155/2022/6297484. eCollection 2022. |
| 25317872 | Background | Johnson RW, Rice AS. Clinical practice. Postherpetic neuralgia. N Engl J Med. 2014 Oct 16;371(16):1526-33. doi: 10.1056/NEJMcp1403062. No abstract available. |
| 31151330 | Background | Lin CS, Lin YC, Lao HC, Chen CC. Interventional Treatments for Postherpetic Neuralgia: A Systematic Review. Pain Physician. 2019 May;22(3):209-228. |
| 30069477 | Background | Zhang M, Gao CX, Ma KT, Li L, Dai ZG, Wang S, Si JQ. A Meta-Analysis of Therapeutic Efficacy and Safety of Gabapentin in the Treatment of Postherpetic Neuralgia from Randomized Controlled Trials. Biomed Res Int. 2018 Jul 4;2018:7474207. doi: 10.1155/2018/7474207. eCollection 2018. |
| 33326962 | Background | Du J, Sun G, Ma H, Xiang P, Guo Y, Deng Y, Li S, Li X. Prevalence and Risk Factors of Anxiety and Depression in Patients with Postherpetic Neuralgia: A Retrospective Study. Dermatology. 2021;237(6):891-895. doi: 10.1159/000512190. Epub 2020 Dec 16. |
| 32253903 | Background | Putri Mellaratna W, Jusuf NK, Yosi A. The impact of pain intensity on quality of life of postherpetic neuralgia patients. Med Glas (Zenica). 2020 Aug 1;17(2):439-444. doi: 10.17392/1111-20. |
| 31218562 | Background | Yang F, Yu S, Fan B, Liu Y, Chen YX, Kudel I, Concialdi K, DiBonaventura M, Hopps M, Hlavacek P, Cappelleri JC, Sadosky A, Parsons B, Udall M. The Epidemiology of Herpes Zoster and Postherpetic Neuralgia in China: Results from a Cross-Sectional Study. Pain Ther. 2019 Dec;8(2):249-259. doi: 10.1007/s40122-019-0127-z. Epub 2019 Jun 19. |
| 18528318 | Background | Harpaz R, Ortega-Sanchez IR, Seward JF; Advisory Committee on Immunization Practices (ACIP) Centers for Disease Control and Prevention (CDC). Prevention of herpes zoster: recommendations of the Advisory Committee on Immunization Practices (ACIP). MMWR Recomm Rep. 2008 Jun 6;57(RR-5):1-30; quiz CE2-4. |
| 19944790 | Background | Lin YH, Huang LM, Chang IS, Tsai FY, Lu CY, Shao PL, Chang LY; Varicella-Zoster Working Group; Advisory Committee on Immunization Practices, Taiwan. Disease burden and epidemiology of herpes zoster in pre-vaccine Taiwan. Vaccine. 2010 Feb 3;28(5):1217-20. doi: 10.1016/j.vaccine.2009.11.029. Epub 2009 Nov 26. |
| 28298208 | Background | Chen LK, Arai H, Chen LY, Chou MY, Djauzi S, Dong B, Kojima T, Kwon KT, Leong HN, Leung EM, Liang CK, Liu X, Mathai D, Pan JY, Peng LN, Poblete ER, Poi PJ, Reid S, Tantawichien T, Won CW. Looking back to move forward: a twenty-year audit of herpes zoster in Asia-Pacific. BMC Infect Dis. 2017 Mar 15;17(1):213. doi: 10.1186/s12879-017-2198-y. |
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D002087 |
| Butyrates |
| D000144 | Acids, Acyclic |
| D002264 | Carboxylic Acids |
| D003509 | Cyclohexanecarboxylic Acids |
| D000146 | Acids, Carbocyclic |
| D003510 | Cyclohexanes |
| D003516 | Cycloparaffins |
| D006840 | Hydrocarbons, Alicyclic |
| D006844 | Hydrocarbons, Cyclic |
| D006838 | Hydrocarbons |
| D000596 | Amino Acids |
| D000602 | Amino Acids, Peptides, and Proteins |