Effects of Transcutaneous Electrical Nerves Stimulation (TENS) on Pain Intensity in Patients with Primary Dysmenorrhea among the Undergraduates of a Nigerian University: A Randomized Control Study

1. William F, Ganong MD. The Female Reproductive System. Review of Medical Physiology. Lange 21st Ed. 2003;437-451. ## 2. Akinbo SR, Onwudimegwu WN, Ajayi GO. Evaluation of the Efficacy of Transcutaneous Electrical Nerve Stimulator (TENS) Compared with Analgesics in the management of primary dysmenorrhea. Journal of Nigeria Medical Rehabilitation Therapist. 2000;5(2):27-30. Nigeria. ## 3. Proctor ML, Hing W, Johnson TC, Murphy PA. Spinal manipulation for primary and secondary dysmenorrhoea. Cochrane Database Syst Rev. 2006;(3):CD002119. doi: 10.1002/14651858.CD002119.pub3. [PubMed: 16855988]. [PubMed Central: PMC6718213]. ## 4. French L. Dysmenorrhea. Am Fam Physician. 2005;71(2):285-91. [PubMed: 15686299]. ## 5. Dawood MY. Dysmenorrhea. J Reprod Med. 1985;30(3):154-67. [PubMed: 3158737]. ## 6. Ng TP, Tan NC, Wansaicheong GK. A prevalence study of dysmenorrhoea in female residents aged 15-54 years in Clementi Town, Singapore. Ann Acad Med Singapore. 1992;21(3):323-7. [PubMed: 1416778]. ## 7. Wilson C, Emans SJ, Mansfield J, Podolsky C, Grace E. The relationships of calculated percent body fat, sports participation, age, and place of residence on menstrual patterns in healthy adolescent girls at an independent New England high school. J Adolesc Health Care. 1984;5(4):248-53. doi: 10.1016/s0197-0070(84)80126-6. [PubMed: 6541639]. ## 8. Abbaspour Z, Rostami M, Najjar Sh. The Effect of Exercise on Primary Dysmenorrhea. J Res Health Sci. 2006;6(1):26-31. ## 9. Klein JR, Litt IF. Epidemiology of adolescent dysmenorrhea. Pediatrics. 1981;68(5):661-4. [PubMed: 7312467]. ## 10. Proctor M, Farquhar C. Diagnosis and management of dysmenorrhoea. BMJ. 2006;332(7550),1134-8. doi: 10.1136/bmj.332.7550.1134. [PubMed: 16690671]. [PubMed Central: PMC1459624]. ## 11. Harlow SD, Park M. A longitudinal study of risk factors for the occurrence, duration and severity of menstrual cramps in a cohort of college women. Br J Obstet Gynaecol. 1996;103(11):1134-42. doi: 10.1111/j.1471-0528.1996.tb09597.x. [PubMed: 8917003]. ## 12. Bello FA, Akinyotu OO, Odubamowo KH. Dysmenorrhea among female students at a Teaching Hospital in South-Western Nigeria. Trop J Obstet Gynaecol. 2017;34(2):129-33. doi: 10.4103/TJOG.TJOG_10_17. ## 13. Loto OM, Adewumi TA, Adewuya AO. Prevalence and correlates of dysmenorrhea among Nigerian college women. Aust N Z J Obstet Gynaecol. 2008;48(4):442-4. doi: 10.1111/j.1479-828X.2008.00869.x. [PubMed: 18837854]. ## 14. Thomas KD, Okonofua FE, Chiboka O. A study of the menstrual patterns of adolescents in Ile-Ife, Nigeria. Int J Gynaecol Obstet. 1990;33(1):31-4. doi: 10.1016/0020-7292(90)90651-z. [PubMed: 1974529]. ## 15. Amu EO, Bamidele JO. Prevalence of menstrual disorders among adolescent girls in Osogbo, South Western Nigeria. Int J Adolesc Med Health. 2014;26(1):101-6. doi: 10.1515/ijamh-2013-0500. [PubMed: 24501153]. ## 16. Andersch B, Milsom I. An epidemiologic study of young women with dysmenorrhea. Am J Obstet Gynecol. 1982;144(6):655-60. doi: 10.1016/0002-9378(82)90433-1. [PubMed: 7137249]. ## 17. Proctor ML, Murphy PA. Herbal and dietary therapies for primary and secondary dysmenorrhea. Cochrane Database Syst Rev. 2001;(3):CD002124. doi: 10.1002/14651858.CD002124. [PubMed: 11687013]. ## 18. McEvoy M, Chang J, Coupey SM. Common menstrual disorders in adolescence nursing interventions. MCN Am J Matern Child Nurs. 2004;29(1):41-9. doi: 10.1097/00005721-200401000-00011. [PubMed: 14734964]. ## 19. Akin M, Price W, Rodriguez G Jr, Erasala G, Hurley G, Smith RP. Continuous low level topical heat compared to acetaminophen for primary dysmenorrhea. J Reprod Med. 2004;49(9):739-45. [PubMed: 15493566]. ## 20. Steiner M, Dunn E, Born L. Hormones and mood: from menarche to menopause and beyond. J Affect Disord. 2003;74(1):67-83. doi: 10.1016/s0165-0327(02)00432-9. [PubMed: 12646300]. ## 21. Marjoribanks J, Proctor ML, Farquhar C. Nonsteroidal anti-inflammatory drugs for primary dysmenorrhoea. Cochrane Database Syst Rev. 2003;(4):CD001751. doi: 10.1002/14651858.CD001751. [PubMed: 14583938]. ## 22. Martin VT, Ballard J, Diamond MP, Mannix LK, Derosier FJ, Lener SE, et al. Relief of menstrual symptoms and migraine with a single-tablet formulation of sumatriptan and naproxen sodium. J Womens Health. 2014;23(5):389-96. doi: 10.1089/jwh.2013.4577. [PubMed: 24579886]. [PubMed Central: PMC4011418]. ## 23. Mannix LK, Martin VT, Cady RK, Diamond ML, Lener SE, White JD, et al. Combination treatment for menstrual migraine and dysmenorrhea using sumatriptan-naproxen: two randomized controlled trials. Obstet Gynecol. 2009;114(1):106-13. doi: 10.1097/AOG.0b013e3181a98e4d. [PubMed: 19546766]. ## 24. Oladosu FA, Tu FF, Hellman KM. Nonsteroidal anti-inflammatory drug resistance in dysmenorrhea: epidemiology, causes, and treatment. Am J Obstet Gynecol. 2018;218(4):390-400. doi: 10.1016/j.ajog.2017.08.108. [PubMed: 28888592]. [PubMed Central: PMC5839921]. ## 25. Robertson V, Spurritt D. Electrophysical agents: Implications of their availability and use in undergraduate clinical placements. Physiotherapy. 1998;84:335-44. ## 26. Watson T. Transcutaneous Electrical Nerve Stimulation [Internet]. Available from: www.electrotherapy.org. ## 27. Eng J. Sample Size Estimation: How many individuals should be studied? Radiology. 2003;227(2):309-13. doi: 10.1148/radiol.2272012051. [PubMed: 12732691]. ## 28. Williamson A, Hoggart B. Pain: a review of three commonly used pain rating scales. J Clin Nurs. 2005;14(7):798-804. doi: 10.1111/j.1365-2702.2005.01121.x. [PubMed: 16000093]. ## 29. Kaplan B, Rabinerson D, Pardo J, Krieser RU, Neri A. Transcutaneous electrical nerve stimulation (TENS) as a pain-relief device in obstetrics and gynecology. Clin Exp Obstet Gynecol. 1997;24(3):123-6. [PubMed: 9478293]. ## 30. Bai HY, Bai HY, Yang ZQ. Effect of transcutaneous electrical nerve stimulation therapy for the treatment of primary dysmenorrheal. Medicine. 2017;96(36):e7959. doi: 10.1097/MD.0000000000007959. [PubMed: 28885348]. [PubMed Central: PMC6392990]. ## 31. Lundeberg T, Bondesson L, Lundström V. Relief of primary dysmenorrhea by transcutaneous electrical nerve stimulation. Acta Obstet Gynecol Scand. 1985;64(6):491-7. doi: 10.3109/00016348509156727. [PubMed: 3904321]. ## 32. Lewers D, Clelland JA, Jackson JR, Varner RE, Bergman J. Transcutaneous electrical nerve stimulation in the relief of primary dysmenorrhoea. Phys Ther. 1989;69(1):3-9. doi: 10.1093/ptj/69.1.3. [PubMed: 2783493]. ## 33. Tugay N1, Akbayrak T, Demirtürk F, Karakaya IC, Kocaacar O, Tugay U, et al. Effectiveness of transcutaneous electrical nerve stimulation and interferential current in primary dysmenorrhea. Pain Med. 2007;8(4):295-300. doi: 10.1111/j.1526-4637.2007.00308.x. [PubMed: 17610451]. ## 34. Charlton J. Core Curriculum for Professional Education in Pain. 3rd ed. Seattle: IASP Press; 2005. p. 93-96. ## 35. Johnson MI. Transcutaneous Electrical Nerve Stimulation. In: Kitchen S, editors. Electrotherapy: Evidence- Based Practice. Edinburgh: Churchill Livingstone; 2002. p. 259-286. ## 36. Sluka KA, Walsh D. Transcutaneous electrical nerve stimulation: basic science mechanisms and clinical effectiveness. J Pain. 2003;4(3):109-21. doi: 10.1054/jpai.2003.434. [PubMed: 14622708]. ## 37. Dawood MY, Ramos J. Transcutaneous electrical nerve stimulation (TENS) for the treatment of primary dysmenorrhea: a randomized crossover comparison with placebo TENS and ibuprofen. Obstet Gynecol. 1990;75(4):656-60. [PubMed: 2179780]. ## 38. Finniss DG, Benedetti F. Mechanisms of the placebo response and their impact on clinical trials and clinical practice. Pain. 2005;114(1-2):3-6. doi: 10.1016/j.pain.2004.12.012. [PubMed: 15733625]. ## 39. Smith RP, Heltzel JA. Interrelation of analgesia and uterine activity in women with primary dysmenorrhea. A preliminary report. J Reprod Med. 1991;36(4):260-4. [PubMed: 2072357]. ##