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Complementary medicine
Research
Risk of epilepsy in stroke patients receiving acupuncture treatment: a nationwide retrospective matched-cohort study
  1. Shu-Wen Weng1,2,
  2. Chien-Chang Liao1,3,4,5,
  3. Chun-Chieh Yeh6,7,
  4. Ta-Liang Chen3,4,5,
  5. Hsin-Long Lane8,
  6. Jaung-Geng Lin1,9,
  7. Chun-Chuan Shih8,10
  1. 1Graduate Institute of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
  2. 2Department of Chinese Medicine, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
  3. 3Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan
  4. 4Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
  5. 5Health Policy Research Center, Taipei Medical University Hospital, Taipei, Taiwan
  6. 6Department of Surgery, China Medical University Hospital, Taichung, Taiwan
  7. 7Department of Surgery, University of Illinois, Chicago, Illinois, USA
  8. 8School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung City, Taiwan
  9. 9Department of Healthcare Administration, Asia University, Taichung, Taiwan
  10. 10Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
  1. Correspondence to Dr Chun-Chuan Shih; hwathai{at}seed.net.tw, hwathai885{at}gmail.com, hwathai885{at}isu.edu.tw

Abstract

Objective To investigate the risk of epilepsy in stroke patients receiving and not receiving acupuncture treatment.

Design Retrospective cohort study.

Setting This study was based on Taiwan's National Health Insurance Research Database that included information on stroke patients hospitalised between 1 January 2000 and 31 December 2004.

Participants We identified 42 040 patients hospitalised with newly diagnosed stroke who were aged 20 years and above.

Primary and secondary outcome measures We compared incident epilepsy during the follow-up period until the end of 2009 in stroke patients who were and were not receiving acupuncture. The adjusted HRs and 95% CIs of epilepsy associated with acupuncture were calculated using multivariate Cox proportional hazard regression.

Results Stroke patients who received acupuncture treatment (9.8 per 1000 person-years) experienced a reduced incidence of epilepsy compared to those who did not receive acupuncture treatment (11.5 per 1000 person-years), with an HR of 0.74 (95% CI 0.68 to 0.80) after adjustment for sociodemographic factors and coexisting medical conditions. Acupuncture treatment was associated with a decreased risk of epilepsy, particularly among stroke patients aged 20–69 years. The log-rank test probability curve indicated that stroke patients receiving acupuncture treatment had a reduced probability of epilepsy compared with individuals who did not receive acupuncture treatment during the follow-up period (p<0.0001).

Conclusions Stroke patients who received acupuncture treatment had a reduced risk of epilepsy compared with those not receiving acupuncture treatment. However, the protective effects associated with acupuncture treatment require further validation in prospective cohort studies.

  • Acupuncture

This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 4.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly cited. See: http://creativecommons.org/licenses/by/4.0/

https://doi.org/10.1136/bmjopen-2015-010539

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