Mortality following cataract surgery in patients taking warfarin

Authors

  • Philip TH Lam Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
  • Vishal Jhanji Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
  • Allie Lee Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
  • Frank WK Chan School of Public Health, The Chinese University of Hong Kong, Hong Kong SAR, China
  • Stanley CC Chi Hospital Authority Ophthalmic Service, Hong Kong Eye Hospital, Hong Kong SAR, China
  • Dennis SC Lam Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China

Abstract

Aims: To study the long-term survival of warfarin users after cataract surgery.

Methods: This retrospective study involved 200 consecutive patients taking warfarin and 129 patients who had phacoemulsification at the same surgical sessions between January 2001 and December 2006. Their clinical characteristics and survival were retrieved from the hospital medical records and the electronic Patient Record of the Hospital Authority, Hong Kong. Standardized mortality ratios were computed and survival after cataract surgery was compared using the log rank test.

Results: Patients taking warfarin had shorter survival after cataract surgery (log rank test, p < 0.001); their standardized mortality ratios being 1.95 (95% confidence interval, 1.56 - 2.44). Survival in both groups appeared similar in the initial 2 years postoperatively, but a difference emerged thereafter. No difference in the causes of death was detected in the two groups (p = 0.33).

Conclusions: Patients taking warfarin had shorter survival after cataract surgery. This was likely an effect due to selection of healthier patients for surgery.

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Published

2012-12-01

How to Cite

1.
Lam PT, Jhanji V, Lee A, Chan FW, Chi SC, Lam DS. Mortality following cataract surgery in patients taking warfarin. Hong Kong J Ophthalmol [Internet]. 2012Dec.1 [cited 2024May21];16(1):19-23. Available from: https://hkjo.hk/index.php/hkjo/article/view/11

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