Ocular surgery on patients receiving long-term warfarin therapy

Area of Science:

• Ophthalmology
• Cardiology
• Pharmacology

Background:

• Long-term warfarin sodium therapy is common for preventing thromboembolic events.
• Ocular surgery presents a risk of bleeding complications.
• The management of warfarin in patients undergoing surgery requires careful consideration.

Purpose of the Study:

• To compare the incidence of hemorrhagic and thrombotic complications in patients undergoing ocular surgery.
• To evaluate the safety of continuing or discontinuing warfarin sodium therapy during the perioperative period.

Main Methods:

• Retrospective analysis of 50 patients on long-term warfarin sodium therapy who had ocular surgery.
• Comparison of complication rates between three groups: warfarin continued, warfarin discontinued, and matched controls.
• Statistical analysis to determine the significance of observed differences.

Main Results:

• The warfarin-treated group experienced six perioperative hemorrhagic complications (12%), significantly higher than the control group (P < .03).
• No significant difference in hemorrhagic complications was found between patients who continued warfarin and those who discontinued it.
• No thrombotic complications were explicitly mentioned in the provided abstract text.

Conclusions:

• Continuing warfarin sodium therapy during ocular surgery was associated with an increased risk of perioperative hemorrhage compared to controls.
• Discontinuing warfarin perioperatively did not significantly alter the risk of hemorrhagic complications compared to continuing therapy.
• These findings suggest a need for careful risk-benefit assessment when managing warfarin in patients undergoing ocular surgery.