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Canadian Journal of Surgery logoLink to Canadian Journal of Surgery
. 1999 Oct;42(5):360–362.

Home prophylactic warfarin anticoagulation program after hip and knee arthroplasty

Peter Schuringa 1, David Yen 1,
PMCID: PMC3788901  PMID: 10526520

Abstract

Objective

To determine the efficiency of a program designed to maintain prophylactic oral anticoagulation within a target range for 6 weeks after hip and knee arthroplasty.

Design

A prospective continuous quality improvement indicator.

Setting

A tertiary care university hospital.

Patients

Patients who underwent hip and knee arthroplasty and had no indications for routine anticoagulation other than postoperative thromboembolism prophylaxis.

Intervention

An outpatient warfarin prophylaxis program, which included an information letter given to the patient, Home Care coordinated community laboratory services, communication with and anticoagulant dosage adjustment by the patient’s personal family physician.

Outcome measures

The proportion of international normalized ratio (INR) values within, below and above the target range of 2.0 to 3.0.

Results

Sixty-two patients were enrolled over a 3-month period. On the day of hospital discharge, 64% of patients had INR values that were within the target range, 31% were below and 5% were above. After hospital discharge, 42% of the INR values were within the target range, 48% were below and 10% were above.

Conclusion

Despite a program designed to address patient information, physician communication and laboratory testing, tight control of home INR values could not be achieved with the existing resources of Home Care and family physicians.

Full Text

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Articles from Canadian Journal of Surgery are provided here courtesy of Canadian Medical Association

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