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Pharmacy World and Science

, Volume 26, Issue 4, pp 232–237 | Cite as

Evaluation of warfarin dosing by pharmacists for elderly medical in-patients

  • Naomi Burns
Article

Abstract

Setting: Brighton and Sussex University Hospitals NHS Trust (BSUH).

Method: Two wards at Brighton General Hospital were under pharmacist-control of warfarin dosing and three wards remained under the care of doctors. Data was collected for 11 months and a total of 33 patients were recruited into each arm.

Results: Pharmacists prescribed more appropriate loading and maintenance doses (according to the Trust’s Prescribing Guidelines) compared to doctors. This resulted in more patients reaching their target INR sooner. Documentation of indication, duration of treatment and target INR was also much improved compared to medical staff. However, more patients (73%) in the doctors’ group were within range on discharge and at the out-patient clinic (79%), compared to the pharmacists (68% & 61% respectively). This could not be explained entirely. Significantly fewer patients dosed by pharmacists had episodes of over or under anti-coagulation (91% vs 67%) and fewer INR tests were requested (2.3/patient/week) compared to those dosed by doctors (2.7).

Patients under the control of pharmacists also had fewer adverse events (6% vs 12%). One major GI bleed occurred in the doctors’ group.

Conclusion: Pharmacist dosing of warfarin for in-patients had a beneficial effect on most aspects of anti- coagulation control. This study therefore provides further evidence to support the extended role pharmacists can play with the benefit of reducing risk, junior doctors’ hours and improving patient care.

Anti-coagulation Effectiveness Evaluation Guideline adherence In-patients Pharmacist prescribing United Kingdom Warfarin 

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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Naomi Burns
    • 1
  1. 1.Clinical Pharmacy Services ManagerBrighton General HospitalBrightonUK

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