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An electronic prescribing system can ensure thromboprophylaxis is considered

Ela Stachow, Michael Berry and Andy Johnston
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DOI: https://doi.org/10.7861/clinmedicine.11-6-633
Clin Med December 2011
Ela Stachow
Department of Medicine, Queen Elizabeth Hospital, Birmingham
Roles: Foundation year 1, critical care
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Michael Berry
Department of Medicine, Queen Elizabeth Hospital, Birmingham
Roles: Consultant in respiratory medicine and honorary senior lecturer
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Andy Johnston
Department of Medicine, Queen Elizabeth Hospital, Birmingham
Roles: Consultant in respiratory medicine and critical care
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According to National Institute for Health and Clinical Excellence (NICE) guidelines, all inpatients should have their risk of deep vein thrombosis assessed when they are admitted to hospital1 but adherence to this recommendation is poor.2 Electronic prescribing systems can dramatically reduce drug errors.3 This investigation explored whether these systems can effectively prompt consideration of thromboprophylaxis.

A retrospective audit of 18,326 consecutive acute medical admissions to Queen Elizabeth Hospital, Birmingham from March 2009 to September 2010, identified using the Birmingham Systems Prescribing Information and Communication System (PICS), was conducted. The PICS system mandates that the admitting doctor explicitly considers the need for pharmacologic thromboprophylaxis with low molecular weight heparin (LMWH) and records the decision this doctor has made, although this decision can be deferred. The audit criteria were that within 24 hours of admission all medical patients should be assessed for thromboprophylaxis. When there were no contraindications, LMWH should be prescribed within 24 hours and, when prescribed, it should be given within 24 hours. It was hoped that 90% adherence to this standard should be achieved. A previous audit carried out in 2008 by another group within the hospital at the inception of the PICS system showed 75% compliance with thrombosis assessment, with adherence rising rapidly with time.4

Of patients, 99.7% were assessed for venous thromboembolism risk within 24 hours of admission. Of those deemed to require thromboprophylaxis, 73.9% were prescribed LMWH within the same time period; 58.3% received their first dose within 24 hours of admission. Reasons for delay in the administration of LMWH appear to include the admitting doctor waiting for confirmation from more senior colleagues on the next ward round, and prescribing LMWH at a future date rather than immediately.

There are some constraints to this study. The audit focused on the timing of risk assessment and delivery of thromboprophylaxis, rather than its necessity and appropriateness. A small number of admissions may not have been added to the PICS system, and hence would not have been included in the study. Finally, the time of admission of patients onto the PICS system may not correlate precisely with the time of true admission as a result of delays in patient clerking.

Large studies have demonstrated that the use of electronic systems to prompt the use of thromboprophylaxis can reduce the risk of thromboembolism by as much as 40%.5 This study has shown that an electronic prescribing system can ensure that pharmacologic thromboprophylaxis is considered in a very high proportion of patients in a timely manner. Further work is necessary to improve the administration of prophylaxis within the first 24 hours of admission.

Footnotes

  • Letters not directly related to articles published in Clinical Medicine and presenting unpublished original data should be submitted for publication in this section. Clinical and scientific letters should not exceed 500 words and may include one table and up to five references.

  • © 2011 Royal College of Physicians

References

  1. ↵
    1. National Institute for Health and Clinical Excellence
    (2010) Venous thromboembolism: reducing the risk (NICE, London).
  2. ↵
    1. House of Commons Health Committee
    (2005) Second Report of Session 2004–05, The prevention of venous thromboembolism in hospitalised patients (The Stationery Office, London).
  3. ↵
    1. Ammenwerth E,
    2. Schnell-Inderst P,
    3. Machan C,
    4. Siebert U
    The effect of electronic prescribing on medication errors and adverse drug events: a systematic review J Am Med Inform Assoc 2008 15 585–600doi:10.1197/jamia.M2667
    OpenUrlAbstract/FREE Full Text
  4. ↵
    1. National Institute for Health and Clinical Excellence
    (2009) Implementing NICE guidance: implementation of an electronic risk assessment tool with rule based recommendations for prevention of hospital acquired venous thromboembolism (NICE, London).
  5. ↵
    1. Kucher N,
    2. Koo S,
    3. Quiroz R,
    4. et al.
    Electronic alerts to prevent venous thromboembolism among hospitalized patients New Engl J Med 2005 352 969–77
    OpenUrlCrossRefPubMed
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An electronic prescribing system can ensure thromboprophylaxis is considered
Ela Stachow, Michael Berry, Andy Johnston
Clinical Medicine Dec 2011, 11 (6) 633; DOI: 10.7861/clinmedicine.11-6-633

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An electronic prescribing system can ensure thromboprophylaxis is considered
Ela Stachow, Michael Berry, Andy Johnston
Clinical Medicine Dec 2011, 11 (6) 633; DOI: 10.7861/clinmedicine.11-6-633
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