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Benzodiazepine and Z-drug Prescribing for Elderly People in a General Hospital: A Complete Audit Cycle

Published online by Cambridge University Press:  13 June 2014

Catherine Dolan ,
Sami Omer ,
Deirdre Glynn ,
Michelle Corcoran  and
Geraldine McCarthy
Catherine Dolan*
Affiliation:
Sligo General Hospital.The Mall, Sligo, Ireland
Sami Omer
Affiliation:
Department of Old Age Psychiatry, Liscarney House, Pearse Road, Sligo, Ireland
Deirdre Glynn
Affiliation:
Sligo General Hospital.The Mall, Sligo, Ireland.
Michelle Corcoran
Affiliation:
Sligo General Hospital.The Mall, Sligo, Ireland.
Geraldine McCarthy
Affiliation:
Department of Old Age Psychiatry, Liscarney House, Pearse Road, Sligo, Ireland.
*
*Correspondence Email catherine.dolan1@hotmail.com
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Abstract

Background: Use of benzodiazepines and Z-drugs in the elderly is associated with adverse outcomes such as increased risk of falls and fractures and cognitive impairment. We aimed to assess the prescribing practice of benzodiazepine and Z-drugs in those aged over 65 years in a general hospital against evidence based standards and to examine the effects of multidisciplinary feedback, as well as determine the prevalence of usage.

Methods: All case-notes and medication charts of patients over the age of sixty five on surgical and medical wards in Sligo General Hospital (SGH) were retrieved and analysed over a two-day period in 2008. Data was collected in relation to benzodiazepine and Z-drug prescribing. We followed up on this initial data collection by screening discharge summaries at six weeks to assess benzodiazepine and Z-drug prescribing on discharge. Audit results were disseminated together with consensus guidelines on the prescribing of these medications in older adult population to all general practitioners in County Sligo. Educational sessions were held for both doctors and nurses in SGH. The audit cycle was completed by a re-audit of benzodiazepine and Z-drug prescribing six months from original study using identical methods.

Results: We found a high prevalence of benzodiazepine and Z-drug use in original audit, 54% (38/70) of the group audited. The prevalence fell to 46% (32/70) at the re-audit post intervention. This result was not statistically significant. The percentage of patients commenced on benzodiazepine and Z-drugs prior to admission fell from 36% (25/70) at the initial audit to 23% (16/70) at the re-audit.

Conclusion: Prescribing practices were not in keeping with consensus guidelines as highlighted by this relatively basic audit cycle. Multidisciplinary feedback and letters to GPs resulted in some reduction in the number of patients prescribed benzodiazepines and Z-drugs. Ongoing educational strategies aimed at relevant health care workers with regular audit of medication use within the general hospital setting is pertinent to further improve prescribing practice.

Type
Clinical Audit
Information
Irish Journal of Psychological Medicine , Volume 29 , Issue 2 , 2012 , pp. 128 - 131
Copyright
Copyright © Cambridge University Press 2012

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