defining drp and medication errors and their … ws1 report.pdf · pcne drp symposium 02-11-2009...
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DEFINING DRP AND MEDICATION ERRORS AND THEIR RELATIONSHIP PCNE WORKING SYMPOSIUM ON DRP 2009 WORKSHOP 1
Facilitators: Kurt Hersberger, Nina Griese [email protected]
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Aim of the workshop
What are valid definitions for medication
errors (ME)?
PCNE definition for ME ?
What is the difference between DRP and ME,
what are overlaps?
Future: scientific article 02-11-2009 PCNE DRP Symposium 3
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02-11-2009 PCNE DRP Symposium
The processes in drug use •Prescribing •Dispensing •Use
No error but not the desired outcome
•Something wrong in the process Medication Error
Error but no (potential) impact on outcome
(Potential) impact on outcome •Drug-related problem
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Foppe van Mil, PCNE working symposium
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Drug-related problem
Medication error (= human cause)
• Prescribing error • Dispensing error • Administration/
drug use error
No problem
Adverse drug event (= drug cause)
Potential Manifest Adverse drug reaction Ineffectiveness Toxic reaction
•Drug-drug interaction •Drug-food interaction •Dose too low •Dose too high •Wrong drug selected etc.
• Adherence problem • Wrong timing etc.
Foppe van Mil, PCNE working symposium
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Error
Unintended act or an act that does not achieve its intended effect. (Leape LL. Am J Health Syst Pharm 52, 1995, 379-382)
Failure of planned actions to achieve their desired ends – without the intervention of some unforeseeable events. (Reason 1997: see Glossary of terms, Council of Europe)
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Medication error 1
Any preventable event that may cause or lead to inappropriate medication use or patient harm while medication is in the control of a health care professional, patient, or consumer.
(National Coordinating Council for Medication Error Reporting and Prevention, NCC MERP, USA)
More process oriented – patients included
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Medication error 2
A medication error is any error in the process of prescribing, dispensing, or administering a drug, whether there are any adverse consequences or not.
(Leape LL. Am J Health Syst Pharm 52, 1995, 379-382)
More process oriented – patients not mentioned
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Medication error 3
Medication Errors
Links Errors in prescribing, dispensing, or administering medication with the result that the patient fails to receive the correct drug or the indicated proper drug dosage.
Pubmed - MeSH
Year introduced: 1967(1966)
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Relationship between ME, ADE, ADR
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Adverse drug reaction (ADR)
A response to a medical product which is noxious and unintended and which occurs at doses normally used in man for the prophylaxis, diagnosis or therapy of diseases etc. (Council of Europe)
Non-preventable ADE due to side effects or allergic reactions (e.g. cough due to an ACE-inhibitor)
(Morimoto et al, Qual Saf Health Care 2004)
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Adverse drug event (ADE)
An injury occurring during the patient‘s drug therapy and resulting either from appropriate care, or from unsuitable or suboptimal care. ADE include: the ADR during normal use of the medicine, and any harm secondary to a medication error, both errors of omission or commission. (Council of Europe)
An injury that is the result of an error at any stage in the medication use or an injury of which the severity or duration could have been reduced if different actions had been taken (ameliorable). (Morimoto et al, Qual Saf Health Care 2004)
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04-11-09 ESCP workshop Geneva
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According to Morimoto et al, Qual Saf Health Care 2004
Medication errors
Preventable
Adverse drug reaction ADR
ADEs
Potential ADEs
Relationship between ME, ADE, ADR
Preven-table ADE
Non-preventable
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Krähenbühl A et al. Drug Safety 2007; 30 (5): 379-407
DRP can be illustrated by the intersections of three circles representing ME, ADE and ADR. MR include every mistake in the medication process (prescribing, dispensing, administering of drugs). Only a minority of the MR result in an ADR or an ADE. ADE represent any injury related to the use of a drug, even if this relationship has not been proven to be causal?? (AE). ADR are noxious responses to a drug which are unintended and which occur at normally used doses of this drug. ADR are either predictable (and therefore mostly avoidable??; type A reactions), or unpredictable (idiosyncratic or type B reactions).
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Points of discussions
What are differences between both figures?
Are all errors preventable?
Is an error an error, whether there are any adverse consequences or not?
Are there other causes for ADE than ME and the inherent risk of drugs?
Are all ADR non-preventable?
Are drug use errors medication errors? (Medication errors: patients included?)
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The scenery of Drug Related Problems
02-11-2009 PCNE DRP Symposium
Patient
Behaviour problem
Self-medication problem
Physician
Prescribing problem
Pharmacy
Dispensing problem
Real DRP
Manifest
and influencing outcomes
Potential DRP
Not manifest
but possibly influencing outcomes
non-preventable
Problem
preventable
Problem
Drug RelatedProblems
2 1 3
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Foppe van Mil, PCNE working symposium
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Adopted from N. Barber, ACCP/ESCP-conference 2009
Lack of adherence / knowledge
Errors Adverse drug reaction (ADR)
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Relationship between ME, ADE, ADR and DRP ?
ESCP workshop Geneva
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According to Morimoto et al, Qual Saf Health Care 2004
Medication errors
Preventable
Adverse drug reaction ADR
ADEs
Potential ADEs
Preven-table ADE
Non-preventable
DRP ?
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Medical Error „Errors or mistakes Committed by health professionals which result in harm to the patient.“
Preventable drug related morbidity (PDRM)
Drug Therapy Problem
Drug-Related Problem event or a circumstance involving drug therapy that actually or potentially interferes with desired health
outcomes
Medication Error Errors in prescribing, dispensing, or administering medication with the result that the patient fails to
receive the correct drug or the indicated proper drug dosage.“
Adverse Drug Event (ADE )
ADR
Prof. Dr. K. Hersberger Pharmaceutical Care Basics HS 09
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Points of discussions
Are DRP always caused by errors?
Do all problems have a cause that is related to the prescribing-dispensing process or the patient behaviour? Or Are non-preventable side effects or ADR DRPs?
Are ADE and / or potential ADE DRPs?
Do all errors cause drug-related problems? (Or: Are trivial medication errors DRPs?)
Is unintended non-compliance a DRP and a ME?
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Results of the working group
Definition DRP
Decision for definition ADE
Definition ME
Relationship between ME, ADR, ADE, DRP
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Drug Related Problem
A drug related problem is an individual patient-related issue (event or circumstance) involving drug therapy that actually or potentially interferes with desired health outcomes (PCNE 1999)
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DRP and ADE
DRP: A drug related problem is an individual patient-related issue (event or circumstance) involving drug therapy that actually or potentially interferes with desired health outcomes.
ADE: An injury occurring during the patient‘s drug therapy and resulting either from appropriate care, or from unsuitable or suboptimal care. ADE include: the ADR during normal use of the medicine, and any harm secondary to a medication error, both errors of omission or commission.
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Summary definitions ME
Any preventable event that may cause or lead to inappropriate medication use or patient harm while medication is in the control of a health care professional, patient, or consumer.
A medication error is any error in the process of prescribing, dispensing, or administering a drug, whether there are any adverse consequences or not.
A medication error is a failure in treatment process that leads to or has the potential to lead to harm to the patient.
A medication error is any error occuring in the medication use process (e.g. prescribing, dispensing, administering or monitoring). (assumptions patient included in administering/monitoring and therapy choices included, process of diagnosis not included)
02-11-2009
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PCNE-definition ME
A medication error is any error occuring in the
medication use process (e.g. prescribing,
dispensing, administering or monitoring)
(assumptions patient included in
administering/monitoring and therapy choices
included, process of diagnosis not included).
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Relationship between ME, ADE, ADR
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DRP actually interferes with desired health outcomes
DRP: potentially
interferes with desired health
outcomes
for
DRP
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Relationship between ME, ADE, ADR and DRP
ME
ADE
DRP
Potential for injury
ADR
With injury
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Further discussion
Definition of ADR
Are all ADR non-preventable?
Do all errors cause drug-related problems? (Or: Are trivial medication errors DRPs?)
Is unintended non-compliance a DRP and a ME?
What are ADE not caused by ME or ADR?
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Proof of definition
Check the definitions and terminology by means of the PCNE DRP classification system e.g.:
Side effect suffered (allergic) or (non-allergic)
Inappropriate drug
Drug dose too low
Drug not taken
Potential interaction
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