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PHARMACEUTICAL ALGORITHMS TO PERFORM MEDICATION PHARMACEUTICAL ANALYSIS (submitted in 2019)

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European Statement

Patient Safety and Quality Assurance

Author(s)

Arnaud Potier, Béatrice Demoré, Alexandre Dony, Emmanuelle Divoux, Emmanuelle Boschetti, Laure-Anne Arnoux, Cédric Dupont, Jean-Christophe Calvo, David Piney, Virginie Chopard, Nathalie Cretin, Edith Dufay

Why was it done?

Drug iatrogenia costs global health systems $52 billion annually. The third global patient safety challenge aims at reducing the global burden of iatrogenic medication-related harm by 50% within 5 years [1]. Pharmaceutical analysis is a fundamental activity, a regulatory obligation in many countries but remains a challenge. This practice is highly variable. A graphic definition of the target pharmaceutical analysis has been formalised in December 2017 which sets the basis for its digitalisation, effectively implemented since January 2019. The aim is to build a corpus of the most relevant PA to facilitate clinical pharmacist practice.

What was done?

A computerised clinical pharmacy tool is integrated into the health information system of our group of hospitals (5000 beds) to promote efficiency of pharmaceutical analysis in order to improve patient safety. Pharmaceutical algorithms (PA) are conceptualised to improve drug related problems (DRP) detection and their resolution through pharmaceutical intervention (PI) according to a defined conduct to be held: anamnesis of subjective and objective elements of appreciation, DRP characterisation and PI transmission. Pharmaceutical analysis is performed by the use of PharmaClass® (Keenturtle). This software has been interfaced with 5 health data flow of two health facilities (1000 of the 2000 beds were tested): identity and patient flow, medication data, laboratory results examination, medical history, physiological constants. PA are partially encoded as rules in Pharmaclass® that issues alerts analysed by a pharmacist.

How was it done?

Health data are lacking of semantic interoperability which Pharmaclass® aims at overcoming from Electronical health record (EHR) queries in real time. A corpus of PA has been structured integrating the conduct to be held. PA were created by modeling the pharmaceutical experiment with the thread of criticality. PA were validated by consensus.

What has been achieved?

80 PA were encoded into Pharmaclass®: 40 are targeting serious adverse drug events. 1516 alerts were analysed and 539 PI transmitted during the 9-month test period.

What next?

This practice is applicable to any pharmaceutical analysis that uses data from an EHR. Clinical pharmacy societies should host and take care of updating corpus of PA. Its educational interest should be exploited. A European interest group for artificial intelligence in clinical pharmacy is being created.

Medical treatment of high blood pressure in patients with ileostomy

European Statement

Clinical Pharmacy Services

Author(s)

Guillaume Wabont, Jean-Philippe Hammelin, Guénaëlle Faure, Cathy Debruille, Kévin Raynaud, Pascale Guillain

Why was it done?

Clinical pharmacists and nephrologists noticed a recurrence of rehospitalization of patients who recently underwent ileostomy because of prerenal acute kidney injury. Ileostomy tends to enhance dehydration, but in each case there was a drug that was exacerbating the phenomenon by inhibiting the RAAS. The digestive and urologic surgeons had no knowledge of such pathophysiology and iatrogenia, explaining why they continued to prescribe such drugs.

What was done?

We elaborated an internal guideline for the treatment of high blood pressure (HBP) in patients with ileostomy. We decided to contraindicate to those patients the inhibitors of renin-angiotensin-aldosterone system (RAAS) such as angiotensin-converting enzyme inhibitors (ACEi), angiotensin receptor blockers (ARBs) or direct renin inhibitors (DRI); as well as the diuretics – even-though none of the summaries of the product characteristics (SmPC) of those drugs in question require such prohibition.
From now on, the drug(s) of the first line of treatment must be a beta-blocker and/or a calcic inhibitor. The drug(s) of the second line of treatment must be an alpha-blocker and/or an imidazoline-receptor agonist.

How was it done?

Therefore, we decided to set up a collective analysis of the situation with pharmacists, nephrologists and surgeons in digestive and urologic surgery, to understand the pathophysiology and to elaborate an internal guideline for HBP in patients with ileostomy.

The pharmacists first wrote a working paper retailing:
– the pathophysiology (water–electrolyte imbalance with ileostomy and deterioration under RAAS inhibitors or diuretic)
– the lack of information in the SmPC of the drugs in question
– an argued suggestion to contraindicate those drugs
– the therapeutic alternatives

Then we all met and exchanged views on the subject.

What has been achieved?

The guideline has been written in a collaborative and multi-disciplinary work. It applies to all the physicians and pharmacists of the hospital who have been informed of our approach and they have received a copy of it.

What next?

We will evaluate the respect of the guideline in our hospital as well as its impact in the lowering of the rehospitalization rate of patients who recently underwent ileostomy.
We will notify our national agency for medicines of our procedure because we think it should be a national standard.