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Record W3119296514 · doi:10.4212/cjhp.v74i1.3035

Assessment of a Pharmacist-Led Direct Oral Anticoagulant Monitoring Clinic

2021· article· en· W3119296514 on OpenAlexaffvenueabout
Jenna Haché, Kwadwo Osei Bonsu, Rufaro S Chitsike, Hai V. Nguyen, Stephanie Young

Bibliographic record

VenueThe Canadian Journal of Hospital Pharmacy · 2021
Typearticle
Languageen
FieldMedicine
TopicAtrial Fibrillation Management and Outcomes
Canadian institutionsMemorial University of Newfoundland
FundersSanofi
KeywordsMedicinePharmacistEmergency medicineInterquartile rangeStroke (engine)Atrial fibrillationPharmacyGuidelineOral anticoagulantAdverse effectWarfarinPediatricsMedical emergencyInternal medicineFamily medicine

Abstract

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Background: Direct oral anticoagulants (DOACs) are recommended as first-line therapy for treatment and prevention of venous thromboembolism (VTE) and prevention of stroke related to nonvalvular atrial fibrillation. Recent publications have suggested incorporating DOAC monitoring into anticoagulant management clinics. The Eastern Health Adult Outpatient Thrombosis Service (Newfoundland and Labrador) includes a pharmacist-led DOAC monitoring clinic that uses standardized evidence-based care processes. Objectives: To describe a new pharmacist-led DOAC monitoring clinic and to assess patients’ adherence to medication therapy, adherence to guideline-recommended frequencies for blood work, and adverse and non-adverse events. Methods: This retrospective chart review involved patients who attended their first visit to the DOAC clinic between October 10, 2017, and May 31, 2018. Patients were followed until November 30, 2018. Data were abstracted from electronic hospital records and the provincial pharmacy network. Descriptive statistics were used to analyze the data: categorical variables were presented as frequencies and percentages; continuous variables were analyzed and presented as means with standard deviations and, where applicable, as medians with interquartile ranges. Results: Forty-seven patients, who attended a total of 74 clinic visits, were included. Twenty-eight patients (60%) were adherent to their DOAC therapy. All patients had blood work completed before each clinic appointment. The mean time between the first and second sets of blood tests was 6.2 (standard deviation [SD] 1.4) months and between the second and third sets of blood tests was 5.1 (SD 1.0) months. There were no episodes of VTE or major bleeding. There was 1 cerebrovascular accident (3.2 events per 100 person-years, 95% confidence interval [CI] 0.2–15.7) and 5 episodes of clinically relevant non-major bleeding (12.8 events per 100 person-years, 95% CI 4.1–30.1). Pharmacists identified 51 issues at the clinic appointments, of which 48 were medication-related. Referral to the Thrombosis Service physician was required to resolve 8 (16%) of the issues identified. A brief discussion between the Thrombosis Service physician and pharmacist was required to resolve 30 (59%) of the issues, with 13 (25%) resolved by the pharmacist alone. Conclusions: This study described the implementation and outcomes of a novel pharmacist-led DOAC clinic. Clinic patients underwent blood work at recommended intervals and received guidance on adherence and adverse events; as such, patients had follow-up that aligned with guideline recommendations. RÉSUMÉ Contexte : Les anticoagulants oraux directs (AOD) sont recommandés comme thérapie de première ligne pour le traitement et la prévention de la thromboembolie veineuse (TEV) et la prévention des AVC liés à la fibrillation auriculaire non valvulaire. Des publications récentes ont proposé d’incorporer le contrôle des AOD dans les cliniques des anticoagulants. L’Eastern Health Adult Outpatient Thrombosis Service (St John’s, Terre-Neuve-et-Labrador) comprend une clinique de surveillance des AOD, dirigée par des pharmaciens qui utilisent des processus de soins standardisés basés sur des éléments de preuve. Objectifs : Décrire une nouvelle clinique de surveillance des AOD dirigée par des pharmaciens et évaluer l’adhésion des patients à la pharmacothérapie, le respect de la fréquence des analyses sanguines recommandées dans les lignes directrices ainsi que les effets indésirables et ceux qui ne le sont pas. Méthodes : Cet examen rétrospectif des dossiers impliquait des patients ayant effectué leur première visite à la clinique AOD entre le 10 octobre 2017 et le 31 mai 2018. Les patients étaient suivis jusqu’au 30 novembre 2018. Les données analysées provenaient de dossiers d’hospitalisation électroniques et du réseau des pharmacies provinciales. Des statistiques descriptives ont servi à analyser les données : les variables catégorielles ont été présentées sous forme de fréquences et de pourcentages; les variables continues ont été analysées et présentées sous forme de moyennes avec les écarts-types et, le cas échéant, sous forme de moyennes avec les écarts interquartiles. Résultats : Quarante-sept patients, ayant effectué 74 visites en clinique, ont participé à l’étude. Vingt-huit patients (60 %) se conformaient à leur thérapie AOD. Les analyses sanguines de tous les patients ont été effectuées avant chaque rendez-vous en clinique. Le temps moyen entre le premier et le deuxième ensemble de tests sanguins était de 6,2 mois (écart-type standard [ET] 1,4), et de 5,1 mois (ET 1) entre le deuxième et le troisième. Aucun épisode de TEV ou d’hémorragie importante n’a eu lieu. Il y a eu un accident cérébrovasculaire (3,2 événements par 100 années-personnes; intervalle de confiance [IC] à 95 % 0,2–15,7) et 5 épisodes de saignements non majeurs et cliniquement pertinents (12,8 événements par 100 années-personnes, IC 95 % 4,1–30,1). Les pharmaciens ont décelé 51 problèmes lors des rendez-vous en clinique; parmi ceux-ci, 48 étaient liés aux médicaments. Il a fallu faire appel au médecin du service des thromboses pour résoudre 8 (16 %) problèmes. Une brève discussion entre ce médecin et le pharmacien a été nécessaire pour résoudre 30 (59 %) problèmes et 13 (25 %) ont été réglés uniquement par le pharmacien. Conclusions : Cette étude décrivait la mise en place et les résultats d’une nouvelle clinique AOD dirigée par les pharmaciens. Les patients de la clinique ont subi une analyse sanguine aux intervalles recommandés et ont reçu des conseils sur l’adhésion et les effets indésirables; les patients ont donc bénéficié d’un suivi conforme aux lignes directrices.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.003
metaresearch head score (Gemma)0.010
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.013
Threshold uncertainty score0.025

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0030.010
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.001
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0030.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.111
GPT teacher head0.426
Teacher spread0.315 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations12
Published2021
Admission routes3
Has abstractyes

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