Switching Topical Diclofenac from Higher to Lower Strength: Financial and Clinical Evaluation.

Background: In February 2020, the Fraser Health Authority in British Columbia introduced an automatic therapeutic interchange policy, whereby orders for any strength of topical diclofenac would be automatically interchanged to the commercially available diclofenac 2.32% gel for twice-daily administration. The new policy was intended mainly as a cost-saving measure but had the potential for clinical impacts that needed to be considered. Objectives: To evaluate the financial and clinical impact of the automatic therapeutic interchange policy for topical diclofenac. Methods: A financial evaluation and a clinical evaluation were conducted. Expenditures for topical diclofenac before and after implementation of the automatic therapeutic interchange policy were compared. To obtain information about the clinical impact of the interchange, a retrospective chart review was conducted at long-term care sites. The primary outcome was a composite of 7 components that could indicate worsening of pain in 3 prespecified scenarios. Results: The financial evaluation showed that the interchange could potentially save the health authority more than $200 000 over 12 months. The clinical evaluation showed that 25%-48% of patients met the primary outcome of worsening pain (analyzed according to 3 different scenarios) after the switch to lower-strength diclofenac, with increases in use of as-needed topical diclofenac and other analgesics being the main indicators of worsening pain. Conclusions: An automatic therapeutic interchange policy that switched orders for higher strengths of diclofenac to the 2.32% concentration resulted in large financial savings and, in most cases (52%-75% of patients), did not appear to affect pain control. Prospective studies comparing the clinical impact of higher- and lower-strength topical diclofenac products are warranted.

Contexte: En février 2020, la Fraser Health Authority en Colombie-Britannique a introduit une politique d'échange thérapeutique automatique, selon laquelle les commandes de diclofénac topique (n'importe quelle concentration) seraient automatiquement échangées contre du diclofénac à 2,32 % (formule en gel) disponible dans le commerce pour une administration deux fois par jour. La nouvelle politique visait principalement à réduire les coûts, mais pouvait avoir une incidence clinique, qui devait être prise en compte. Objectifs: Évaluer l'impact financier et clinique de la politique d'échange thérapeutique automatique pour le diclofénac topique. Méthodes: Une évaluation financière et une évaluation clinique ont été réalisées. Les dépenses liées au diclofénac topique avant et après la mise en œuvre de la politique d'échange thérapeutique automatique ont été comparées. Pour obtenir des informations sur l'incidence clinique de l'échange, un examen rétrospectif des dossiers a été réalisé dans les sites de soins de longue durée. Le résultat principal était un composite de 7 éléments pouvant indiquer une aggravation de la douleur dans 3 scénarios prédéfinis. Résultats: L'évaluation financière a montré que l'échange pourrait potentiellement permettre à l'autorité sanitaire d'économiser plus de 200 000 $ sur 12 mois. L'évaluation clinique a quant à elle démontré que 25 à 48 % des patients ont atteint le principal résultat d'aggravation de la douleur (analysé selon 3 scénarios différents) après le passage au diclofénac à plus faible concentration. L'augmentation de l'utilisation au besoin de diclofénac topique et d'autres analgésiques constituait le principal indicateur d'aggravation de la douleur. Conclusions: Une politique d'échange thérapeutique automatique qui remplaçait les ordonnances de concentrations plus élevées de diclofénac par une concentration de 2,32 % a permis de réaliser d'importantes économies financières et, dans la plupart des cas (52 à 75 % des patients), cet échange ne semble pas avoir eu d'effet sur le contrôle de la douleur. Des études prospectives comparant l'incidence clinique des produits topiques à base de diclofénac à concentration plus élevée et plus faible sont justifiées.

Hiding in Plain Sight: Quantifying Salbutamol and Ipratropium Inhaler Wastage in Hospitals.

Background: Previous studies have found significant inhaler wastage in the inpatient setting, which contributes to unnecessary health care expenditures. Wastage may involve inhalers available in automated dispensing cabinets (ADCs). Objectives: To evaluate whether salbutamol and ipratropium inhalers were unnecessarily withdrawn from ADCs for hospital inpatients. Methods: This cross-sectional study included patients from 16 health care facilities in British Columbia. ADC reports were run for the period August 2021 to January 2022 to identify salbutamol and ipratropium inhalers removed from ADCs. Results: Over the study period, 8.3% (2180/26 324) of salbutamol and ipratropium inhalers were withdrawn from ADCs unnecessarily for the same patient encounter within a 2-day timeframe, and another 1118 (4.2%) represented instances when multiple inhalers were withdrawn for the same patient at the same time. Overall, 12.5% (3298/26 324) of all salbutamol and ipratropium inhalers were withdrawn unnecessarily. The total cost of these inhalers was about $31 600 over the 6-month period. Conclusions: This evaluation revealed considerable wastage of inhalers, leading to wasted expenditures. Other health authorities should conduct similar analyses to determine whether similar problems exist in their settings.

Contexte: De précédentes études ont mis au jour un gaspillage important d'inhalateurs en milieu hospitalier, ce qui contribue à des dépenses de soins de santé inutiles. Ce gaspillage peut comprendre des inhalateurs disponibles dans des cabinet de distribution automatisé (CDA). Objectif: Évaluer si les inhalateurs de salbutamol et d'ipratropium ont été inutilement retirés des CDA pour les patients hospitalisés. Méthodes: Cette étude transversale comprenait des patients provenant de 16 établissements de soins de santé en Colombie-Britannique. Des rapports portant sur les CDA ont été générés pour la période d'août 2021 à janvier 2022 afin de recenser les inhalateurs de salbutamol et d'ipratropium qui ont été retirés des CDA. Résultats: Pendant la période de l'étude, 8,3 % (2180/26 324) des inhalateurs de salbutamol et d'ipratropium ont été inutilement retirés des CDA pour la même rencontre avec le patient dans une fenêtre de 2 jours, et dans le cas de 1118 (4,2 %) inhalateurs, plusieurs inhalateurs ont été retirées en même temps pour un même patient. Dans l'ensemble, 12,5 % (3298/26 324) de tous les inhalateurs de salbutamol et d'ipratropium ont été inutilement retirés. Le coût total de ces inhalateurs s'élevait à environ 31 600 $ sur une période de 6 mois. Conclusions: Cette évaluation a révélé un gaspillage considérable d'inhalateurs, ce qui entraîne des dépenses inutiles. D'autres autorités sanitaires devraient mener des analyses similaires pour savoir si des problèmes similaires se produisent dans leurs établissements.

Hidden Costs of Multiple-Dose Products: Quantifying Ipratropium Inhaler Wastage in the Hospital Setting.

BACKGROUND: Previous studies have quantified wastage involving drugs that are available in multiple-dose formats. Ipratropium bromide by metered dose inhaler (MDI) is commonly used in hospitals, and may be contributing to waste of pharmaceutical and financial resources. OBJECTIVES: The primary objective was to quantify the number of patients in the authors' health authority with waste of at least 1 ipratropium MDI. Secondary outcomes were the total number of wasted inhalers, the total number of wasted doses, the cost of wasted inhalers, the cost of wasted doses, and possible factors or explanations for inhaler wastage. METHODS: A retrospective chart review was conducted for patients with an order for ipratropium by MDI in 2019 at one of the acute care sites within the health authority (predefined sample size 336). The number of inhalers dispensed was compared with doses received to determine the number of inhalers wasted. Each patient's electronic chart was audited for possible factors and explanations for wasting of inhalers. RESULTS: Of the 336 patients, 79 (24%) had wastage of at least 1 inhaler. In total, 34% (98/290) of all inhalers dispensed and 87% (50 693/58 000) of all doses dispensed were wasted. The total cost of wasted inhalers for the sample population was $2156. The most common reason for inhaler wastage was no doses being administered after an inhaler was dispensed; the second most common reason was dispensing of an extra inhaler associated with a change in directions for use. CONCLUSIONS: The use of multiple-dose MDI products in hospitals can lead to wastage of drugs and financial resources. Procedures need to be implemented to aid pharmacy and nursing staff in ensuring the most efficient use of these products. Evaluations of pilot methods to mitigate this waste are encouraged.

CONTEXTE: Des études antérieures ont quantifié le gaspillage de médicaments disponibles dans des formats multidoses. Le bromure d'ipratropium administré par inhalateur-doseur (ID) est communément utilisé dans les hôpitaux et pourrait entraîner un gaspillage des ressources pharmaceutiques et financières. OBJECTIFS: L'objectif principal consistait à quantifier le nombre de patients relevant de l'autorité sanitaire des auteurs, qui étaient source d'un gaspillage d'au moins un ID d'ipratropium. Les résultats secondaires visaient à déterminer le nombre total d'inhalateurs et de doses gaspillés, le coût associé au gaspillage des uns et des autres, ainsi que les facteurs pouvant expliquer cette situation. MÉTHODES: Les dossiers des patients ayant reçu une prescription d'ipratropium administrée par ID en 2019 dans l'un des sites de soins intensifs de l'autorité sanitaire ont fait l'objet d'un examen rétrospectif (taille de l'échantillon prédéfinie : 336). Une comparaison entre le nombre d'inhalateurs distribués et les doses reçues a permis de déterminer le nombre d'inhalateurs gaspillés. La vérification de chaque dossier électronique des patients a révélé les facteurs et les explications possibles du gaspillage des inhalateurs. RÉSULTATS: Sur les 336 patients, on a noté un gaspillage d'au moins un inhalateur tous les 79 patients (24 %). Au total, le gaspillage se montait à 34 % (98/290) de tous les inhalateurs distribués et à 87 % (50 693/58 000) de toutes les doses distribuées. Le coût total des inhalateurs distribués à l'échantillon de population se montait à 2156 $. La raison du gaspillage la plus fréquente était l'absence de doses administrées après la distribution d'un inhalateur; la deuxième raison concernait la distribution d'un inhalateur supplémentaire associée à une modification des instructions relatives à son utilisation. CONCLUSIONS: L'utilisation de produits ID multidoses dans les hôpitaux peut entraîner un gaspillage de médicaments et de ressources financières. Des procédures doivent être mises en place pour aider les membres du personnel des pharmacies et le personnel infirmier à utiliser plus efficacement ces produits. Il serait indiqué de procéder à des évaluations de méthodes pilotes pour atténuer ce gaspillage.

Management of Acute Agitation and Aggression in Children and Adolescents with Pro Re Nata Oral Immediate Release Antipsychotics in the Pediatric Emergency Department.

Background: Acute agitation in the pediatric emergency department (ED) has the potential to escalate into aggression and result in harm. Rapid and effective management may be warranted. Use of pro re nata (prn) oral immediate-release (IR) quetiapine, haloperidol, loxapine, and chlorpromazine has been observed in the pediatric ED at Surrey Memorial Hospital to manage this condition; however, evidence for oral prn antipsychotic use is limited in the pediatric population. Objectives: The primary objective is to characterize the dose of prn oral IR quetiapine used to manage acute agitation or aggression in a pediatric ED. Secondary objectives include characterizing the dose of prn oral IR haloperidol, loxapine, and chlorpromazine; and describing the 1-hour response rate, admission rate, length of stay (LOS), and adverse drug effects. Method: The medical records of pediatric patients who received at least one prn oral dose of IR quetiapine, haloperidol, loxapine, or chlorpromazine for acute agitation and aggression, without regard to the etiology of symptom presentation, between January 1, 2012 and December 31, 2016, were analyzed retrospectively. Results: Sixty-nine patients met the inclusion criteria. The mean dose of quetiapine was 32 mg/dose (0.54 mg/kg per dose); and the response rate was 53%. The mean haloperidol, loxapine, and chlorpromazine doses were 4 mg (0.07 mg/kg per dose), 13 mg (0.19 mg/kg per dose), and 29 mg/dose (0.53 mg/kg per dose) respectively; and the response rates were 36%, 30%, and 50%, respectively. Between 19% and 60% of patients were admitted, majority to the psychiatry ward. The median LOS in the ED was between 5 and 18 hours for nonadmitted patients. Extrapyramidal side effects (EPS) were reported with first-generation antipsychotics (FGA), but not with quetiapine. Conclusion: Quetiapine appears to be a viable agent for managing acute agitation and aggression in the pediatric ED with low rates of EPS. Further studies are encouraged to compare the effectiveness of quetiapine with FGA. A Clinical Trial Registration number is not applicable for this study.

A cautionary tale of multiple-dose drug products: Fluticasone and salmeterol combination inhaler waste.

RATIONALE: Some drugs can only be dispensed in multiple-dose containers. Multiple-dose packaging may pose a problem for hospitals in terms of drug wastage and cost. Oral inhalers, such as fluticasone propionate and salmeterol combination inhalers, are only available as multiple-dose formats in Canada. OBJECTIVES: The objectives of this study are to quantify the amount of fluticasone propionate and salmeterol combination inhaler waste and to assess possible factors that could be contributing to waste. METHODS: A retrospective chart review of 189 patients was conducted. Patients were included if they had received an order for fluticasone propionate and salmeterol combination inhaler at one of the 12 acute hospital sites of Fraser Health Authority. The primary outcome was the proportion of patients who were dispensed one or more inhalers unnecessarily. The number of inhalers dispensed was compared with the number of inhalers needed to complete a patient's order duration. The chart was also reviewed for possible factors that could have contributed to extra inhalers being dispensed unnecessarily. RESULTS: Thirty-seven patients (19.6%) had at least one inhaler dispensed unnecessarily and thus wasted. About 17.4% of the total amount of inhalers dispensed were dispensed unnecessarily, and 76.3% of doses dispensed were wasted. The cost of inhalers wasted for our sample was $5151.12 (CAD). The most common factors that contributed to inhaler waste appeared to be loss of medication during patient transfers and storage of inhalers as wardstock. CONCLUSIONS: The use of drugs that are only available in multiple-dose formats results in significant drug wastage and unnecessary health care expenditure. To minimize wastage of drug product, procedures could be implemented to ensure that drugs are properly transferred with the patient when a patient transfers locations in the hospital. As well, a review of wardstock inventory may minimize waste. Further assessment of multiple-dose drug product waste and evaluations of methods to mitigate waste are encouraged.

Acute Kidney Injury With Tobramycin-Impregnated Bone Cement Spacers in Prosthetic Joint Infections.

BACKGROUND: Antibiotic-impregnated bone cement spacer (ACS) with tobramycin ± vancomycin is commonly used in a 2-stage replacement of infected prosthetic joints. This procedure has been associated with development of acute kidney injury (AKI). OBJECTIVE: To determine the incidence and risk factors for AKI after implantation of tobramycin-impregnated ACS. METHODS: This prospective, observational study evaluated 50 consecutive patients who received tobramycin ACS for first-stage revision of an infected hip or knee arthroplasty from August 2011 to February 2013. AKI was defined as 50% or greater rise in serum creatinine (SCr) from baseline within the first 7 postoperative days (PODs). RESULTS: The incidence of AKI was 20%, with median onset occurring at POD 2 (interquartile range [IQR] = 1-3); patients with AKI had a longer median duration of hospital stay (16 days, IQR = 12-17, vs 10 days, IQR = 8-10; P = 0.03). Serum tobramycin concentrations were significantly higher in the AKI group, peaking on POD 1 (median 1.9 vs 0.9 µg/mL, P = 0.01). Risk factors for nephrotoxicity identified by multivariate analysis were use of bone cement premanufactured with gentamicin (OR = 8.2; 95% CI = 1.1-60; P = 0.04), administration of blood transfusions intraoperatively (OR = 32.5; 95% CI = 2.3-454.3; P = 0.01) and nonsteroidal anti-inflammatory drugs postoperatively (OR = 23.0; 95% CI = 1.3-397.7; P = 0.03). CONCLUSIONS: Tobramycin ACS is associated with a high risk of AKI. Measures to minimize AKI risk in the perioperative period include early detection through close monitoring of SCr, avoiding use of premanufactured bone cement containing gentamicin, and avoiding potential nephrotoxins within the first 72 hours postoperatively.