Evaluation of the use of inhaled medications by hospital inpatients with chronic obstructive pulmonary disease

Cognitive impairment according to Montreal Cognitive Assessment independently predicts the ability of chronic obstructive pulmonary disease patients to maintain proper inhaler technique

BACKGROUND

Maintaining correct inhaler technique is crucial in the management of chronic obstructive pulmonary disease (COPD). We aimed to investigate the inhaler technique in patients with COPD, to compare it immediately after and at 1 month after training, and to identify the predictors of incorrect inhaler use at 1 month after training.

METHODS

This prospective study was conducted at the COPD clinic of Siriraj Hospital (Bangkok, Thailand). Patients demonstrating improper inhaler use were trained face-to-face by pharmacists. Inhaler technique was re-assessed immediately after and at 1 month after training. The Montreal Cognitive Assessment (MoCA) score, pulmonary function tests, 6-min walk distance (6 MWD), modified Medical Research Council scale score, and COPD Assessment Test (CAT) score were evaluated.

RESULTS

Sixty-six patients with COPD who demonstrated at least one critical error during the use of any controller inhaler were enrolled. The mean age was 73.0 ± 9.0 years, and 75.8% patients had moderate/severe COPD. Immediately after training, all patients used dry powder inhalers correctly and 88.1% used pressurized metered-dose inhalers correctly. At 1 month, the number of patients demonstrating the correct technique decreased across all devices. Multivariable analysis revealed that MoCA score ≤ 16 was independently associated with a critical error at 1 month after training (adjusted odds ratio: 12.7, 95% confidence interval: 1.8-88.2, p = 0.010). At 1 month, CAT score (11.4 ± 8.9 vs. 8.4 ± 5.5, p = 0.018) and 6 MWD (351 ± 93 m vs. 372 ± 92 m, p = 0.009) had significantly improved in patients demonstrating the correct technique, and CAT score met the minimal clinically important difference.

CONCLUSIONS

Face-to-face training by pharmacists improved patient performance. However, the number of patients following proper technique had decreased at 1 month after training. Cognitive impairment (MoCA score ≤ 16) independently predicted the ability of COPD patients to maintain proper inhaler technique. Assessment of cognitive function combined with technical re-assessment and repeated training should improve COPD management.

Patient and Health Care Provider Perspectives on Potential Preventability of Hospital Admission for Acute Exacerbation of Chronic Obstructive Pulmonary Disease: A Qualitative Study

PURPOSE

Chronic obstructive pulmonary disease (COPD) is a highly prevalent chronic disease partly characterised by the occurrence of acute exacerbations (AECOPD). The need for hospital admissions for COPD exacerbations could theoretically be decreased through timely and appropriate outpatient care or self-management. The aim of this study is to explore and compare patients' and health care providers' (HCP) perspectives on the potential preventability of COPD hospitalisations and to identify strategies to prevent unnecessary hospitalisations.

PATIENTS AND METHODS

Semi-structured interviews were conducted with patients admitted for an AECOPD (N = 11), HCPs on the respiratory ward (N = 11), and treating pulmonologists (N = 10). Interviews were transcribed verbatim and analysed using thematic content analysis.

RESULTS

Patient and HCP perspectives on the potential preventability of hospital admissions for AECOPD often conflict. The kappa coefficients were -0.18 [95% CI: -0.46-0.11] for patients and pulmonologists and -0.28 [95% CI: -0.80-0.21] for patients and HCPs, which indicates poor agreement. The kappa coefficient for pulmonologists and HCPs was 0.14 [95% CI: -0.13-0.41], which indicates slight agreement. Patient and HCP factors that could potentially prevent hospitalisation for AECOPD were identified, including timely calling for help, recognizing and acting on symptoms, and receiving instruction about COPD, including treatment and action plans.

CONCLUSION

Patients and their HCPs have different beliefs about the potential preventability of AECOPD hospitalisations. Most patients and HCPs mentioned factors that potentially could have led to a different outcome for the current AECOPD or that could impact the patient's health status and treatment of AECOPDs in the future. The factors identified in this study indicate that shared decision making is crucial to center the patient's perspective and individual needs and to provide timely treatment or prevention of AECOPD, thereby potentially decreasing hospital admission rates.

Evaluation of In-Hospital Management of Inhaler Therapy for Chronic Obstructive Pulmonary Disease

BACKGROUND

In the past decade, the number of inhaled devices approved for management of chronic obstructive pulmonary disease (COPD) has tripled. Management of at-home inhaled COPD therapy can present a problem when patients are admitted to hospital, because only a limited number of these therapies are currently included in hospital formularies and there is a lack of established interchanges.

OBJECTIVES

To characterize and evaluate the appropriateness of management of patients' before-admission inhaled therapy upon hospital admission.

METHODS

This retrospective chart review involved patients with COPD admitted to a tertiary care centre over a 1-year period (October 2017 to September 2018). Before-admission inhaled therapy was compared with inhalers ordered in hospital and at discharge. Inhaler device type, regimen, therapeutic class, and disease severity were used to assess the appropriateness of inpatient management.

RESULTS

The charts of 200 patients were reviewed. Of these patients, 124 (62%) were kept on the same inhaler, 43 (22%) had one or more of their inhalers discontinued, 35 (18%) had to provide their own medication, and 24 (12%) had their medication changed to a formulary equivalent. An average delay of 2.6 (standard deviation 3.2) days occurred when patients provided their own medication. Formulary substitution resulted in most patients receiving a medication from the same class (75% [18/24]); however, other aspects of therapy, such as device type (17% [4/24]), regimen (29% [7/24]) and drug combination (47% [9/19]), were not maintained. Only 55% (6/11) received an equivalent dose of inhaled corticosteroids when the medication was interchanged to a formulary inhaler.

CONCLUSIONS

The majority of patients' inhaled therapies continued unchanged upon admission to hospital, which suggests that despite the proliferation of new inhalers on the market, their use is still limited. For patients who did require interchange to formulary inhalers, maintenance of the same regimen, device, and combination product was rare. Provision of the medication supply by patients themselves often resulted in a delay in therapy.

Confidence of nurses with inhaler device education and competency of device use in a specialised respiratory inpatient unit

We performed a cross-sectional study within a specialised respiratory inpatient unit assessing 25 nurses' [85% female, 8.0 ± 7.9 (mean ± SD) years' experience in nursing] confidence in providing inhaler device education using a self-reported questionnaire, and their competency (% correct steps) in using eight different inhaler devices. Sixteen percent of participants were 'not confident' providing inhaler education, while 84% were 'moderately' or 'extremely' confident. The mean (±SD)% correct steps for all devices was 47 ± 17%. There was no correlation between % correct steps and nursing years (r = 0.21, p = 0.31), or 'confidence' with providing inhaler education (r = 0.02, p = 0.91) but % correct steps strongly correlated with number of individual device prescriptions within the hospital in the preceding year (r = 0.78, p = 0.039). Most respiratory nurses felt confident in teaching inhaler technique but their overall demonstrated ability to correctly use inhalers was poor, especially for less frequently prescribed devices within our hospital. Regular assessment and ongoing education on correct inhaler technique for respiratory nurses is necessary to optimise all device usage by nurses, irrespective of experience or confidence.

Preventable adverse drug events causing hospitalisation: identifying root causes and developing a surveillance and learning system at an urban community hospital, a cross-sectional observational study

OBJECTIVES

To identify root causes of preventable adverse drug events (pADEs) contributing to hospital admission; to develop key messages which identify actions patients/families and healthcare providers can take to prevent common pADEs found; to develop a surveillance learning system for the community.

METHODS

Cross-sectional observational study; 120 patients and families, 61 associated healthcare providers were interviewed then root cause analysis was performed to develop key learning messages and an electronic reporting tool was designed. Most common pADE-related medical conditions and their root causes and most common pADE root causes of entire cohort are reported.

RESULTS

Most common pADE-related medical conditions: chronic obstructive pulmonary disease/asthma (13.3%), bleeding (12.5%), hypotension (12%), heart failure (10%), acute kidney injury (5%) and pneumonia (5%). Most common root causes were: providers not confirming that the patient/family understands information given (29.2%), can identify how a medication helps them/have their concerns addressed (16.7%), can identify if a medication is working (14.1%) or causing a side effect (23.3%); can enact medication changes (7.5%); absence of a sick day management plan (12.5%), and other action plans to help patients respond to changes in their clinical status (10.8%); providers not assessing medication use and monitoring competency (19.2%). Ten key learning messages were developed and a pADE surveillance learning system was implemented.

CONCLUSIONS

To prevent pADEs, providers need to confirm that patients/families understand information given, how a medication helps them, how to recognise and respond to side effects, how to enact medication changes and follow action plans; providers should assess patient's/families' medication use and monitoring competency.

Choosing the right inhaler for the right patient: Considerations for effective management of patients with chronic obstructive pulmonary disease or asthma

BACKGROUND AND PURPOSE

Effective management of chronic respiratory disorders such as chronic obstructive pulmonary disease and asthma necessitates that patients inhale their medication. However, lack of detailed guidelines on the technological and mechanical functions of inhalers limits the ability of health care providers (HCPs) to personalize inhaler choice for patients. Numerous types of inhalers are currently available which offer their own distinct advantages and disadvantages. Independent of the drug class, the choice of inhaler may be influenced by many factors (e.g., inhaler attributes and the efficiency with which it delivers the medication, patient characteristics and preferences, dosing regimen, clinical setting, and support available for both patients and HCPs). This article attempts to summarize the inhalation technology and factors influencing inhaler choice and use and to provide an approach for matching the right inhaler to the right patient.

CONCLUSIONS

Identifying factors related to inhaler choice is critical to ensuring adherence to treatment and patients' ability to use their inhaler correctly.

IMPLICATIONS FOR PRACTICE

This review will help HCPs engage their patients in decision-making for inhaler choice and facilitate selection of the correct inhaler for each patient (i.e., one that they will use).

First-time handling of different inhalers by chronic obstructive lung disease patients

Background: There is a lack of guidance on inhaler device selection and how to individualize inhaler choice when prescribed for the first-time.Aim of the work: To compare different inhalers regarding ease of use and number of counseling attempts needed for correct handling in subjects with a first experience to such inhalers; also, to investigate if there is a correlation between total correct steps achievements and patient demographics/clinical variables.Method: An open-label, non-drug interventional, cross-over study was conducted including 180 Egyptian patients with chronic obstructive pulmonary disease (COPD). The study evaluated handling of the most common inhalers in subjects with a first experience with them before hospital discharge. Subjects were randomized to handle 10 placebo inhalers including: [metered dose inhaler (pMDI), Aerolizer, Handihaler, Turbohaler, Diskus, Breezhaler, Ellipta, Easyhaler, Diskhaler, and Respimat] without receiving verbal or demonstrative instruction with allowable access to the patient information leaflets in native language supported by figures with enough time to read (baseline assessment). Subjects were then crossed-over to other inhalers with a first experience randomly. Inhalers with a reported past-experience were excluded. Inhaler-technique was assessed by using previously defined checklists, including essential steps and critical errors. The whole handling of the inhaler was demonstrated and the number of counseling attempts needed to correct handling was recorded. Patient demographics and clinical variables were recorded and correlated with correct handling steps.Results: The baseline percentages of total correct steps achievements as mean ± SD were 50 ± 19, 52 ± 16, 58 ± 14, 60 ± 17, 64 ± 10, 67 ± 16, 72 ± 17, 73 ± 11, 77 ± 14 and 86 ± 11% for Respimat, pMDI, Diskhaler, Diskus, Aerolizer, Handihaler, Easyhaler, Turbohaler, Breezhaler, and Ellipta respectively with p < 0.001. Baseline percentages of participants with at least 1 critical error significantly differed between inhalers (p < 0.05) with Ellipta showing the lowest percentage (37%). pMDI, Diskhaler, and Respimat showed the highest percentages (100%, 97% and 94% respectively). The number of counseling attempts needed to reach correct handling showed a significant difference among inhalers (p < 0.05). Ellipta showed the highest percentage of participants with correct handling with no counseling (20%) and the highest percentage of participants achieved with one counseling attempt (78%). Diskhaler, pMDI, and Respimat were the only inhalers included in a fourth counseling attempt (15%, 9%, and 6% respectively). Weak and very weak correlations were found between patient demographics/clinical variables and percentages of total correct steps achievements.Conclusion: Inhalers techniques greatly vary in their ease of use (self-explaining) ranging from easy inhalers (Ellipta) to intermediate inhalers (breezhaler, Easyhaler, Turbohaler, Aerolizer, Handihaler, and Diskus) followed by the most difficult inhalers (pMDI, Diskhaler, and Respimat). That must be considered when prescribing inhalers for the first time; choice of the inhaler should, in part, be based on ease of use and to be accompanied by repeated counseling.

Patient Characteristics and Healthcare Resource Utilization Among Patients with COPD New to LAMA/LABA Fixed-Dose Combination Treatment in US-Based Real-World Practice

Introduction

This retrospective, observational cohort study utilized an integrated dataset from an electronic health records system and a claims database to describe demographic and clinical characteristics, healthcare resource utilization (HCRU), and treatment patterns in COPD patients initiating long-acting muscarinic antagonist (LAMA)/long-acting β₂-agonist (LABA) fixed-dose combination (FDC) treatment in the USA.

Methods

Patients were aged ≥40 years and had a COPD diagnosis (Practice Fusion system) and ≥1 prescription of LAMA/LABA FDC therapy, with an index date (first prescription) 1 May 2014–31 December 2017. For the HCRU analysis, patients had ≥2 claims from the Symphony Health database within 12 months before index. All analyses of outcomes relating to demographic and clinical characteristics, HCRU, and treatment patterns were descriptive.

Results

Patients initiating LAMA/LABA FDCs (n=8224) had a mean age of 67.9 years, 52.8% were female, and mean BMI was 29.2 kg/m². The most common comorbidities were cardiovascular disease (74.3%), hypertension (64.0%), and hyperlipidemia (45.6%). In the 12 months prior to index, 53.1% of patients had used inhaled therapy: 23.4% short-acting therapy only, 16.7% short-acting and maintenance therapy, and 13.1% maintenance therapy only. Amongst users of inhaled therapies, the pMDI was the most frequently used device (64.3%, n=2812/4370). Of 7050 patients included in the HCRU analysis, 79.8% had COPD-related costs; mean cost/patient was $4174. Mean COPD-related costs per patient for moderate and severe exacerbations were $910 and $23,208, respectively. Per-patient costs included $23,032 for inpatient visits, $2358 for emergency visits, $4432 for outpatient visits, and $1989 for pharmacy claims.

Conclusion

This observational study is the first to describe the real-world demographic and clinical characteristics and HCRU of patients initiating LAMA/LABA FDC treatment in the USA. Patients were generally elderly and overweight, with comorbidities of CVD, hypertension, and hyperlipidemia. Inpatient visits were the largest contributor to COPD-related costs per patient in the year prior to initiation of LAMA/LABA FDCs.

Checking Inhaler Technique in the Community Pharmacy: Predictors of Critical Errors

Inhaled medications are critical in the pharmaceutical management of respiratory conditions, however, the majority of patients demonstrate at least one critical error when using an inhaler. Since community pharmacists can be instrumental in addressing this care gap, we aimed to determine the rate and type of critical inhaler errors in community pharmacy settings, elucidate the factors contributing to inhaler technique errors, and identify instances when community pharmacists check proper inhaler use. Fourth year pharmacy students on community practice placement (n = 53) identified 200 patients where at least one error was observed in 78% of participants when demonstrating inhaler technique. Prevalent errors of the users were associated with metered dose inhaler (MDI) (55.6%), Ellipta^® (88.3%), and Discus^® (86.7%) devices. Overall, the mean number of errors was 1.09. Possession of more than one inhaler, use of rescue inhaler, and poor control of asthma were found to be significant predictors of having at least one critical error. In all participating pharmacies, inhaler technique is mainly checked on patient request (93.0%) and for all new inhalers (79.0%).

Evaluation of the knowledge and correct use of metered-dose inhalers by healthcare professionals and medical students in Gauteng Province

Background

The Global Initiative for Asthma (GINA) estimates that South Africa (SA) has over 3.9 million asthma sufferers, of whom 1.5% die of the condition annually. SA has the world’s fourth highest asthma death rate among 5 - 35-year-olds. Chronic obstructive pulmonary disease (COPD) will be the third leading cause of death globally by 2030, and will surpass HIV/AIDS in Africa. Uncontrolled asthma and COPD are frequent causes of emergency department visits and hospital admissions. Poor metered-dose inhaler (MDI) technique is probably a major contributory cause. It is the responsibility of all treating doctors and healthcare professionals to educate patients on inhaled therapy with the correct MDI technique, as well as to routinely check and repeatedly demonstrate the technique to them.

Objectives

This study evaluated study participants’ knowledge of MDI technique, and their compliance in checking and demonstrating MDI use to patients prescribed inhaled therapy. The study participants included doctors, nurses and final-year medical students at Helen Joseph Hospital and Chris Hani Baragwanath Academic Hospital, in the Departments of Internal Medicine and Emergency Medicine, and the Division of Pulmonology.

Methods

A total of 195 study participants volunteered to take part in the study. A questionnaire was administered to participants to gauge their perceptions, level of knowledge and understanding of MDI technique. They were then requested to demonstrate correct inhaler technique via a placebo MDI. Participants’ use of a placebo MDI was evaluated by a scoring system.

Results

The total sample of 195 comprised 130 (67%) female and 65 (33%) male participants. Of these, 133 (68%) were qualified medical staff, and 62 were final-year medical students. Only 32 (16%) could demonstrate correct MDI technique. Over 50% of participants did not demonstrate MDI technique to patients, or check their patients’ technique at every hospital-related visit.

Conclusion

Healthcare professionals and final-year medical students have poor knowledge of inhaler technique and are ill-prepared to teach patients. Also of concern is that the majority do not routinely demonstrate or observe patients’ inhaler technique.

Counseling of inhalation medicine perceived by patients and their healthcare providers: insights from North Cyprus

Background In order to achieve patient adherence, individuals require different levels of information. Basic and adequate information must be provided by different health care providers to patients. Objective To assess the information level of patients with asthma and chronic obstructive pulmonary disease (COPD) and to determine the source of their information regarding the medicine they use in addition to their satisfaction, inhalation usage techniques and perception of the information providing role of health care professionals. Setting Respiratory disease clinics in Nicosia and Famagusta state hospitals and community pharmacies in North Cyprus. Method A cross-sectional multicentered observational study was carried out in respiratory disease clinics and community pharmacies. Patients' knowledge and healthcare providers' perceptions of their roles were evaluated using "The satisfaction with information about medicines scale". Evaluation of patient's inhalation techniques was performed using a validated checklist. Main outcome measure (a) Patients' knowledge of their medication and satisfaction with the information provided by health care professionals, (b) the prevalence of critical inhalation mistakes, (c) health care professionals' perceptions of their patient counseling practice. Results A total of 110 patients were evaluated, and 6 physicians and 76 pharmacists were recruited for the interview. The health care professionals reported that they talk about the action and the use of medicines with the patients. The standardized average patients' satisfaction score for action and use was 0.35 (± 0.21), whereas for potential side effects, it was 0.26 (± 0.15). Even though 92% of patients believed that they use their inhaler properly, 75% of the patients made at least one critical mistake while using the inhalation demo, which would likely affect the delivery of the medicine to the lungs. Conclusion In spite of health care professionals feeling comfortable with their counseling practices, the majority of patients reported dissatisfaction with the information they provided about medicine, and three out of four patients were making critical mistakes in the use of inhalers. More effort is warranted by health care professionals on patient education to limit critical mistakes.

Inhaler Technique and Adherence to Inhaled Medications among Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease in Vietnam

Sub-optimal chronic obstructive pulmonary disease (COPD) management has been found largely due to patients' medication non-adherence and incorrect inhaler technique. This study aimed to examine inhaler use technique and medication adherence among Vietnamese COPD patients as well as potential associated factors. A cross-sectional study involving 70 COPD exacerbators was conducted. Inhaler technique and adherence were evaluated by the 10-item and 12-item Test of Adherence to Inhaler (TAI). Data on the history of COPD, home prescription of inhalers and duration of hospitalization were also collected. Generalized linear regression models were used to determine the associated factors with inhaler use and medication adherence. The results showed that the proportion of patients with good inhaler technique was 22.7% for metered-dose inhalers (MDI), 30.4% for dry powder inhalers (DPI) and 31.8% for soft-mist inhalers (SMI). Full exhalation was the most common mistake. The rates of non-compliance patterns were: "ignorant" (77.1%), "sporadic" (58.6%), and "deliberate" (55.7%). Worse dyspnea, greater health condition impairment, and an increased frequency of exacerbations and hospitalizations were found to be associated negatively with correct inhaler use and treatment adherence. Instructions to COPD patients about using inhalers should focus on correct inhaler technique and adherence even when feeling healthy.

Correct use and ease of use of a placebo dry powder inhaler in subjects with asthma and chronic obstructive pulmonary disease

Correct use and ease of use of a placebo dry powder inhaler was evaluated in two single-arm, United States-multicenter, phase-IV studies in adults with asthma ( n = 259) or chronic obstructive pulmonary disease (COPD; n = 278) who were receiving maintenance inhaler therapy. Subjects demonstrating correct placebo inhaler use within three attempts at screening were instructed to take once-daily inhalations from the inhaler for 28 ± 2 days (continuing usual maintenance), followed by randomization to complete one of two versions of an ease-of-use questionnaire and reassessment for correct inhaler use. At study end, 96% asthma/93% COPD subjects rated the placebo inhaler as "easy" or "very easy" to use while demonstrating correct use. Furthermore, 99% asthma/99% COPD subjects indicated it was "easy" or "very easy" to determine number of doses remaining, and 81%/84%, respectively, indicated they would be "likely" or "very likely" to request their current medication in the inhaler, if available. Adverse event (AE) rates were 12% asthma/15% COPD, most frequently headache (3%/3%). Treatment-related AEs were reported in one subject with asthma (cough) and four subjects with COPD (cough, n = 3; back pain, n = 1). At study end, most subjects with asthma or COPD operated the placebo inhaler correctly and found it easy to use.

Comparing the Effects of Face-to-face and Video-based Education on Inhaler Use: A Randomized, Two-group Pretest/posttest Study

Background:

The quality of inhaler use can significantly affect the effectiveness of inhalation medications. This study was done to compare the effects of face-to-face and video-based education methods on inhaler use.

Materials and Methods:

A quasi-experimental, pretest/posttest clinical trial study was conducted on 120 patients with respiratory diseases who were under treatment with metered-dose inhalers. Patients were randomly allocated into two groups to receive either face-to-face (n = 60) or video-based education (n = 60) about correct inhaler use. Inhaler use was assessed using a 15-item checklist before, 2 weeks, and 1 month after the education. Chi-square and independent sample t-test as well as repeated-measures analysis of variance were used for data analysis.

Results:

At baseline, the groups did not differ significantly in inhaler use as shown by the mean score (t = 0.81, p = 0.33). Repeated-measures analysis showed that the mean score of inhaler use significantly increased in both groups 2 weeks and 1 month after the intervention (F = 585.07, p < 0.001). The t-test showed that at 2 weeks and 1 month after intervention the amount of increase in the face-to-face group was significantly greater than the video-based group (t = 3.31 and 5.93, p < 0.001).

Conclusions:

Both face-to-face and video-based education methods significantly improve inhaler use, even though the effects of the face-to-face method are significantly greater. Nurses can use either of these two methods or both for education of patients about inhaler use.

A randomized, open-label, single-visit, crossover study simulating triple-drug delivery with Ellipta compared with dual inhaler combinations in patients with COPD

Background

Administering maintenance COPD therapy with a combination of multiple inhalers may increase inhaler errors. This study evaluated the potential benefits of using a single Ellipta dry powder inhaler (DPI) compared with two combinations of DPIs commonly used to deliver triple maintenance therapy.

Methods

Patients receiving inhaled COPD medication were enrolled in this multicenter, randomized, open-label, placebo-device, crossover study with a 2×2 complete block design (NCT0298218), which comprised two substudies: Ellipta vs Diskus + HandiHaler (substudy 1) or Turbuhaler + HandiHaler (substudy 2). Patients demonstrated inhaler use after reading the relevant patient information leaflet (PIL). A trained investigator assessed user errors (critical errors [errors likely to result in no or significantly reduced medication being inhaled] and overall errors). The primary endpoint was the proportion of patients making ≥1 critical error after reading the PIL. The secondary endpoints included error rates during ≤2 reassessments following investigator instruction (if required), instruction time, and patient preference.

Results

After reading the PIL, significantly fewer patients made critical errors with Ellipta compared with Diskus + HandiHaler (9% [7/80] vs 75% [60/80], respectively; P<0.001) or Turbuhaler + HandiHaler (9% [7/79] vs 73% [58/79], respectively; P<0.001). The number of patients making overall errors was also lower with Ellipta vs tested inhaler combinations (P<0.001 for each substudy). The median instruction time needed for error-free use was shorter with Ellipta in substudies 1 and 2 (2.7 and 2.6 minutes, respectively) vs either combination (10.6 [Diskus + HandiHaler] and 11.3 minutes [Turbuhaler + HandiHaler], respectively). Significantly more patients preferred Ellipta over Diskus + HandiHaler or Turbuhaler + HandiHaler overall for taking their COPD medication (81% vs 9% and 84% vs 4%, respectively) and per the number of steps for taking their COPD medication (89% vs 8% and 91% vs 5%, respectively).

Conclusion

Fewer patients with COPD made critical errors with the single DPI, and patients required less instruction time, compared with each dual DPI combination.

Pharmacists' training to improve inhaler technique of patients with COPD in Vietnam

Background

Incorrect use of inhalers is very common and subsequently leads to poor control of COPD. Among health care providers, pharmacists are in the best position to educate patients about the correct use of inhaler devices.

Objective

The objective of this study was to evaluate the impact of pharmacist-led training on the improvement of inhaler technique for COPD patients in Vietnam.

Patients and methods

For this pre- and post-intervention study, standardized checklists of correct use of metered-dose inhalers (MDIs) and dry powder inhalers (DPIs) were used to evaluate the inhaler technique. A scoring system (maximum score =8) was applied before and after training to guarantee assessment uniformity among pharmacists. Three methods including "face-to-face training", "teach-back" and "technique reminder label" were used. After the baseline evaluation (T0), the inhaler technique was reassessed after 1 month (T1), 3 months (T2), 6 months (T3) and 12 months (T4).

Results

A total of 211 COPD patients participated in the study. Before the training, a high rate of errors was recorded. After the training, the percentage of patients using MDIs and DPIs perfectly increased significantly (p<0.05). The mean technique score for MDIs and DPIs improved from 6.0 (T0) to 7.5 (T3) and 6.9 (T4) and 6.7 (T0) to 7.6 (T3) and 7.2 (T4), respectively (p<0.05). The average training time was 6 minutes (T0) and 3 minutes (T3), respectively.

Conclusion

Pharmacist-led comprehensive inhaler technique intervention program using an unbiased and simple scoring system can significantly improve the inhaler techniques in COPD patients. Our results indicated a 3-month period as the optimal time period between training and retraining for maintaining the correct inhaler technique. The training would be highly feasible and suitable for implementing in the clinical setting. Our model of pharmacist-led training should be considered as an effective solution for managing COPD patients and better utilization of health care human resources, especially in a developing country like Vietnam.

Misuse of inhalers among COPD patients in a community hospital in Taiwan

Purpose

Respiratory inhalers, which directly deliver medication to the airway, are important for controlling symptoms and preventing exacerbations of chronic obstructive pulmonary disease (COPD). The inhaler misuse rate of patients with COPD in Taiwan is unclear. In this study, the inhaler techniques and patient characteristics associated with incorrect inhaler techniques among patients with COPD were evaluated.

Patients and methods

This cross-sectional study enrolled 298 patients with COPD (mean age 72.10 years) who used at least one inhaler device. The following five types of inhalers were included: metered-dose inhaler (MDI) with spacer, Diskus^®, Turbuhaler^®, Respimat^®, and Breezhaler^®. The inhaler technique was evaluated step by step. Misuse of an individual inhaler was defined as an error in at least one step. The sociodemographic characteristics, vision, hearing ability, type and number of inhalers, and inhaler-related knowledge of these patients were recorded.

Results

The misuse rates of the five types of inhalers ranged from 65.00% to 87.89%. The Respimat inhaler was the most likely to be assembled incorrectly. The steps that were most commonly performed incorrectly were “breathing out fully” and “holding breath”. In the logistic regression analysis, poor hearing was related to misuse of the MDI with spacer (adjusted odds ratio [aOR] 9.85; 95% CI 1.40–69.30); the number of acute exacerbations was related to misuse of Breezhaler (aOR 4.07; 95% CI 1.50–11.08). Incorrect inhaler-related knowledge was significantly associated with misuse in handling the MDI with spacer (aOR 9.58; 95% CI 2.14–42.80), Respimat (aOR 5.14; 95% CI 2.07–12.76), and Breezhaler (aOR 6.98; 95% CI 1.95–25.08).

Conclusion

The misuse rates were high for all five types of inhaler. Poor hearing and the number of acute exacerbations were device-specific factors related to the misuse of inhalers. Inhaler-related knowledge was significantly associated with misuse, emphasizing the importance of inhaler education.

Objective Assessment of Patient Inhaler User Technique Using an Audio-Based Classification Approach

Many patients make critical user technique errors when using pressurised metered dose inhalers (pMDIs) which reduce the clinical efficacy of respiratory medication. Such critical errors include poor actuation coordination (poor timing of medication release during inhalation) and inhaling too fast (peak inspiratory flow rate over 90 L/min). Here, we present a novel audio-based method that objectively assesses patient pMDI user technique. The Inhaler Compliance Assessment device was employed to record inhaler audio signals from 62 respiratory patients as they used a pMDI with an In-Check Flo-Tone device attached to the inhaler mouthpiece. Using a quadratic discriminant analysis approach, the audio-based method generated a total frame-by-frame accuracy of 88.2% in classifying sound events (actuation, inhalation and exhalation). The audio-based method estimated the peak inspiratory flow rate and volume of inhalations with an accuracy of 88.2% and 83.94% respectively. It was detected that 89% of patients made at least one critical user technique error even after tuition from an expert clinical reviewer. This method provides a more clinically accurate assessment of patient inhaler user technique than standard checklist methods.

Critical inhaler errors in asthma and COPD: a systematic review of impact on health outcomes

BACKGROUND

Inhaled drug delivery is the cornerstone treatment for asthma and chronic obstructive pulmonary disease (COPD). However, use of inhaler devices can be challenging, potentially leading to critical errors in handling that can significantly reduce drug delivery to the lungs and effectiveness of treatment.

METHODS

A systematic review was conducted to define 'critical' errors and their impact on health outcomes and resource use between 2004 and 2016, using key search terms for inhaler errors in asthma and COPD (Search-1) and associated health-economic and patient burden (Search-2).

RESULTS

Search-1 identified 62 manuscripts, 47 abstracts, and 5 conference proceedings (n = 114 total). Search-2 identified 9 studies. We observed 299 descriptions of critical error. Age, education status, previous inhaler instruction, comorbidities and socioeconomic status were associated with worse handling error frequency. A significant association was found between inhaler errors and poor disease outcomes (exacerbations), and greater health-economic burden.

CONCLUSIONS

We have shown wide variations in how critical errors are defined, and the evidence shows an important association between inhaler errors and worsened health outcomes. Given the negative impact diminished disease outcomes impose on resource use, our findings highlight the importance of achieving optimal inhaler technique, and a need for a consensus on defining critical and non-critical errors.

A cross-sectional observational study to assess inhaler technique in Saudi hospitalized patients with asthma and chronic obstructive pulmonary disease

Objectives:

To assess the proportion of critical errors committed while demonstrating the inhaler technique in hospitalized patients diagnosed with asthma and chronic obstructive pulmonary disease (COPD).

Methods:

This cross-sectional observational study was conducted in 47 asthmatic and COPD patients using inhaler devices. The study took place at King Abdulaziz Medical City, Riyadh, Saudi Arabia between September and December 2013. Two pharmacists independently assessed inhaler technique with a validated checklist.

Results:

Seventy percent of patients made at least one critical error while demonstrating their inhaler technique, and the mean number of critical errors per patient was 1.6. Most patients used metered dose inhaler (MDI), and 73% of MDI users and 92% of dry powder inhaler users committed at least one critical error.

Conclusion:

Inhaler technique in hospitalized Saudi patients was inadequate. Health care professionals should understand the importance of reassessing and educating patients on a regular basis for inhaler technique, recommend the use of a spacer when needed, and regularly assess and update their own inhaler technique skills.

Device errors in asthma and COPD: systematic literature review and meta-analysis

Inhaler device errors are common and may impact the effectiveness of the delivered drug. There is a paucity of up-to-date systematic reviews (SRs) or meta-analyses (MAs) of device errors in asthma and chronic obstructive pulmonary disease (COPD) patients. This SR and MA provides an estimate of overall error rates (both critical and non-critical) by device type and evaluates factors associated with inhaler misuse. The following databases from inception to July 23, 2014 (Embase®, MEDLINE®, MEDLINE® In-Process and CENTRAL) were searched, using predefined search terms. Studies in adult males and females with asthma or COPD, reporting at least one overall or critical error, using metered dose inhalers and dry powder inhalers were included. Random-effect MAs were performed to estimate device error rates and to compare pairs of devices. Overall and critical error rates were high across all devices, ranging from 50-100% and 14-92%, respectively. However, between-study heterogeneity was also generally >90% (I-squared statistic), indicating large variability between studies. A trend towards higher error rates with assessments comprising a larger number of steps was observed; however no consistent pattern was identified. This SR and MA highlights the relatively limited body of evidence assessing device errors and the lack of standardised checklists. There is currently insufficient evidence to determine differences in error rates between different inhaler devices and their impact on clinical outcomes. A key step in improving our knowledge on this topic would be the development of standardised checklists for each device.

CHRONIC LUNG DISEASES

CALL TO STANDARDISE RESEARCH INTO INHALER DEVICE ERRORS: Researchers should adopt a standardised approach to investigate the incorrect use of inhalers and its associated clinical implications. Henry Chrystyn at Plymouth University, together with scientists across the UK and the Netherlands, conducted a review of research related to inhaled medication errors made by patients with asthma or chronic obstructive pulmonary disease. It is widely acknowledged that many patients with lung conditions don't use their inhaler devices correctly, which affects drug effectiveness and disease control. While Chrystyn's team found high critical error rates reported across all devices, their meta-analysis and systematic review highlighted significant gaps in knowledge regarding different inhalers and associated error rates, and how these affect clinical outcomes. The researchers call for in-depth studies into device use, alongside standardised checklists and definitions for such studies to use to ensure consistency.

A randomised open-label cross-over study of inhaler errors, preference and time to achieve correct inhaler use in patients with COPD or asthma: comparison of ELLIPTA with other inhaler devices

Errors in the use of different inhalers were investigated in patients naive to the devices under investigation in a multicentre, single-visit, randomised, open-label, cross-over study. Patients with chronic obstructive pulmonary disease (COPD) or asthma were assigned to ELLIPTA vs DISKUS (Accuhaler), metered-dose inhaler (MDI) or Turbuhaler. Patients with COPD were also assigned to ELLIPTA vs Handihaler or Breezhaler. Patients demonstrated inhaler use after reading the patient information leaflet (PIL). A trained investigator assessed critical errors (i.e., those likely to result in the inhalation of significantly reduced, minimal or no medication). If the patient made errors, the investigator demonstrated the correct use of the inhaler, and the patient demonstrated inhaler use again. Fewer COPD patients made critical errors with ELLIPTA after reading the PIL vs: DISKUS, 9/171 (5%) vs 75/171 (44%); MDI, 10/80 (13%) vs 48/80 (60%); Turbuhaler, 8/100 (8%) vs 44/100 (44%); Handihaler, 17/118 (14%) vs 57/118 (48%); Breezhaler, 13/98 (13%) vs 45/98 (46%; all P<0.001). Most patients (57–70%) made no errors using ELLIPTA and did not require investigator instruction. Instruction was required for DISKUS (65%), MDI (85%), Turbuhaler (71%), Handihaler (62%) and Breezhaler (56%). Fewer asthma patients made critical errors with ELLIPTA after reading the PIL vs: DISKUS (3/70 (4%) vs 9/70 (13%), P=0.221); MDI (2/32 (6%) vs 8/32 (25%), P=0.074) and significantly fewer vs Turbuhaler (3/60 (5%) vs 20/60 (33%), P<0.001). More asthma and COPD patients preferred ELLIPTA over the other devices (all P⩽0.002). Significantly, fewer COPD patients using ELLIPTA made critical errors after reading the PIL vs other inhalers. More asthma and COPD patients preferred ELLIPTA over comparator inhalers.

Assessing the effect of culturally specific audiovisual educational interventions on attaining self-management skills for chronic obstructive pulmonary disease in Mandarin- and Cantonese-speaking patients: a randomized controlled trial

BACKGROUND

Patient education is a key component in the management of chronic obstructive pulmonary disease (COPD). Delivering effective education to ethnic groups with COPD is a challenge. The objective of this study was to develop and assess the effectiveness of culturally and linguistically specific audiovisual educational materials in supporting self-management practices in Mandarin- and Cantonese-speaking patients.

METHODS

Educational materials were developed using participatory approach (patients involved in the development and pilot test of educational materials), followed by a randomized controlled trial that assigned 91 patients to three intervention groups with audiovisual educational interventions and one control group (pamphlet). The patients were recruited from outpatient clinics. The primary outcomes were improved inhaler technique and perceived self-efficacy to manage COPD. The secondary outcome was improved patient understanding of pulmonary rehabilitation procedures.

RESULTS

Subjects in all three intervention groups, compared with control subjects, demonstrated postintervention improvements in inhaler technique (P<0.001), preparedness to manage a COPD exacerbation (P<0.01), ability to achieve goals in managing COPD (P<0.01), and understanding pulmonary rehabilitation procedures (P<0.05).

CONCLUSION

Culturally appropriate educational interventions designed specifically to meet the needs of Mandarin and Cantonese COPD patients are associated with significantly better understanding of self-management practices. Self-management education led to improved proper use of medications, ability to manage COPD exacerbations, and ability to achieve goals in managing COPD.

CLINICAL IMPLICATION

A relatively simple culturally appropriate disease management education intervention improved inhaler techniques and self-management practices. Further research is needed to assess the effectiveness of self-management education on behavioral change and patient empowerment strategies.

Empowering family physicians to impart proper inhaler teaching to patients with chronic obstructive pulmonary disease and asthma

BACKGROUND

Patients with chronic obstructive pulmonary disease (COPD) and asthma depend on inhalers for management, but critical errors committed during inhaler use can limit drug effectiveness. Outpatient education in inhaler technique remains inconsistent due to limited resources and inadequate provider knowledge.

OBJECTIVE

To determine whether a simple, two-session inhaler education program can improve physician attitudes toward inhaler teaching in primary care practice.

METHODS

An inhaler education program with small-group hands-on device training was instituted for family physicians (FP) in British Columbia and Alberta. Sessions were spaced one to three months apart. All critical errors were corrected in the first session. Questionnaires surveying current inhaler teaching practices and attitudes toward inhaler teaching were distributed to physicians before and after the program.

RESULTS

Forty-one (60%) of a total 68 participating FPs completed both before and after program questionnaires. Before the program, only 20 (49%) reported providing some form of inhaler teaching in their practices, and only four (10%) felt fully competent to teach patients inhaler technique. After the program, 40 (98%) rated their inhaler teaching as good to excellent. Thirty-four (83%) reported providing inhaler teaching in their practices, either by themselves or by an allied health care professional they had personally trained. All stated they could teach inhaler technique within 5 min. Observation of FPs during the second session by certified respiratory educators found that none made critical errors and all had excellent technique.

CONCLUSION

A physician inhaler education program can improve attitudes toward inhaler teaching and facilitate implementation in clinical practices.

Expert Nordic perspectives on the potential of novel inhalers to overcome unmet needs in the management of obstructive lung disease

The effective self-management of obstructive lung disease is dependent upon the patient achieving good inhaler technique. However, many current inhalers are complicated to use, which may lead to handling difficulties. These difficulties can cause clinically relevant errors, whereby pharmacotherapy fails to achieve adequate lung deposition and therapeutic effect. In this report, the potential of novel inhaler devices to overcome unmet needs in the management of obstructive lung disease is considered by a panel of Nordic experts. The panel concludes that innovative inhalers can contribute to good disease management and better use of healthcare resources.

Suboptimal inhaler medication adherence and incorrect technique are common among chronic obstructive pulmonary disease patients

Patients with chronic obstructive pulmonary disease (COPD) are routinely prescribed one or more inhaled medications. Adherence to inhaler medications and correct inhaler device technique are crucial to successful COPD management. The goals of this study were to estimate adherence and inhaler technique in a cohort of COPD patients. This was an observational study conducted on a sample of 150 COPD patients. Medication adherence was assessed using the Medication Adherence Report Scale (MARS). Inhaler technique was assessed using standardized checklists. Clinical data were collected using a proforma. Of the 150 patients (mean age 70.3 years, 52% male), 58% reported suboptimal adherence (MARS ≤ 24). High adherence to therapy (MARS = 25) was associated with older age (p = 0.001), but not any of the other studied variables. Medication non-adherence was not associated with COPD exacerbations. Errors (≥ 1) in inhaler technique were common across all of the types of inhaler devices reportedly used by patients, with the highest proportion of errors among Turbuhaler users (83%) and the least proportion of errors among Handihaler users (50%). No clinical variables were associated with errors in inhaler technique. Suboptimal adherence and errors in inhaler technique are common among COPD patients. No clinical variables to assist in the prediction of medication non-adherence and poor inhaler technique were identifiable. Consequently, regular assessment of medication adherence and inhaler technique should be incorporated into routine clinical practice to facilitate improved health outcomes among patients with COPD.

A review of the value of innovation in inhalers for COPD and asthma

BACKGROUND

Appropriate use of inhaled therapies for asthma and chronic obstructive pulmonary disease (COPD) is critical to ensuring good patient outcomes, efficient use of healthcare resources and limiting the effects of high-morbidity. The appropriate choice of inhaler and active therapy, incorporating patient preferences, can help improve treatment adherence and long-term outcomes. Despite this, many current inhalers are non-intuitive to use, and require extensive training.

METHODS

In this review, an expert panel considers the evidence for the use of inhaler devices in management of COPD and asthma. The panel also evaluates the value of innovation in inhaler technologies, which optimise the use of existing molecules from a clinical, economic and societal perspective.

CONCLUSIONS

The panel conclusion is that there remains a substantial unmet need in inhaler technology and that innovation in inhaler devices can provide real-world health benefits to patients. Furthermore, we recommend that these innovations should be supported by healthcare systems through appropriate pricing and reimbursement mechanisms.