Validation of a Novel Clinical Dyspnea Scale - A Retrospective Pilot Study

Objective: to examine the validity of a novel dyspnea scale, Edmonton Dyspnea Inventory in idiopathic pulmonary fibrosis (IPF). Methods: Edmonton Dyspnea Inventory (EDI), is a clinical instrument to measure dyspnea severity with activities of daily living, exercise and rest using a numeric rating scale (0 -10). Consecutive IPF patients (2012-2018) with baseline MRC and EDI were included. To validate EDI, psychometric analysis was conducted. Correlations between EDI, MRC and lung function were examined. Group-based trajectory modeling was used to group patients based on dyspnea severity. Net Reclassification Improvement (NRI) was calculated to assess the improvement in 1-year mortality prediction by adding trajectory groups to MRC grade. Results: 100 consecutive IPF patients were identified; mean age 73 years (SD = 9) and 65% males; 73% were in MRC grades ≥3. Item analysis showed all 8 EDI components have excellent discrimination power with ability to differentiate patients with varying dyspnea severity. EDI has good internal consistency (Cronbach α = .92). Exploratory factor analysis showed a one-factor solution with loadings from .66 to .89 suggesting 8 EDI components measured essentially one dimension of dyspnea. All EDI components were correlated with MRC and some with lung function. Modeling data identified three EDI dyspnea severity groups with differing mortality (P = .009). The addition of EDI dyspnea severity groups to the MRC score improved 1-year mortality prediction (NRI = .66; 95% CI, .18-1.14). Conclusions: EDI is a valid dyspnea instrument, correlated with MRC and lung function. It can categorize IPF patients into 3 dyspnea severity groups associated with increased mortality. Key Message: We describe the development of a novel scale, Edmonton Dyspnea Inventory, that facilitates measurement of dyspnea severity in the context of daily activities in patients with IPF. The results indicate that the new instrument is valid and correlated to MRC. It identifies 3 categories of severity not recognized by MRC with impact on mortality. Knowledge of dyspnea severity can help triage patients and assign appropriate therapies.

A Retrospective, Descriptive Study of Dyspnea Management in a Multidisciplinary Interstitial Lung Disease Clinic

Background: Fibrotic interstitial lung diseases (F-ILDs) have a high symptom burden with progressive dyspnea as a primary feature. Breathlessness is underrecognized and undertreated primarily due to lack of consensus on how to best measure and manage it. Several nonpharmacologic and pharmacologic strategies are published in the literature, however there is a paucity of real-world data describing their systematic implementation. Objectives: We describe the types of breathlessness interventions and timing of implementation in our multidisciplinary collaborative care (MDC) ILD clinic and the impact of our approach on dyspnea trajectory and acute care use in ILD. Methods: A retrospective, observational study of deceased ILD patients seen in our clinic (2012-2018) was conducted. Patients were grouped by baseline medical research council (MRC) grade and dyspnea interventions from clinic enrolment until death were examined. Healthcare usage in the last 6 months of life was collected through Alberta's administrative database. Results: Eighty-one deceased ILD patients were identified. Self management advice was provided to 100% of patients. Pulmonary rehabilitation (PR) and home care (HC) referrals were made in 40% and 57% of patients, respectively. Eighty percent were treated with oxygen and 53% with opioids during the study. MDC-initiated referral to PR and HC, oxygen and opioid prescriptions were provided a median of 13, 9, 11, and 4 months prior to death, respectively. Stepwise implementation of interventions was observed more commonly in MRC 1-2 and concurrent implementation in MRC 4-5. Conclusions: Our clinic's approach allows early and systematic dyspnea management.

Buccal Hydromorphone Syrup for Managing Dyspnea in Idiopathic Pulmonary Fibrosis

Context:

Dyspnea is a highly distressing symptom that characterizes idiopathic pulmonary fibrosis (IPF), a common idiopathic interstitial lung disease (ILD) with a high symptom burden, poor quality of life, and early mortality. Though opioids are mentioned in guidelines for dyspnea management, guidance on how and when to initiate opioids is lacking. Different pharmacologic strategies are needed to address different types of dyspnea (baseline, incident, and crisis). Due to a longer onset of action, the oral route (swallowed) may be less effective for prevention of incident dyspnea or for rapid relief of crisis dyspnea, prompting the use of alternative drug delivery strategies for self-management. We inadvertently discovered the efficacy of buccal administration of low dose, low volume hydromorphone oral syrup for dyspnea management in ILD, which has not been previously reported in the literature.

Case Series:

We describe our approach to dyspnea assessment and management in IPF, including use of the Multidimensional Dyspnea Scale (MDDS), a novel instrument yet to be validated that we developed to better identify and categorize dyspnea into the types experienced by a patient with IPF over the course of a day. We then describe how buccal hydromorphone oral syrup is initiated and titrated for dyspnea management in 3 patients at different points in their disease trajectory.

Conclusion:

Buccal hydromorphone oral syrup is effective for dyspnea management across the spectrum of IPF. When integrated into a patient-centered algorithm for symptom assessment and management, it allows for rapid and easy self-management of dyspnea by patients and their caregivers.

Early Integrated Palliative Care Bundle Impacts Location of Death in Interstitial Lung Disease: A Pilot Retrospective Study

BACKGROUND

Interstitial lung diseases (ILDs) comprise a heterogeneous group of fibrotic, progressive pulmonary diseases characterized by poor end-of-life care and hospital deaths. In 2012, we launched our Multidisciplinary Collaborative (MDC) ILD clinic to deliver integrated palliative approach throughout disease trajectory to improve care. We sought to explore the effects of palliative care and other factors on location of death (LOD) of patients with ILD.

METHODS

The MDC-ILD clinic implemented a palliative care bundle including advance care planning (ACP), opiates use, allied health home care engagement, and use of supplemental oxygen and early caregiver engagement in care. Data from patients with ILD who attended the clinic and died between 2012 and 2019 were used to generate scores representing the components and duration of palliative care (palliative care bundle score) and caregiver involvement (caregiver engagement score). We examined the impact of these scores on patients' LOD.

RESULTS

A total of 92 MDC-ILD clinic patients were included, 57 (62%) had home or hospice deaths. Patients who died at home or hospice had higher palliative care bundle scores (10.0 ± 4.0 vs 7.8 ± 3.9, P = .01) and caregiver engagement scores (1.7 ± 0.6 vs 1.3 ± 0.7, P = .01) compared to those who died in hospital. Patients were 1.13 times more likely to die at home or hospice following a 1-point increase in palliative care bundle score (95% CI: 1.01-1.29, P = .04) and 2.38 times more likely following a 1-point increase in caregiver engagement score (95% CI: 1.17-5.15, P = .02).

CONCLUSIONS

Home and hospice deaths are feasible in ILD. Early initiation of palliative care bundle components such as ACP discussions, symptom self-management, caregiver engagement, and close collaboration with allied health home care supports can promote adherence to patient preference for home or hospice deaths.

What Patients With Idiopathic Pulmonary Fibrosis and Caregivers Want: Filling the Gaps With Patient Reported Outcomes and Experience Measures

Idiopathic pulmonary fibrosis is a progressive disease, with a high mortality within the first 3-5 years from diagnosis and a poor quality of life mainly because of the burden of symptoms, such as dyspnea and cough, occurring usually many months before the diagnosis. Although available antifibrotic therapies slow down disease progression, they have no impact on quality of life. Moreover, health care around idiopathic pulmonary fibrosis patients is often "disease-centered" and relies on clinical surrogate outcomes that are poorly related to patients' quality of life and disease experience. Therefore, patients with idiopathic pulmonary fibrosis have several unmet needs in all domains of health that they wish to see recognized and addressed in the context of the treatment of their disease and its complications. In this review, we summarize the care pathway from the patients' perspective, identifying current gaps in care, education, support, and communication among patients with IPF, their caregivers, and care teams during the patient journey. The role of patient-reported outcomes (PROs), PRO measures (PROMs), and patient-reported experience measures (PREMs) in their care is discussed, as well as the need of disease-specific PROs, PROMs, and PREMs.

A comprehensive and practical approach to the management of idiopathic pulmonary fibrosis

Introduction: Idiopathic pulmonary fibrosis (IPF) is a debilitating, progressive, and fatal fibrotic pulmonary disease with a prognosis comparable to that of lung cancer. IPF management is a complex process that involves pharmacological and nonpharmacological interventions, extensive patient education, and addressing patient needs that change through the course of the illness. Areas covered: This review summarizes the key aspects of a multifaceted, multidisciplinary, individualized approach to IPF care that incorporates available treatment options, strategies to improve compliance with antifibrotic therapies, pulmonary rehabilitation, and the integration of palliative care for symptom management. Aspects of care discussed include the use of antifibrotic therapy and nonpharmacological treatments, targeted education and psychosocial support, evaluation and management of comorbidities, and early integration of palliative care. Expert opinion: By incorporating this comprehensive approach to disease management, physicians can address most aspects of care for a patient with IPF to optimize survival and quality of life.

Beyond Idiopathic Pulmonary Fibrosis Diagnosis: Multidisciplinary Care With an Early Integrated Palliative Approach Is Associated With a Decrease in Acute Care Utilization and Hospital Deaths

CONTEXT

Idiopathic pulmonary fibrosis (IPF) is a progressive, incurable interstitial lung disease with heavy symptom burden and poor quality of life. The last year of life is characterized by increased acute care utilization and hospital deaths. Clinical guidelines recommend early integration of palliative care but are rarely implemented. In 2012, we reorganized our clinic into a multidisciplinary team comprising two pulmonologists (expertise in interstitial lung disease and palliative respiratory care, respectively), nurse, respiratory therapist, physiotherapist, and a dietitian. We adopted an early integrated palliative approach with a focus on early symptom management and advance care planning starting at the first clinic visit. We designed a Multidisciplinary collaborative (MDC) care model with emphasis on community-based care to manage patients in their homes and support caregivers.

OBJECTIVES

Exploratory analysis of this model's association with acute care utilization in the last year of life and location of death was undertaken.

METHODS

Data from deceased IPF patients before and after 2012 (non-MDC and MDC care model, respectively) were collected, and statistical analysis was performed.

RESULTS

Patients in MDC care were 24.2 times less likely to have respiratory-related emergency room visits (95% CI: 3.12-187.44, P = 0.002), 2.32 times less likely to have respiratory-related hospitalizations (95% CI: 0.95-5.6, P = 0.064). The odds of achieving a home or hospice death in MDC care were 9.2 times compared to non-MDC care, who die mostly in the hospital (95% CI: 1.14-75, P = 0.037).

CONCLUSIONS

MDC care model for IPF was associated with reduced health care use in the last year of life and more home deaths.