Abstract
Purpose: To explore how patients who refuse referral to Pulmonary Rehabilitation (PR) appraise acute exacerbations of Chronic Obstructive Pulmonary Disease (COPD), in the context of having ...considered and declined PR. Method: Six participants recently hospitalized with an acute exacerbation COPD who refused a referral to PR subsequent to hospital discharge participated in in-depth interviews. Transcripts were subjected to Interpretative Phenomenological Analysis (IPA). Results: Three conceptual themes emerged comprising: "Construction of the self", reflecting the impact of the acute exacerbation on personal identity; "Relinquishing control", describing participants" struggle to maintain agency following an acute event; and "Engagement with others", embodying participants' sensitivity and responsiveness to interactions with others. Conclusions: Prominent in theses participants' narratives are self-conscious cognitions which appear founded in shame and stigmatization. These cognitions seem to reflect challenges to self-worth and appear associated with reduced help-seeking and isolation. Perceived personal culpability for COPD appears to sensitize participants' towards their interactions with health care professionals, construed as critical and judgmental which may increase avoidant behaviors, such as refusal of PR. When introducing PR, professionals should be aware of such sensitivities and facilitate open discussion which offers, time, compassion and understanding as a means of facilitating uptake.Implications for RehabilitationPatients who decline referral to Pulmonary Rehabilitation report self-conscious cognitions (i.e. shame, guilt, fear of others evaluation) associated with lowered self-worth and reduced help-seeking.When introducing Pulmonary Rehabilitation health care professionals need to be mindful of patients' sensitivities to being shamed which stem from perceived culpability for COPD.Professionals should facilitate an open discussion with patients which offers, time, compassion and understanding as a means of facilitating Pulmonary Rehabilitation uptake.Compassion focused interventions which encourage trust and safety may promote active partnership working and facilitate engagement in Pulmonary Rehabilitation.
Objective To investigate whether an early rehabilitation intervention initiated during acute admission for exacerbations of chronic respiratory disease reduces the risk of readmission over 12 months ...and ameliorates the negative effects of the episode on physical performance and health status.Design Prospective, randomised controlled trial.Setting An acute cardiorespiratory unit in a teaching hospital and an acute medical unit in an affiliated teaching district general hospital, United Kingdom.Participants 389 patients aged between 45 and 93 who within 48 hours of admission to hospital with an exacerbation of chronic respiratory disease were randomised to an early rehabilitation intervention (n=196) or to usual care (n=193).Main outcome measures The primary outcome was readmission rate at 12 months. Secondary outcomes included number of hospital days, mortality, physical performance, and health status. The primary analysis was by intention to treat, with prespecified per protocol analysis as a secondary outcome.Interventions Participants in the early rehabilitation group received a six week intervention, started within 48 hours of admission. The intervention comprised prescribed, progressive aerobic, resistance, and neuromuscular electrical stimulation training. Patients also received a self management and education package.Results Of the 389 participants, 320 (82%) had a primary diagnosis of chronic obstructive pulmonary disease. 233 (60%) were readmitted at least once in the following year (62% in the intervention group and 58% in the control group). No significant difference between groups was found (hazard ratio 1.1, 95% confidence interval 0.86 to 1.43, P=0.4). An increase in mortality was seen in the intervention group at one year (odds ratio 1.74, 95% confidence interval 1.05 to 2.88, P=0.03). Significant recovery in physical performance and health status was seen after discharge in both groups, with no significant difference between groups at one year.Conclusion Early rehabilitation during hospital admission for chronic respiratory disease did not reduce the risk of subsequent readmission or enhance recovery of physical function following the event over 12 months. Mortality at 12 months was higher in the intervention group. The results suggest that beyond current standard physiotherapy practice, progressive exercise rehabilitation should not be started during the early stages of the acute illness.Trial registration Current Controlled Trials ISRCTN05557928.
Summary Background The BODE index has been shown to predict mortality in COPD. The index includes the 6 min walking test as the measure of exercise capacity. The incremental shuttle walking test ...(ISWT) is an alternative measure of exercise capacity which can be used to prescribe exercise and has been found to correlate well with peak VO2. The objective of the study was to evaluate the incorporation of the ISWT within the BODE index (named the i -BODE) to predict mortality in COPD. Methods Data was analysed from 633 patients with COPD attending pulmonary rehabilitation over an 11 year period, and mortality determined a minimum of one year on from initial assessment. An i -BODE score was calculated using ISWT(m) then Cox regression analysis evaluated the capacity of the index to predict risk of death. Results BMI, ISWT (m), MRC dyspnoea score, pack years and age were all significantly associated with mortality. Cox regression revealed the i -BODE index was an independent and significant predictor of mortality (hazard ratio 1.27 (CI 1.17–1.35), p < 0.001) and Kaplan Meier survival analysis showed each quartile increase in severity in i -BODE score was significantly associated with increased mortality ( p < 0.001 by log rank test). Conclusion We have found the i -BODE index to be an independent predictor of mortality in COPD, even when other strong predictors such as age and pack years are adjusted for. We conclude that the ISWT can be successfully substituted for the 6MWT as an alternative measure of exercise capacity within the BODE index.
ABSTRACT
Background and objective
Establishing the amount of inpatient physical activity (PA) undertaken by individuals hospitalized for chronic respiratory disease is needed to inform interventions. ...This observational study investigated whether PA changes when a person is an inpatient, how long is required to obtain representative PA measures and whether PA varies within a day and between patients of differing lengths of stay.
Methods
A total of 389 participants were recruited as early as possible into their hospitalization. Patients wore a PA monitor from recruitment until discharge. Step count was extracted for a range of wear time criteria. Single‐day intraclass correlation coefficients (ICC) were calculated, with an ICC ≥ 0.80 deemed acceptable.
Results
PA data were available for 259 participants. No changes in daily step count were observed during the inpatient stay (586 (95% CI: 427–744) vs 652 (95% CI: 493–812) steps/day for day 2 and 7, respectively). ICC across all wear time criteria were > 0.80. The most stringent wear time criterion, retaining 80% of the sample, was ≥11 h on ≥1 day. More steps were taken during the morning and afternoon than overnight and evening. After controlling for the Medical Research Council (MRC) grade or oxygen use, there was no difference in step count between patients admitted for 2–3 days (short stay) and those admitted for 7–14 days (long stay).
Conclusion
Patients move little during their hospitalization, and inpatient PA did not increase during their stay. A wear time criterion of 11 waking hours on any single day was representative of the entire admission whilst retaining an acceptable proportion of the initial sample size. Patients may need encouragement to move more during their hospital stay.
Objectively measured inpatient physical activity (PA) was examined for 259 individuals hospitalized due to an acute exacerbation of chronic respiratory disease. PA did not recover as an inpatient, with patients averaging 616 ± 649 steps/day. A single day of PA monitoring provided data representative of the entire inpatient stay.
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Lung volume reduction surgery (LVRS) has been shown to be beneficial in patients with chronic obstructive pulmonary disease, but there is low uptake, partly due to perceived concerns of high ...operative mortality. We aimed to develop an individualised risk score following LVRS.This was a cohort study of patients undergoing LVRS. Factors independently predicting 90-day mortality and a risk prediction score were identified. Reliability of the score was tested using area under the receiver operating characteristic curve (AUROC).237 LVRS procedures were performed. The multivariate analysis factors associated independently with death were: body mass index (BMI)<18.5 kg·m
(OR 2.83, p=0.059), forced expiratory volume in 1 s (FEV
)<0.71 L (OR 5.47, p=0.011) and transfer factor of the lung for carbon monoxide (
) <20% (OR 5.56, p=0.031). A risk score was calculated and total score assigned. AUROC for the risk score was 0.80 and a better predictor than individual components (p<0.01). The score was stratified into three risk groups. Of the total patients, 46% were classified as low risk. Similar improvements in lung function and health status were seen in all groups. The score was introduced and tested in a further 71 patients. AUROC for 90-day mortality in this cohort was 0.84.It is possible to provide an individualised predictive risk score for LVRS, which may aid decision making for both clinicians and patients.
PURPOSE:The Incremental Shuttle Walk Test (ISWT) is an important functional and prognostic marker in chronic disease. Aging has a detrimental effect on exercise performance. The objective of this ...study was to produce normal age-specific values for the ISWT in a healthy British population and to explore whether additional variables improve the accuracy of a predictive equation.
METHODS:Healthy subjects (N = 152), aged 40 to 90 years, were recruited. Data collection occurred over 2 study visits. Anthropometric and demographic data were collected, and lung function and quadriceps maximal voluntary contraction were measured. An accelerometer was worn for 2 consecutive days at home. The Duke Activity Status Index was completed, and the greatest distance from 2 ISWTs was recorded.
RESULTS:One hundred forty subjects (56 men) with mean age (SD) of 59.4 (11.0) years completed 2 ISWTs. Forced expiratory volume in 1 second (FEV1) was 109.1% (14.56%) predicted and ISWT distance was 737 m (183 m). Age-specific normal values for the ISWT were observedmean (lower limit of normal)—40 to 49 years, 824 m (765 m); 50 to 59 years, 788 m (730 m); 60 to 69 years, 699 m (649 m); and 70 years and older, 633 m (562 m). A predictive equation was developed from 114 subjects. Age, body mass index, FEV1, quadriceps maximal voluntary contraction, and Duke Activity Status Index contributed to ISWT distance predicting 50.4% of the variation in performance.
CONCLUSION:We have developed age-specific normal values for performance on the ISWT in a healthy British population. However, even using practical, clinically relevant variables, it is not possible to accurately predict exercise capacity from a regression equation.
Hospitalization represents a major event for the patient with chronic respiratory disease. There is a high risk of readmission, which over the longer term may be related more closely to the ...underlying condition of the patient, such as skeletal muscle dysfunction.
We assessed the risk of hospital readmission at 1 year, including measures of lower limb muscle as part of a larger clinical trial.
Patients hospitalized with an exacerbation of chronic respiratory disease underwent measures of muscle function including quadriceps ultrasound. Independent factors influencing time to hospital readmission or death were identified. Patients were classified into four quartiles based on quadriceps size and compared.
One hundred and ninety-one patients (mean age, 71.6 SD, 9.1 yr) were recruited. One hundred and thirty (68%) were either readmitted or died. Factors associated with readmission or death were age (odds ratio OR, 1.05; 95% confidence interval CI, 1.01-1.08; P = 0.015), Medical Research Council (MRC) dyspnea grade (OR, 4.57; 95% CI, 2.62-7.95; P < 0.001), home oxygen use (OR, 12.4; 95% CI, 4.53-33.77; P < 0.001), quadriceps (rectus femoris) cross-sectional area (Qcsa) (OR, 0.34; 95% CI, 0.17-0.65; P = 0.001), and hospitalization in the previous year (OR, 4.82; 95% CI, 2.42-9.58; P < 0.001). In the multivariate analyses, home oxygen use (OR, 4.80; 95% CI, 1.68-13.69; P = 0.003), MRC dyspnea grade (OR, 2.57; 95% CI, 1.44-4.59; P = 0.001), Qcsa (OR, 0.46; 95% CI, 0.22-0.95; P = 0.035), and previous hospitalization (OR, 3.04; 95% CI, 1.47-6.29; P = 0.003) were independently associated with readmission or death. Patients with the smallest muscle spent more days in hospital than those with largest muscle (28.1 SD, 33.9 vs. 12.2 SD, 23.5 d; P = 0.007).
Smaller quadriceps muscle size, as measured by ultrasound in the acute care setting, is an independent risk factor for unscheduled readmission or death, which may have value both in clinical practice and for risk stratification.
Physical activity (PA) intensity of people living with chronic obstructive pulmonary disease (COPD) is typically evaluated using intensity thresholds developed in younger, healthier populations with ...greater exercise capacity and free from respiratory symptoms. This study therefore compared (i) PA differences between COPD and non-COPD controls using both traditional intensity thresholds and threshold-free metrics that represent the volume and intensity of the whole PA profile, and (ii) explored the influence of exercise capacity on observed differences. Moderate-to-vigorous physical activity (MVPA), average acceleration (proxy for volume, mg) and intensity distribution of activity were calculated for 76 individuals with COPD and 154 non-COPD controls from wrist-worn ActiGraph accelerometry. PA profiles representing the minimum intensity (acceleration, mg) during the most active accumulated 5-960 min were plotted. Estimated VO
and relative intensity were derived from the incremental shuttle walk test distance. Compared to the non-COPD control group, individuals with COPD recorded fewer MVPA minutes (59 vs. 83 min/day), lower overall waking activity (29.1 vs. 36.4 mg) and a poorer waking intensity distribution (-2.73 vs. -2.57). Individuals with COPD also recorded a lower absolute intensity (acceleration, mg) for their most active 5-960 min, but higher intensity relative to their estimated exercise capacity derived from the ISWT. People with COPD have a lower volume and absolute intensity of PA than controls but perform PA at a higher relative intensity. There is a need to move away from absolute intensity thresholds, and towards personalised or relative-intensity thresholds, to reflect reduced exercise capacity in COPD populations.
Patients with COPD experience exacerbations that may require hospitalization. Patients do not always feel supported upon discharge and frequently get readmitted. A Self-management Program of ...Activity, Coping, and Education for COPD (SPACE for COPD), a brief self-management program, may help address this issue.
To investigate if SPACE for COPD employed upon hospital discharge would reduce readmission rates at 3 months, compared with usual care.
This is a prospective, single-blinded, two-center trial (ISRCTN84599369) with participants admitted for an exacerbation, randomized to usual care or SPACE for COPD. Measures, including health-related quality of life and exercise capacity, were taken at baseline (hospital discharge) and at 3 months. The primary outcome measure was respiratory readmission at 3 months.
Seventy-eight patients were recruited (n=39 to both groups). No differences were found in readmission rates or mortality at 3 months between the groups. Ten control patients were readmitted within 30 days compared to five patients in the intervention group (P>0.05). Both groups significantly improved their exercise tolerance and Chronic Respiratory Questionnaire (CRQ-SR) results, with between-group differences approaching statistical significance for CRQ-dyspnea and CRQ-emotion, in favor of the intervention. The "Ready for Home" survey revealed that patients receiving the intervention reported feeling better able to arrange their life to cope with COPD, knew when to seek help about feeling unwell, and more often took their medications as prescribed, compared to usual care (P<0.05).
SPACE for COPD did not reduce readmission rates at 3 months above that of usual care. However, encouraging results were seen in secondary outcomes for those receiving the intervention. Importantly, SPACE for COPD appears to be safe and may help prevent readmission with 30 days.
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