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Chronic respiratory diseases (CRDs) are diseases of the respiratory tract and are among the most prominent causes of disability and mortality globally(1). Chronic obstructive pulmonary disease (COPD) and lung cancer are among the leading cause of death among all CRDs(2). Evidence showed that diet, particularly ultra-processed foods (UPFs) are strongly associated with cardiovascular disease, diabetes, cancer, and depression(3). However, the link between UPFs intake and CRDs has rarely been investigated. we aimed to examine the association between UPF consumption and risk of mortality due to CRDs overall, COPD and lung cancer among adults in the USA. A total of 96,607 participants aged 55 years and over were obtained from Prostate, Lung, Colorectal and Ovarian (PLCO) cancer study, a randomised trial designed to investigate the effects of screening on cancer-related mortality. However, data collected also afforded the opportunity to examine the relationships between UPF intake and mortality caused by respiratory diseases. Dietary history of participants was collected at baseline using a validated food frequency questionnaire as was the presence of respiratory diseases. Food items were grouped into one of the four NOVA food classification system(4). Cox regression was fitted to estimate the risk of all-cause mortality and cause-specific mortality due to increased consumption of UPFs over time. Competing risk regression was used to account for the competing risks events and effect of participant loss. During the follow-up period of 1,379,655.5 person-years (median 16.8 years), 28700 all-cause, 4,901 all respiratory, 2,015 lung cancer and 1,536 COPD mortalities occurred. A dose-response association was found between higher UPF intake and mortality from all respiratory diseases and COPD, but not lung cancer. After considering competing events, higher intake of UPF increased the risk of mortality from all respiratory diseases by 10% (HR: 1.10; 95% CI: 1.01, 1.21) and COPD by 20% (HR: 1.20; 95% CI: 1.02, 1.42). After imputation for missing data, the risk of lung cancer increased by 25% among participants in the highest quintile of UPF intake. The PLCO trial data highlighted that consumption of UPF increased respiratory mortality, among those with COPD, however further mechanistic studies are recommended to further clarify the link between UPF and lung cancer. This study also indicated that a high intake of UPF generally increases the risk of mortality of those with respiratory diseases and contributes to a large body of evidence indicating that higher UPF consumption increases the overall risk of mortality.
This study aimed to develop the conversation tool “I-HARP for COPD” for timely identification of palliative care needs in Dutch patients with chronic obstructive pulmonary disease (COPD).
Methods
An iterative and participatory research design was used to develop “I-HARP for COPD”. There were 2 phases to the development of “I-HARP for COPD”: content development and testing. A review of current literature, parallel focus groups, and a questionnaire among experts were used to develop the content of “I-HARP for COPD”. “I-HARP for COPD” was then assessed by health-care professionals (HCPs) in clinical practice for understanding, difficulty, and relevance.
Results
A total of 46 HCPs, 6 patients, 1 informal caregiver, and 1 bereaved informal caregiver participated in this study. “I-HARP for COPD” included 14 screening questions, additional in-depth questions, and recommendations to address identified needs. The content of “I-HARP for COPD” was accepted by 86.2% of the HCPs.
Significance of results
“I-HARP for COPD” was successfully developed for providing guidance in the palliative care of Dutch patients with COPD and their informal caregivers. By supporting HCPs with “I-HARP for COPD”, they are better able to timely identify and direct palliative care needs.
Chronic obstructive pulmonary disease (COPD) is a respiratory disease characterized by a limitation in airflow that is not fully reversible. It includes chronic bronchitis and emphysema. Smoking is the most common risk factor for COPD. However, exposures to biofuels, air pollution and other chemical irritants are common factors in certain areas of the world. It leads to alveolar damage, increased mucus production, air trapping, hyperinflation and airflow obstruction.
Women with a history of preeclampsia (PE) have a greater risk of pulmonary arterial hypertension (PAH). In turn, pregnancy at high altitude is a risk factor for PE. However, whether women who develop PE during highland pregnancy are at risk of PAH before and after birth has not been investigated. We tested the hypothesis that during highland pregnancy, women who develop PE are at greater risk of PAH compared to women undergoing healthy highland pregnancies. The study was on 140 women in La Paz, Bolivia (3640m). Women undergoing healthy highland pregnancy were controls (C, n = 70; 29 ± 3.3 years old, mean±SD). Women diagnosed with PE were the experimental group (PE, n = 70, 31 ± 2 years old). Conventional (B- and M-mode, PW Doppler) and modern (pulsed wave tissue Doppler imaging) ultrasound were applied for cardiovascular íííassessment. Spirometry determined maternal lung function. Assessments occurred at 35 ± 4 weeks of pregnancy and 6 ± 0.3 weeks after birth. Relative to highland controls, highland PE women had enlarged right ventricular (RV) and right atrial chamber sizes, greater pulmonary artery dimensions and increased estimated RV contractility, pulmonary artery pressure and pulmonary vascular resistance. Highland PE women had lower values for peripheral oxygen saturation, forced expiratory flow and the bronchial permeability index. Differences remained 6 weeks after birth. Therefore, women who develop PE at high altitude are at greater risk of PAH before and long after birth. Hence, women with a history of PE at high altitude have an increased cardiovascular risk that transcends the systemic circulation to include the pulmonary vascular bed.
The mammalian respiratory system or lung is a tree-like branching structure, and the main site of gas exchange with the external environment. Structurally, the lung is broadly classified into the proximal (or conducting) airways and the distal alveolar region, where the gas exchange occurs. In parallel with the respiratory tree, the pulmonary vasculature starts with large pulmonary arteries that subdivide rapidly ending in capillaries adjacent to alveolar structures to enable gas exchange. The NOTCH signalling pathway plays an important role in lung development, differentiation and regeneration post-injury. Signalling via the NOTCH pathway is mediated through activation of four NOTCH receptors (NOTCH1-4), with each receptor capable of regulating unique biological processes. Dysregulation of the NOTCH pathway has been associated with development and pathophysiology of multiple adult acute and chronic lung diseases. This includes accumulating evidence that alteration of NOTCH3 signalling plays an important role in the development and pathogenesis of chronic obstructive pulmonary disease, lung cancer, asthma, idiopathic pulmonary fibrosis and pulmonary arterial hypertension. Herein, we provide a comprehensive summary of the role of NOTCH3 signalling in regulating repair/regeneration of the adult lung, its association with development of lung disease and potential therapeutic strategies to target its signalling activity.
Older adults are disproportionately affected by many chronic lung diseases. Numerous normal physiologic changes occur in the lungs with age, from reduced parenchymal elastic recoil to thoracic cage distortion. These changes impact pulmonary pathophysiology and disease diagnosis. Clinicians should be cognizant of geriatric issues that can impact diagnosis, treatment, and the occurrence of adverse events secondary to treatment. For example, multimorbidity, the co-occurrence of multiple comorbidities, is more common with increasing age. Additionally, people with chronic lung diseases have a higher burden of geriatric syndromes, such as frailty, functional impairment, falls, and social isolation. Older adults are at increased risk of severe morbidity from acute lung conditions such as pneumonia and pulmonary embolism. Treatment of older patients in the intensive care unit requires special attention to geriatric issues (called “age-friendly care”) that will improve the quality of their care. This chapter reviews the natural history of pulmonary system aging, discusses the most commonly encountered chronic lung diseases with aging, and briefly examines special issues with caring for older adults in a critical care setting.
Compromised nutritional status is associated with a poor prognosis in chronic obstructive pulmonary disease (COPD) patients. However, the impact of nutritional support in this group of patients is controversial. The present study systematically reviewed the effect of energy and or protein supplements or food fortification on anthropometry and muscle strength of COPD patients. We searched MEDLINE (PubMed), EMBASE, Cochrane Library and Scopus for all published randomised clinical trials without language restriction up to May 2021. Three reviewers performed study selection and data extraction independently. We judged the risk of bias by RoB 2 and the certainty of evidence by the GRADE approach. We included thirty-two randomised controlled trials and compiled thirty-one of them (1414 participants) in the random-effects model meta-analyses. Interventions were energy and/or protein oral nutritional supplements or food fortification added to the diet for at least one week. Pooled analysis revealed that nutritional interventions increased body weight (muscle circumference (MD) = 1·44 kg, 95 % CI 0·81, 2·08, I2 = 73 %), lean body mass (standardised mean difference (SMD) = 0·37; 95 % CI 0·15, 0·59, I2 = 46 %), midarm muscle circumference (MD = 0·29 mm2, 95 % CI 0·02, 0·57, I2 = 0 %), triceps skinfold (MD = 1·09 mm, 95 % CI 0·01, 2·16, I2 = 0 %) and handgrip strength (SMD = 0·39, 95 % CI 0·07, 0·71, I2 = 62 %) compared with control diets. Certainty of evidence ranged from very low to low, and most studies were judged with some concerns or at high risk of bias. This meta-analysis revealed, with limited evidence, that increased protein and/or energy intake positively impacts anthropometric measures and handgrip strength of COPD patients.
A 55-year-old gravida 3, para 3, perimenopausal female presents with complaints of pelvic pressure, abnormal uterine bleeding, and urinary frequency. Her evaluation reveals uterine fibroids. A trial of hormonal treatment with iron supplementation failed to resolve her symptoms and the patient desires definitive treatment. A hysterectomy is planned. Her medical history is significant for chronic obstructive pulmonary disease (COPD) and a 25 pack-year history of cigarette smoking. Her surgical history included cholecystectomy and bilateral tubal ligation. Her medications include a long-acting muscarinic antagonist inhaler, norethindrone 5 mg daily, and oral iron supplement. She has no shortness of breath at rest, but reports a chronic cough and difficulty walking up more than one flight of stairs. She has no chest pain with activity and no family history of cardiovascular disease.
1. Chronic obstructive pulmonary disease (COPD) is the preferred term for the conditions in patients with airflow obstruction who were previously diagnosed as having chronic bronchitis or emphysema.
2. A diagnosis of COPD should be considered in patients over the age of 35 who have a risk factor (generally smoking) and who present with exertional breathlessness, chronic cough, regular sputum production, frequent winter ‘bronchitis’ or wheeze.
3. There is no single diagnostic test for COPD.
4. Co-morbidities are common in COPD and should be actively identified.
5. Clinicians should be aware that they are likely to underestimate survival in an acute exacerbation of COPD treated by invasive mechanical ventilation.
This study has two main objectives: to describe the prevalence of undetected chronic obstructive pulmonary disease (COPD) in a clinical sample of smokers with severe mental illness (SMI), and to assess the value of the Tobacco Intensive Motivational Estimated Risk tool, which informs smokers of their respiratory risk and uses brief text messages to reinforce intervention.
Method
A multicenter, randomized, open-label, and active-controlled clinical trial, with a 12-month follow-up. Outpatients with schizophrenia (SZ) and bipolar disorder were randomized either to the experimental group—studied by spirometry and informed of their calculated lung age and degree of obstruction (if any)—or to the active control group, who followed the 5 A’s intervention.
Results
The study sample consisted of 160 patients (71.9% SZ), 78.1% of whom completed the 12-month follow-up. Of the patients who completed the spirometry test, 23.9% showed evidence of COPD (77.8% in moderate or severe stages). TIMER was associated with a significant reduction in tobacco use at week 12 and in the long term, 21.9% of patients reduced consumption and 14.6% at least halved it. At week 48, six patients (7.3%) allocated to the experimental group achieved the seven-day smoking abstinence confirmed by CO (primary outcome in terms of efficacy), compared to three (3.8%) in the control group.
Conclusion
In this clinical pilot trial, one in four outpatients with an SMI who smoked had undiagnosed COPD. An intensive intervention tool favors the early detection of COPD and maintains its efficacy to quit smoking, compared with the standard 5 A’s intervention.
Chronic obstructive pulmonary disease (COPD) is a chronic respiratory disease that may have a negative impact on both patients’ quality of life and survival. Patients with COPD frequently suffer from heart failure (HF), likely owing to several shared risk factors.
Aim:
To evaluate the differences in treatment of COPD with and without HF comorbidity according to COPD severity in the general practitioner setting.
Methods:
We conducted an observational, retrospective study using data obtained from the Italian Health Search Database, which collects information generated by the routine activity of general practitioners. The study sample included 225 patients with COPD, alone or combined with HF.
Findings:
It has been found that the prevalence of some comorbidities such as diabetes and HF significantly increases with the severity of COPD. Regarding pharmacological treatment, a reduction in the prescription of individually administered long-acting β 2-agonists (LABAs) and long-acting anticholinergics (LAMAs) has been observed with increasing severity of the disease. Moreover, an increase in the prescription of both the combination of the two bronchodilators (LABA + LAMA) and their association with inhaled corticosteroids has been observed with increasing severity of COPD. The prescription of β-blockers in patients with COPD suffering from HF comorbidity decreases from 100% in stage I to less than 50% in the other stages of COPD. This study shows that general practitioners do not follow the guidelines recommendations for the management of patients with COPD in the different stages of the disease, with and without HF comorbidity, as well as in the management of HF. Further efforts must be made to ensure adequate treatment for these patients.
It is important to capture all health effects of interventions in cost-utility analyses conducted under a societal or healthcare perspective. However, this is rarely done. Household spillovers (health effects on patients’ other household members) may be particularly likely in the context of technologies and interventions to change behaviors that are interdependent in the household. Our objective was to prospectively collect outcome data from household members and illustrate how these can be included in a cost-utility analysis of a behavior change intervention in chronic obstructive pulmonary disease (COPD).
Methods
Data were collected from patients’ household members (n = 153) alongside a randomized controlled trial of a COPD self-management intervention. The impact of the intervention on household members’ EQ-5D-5L scores (primary outcome), was evaluated. Analyses were then carried out to estimate household members’ quality-adjusted life-years (QALYs) and assess the impact of including these QALYs on cost-effectiveness.
Results
The intervention had a negligible spillover on household members’ EQ-5D-5L scores (−0.007; p = .75). There were also no statistically significant spillovers at the 5 percent level in household member secondary outcomes. In the base-case model, the inclusion of household member QALYs in the incremental cost-effectiveness ratio (ICER) denominator marginally increased the ICER from GBP 10,271 (EUR 13,146) to GBP 10,991 (EUR 14,068) per QALY gained.
Conclusions
This study demonstrates it is feasible to prospectively collect and include household members’ outcome data in cost utility analysis, although the study highlighted several methodological issues. In this case, the intervention did not impact significantly on household members’ health or health behaviors, but inclusion of household spillovers may make a difference in other contexts.
This retrospective cohort study compared rates of emergency department (ED) visits after a diagnosis of chronic obstructive pulmonary disease (COPD) in the three Aboriginal groups (Registered First Nations, Métis and Inuit) relative to a non-Aboriginal cohort.
Methods
We linked eight years of administrative health data from Alberta and calculated age- and sex-standardized ED visit rates in cohorts of Aboriginal and non-Aboriginal individuals diagnosed with COPD. Rate ratios (RR) with 95% confidence intervals (CIs) were calculated in a Poisson regression model that adjusted for important sociodemographic factors and comorbidities. Differences in ED length of stay (LOS) and disposition status were also evaluated.
Results
A total of 2,274 Aboriginal people and 1,611 non-Aboriginals were newly diagnosed with COPD during the study period. After adjusting for important sociodemographic and clinical factors, the rate of all-cause ED visits in all Aboriginal people (RR=1.72, 95% CI: 1.67, 1.77), particularly among Registered First Nations people (RR=2.02; 95% CI: 1.97, 2.08) and Inuit (RR=1.28; 95% CI: 1.22, 1.35), were significantly higher than that in non-Aboriginals, while ED visit rates were significantly lower in the Métis (RR=0.94; 95% CI: 0.90, 0.98). The ED LOS in all Aboriginal groups were significantly lower than that of the non-Aboriginal group.
Conclusions
Aboriginal people with COPD use almost twice the amount of ED services compared to their non-Aboriginal counterparts. There are also important variations in patterns of ED services use among different Aboriginal groups with COPD in Alberta.
The Ottawa Heart Failure Risk Scale (OHFRS) and the Ottawa COPD Risk Scale (OCRS) were developed in order to estimate medical risk and to help guide disposition decisions for patients presenting to the ED with acute exacerbations of heart failure (HF) and COPD. We sought to determine physician attitudes towards these two new risk scales and to identify potential barriers to their ED implementation.
Methods
Two self-administered online surveys were distributed to the Canadian Association of Emergency Physicians. The surveys each consisted of 16 questions relating to the OHFRS and OCRS. The primary outcome measures were the overall physician rating of the two risk scales. Secondary outcome measures assessed the likelihood of risk scale implementation into Canadian EDs, as well as the perceived barriers to such implementation. Descriptive statistics were used.
Results
For the OHFRS survey, we received responses from 195 emergency physicians (35.7%). Overall, 74.4% approved of the risk scale based on a Likert rating of 4 or 5 and 66.7% believed that the risk scale would be implemented at their hospital. For the OCRS survey, we received responses from 208 emergency physicians (38.1%). Overall, 76.9% approved of the risk scale based on a Likert rating of 4 or 5 and 70.2% believed that the risk scale would be implemented at their hospital.
Conclusions
Canadian emergency physicians are very supportive of the new OHFRS and OCRS. We believe these risk scales will assist physicians with making safe and efficient disposition decisions and improve outcomes for patients suffering from HF and COPD.
Pulmonary rehabilitation (PR), a programme of exercise, education and psycho-social support, is recommended for patients with chronic obstructive pulmonary disease but referral rates are relatively low compared with need.
Aim
Working with primary care clinicians (GPs and practice nurses) from eight practices, this project developed strategies for influencing clinician and patient behaviours as a means of increasing referral rates for PR.
Methods
A participatory action research design was employed. Semi-structured questionnaires captured clinicians’ baseline knowledge of PR and their ideas for increasing referrals. Actionable changes were then recommended. Audits (at baseline, mid-point and end of project) were used to assess and initiate improvements in the quality of practice data about PR referrals. The impacts of these changes were explored via further clinician surveys (free text questionnaire). Semi-structured questionnaires, posted to patients eligible for PR, assessed their characteristics, and, where applicable, their views on PR referral processes and reasons for not wanting PR.
Findings
The baseline survey of clinicians (n=22) revealed inadequate knowledge about PR, particularly among GPs. Actionable changes recommended included in-house education sessions, changes to practice protocols, and ‘pop-ups’ and memory aids (mugs and coasters) to prompt clinician/patient discussions about PR. Audit findings resulted in changes to improve the quality and availability of coded information about patients eligible for PR. These changes, supported by clinicians (n=9) in the follow-up survey, aimed to facilitate and increase the quality of patient/clinician discussions about PR. Findings from the patient survey (n=126, response rate 25.7%) indicate that such changes will increase the uptake of PR as patients who accepted a referral for PR provided more positive feedback about their discussions with clinicians.
Conclusions
The strategies introduced were relatively easy to implement and the anticipated advantage is more patients accessing the health and quality of life benefits that PR offers.
Under conditions in which palliative care has not yet become part of clinical practice, the differences in palliative care needs between patients with cancer and other life-limiting diseases can yield knowledge that will be very valuable for future planning. The aim of our investigation was to compare health-related quality of life (HRQoL) for patients with end-stage chronic obstructive pulmonary disease (COPD) and those with non-small-cell lung cancer (NSCLC) in Belgrade, Serbia. We also evaluated the influence of demographic, socioeconomic, and clinical factors on HRQoL for both patient groups.
Method:
This cross-sectional study included 100 NSCLC patients (stages IIIb and IV) and 100 patients with stage IV COPD. Measures included the SF-36 questionnaire, the EORTC QLQ–C30, the St. George's Respiratory Questionnaire, and the Beck Depression Inventory (BDI). Associations of demographic, socioeconomic, and clinical factors with QoL were examined using linear regression analyses.
Results:
The COPD group scored significantly lower compared to NSCLC patients in all SF-36 domains except for bodily pain. Additionally, a significantly higher level of depressive symptoms was observed in COPD patients. A worse physical QoL for COPD patients was independently associated with a longer duration of unemployment, a lack of wage earning, lower Karnofsky Performance Status (KPS) scores, and higher levels of depression. A worse mental QoL for COPD patients was related to a longer duration of disease, poorer KPS scores, and higher BDI scores. The independent variables significantly associated with worse physical and mental QoL of NSCLC patients were lower KPS and higher BDI scores.
Significance of Results:
A worse QoL, a significantly higher level of depressive symptoms, and adverse socioeconomic status in the COPD group imposes the need for development of more intensive psychosocial and community support for COPD patients during implementation of palliative care.
Chronic Obstructive Pulmonary Disease (COPD) can be highly incapacitating, imposing a significant burden on family members, however, limited research has been conducted on psychological health of family carers. Thus, this study examined anxiety and depression symptoms in family carers of people with COPD and their predictors.
Methods:
A cross-sectional study was conducted with family carers and respective patients with COPD. The caregiving situation and the perceived burden, through the Carers’ Assessment of Difficulties Index, were collected from family carers. Patients’ COPD severity and activities limitation were assessed. The Hospital Anxiety and Depression Scale (HADS) was used to assess anxiety and depression symptoms in family carers and patients. Scores ≥8 were considered clinically significant.
Results:
A total of 203 family carers (58.2 ± 14.8 years old; 75.4% female) and respective patients with COPD (69.2 ± 11.5 years old; 36.5% female) were included. Clinically significant anxiety symptoms (HADS-anxiety ≥8) were present in 63.5% (n = 129) of family carers, depression symptoms (HADS-depression ≥8) were in 34% (n = 69) and both were in 27.1% (n = 55). Perceived burden [odds ratio (OR) 1.04, 95% confidence intervals (CI) = 1.01–1.06; 1.05, 95% CI = 1.03–1.07] and patients’ activities limitation (OR 1.32, 95% CI = 1.01–1.79; 1.41, 95% CI = 1.01–1.96) were significant predictors of anxiety and depression symptoms. Anxiety symptoms were also predicted by female gender (OR 0.33, 95% CI = 0.16–0.66) and depression symptoms by older age (OR 1.03, 95% CI = 1.01–1.06).
Conclusion:
Family carers of patients with COPD experience anxiety and depression symptoms. Perceived burden, female gender, older age, and patient's activities limitation were predictors of these distressing symptoms. These findings highlight the need to address family carers’ needs, namely by investigating the effectiveness of supportive interventions on family's psychological health.
According to the World Health Organization (WHO), palliative care (PC) should be available to everyone suffering from life-threatening diseases and should be started early on in the illness trajectory. However, PC is often initiated much later and is restricted to cancer patients. There is a need for more knowledge about how early PC can be implemented in clinical practice. The purpose of our study was to document the best evidence on methods for early identification (EI) of palliative trajectories in cancer, chronic heart failure (CHF), and chronic obstructive pulmonary disease (COPD) populations, and to identify preconditions for early integration of general PC in hospitals and outcomes for patients and relatives.
Method:
A comprehensive systematic review of methods, preconditions, and outcomes was conducted via an electronic literature search of publications between 2002 and September 2012. A final sample of 44 papers was reviewed in detail.
Results:
Our study identified disease-specific and general methods for EI of patients who might benefit from PC. Prognostication of end-stage disease based on (holistic) clinical judgment, prognostic factors, and/or care needs are the most frequently recommended methods. A number of interacting disease-, staff-, user-, and organization-specific barriers need to be overcome in order to implement early integration of PC in clinical practice. Early integration of PC may lead to better symptom management, prolonged survival, and better quality of life.
Significance of Results:
No methods can be recommended for routine clinical practice without further validation. There is an urgent need to develop and evaluate methods based on the holistic assessment of symptoms or needs. The barriers to early integration of PC are most extensive with regard to CHF and COPD. Professional training and education are recommended to facilitate early implementation of PC. The evidence about outcome is sparse and mostly relates to cancer populations receiving specialized PC.