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Tang M, Liu W, Li H, Li F. Greenness and chronic respiratory health issues: a systematic review and meta-analysis. Front Public Health 2023; 11:1279322. [PMID: 38125839 PMCID: PMC10732026 DOI: 10.3389/fpubh.2023.1279322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/10/2023] [Indexed: 12/23/2023] Open
Abstract
Introduction The number of chronic respiratory disease (CRD) individuals worldwide has been continuously increasing. Numerous studies have shown that greenness can improve chronic respiratory health issues through different mechanisms, with inconsistent evidence. By quantitatively summarizing existing studies, our purpose is to determine the connection between greenness exposure and various chronic respiratory health. Methods We conducted a comprehensive search on PubMed, EMBASE, and Web of Science core databases to identify relevant studies on the correlation between greenness exposure and chronic respiratory health issues. Studies published up to January 2023 were included in the search. The study used the most frequent indicator (normalized difference vegetation index [NDVI]) as the definition of greenness exposure. Results We finally identified 35 studies for meta-analysis. We calculated pooled effects across studies using a random-effects model and conducted a subgroup analysis by age and buffer zones to discuss the effects on chronic respiratory health issues. This study showed that 0.1 increments in NDVI were significantly related to lower rates of asthma incidence, lung cancer incidence, and chronic obstructive pulmonary disease (COPD) mortality risk; the pooled RRs were 0.92 (95% CI: 0.85-0.98), 0.62 (95% CI: 0.40-0.95), and 0.95 (95% CI: 0.92- 0.99), respectively. For the age subgroup, the higher greenness exposure level was related to the incidence rate of asthma among teenagers aged 13-18years (RR: 0.91; 95% CI: 0.83-0.99). For the buffer subgroup, a positive relationship with greenness exposure and asthma incidence/prevalence at 200-300m and 800- 1000m buffers, as well as the COPD mortality at 800-1000m buffer, the pooled RRs were 0.92 (95% CI: 0.86-0.98), 0.87 (95% CI: 0.81-0.93), and 0.93 (95% CI: 0.88- 0.98), respectively. Evidence of publication bias was not detected in this study. Discussion Our study is the first global meta-analysis between greenness and various CRDs to report an inverse association. Further research is needed in order to determine the effect of greenness exposure on different CRDs. Therefore, when planning for green development, more consideration must be given to public health and green management as intervention measures. https://www.crd.york.ac.uk/PROSPEROFILES/384029_STRATEGY_20230116.pdf.
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Affiliation(s)
- Mingcheng Tang
- School of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China
| | - Wei Liu
- School of Art, Qufu Normal University, Rizhao, Shandong, China
| | - Haifang Li
- School of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China
| | - Fengyi Li
- School of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, China
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Singh M, Varkki S, Kinimi I, Das RR, Goyal JP, Bhat M, Dayal R, Kalyan P, Gairolla J, Khosla I. Expert group recommendation on inhaled mucoactive drugs in pediatric respiratory diseases: an Indian perspective. Front Pediatr 2023; 11:1322360. [PMID: 38111626 PMCID: PMC10725989 DOI: 10.3389/fped.2023.1322360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/20/2023] [Indexed: 12/20/2023] Open
Abstract
Background Currently, there are no guidelines or consensus statements about the usage of inhaled mucoactive drugs in pediatric respiratory disease conditions from an Indian perspective. Objective To develop a practical consensus document to help pediatricians in clinical decision-making when choosing an appropriate mucoactive drug for the management of specific respiratory disease conditions. Methods A committee of nine experts with significant experience in pediatric respiratory disease conditions and a microbiological expert constituted the panel. An electronic search of the PubMed/MEDLINE, Cochrane Library, Scopus, and Embase databases was undertaken to identify relevant articles. Various combinations of keywords such as inhaled, nebulized, mucoactive, mucolytic, mucokinetic, expectorants, mucoregulators, mucociliary clearance, respiratory disorders, pediatric, cystic fibrosis (CF), non-CF bronchiectasis, acute wheezing, asthma, primary ciliary dyskinesia (PCD), critically ill, mechanical ventilation, tracheomalacia, tracheobronchomalacia, esophageal atresia (EA), tracheoesophageal fistula (TEF), acute bronchiolitis, sputum induction, guideline, and management were used. Twelve questions were drafted for discussion. A roundtable meeting of experts was conducted to arrive at a consensus. The level of evidence and class of recommendation were weighed and graded. Conclusions Inhaled mucoactive drugs (hypertonic saline, dry powder mannitol, and dornase alfa) can enhance mucociliary clearance in children with CF. Experts opined that hypertonic saline could be beneficial in non-CF bronchiectasis, acute bronchiolitis, and PCD. The current state of evidence is inadequate to support the use of inhaled mucoactive drugs in asthma, acute wheezing, tracheomalacia, tracheobronchomalacia, and EA with TEF.
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Affiliation(s)
- Meenu Singh
- Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), Rishikesh, India
| | - Sneha Varkki
- Department of Pediatrics, Christian Medical College, Vellore, India
| | - Ilin Kinimi
- Department of Pediatrics, Manipal Hospitals, Bengaluru, India
| | - Rashmi R. Das
- Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), Bhubaneswar, India
| | - Jagdish Prasad Goyal
- Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), Jodhpur, India
| | - Mushtaq Bhat
- Department of Pediatrics and Neonatology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar, India
| | - Rajeshwar Dayal
- Department of Pediatrics, Sarojini Naidu Medical College, Agra, India
| | - Pawan Kalyan
- Department of Pediatrics, Dr Pinnamaneni Siddhartha Institute of Medical Sciences and Research Foundation, Chinaoutapally, India
| | - Jitender Gairolla
- Department of Microbiology, All India Institute of Medical Sciences (AIIMS), Rishikesh, India
| | - Indu Khosla
- Dr Indu’s Newborn and Pediatric Center, Mumbai, India
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Dennett EJ, Stovold EM, Fortescue R. A survey and stakeholder group prioritised key systematic review questions in airways disease. DIALOGUES IN HEALTH 2022; 1:100028. [PMID: 38515910 PMCID: PMC10953928 DOI: 10.1016/j.dialog.2022.100028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 03/23/2024]
Abstract
Objective Priority setting is important for healthcare research. The Cochrane Airways Group wanted to prioritise topics for systematic reviews across all chronic respiratory diseases with limited resources and according to latest Cochrane policy.The objective was to prioritise 10 reviews of importance to the public (patients, carers, healthcare professionals and researchers) from a patient survey. Study design and setting We convened a stakeholder group of patients, carers, healthcare professionals and representatives from charities. We conducted an online survey to collect uncertainties about the treatment and management of respiratory disease from the public. Uncertainties were ranked by the stakeholder group, and scoping searches refined the uncertainties into systematic review questions. Results We received 147 survey responses. We removed duplicates and blank responses and asked the stakeholder group to rank 100 uncertainties. The first round of voting produced a list of 29 topics and the second round resulted in 12 uncertainties. These uncertainties were scoped with literature searches and teased out further into systematic review topics. We identified 3 Cochrane reviews to update, 8 new review topics, and 3 evidence gaps. Conclusion We successfully convened a stakeholder group and prioritised a list of uncertainties in the treatment and management of airways diseases that had been identified by patients and the public.
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Affiliation(s)
- Emma J. Dennett
- Population Health Research Institute, St George's, University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Elizabeth M. Stovold
- Population Health Research Institute, St George's, University of London, Cranmer Terrace, London SW17 0RE, UK
| | - Rebecca Fortescue
- Population Health Research Institute, St George's, University of London, Cranmer Terrace, London SW17 0RE, UK
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Kibuka M, Price A, Onakpoya I, Tierney S, Clarke M. Evaluating the effects of maternal positions in childbirth: An overview of Cochrane Systematic Reviews. Eur J Midwifery 2022; 5:57. [PMID: 35005482 PMCID: PMC8678923 DOI: 10.18332/ejm/142781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/20/2021] [Accepted: 10/01/2021] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION The purpose of this study is to conduct an overview of Cochrane systematic reviews (SRs) evaluating the effects of maternal positions in childbirth in order to compile existing evidence for relevant research questions that have been addressed by more than one review, to provide a succinct summary of the up-to-date evidence and to identify areas for future research. METHODS An electronic search was conducted in the Cochrane database. Two primary outcomes were the duration of labor and birth, and operative birth. The quality of included reviews was assessed using the AMSTAR criteria, and the quality of the evidence was rated using the GRADE criteria. RESULTS We included 3 Cochrane SRs. There was a significant mean difference (MD) found in the duration of the first stage by 1 hour and 22 minutes (MD= -1.21; 95% CI: -2.35 – -0.07, I2=94%) and reduction in caesarean section rates (RR=0.71; 95% CI: 0.54–0.94, I2=0%) in the upright birth position group compared with the horizontal. Also, there was a statistically significant difference in the duration (minutes) of the second stage of labor (MD= -6.16; 95% CI: -9.74 – -2.59, I2=91%) and a reduction in assisted vaginal birth rates (RR=0.75, 95% CI: 0.66–0.86, I2=29%) in the upright group compared with the horizontal without epidural analgesia. The quality of evidence within the reviews was very low to moderate. CONCLUSIONS There is currently a limited body of evidence to clearly assess the benefits and risks of assuming upright positions during childbirth. The overview highlights the need for high-quality research studies, involving better definition and comprehensive assessment of the effects of squatting during childbirth.
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Affiliation(s)
- Marion Kibuka
- Department for Continuing Education, University of Oxford, Oxford, United Kingdom
| | - Amy Price
- Stanford Anesthesia and Informatics Media Lab, School of Medicine, Stanford University, Palo Alto, United States.,Centre for Evidence Based Medicine, University of Oxford, Oxford, United Kingdom
| | - Igho Onakpoya
- Department for Continuing Education, University of Oxford, Oxford, United Kingdom
| | - Stephanie Tierney
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Mike Clarke
- All Ireland Hub for Trials Methodology Research, Centre for Public Health, Institute of Clinical Sciences, Queen's University Belfast, Royal Victoria Hospital, Belfast, Ireland
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Brooke-Hollidge A, Conway J, Lewis A. Gender differences in non-cystic fibrosis bronchiectasis severity and bacterial load: the potential role of hormones. Ther Adv Respir Dis 2021; 15:17534666211035311. [PMID: 34520299 PMCID: PMC8445533 DOI: 10.1177/17534666211035311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Non cystic-fibrosis bronchiectasis (NCFB) is a complex chronic respiratory disease, characterised by excessive sputum production and abnormal permanent dilation of bronchi. Mucus accumulation leads to recurrent bacterial infections and increased bacterial load, causing vicious cycles of structural damage and decreased lung function. Respiratory physiotherapy management of NCFB includes airway clearance techniques and use of nebulised, hypertonic saline. Despite advances in treatment, a consistent relationship has been observed between gender and disease occurrence, with a higher prevalence amongst females. Furthermore, NCFB presents most aggressively amongst post-menopausal females, a group likely exposed to higher levels of progesterone (P4) over a longer period of time. The effects of gender-specific hormones on bacterial load and physiotherapy management of people living with NCFB remain unknown. The aim of this narrative review was to discuss the potential influence of gender specific hormones on NCFB disease progression and influence on physiotherapy, medical management and future research. SCOPUS and PUBMED electronic databases were used to conduct searches for relevant studies using specific inclusion and exclusion criteria. Secondary inclusion of relevant literature was obtained from primary paper references. Previous literature suggests that P4 may impair Cilia Beat Frequency (CBF) in airway epithelium. Reduction in CBF may further reduce ability to expectorate amongst individuals with NCFB, increasing bacterial load and likelihood of exacerbations, negatively impacting on disease progression. Furthermore, coadministration of Estrogen has been suggested to offer opposing effects to that of P4 only. These findings question whether hormonal levels may be monitored, controlled and optimised within management and treatment of females with NCFB to improve airway clearance, reduce exacerbations and improve quality of life. Larger scale, long-term trials are required to further explore the effects of gender specific hormones on NCFB and the viability of treatment with hormone replacement therapy. The reviews of this paper are available via the supplemental material section.
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Affiliation(s)
| | | | - Adam Lewis
- College of Health, Medicine and Life Sciences, Brunel University London, Mary Seacole Building, Kingston Lane, Uxbridge, UB8 3PH, UK
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Barto TL, Maselli DJ, Daignault S, Stiglich J, Porter J, Kraemer C, Hansen G. Real-life experience with high-frequency chest wall oscillation vest therapy in adults with non-cystic fibrosis bronchiectasis. Ther Adv Respir Dis 2021; 14:1753466620932508. [PMID: 32538317 PMCID: PMC7297124 DOI: 10.1177/1753466620932508] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background: High frequency chest wall oscillation (HFCWO) has long been used for airway clearance for patients with cystic fibrosis. Only limited research has evaluated this therapy in adult patients with non-cystic fibrosis bronchiectasis (NCFB). Methods: Data from 2596 patients from a registry of adult bronchiectasis patients using HFCWO therapy was used to evaluate hospitalization patterns before and after initiation of HFCWO therapy, as well as antibiotic use and self-reported metrics of quality of life. Self-reported outcomes were also reviewed by cross-checking with sampled patient charts and found to be consistent. Results: The number of patients who had at least one respiratory-related hospitalization decreased from 49.1% (192/391) in the year before to 24.0% (94/391) in the year after starting HFCWO therapy (p-value < 0.001). At the same time, the number of patients who required three or more hospitalizations dropped from 14.3% (56/391) to 5.6% (22/391). Patients currently taking oral antibiotics for respiratory conditions decreased from 57.7% upon initiation of therapy to 29.9% within 1 year (p < 0.001). Patients who subjectively rated their “overall respiratory health” as good to excellent increased from 13.6% upon initiation of therapy to 60.5% in 1 year (p < 0.001) and those who rated their “ability to clear your lungs” as good to excellent increased from 13.9% to 76.6% (p < 0.001). Conclusion: NCFB patients showed improved self-reported outcomes associated with the initiation of HFCWO therapy as measured by number of hospitalizations, antibiotic use, and the subjective experience of airway clearance. The improvement was observed early on after initiation of therapy and sustained for at least 1 year. The reviews of this paper are available via the supplemental material section.
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Affiliation(s)
- Tara Lynn Barto
- Section of Pulmonary, Critical Care and Sleep Medicine, Baylor College of Medicine, 7200 Cambridge St., 8th Floor, Suite 8A, Houston, TX 77030, USA
| | - Diego Jose Maselli
- Division of Pulmonary Diseases & Critical Care Medicine, UT Health, San Antonio, TX, USA
| | | | | | | | - Carlye Kraemer
- North American Science Associates, Inc., Minneapolis, MN, USA
| | - Gary Hansen
- RespirTech, A Philips Company, St. Paul, MN, USA
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Mindaye ET, Tesfay GK, Erge MG. Pediatric bronchiectasis: An orphan disease ending in pneumonectomy: A case report. Int J Surg Case Rep 2020; 77:822-825. [PMID: 33395904 PMCID: PMC7724095 DOI: 10.1016/j.ijscr.2020.11.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 11/21/2022] Open
Abstract
Pediatric bronchiectasis causes early decline in lung function. Treatment of paediatric bronchiectasis should be multidisciplinary. Surgical resection should be the last option to treat bronchiectasis in children. Neglected paediatric bronchiectasis is fatal.
Introduction Bronchiectasis is chronic infectious and inflammatory disease that results in irreversible thickening and dilatation of bronchi, and significant lung function decline in children. Prompt early diagnosis and multidisciplinary intervention is crucial to control recurrent exacerbation and preserve lung function. Presentation of case We present a case of pediatric bronchiectasis in a 10-year-old female who presented with a complaint of intermittent wet cough of 5 weeks’ duration associated with low grade intermittent fever, shortness of breath, easy fatigability and loss of appetite. Left pneumonectomy was done through left posterolateral thoracotomy and she was discharged home in good condition. Discussion Recurrent lower tract air way infections are the most common causes of pediatric bronchiectasis followed by primary immune deficiency, primary ciliary dyskinesia, foreign body aspiration and airway structural abnormalities. It is crucial to equip health care professionals with adequate knowledge about the disease as most pediatric patients may not have productive cough like adults leading to misdiagnosis or significant delay in diagnosis. High Resolution Computerized Tomography (HRCT) is the gold standard modality to diagnose and stratify severity of bronchiectasis. Conclusion Neglected pediatric bronchiectasis is associated with significant morbidity and mortality. So, it should be considered as differential diagnosis in children with recurrent respiratory symptoms as timely and prompt diagnosis is crucial for early intervention. Surgical resection is the last option of treatment for patients with bronchiectasis mainly reserved for those with recurrent infection despite adequate medical therapy.
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Affiliation(s)
- Esubalew Taddese Mindaye
- Department of Surgery, Saint Paul's Hospital Millennium Medical College, Swaziland Street 1271, Addis Ababa, Ethiopia.
| | - Goytom Knfe Tesfay
- Department of Surgery, Saint Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia.
| | - Maru Gama Erge
- Department of Surgery, Saint Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia.
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Maglione PJ. Chronic Lung Disease in Primary Antibody Deficiency: Diagnosis and Management. Immunol Allergy Clin North Am 2020; 40:437-459. [PMID: 32654691 DOI: 10.1016/j.iac.2020.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Chronic lung disease is a complication of primary antibody deficiency (PAD) associated with significant morbidity and mortality. Manifestations of lung disease in PAD are numerous. Thoughtful application of diagnostic approaches is imperative to accurately identify the form of disease. Much of the treatment used is adapted from immunocompetent populations. Recent genomic and translational medicine advances have led to specific treatments. As chronic lung disease has continued to affect patients with PAD, we hope that continued advancements in our understanding of pulmonary pathology will ultimately lead to effective methods that alleviate impact on quality of life and survival.
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Affiliation(s)
- Paul J Maglione
- Pulmonary Center, Boston University School of Medicine, 72 East Concord Street, R304, Boston, MA 02118, USA.
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Benge CD, Barwise JA. Aerosolization of COVID-19 and Contamination Risks During Respiratory Treatments. Fed Pract 2020; 37:160-163. [PMID: 32322146 PMCID: PMC7173638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND Aerosolized medications are frequently administered across the health care continuum to acutely ill patients. During viral pandemics, the World Health Organization and the Centers for Disease Control and Prevention advise the application of airborne precautions when performing aerosol-generating medical procedures, such as aerosolized medications. OBSERVATIONS Appropriate personal protective equipment (PPE), including fit-tested particulate respirators should be worn when administering nebulized medications to patients. These PPEs have been in short supply in the US during early phases of the COVID-19 pandemic, which is increasing the risk faced by health care workers (HCWs) who are treating patients using aerosolized medications. Despite taking appropriate precautions, HCWs are becoming infected with COVID-19. This may be related to secondary exposure related to viral longevity in fugitive emissions and viability on fomites. CONCLUSIONS We have expanded on non-US public health recommendations to provide guidance to frontline HCWs to enhance collaboration between clinicians, who are often siloed in their clinical practices, and ultimately to protect the federal workforce, which cannot sustain a significant loss of frontline HCWs.
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Affiliation(s)
- Cassandra D Benge
- is a Clinical Pharmacy Specialist, and is a Staff Physician and Medical Director of the Surgical Intensive Care Unit, both at VA Tennessee Valley Healthcare System in Nashville. John Barwise is Associate Professor of Clinical Anesthesiology at Vanderbilt University Medical Center in Nashville
| | - John Alan Barwise
- is a Clinical Pharmacy Specialist, and is a Staff Physician and Medical Director of the Surgical Intensive Care Unit, both at VA Tennessee Valley Healthcare System in Nashville. John Barwise is Associate Professor of Clinical Anesthesiology at Vanderbilt University Medical Center in Nashville
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Myers LL, Nerminathan A, Fitzgerald DA, Chien J, Middleton A, Waugh MC, Paget SP. Transition to adult care for young people with cerebral palsy. Paediatr Respir Rev 2020; 33:16-23. [PMID: 31987717 DOI: 10.1016/j.prrv.2019.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/03/2019] [Indexed: 01/25/2023]
Abstract
Cerebral palsy (CP) is associated with a high burden of comorbid respiratory disease subsequent to multiple risk factors associated with increasing levels of disability. Correspondingly, respiratory disease is the leading cause of death in CP, including amongst young people who are transitioning or who have just transitioned between paediatric and adult healthcare services. Therefore, consideration of both preventive and therapeutic respiratory management is integral to transition in patients with CP, as summarised in this review.
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Affiliation(s)
- Lisa L Myers
- Kids Rehab, The Children's Hospital at Westmead, Sydney, NSW, Australia.
| | - Arany Nerminathan
- Department of General Paediatrics, The Children's Hospital at Westmead, Sydney, NSW, Australia
| | - Dominic A Fitzgerald
- Department of Respiratory Medicine, The Children's Hospital at Westmead, Sydney, NSW, Australia; Discipline of Child and Adolescent Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Jimmy Chien
- Department of Respiratory and Sleep Medicine, Westmead Hospital, Westmead, Sydney, NSW, Australia; Discipline of Medicine, Sydney Medical School, University of Sydney, NSW, Australia
| | - Anna Middleton
- Physiotherapy Department, The Children's Hospital at Westmead, Sydney, NSW, Australia
| | - Mary-Clare Waugh
- Kids Rehab, The Children's Hospital at Westmead, Sydney, NSW, Australia; Discipline of Child and Adolescent Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Simon Paul Paget
- Kids Rehab, The Children's Hospital at Westmead, Sydney, NSW, Australia; Discipline of Child and Adolescent Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
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Bradley JM, Anand R, O’Neill B, Ferguson K, Clarke M, Carroll M, Chalmers J, De Soyza A, Duckers J, Hill AT, Loebinger MR, Copeland F, Gardner E, Campbell C, Agus A, McGuire A, Boyle R, McKinney F, Dickson N, McAuley DF, Elborn S. A 2 × 2 factorial, randomised, open-label trial to determine the clinical and cost-effectiveness of hypertonic saline (HTS 6%) and carbocisteine for airway clearance versus usual care over 52 weeks in adults with bronchiectasis: a protocol for the CLEAR clinical trial. Trials 2019; 20:747. [PMID: 31856887 PMCID: PMC6921594 DOI: 10.1186/s13063-019-3766-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 09/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Current guidelines for the management of bronchiectasis (BE) highlight the lack of evidence to recommend mucoactive agents, such as hypertonic saline (HTS) and carbocisteine, to aid sputum removal as part of standard care. We hypothesise that mucoactive agents (HTS or carbocisteine, or a combination) are effective in reducing exacerbations over a 52-week period, compared to usual care. METHODS This is a 52-week, 2 × 2 factorial, randomized, open-label trial to determine the clinical effectiveness and cost effectiveness of HTS 6% and carbocisteine for airway clearance versus usual care - the Clinical and cost-effectiveness of hypertonic saline (HTS 6%) and carbocisteine for airway clearance versus usual care (CLEAR) trial. Patients will be randomised to (1) standard care and twice-daily nebulised HTS (6%), (2) standard care and carbocisteine (750 mg three times per day until visit 3, reducing to 750 mg twice per day), (3) standard care and combination of twice-daily nebulised HTS and carbocisteine, or (4) standard care. The primary outcome is the mean number of exacerbations over 52 weeks. Key inclusion criteria are as follows: adults with a diagnosis of BE on computed tomography, BE as the primary respiratory diagnosis, and two or more pulmonary exacerbations in the last year requiring antibiotics and production of daily sputum. DISCUSSION This trial's pragmatic research design avoids the significant costs associated with double-blind trials whilst optimising rigour in other areas of trial delivery. The CLEAR trial will provide evidence as to whether HTS, carbocisteine or both are effective and cost effective for patients with BE. TRIAL REGISTRATION EudraCT number: 2017-000664-14 (first entered in the database on 20 October 2017). ISRCTN.com, ISRCTN89040295. Registered on 6 July/2018. Funder: National Institute for Health Research, Health Technology Assessment Programme (15/100/01). SPONSOR Belfast Health and Social Care Trust. Ethics Reference Number: 17/NE/0339. Protocol version: v3.0 Final_14052018.
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Affiliation(s)
- Judy Martina Bradley
- Wellcome-Wolfson Institute For Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
| | - Rohan Anand
- Wellcome-Wolfson Institute For Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
| | - Brenda O’Neill
- Centre for Health and Rehabilitation Technologies (CHaRT), Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK
| | - Kathryn Ferguson
- Northern Ireland Clinical Research Network, Belfast Health and Social Care Trust, Belfast, UK
| | - Mike Clarke
- Northern Ireland Methodology Hub, Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
| | - Mary Carroll
- Southampton University Hospitals NHS Trust, Southampton, UK
| | | | - Anthony De Soyza
- NIHR Biomedical research centre (BRC) for Aging, Institute of Cellular Medicine, Newcastle University, Newcastle, UK
| | - Jamie Duckers
- Cardiff and Vale University Health Board, University Hospital Llandough, Penarth, UK
| | - Adam T. Hill
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Michael R. Loebinger
- Faculty of Medicine, National Heart and Lung Institute, Imperial College and Royal Brompton Hospital, London, UK
| | - Fiona Copeland
- PCD Family Support Group, Ciliopathy Alliance, London, UK
| | - Evie Gardner
- Northern Ireland Clinical Trials Unit, Belfast Health and Social Care Trust, Belfast, UK
| | - Christina Campbell
- Northern Ireland Clinical Trials Unit, Belfast Health and Social Care Trust, Belfast, UK
| | - Ashley Agus
- Northern Ireland Clinical Trials Unit, Belfast Health and Social Care Trust, Belfast, UK
| | - Alistair McGuire
- Department of Health Policy, London School of Economics and Political Science, London, UK
| | - Roisin Boyle
- Northern Ireland Clinical Trials Unit, Belfast Health and Social Care Trust, Belfast, UK
| | - Fionnuala McKinney
- Northern Ireland Clinical Trials Unit, Belfast Health and Social Care Trust, Belfast, UK
| | - Naomi Dickson
- Northern Ireland Clinical Trials Unit, Belfast Health and Social Care Trust, Belfast, UK
| | - Danny F. McAuley
- Wellcome-Wolfson Institute For Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
| | - Stuart Elborn
- Wellcome-Wolfson Institute For Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
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Powner J, Nesmith A, Kirkpatrick DP, Nichols JK, Bermingham B, Solomon GM. Employment of an algorithm of care including chest physiotherapy results in reduced hospitalizations and stability of lung function in bronchiectasis. BMC Pulm Med 2019; 19:82. [PMID: 31023284 PMCID: PMC6485142 DOI: 10.1186/s12890-019-0844-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 04/02/2019] [Indexed: 12/14/2022] Open
Abstract
Background There is a paucity of data on long term clinical effects of high frequency chest wall oscillation (HFCWO) in the Bronchiectasis population. Other therapies such as nebulized mucolytics and long term antibiotics have proven benefit on quality of life and exacerbation rate. In this study a treatment algorithm that included HFCWO as a component was initiated to see what the long term effects of the proposed algorithm were on lung function, antibiotic use, and exacerbation rates. Methods This was an observational comparative retrospective cohort study from database of patients with Bronchiectasis. Patients with > 2 exacerbations and significant symptom burden were enrolled to receive a treatment algorithm. The algorithm included: nebulized bronchodilators, mucolytics (hypertonic saline (3–7%) or n-acetylcysteine) inhaled daily or twice daily, thrice weekly macrolide therapy when appropriate, and high frequency chest wall oscillation (HFCWO) therapy (daily to twice daily per issued protocol) Outcomes from the cohort were analyzed for the subsequent twelve months after initiation to observe longitudinal lung function and clinical outcomes. Chart review was then done to obtain data the year prior to the start of the algorithm in this same cohort of patients. Results Sixty-five patients received the Smart Vest® HFCWO system and were enrolled into the algorithm for treatment during the study period. Of the sixty-five patients, forty-three were eligible due to adequate 1-year baseline and follow up data at the time of the study initiation. The mean FEV1 remained stable at 1-year post enrollment (1.85 ± 0.60 L pre vs 1.89 ± 0.60 L post, p = NS) and the number of exacerbations requiring hospitalization was reduced (1.3 ± 1.0 pre vs. 0.46 ± 0.81 hospitalizations, post initiation, p < 0.0001). Antibiotic use overall was also reduced (2.5 ± 0.86 courses/year pre vs 2.1 ± 0.92 courses per year post initiation, p < 0.0001). Conclusion Standardized care for Bronchiectasis involving an algorithm for Mucociliary clearance that centers on initiation of HFCWO may help to reduce lung function decline, need for oral antibiotics, and reduced hospitalization rate.
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Affiliation(s)
- Jordan Powner
- University of Alabama at Birmingham Department of Medicine, Birmingham, AL, USA
| | - Andrew Nesmith
- University of Alabama at Birmingham Department of Medicine, Birmingham, AL, USA
| | | | | | - Brent Bermingham
- University of Alabama at Birmingham Department of Medicine, Birmingham, AL, USA
| | - George M Solomon
- University of Alabama at Birmingham Department of Medicine, Birmingham, AL, USA. .,Gregory Fleming James Cystic Fibrosis Research Center, 1900 University Blvd THT 422, Birmingham, AL, 35294, USA.
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Pollock A, van Wijck F. Cochrane overviews: how can we optimize their impact on evidence-based rehabilitation? Eur J Phys Rehabil Med 2019; 55:395-410. [PMID: 30938138 DOI: 10.23736/s1973-9087.19.05780-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Overviews (i.e. reviews of multiple systematic reviews) comprise a relatively novel methodology to systematically synthesize research findings. Overviews aim for a beneficial impact on clinical practice, but their methods and pathways to impact have so far not been mapped. The aim of this paper was to inform recommendations for optimizing impact on rehabilitation practice and research by mapping methods and pathways to impact in Cochrane overviews relevant to rehabilitation. EVIDENCE ACQUISITION We systematically searched and identified published Cochrane overviews (to June 2018) relevant to rehabilitation. We extracted data and compared overviews on key characteristics, methods of evidence synthesis, statements about impact, and access metrics. We explored one overview in detail regarding beneficiaries, activities and outputs, mapped potential pathways to impact, and, using an iterative process, refined this into a generic map. Through exploration of all synthesized data, we propose further recommendations for planning, conducting and reporting of future overviews in order to optimize impact on rehabilitation. EVIDENCE SYNTHESIS We identified seven Cochrane overviews relevant to rehabilitation. Their focus and methods varied, but they were broadly related to rehabilitation interventions for populations of people with diverse long-term conditions. Overviews also varied regarding their intended impact; only 4 overviews identified specific beneficiaries. All overviews included multiple tables and figures, but only one synthesized key findings into a single figure. For five overviews, the Altmetric Attention Score (a weighted count of attention that an output receives based on a range of online sources) was in the top 5% of all research outputs scored by Altmetric. The overview within our worked example had four key impact goals, each with different beneficiaries and required actions; this example led to a generic map of potential pathways to impact for other overviews. CONCLUSIONS Cochrane overviews have the potential to play a key role in knowledge translation and therefore to be useful in supporting evidence-based rehabilitation practice. However, current overviews relating to rehabilitation differ in methods, approaches and intended impact, and sometimes fall short of promoting easy access to key information for beneficiaries. Future Cochrane overviews should address topics of importance to key beneficiaries and clearly outline potential pathways to impact in order to have a potential beneficial impact on evidence-based rehabilitation and to improve rehabilitation outcomes.
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Affiliation(s)
- Alex Pollock
- Nursing Midwifery and Allied Health Professions (NMAHP) Research Unit, Glasgow Caledonian University, Glasgow, UK -
| | - Frederike van Wijck
- School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, UK
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Wilson LM, Morrison L, Robinson KA. Airway clearance techniques for cystic fibrosis: an overview of Cochrane systematic reviews. Cochrane Database Syst Rev 2019; 1:CD011231. [PMID: 30676656 PMCID: PMC6353051 DOI: 10.1002/14651858.cd011231.pub2] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Cystic fibrosis is a life-limiting genetic condition in which thick mucus builds up in the lungs, leading to infections, inflammation, and eventually, deterioration in lung function. To clear their lungs of mucus, people with cystic fibrosis perform airway clearance techniques daily. There are various airway clearance techniques, which differ in terms of the need for assistance or equipment, and cost. OBJECTIVES To summarise the evidence from Cochrane Reviews on the effectiveness and safety of various airway clearance techniques in people with cystic fibrosis. METHODS For this overview, we included Cochrane Reviews of randomised or quasi-randomised controlled trials (including cross-over trials) that evaluated an airway clearance technique (conventional chest physiotherapy, positive expiratory pressure (PEP) therapy, high-pressure PEP therapy, active cycle of breathing techniques, autogenic drainage, airway oscillating devices, external high frequency chest compression devices and exercise) in people with cystic fibrosis.We searched the Cochrane Database of Systematic Reviews on 29 November 2018.Two review authors independently evaluated reviews for eligibility. One review author extracted data from included reviews and a second author checked the data for accuracy. Two review authors independently graded the quality of reviews using the ROBIS tool. We used the GRADE approach for assessing the overall strength of the evidence for each primary outcome (forced expiratory volume in one second (FEV1), individual preference and quality of life). MAIN RESULTS We included six Cochrane Reviews, one of which compared any type of chest physiotherapy with no chest physiotherapy or coughing alone and the remaining five reviews included head-to-head comparisons of different airway clearance techniques. All the reviews were considered to have a low risk of bias. However, the individual trials included in the reviews often did not report sufficient information to adequately assess risk of bias. Many trials did not sufficiently report on outcome measures and had a high risk of reporting bias.We are unable to draw definitive conclusions for comparisons of airway clearance techniques in terms of FEV1, except for reporting no difference between PEP therapy and oscillating devices after six months of treatment, mean difference -1.43% predicted (95% confidence interval -5.72 to 2.87); the quality of the body of evidence was graded as moderate. The quality of the body of evidence comparing different airway clearance techniques for other outcomes was either low or very low. AUTHORS' CONCLUSIONS There is little evidence to support the use of one airway clearance technique over another. People with cystic fibrosis should choose the airway clearance technique that best meets their needs, after considering comfort, convenience, flexibility, practicality, cost, or some other factor. More long-term, high-quality randomised controlled trials comparing airway clearance techniques among people with cystic fibrosis are needed.
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Affiliation(s)
- Lisa M Wilson
- Johns Hopkins UniversityEvidence‐based Practice CenterHampton House, 6th Floor624 North BroadwayBaltimoreMDUSA21205‐1901
| | - Lisa Morrison
- Queen Elizabeth University Hospital (The Southern General Hospital)West of Scotland Adult CF Unit1345 Govan RoadGlasgowUKG51 4TF
| | - Karen A Robinson
- Johns Hopkins UniversityDepartment of Medicine1830 E. Monument St., Suite 8068BaltimoreMDUSA21287
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Scaglione F, Petrini O. Mucoactive Agents in the Therapy of Upper Respiratory Airways Infections: Fair to Describe Them Just as Mucoactive? CLINICAL MEDICINE INSIGHTS. EAR, NOSE AND THROAT 2019; 12:1179550618821930. [PMID: 30670922 PMCID: PMC6328955 DOI: 10.1177/1179550618821930] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 11/21/2018] [Indexed: 12/16/2022]
Abstract
Background Upper and lower respiratory tract infections are common conditions for which medical advice is sought, and their management relies on the use of prescription and over-the-counter (OTC) medicines. Ambroxol, bromhexine, carbocysteine, erdosteine, N-acetyl cysteine (NAC), and sobrerol are mucoactive agents for which clinical trials have been conducted, have been awarded well-established status by regulatory authorities, and are available as OTC or prescription products. Objective To briefly review the evidence-based efficacy and safety of these substances in the therapy of upper respiratory airways infections. Methods We conducted searches in MEDLINE and other databases for clinical trials and reviews done on the efficacy and safety of ambroxol, bromhexine, carbocysteine, erdosteine, NAC, and sobrerol. Results Clinical trials have shown that these mucolytics have an important place in the relief of cough symptoms by easing the elimination of mucus. All drugs have shown comparable efficacy in the symptomatic treatment of productive cough, with some shared characteristics and some specific features. Conclusions and relevance All mucolytics reviewed have a good safety profile, although some precautions should be taken when using ambroxol and bromhexine, and the use of NAC and carbocysteine should be monitored in special patient groups. Overall, however, the available evidence from randomised, controlled, and observational trials, as well as pragmatic, real-life experience, suggests that these products are useful in the therapy of upper respiratory airways infections, including bronchitis, sinusitis, and rhinosinusitis.
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Affiliation(s)
- Francesco Scaglione
- Department of Oncology and Onco-Hematology, University of Milan, Milan, Italy
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Su VYF, Perng DW, Chou TC, Chou YC, Chang YL, Hsu CC, Chou CL, Lee HC, Chen TJ, Hu PW. Mucolytic Agents and Statins Use is Associated with a Lower Risk of Acute Exacerbations in Patients with Bronchiectasis-Chronic Obstructive Pulmonary Disease Overlap. J Clin Med 2018; 7:E517. [PMID: 30518165 PMCID: PMC6306823 DOI: 10.3390/jcm7120517] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 11/23/2018] [Accepted: 11/26/2018] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Bronchiectasis-chronic obstructive pulmonary disease (COPD) overlap (BCO) is a neglected area of trials, and it is not covered by guidelines for clinical practice. METHODS Using the National Health Insurance Research Database of Taiwan, COPD patients with or without bronchiectasis from 2000 to 2009 were enrolled as the BCO and COPD alone cohorts, respectively. Patients followed for <28 days, diagnosed with COPD who were not prescribed with COPD medications, and those diagnosed with bronchiectasis who did not receive a chest X-ray or computed tomography were excluded. The primary endpoints were acute exacerbations and mortality. RESULTS There were 831 patients in the BCO cohort and 3321 patients in the COPD alone cohort, covering 3763.08 and 17,348.95 person-years, respectively, from 2000 to 2011. The BCO cohort had higher risk for exacerbations (adjusted hazard ratio (HR) 2.26, 95% confidence interval (CI) 1.94⁻2.63) and mortality (HR 1.46, 95% CI 1.24⁻1.73) than the COPD alone cohort. In the patients overall, the use of statins, macrolides, and mucolytic agents was associated with significantly lower risks of acute exacerbations (statins, HR 0.37, 95% CI 0.29⁻0.46; macrolides, HR 0.65, 95% CI 0.45⁻0.93; mucolytic agents, HR 0.68, 95% CI 0.59⁻0.78). Statins were associated with a significantly lower risk of mortality (HR 0.32, 95% CI 0.25⁻0.41). In the BCO group, statins and mucolytic agents use was associated with significantly lower risks of acute exacerbations (statins, HR 0.44, 95% CI 0.29⁻0.65; mucolytic agents, HR 0.58, 95% CI 0.45⁻0.75). CONCLUSION Statins and mucolytic agents use may lower risk of acute exacerbation in patients with BCO.
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Affiliation(s)
- Vincent Yi-Fong Su
- Department of Internal Medicine, Taipei City Hospital, Taipei 11146, Taiwan.
- Department of Pharmacy, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
| | - Diahn-Warng Perng
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
- Department of Family Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
| | - Ting-Chun Chou
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan.
| | - Yueh-Ching Chou
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan.
- Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei 11221, Taiwan.
| | - Yuh-Lih Chang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan.
| | - Chia-Chen Hsu
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan.
| | - Chia-Lin Chou
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan.
| | - Hsin-Chen Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Department and Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan.
| | - Tzeng-Ji Chen
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- School of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan.
| | - Po-Wei Hu
- Department of Family Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
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Medley N, Vogel JP, Care A, Alfirevic Z. Interventions during pregnancy to prevent preterm birth: an overview of Cochrane systematic reviews. Cochrane Database Syst Rev 2018; 11:CD012505. [PMID: 30480756 PMCID: PMC6516886 DOI: 10.1002/14651858.cd012505.pub2] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Preterm birth (PTB) is a major factor contributing to global rates of neonatal death and to longer-term health problems for surviving infants. Both the World Health Organization and the United Nations consider prevention of PTB as central to improving health care for pregnant women and newborn babies. Current preventative clinical strategies show varied efficacy in different populations of pregnant women, frustrating women and health providers alike, while researchers call for better understanding of the underlying mechanisms that lead to PTB. OBJECTIVES We aimed to summarise all evidence for interventions relevant to the prevention of PTB as reported in Cochrane systematic reviews (SRs). We intended to highlight promising interventions and to identify SRs in need of an update. METHODS We searched the Cochrane Database of Systematic Reviews (2 November 2017) with key words to capture any Cochrane SR that prespecified or reported a PTB outcome. Inclusion criteria focused on pregnant women without signs of preterm labour or ruptured amniotic membranes. We included reviews of interventions for pregnant women irrespective of their risk status. We followed standard Cochrane methods.We applied GRADE criteria to evaluate the quality of SR evidence. We assigned graphic icons to classify the effectiveness of interventions as: clear evidence of benefit; clear evidence of harm; clear evidence of no effect or equivalence; possible benefit; possible harm; or unknown benefit or harm. We defined clear evidence of benefit and clear evidence of harm to be GRADE moderate- or high-quality evidence with a confidence interval (CI) that does not cross the line of no effect. Clear evidence of no effect or equivalence is GRADE moderate- or high-quality evidence with a narrow CI crossing the line of no effect. Possible benefit and possible harm refer to GRADE low-quality evidence with a clear effect (CI does not cross the line of no effect) or GRADE moderate- or high-quality evidence with a wide CI. Unknown harm or benefit refers to GRADE low- or very low-quality evidence with a wide CI. MAIN RESULTS We included 83 SRs; 70 had outcome data. Below we highlight key results from a subset of 36 SRs of interventions intended to prevent PTB. OUTCOME preterm birthClear evidence of benefitFour SRs reported clear evidence of benefit to prevent specific populations of pregnant women from giving birth early, including midwife-led continuity models of care versus other models of care for all women; screening for lower genital tract infections for pregnant women less than 37 weeks' gestation and without signs of labour, bleeding or infection; and zinc supplementation for pregnant women without systemic illness. Cervical cerclage showed clear benefit for women with singleton pregnancy and high risk of PTB only.Clear evidence of harmNo included SR reported clear evidence of harm.No effect or equivalenceFor pregnant women at high risk of PTB, bedrest for women with singleton pregnancy and antibiotic prophylaxis during the second and third trimester were of no effect or equivalent to a comparator.Possible benefitFour SRs found possible benefit in: group antenatal care for all pregnant women; antibiotics for pregnant women with asymptomatic bacteriuria; pharmacological interventions for smoking cessation for pregnant women who smoke; and vitamin D supplements alone for women without pre-existing conditions such as diabetes.Possible harmOne SR reported possible harm (increased risk of PTB) with intramuscular progesterone, but this finding is only relevant to women with multiple pregnancy and high risk of PTB. Another review found possible harm with vitamin D, calcium and other minerals for pregnant women without pre-existing conditions. OUTCOME perinatal deathClear evidence of benefitTwo SRs reported clear evidence of benefit to reduce pregnant women's risk of perinatal death: midwife-led continuity models of care for all pregnant women; and fetal and umbilical Doppler for high-risk pregnant women.Clear evidence of harmNo included SR reported clear evidence of harm.No effect or equivalenceFor pregnant women at high risk of PTB, antibiotic prophylaxis during the second and third trimester was of no effect or equivalent to a comparator.Possible benefitOne SR reported possible benefit with cervical cerclage for women with singleton pregnancy and high risk of PTB.Possible harmOne SR reported possible harm associated with a reduced schedule of antenatal visits for pregnant women at low risk of pregnancy complications; importantly, these women already received antenatal care in settings with limited resources. OUTCOMES preterm birth and perinatal deathUnknown benefit or harmFor pregnant women at high risk of PTB for any reason including multiple pregnancy, home uterine monitoring was of unknown benefit or harm. For pregnant women at high risk due to multiple pregnancy: bedrest, prophylactic oral betamimetics, vaginal progesterone and cervical cerclage were all of unknown benefit or harm. AUTHORS' CONCLUSIONS Implications for practiceThe overview serves as a map and guide to all current evidence relevant to PTB prevention published in the Cochrane Library. Of 70 SRs with outcome data, we identified 36 reviews of interventions with the aim of preventing PTB. Just four of these SRs had evidence of clear benefit to women, with an additional four SRs reporting possible benefit. No SR reported clear harm, which is an important finding for women and health providers alike.The overview summarises no evidence for the clinically important interventions of cervical pessary, cervical length assessment and vaginal progesterone because these Cochrane Reviews were not current. These are active areas for PTB research.The graphic icons we assigned to SR effect estimates do not constitute clinical guidance or an endorsement of specific interventions for pregnant women. It remains critical for pregnant women and their healthcare providers to carefully consider whether specific strategies to prevent PTB will be of benefit for individual women, or for specific populations of women.Implications for researchFormal consensus work is needed to establish standard language for overviews of reviews and to define the limits of their interpretation.Clinicians, researchers and funders must address the lack of evidence for interventions relevant to women at high risk of PTB due to multiple pregnancy.
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Affiliation(s)
- Nancy Medley
- The University of LiverpoolCochrane Pregnancy and Childbirth Group, Department of Women's and Children's HealthFirst Floor, Liverpool Women's NHS Foundation TrustCrown StreetLiverpoolUKL8 7SS
| | - Joshua P Vogel
- Burnet InstituteMaternal and Child Health85 Commercial RoadMelbourneAustralia
| | - Angharad Care
- The University of LiverpoolDepartment of Women's and Children's HealthFirst Floor, Liverpool Women's NHS Foundation TrustCrown StreetLiverpoolUKL8 7SS
| | - Zarko Alfirevic
- The University of LiverpoolDepartment of Women's and Children's HealthFirst Floor, Liverpool Women's NHS Foundation TrustCrown StreetLiverpoolUKL8 7SS
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Bartley J, Garrett J, Camargo CA, Scragg R, Vandal A, Sisk R, Milne D, Tai R, Jeon G, Cursons R, Wong C. Vitamin D 3 supplementation in adults with bronchiectasis: A pilot study. Chron Respir Dis 2018; 15:384-392. [PMID: 29490469 PMCID: PMC6234573 DOI: 10.1177/1479972318761646] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 01/24/2018] [Indexed: 11/15/2022] Open
Abstract
Vitamin D supplementation prevents acute respiratory infections and, through modulating innate and adaptive immunity, could have a potential role in bronchiectasis management. The primary aims of this pilot study were to assess serum 25-hydroxyvitamin D (25(OH)D) levels in New Zealand adults with bronchiectasis, and their 25(OH)D levels after vitamin D3 supplementation. Adults with bronchiectasis received an initial 2.5 mg vitamin D3 oral loading dose and 0.625 mg vitamin D3 weekly for 24 weeks. The primary outcome was serum 25(OH)D levels before and after vitamin D3 supplementation. Secondary outcomes (time to first infective exacerbation, exacerbation frequency, spirometry, health-related quality of life measures, sputum bacteriology and cell counts and chronic rhinosinusitis) were also assessed. This study is registered with the Australian New Zealand Clinical Trials Registry (ACTRN 12612001222831). The initial, average 25(OH)D level was 71 nmol/L (95% confidence interval (CI): [58, 84]), rising to 218 nmol/L (95% CI: [199, 237]) at 12 weeks and 205 nmol/L (95% CI: [186, 224]) at 24 weeks. The initial serum cathelicidin level was 25 nmol/L (95% CI: [17, 33]), rising to 102 nmol/L (95% CI: [48, 156]) at 12 weeks and 151 nmol/L (95% CI: [97, 205]) at 24 weeks. Over the 24-week study period, we observed statistically significant changes of 1.11 (95% CI: [0.08, 2.14]) in the Leicester Cough Questionnaire and -1.97 (95% CI: [-3.71, -0.23]) in the Dartmouth COOP charts score. No significant adverse effects were recorded. Many New Zealand adults with bronchiectasis have adequate 25(OH)D levels. Weekly vitamin D3 supplementation significantly improved 25(OH)D levels.
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Affiliation(s)
- Jim Bartley
- Department of Surgery, The University of Auckland, Auckland, New Zealand
| | - Jeff Garrett
- Department of Respiratory Medicine, Middlemore Hospital, Auckland, New Zealand
| | - Carlos A Camargo
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Robert Scragg
- School of Population Health, The University of Auckland, Auckland, New Zealand
| | - Alain Vandal
- Department of Biostatistics and Epidemiology, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
- Ko Awatea, Counties Manukau District Health Board, Auckland, New Zealand
| | - Rose Sisk
- Department of Biostatistics and Epidemiology, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - David Milne
- Department of Radiology, Auckland City Hospital, Auckland District Health Board, Auckland, New Zealand
| | - Ray Tai
- Department of Radiology, Auckland City Hospital, Auckland District Health Board, Auckland, New Zealand
| | - Gene Jeon
- Middlemore Clinical Trials Unit, Middlemore Hospital, Auckland, New Zealand
| | - Ray Cursons
- Faculty of Science and Engineering, University of Waikato, Hamilton, New Zealand
| | - Conroy Wong
- Department of Respiratory Medicine, Middlemore Hospital, Auckland, New Zealand
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Rowbotham NJ, Smith S, Prayle AP, Robinson KA, Smyth AR. Gaps in the evidence for treatment decisions in cystic fibrosis: a systematic review. Thorax 2018; 74:229-236. [PMID: 30301819 DOI: 10.1136/thoraxjnl-2017-210858] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 08/09/2018] [Accepted: 08/27/2018] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Cystic fibrosis (CF) is a multisystem disorder. Treatment is complex and evidence for treatment decisions may be absent. Characterising gaps in the research evidence will highlight treatment uncertainties and help prioritise research questions. We systematically identified the evidence gaps for treatment decisions in CF. METHODS We searched for systematic reviews and guidelines on treatment interventions in CF. Two researchers identified eligible reviews with arbitration from a third. Using a structured framework, we extracted and characterised evidence gaps. RESULTS There were 73 reviews and 21 guidelines that met our inclusion criteria. From these, we identified 148 evidence gaps across a range of treatment areas. We found 111 evidence gaps through systematic reviews and a further 37 from guidelines. The reason for an evidence gap could only be reliably characterised for systematic reviews. In most cases, there was more than one explanation-most commonly few or no trials (97/111 evidence gaps). Other important factors leading to evidence gaps were small sample size (49/111), inadequate duration of follow-up (38/111) or intervention (37/111) and factors relating to outcomes (35/111). Evidence gaps from both systematic reviews and guidelines fell into the following categories: Respiratory (91); Gastrointestinal (20); PhysiotherapyandExercise (16); Musculoskeletal (6); Endocrine (4); Basic defect of CF (8); Psychosocial (2); Ears, Nose and Throat (1). CONCLUSIONS We have compiled an up-to-date list of treatment uncertainties in CF and the reasons for these uncertainties. These can be used as a resource to aid researchers and funders when planning future trials. PROSPERO REGISTRATION NUMBER Pre-results; CRD42015030111.
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Affiliation(s)
- Nicola Jane Rowbotham
- Evidence Based Child Health Group, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, UK
| | - Sherie Smith
- Evidence Based Child Health Group, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, UK
| | - Andrew P Prayle
- Evidence Based Child Health Group, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, UK
| | - Karen A Robinson
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Alan Robert Smyth
- Evidence Based Child Health Group, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, UK
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Spargo M, Ryan C, Downey D, Hughes C. Development of a core outcome set for trials investigating the long-term management of bronchiectasis. Chron Respir Dis 2018; 16:1479972318804167. [PMID: 30278785 PMCID: PMC6301837 DOI: 10.1177/1479972318804167] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Heterogeneity in outcomes measured in trials limits accurate comparison of bronchiectasis studies. A core outcome set (COS) is an agreed, standardized set of outcomes that should be measured in trials for specific clinical areas. A COS for bronchiectasis could encourage consistency in future studies. An overview of systematic reviews and qualitative study on outcome selection in bronchiectasis informed an initial list of outcomes. A Delphi panel (n = 86) rated the importance of each outcome from 1 to 9 in 3 sequential questionnaires, as a means to achieve consensus: 1–3 = ‘of limited importance’; 4–6 = ‘important, but not critical’; and 7–9 = ‘critical’. Outcomes rated ‘critical’ by ≥70% of the panel were added to the COS. Eighty-two participants responded to the first questionnaire. Attrition between each questionnaire was 5%. After 3 rounds of questioning, 18 outcomes exceeded the threshold for consensus and were included in the COS. This study has achieved consensus on 18 outcomes that should be measured in trials of interventions for bronchiectasis. Selection of the highest ranked outcomes may represent a pragmatic means for comparison. Further research is required to condense the number of outcomes selected and to determine its relevance to interventions.
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Affiliation(s)
- Maureen Spargo
- 1 School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland
| | - Cristín Ryan
- 2 The School of Pharmacy & Pharmaceutical Sciences, Panoz Institute, Trinity College Dublin, Dublin, Ireland
| | - Damian Downey
- 3 Centre for Experimental Medicine, Queen's University Belfast, Belfast, Northern Ireland.,4 Regional Respiratory Centre, Belfast City Hospital, Belfast, Northern Ireland
| | - Carmel Hughes
- 1 School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland
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Kaehne A, Milan SJ, Felix LM, Sheridan E, Marsden PA, Spencer S. Head-to-head trials of antibiotics for bronchiectasis. Cochrane Database Syst Rev 2018; 9:CD012590. [PMID: 30184243 PMCID: PMC6513042 DOI: 10.1002/14651858.cd012590.pub2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND The diagnosis of bronchiectasis is defined by abnormal dilation of the airways related to a pathological mechanism of progressive airway destruction that is due to a 'vicious cycle' of recurrent bacterial infection, inflammatory mediator release, airway damage, and subsequent further infection. Antibiotics are the main treatment option for reducing bacterial burden in people with exacerbations of bronchiectasis and for longer-term eradication, but their use is tempered against potential adverse effects and concerns regarding antibiotic resistance. The comparative effectiveness, cost-effectiveness, and safety of different antibiotics have been highlighted as important issues, but currently little evidence is available to help resolve uncertainty on these questions. OBJECTIVES To evaluate the comparative effects of different antibiotics in the treatment of adults and children with bronchiectasis. SEARCH METHODS We identified randomised controlled trials (RCTs) through searches of the Cochrane Airways Group Register of trials and online trials registries, run 30 April 2018. We augmented these with searches of the reference lists of published studies. SELECTION CRITERIA We included RCTs reported as full-text articles, those published as abstracts only, and unpublished data. We included adults and children (younger than 18 years) with a diagnosis of bronchiectasis by bronchography or high-resolution computed tomography who reported daily signs and symptoms, such as cough, sputum production, or haemoptysis, and those with recurrent episodes of chest infection; we included studies that compared one antibiotic versus another when they were administered by the same delivery method. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trial selection, data extraction, and risk of bias. We assessed overall quality of the evidence using GRADE criteria. We made efforts to collect missing data from trial authors. We have presented results with their 95% confidence intervals (CIs) as mean differences (MDs) or odds ratios (ORs). MAIN RESULTS Four randomised trials were eligible for inclusion in this systematic review - two studies with 83 adults comparing fluoroquinolones with β-lactams and two studies with 55 adults comparing aminoglycosides with polymyxins.None of the included studies reported information on exacerbations - one of our primary outcomes. Included studies reported no serious adverse events - another of our primary outcomes - and no deaths. We graded this evidence as low or very low quality. Included studies did not report quality of life. Comparison between fluoroquinolones and β-lactams (amoxicillin) showed fewer treatment failures in the fluoroquinolone group than in the amoxicillin group (OR 0.07, 95% CI 0.01 to 0.32; low-quality evidence) after 7 to 10 days of therapy. Researchers reported that Pseudomonas aeruginosa infection was eradicated in more participants treated with fluoroquinolones (Peto OR 20.09, 95% CI 2.83 to 142.59; low-quality evidence) but provided no evidence of differences in the numbers of participants showing improvement in sputum purulence (OR 2.35, 95% CI 0.96 to 5.72; very low-quality evidence). Study authors presented no evidence of benefit in relation to forced expiratory volume in one second (FEV₁). The two studies that compared polymyxins versus aminoglycosides described no clear differences between groups in the proportion of participants with P aeruginosa eradication (OR 1.40. 95% CI 0.36 to 5.35; very low-quality evidence) or improvement in sputum purulence (OR 0.16, 95% CI 0.01 to 3.85; very low-quality evidence). The evidence for changes in FEV₁ was inconclusive. Two of three trials reported adverse events but did not report the proportion of participants experiencing one or more adverse events, so we were unable to interpret the information. AUTHORS' CONCLUSIONS Limited low-quality evidence favours short-term oral fluoroquinolones over beta-lactam antibiotics for patients hospitalised with exacerbations. Very low-quality evidence suggests no benefit from inhaled aminoglycosides verus polymyxins. RCTs have presented no evidence comparing other modes of delivery for each of these comparisons, and no RCTs have included children. Overall, current evidence from a limited number of head-to-head trials in adults or children with bronchiectasis is insufficient to guide the selection of antibiotics for short-term or long-term therapy. More research on this topic is needed.
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Affiliation(s)
- Axel Kaehne
- Edge Hill UniversityEPRC, Faculty of Health and Social CareOrmskirkUK
| | | | - Lambert M Felix
- University of OxfordNuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS)OxfordUK
| | - Emer Sheridan
- Lancashire Teaching Hospitals NHS Foundation TrustPharmacyPrestonUK
| | - Paul A Marsden
- Lancashire Teaching Hospitals TrustDepartment of Respiratory MedicinePrestonUK
- Lancaster UniversityFaculty of Health and MedicineLancasterUK
| | - Sally Spencer
- Edge Hill UniversityPostgraduate Medical InstituteSt Helens RoadOrmskirkLancashireUKL39 4QP
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Vidaillac C, Yong VFL, Jaggi TK, Soh MM, Chotirmall SH. Gender differences in bronchiectasis: a real issue? Breathe (Sheff) 2018; 14:108-121. [PMID: 29875830 PMCID: PMC5980467 DOI: 10.1183/20734735.000218] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Gender differences in chronic respiratory disease, including cystic fibrosis and non-cystic fibrosis bronchiectasis are clinically apparent and of increasing importance. Differences in disease prevalence, severity and outcome are all described, however, the precise cause of the gender dichotomy and their associated underlying mechanisms have been poorly characterised. A lack of dedicated clinical and epidemiological research focused in this area has led to a paucity of data and therefore a lack of understanding of its key drivers. Diagnosis, disease pathogenesis and treatment response are all complex but important aspects of bronchiectasis with an evident gender bias. Broadening our understanding of the interplay between microbiology, host physiology and the environment in the context of chronic lung diseases, such as bronchiectasis, is critical to unravelling mechanisms driving the observed gender differences. In this review, epidemiological, biological and environmental evidence related to gender in bronchiectasis is summarised. This illustrates gender differences as a “real issue” with the objective of mapping out a future framework upon which a gender-tailored medical approach may be incorporated into the diagnosis, monitoring and treatment of bronchiectasis. CF and non-CF bronchiectasis are complex multifactorial chronic pulmonary diseases demonstrating gender differences in their prevalence, severity and infections, some of which are attributable to sex hormoneshttp://ow.ly/beDf30jseK4
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Affiliation(s)
- Celine Vidaillac
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Valerie F L Yong
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Tavleen K Jaggi
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Min-Min Soh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Sanjay H Chotirmall
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
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Hill AT, Barker AF, Bolser DC, Davenport P, Ireland B, Chang AB, Mazzone SB, McGarvey L. Treating Cough Due to Non-CF and CF Bronchiectasis With Nonpharmacological Airway Clearance: CHEST Expert Panel Report. Chest 2018; 153:986-993. [PMID: 29355548 PMCID: PMC6689075 DOI: 10.1016/j.chest.2018.01.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 12/24/2017] [Accepted: 01/02/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND In bronchiectasis due to cystic fibrosis (CF) and other causes, airway clearance is one of the mainstays of management. We conducted a systematic review on airway clearance by using non-pharmacological methods as recommended by international guidelines to develop recommendations or suggestions to update the 2006 CHEST guideline on cough. METHODS The systematic search for evidence examined the question, "Is there evidence of clinically important treatment effects for non-pharmacological therapies in cough treatment for patients with bronchiectasis?" Populations selected were all patients with bronchiectasis due to CF or non-CF bronchiectasis. The interventions explored were the non-pharmacological airway clearance therapies. The comparison populations included those receiving standard therapy and/or placebo. Clinically important outcomes that were explored were exacerbation rates, quality of life, hospitalizations, and mortality. RESULTS In both CF and non-CF bronchiectasis, there were systematic reviews and overviews of systematic reviews identified. Despite these findings, there were no large randomized controlled trials that explored the impact of airway clearance on exacerbation rates, quality of life, hospitalizations, or mortality. CONCLUSIONS Although the cough panel was not able to make recommendations, they have made consensus-based suggestions and provided direction for future studies to fill the gaps in knowledge.
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Affiliation(s)
- Adam T Hill
- Royal Infirmary and University of Edinburgh, Edinburgh, Scotland.
| | | | - Donald C Bolser
- College of Veterinary Medicine, University of Florida, Gainesville, FL
| | - Paul Davenport
- Department of Physiological Sciences, University of Florida, Gainesville, FL
| | | | - Anne B Chang
- Menzies School of Health Research, Darwin, NT, Australia; Department of Respiratory and Sleep Medicine, Lady Cilento Children's Hospital, Queensland University of Technology, Brisbane, QLD, Australia
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24
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Spencer S, Felix LM, Milan SJ, Normansell R, Goeminne PC, Chalmers JD, Donovan T. Oral versus inhaled antibiotics for bronchiectasis. Cochrane Database Syst Rev 2018; 3:CD012579. [PMID: 29587336 PMCID: PMC6494273 DOI: 10.1002/14651858.cd012579.pub2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Bronchiectasis is a chronic inflammatory disease characterised by a recurrent cycle of respiratory bacterial infections associated with cough, sputum production and impaired quality of life. Antibiotics are the main therapeutic option for managing bronchiectasis exacerbations. Evidence suggests that inhaled antibiotics may be associated with more effective eradication of infective organisms and a lower risk of developing antibiotic resistance when compared with orally administered antibiotics. However, it is currently unclear whether antibiotics are more effective when administered orally or by inhalation. OBJECTIVES To determine the comparative efficacy and safety of oral versus inhaled antibiotics in the treatment of adults and children with bronchiectasis. SEARCH METHODS We identified studies through searches of the Cochrane Airways Group's Specialised Register (CAGR), which is maintained by the Information Specialist for the group. The Register contains trial reports identified through systematic searches of bibliographic databases including the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, CINAHL, AMED, and PsycINFO, and handsearching of respiratory journals and meeting abstracts. We also searched ClinicalTrials.gov and the WHO trials portal. We searched all databases in March 2018 and imposed no restrictions on language of publication. SELECTION CRITERIA We planned to include studies which compared oral antibiotics with inhaled antibiotics. We would have considered short-term use (less than four weeks) for treating acute exacerbations separately from longer-term use as a prophylactic (4 weeks or more). We would have considered both intraclass and interclass comparisons. We planned to exclude studies if the participants received continuous or high-dose antibiotics immediately before the start of the trial, or if they have received a diagnosis of cystic fibrosis (CF), sarcoidosis, active allergic bronchopulmonary aspergillosis or active non-tuberculous Mycobacterial infection. DATA COLLECTION AND ANALYSIS Two review authors independently applied study inclusion criteria to the searches and we planned for two authors to independently extract data, assess risk of bias and assess overall quality of the evidence using GRADE criteria. We also planned to obtain missing data from the authors where possible and to report results with 95% confidence intervals (CIs). MAIN RESULTS We identified 313 unique records through database searches and a further 21 records from trial registers. We excluded 307 on the basis of title and abstract alone and a further 27 after examining full-text reports. No studies were identified for inclusion in the review. AUTHORS' CONCLUSIONS There is currently no evidence indicating whether orally administered antibiotics are more beneficial compared to inhaled antibiotics. The recent ERS bronchiectasis guidelines provide a practical approach to the use of long-term antibiotics. New research is needed comparing inhaled versus oral antibiotic therapies for bronchiectasis patients with a history of frequent exacerbations, to establish which approach is the most effective in terms of exacerbation prevention, quality of life, treatment burden, and antibiotic resistance.
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Affiliation(s)
- Sally Spencer
- Edge Hill UniversityPostgraduate Medical InstituteSt Helens RoadOrmskirkLancashireUKL39 4QP
| | - Lambert M Felix
- University of OxfordNuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS)OxfordUK
| | | | - Rebecca Normansell
- St George's, University of LondonCochrane Airways, Population Health Research InstituteLondonUKSW17 0RE
| | | | - James D Chalmers
- University of Dundee, Ninewells Hospital and Medical SchoolDundeeUK
| | - Tim Donovan
- University of CumbriaMedical and Sport SciencesLancasterUK
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25
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King PT. The Role of the Immune Response in the Pathogenesis of Bronchiectasis. BIOMED RESEARCH INTERNATIONAL 2018; 2018:6802637. [PMID: 29744361 PMCID: PMC5878907 DOI: 10.1155/2018/6802637] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/15/2018] [Indexed: 12/16/2022]
Abstract
Bronchiectasis is a prevalent respiratory condition characterised by permanent and abnormal dilation of the lung airways (bronchi). There are a large variety of causative factors that have been identified for bronchiectasis; all of these compromise the function of the immune response to fight infection. A triggering factor may lead to the establishment of chronic infection in the lower respiratory tract. The bacteria responsible for the lower respiratory tract infection are usually found as commensals in the upper respiratory tract microbiome. The consequent inflammatory response to infection is largely responsible for the pathology of this condition. Both innate and adaptive immune responses are activated. The literature has highlighted the central role of neutrophils in the pathogenesis of bronchiectasis. Proteases produced in the lung by the inflammatory response damage the airways and lead to the pathological dilation that is the pathognomonic feature of bronchiectasis. The small airways demonstrate infiltration with lymphoid follicles that may contribute to localised small airway obstruction. Despite aggressive treatment, most patients will have persistent disease. Manipulating the immune response in bronchiectasis may potentially have therapeutic potential.
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Affiliation(s)
- Paul T. King
- Monash Lung and Sleep and Monash University Department of Medicine, Monash Medical Centre, 246 Clayton Rd, Clayton, Melbourne, VIC 3168, Australia
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26
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Kelly C, Chalmers JD, Crossingham I, Relph N, Felix LM, Evans DJ, Milan SJ, Spencer S. Macrolide antibiotics for bronchiectasis. Cochrane Database Syst Rev 2018; 3:CD012406. [PMID: 29543980 PMCID: PMC6494352 DOI: 10.1002/14651858.cd012406.pub2] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Bronchiectasis is a chronic respiratory disease characterised by abnormal and irreversible dilatation and distortion of the smaller airways. Bacterial colonisation of the damaged airways leads to chronic cough and sputum production, often with breathlessness and further structural damage to the airways. Long-term macrolide antibiotic therapy may suppress bacterial infection and reduce inflammation, leading to fewer exacerbations, fewer symptoms, improved lung function, and improved quality of life. Further evidence is required on the efficacy of macrolides in terms of specific bacterial eradication and the extent of antibiotic resistance. OBJECTIVES To determine the impact of macrolide antibiotics in the treatment of adults and children with bronchiectasis. SEARCH METHODS We identified trials from the Cochrane Airways Trials Register, which contains studies identified through multiple electronic searches and handsearches of other sources. We also searched trial registries and reference lists of primary studies. We conducted all searches on 18 January 2018. SELECTION CRITERIA We included randomised controlled trials (RCTs) of at least four weeks' duration that compared macrolide antibiotics with placebo or no intervention for the long-term management of stable bronchiectasis in adults or children with a diagnosis of bronchiectasis by bronchography, plain film chest radiograph, or high-resolution computed tomography. We excluded studies in which participants had received continuous or high-dose antibiotics immediately before enrolment or before a diagnosis of cystic fibrosis, sarcoidosis, or allergic bronchopulmonary aspergillosis. Our primary outcomes were exacerbation, hospitalisation, and serious adverse events. DATA COLLECTION AND ANALYSIS Two review authors independently screened the titles and abstracts of 103 records. We independently screened the full text of 40 study reports and included 15 trials from 30 reports. Two review authors independently extracted outcome data and assessed risk of bias for each study. We analysed dichotomous data as odds ratios (ORs) and continuous data as mean differences (MDs) or standardised mean differences (SMDs). We used standard methodological procedures as expected by Cochrane. MAIN RESULTS We included 14 parallel-group RCTs and one cross-over RCT with interventions lasting from 8 weeks to 24 months. Of 11 adult studies with 690 participants, six used azithromycin, four roxithromycin, and one erythromycin. Four studies with 190 children used either azithromycin, clarithromycin, erythromycin, or roxithromycin.We included nine adult studies in our comparison between macrolides and placebo and two in our comparison with no intervention. We included one study with children in our comparison between macrolides and placebo and one in our comparison with no intervention.In adults, macrolides reduced exacerbation frequency to a greater extent than placebo (OR 0.34, 95% confidence interval (CI) 0.22 to 0.54; 341 participants; three studies; I2 = 65%; moderate-quality evidence). This translates to a number needed to treat for an additional beneficial outcome of 4 (95% CI 3 to 8). Data show no differences in exacerbation frequency between use of macrolides (OR 0.31, 95% CI 0.08 to 1.15; 43 participants; one study; moderate-quality evidence) and no intervention. Macrolides were also associated with a significantly better quality of life compared with placebo (MD -8.90, 95% CI -13.13 to -4.67; 68 participants; one study; moderate-quality evidence). We found no evidence of a reduction in hospitalisations (OR 0.56, 95% CI 0.19 to 1.62; 151 participants; two studies; I2 = 0%; low-quality evidence), in the number of participants with serious adverse events, including pneumonia, respiratory and non-respiratory infections, haemoptysis, and gastroenteritis (OR 0.49, 95% CI 0.20 to 1.23; 326 participants; three studies; I2 = 0%; low-quality evidence), or in the number experiencing adverse events (OR 0.83, 95% CI 0.51 to 1.35; 435 participants; five studies; I2 = 28%) in adults with macrolides compared with placebo.In children, there were no differences in exacerbation frequency (OR 0.40, 95% CI 0.11 to 1.41; 89 children; one study; low-quality evidence); hospitalisations (OR 0.28, 95% CI 0.07 to 1.11; 89 children; one study; low-quality evidence), serious adverse events, defined within the study as exacerbations of bronchiectasis or investigations related to bronchiectasis (OR 0.43, 95% CI 0.17 to 1.05; 89 children; one study; low-quality evidence), or adverse events (OR 0.78, 95% CI 0.33 to 1.83; 89 children; one study), in those receiving macrolides compared to placebo. The same study reported an increase in macrolide-resistant bacteria (OR 7.13, 95% CI 2.13 to 23.79; 89 children; one study), an increase in resistance to Streptococcus pneumoniae (OR 13.20, 95% CI 1.61 to 108.19; 89 children; one study), and an increase in resistance to Staphylococcus aureus (OR 4.16, 95% CI 1.06 to 16.32; 89 children; one study) with macrolides compared with placebo. Quality of life was not reported in the studies with children. AUTHORS' CONCLUSIONS Long-term macrolide therapy may reduce the frequency of exacerbations and improve quality of life, although supporting evidence is derived mainly from studies of azithromycin, rather than other macrolides, and predominantly among adults rather than children. However, macrolides should be used with caution, as limited data indicate an associated increase in microbial resistance. Macrolides are associated with increased risk of cardiovascular death and other serious adverse events in other populations, and available data cannot exclude a similar risk among patients with bronchiectasis.
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Affiliation(s)
- Carol Kelly
- Edge Hill UniversityFaculty of Health and Social CareOrmskirkUK
- Edge Hill UniversityPostgraduate Medical InstituteOrmskirkUK
| | - James D Chalmers
- University of Dundee, Ninewells Hospital and Medical SchoolDundeeUK
| | | | - Nicola Relph
- Edge Hill UniversityFaculty of Health and Social CareOrmskirkUK
- Edge Hill UniversityPostgraduate Medical InstituteOrmskirkUK
| | - Lambert M Felix
- University of OxfordNuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS)OxfordUK
| | - David J Evans
- Hemel Hempstead HospitalThoracic MedicineHillfield RoadHemel HempsteadHertsUKHP2 4AD
| | | | - Sally Spencer
- Edge Hill UniversityFaculty of Health and Social CareOrmskirkUK
- Edge Hill UniversityPostgraduate Medical InstituteOrmskirkUK
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Zimmermann P, Ziesenitz VC, Curtis N, Ritz N. The Immunomodulatory Effects of Macrolides-A Systematic Review of the Underlying Mechanisms. Front Immunol 2018; 9:302. [PMID: 29593707 PMCID: PMC5859047 DOI: 10.3389/fimmu.2018.00302] [Citation(s) in RCA: 158] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/02/2018] [Indexed: 12/11/2022] Open
Abstract
Background The mechanisms underlying the non-antimicrobial immunomodulatory properties of macrolides are not well understood. Objectives To systematically review the evidence for the immunomodulatory properties of macrolides in humans and to describe the underlying mechanism and extent of their influence on the innate and adaptive immune system. Methods A systematic literature search was done in MEDLINE using the OVID interface from 1946 to December 2016 according to the preferred reporting items for systematic reviews and meta-analysis (PRISMA). Original articles investigating the influence of four macrolides (azithromycin, clarithromycin, erythromycin, and roxithromycin) on immunological markers in humans were included. Results We identified 22 randomized, controlled trials, 16 prospective cohort studies, and 8 case–control studies investigating 47 different immunological markers (186 measurements) in 1,834 participants. The most frequently reported outcomes were a decrease in the number of neutrophils, and the concentrations of neutrophil elastase, interleukin (IL)-8, IL-6, IL-1beta, tumor necrosis factor (TNF)-alpha, eosinophilic cationic protein, and matrix metalloproteinase 9. Inhibition of neutrophil function was reported more frequently than eosinophil function. A decrease in T helper (Th) 2 cells cytokines (IL-4, IL-5, IL-6) was reported more frequently than a decrease in Th1 cytokines (IL-2, INF-gamma). Conclusion Macrolides influence a broad range of immunological mechanisms resulting in immunomodulatory effects. To optimize the treatment of chronic inflammatory diseases by macrolides, further studies are necessary, particularly comparing different macrolides and dose effect relationships.
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Affiliation(s)
- Petra Zimmermann
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia.,Infectious Diseases & Microbiology Research Group, Murdoch Children's Research Institute, Parkville, VIC, Australia.,Infectious Diseases Unit, The Royal Children's Hospital Melbourne, Parkville, VIC, Australia.,Infectious Diseases Unit, University of Basel Children's Hospital, Basel, Switzerland
| | - Victoria C Ziesenitz
- Paediatric Pharmacology, University of Basel Children's Hospital, Basel, Switzerland
| | - Nigel Curtis
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia.,Infectious Diseases & Microbiology Research Group, Murdoch Children's Research Institute, Parkville, VIC, Australia.,Infectious Diseases Unit, The Royal Children's Hospital Melbourne, Parkville, VIC, Australia
| | - Nicole Ritz
- Infectious Diseases & Microbiology Research Group, Murdoch Children's Research Institute, Parkville, VIC, Australia.,Infectious Diseases Unit, University of Basel Children's Hospital, Basel, Switzerland.,Paediatric Pharmacology, University of Basel Children's Hospital, Basel, Switzerland
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28
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Abstract
BACKGROUND Bronchiectasis is a long term respiratory condition with an increasing rate of diagnosis. It is associated with persistent symptoms, repeated infective exacerbations, and reduced quality of life, imposing a burden on individuals and healthcare systems. The main aims of therapeutic management are to reduce exacerbations and improve quality of life. Self-management interventions are potentially important for empowering people with bronchiectasis to manage their condition more effectively and to seek care in a timely manner. Self-management interventions are beneficial in the management of other airways diseases such as asthma and COPD (chronic obstructive pulmonary disease) and have been identified as a research priority for bronchiectasis. OBJECTIVES To assess the efficacy, cost-effectiveness and adverse effects of self-management interventions for adults and children with non-cystic fibrosis bronchiectasis. SEARCH METHODS We searched the Cochrane Airways Specialised Register of trials, clinical trials registers, reference lists of included studies and review articles, and relevant manufacturers' websites up to 13 December 2017. SELECTION CRITERIA We included all randomised controlled trials of any duration that included adults or children with a diagnosis of non-cystic fibrosis bronchiectasis assessing self-management interventions delivered in any form. Self-management interventions included at least two of the following elements: patient education, airway clearance techniques, adherence to medication, exercise (including pulmonary rehabilitation) and action plans. DATA COLLECTION AND ANALYSIS Two review authors independently screened searches, extracted study characteristics and outcome data and assessed risk of bias for each included study. Primary outcomes were, health-related quality of life, exacerbation frequency and serious adverse events. Secondary outcomes were the number of participants admitted to hospital on at least one occasion, lung function, symptoms, self-efficacy and economic costs. We used a random effects model for analyses and standard Cochrane methods throughout. MAIN RESULTS Two studies with a total of 84 participants were included: a 12-month RCT of early rehabilitation in adults of mean age 72 years conducted in two centres in England (UK) and a six-month proof-of-concept RCT of an expert patient programme (EPP) in adults of mean age 60 years in a single regional respiratory centre in Northern Ireland (UK). The EPP was delivered in group format once a week for eight weeks using standardised EPP materials plus disease-specific education including airway clearance techniques, dealing with symptoms, exacerbations, health promotion and available support. We did not find any studies that included children. Data aggregation was not possible and findings are reported narratively in the review.For the primary outcomes, both studies reported health-related quality of life, as measured by the St George's Respiratory Questionnaire (SGRQ), but there was no clear evidence of benefit. In one study, the mean SGRQ total scores were not significantly different at 6 weeks', 3 months' and 12 months' follow-up (12 months mean difference (MD) -10.27, 95% confidence interval (CI) -45.15 to 24.61). In the second study there were no significant differences in SGRQ. Total scores were not significantly different between groups (six months, MD 3.20, 95% CI -6.64 to 13.04). We judged the evidence for this outcome as low or very low. Neither of the included studies reported data on exacerbations requiring antibiotics. For serious adverse events, one study reported more deaths in the intervention group compared to the control group, (intervention: 4 of 8, control: 2 of 12), though interpretation is limited by the low event rate and the small number of participants in each group.For our secondary outcomes, there was no evidence of benefit in terms of frequency of hospital admissions or FEV1 L, based on very low-quality evidence. One study reported self-efficacy using the Chronic Disease Self-Efficacy scale, which comprises 10 components. All scales showed significant benefit from the intervention but effects were only sustained to study endpoint on the Managing Depression scale. Further details are reported in the main review. Based on overall study quality, we judged this evidence as low quality. Neither study reported data on respiratory symptoms, economic costs or adverse events. AUTHORS' CONCLUSIONS There is insufficient evidence to determine whether self-management interventions benefit people with bronchiectasis. In the absence of high-quality evidence it is advisable that practitioners adhere to current international guidelines that advocate self-management for people with bronchiectasis.Future studies should aim to clearly define and justify the specific nature of self-management, measure clinically important outcomes and include children as well as adults.
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Affiliation(s)
- Carol Kelly
- Edge Hill UniversityFaculty of Health and Social CareOrmskirkUK
| | - Seamus Grundy
- Aintree University HospitalDepartment of Thoracic MedicineLiverpoolUK
- University of LiverpoolInstitute of Translational MedicineLiverpoolUK
| | - Dave Lynes
- Edge Hill UniversityFaculty of Health and Social CareOrmskirkUK
| | - David JW Evans
- Lancaster UniversityLancaster Health HubLancasterUKLA1 4YG
| | - Sharada Gudur
- Lancashire Teaching Hospitals NHS Foundation TrustDepartment of Respiratory MedicinePrestonUK
| | | | - Sally Spencer
- Edge Hill UniversityPostgraduate Medical InstituteSt Helens RoadOrmskirkLancashireUKL39 4QP
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29
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Gallucci M, di Palmo E, Bertelli L, Camela F, Ricci G, Pession A. A pediatric disease to keep in mind: diagnostic tools and management of bronchiectasis in pediatric age. Ital J Pediatr 2017; 43:117. [PMID: 29284507 PMCID: PMC5747121 DOI: 10.1186/s13052-017-0434-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 12/05/2017] [Indexed: 12/21/2022] Open
Abstract
Bronchiectasis in pediatric age is a heterogeneous disease associated with significant morbidity.The most common medical conditions leading to bronchial damage are previous pneumonia and recurrent lower airway infections followed by underlying diseases such as immune-deficiencies, congenital airway defects, recurrent aspirations and mucociliary clearance disorders.The most frequent symptom is chronic wet cough. The introduction of high-resolution computed tomography (HRCT) has improved the time of diagnosis allowing earlier treatment.However, the term "bronchiectasis" in pediatric age should be used with caution, since some lesions highlighted with HRCT may improve or regress. The use of chest magnetic resonance imaging (MRI) as a radiation-free technique for the assessment and follow-up of lung abnormalities in non-Cystic Fibrosis chronic lung disease is promising.Non-Cystic Fibrosis Bronchiectasis management needs a multi-disciplinary team. Antibiotics and airway clearance techniques (ACT) represent the pillars of treatment even though guidelines in children are lacking. The Azithromycin thanks to its antinflammatory and direct antimicrobial effect could be a new strategy to prevent exacerbations.
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Affiliation(s)
- Marcella Gallucci
- Pediatric Unit, Department of Medical and Surgical Sciences, S. Orsola - Malpighi Hospital, University of Bologna, Via Massarenti 11, 40138, Bologna, Italy
| | - Emanuela di Palmo
- Pediatric Unit, Department of Medical and Surgical Sciences, S. Orsola - Malpighi Hospital, University of Bologna, Via Massarenti 11, 40138, Bologna, Italy
| | - Luca Bertelli
- Pediatric Unit, Department of Medical and Surgical Sciences, S. Orsola - Malpighi Hospital, University of Bologna, Via Massarenti 11, 40138, Bologna, Italy
| | - Federica Camela
- Pediatric Unit, Department of Medical and Surgical Sciences, S. Orsola - Malpighi Hospital, University of Bologna, Via Massarenti 11, 40138, Bologna, Italy
| | - Giampaolo Ricci
- Pediatric Unit, Department of Medical and Surgical Sciences, S. Orsola - Malpighi Hospital, University of Bologna, Via Massarenti 11, 40138, Bologna, Italy.
| | - Andrea Pession
- Pediatric Unit, Department of Medical and Surgical Sciences, S. Orsola - Malpighi Hospital, University of Bologna, Via Massarenti 11, 40138, Bologna, Italy
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30
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Uzunhan Y, Jeny F, Kambouchner M, Didier M, Bouvry D, Nunes H, Bernaudin JF, Valeyre D. The Lung in Dysregulated States of Humoral Immunity. Respiration 2017; 94:389-404. [PMID: 28910817 DOI: 10.1159/000480297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In common variable immunodeficiency, lung manifestations are related to different mechanisms: recurrent pneumonias due to encapsulated bacteria responsible for diffuse bronchiectasis, diffuse infiltrative pneumonia with various patterns, and lymphomas, mostly B cell extranodal non-Hodgkin type. The diagnosis relies on significant serum Ig deficiency and the exclusion of any primary or secondary cause. Histopathology may be needed. Immunoglobulin (IgG) replacement is crucial to prevent infections and bronchiectasis. IgG4-related respiratory disease, often associated with extrapulmonary localizations, presents with solitary nodules or masses, diffuse interstitial lung diseases, bronchiolitis, lymphadenopathy, and pleural or pericardial involvement. Diagnosis relies on international criteria including serum IgG4 dosage and significantly increased IgG4/IgG plasma cells ratio in pathologically suggestive biopsy. Respiratory amyloidosis presents with tracheobronchial, nodular, and cystic or diffuse interstitial lung infiltration. Usually of AL (amyloid light chain) subtype, it may be localized or systemic, primary or secondary to a lymphoproliferative process. Very rare other diseases due to nonamyloid IgG deposits are described. Among the various lung manifestations of dysregulated states of humoral immunity, this article covers only those associated with the common variable immunodeficiency, IgG4-related disease, amyloidosis, and pulmonary light-chain deposition disease. Autoimmune connective-vascular tissue diseases or lymphoproliferative disorders are addressed in other chapters of this issue.
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Al-Jahdali H, Alshimemeri A, Mobeireek A, Albanna AS, Al Shirawi NN, Wali S, Alkattan K, Alrajhi AA, Mobaireek K, Alorainy HS, Al-Hajjaj MS, Chang AB, Aliberti S. The Saudi Thoracic Society guidelines for diagnosis and management of noncystic fibrosis bronchiectasis. Ann Thorac Med 2017; 12:135-161. [PMID: 28808486 PMCID: PMC5541962 DOI: 10.4103/atm.atm_171_17] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 05/30/2017] [Indexed: 12/14/2022] Open
Abstract
This is the first guideline developed by the Saudi Thoracic Society for the diagnosis and management of noncystic fibrosis bronchiectasis. Local experts including pulmonologists, infectious disease specialists, thoracic surgeons, respiratory therapists, and others from adult and pediatric departments provided the best practice evidence recommendations based on the available international and local literature. The main objective of this guideline is to utilize the current published evidence to develop recommendations about management of bronchiectasis suitable to our local health-care system and available resources. We aim to provide clinicians with tools to standardize the diagnosis and management of bronchiectasis. This guideline targets primary care physicians, family medicine practitioners, practicing internists and respiratory physicians, and all other health-care providers involved in the care of the patients with bronchiectasis.
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Affiliation(s)
- Hamdan Al-Jahdali
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Department of Medicine, Pulmonary Division, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Abdullah Alshimemeri
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Department of Medicine, Pulmonary Division, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Abdullah Mobeireek
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
- King Faisal Specialist Hospital and Research Centre, Department of Medicine, Pulmonary Division, Riyadh, Saudi Arabia
| | - Amr S. Albanna
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Department of Medicine, Pulmonary Division, King Abdulaziz Medical City, Jeddah, Saudi Arabia
- King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
| | | | - Siraj Wali
- College of Medicine, King Abdulaziz University, Respiratory Unit, Department of Medicine, Jeddah, Saudi Arabia
| | - Khaled Alkattan
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Abdulrahman A. Alrajhi
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
- King Faisal Specialist Hospital and Research Centre, Department of Medicine, Infectious Disease Division, Riyadh, Saudi Arabia
| | - Khalid Mobaireek
- College of Medicine, King Saud University, King Khalid University Hospital, Pediatric Pulmonology Division, Riyadh, Saudi Arabia
| | - Hassan S. Alorainy
- King Faisal Specialist Hospital and Research Centre, Respiratory Therapy Services, Riyadh, Saudi Arabia
| | - Mohamed S. Al-Hajjaj
- Department of Clinical Sciences, College of Medicine. University of Sharjah, Sharjah, UAE
| | - Anne B. Chang
- International Reviewer, Children's Centre of Health Research Queensland University of Technology, Queensland
- International Reviewer, Brisbane and Child Health Division, Menzies School of Health Research, Darwin, Australia
| | - Stefano Aliberti
- International Reviewer, Department of Pathophysiology and Transplantation, University of MilanInternal Medicine Department, Respiratory Unit and Cystic Fibrosis Adult Center. Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Via Francesco Sforza 35, 20122, Milan, Italy
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Athanazio R, Pereira MC, Gramblicka G, Cavalcanti-Lundgren F, de Figueiredo MF, Arancibia F, Rached S, de la Rosa D, Máiz-Carro L, Girón R, Olveira C, Prados C, Martinez-Garcia MA. Latin America validation of FACED score in patients with bronchiectasis: an analysis of six cohorts. BMC Pulm Med 2017; 17:73. [PMID: 28446170 PMCID: PMC5406918 DOI: 10.1186/s12890-017-0417-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 04/19/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The FACED score is an easy-to-use multidimensional grading system that has demonstrated an excellent prognostic value for mortality in patients with bronchiectasis. A Spanish group developed the score but no multicenter international validation has yet been published. METHODS Retrospective and multicenter study conducted in six historical cohorts of patients from Latin America including 651 patients with bronchiectasis. Clinical, microbiological, functional, and radiological variables were collected, following the same criteria used in the original FACED score study. The vital status of all patients was determined in the fifth year of follow-up. The area under ROC curve (AUC-ROC) was used to calculate the predictive power of the FACED score for all-cause and respiratory deaths and both number and severity of exacerbations. The discriminatory power to divide patients into three groups of increasing severity was also analyzed. RESULTS Mean (SD) age of 48.2 (16), 32.9% of males. The mean FACED score was 2.35 (1.68). During the follow up, 95 patients (14.6%) died (66% from respiratory causes). The AUC ROC to predict all-cause and respiratory mortality were 0.81 (95% CI: 0.77 to 0.85) 0.84 (95% CI: 0.80 to 0.88) respectively, and 0.82 (95% CI: 078-0.87) for at least one hospitalization per year. The division into three score groups separated bronchiectasis into distinct mortality groups (mild: 3.7%; moderate: 20.7% and severe: 48.5% mortality; p < 0.001). CONCLUSIONS The FACED score was confirmed as an excellent predictor of all-cause and respiratory mortality and severe exacerbations, as well as having excellent discriminative capacity for different degrees of severity in various bronchiectasis populations.
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Affiliation(s)
- Rodrigo Athanazio
- Pulmonary Division, Heart Institute (InCor) do Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo, Av Dr Eneas de Carvalho Aguiar, 44 – 5 andar (Pneumologia), São Paulo, 05403-900 Brazil
| | | | - Georgina Gramblicka
- Pneumology Service, Hospital del Tórax. Dr A. Cetrángolo, Buenos Aires, Argentina
| | | | | | | | - Samia Rached
- Pulmonary Division, Heart Institute (InCor) do Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo, Av Dr Eneas de Carvalho Aguiar, 44 – 5 andar (Pneumologia), São Paulo, 05403-900 Brazil
| | | | - Luis Máiz-Carro
- Pneumology Service, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Rosa Girón
- Pneumology Service, Hospital Universtario La Princesa, Madrid, Spain
| | - Casilda Olveira
- Pneumology Service, Hospital General de Málaga, Málaga, Spain
| | - Concepción Prados
- Pneumology Service, Hopital Universitario La Paz-Carlos III, Madrid, Spain
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Kawamatawong T. Roles of roflumilast, a selective phosphodiesterase 4 inhibitor, in airway diseases. J Thorac Dis 2017; 9:1144-1154. [PMID: 28523172 DOI: 10.21037/jtd.2017.03.116] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Asthma and chronic obstructive pulmonary disease (COPD) are common chronic respiratory diseases. Both diseases have incompletely distinct pathophysiology, clinical manifestation, and treatment responsiveness. Pulmonary and systemic inflammations are the hallmarks of COPD. Most asthma responds to inhaled corticosteroid (ICS) treatment. In contrast, COPD is a corticosteroid-resistant disease. Bronchodilators are a preferred treatment method of COPD, with the aim of improving symptoms and preventing exacerbation. In addition, corticosteroid insensitivity is an underlying mechanism in severe asthma. An overlap of features between asthma and COPD, which was described as asthma-COPD overlap syndrome (ACOS) is not uncommon in practice. Novel nonsteroidal therapies focusing on inflammation in asthma and COPD have been developed. Selective phosphodiesterase 4 (PDE4) inhibitor is a promising class of drugs that has been studied for the treatment of COPD. Selective PDE4 inhibitor is different from xanthine in terms of mechanisms and pharmacokinetic profiles. This review focuses on clinical data on PDE4 inhibitors and its future roles in asthma, COPD, bronchiectasis, ACOS and other chronic non-pulmonary diseases.
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Affiliation(s)
- Theerasuk Kawamatawong
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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34
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O’Grady KAF, Grimwood K. The Likelihood of Preventing Respiratory Exacerbations in Children and Adolescents with either Chronic Suppurative Lung Disease or Bronchiectasis. Front Pediatr 2017; 5:58. [PMID: 28393062 PMCID: PMC5364147 DOI: 10.3389/fped.2017.00058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 03/08/2017] [Indexed: 12/18/2022] Open
Abstract
Chronic suppurative lung disease (CSLD) and bronchiectasis in children and adolescents are important causes of respiratory morbidity and reduced quality of life (QoL), also leading to subsequent premature death during adulthood. Acute respiratory exacerbations in pediatric CSLD and bronchiectasis are important markers of disease control clinically, given that they impact upon QoL and increase health-care-associated costs and can adversely affect future lung functioning. Preventing exacerbations in this population is, therefore, likely to have significant individual, familial, societal, and health-sector benefits. In this review, we focus on therapeutic interventions, such as drugs (antibiotics, mucolytics, hyperosmolar agents, bronchodilators, corticosteroids, non-steroidal anti-inflammatory agents), vaccines and physiotherapy, and care-planning, such as post-hospitalization management and health promotion strategies, including exercise, diet, and reducing exposure to environmental toxicants. The review identified a conspicuous lack of moderate or high-quality evidence for preventing respiratory exacerbations in children and adolescents with CSLD or bronchiectasis. Given the short- and long-term impact of exacerbations upon individuals, their families, and society as a whole, large studies addressing interventions at the primary and tertiary prevention phases are required. This research must include children and adolescents in both developing and developed countries and address long-term health outcomes.
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Affiliation(s)
- Kerry-Ann F O’Grady
- Institute of Health and Biomedical Innovation, Queensland University of Technology, South Brisbane, QLD, Australia
| | - Keith Grimwood
- Menzies Health Research Institute Queensland, Griffith University, Gold Coast Health, Southport, QLD, Australia
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Pollock M, Fernandes RM, Hartling L. Evaluation of AMSTAR to assess the methodological quality of systematic reviews in overviews of reviews of healthcare interventions. BMC Med Res Methodol 2017; 17:48. [PMID: 28335734 PMCID: PMC5364717 DOI: 10.1186/s12874-017-0325-5] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 03/14/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Overviews of reviews (overviews) compile information from multiple systematic reviews (SRs) to provide a single synthesis of relevant evidence for decision-making. It is recommended that authors assess and report the methodological quality of SRs in overviews-for example, using A MeaSurement Tool to Assess systematic Reviews (AMSTAR). Currently, there is variation in whether and how overview authors assess and report SR quality, and limited guidance is available. Our objectives were to: examine methodological considerations involved in using AMSTAR to assess the quality of Cochrane and non-Cochrane SRs in overviews of healthcare interventions; identify challenges (and develop potential decision rules) when using AMSTAR in overviews; and examine the potential impact of considering methodological quality when making inclusion decisions in overviews. METHODS We selected seven overviews of healthcare interventions and included all SRs meeting each overview's inclusion criteria. For each SR, two reviewers independently conducted AMSTAR assessments with consensus and discussed challenges encountered. We also examined the correlation between AMSTAR assessments and SR results/conclusions. RESULTS Ninety-five SRs were included (30 Cochrane, 65 non-Cochrane). Mean AMSTAR assessments (9.6/11 vs. 5.5/11; p < 0.001) and inter-rater reliability (AC1 statistic: 0.84 vs. 0.69; "almost perfect" vs. "substantial" using the Landis & Koch criteria) were higher for Cochrane compared to non-Cochrane SRs. Four challenges were identified when applying AMSTAR in overviews: the scope of the SRs and overviews often differed; SRs examining similar topics sometimes made different methodological decisions; reporting of non-Cochrane SRs was sometimes poor; and some non-Cochrane SRs included other SRs as well as primary studies. Decision rules were developed to address each challenge. We found no evidence that AMSTAR assessments were correlated with SR results/conclusions. CONCLUSIONS Results indicate that the AMSTAR tool can be used successfully in overviews that include Cochrane and non-Cochrane SRs, though decision rules may be useful to circumvent common challenges. Findings support existing recommendations that quality assessments of SRs in overviews be conducted independently, in duplicate, with a process for consensus. Results also suggest that using methodological quality to guide inclusion decisions (e.g., to exclude poorly conducted and reported SRs) may not introduce bias into the overview process.
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Affiliation(s)
- Michelle Pollock
- Alberta Research Centre for Health Evidence, Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - Ricardo M. Fernandes
- Clinical Pharmacology Unit, Instituto de Medicina Molecular, University of Lisbon, Lisbon, Portugal
- Department of Pediatrics, Santa Maria Hospital, Lisbon, Portugal
| | - Lisa Hartling
- Alberta Research Centre for Health Evidence, Department of Pediatrics, University of Alberta, Edmonton, Canada
- 4-472 Edmonton Clinic Health Academy, 11405 87 Avenue NW, Edmonton, AB T6G-1C9 Canada
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Kaehne A, Milan SJ, Felix LM, Spencer S, Sheridan E, Marsden PA. Head-to-head trials of antibiotics for non-cystic fibrosis bronchiectasis. Hippokratia 2017. [DOI: 10.1002/14651858.cd012590] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Axel Kaehne
- Faculty of Health and Social Care, Edge Hill University; Ormskirk UK
| | | | - Lambert M Felix
- Edge Hill University; Postgraduate Medical Institute; St Helens Road Ormskirk Lancashire UK L39 4QP
| | - Sally Spencer
- Edge Hill University; Postgraduate Medical Institute; St Helens Road Ormskirk Lancashire UK L39 4QP
| | - Emer Sheridan
- Lancashire Teaching Hospitals NHS Foundation Trust; Pharmacy; Preston UK
| | - Paul A Marsden
- Lancashire Teaching Hospitals NHS Foundation Trust, Royal Preston Hospital; Lancashire Chest Centre; Preston UK
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Spencer S, Felix LM, Milan SJ, Normansell R, Goeminne PC, Chalmers JD. Oral versus inhaled antibiotics for non-cystic fibrosis bronchiectasis. Hippokratia 2017. [DOI: 10.1002/14651858.cd012579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sally Spencer
- Edge Hill University; Faculty of Health and Social Care; St Helens Road Ormskirk Lancashire UK L39 4QP
| | - Lambert M Felix
- Edge Hill University; Faculty of Health and Social Care; St Helens Road Ormskirk Lancashire UK L39 4QP
| | | | - Rebecca Normansell
- St George's, University of London; Cochrane Airways, Population Health Research Institute; London UK SW17 0RE
| | | | - James D Chalmers
- University of Dundee, Ninewells Hospital and Medical School; Dundee UK
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38
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Kelly C, Spencer S, Grundy S, Lynes D, Evans DJW. Self-management for non-cystic fibrosis bronchiectasis. Hippokratia 2017. [DOI: 10.1002/14651858.cd012528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Carol Kelly
- Edge Hill University; Faculty of Health and Social Care; Ormskirk UK
| | - Sally Spencer
- Edge Hill University; Faculty of Health and Social Care; Ormskirk UK
| | - Seamus Grundy
- Aintree University Hospital; Department of Thoracic Medicine; Liverpool UK
- University of Liverpool; Institute of Translational Medicine; Liverpool UK
| | - Dave Lynes
- Edge Hill University; Faculty of Health and Social Care; Ormskirk UK
| | - David JW Evans
- Lancaster University; Lancaster Health Hub; Lancaster UK LA1 4YG
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Medley N, Vogel JP, Care A, Alfirevic Z. Interventions during pregnancy to prevent spontaneous preterm birth: an overview of Cochrane systematic reviews. Hippokratia 2017. [DOI: 10.1002/14651858.cd012505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Nancy Medley
- The University of Liverpool; Cochrane Pregnancy and Childbirth Group, Department of Women's and Children's Health; First Floor, Liverpool Women's NHS Foundation Trust Crown Street Liverpool UK L8 7SS
| | - Joshua P Vogel
- World Health Organization; UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Reproductive Health and Research; Avenue Appia 20 Geneva Switzerland CH-1211
| | - Angharad Care
- The University of Liverpool; Department of Women's and Children's Health; First Floor, Liverpool Women's NHS Foundation Trust Crown Street Liverpool UK L8 7SS
| | - Zarko Alfirevic
- The University of Liverpool; Department of Women's and Children's Health; First Floor, Liverpool Women's NHS Foundation Trust Crown Street Liverpool UK L8 7SS
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40
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Nathan AM, de Bruyne JA, Eg KP, Thavagnanam S. Review: Quality of Life in Children with Non-cystic Fibrosis Bronchiectasis. Front Pediatr 2017; 5:84. [PMID: 28596950 PMCID: PMC5442180 DOI: 10.3389/fped.2017.00084] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 04/05/2017] [Indexed: 11/29/2022] Open
Abstract
Non-cystic fibrosis bronchiectasis (NCFB) has gained renewed interest, due to its increasing health-care burden. Annual mortality statistics in England and Wales showed that under 1,000 people die from bronchiectasis each year, and this number is increasing by 3% yearly. Unfortunately, there is a severe lack of well-powered, randomized controlled trials to guide clinicians how to manage NCFB effectively. Quality-of-life (QOL) measures in NCFB are an important aspect of clinical care that has not been studied well. Commonly used disease-specific questionnaires in children with NCFB are the St George's Respiratory Questionnaire, Short Form-36, the Leicester Cough Questionnaire, and the Parent Cough-Specific Quality of Life questionnaire (PC-QOL). Of these, only the PC-QOL can be used in young children, as it is a parent-proxy questionnaire. We reviewed pediatric studies looking at QOL in children with NCFB and cystic fibrosis. All types of airway clearance techniques appear to be safe and have no significant benefit over each other. Number of exacerbations and hospitalizations correlated with QOL scores, while symptom subscales correlated with lung function, worse QOL, frequent antibiotic requirements, and duration of regular follow-up in only one study. There was a correlation between QOL and age of diagnosis in children with primary ciliary dyskinesia. Other studies have shown no relationship between QOL scores and etiology of NCFB as well as CT changes. As for treatments, oral azithromycin and yoga have demonstrated some improvement in QOL scores. In conclusion, more studies are required to accurately determine important factors contributing to QOL.
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Affiliation(s)
- Anna Marie Nathan
- Department of Pediatrics, University of Malaya, Kuala Lumpur, Malaysia.,University Malaya Pediatric and Child Health Research Group, University of Malaya, Kuala Lumpur, Malaysia
| | - Jessie Anne de Bruyne
- Department of Pediatrics, University of Malaya, Kuala Lumpur, Malaysia.,University Malaya Pediatric and Child Health Research Group, University of Malaya, Kuala Lumpur, Malaysia
| | - Kah Peng Eg
- Department of Pediatrics, University of Malaya, Kuala Lumpur, Malaysia.,University Malaya Pediatric and Child Health Research Group, University of Malaya, Kuala Lumpur, Malaysia
| | - Surendran Thavagnanam
- Department of Pediatrics, University of Malaya, Kuala Lumpur, Malaysia.,University Malaya Pediatric and Child Health Research Group, University of Malaya, Kuala Lumpur, Malaysia
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41
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Schussler E, Beasley MB, Maglione PJ. Lung Disease in Primary Antibody Deficiencies. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2016; 4:1039-1052. [PMID: 27836055 PMCID: PMC5129846 DOI: 10.1016/j.jaip.2016.08.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/03/2016] [Accepted: 08/22/2016] [Indexed: 01/08/2023]
Abstract
Primary antibody deficiencies (PADs) are the most common form of primary immunodeficiency and predispose to severe and recurrent pulmonary infections, which can result in chronic lung disease including bronchiectasis. Chronic lung disease is among the most common complications of PAD and a significant source of morbidity and mortality for these patients. However, the development of lung disease in PAD may not be solely the result of recurrent bacterial infection or a consequence of bronchiectasis. Recent characterization of monogenic immune dysregulation disorders and more extensive study of common variable immunodeficiency have demonstrated that interstitial lung disease (ILD) in PAD can result from generalized immune dysregulation and frequently occurs in the absence of pneumonia history or bronchiectasis. This distinction between bronchiectasis and ILD has important consequences in the evaluation and management of lung disease in PAD. For example, treatment of ILD in PAD typically uses immunomodulatory approaches in addition to immunoglobulin replacement and antibiotic prophylaxis, which are the stalwarts of bronchiectasis management in these patients. Although all antibody-deficient patients are at risk of developing bronchiectasis, ILD occurs in some forms of PAD much more commonly than in others, suggesting that distinct but poorly understood immunological factors underlie the development of this complication. Importantly, ILD can have earlier onset and may worsen survival more than bronchiectasis. Further efforts to understand the pathogenesis of lung disease in PAD will provide vital information for the most effective methods of diagnosis, surveillance, and treatment of these patients.
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Affiliation(s)
- Edith Schussler
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Mary B Beasley
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Paul J Maglione
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY.
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Kelly C, Evans DJ, Chalmers JD, Crossingham I, Spencer S, Relph N, Felix LM, Milan SJ. Macrolide antibiotics for non-cystic fibrosis bronchiectasis. Hippokratia 2016. [DOI: 10.1002/14651858.cd012406] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Carol Kelly
- Edge Hill University; Faculty of Health and Social Care; Ormskirk UK
| | - David J Evans
- Hemel Hempstead Hospital; Thoracic Medicine; Hillfield Road Hemel Hempstead Herts UK HP2 4AD
| | - James D Chalmers
- University of Dundee, Ninewells Hospital and Medical School; Dundee UK
| | | | - Sally Spencer
- Edge Hill University; Faculty of Health and Social Care; Ormskirk UK
| | - Nicola Relph
- Edge Hill University; Physical Activity and Sport; Ormskirk UK
| | - Lambert M Felix
- Edge Hill University; Faculty of Health and Social Care; Ormskirk UK
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43
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Redondo M, Keyt H, Dhar R, Chalmers JD. Global impact of bronchiectasis and cystic fibrosis. Breathe (Sheff) 2016; 12:222-235. [PMID: 28210295 PMCID: PMC5298141 DOI: 10.1183/20734735.007516] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
EDUCATIONAL AIMS To recognise the clinical and radiological presentation of the spectrum of diseases associated with bronchiectasis.To understand variation in the aetiology, microbiology and burden of bronchiectasis and cystic fibrosis across different global healthcare systems. Bronchiectasis is the term used to refer to dilatation of the bronchi that is usually permanent and is associated with a clinical syndrome of cough, sputum production and recurrent respiratory infections. It can be caused by a range of inherited and acquired disorders, or may be idiopathic in nature. The most well recognised inherited disorder in Western countries is cystic fibrosis (CF), an autosomal recessive condition that leads to progressive bronchiectasis, bacterial infection and premature mortality. Both bronchiectasis due to CF and bronchiectasis due to other conditions are placing an increasing burden on healthcare systems internationally. Treatments for CF are becoming more effective leading to more adult patients with complex healthcare needs. Bronchiectasis not due to CF is becoming increasingly recognised, particularly in the elderly population. Recognition is important and can lead to identification of the underlying cause, appropriate treatment and improved quality of life. The disease is highly diverse in its presentation, requiring all respiratory physicians to have knowledge of the different "bronchiectasis syndromes". The most common aetiologies and presenting syndromes vary depending on geography, with nontuberculous mycobacterial disease predominating in some parts of North America, post-infectious and idiopathic disease predominating in Western Europe, and post-tuberculosis bronchiectasis dominating in South Asia and Eastern Europe. Ongoing global collaborative studies will greatly advance our understanding of the international impact of bronchiectasis and CF.
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Affiliation(s)
| | - Holly Keyt
- University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Raja Dhar
- Fortis Hospital, Kolkata, West Bengal, India
| | - James D Chalmers
- Scottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
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McDonnell MJ, Aliberti S, Goeminne PC, Dimakou K, Zucchetti SC, Davidson J, Ward C, Laffey JG, Finch S, Pesci A, Dupont LJ, Fardon TC, Skrbic D, Obradovic D, Cowman S, Loebinger MR, Rutherford RM, De Soyza A, Chalmers JD. Multidimensional severity assessment in bronchiectasis: an analysis of seven European cohorts. Thorax 2016; 71:1110-1118. [PMID: 27516225 PMCID: PMC5136700 DOI: 10.1136/thoraxjnl-2016-208481] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 06/19/2016] [Accepted: 06/26/2016] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Bronchiectasis is a multidimensional disease associated with substantial morbidity and mortality. Two disease-specific clinical prediction tools have been developed, the Bronchiectasis Severity Index (BSI) and the FACED score, both of which stratify patients into severity risk categories to predict the probability of mortality. METHODS We aimed to compare the predictive utility of BSI and FACED in assessing clinically relevant disease outcomes across seven European cohorts independent of their original validation studies. RESULTS The combined cohorts totalled 1612. Pooled analysis showed that both scores had a good discriminatory predictive value for mortality (pooled area under the curve (AUC) 0.76, 95% CI 0.74 to 0.78 for both scores) with the BSI demonstrating a higher sensitivity (65% vs 28%) but lower specificity (70% vs 93%) compared with the FACED score. Calibration analysis suggested that the BSI performed consistently well across all cohorts, while FACED consistently overestimated mortality in 'severe' patients (pooled OR 0.33 (0.23 to 0.48), p<0.0001). The BSI accurately predicted hospitalisations (pooled AUC 0.82, 95% CI 0.78 to 0.84), exacerbations, quality of life (QoL) and respiratory symptoms across all risk categories. FACED had poor discrimination for hospital admissions (pooled AUC 0.65, 95% CI 0.63 to 0.67) with low sensitivity at 16% and did not consistently predict future risk of exacerbations, QoL or respiratory symptoms. No association was observed with FACED and 6 min walk distance (6MWD) or lung function decline. CONCLUSION The BSI accurately predicts mortality, hospital admissions, exacerbations, QoL, respiratory symptoms, 6MWD and lung function decline in bronchiectasis, providing a clinically relevant evaluation of disease severity.
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Affiliation(s)
- M J McDonnell
- Department of Respiratory Medicine, Galway University Hospitals, Galway, Ireland.,Institute of Cellular Medicine and Adult Bronchiectasis Service, Freeman Hospital, Newcastle University, Newcastle-upon-Tyne, UK.,Lung Biology Group, National University of Ireland, Galway, Ireland
| | - S Aliberti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Cardio-thoracic Unit and Cystic Fibrosis Adult Center, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - P C Goeminne
- Department of Respiratory Medicine, University Hospital Gasthuisberg, Leuven, Belgium.,Department of Respiratory Medicine, AZ Nikolaas, Sint-Niklaas, Belgium
| | - K Dimakou
- Fifth Department of Pulmonary Medicine, "Sotiria" Chest Diseases Hospital, Athens, Greece
| | - S C Zucchetti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.,Cardio-thoracic Unit and Cystic Fibrosis Adult Center, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - J Davidson
- Institute of Cellular Medicine and Adult Bronchiectasis Service, Freeman Hospital, Newcastle University, Newcastle-upon-Tyne, UK
| | - C Ward
- Institute of Cellular Medicine and Adult Bronchiectasis Service, Freeman Hospital, Newcastle University, Newcastle-upon-Tyne, UK
| | - J G Laffey
- Lung Biology Group, National University of Ireland, Galway, Ireland.,Department of Anesthesia, Keenan Research Centre for Biomedical Science, St Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - S Finch
- Scottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - A Pesci
- Department of Health Science, University of Milan Bicocca, Clinica Pneumologica, AO San Gerardo, Monza, Italy
| | - L J Dupont
- Department of Respiratory Medicine, University Hospital Gasthuisberg, Leuven, Belgium
| | - T C Fardon
- Scottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - D Skrbic
- Institute for Pulmonary Diseases of Vojvodina Sremska Kamenica, Put doktora Goldmana 4, Sremska Kamenica, Serbia
| | - D Obradovic
- Institute for Pulmonary Diseases of Vojvodina Sremska Kamenica, Put doktora Goldmana 4, Sremska Kamenica, Serbia
| | - S Cowman
- Host Defence Unit, Royal Brompton Hospital and UK Imperial College, London, UK
| | - M R Loebinger
- Host Defence Unit, Royal Brompton Hospital and UK Imperial College, London, UK
| | - R M Rutherford
- Department of Respiratory Medicine, Galway University Hospitals, Galway, Ireland
| | - A De Soyza
- Institute of Cellular Medicine and Adult Bronchiectasis Service, Freeman Hospital, Newcastle University, Newcastle-upon-Tyne, UK
| | - J D Chalmers
- Scottish Centre for Respiratory Research, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
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Pinto EH, Longo PL, de Camargo CCB, Dal Corso S, Lanza FDC, Stelmach R, Athanazio R, Fernandes KPS, Mayer MPA, Bussadori SK, Mesquita Ferrari RA, Horliana ACRT. Assessment of the quantity of microorganisms associated with bronchiectasis in saliva, sputum and nasal lavage after periodontal treatment: a study protocol of a randomised controlled trial. BMJ Open 2016; 6:e010564. [PMID: 27084279 PMCID: PMC4838683 DOI: 10.1136/bmjopen-2015-010564] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 03/19/2016] [Accepted: 03/22/2016] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION The association between periodontal disease (PD) and chronic obstructive pulmonary disease (COPD) has been widely studied, with aspiration of periodontal pathogens being one of the most accepted causal mechanisms for pulmonary exacerbation. Periodontal treatment (PT) was associated with a decrease in these exacerbations. Bronchiectasis is a pulmonary disease that has many similarities to COPD; however, there are no studies correlating this condition to PD thus far. This study will evaluate if PT reduces proinflammatory cytokines in serum and saliva, as well as halitosis and the amount of microorganisms associated with exacerbation of bronchiectasis in saliva, sputum and nasal lavage 3 months after PT. METHODS AND ANALYSIS A total of 182 patients with PD and bronchiectasis will be randomly allocated to group 1 (positive control; scaling and root planing (SRP)+oral hygiene (OH)) or group 2 (experimental; SRP+photodynamic therapy+OH). After 3 months, samples of saliva, nasal lavage and sputum will be collected to determine the level of Pseudomonas aeruginosa, Staphylococcus aureus and Porphyromonas gingivalis by quantitative PCR. This protocol will determine the efficacy of PT in reducing the most likely niches of bronchiectasis exacerbation by comparing pre- and post-treatment microbiology samples. Furthermore, there will be assessment of oral halitosis and verification of inflammatory cytokines in serum and saliva. ETHICS AND DISSEMINATION This protocol has been approved by the Research Ethics Committee of Universidade Nove de Julho. Data will be published in a peer-reviewed journal. TRIAL REGISTRATION NUMBER NCT02514226.
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Affiliation(s)
- Erika Horácio Pinto
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
| | - Priscila Larcher Longo
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
| | | | - Simone Dal Corso
- Rehabilitation Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
| | | | - Rafael Stelmach
- Pulmonary Department, Heart Institute (InCor), School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Rodrigo Athanazio
- Pulmonary Department, Heart Institute (InCor), School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Kristianne Porta Santos Fernandes
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
- Rehabilitation Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
| | - Marcia Pinto Alves Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Sandra Kalil Bussadori
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
- Rehabilitation Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
| | - Raquel Agnelli Mesquita Ferrari
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
- Rehabilitation Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
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Chalmers JD. Bronchiectasis: working together for better evidence. THE LANCET RESPIRATORY MEDICINE 2015; 3:915-7. [PMID: 26679018 PMCID: PMC7172232 DOI: 10.1016/s2213-2600(15)00437-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 10/15/2015] [Indexed: 11/28/2022]
Affiliation(s)
- James D Chalmers
- College of Medicine, University of Dundee, and Ninewells Hospital and Medical School, Dundee DD1 9SY, UK.
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McCullough A, Thomas ET, Ryan C, Bradley JM, O'Neill B, Elborn S, Hughes C. Interventions for enhancing adherence to treatment in adults with bronchiectasis. Cochrane Database Syst Rev 2015; 2015:CD011023. [PMID: 26576499 PMCID: PMC6483476 DOI: 10.1002/14651858.cd011023.pub2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Bronchiectasis is characterised by a widening of the airways, leading to excess mucus production and recurrent infection. It is more prevalent in women and those in middle age. Many patients with bronchiectasis do not adhere to treatments (medications, exercise and airway clearance) prescribed for their condition. The best methods to change these adherence behaviours have not been identified. OBJECTIVES To assess the effects of interventions to enhance adherence to any aspect of treatment in adults with bronchiectasis in terms of adherence and health outcomes, such as pulmonary exacerbations, health-related quality of life and healthcare costs. SEARCH METHODS We searched the Cochrane Airways Group Specialised Register (CAGR), which contains trial reports identified through systematic searches of CENTRAL, MEDLINE, EMBASE, CINAHL, AMED and PsycINFO, from inception to October 2015. SELECTION CRITERIA We planned to include randomised controlled trials (RCTs) of adults with bronchiectasis that compared any intervention aimed at enhancing adherence versus no intervention, usual care or another adherence intervention. We excluded studies of those who had bronchiectasis due to cystic fibrosis. DATA COLLECTION AND ANALYSIS Two review authors (AMcC and ET) independently screened titles, abstracts and full-texts of identified studies. MAIN RESULTS Searches retrieved 36 studies reported in 37 articles; no eligible studies were identified. AUTHORS' CONCLUSIONS We did not identify any studies that assessed the effect of interventions to enhance adherence to treatment in bronchiectasis. Adequately powered, well-designed trials of adherence interventions for bronchiectasis are needed.
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Affiliation(s)
- Amanda McCullough
- Bond UniversityCentre for Research in Evidence‐Based Practice (CREBP)Gold CoastQueenslandAustralia
| | - Elizabeth T Thomas
- Bond UniversityCentre for Research in Evidence‐Based Practice (CREBP)Gold CoastQueenslandAustralia
| | - Cristin Ryan
- Royal College of Surgeons in IrelandSchool of Pharmacy111 St Stephen’s GreenDublin 2Ireland
| | - Judy M Bradley
- Queen's University BelfastThe Wellcome Trust‐Wolfson Northern Ireland Clinical Research Facility U FloorBelfast City HospitalLisburn RoadBelfastNorthern IrelandUKBT9 7AB
- Belfast Health and Social Care TrustDepartment of Respiratory MedicineLisburn RoadBelfastUKBT9 7AB
| | - Brenda O'Neill
- Ulster UniversityCentre for Health and Rehabilitation Technologies (CHaRT), Institute of Nursing and Health ResearchNewtownabbeyNorthern IrelandUK
| | - Stuart Elborn
- Belfast Health and Social Care TrustDepartment of Respiratory MedicineLisburn RoadBelfastUKBT9 7AB
- Queen's University BelfastCentre for Infection and ImmunityHealth Sciences Building97 Lisburn RoadBelfastNorthern IrelandUKBT9 7BL
| | - Carmel Hughes
- Queen's University BelfastSchool of Pharmacy97 Lisburn RoadBelfastNorthern IrelandUKBT9 7BL
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Gupta AK, Lodha R, Kabra SK. Non Cystic Fibrosis Bronchiectasis. Indian J Pediatr 2015; 82:938-44. [PMID: 26307756 DOI: 10.1007/s12098-015-1866-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 07/28/2015] [Indexed: 10/23/2022]
Abstract
Bronchiectasis is a pathological abnormality of the airways in which there is permanent dilatation and thickening of the airways. Precise incidence/prevalence in India is not known. Recent data suggests that about 1 % young children admitted in a hospital with pneumonia may develop bronchiectasis. Due to significant burden of pneumonia in young children in developing countries including India, it may be a significant problem that is possibly under recognized. Causes of bronchiectasis depend on the burden of respiratory infections and availability of the investigations for identification of the underlying cause. Post infectious causes are common in countries where infections are more common; however, since these countries are usually resource constrained and therefore, are not able to appropriately diagnose the other causes, leading to more than real overrepresentation of infections as a cause. In countries with less of infectious illnesses and good diagnostic facilities, malformations of airways, immune deficiency disorders and primary ciliary dyskinesia are common causes of bronchiectasis. High resolution CT scan of chest confirms the diagnosis. Treatment is supportive care and consists of maintenance of nutrition, airway clearance and antibiotics for exacerbations. Medical treatment is successful in the majority.
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Affiliation(s)
- Anand K Gupta
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Rakesh Lodha
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Sushil K Kabra
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India.
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Welsh EJ, Evans DJ, Fowler SJ, Spencer S. Interventions for bronchiectasis: an overview of Cochrane systematic reviews. Cochrane Database Syst Rev 2015; 2015:CD010337. [PMID: 26171905 PMCID: PMC7086475 DOI: 10.1002/14651858.cd010337.pub2] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Bronchiectasis is a chronic respiratory disease characterised by abnormal dilatation of the bronchi, and presents typically with a chronic productive cough (or chronic wet cough in children) and recurrent infective exacerbations. It significantly impacts daily activities and quality of life, and can lead to recurrent hospitalisations, severe lung function impairment, respiratory failure and even death. OBJECTIVES To provide an overview of the efficacy and safety of interventions for adults and children with bronchiectasis from Cochrane reviews.To identify gaps in the evidence base that will inform recommendations for new research and reviews, and to summarise information on reported outcomes and make recommendations for the reporting of standard outcomes in future trials and reviews. METHODS We included Cochrane reviews of non-cystic fibrosis (CF) bronchiectasis. We searched the Cochrane Database of Systematic Reviews. The search is current to 11 February 2015. We also identified trials that were potentially eligible for, but not currently included in, published reviews to make recommendations for new Cochrane reviews. We assessed the quality of included reviews using the AMSTAR criteria. We presented an evidence synthesis of data from reviews alongside an evidence map of clinical trials and guideline data. The primary outcomes were exacerbations, lung function and quality of life. MAIN RESULTS We included 21 reviews but extracted data from, and rated the quality of, only nine reviews that reported results for people with bronchiectasis alone. Of the reviews with no usable data, two reviews included studies with mixed clinical populations where data were not reported separately for people with bronchiectasis and 10 reviews did not contain any trials. Of the 40 studies included across the nine reviews, three (number of participants nine to 34) included children. The studies ranged from single session to year-long studies. Each review included from one to 11 trials and 28 (70%) trials in the overview included 40 or fewer participants. The total number of participants included in reviews ranged from 40 to 1040. The age range of adult participants was from 36 to 73 years and children ranged from six to 16 years. The proportion of male participants ranged from 21% to 72%. Where reported, mean baseline forced expiratory volume in one second (FEV1) ranged from 1.17 L to 1.66 L and from 47% to 88% predicted. Most of the reviews had search dates older than two years.We have summarised the published evidence as outlined in Cochrane reviews, but it was not possible to draw definitive conclusions. There was inconclusive evidence on the use of long-term antibiotics and nebulised hypertonic saline for reducing exacerbation frequency and evidence that human deoxyribonuclease (RhDNase) increases exacerbation frequency. Improvements in lung function were reported for inhaled corticosteroids (ICS) though this was small and not clinically relevant. Evidence of benefit for hyperosmolar agents and mucolytics was inconclusive. There was limited evidence of improvements in quality of life with airway clearance techniques and physical therapy but evidence of benefit for hyperosmolar agents was inconclusive. Secondary outcomes were not clearly reported in all trials in the included reviews. Improvements in dyspnoea, wheeze and cough-free days were reported for small trials of ICS and LABA (long-acting beta2-agonsts)/ICS and cough reduction was also reported for a small bromhexine trial. Reduction in sputum production was reported for long-term antibiotics and airway clearance techniques but evidence of benefit for hyperosmolar agents was inconclusive.Adverse events were included as outcomes in seven reviews. The review of long-term (four weeks to one year) prophylactic courses of antibiotics reported significantly more cases of wheeze (Peto odd ratio (OR) 8.56, 95% confidence intervals (CI) 1.63 to 44.93), dyspnoea (12 versus three, P value = 0.01) and chest pain (seven versus zero, P value = 0.01) from the same trial (74 participants) but no differences in occurrence of diarrhoea, rash or number of withdrawals. In the review of mucolytics versus placebo, relevant outcomes were not reported for erdosteine comparisons and no significant adverse effects were reported for bromhexine, though adverse events were associated with RhDNase (OR 28.19, 95% CI 3.77 to 210.85, 1 study). Of the remaining five reviews, adverse events were not reported in the single trials included in the ICS review or the physical therapy review and the impact of adverse events in the single trial included in the inhaled LABA/ICS combination versus ICS review were unclear. The reviews of short-term courses of antibiotics and inhaled hyperosmolar agents reported no significant differences in occurrence of adverse events. Fewer admissions to hospital were reported for long-term antibiotics, but this outcome was not reported in all reviews. No reviews reported differences in mortality, but again this outcome was not included in all reviews.We did not explicitly include antibiotic resistance as an outcome in the review, but this was unclear in the Cochrane reviews and evidence from other trials should be considered.We rated all reviews as high quality (AMSTAR), though opportunities for improved reporting (e.g. summary of findings and GRADE evaluation of the evidence) were identified for inclusion in future updates of the reviews. However, the majority of trials were not high quality and confidence in the effects of treatments, therefore, requires additional evidence from larger and more methodologically robust trials. We evaluated the overall coverage of important topics in bronchiectasis by mapping the quality of the current evidence base against published guidelines and identifying high priority areas for new research on; use of short-course and long-term antibiotics, ICS and oral corticosteroids, inhaled hyperosmolars, mucolytics, and use of airway clearance techniques. AUTHORS' CONCLUSIONS This overview clearly points to significant opportunities for further research aimed at improving outcomes for people with bronchiectasis. We have highlighted important endpoints for studies (particularly exacerbations, quality of life and lung function), and areas of clinical practice that are in most urgent need of evidence-based support (including long-term antibiotics, ICSs and mucolytics).As the evidence is confined to small trials of short duration, it is not currently possible to assess the balance between the benefits and potential harms of treatments for bronchiectasis.
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Affiliation(s)
- Emma J Welsh
- St George's, University of LondonPopulation Health Research InstituteCranmer TerraceLondonUKSW17 0RE
| | - David J Evans
- Hemel Hempstead HospitalThoracic MedicineHillfield RoadHemel HempsteadHertsUKHP2 4AD
- Harefield HospitalHill End RoadHarefieldUKUB9 6JH
| | - Stephen J Fowler
- University Hospital of South ManchesterUniversity of Manchester, NIHR Respiratory and Allergy Clinical Research FacilityManchesterUK
- Lancashire Teaching Hospitals NHS Foundation TrustPrestonUK
| | - Sally Spencer
- Lancaster UniversityFaculty of Health and MedicineBailriggLancasterLancashireUKLA1 4YD
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