Abstract:
BACKGROUND:Physical and psychological symptoms are the hallmark of patients' subjective perception of their illness. The purpose of this analysis was to determine if patients with COPD have distinctive symptom profiles and to examine the association of symptom profiles with systemic biomarkers of inflammation. METHODS:We conducted latent class analyses of three physical (dyspnea, fatigue, and pain) and two psychological symptoms (depression and anxiety) in 302 patients with moderate to severe COPD using baseline data from a longitudinal observational study of depression in COPD. Systemic inflammatory markers included IL1, IL8, IL10, IL12, IL13, INF, GM-CSF, TNF-α (levels >75thcentile was considered high); and CRP (levels >3 mg/L was considered high). Multinominal logistic regression models were used to examine the association between symptom classes and inflammation while adjusting for key socio-demographic and disease characteristics. RESULTS:We found that a 4-class model best fit the data: 1) low physical and psychological symptoms (26%, Low-Phys/Low-Psych), 2) low physical but moderate psychological symptoms (18%, Low-Phys/Mod Psych), 3) high physical but moderate psychological symptoms (25%, High-Phys/Mod Psych), and 4) high physical and psychological symptoms (30%, High-Phys/High Psych). Unadjusted analyses showed associations between symptom class with high levels of IL7, IL-8 (p ≤ .10) and CRP (p < .01). In the adjusted model, those with a high CRP level were less likely to be in the High-Phys/Mod-Psych class compared to the Low-Phys/Low-Psych (OR: 0.41, 95%CI 0.19, 0.90) and Low-Phys/Mod-Psych classes (OR: 0.35, 95%CI 0.16, 0.78); elevated CRP was associated with in increased odds of being in the High-Phys/High-Psych compared to the High-Phys/Mod-Psych class (OR: 2.22, 95%CI 1.08, 4.58). Younger age, having at least a college education, oxygen use and depression history were more prominent predictors of membership in the higher symptom classes. CONCLUSIONS:Patients with COPD can be classified into four distinct symptom classes based on five commonly co-occurring physical and psychological symptoms. Systemic biomarkers of inflammation were not associated with symptom class. Additional work to test the reliability of these symptom classes, their biological drivers and their validity for prognostication and tailoring therapy in larger and more diverse samples is needed. TRIAL REGISTRATION:Clinicaltrials.gov, NCT01074515 .
journal_name
BMC Pulm Medjournal_title
BMC pulmonary medicineauthors
Nguyen HQ,Herting JR,Pike KC,Gharib SA,Matute-Bello G,Borson S,Kohen R,Adams SG,Fan VSdoi
10.1186/s12890-016-0330-1subject
Has Abstractpub_date
2016-12-03 00:00:00pages
173issue
1issn
1471-2466pii
10.1186/s12890-016-0330-1journal_volume
16pub_type
杂志文章,多中心研究abstract:BACKGROUND:Convenient approaches for accurate biopsy are extremely important to the diagnosis of lung cancer. We aimed to systematically review the clinical updates and development trends of approaches for biopsy, i.e., CT-guided PTNB (Percutaneous Transthoracic Needle Biopsy), ENB (Electromagnetic Navigation Bronchosc...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-018-0713-6
更新日期:2018-09-03 00:00:00
abstract:BACKGROUND:To investigate if age, gender and smoking are associated with airway wall thickness (AWT) measured by high resolution computed tomography (HRCT) and if higher AWT is associated with lower levels of pulmonary function in healthy current- and never-smokers with a wide age range. METHODS:HRCT scans were perfor...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-017-0363-0
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND:Fine needle aspiration is an important tool for diagnosis and preoperative evaluation of solitary nodules of the lung. It provides a definitive diagnosis in most patients at low cost with minimal trauma. However, because of the nature of the study and the presentation of the cells in a more distorted and inc...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/1471-2466-3-2
更新日期:2003-09-08 00:00:00
abstract:BACKGROUND:Many studies have investigated whether pleural cholesterol levels can aid in diagnosis of pleural exudates, and the results have varied considerably. To gain a more reliable answer to this question, we meta-analyzed the literature on using pleural cholesterol or the ratio of cholesterol in pleural fluid to c...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1186/1471-2466-14-61
更新日期:2014-04-15 00:00:00
abstract:BACKGROUND:Air pollution has many negative health effects on the general population, especially children, subjects with underlying chronic disease and the elderly. The aims of this study were to evaluate the effects of traffic-related pollution on the exacerbation of asthma and development of respiratory infections in ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/1471-2466-14-130
更新日期:2014-08-07 00:00:00
abstract:BACKGROUND:Reduced lung function in patients with chronic obstructive pulmonary disease (COPD) is likely due to both environmental and genetic factors. We report here a targeted high-throughput DNA sequencing approach to identify new and previously known genetic variants in a set of candidate genes for COPD. METHODS:E...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-016-0309-y
更新日期:2016-11-11 00:00:00
abstract:BACKGROUND:Diagnosis of lower respiratory tract infections (LRTI) depends on the presence of clinical, radiological and microbiological findings. Endotracheal suction aspirate (ETSA) is the commonest respiratory sample sent for culture from intubated patients. Very few studies have compared quantitative and semi-quanti...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-020-01311-7
更新日期:2020-10-29 00:00:00
abstract:BACKGROUND:The importance of the lung parenchyma in the pathophysiology of asthma has previously been demonstrated. Considering that nitric oxide synthases (NOS) and arginases compete for the same substrate, it is worthwhile to elucidate the effects of complex NOS-arginase dysfunction in the pathophysiology of asthma, ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/1471-2466-13-52
更新日期:2013-08-15 00:00:00
abstract:BACKGROUND:Interleukin (IL)-3 amplifies inflammation. However, the effect of IL-3 in acute lung injury (ALI), an acute inflammatory disease, is unclear. The aim of this study was to test the hypothesis that IL-3 plays an important role in hyperoxia-induced ALI. METHODS:Hyperoxic ALI was induced in wild-type (WT) and I...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-018-0725-2
更新日期:2018-10-30 00:00:00
abstract::An amendment to this paper has been published and can be accessed via the original article. ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章,已发布勘误
doi:10.1186/s12890-020-1176-0
更新日期:2020-05-20 00:00:00
abstract:BACKGROUND:Telehealth has the potential to improve asthma management through regular monitoring of lung function and/or asthma symptoms by health professionals in conjunction with feedback to patients. Although the benefits of telehealth for improving asthma management have been extensively studied, the feasibility of ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1186/s12890-015-0082-3
更新日期:2015-07-31 00:00:00
abstract:BACKGROUND:Very few data exist on the management of community-acquired pneumonia (CAP) in patients admitted to hospitals in the Gulf region. The objectives of this study were to describe treatment patterns for CAP in 38 hospitals in five Gulf countries (United Arab Emirates, Kuwait, Bahrain, Oman, and Qatar) and to com...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-015-0108-x
更新日期:2015-09-30 00:00:00
abstract:BACKGROUND:Improvement in health-related quality of life (HRQL) has been suggested as an alternative treatment goal of non-tuberculous mycobacterial pulmonary disease (NTM-PD). This study was performed to elucidate the longitudinal changes in HRQL using St. George's Respiratory Questionnaire (SGRQ) among patients with ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-020-1165-3
更新日期:2020-05-07 00:00:00
abstract:BACKGROUND:The long-term prognosis of chronic cough and its determinants need to be clarified. METHODS:This is a prospective, observational cohort study. Eighty-nine unselected subjects with chronic (> 8 weeks' duration) cough were carefully investigated: Clinical examination, symptom questionnaire, Leicester Cough Qu...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-017-0496-1
更新日期:2017-11-21 00:00:00
abstract::Following publication of the original article [1], the authors flagged that the article had published with an error in 'Table 1'. ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章,已发布勘误
doi:10.1186/s12890-020-1051-z
更新日期:2020-01-21 00:00:00
abstract:BACKGROUND:Gene expression changes in the structural cells of the airways are thought to play a role in the development of asthma and airway hyperresponsiveness. This includes changes to smooth muscle contractile machinery and epithelial barrier integrity genes. We used a targeted gene expression arrays to identify cha...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-017-0545-9
更新日期:2017-12-11 00:00:00
abstract:BACKGROUND:Chronic obstructive pulmonary disease (COPD) is hallmarked by inflammatory processes and a progressive decline of lung function. YKL-40 is a potential biomarker of inflammation and mortality in patients suffering from inflammatory lung disease, but its prognostic value in patients with COPD remains unknown. ...
journal_title:BMC pulmonary medicine
pub_type: 临床试验,杂志文章
doi:10.1186/1471-2466-13-77
更新日期:2013-12-30 00:00:00
abstract:BACKGROUND:CHCHD2 was identified a novel cell migration-promoting gene, which could promote cell migration and altered cell adhesion when ectopically overexpressed in NIH3T3 fibroblasts, and it was identified as a protein necessary for OxPhos function as well. However, the clinic relevance of CHCHD2 expression in NSCLC...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-020-1079-0
更新日期:2020-02-13 00:00:00
abstract:BACKGROUND:The Birt-Hogg-Dubé (BHD) syndrome is a very rare autosomal dominant form of genodermatosis caused by germline mutations in the folliculin (FLCN) gene, which is mapped to the p11.2 region in chromosome 17. BHD commonly presents cutaneous fibrofolliculomas, pulmonary cysts, renal cell carcinoma, and recurrent ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章,评审
doi:10.1186/s12890-017-0383-9
更新日期:2017-02-21 00:00:00
abstract:BACKGROUND:The Global Lung Function Initiative 2012 (GLI) reference values are currently endorsed by several respiratory societies but evaluations of applicability for adults resident in European countries are lacking. The aim of this study was to evaluate if the GLI reference values are appropriate for an adult Caucas...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-015-0022-2
更新日期:2015-03-25 00:00:00
abstract:BACKGROUND:Malignant pleural mesothelioma (MPM) is marked by its difficult diagnosis and poor prognosis. Medical thoracoscopy (MT) is an effective and safe procedure for the diagnosis of exudative pleural effusions and many factors associated with poor prognosis of MPM. We conducted this study to investigate the value ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-018-0619-3
更新日期:2018-04-03 00:00:00
abstract:BACKGROUND:Compared to other pulmonary function tests, there is a lack of standardization regarding how a maximum voluntary ventilation (MVV) maneuver is performed. Specifically, little is known about the variation in breathing frequency (fR) and its potential impact on the accuracy of test results. This study examines...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-018-0650-4
更新日期:2018-05-24 00:00:00
abstract:BACKGROUND:Pulmonary surfactant D (SP-D) has important regulatory functions for innate immunity and has been implicated as a biomarker for chronic obstructive pulmonary disease (COPD). We hypothesized that COPD patients would have reduced bronchoalveolar lavage (BAL) fluid SP-D levels compared to healthy smoking and no...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/1471-2466-10-53
更新日期:2010-10-25 00:00:00
abstract:BACKGROUND:Pulmonary sequestration (PS) is a form of congenital pulmonary malformation that is generally diagnosed in childhood or adolescence and usually resected when diagnosed. We aim to identify the clinical presentation and course of patients diagnosed to have PS during adulthood. METHODS:Using a computer-assiste...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-018-0663-z
更新日期:2018-06-05 00:00:00
abstract:BACKGROUND:COVID-19 is a systemic viral infection which mainly targets the human respiratory system with many secondary clinical manifestations especially affecting the hematopoietic system and haemostasis. Few studies have highlighted the prognostic value of blood findings such as lymphopenia, neutrophil/lymphocyte ra...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-020-01389-z
更新日期:2021-01-22 00:00:00
abstract:BACKGROUND:Despite the recent increasing worldwide attention towards pulmonary hypertension (PH), its epidemiology remains poorly described in Africa. Accordingly, we performed a systematic review and meta-analysis of PH prevalence, incidence and etiologies in Africa. METHODS:We searched PubMed, EMBASE, African Journa...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1186/s12890-017-0549-5
更新日期:2017-12-08 00:00:00
abstract:BACKGROUND:In bronchiectasis patients, chronic Pseudomonas aeruginosa (PA) infection has been associated with worse health-related quality of life (HRQL), but little is known about Mycobacterium avium complex lung disease (MACLD) patients in this context. This study aimed to evaluate HRQL and investigate the impact of ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-017-0544-x
更新日期:2017-12-13 00:00:00
abstract:BACKGROUND:Patients with chronic obstructive pulmonary disease (COPD) have increased cardiovascular risk. Natriuretic peptides (NP) in other populations are useful in identifying cardiovascular disease, stratifying risk, and guiding therapy. METHODS:We performed a systematic literature review to examine NP in COPD, ut...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章,评审
doi:10.1186/s12890-016-0345-7
更新日期:2017-01-10 00:00:00
abstract:BACKGROUND:Each year, more than 13.7 million people became an active case of tuberculosis and more than 1.5 million cases of TB patient will die. The association between TB and malnutrition is bi-directional, TB leads the patient to malnutrition, and malnutrition increases the risk of developing active TB by 6 to 10 ti...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-019-0953-0
更新日期:2019-10-21 00:00:00
abstract:BACKGROUND:The epidermal growth factor receptor (EGFR) mutation status assessment has become increasingly important given the significant impact of tyrosine kinase inhibitors in lung cancer management. Our aim was to compare real life operational characteristics for three EGFR mutation assays - two targeted approaches ...
journal_title:BMC pulmonary medicine
pub_type: 杂志文章
doi:10.1186/s12890-016-0250-0
更新日期:2016-05-23 00:00:00