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McConville KM, Thibeault SL. Patient perceptions of the impact of inducible laryngeal obstruction on quality of life. PLoS One 2024; 19:e0307002. [PMID: 39012891 PMCID: PMC11251631 DOI: 10.1371/journal.pone.0307002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 06/26/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND Inducible laryngeal obstruction (ILO) accounts for or contributes to dyspnea in a noteworthy proportion of treatment seeking populations including those misdiagnosed with asthma. Despite increasing awareness of the disorder, literature exploring patient experience is limited. The aim of this work is to report patient perspectives on ILO and the way in which it impacts quality of life. METHODS This qualitative study utilized methods detailed in the literature on grounded theory and phenomenological research to analyze interviews collected from participants diagnosed with ILO. Interviews were conducted, audio recorded, and transcribed. Transcriptions underwent content-analysis using Burnard's 14 step method [15], which included review of content codes across multiple raters until consensus regarding analyses was reached. RESULTS Twenty-six participants were included in the study. Most participants were female (92%). Ages ranged from 18-72 with a mean age of 45 for female participants and 37 for male participants. Without specific prompting to do so, all participants offered descriptions of the specific symptoms they experienced and the triggers for their symptoms. In the content analysis process, "descriptions of symptoms and triggers" was thus labeled a theme that was present in all interviews. Seven additional themes were shared consistently and judged to encapsulate the interview material. These themes were: 2) diagnosis and treatment, 3) emotional impact of ILO, 4) perception of health and prognosis, 5) ameliorating factors, 6) influence of ILO on lifestyle, 7) the physical impact of ILO, and 8), social consequences of ILO. In addition, 54 subthemes were identified. CONCLUSIONS Patients appear to place particular emphasis on the emotional and psychosocial consequences of ILO as well as factors that ameliorate the condition. As such, future efforts to treat ILO and to collect outcomes measures should account for these aspects of the patient experience.
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Affiliation(s)
- Katherine M. McConville
- Department of Speech-Language Pathology, Michigan Medicine, The University of Michigan, Ann Arbor, Michigan, United States of America
| | - Susan L. Thibeault
- Division of Otolaryngology—Head and Neck Surgery, School of Medicine and Public Health, University of WisconsinMadison, Madison, Wisconsin, United States of America
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Kupeli A, Bulut E, Unver E, Danisan G. The relationship between vertebral deformities and thoracic arthropathy with back pain in Chronic Obstructive Pulmonary Disease. Int J Clin Pract 2021; 75:e14953. [PMID: 34610196 DOI: 10.1111/ijcp.14953] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 08/13/2021] [Accepted: 10/02/2021] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES The aim of the study was to investigate the relationship between back pain and thoracic vertebral deformities and arthropathy in patients with COPD who underwent thorax CT scans to screen for lung nodules and cancer. MATERIALS AND METHODS The data of patients who underwent thoracic CT and pulmonary function tests (PFTs) between July 2019 and February 2020 were retrospectively reviewed. The patients were divided into two groups: the COPD (n = 64) and control groups (n = 101), according to the PFT results. The CT images were evaluated for vertebral deformities, osteoporosis and thoracic vertebral joint arthropathy, and the Spinal Deformity Index (SDI) was calculated. RESULTS Back pain was detected in 43.7% of the COPD patients and 20.9% of the controls. The patients with COPD had significantly higher rates of costotransverse, intervertebral, facet joint arthropathy, and osteoporosis than did the control group (P < .001). The OR analyses showed that the presence of a vertebral deformity (OR 4.42, 95% CI 2.26 - 8.63, P < .001), of facet joint arthropathy (OR 3.6, 95% CI 2.83-4.58, P < .001), and of costotransverse arthropathy (OR 2.20, 95% CI 1.47-2.77, P < .001) were associated with the presence of back pain. Although a strong positive correlation was found between the SDI and pain score, a moderate negative correlation was found between the FEV1% values and pain score. CONCLUSIONS Back pain was present in patients with COPD and was related to vertebral deformities and facet and costotransverse joint arthropathy. Additional studies are required to clarify the relationships of back pain with musculoskeletal system diseases, including cervical and lumbar spine arthropathy and vertebral deformities.
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Affiliation(s)
- Ali Kupeli
- Department of Radiology, Faculty of Medicine, Trabzon Kanuni Training and Research Hospital, Trabzon, Turkey
| | - Eser Bulut
- Department of Radiology, Faculty of Medicine, Trabzon Kanuni Training and Research Hospital, Trabzon, Turkey
| | - Ethem Unver
- Department of Chest Diseases, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Gurkan Danisan
- Department of Radiology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
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Zacarias LC, Câmara KJDC, Alves BM, Morano MTAP, Viana CMS, Mont'Alverne DGB, Castro SS, Leite CF. Validation of the World Health Organization Disability Assessment Schedule (WHODAS 2.0) for individuals with COPD. Disabil Rehabil 2021; 44:5663-5668. [PMID: 34261374 DOI: 10.1080/09638288.2021.1948117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE COPD fits the profile of disabling health conditions. This study aims to validate the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) in individuals with COPD. MATERIAL AND METHODS 100 participants with COPD responded to the Brazilian 36-item version of the WHODAS 2.0, as well as the Saint George's Respiratory Questionnaire (SGRQ), and the COPD Assessment Test (CAT). Spirometric data was extracted from medical records. RESULTS The internal consistency analysis showed coefficients for all WHODAS 2.0 domains with a strong correlation (0.70-0.85) except for Life activities, which had a moderate correlation (coefficient = 0.60). In the construct analysis, the coefficients for the WHODAS and SGRQ domains presented a consistent correlation among them, varying from 0.40 to 0.69. No correlation was evidenced among the WHODAS domains and the spirometric data, highlighting that linear measures fail when associated with the functioning of an individual with COPD. Discriminative analysis revealed a capacity for the WHODAS 2.0 to distinguish among COPD different levels of clinical impact obtained from CAT excluding the Getting along domain. CONCLUSION The WHODAS 2.0 shows as a valid instrument that can sensibly assess functioning differences related to the clinical impact classification level in subjects with COPD.IMPLICATIONS FOR REHABILITATIONWHODAS 2.0 is a valid tool to assess functioning in subjects with COPD.WHODAS 2.0 is sensitive to functioning differences related to classification level and to clinical impact in individuals with COPD.As a Patient-Reported Outcome Measure (PROM), WHODAS 2.0 offers the opportunity to develop clinical patient-centered interventions, improving the health care.As a low-cost, easy-to-use tool, WHODAS can be a useful resource in the process of clinical assessment of patient functioning.
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Affiliation(s)
- Laíla Cândida Zacarias
- Graduate Program in Cardiovascular Sciences, Federal University of Ceara, Fortaleza, Brazil
| | | | | | | | | | | | - Shamyr Sulyvan Castro
- Master Program in Physiotherapy and Functioning, Federal University of Ceara, Fortaleza, Brazil
| | - Camila Ferreira Leite
- Graduate Program in Cardiovascular Sciences, Federal University of Ceara, Fortaleza, Brazil.,Master Program in Physiotherapy and Functioning, Federal University of Ceara, Fortaleza, Brazil
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4
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Reaves C, Angosta AD. The relaxation response: Influence on psychological and physiological responses in patients with COPD. Appl Nurs Res 2021; 57:151351. [DOI: 10.1016/j.apnr.2020.151351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/10/2020] [Accepted: 08/23/2020] [Indexed: 01/09/2023]
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Peepratoom B, Low G, Malathum P, Chai-Aroon T, Chuchottaworn C, Arpanantikul M. A structural equation model of health-related quality of life among Thai men with chronic obstructive pulmonary disease. J Clin Nurs 2020; 29:2638-2651. [PMID: 32279357 DOI: 10.1111/jocn.15286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/31/2020] [Accepted: 03/29/2020] [Indexed: 01/07/2023]
Abstract
AIM AND OBJECTIVES To identify physiological, psychological and socioenvironmental factors that affect the health-related quality of life of Thai men living with chronic obstructive pulmonary disease. The vast majority of Thai persons living with chronic obstructive pulmonary disease are men. BACKGROUND Little is known about the health-related quality of life of Thai people living with chronic obstructive pulmonary disease or about the physiological and psychosocial factors that most affect it. Applying a prevailing theoretical model of health-related quality of life, we explored how physiological, psychological and socioenvironmental factors simultaneously affect the health-related quality of life of Thai men with chronic obstructive pulmonary disease. DESIGN A cross-sectional study design was used, together with the STROBE checklist. METHODS In this study, 290 Thai male outpatients at a chronic obstructive pulmonary disease specialist clinic near Bangkok were recruited using purposive sampling. The participants completed the Satisfaction With Life Scale, the St. George Respiratory Questionnaire, the Center for Epidemiologic Studies Depression Scale, the Short Form Health Survey Version 2, the chronic obstructive pulmonary disease Self-Efficacy Scale and the Social Support Questionnaire. A structural equation model was used to examine the relationships between the assessed variables. RESULTS Biological function (FEV-1, chronic obstructive pulmonary disease exacerbations), symptoms (chronic obstructive pulmonary disease and depression), functional status, general health perceptions and individual characteristics (age and self-efficacy to control dyspnoea) accounted for 56.9% of the variance in health-related quality of life. CONCLUSIONS Symptoms of chronic obstructive pulmonary disease and depression were the main factors with statistically significant direct and indirect effects on the health-related quality of life of the Thai men in this study. The effects of both symptoms included an indirect effect on health-related quality of life through functional status and general health perceptions. RELEVANCE TO CLINICAL PRACTICE The study findings may help nurses to better understand factors affecting health-related quality of life among men with chronic obstructive pulmonary disease. Preventing or minimising symptom exacerbations could be important in nursing practice. Cognitive-behavioural interventions addressing chronic obstructive pulmonary disease symptom management, depression screening and smoking cessation may improve health-related quality of life among Thai men with chronic obstructive pulmonary disease.
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Affiliation(s)
- Bangorn Peepratoom
- Ramathibodi School of Nursing, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Gail Low
- Faculty of Nursing, University of Alberta, Edmonton, AB, Canada
| | - Porntip Malathum
- Ramathibodi School of Nursing, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Teeradej Chai-Aroon
- Faculty of Humanistic and Social Science, Mahidol University, Salaya, Nakhon Pathom, Thailand
| | | | - Manee Arpanantikul
- Ramathibodi School of Nursing, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Sánchez-Martínez MP, Bernabeu-Mora R, García-Vidal JA, Martín San Agustín R, Gacto-Sánchez M, Medina-Mirapeix F. [Structure and metric properties of a questionnaire to measure disability in mobility activities in patients with chronic obstructive pulmonary disease (DIAMO-COPD questionnaire)]. Rehabilitacion (Madr) 2019; 53:232-239. [PMID: 31813420 DOI: 10.1016/j.rh.2019.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 02/01/2019] [Accepted: 07/02/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The aim of this study was to adapt a disability questionnaire in mobility activities (DIAMO-EPOC) incorporating scales based on the conceptual framework of the International Classification of Functioning, Disability and Health, and to examine its structure, reliability and validity in a cohort of patients with COPD. METHODS A total of 137 patients with stable COPD were recruited. Two scales of 4 items each were designed and their structure was verified by exploratory factor analysis and multitrait scaling analysis. Additionally, reliability indices (internal consistency and test-retest) were calculated. Construct validity was analysed by known groups and convergence-divergence. RESULTS The questionnaire had 2 scales, with 4 items each, corresponding to the domains of the International Classification of Functioning, Disability and Health "change and maintain the position of the body" and "walk and move". The reliability and internal consistency of the scales were acceptable and the test-retest was excellent with an ICC of 0.86 and 0.94, respectively. The scales showed a moderate association with dyspnoea, health status and muscle strength and a different score among participants with different physical performance in the Short Physical Performance Battery. CONCLUSIONS The 2 scales of the DIAMO-EPOC questionnaire are one-dimensional and have a solid internal consistency, test-retest stability and validity, allowing the identification of specific areas of limited mobility in patients with COPD.
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Affiliation(s)
- M P Sánchez-Martínez
- Departamento de Fisioterapia, Facultad de Medicina, Universidad de Murcia, Murcia, España
| | - R Bernabeu-Mora
- Departamento de Fisioterapia, Facultad de Medicina, Universidad de Murcia, Murcia, España; Sección de Neumología, Hospital General Universitario Morales Meseguer, Murcia, España.
| | - J A García-Vidal
- Departamento de Fisioterapia, Facultad de Medicina, Universidad de Murcia, Murcia, España
| | | | - M Gacto-Sánchez
- Departamento de Fisioterapia, Universidad de Girona, Girona, España
| | - F Medina-Mirapeix
- Departamento de Fisioterapia, Facultad de Medicina, Universidad de Murcia, Murcia, España
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Emilija N, Aleksandar N, Ruža S, Tijana B, Veselin M, Jelena M. Model for Developing a Health-Related Quality of Life Questionnaire for Chronic Obstructive Pulmonary Disease. Can Respir J 2018; 2018:6450962. [PMID: 29854031 PMCID: PMC5954916 DOI: 10.1155/2018/6450962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 03/20/2018] [Indexed: 11/17/2022] Open
Abstract
Introduction The St. George's Respiratory Questionnaire (SGRQ), Modified Medical Research Council (mMRC) Dyspnea Scale, Hospital Anxiety and Depression Scale (HADS), and general health questionnaire (SF-36) are widely used for chronic respiratory diseases such as chronic obstructive pulmonary disease (COPD). Aim We examined the reliability and validity of a modified questionnaire (MQ) to create a model for assessing the health-related quality of life (HRQOL) in COPD. Method In total, 132 COPD patients completed the MQ. Lung function, smoking index, and exacerbation frequency were measured. Cronbach's α coefficient of correlation, standard deviation, and multifactorial nonlinear regression analysis were used to verify the internal validity of the MQ and to develop the mathematical model. Results Female (63) patients had lesser airway obstruction than, and exacerbation frequency similar to that of, male patients. Exacerbation frequency significantly correlated with spirometry parameters in female patients. The MQ total score achieved high internal consistency (Cronbach's α = 0.89) and showed significant correlations with exacerbation frequency, smoking habit, and spirometry parameters in male patients (p < 0.005). Conclusion The HRQOL questionnaire was shown to be a good indicator of the health status of COPD patients. The mathematical model easily and precisely confirmed the score of HRQOL questionnaire.
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Affiliation(s)
- Nikolić Emilija
- Faculty of Medicine, University of Montenegro, 81000 Podgorica, Montenegro
| | | | - Stević Ruža
- Faculty of Medicine, University of Belgarde, 11000 Belgrade, Serbia
| | - Brandmajer Tijana
- Faculty of Medicine, University of Montenegro, 81000 Podgorica, Montenegro
| | - Mićanović Veselin
- Faculty of Philosophy, University of Montenegro, 81000 Podgorica, Montenegro
| | - Mašnić Jelena
- Faculty of Philosophy, University of Montenegro, 81000 Podgorica, Montenegro
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Gruenberger JB, Vietri J, Keininger DL, Mahler DA. Greater dyspnea is associated with lower health-related quality of life among European patients with COPD. Int J Chron Obstruct Pulmon Dis 2017; 12:937-944. [PMID: 28360517 PMCID: PMC5365328 DOI: 10.2147/copd.s123744] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Dyspnea is a defining symptom in the classification and treatment of chronic obstructive pulmonary disease (COPD). However, the degree of variation in burden among symptomatic COPD patients and the possible correlates of burden remain unclear. This study was conducted to characterize patients in Europe currently being treated for COPD according to the level of dyspnea in terms of sociodemographics, health-related quality of life, work productivity impairment, and health care resource use assessed by patient reports. METHODS Data were derived from the 5-EU 2013 National Health and Wellness Survey (N=62,000). Respondents aged ≥40 years who reported currently using a prescription for COPD were grouped according to their level of dyspnea as per the Global Initiative for Chronic Obstructive Lung Disease guidelines and compared on health status (revised Short Form 36 [SF-36]v2), work impairment (Work Productivity and Activity Impairment questionnaire), and number of health care visits in the past 6 months using generalized linear models with appropriate distributions and link functions. RESULTS Of the 768 respondents who met the inclusion criteria, 245 (32%) were considered to have higher dyspnea (equivalent to modified Medical Research Council score ≥2). Higher dyspnea was associated with decrements ranging from 3.9 to 8.2 points in all eight domains of the SF-36 health profile after adjustment for sociodemographics, general health characteristics, and length of COPD diagnosis; mental component summary scores and Short Form-6D health utility scores were lower by 3.5 and 0.06 points, respectively. Adjusted mean activity impairment (55% vs 37%, P<0.001) and number of emergency room visits (0.61 vs 0.40, P=0.030) were higher in patients with greater dyspnea. CONCLUSION Many European patients with COPD continue to experience dyspnea despite treatment and at levels associated with notable impairments in the patients' ability to function across a multitude of domains. These patients may benefit from more intense treatment of their symptoms.
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Affiliation(s)
| | | | - Dorothy L Keininger
- Health Economics and Outcomes Research, Novartis Pharma AG, Basel, Basel-Stadt, Switzerland
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Dignani L, Toccaceli A, Lucertini C, Petrucci C, Lancia L. Sleep and Quality of Life in People With COPD. Clin Nurs Res 2015; 25:432-47. [DOI: 10.1177/1054773815588515] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Sleep disorders are very common in patients with chronic obstructive pulmonary disease (COPD). However, it is not clear how sleep disorders and quality of life (QoL) affect each other in the different stages of disease progression. This descriptive-correlational study investigated the relationship between QoL, quality of sleep, and degree of disease progression in 102 outpatients with COPD. The results showed that the QoL in patients with COPD is compromised and worsens with disease progression, and the quality of sleep is significantly associated with QoL and worsened as the disease progressed. The early identification of a risk of alteration of the quality of sleep, especially in nursing care, could facilitate a preventive approach for COPD patients that could positively affect their QoL.
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Santos KD, Karloh M, Araujo CLPD, D’Aquino AB, Mayer AF. Relationship between the functional status constructs and quality of life in COPD. FISIOTERAPIA EM MOVIMENTO 2014. [DOI: 10.1590/0103-5150.027.003.ao06] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Introduction Functional status is an important component of health related quality of life (QOL) in patients with chronic obstructive pulmonary disease (COPD). However there is a lack of studies aiming to evaluate the association between QOL and the different methods for assessing patient´s limitation to perform ADL. Objectives To investigate the association between QOL and functional status, measured by four different instruments: London Chest Activity of Daily Living scale (LCADL), six-minute walking test (6MWT), Glittre ADL-test (TGlittre) and assessment of physical activities in daily living (PADL). Methods Twenty-three patients with COPD, GOLD 2 to 4, were submitted to the following evaluations: spirometry, the Saint George Respiratory Questionnaire (SGRQ), LCADL, 6MWT, TGlittre and assessment of PADL. Pearson or Spearman correlation coefficients were used to verify the association between the variables. Results It was observed correlation between all domains of the SGRQ and the 6MWT, between TGlittre and ‘leisure’ domain of LCADL; and between the domain ‘activity’ of the SGRQ with the total score of LCADL (r = 0.53), LCADL% (r = 0.54), ‘self care’ (r = 0.49) and ‘leisure’ (r = 0.82). The number of steps correlated with the SGRQ (r = -0.59) and with ‘activity’ (r = -0.70) and ‘impact’ (r = -0.52) domains. The standing time correlated with the domain ‘activitiy’ (r = -0.47) of the SGRQ (p < 0.05 for all). Conclusions Both functional performance and capacity are able to reflect the impact that ADL limitation has on QOL in patients with COPD
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Dignani L, Toccaceli A, Guarinoni MG, Petrucci C, Lancia L. Quality of Life in Chronic Obstructive Pulmonary Disease: An Evolutionary Concept Analysis. Nurs Forum 2014; 50:201-13. [PMID: 25155165 DOI: 10.1111/nuf.12110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To explore the concept of quality of life (QoL) of people with chronic obstructive pulmonary disease (COPD) in the nursing context. BACKGROUND The issue of QoL takes on a leading role in the COPD field because it is an incurable pathology. Despite its relevance, this concept is quite ambiguous, and there is no consensus of opinion in the literature regarding its definition. DESIGN AND METHODS Rodgers' method of evolutionary concept analysis was employed to delineate and clarify the concept of QoL in COPD. An electronic review was made on scientific databases from 2008 to 2013. The 75 selected articles were analyzed in order to highlight the main themes related to QoL concept. RESULTS The QoL appears as a dynamic and multidimensional concept that evolves with the progression of the pathology and the impairment of health status. It has both subjective and objective characteristics, intrinsic and extrinsic elements. CONCLUSIONS This analysis provides an overview of the QoL concept related to COPD patients that is useful as a guide to research into nursing care and for clinical practice.
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Affiliation(s)
| | - Andrea Toccaceli
- Department of Health, Life and Environmental Sciences, Nursing Science Doctorate School, University of L'Aquila, L'Aquila, Italy
| | | | - Cristina Petrucci
- Department of Health, Life and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Loreto Lancia
- Department of Health, Life and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
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Effect of thyroid function on COPD exacerbation frequency: a preliminary study. Multidiscip Respir Med 2013; 8:64. [PMID: 24079533 PMCID: PMC3845712 DOI: 10.1186/2049-6958-8-64] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 07/12/2013] [Indexed: 12/04/2022] Open
Abstract
Background Frequent exacerbations of chronic obstructive pulmonary disease (COPD) have negative effects on quality of life and survival. Thus, factors related to exacerbations should be determined. We aimed to evaluate the effects of thyroid function on quality of life and exacerbation frequency in COPD patients. Methods The study population (n = 128) was divided into 3 groups (Group 1: COPD patients with hypothyroidism (n = 44); Group 2: COPD patients with normal thyroid function tests (n = 44); Group 3: Healthy subjects (n = 40)). Pulmonary function tests, maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP) measurements were performed. Quality of life questionnaire (Short Form 36, SF-36) was carried out. Patients were followed up for one year and number of exacerbations was recorded. Results FVC, FEV1/FVC, and FEF 25–75% measurements were statistically different between group 1 and 2 (p = 0.041, p = 0.001, p = 0.009 respectively). Although MEP values were significantly different between group 1 and 2 (p = 0.006), there was no significant difference in MIP values between groups (p = 0.77). Quality of life scores in group 1 and 2 were significantly lower than control group. Exacerbation frequency was significantly higher in group 1 than in group 2 (p = 0.017). TSH values and exacerbation frequency had positive correlation (p < 0.0001; r = 0.82). Conclusions The results of the present study suggest that thyroid function has an effect in exacerbation frequency of COPD. Decrease in exacerbation numbers with early detection of impairment in thyroid function will have positive contribution on quality of life in COPD patients.
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