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Ni H, Wei Y, Yang L, Wang Q. An increased risk of pulmonary hypertension in patients with combined pulmonary fibrosis and emphysema: a meta-analysis. BMC Pulm Med 2023; 23:221. [PMID: 37344866 DOI: 10.1186/s12890-023-02425-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 04/07/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND AND AIM Pulmonary hypertension (PH) is a common complication of combined pulmonary fibrosis and emphysema (CPFE). Whether the incidence of PH is increased in CPFE compared with pure pulmonary fibrosis or emphysema remains unclear. This meta-analysis aimed to evaluate the risk of PH in patients with CPFE compared to those with IPF or COPD/emphysema. METHODS We searched the PubMed, Embase, Cochrane Library, and CNKI databases for relevant studies focusing on the incidence of PH in patients with CPFE and IPF or emphysema. Pooled odds ratios (ORs) and standard mean differences (SMD) with 95% confidence intervals (95% CIs) were used to evaluate the differences in the clinical characteristics presence and severity of PH between patients with CPFE, IPF, or emphysema. The survival impact of PH in patients with CPFE was assessed using hazard ratios (HRs). RESULTS A total of 13 eligible studies were included in the meta-analysis, involving 560, 720, and 316 patients with CPFE, IPF, and emphysema, respectively. Patients with CPFE had an increased PH risk with a higher frequency of pulmonary hypertension and higher estimated systolic pulmonary artery pressure (esPAP), compared with those with IPF (OR: 2.66; 95% CI: 1.55-4.57; P < 0.01; SMD: 0.86; 95% CI: 0.52-1.19; P < 0.01) or emphysema (OR: 3.19; 95% CI: 1.42-7.14; P < 0.01; SMD: 0.73; 95% CI: 0.50-0.96; P < 0.01). In addition, the patients with CPFE combined with PH had a poor prognosis than patients with CPFE without PH (HR: 6.16; 95% CI: 2.53-15.03; P < 0.01). CONCLUSIONS Our meta-analysis showed that patients with CPFE were associated with a significantly higher risk of PH compared with those with IPF or emphysema alone. The presence of PH was a poor predictor of mortality.
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Affiliation(s)
- Hangqi Ni
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, People's Republic of China
| | - Yuying Wei
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, People's Republic of China
| | - Liuqing Yang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, People's Republic of China
| | - Qing Wang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, People's Republic of China.
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Bernardinello N, Cocconcelli E, Boscolo A, Castelli G, Sella N, Giraudo C, Zanatta E, Rea F, Saetta M, Navalesi P, Spagnolo P, Balestro E. Prevalence of diaphragm dysfunction in patients with interstitial lung disease (ILD): The role of diaphragmatic ultrasound. Respir Med 2023:107293. [PMID: 37271302 DOI: 10.1016/j.rmed.2023.107293] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 03/24/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND Diaphragm ultrasound (DUS) has been extensively used in critically ill patients while data on outpatients with interstitial lung disease (ILD) are limited. We hypothesized that diaphragm function, assessed by ultrasound, could be impaired in patients with ILD, considering both Idiopathic Pulmonary Fibrosis (IPF) and Connective Tissue Disease (CTD-ILD), compared to healthy subjects. Moreover, this impairment could impact clinical and functional parameters. METHODS All consecutive CTD-ILD and IPF patients followed in our center (March-October 2020) were screened. Diaphragm displacement (DD), inspiratory thickness (Ti), expiratory thickness (Te), thickening fraction (TF), and respiratory functional parameters were collected. The prevalence of diaphragmatic dysfunction (TF <30%) was then recorded. RESULTS Eighty-two consecutive patients (41 CTD-ILD, 41 IPF) and 15 age- and sex-matched controls were enrolled. In the overall population, 24 out of 82 (29%) presented diaphragmatic dysfunction. In CTD-ILD, DD and Ti were lower as compared to IPF (p = 0.021 and p = 0.036, respectively); while diaphragmatic dysfunction was more prevalent compared to controls (37% vs 7%, p = 0.043). TF positively correlated to patients' functional parameters in the CTD-ILD group (FVC%pred: p = 0.003; r = 0.45), while not in the IPF group. Diaphragmatic dysfunction was associated with moderate/severe dyspnea in both CTD-ILD and IPF (p = 0.021). CONCLUSION The prevalence of diaphragmatic dysfunction was 29% in patients with ILD and was associated with moderate/severe dyspnea. CTD-ILD presented lower DD compared with IPF and a higher prevalence of diaphragmatic dysfunction (TF<30%) compared with controls. TF was associated with lung function only in CTD-ILD patients, suggesting its potential role in the comprehensive patient assessment.
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Affiliation(s)
- Nicol Bernardinello
- Respiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences, And Public Health, University of Padova and Padova City Hospital, Padova, Italy
| | - Elisabetta Cocconcelli
- Respiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences, And Public Health, University of Padova and Padova City Hospital, Padova, Italy
| | - Annalisa Boscolo
- Institute of Anesthesia and Intensive Care, Padua University Hospital, Italy; Department of Medicine (DIMED), University of Padua, Italy
| | - Gioele Castelli
- Respiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences, And Public Health, University of Padova and Padova City Hospital, Padova, Italy
| | - Nicolò Sella
- Institute of Anesthesia and Intensive Care, Padua University Hospital, Italy
| | - Chiara Giraudo
- Department of Medicine (DIMED), University of Padua, Italy
| | - Elisabetta Zanatta
- Rheumatology Division, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Federico Rea
- Thoracic Surgery and Lung Transplant Unit, Department of Cardiac, Thoracic, Vascular Sciences, and Public Health, University of Padua, Padua, Italy
| | - Marina Saetta
- Respiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences, And Public Health, University of Padova and Padova City Hospital, Padova, Italy
| | - Paolo Navalesi
- Institute of Anesthesia and Intensive Care, Padua University Hospital, Italy; Department of Medicine (DIMED), University of Padua, Italy
| | - Paolo Spagnolo
- Respiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences, And Public Health, University of Padova and Padova City Hospital, Padova, Italy
| | - Elisabetta Balestro
- Respiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences, And Public Health, University of Padova and Padova City Hospital, Padova, Italy.
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Kim T, Huh S, Chung JH, Kim YS, Yun RY, Park O, Lee SE. Clinical values of diaphragmatic movement in patients with chronic obstructive pulmonary disease. BMC Pulm Med 2023; 23:33. [PMID: 36703157 PMCID: PMC9881315 DOI: 10.1186/s12890-022-02220-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 11/02/2022] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The limitation of activity due to dyspnea in chronic obstructive pulmonary disease (COPD) patients is affected by diaphragmatic dysfunction and reduced lung function. This study aimed to analyze the association between diaphragm function variables and forced expiratory volume in the first second (FEV1) and to estimate the clinical significance of diaphragm function in the correlation between COPD severity and lung function. METHODS This prospective, single-center, cross-sectional observational study enrolled 60 COPD patients in a respiratory outpatient clinic. Data for baseline characteristics and the dyspnea scale were collected. Participants underwent a pulmonary function test (PFT), a 6-minute walk test (6MWT), and diaphragm function by ultrasonography. RESULTS The right excursion at forced breathing showed the most significant correlation with FEV1 (r = 0.370, p = 0.004). The cutoff value was 6.7 cm of the right diaphragmatic excursion at forced breathing to identify the FEV1 above 50% group. In the group with a right diaphragmatic excursion at forced breathing < 6.7 cm, modified Medical Research Council (mMRC), St. George's Respiratory Questionnaire and the total distance of 6MWT showed no difference between groups with FEV1 under and above 50% (p > 0.05). In the group with ≥ 6.7 cm, mMRC and the total distance of 6MWT showed a significant difference between FEV1 under and above 50% (p = 0.014, 456.7 ± 69.7 m vs. 513.9 ± 60.3 m, p = 0.018, respectively). CONCLUSION The right diaphragmatic forced excursion was closely related to FEV1, and analysis according to the right diaphragmatic forced excursion-based cut-off value showed a significant difference between both groups. When the diaphragm function was maintained, there was a lot of difference in the 6MWT's factors according to the FEV1 value. Our data suggest that diaphragmatic function should be performed when interpreting PFT.
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Affiliation(s)
- Taehwa Kim
- grid.412591.a0000 0004 0442 9883Division of Respiratory, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University Yangsan Hospital and Pusan National University School of Medicine, Geumo-ro 20, Beomeo-ri, Yangsan-si, Gyeongsangnam-do 50612 Republic of Korea ,grid.412591.a0000 0004 0442 9883BioMedical Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Sungchul Huh
- grid.412591.a0000 0004 0442 9883Department of Rehabilitation Medicine, Rehabilitation Hospital, Pusan National University Yangsan, Yangsan, South Korea
| | - Jae Heun Chung
- grid.412591.a0000 0004 0442 9883Division of Respiratory, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University Yangsan Hospital and Pusan National University School of Medicine, Geumo-ro 20, Beomeo-ri, Yangsan-si, Gyeongsangnam-do 50612 Republic of Korea ,grid.412591.a0000 0004 0442 9883BioMedical Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Yun Seong Kim
- grid.412591.a0000 0004 0442 9883Division of Respiratory, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University Yangsan Hospital and Pusan National University School of Medicine, Geumo-ro 20, Beomeo-ri, Yangsan-si, Gyeongsangnam-do 50612 Republic of Korea ,grid.412591.a0000 0004 0442 9883BioMedical Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Ra Yu Yun
- grid.412591.a0000 0004 0442 9883Department of Rehabilitation Medicine, Rehabilitation Hospital, Pusan National University Yangsan, Yangsan, South Korea ,grid.262229.f0000 0001 0719 8572Pusan National University School of Medicine, Yangsan, South Korea
| | - Onyu Park
- grid.412591.a0000 0004 0442 9883College of Nursing, Pusan National University, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Seung Eun Lee
- grid.412591.a0000 0004 0442 9883Division of Respiratory, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University Yangsan Hospital and Pusan National University School of Medicine, Geumo-ro 20, Beomeo-ri, Yangsan-si, Gyeongsangnam-do 50612 Republic of Korea ,grid.412591.a0000 0004 0442 9883BioMedical Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea
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Hua-Rong Z, Liang C, Rong L, Yi-Fan T, Dou-Zi S, Yue C, Zu-Lin L. Ultrasonographic evaluation of diaphragm function in patients with chronic obstructive pulmonary disease: A systematic review and meta-analysis. Medicine (Baltimore) 2022; 101:e32560. [PMID: 36595865 PMCID: PMC9794219 DOI: 10.1097/md.0000000000032560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Some studies have reported using ultrasonic evaluations to assess diaphragm function in patients with chronic obstructive pulmonary disease (COPD). However, they have limitations and thus cannot provide strong evidence to support ultrasound evaluations for diaphragm function and dysfunction severity assessments in this patient population. Additionally, quantitative studies on the relationship between ultrasound evaluations and diaphragm function do not exist. Therefore, we performed a systematic review and meta-analysis to explore the usefulness of ultrasonography for evaluating diaphragm function in patients with COPD. METHODS The Cochrane Library, PubMed, Embase, Web of Science, Chinese Biomedical Literature Database, Wanfang Data, China National Knowledge Network, and Chinese Scientific Journal Database (i.e., VIP) databases were searched for literature about ultrasonic evaluations of diaphragm function in patients with COPD for systematic review. We extracted patient demographic, diaphragm mobility, diaphragm thickness, diaphragm thickening score, and other related parameter data using RevMan 5.3 software for the meta-analysis. RESULTS We included 13 articles in the systematic review, 8 of which (494 participants) were included in the meta-analysis. The degree of diaphragm offset in patients with COPD was significantly lower than that in healthy controls (weighted mean difference [WMD] = -1.34; 95% confidence interval [CI]: -2.15, 0.53; P < .05). The diaphragm deviation was lower in the severe COPD group than in the mild-to-moderate COPD group (WMD = 0.50; 95% CI: -0.01, 1.01; P = .06), but the difference was not significant. CONCLUSION Ultrasonography effectively evaluates diaphragm function in patients with COPD. The diaphragm offset can be used as an auxiliary diagnostic index for COPD, which is also related to disease severity.
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Affiliation(s)
- Zeng Hua-Rong
- The First College of Clinical Medical Science, China Three Gorges University & Ultrasound Department of Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Chen Liang
- Yichang Maternal and Child Health Hospital, Yichang, Hubei, China
| | - Liu Rong
- The First College of Clinical Medical Science, China Three Gorges University & Ultrasound Department of Yichang Central People’s Hospital, Yichang, Hubei, China
- * Correspondence: Liu Rong, The First College of Clinical Medical Science, China Three Gorges University & Ultrasound Department of Yichang Central People’s Hospital, Yichang, Hubei 443000, China (e-mail: )
| | - Tu Yi-Fan
- The First College of Clinical Medical Science, China Three Gorges University & Ultrasound Department of Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Shi Dou-Zi
- The First College of Clinical Medical Science, China Three Gorges University & Ultrasound Department of Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Chen Yue
- The First College of Clinical Medical Science, China Three Gorges University & Ultrasound Department of Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Liu Zu-Lin
- The First College of Clinical Medical Science, China Three Gorges University & Ultrasound Department of Yichang Central People’s Hospital, Yichang, Hubei, China
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Lawrence A, Lovin D, Mohanka MR, Joerns J, Bollineni S, Kaza V, Torres F, Murala J, Peltz M, Wait MA, Banga A. Diaphragmatic plication among lung transplant patients: A single-center experience. Clin Transplant 2022; 36:e14683. [PMID: 35445440 DOI: 10.1111/ctr.14683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 03/25/2022] [Accepted: 04/04/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND There is lack of data reporting outcomes among patients needing diaphragmatic plication (DP) during or after lung transplantation (LT). We sought to assess the association of DP with post-transplant spirometry among other outcomes. METHODS We included all patients who underwent LT between 2012&2016 (n = 324, mean age 56.3±13.4 years; M:F 198:126). We compared early and late outcomes based on the need for DP. RESULTS The frequency of diaphragm dysfunction (DD)on pre-transplant fluoroscopy was 52.2%. A total of 38 DP procedures were performed among 37 patients (11.4% of LT patients). DP was done for anatomic (sizing or spacing issues) or functional indications (symptomatic DD). While patients with DP had significantly lower spirometry throughout the 3-year follow-up period, their slope of decline, functional assessments at the first annual visit, the risk of CLAD, and mortality were similar to patients without DP. A sub-group analysis limited to patients with restrictive lung diseases as the transplant indication had similar findings. CONCLUSIONS Pre-transplant DD is common among LT candidates although it did not predict the need for DP. DP may be performed for functional or anatomic indications especially for addressing the donor-recipient size mismatch. Despite the lack of favorable effect on post-transplant spirometry, patients undergoing DP have acceptable and comparable early and late outcomes. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Adrian Lawrence
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Dylan Lovin
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Manish R Mohanka
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - John Joerns
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Srinivas Bollineni
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Vaidehi Kaza
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Fernando Torres
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - John Murala
- Department of Cardiovascular and Thoracic Surgery, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Matthias Peltz
- Department of Cardiovascular and Thoracic Surgery, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Michael A Wait
- Department of Cardiovascular and Thoracic Surgery, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Amit Banga
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, Lung Transplant Program, University of Texas Southwestern Medical Center, Dallas, TX, USA
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AbdelFattah E, Saeed A, Dwidar I, Elnady K, Nagdy M. Correlation between diaphragmatic mobility by transthoracic ultrasound and echocardiography findings in patients with idiopathic pulmonary fibrosis. EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2022. [DOI: 10.4103/ecdt.ecdt_18_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Lux S, Ramos D, Pinto A, Schilling S, Salinas M. Diaphragm Ultrasound in the Evaluation of Diaphragmatic Dysfunction in Lung Disease. Open Respir Med J 2021. [DOI: 10.2174/1874306402115010082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The diaphragm is the most important respiratory muscle, and its function may be limited by acute and chronic diseases. A diaphragmatic ultrasound, which quantifies dysfunction through different approaches, is useful in evaluating work of breathing and diaphragm atrophy, predicting successful weaning, and diagnosing critically ill patients. This technique has been used to determine reduced diaphragmatic function in patients with chronic obstructive pulmonary disease and interstitial diseases, while in those with COVID-19, diaphragmatic ultrasound has been used to predict weaning failure from mechanical ventilation.
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Diaphragmatic thickness and excursion by lung ultrasound in pediatric chronic pulmonary diseases. J Ultrasound 2021; 25:97-102. [PMID: 33604840 PMCID: PMC8964846 DOI: 10.1007/s40477-021-00570-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 02/04/2021] [Indexed: 10/22/2022] Open
Abstract
PURPOSE Many patients with chronic pulmonary diseases, such as interstitial lung disease, cystic fibrosis, and non-cystic fibrosis bronchiectasis, suffer from dyspnea and exercise intolerance. Reduced lung compliance is the main cause of the patients' dyspnea, but weak respiratory muscles could be an additional factor. The diaphragm is considered the major respiratory muscle. Our study aimed to detect diaphragmatic thickness and excursion by ultrasound in pediatric patients with chronic pulmonary diseases to assess respiratory muscle weakness in these patients. METHODS A case-control study was conducted on 130 patients with pediatric chronic pulmonary diseases (childhood interstitial lung diseases, cystic fibrosis, and non-cystic fibrosis bronchiectasis) and 100 control subjects. Ultrasound was used to detect diaphragmatic excursion and thickness, which were correlated with the severity of the disease, both clinically and functionally. RESULTS The right and left diaphragmatic excursions were significantly lower in the patients (19.469 ± 9.984 and 18.5 ± 10.131, respectively) than in the control subjects (29.6 ± 14.131 and 25.6 ± 12.827, respectively) (p values of 0.002 and 0.019). In contrast, the difference in the right and left diaphragmatic thicknesses between the patients and the controls was statistically insignificant (p values of 0.884 and 0.344). The left diaphragmatic excursion was positively correlated with the patients' age and weight, while both the right and the left diaphragmatic excursion significantly correlated with the patients' height, FEV1/FVC ratio, and heart rate. CONCLUSION The diaphragmatic excursion is lower in children and adolescents with chronic pulmonary diseases than in healthy control subjects. The diaphragmatic excursion is positively correlated with patients' age, weight, height, FEV1/FVC ratio, and heart rate.
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Santana PV, Cardenas LZ, Albuquerque ALPD, Carvalho CRRD, Caruso P. Diaphragmatic ultrasound: a review of its methodological aspects and clinical uses. J Bras Pneumol 2020; 46:e20200064. [PMID: 33237154 PMCID: PMC7909996 DOI: 10.36416/1806-3756/e20200064] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 05/30/2020] [Indexed: 12/12/2022] Open
Abstract
The diaphragm is the main muscle of respiration, acting continuously and uninterruptedly to sustain the task of breathing. Diaphragmatic dysfunction can occur secondary to numerous pathological conditions and is usually underdiagnosed in clinical practice because of its nonspecific presentation. Although several techniques have been used in evaluating diaphragmatic function, the diagnosis of diaphragmatic dysfunction is still problematic. Diaphragmatic ultrasound has gained importance because of its many advantages, including the fact that it is noninvasive, does not expose patients to radiation, is widely available, provides immediate results, is highly accurate, and is repeatable at the bedside. Various authors have described ultrasound techniques to assess diaphragmatic excursion and diaphragm thickening in the zone of apposition. Recent studies have proposed standardization of the methods. This article reviews the usefulness of ultrasound for the evaluation of diaphragmatic function, addressing the details of the technique, the main findings, and the clinical applications.
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Affiliation(s)
- Pauliane Vieira Santana
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.,. Unidade de Terapia Intensiva, A.C. Camargo Cancer Center, São Paulo (SP) Brasil
| | - Leticia Zumpano Cardenas
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.,. Unidade de Terapia Intensiva, A.C. Camargo Cancer Center, São Paulo (SP) Brasil
| | - André Luis Pereira de Albuquerque
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.,. Hospital Sírio-Libanês, São Paulo (SP) Brasil
| | - Carlos Roberto Ribeiro de Carvalho
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Pedro Caruso
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.,. Unidade de Terapia Intensiva, A.C. Camargo Cancer Center, São Paulo (SP) Brasil
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Yamamoto S, Hasebe T, Tomita K, Kamei S, Matsumoto T, Imai Y, Takahashi G, Kondo Y, Ito Y, Sakamaki F. Pulmonary perfusion by chest digital dynamic radiography: Comparison between breath-holding and deep-breathing acquisition. J Appl Clin Med Phys 2020; 21:247-255. [PMID: 33104288 PMCID: PMC7700935 DOI: 10.1002/acm2.13071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/17/2020] [Accepted: 09/29/2020] [Indexed: 12/19/2022] Open
Abstract
Purpose Pulmonary perfusion is an important factor for gas exchange. Chest digital dynamic radiography (DDR) by the deep‐breathing protocol can evaluate pulmonary perfusion in healthy subjects. However, respiratory artifacts may affect DDR in patients with respiratory diseases. We examined the feasibility of a breath‐holding protocol and compared it with the deep‐breathing protocol to reduce respiratory artifacts. Materials and methods A total of 42 consecutive patients with respiratory diseases (32 males; age, 68.6 ± 12.3 yr), including 21 patients with chronic obstructive pulmonary disease, underwent chest DDR through the breath‐holding protocol and the deep‐breathing protocol. Imaging success rate and exposure to radiation were compared. The correlation rate of temporal changes in each pixel value between the lung fields and left cardiac ventricles was analyzed. Results Imaging success rate was higher with the breath‐holding protocol vs the deep‐breathing protocol (97% vs 69%, respectively; P < 0.0001). The entrance surface dose was lower with the breath‐holding protocol (1.09 ± 0.20 vs 1.81 ± 0.08 mGy, respectively; P < 0.0001). The correlation rate was higher with the breath‐holding protocol (right lung field, 41.7 ± 9.3%; left lung field, 44.2 ± 8.9% vs right lung field, 33.4 ± 6.6%; left lung field, 36.0 ± 7.1%, respectively; both lung fields, P < 0.0001). In the lower lung fields, the correlation rate was markedly different (right, 15.3% difference; left, 14.1% difference; both lung fields, P < 0.0001). Conclusion The breath‐holding protocol resulted in high imaging success rate among patients with respiratory diseases, yielding vivid images of pulmonary perfusion.
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Affiliation(s)
- Shota Yamamoto
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Terumitsu Hasebe
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Kosuke Tomita
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Shunsuke Kamei
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Tomohiro Matsumoto
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Yutaka Imai
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Genki Takahashi
- Department of Respiratory Medicine, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Yusuke Kondo
- Department of Respiratory Medicine, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Yoko Ito
- Department of Respiratory Medicine, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
| | - Fumio Sakamaki
- Department of Respiratory Medicine, Tokai University Hachioji Hospital, Tokai University School of Medicine, Hachioji, Tokyo, Japan
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Alqahtani JS, Oyelade T, Sreedharan J, Aldhahir AM, Alghamdi SM, Alrajeh AM, Alqahtani AS, Alsulayyim A, Aldabayan YS, Alobaidi NY, AlAhmari MD. Diagnostic and clinical values of non-cardiac ultrasound in COPD: A systematic review. BMJ Open Respir Res 2020; 7:e000717. [PMID: 32978244 PMCID: PMC7520906 DOI: 10.1136/bmjresp-2020-000717] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Clinical and research utility of non-cardiac ultrasound (US) in chronic obstructive pulmonary disease (COPD) has been widely investigated. However, there is no systematic review assessing the clinical values of non-cardiac US techniques in COPD. METHODS We systematically searched electronic databases from inception to 24 June 2020. Two independent reviewers in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines extracted data. A narrative synthesis of the results was conducted considering non-cardiac US techniques that looked for diaphragm, muscles and bones in patients with COPD. RESULTS In total, 2573 abstracts were screened, and 94 full-text papers were reviewed. A total of 54 studies met the inclusion criteria. Thirty-five studies assessed the diaphragm, while 19 studies evaluated different muscles, including limb muscles and pulmonary lesions in COPD using US. Of the 54 included studies, 30% (16/54) evaluated the changes in either limb muscles or diaphragmatic features before and after physical interventions; 67% (36/54) assessed the correlations between sonographic features and COPD severity. Indeed, 14/15 and 9/13 studies reported a significant reduction in diaphragm excursion and thickness in COPD compared with healthy subjects, respectively; this was correlated significantly with the severity and prognosis of COPD. Three studies reported links between diaphragm length and COPD, where lower diaphragm length correlated with poorer prognosis and outcomes. Quadriceps (rectus femoris), ankle dorsiflexor (tibialis anterior) and vastus lateralis were the most common muscles in COPD assessed by US. More than 70% (12/17) of the studies reported a significant reduction in the cross-sectional area (CSA) of the rectus femoris, rectus femoris and vastus lateralis thickness in COPD compared with healthy subjects. Quadriceps CSA and thickness correlated positively with COPD prognosis, in which patients with reduced quadriceps CSA and thickness have higher risk of exacerbation, readmission and death. CONCLUSION US measurements of diaphragm excursion and thickness, as well as lower limb muscles strength, size and thickness, may provide a safe, portable and effective alternative to radiation-based techniques in diagnosis and prognosis as well as tracking improvement postintervention in patients with COPD.
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Affiliation(s)
- Jaber S Alqahtani
- Respiratory Medicine, University College London, London, UK
- Prince Sultan Military College of Health Sciences, Dammam, Saudi Arabia
| | - Tope Oyelade
- Division of Medicine, University College London, London, UK
| | - Jithin Sreedharan
- Prince Sultan Military College of Health Sciences, Dammam, Saudi Arabia
| | - Abdulelah M Aldhahir
- Respiratory Medicine, University College London, London, UK
- Department of Respiratory Care, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Saeed M Alghamdi
- National Heart and Lung Institute, Imperial College London, London, UK
- Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ahmed M Alrajeh
- Respiratory Care Department, College of Applied Medical Sciences, King Faisal University, Al-Hasa, Saudi Arabia
| | - Abdullah S Alqahtani
- Prince Sultan Military College of Health Sciences, Dammam, Saudi Arabia
- Anaesthesia & Critical Care, Division of Clinical Neuroscience, University of Nottingham, Nottingham, UK
| | - Abdullah Alsulayyim
- Department of Respiratory Care, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Yousef S Aldabayan
- Respiratory Care Department, College of Applied Medical Sciences, King Faisal University, Al-Hasa, Saudi Arabia
| | - Nowaf Y Alobaidi
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- Respiratory Therapy Department, King Saud bin Abdulaziz University for Health Sciences, Alahsa, Saudi Arabia
| | - Mohammed D AlAhmari
- Prince Sultan Military College of Health Sciences, Dammam, Saudi Arabia
- Dammam Health Network, Dammam, Saudi Arabia
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12
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From an abdominal ultrasound to a lung disease passing through the diaphragm: a case of idiopathic pulmonary fibrosis. J Ultrasound 2020; 23:607-611. [PMID: 32162155 DOI: 10.1007/s40477-020-00445-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 02/23/2020] [Indexed: 12/22/2022] Open
Abstract
RATIONALE Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease characterized by abnormal and excessive deposition of collagen in the pulmonary interstitium (fibrosis) with minimal associated inflammation evolving into progressive and irreversible decline in lung function. PATIENT CONCERNS Patient referred discomfort, bilateral upper quadrant abdominal pain, and progressive exertional dyspnea (shortness of breath with exercise). DIAGNOSIS Exertional dyspnea due to idiopathic pulmonary fibrosis (IPF). INTERVENTION Sonographic evaluation demonstrated an alteration of diaphragm excursion together with a relevant alteration of the pleural line and multiple irregular and confluent B lines. CONCLUSIONS Lung and diaphragm ultrasound could be employed as a screening or first-line diagnostic tool in the suspicion of interstitial lung disease.
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13
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do Nascimento IB, Fleig R. Mobility impact and methods of diaphragm monitoring in patients with chronic obstructive pulmonary disease: a systematic review. Clinics (Sao Paulo) 2020; 75:e1428. [PMID: 31939562 PMCID: PMC6943239 DOI: 10.6061/clinics/2020/e1428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 11/08/2019] [Indexed: 12/23/2022] Open
Abstract
The objectives of the study were to identify the factors that limit diaphragmatic mobility and evaluate the therapeutic results of the monitoring methods previously used in patients with chronic obstructive pulmonary disease. The PubMed, Web of Science, Scopus, and LILACS databases were used. A gray literature search was conducted with Google scholar. PRISMA was used, and the bias risk analysis adapted from the Cochrane Handbook for clinical trials and, for other studies, the Downs and Black checklist were used. Twenty-five articles were included in the qualitative synthesis analysis on physiotherapeutic techniques and diaphragmatic mobility. Eight clinical trials indicated satisfactory domains, and on the Downs and Black scale, 17 cohort studies were evaluated to have an acceptable score. Different conditions must be observed; for example, for postoperative assessments the supine position is suggested to be the most appropriate position to verify diaphragm excursion, although it has been shown to be associated with difficulty of restriction and matching in samples. Therefore, we identified the need for contemporary adjustments and strategies that used imaging instruments, preferably in the dorsal position. Therapeutic evidence on the association between the instrumental method and diaphragmatic mobility can be controversial. The ultrasound measurements indicated some relevance for different analyses, for pulmonary hyperinflation as well as diaphragm thickness and mobilization, in COPD patients. In particular, the study suggests that the ultrasound technique with B-mode for analysis and M-mode for diaphragmatic excursion be used with a 2 - 5 MHz with the patient in the supine position. However, the methods used to monitor diaphragm excursion should be adapted to the conditions of the patients, and additional investigations of their characteristics should be performed. More selective inclusion criteria and better matching in the samples are very important. In addition, more narrow age, sex and weight categories are important, especially in patients with chronic obstructive pulmonary disease.
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Affiliation(s)
- Iramar Baptistella do Nascimento
- Departamento de Tecnologia Industrial, Universidade do Estado de Santa Catarina, São Bento do Sul, SC, BR
- *Corresponding author. E-mail:
| | - Raquel Fleig
- Departamento de Tecnologia Industrial, Universidade do Estado de Santa Catarina, São Bento do Sul, SC, BR
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14
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Santana PV, Cardenas LZ, de Albuquerque ALP, de Carvalho CRR, Caruso P. Diaphragmatic ultrasound findings correlate with dyspnea, exercise tolerance, health-related quality of life and lung function in patients with fibrotic interstitial lung disease. BMC Pulm Med 2019; 19:183. [PMID: 31638951 PMCID: PMC6802109 DOI: 10.1186/s12890-019-0936-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 09/11/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Fibrotic interstitial lung disease (FILD) patients are typically dyspneic and exercise-intolerant with consequent impairment of health-related quality of life (HRQoL). Respiratory muscle dysfunction is among the underlying mechanisms of dyspnea and exercise intolerance in FILD but may be difficult to diagnose. Using ultrasound, we compared diaphragmatic mobility and thickening in FILD cases and healthy controls and correlated these findings with dyspnea, exercise tolerance, HRQoL and lung function. METHODS We measured diaphragmatic mobility and thickness during quiet (QB) and deep breathing (DB) and calculated thickening fraction (TF) in 30 FILD cases and 30 healthy controls. We correlated FILD cases' diaphragmatic findings with dyspnea, exercise tolerance (six-minute walk test), lung function and HRQoL (St. George's Respiratory Questionnaire). RESULTS Diaphragmatic mobility was similar between groups during QB but was lower in FILD cases during DB when compared to healthy controls (3.99 cm vs 7.02 cm; p < 0.01). FILD cases showed higher diaphragm thickness during QB but TF was lower in FILD when compared to healthy controls (70% vs 188%, p < 0.01). During DB, diaphragmatic mobility and thickness correlated with lung function, exercise tolerance and HRQoL, but inversely correlated with dyspnea. Most FILD cases (70%) presented reduced TF, and these patients had higher dyspnea and exercise desaturation, lower HRQoL and lung function. CONCLUSION Compared to healthy controls, FILD cases present with lower diaphragmatic mobility and thickening during DB that correlate to increased dyspnea, decreased exercise tolerance, worse HRQoL and worse lung function. FILD cases with reduced diaphragmatic thickening are more dyspneic and exercise-intolerant, have lower HRQoL and lung function.
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Affiliation(s)
- Pauliane Vieira Santana
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil. .,Intensive Care Unit, AC Camargo Cancer Center, São Paulo, Brazil.
| | - Leticia Zumpano Cardenas
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Intensive Care Unit, AC Camargo Cancer Center, São Paulo, Brazil
| | - André Luis Pereira de Albuquerque
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Hospital Sírio Libanês, São Paulo, Brazil
| | - Carlos Roberto Ribeiro de Carvalho
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Pedro Caruso
- Pulmonary Division, Heart Institute (InCor), Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Intensive Care Unit, AC Camargo Cancer Center, São Paulo, Brazil
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15
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Garnier M, Hafiani EM, Arbelot C, Blayau C, Labbe V, Stankovic-Stojanovic K, Lionnet F, Bonnet F, Fulgencio JP, Fartoukh M, Quesnel C. Morpho-functional evaluation of lung aeration as a marker of sickle-cell acute chest syndrome severity in the ICU: a prospective cohort study. Ann Intensive Care 2019; 9:109. [PMID: 31565756 PMCID: PMC6766460 DOI: 10.1186/s13613-019-0583-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/21/2019] [Indexed: 01/11/2023] Open
Abstract
Background Acute chest syndrome (ACS) is the main cause of morbi-mortality in patients with sickle-cell disease in the intensive care unit (ICU). ACS definition encompasses many types of lung damage, making early detection of the most severe forms challenging. We aimed to describe ACS-related lung ultrasound (LU) patterns and determine LU performance to assess ACS outcome. Results We performed a prospective cohort study including 56 ICU patients hospitalized for ACS in a tertiary university hospital (Paris, France). LU and bedside spirometry were performed at admission (D0) and after 48 h (D2). Complicated outcome was defined by the need for transfusion of ≥ 3 red blood cell units, mechanical ventilation, ICU length-of-stay > 5 days, or death. A severe loss of lung aeration was observed in all patients, predominantly in inferior lobes, and was associated with decreased vital capacity (22 [15–33]% of predicted). The LU Score was 24 [20–28] on D0 and 20 [15–24] on D2. Twenty-five percent of patients (14/56) had a complicated outcome. Neither oxygen supply, pain score, haemoglobin, LDH and bilirubin values at D0; nor their change at D2, differed regarding patient outcome. Conversely, LU re-aeration score and spirometry change at D2 improved significantly more in patients with a favourable outcome. A negative LU re-aeration score at D2 was an independent marker of severity of ACS in ICU. Conclusions ACS is associated with severe loss of lung aeration, whose resolution is associated with favourable outcome. Serial bedside LU may accurately and early identify ACS patients at risk of complicated outcome.
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Affiliation(s)
- Marc Garnier
- Département d'Anesthésie et Réanimation, APHP Hôpital Tenon, 4 rue de la Chine, 75020, Paris, France. .,Service de Réanimation Médico-Chirurgicale, APHP Hôpital Tenon, Paris, France. .,Université Pierre et Marie Curie Sorbonne Université, Paris, France.
| | - El Mahdi Hafiani
- Département d'Anesthésie et Réanimation, APHP Hôpital Tenon, 4 rue de la Chine, 75020, Paris, France.,Service de Réanimation Médico-Chirurgicale, APHP Hôpital Tenon, Paris, France
| | - Charlotte Arbelot
- Département d'Anesthésie et Réanimation, APHP Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Clarisse Blayau
- Département d'Anesthésie et Réanimation, APHP Hôpital Tenon, 4 rue de la Chine, 75020, Paris, France.,Service de Réanimation Médico-Chirurgicale, APHP Hôpital Tenon, Paris, France
| | - Vincent Labbe
- Service de Réanimation Médico-Chirurgicale, APHP Hôpital Tenon, Paris, France
| | - Katia Stankovic-Stojanovic
- Service de Médecine Interne et Centre de Référence de la Drépanocytose, APHP Hôpital Tenon, Paris, France
| | - François Lionnet
- Service de Médecine Interne et Centre de Référence de la Drépanocytose, APHP Hôpital Tenon, Paris, France
| | - Francis Bonnet
- Département d'Anesthésie et Réanimation, APHP Hôpital Tenon, 4 rue de la Chine, 75020, Paris, France.,Université Pierre et Marie Curie Sorbonne Université, Paris, France
| | - Jean-Pierre Fulgencio
- Département d'Anesthésie et Réanimation, APHP Hôpital Tenon, 4 rue de la Chine, 75020, Paris, France.,Service de Réanimation Médico-Chirurgicale, APHP Hôpital Tenon, Paris, France
| | - Muriel Fartoukh
- Service de Réanimation Médico-Chirurgicale, APHP Hôpital Tenon, Paris, France.,Université Pierre et Marie Curie Sorbonne Université, Paris, France
| | - Christophe Quesnel
- Département d'Anesthésie et Réanimation, APHP Hôpital Tenon, 4 rue de la Chine, 75020, Paris, France.,Université Pierre et Marie Curie Sorbonne Université, Paris, France
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16
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de Oliveira MV, Rocha NDN, Santos RS, Rocco MRM, de Magalhães RF, Silva JD, Souza SAL, Capelozzi VL, Pelosi P, Silva PL, Rocco PRM. Endotoxin-Induced Emphysema Exacerbation: A Novel Model of Chronic Obstructive Pulmonary Disease Exacerbations Causing Cardiopulmonary Impairment and Diaphragm Dysfunction. Front Physiol 2019; 10:664. [PMID: 31191356 PMCID: PMC6546905 DOI: 10.3389/fphys.2019.00664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 05/09/2019] [Indexed: 12/26/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a progressive disorder of the lung parenchyma which also involves extrapulmonary manifestations, such as cardiovascular impairment, diaphragm dysfunction, and frequent exacerbations. The development of animal models is important to elucidate the pathophysiology of COPD exacerbations and enable analysis of possible therapeutic approaches. We aimed to characterize a model of acute emphysema exacerbation and evaluate its consequences on the lung, heart, and diaphragm. Twenty-four Wistar rats were randomly assigned into one of two groups: control (C) or emphysema (ELA). In ELA group, animals received four intratracheal instillations of pancreatic porcine elastase (PPE) at 1-week intervals. The C group received saline under the same protocol. Five weeks after the last instillation, C and ELA animals received saline (SAL) or E. coli lipopolysaccharide (LPS) (200 μg in 200 μl) intratracheally. Twenty-four hours after saline or endotoxin administration, arterial blood gases, lung inflammation and morphometry, collagen fiber content, and lung mechanics were analyzed. Echocardiography, diaphragm ultrasonography (US), and computed tomography (CT) of the chest were done. ELA-LPS animals, compared to ELA-SAL, exhibited decreased arterial oxygenation; increases in alveolar collapse (p < 0.0001), relative neutrophil counts (p = 0.007), levels of cytokine-induced neutrophil chemoattractant-1, interleukin (IL)-1β, tumor necrosis factor-α, IL-6, and vascular endothelial growth factor in lung tissue, collagen fiber deposition in alveolar septa, airways, and pulmonary vessel walls, and dynamic lung elastance (p < 0.0001); reduced pulmonary acceleration time/ejection time ratio, (an indirect index of pulmonary arterial hypertension); decreased diaphragm thickening fraction and excursion; and areas of emphysema associated with heterogeneous alveolar opacities on chest CT. In conclusion, we developed a model of endotoxin-induced emphysema exacerbation that affected not only the lungs but also the heart and diaphragm, thus resembling several features of human disease. This model of emphysema should allow preclinical testing of novel therapies with potential for translation into clinical practice.
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Affiliation(s)
- Milena Vasconcellos de Oliveira
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Nazareth de Novaes Rocha
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University, Niterói, Brazil
| | - Raquel Souza Santos
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcella Rieken Macedo Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Raquel Ferreira de Magalhães
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Johnatas Dutra Silva
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sergio Augusto Lopes Souza
- Department of Radiology, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vera Luiza Capelozzi
- Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy.,San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
| | - Pedro Leme Silva
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Patricia Rieken Macedo Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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17
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Minami T, Manzoor K, McCool FD. Assessing Diaphragm Function in Chest Wall and Neuromuscular Diseases. Clin Chest Med 2019; 39:335-344. [PMID: 29779593 DOI: 10.1016/j.ccm.2018.01.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Diaphragm dysfunction is defined as the partial or complete loss of diaphragm muscle contractility. However, because the diaphragm is one of only a few skeletal muscles that is not amenable to direct examination, the tools available for the clinician to assess diaphragm function have been limited. Traditionally, measures of lung volume, inspiratory muscle strength, and radiographic techniques such as fluoroscopy have provided the major method to assess diaphragm function. Measurement of transdiaphragmatic pressure provides the most direct means of evaluating the diaphragm, but this technique is not readily available to clinicians. Diaprhragm ultrasonography is new method that allows for direct examination of the diaphragm.
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Affiliation(s)
- Taro Minami
- The Warren Alpert Medical School of Brown University, Memorial Hospital of Rhode Island, 111 Brewster Street, Pawtucket, RI 02860, USA
| | - Kamran Manzoor
- The Warren Alpert Medical School of Brown University, 111 Brewster Street, Pawtucket, RI 02860, USA
| | - F Dennis McCool
- The Warren Alpert Medical School of Brown University, Memorial Hospital of Rhode Island, 111 Brewster Street, Pawtucket, RI 02860, USA.
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18
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Boccatonda A, Decorato V, Cocco G, Marinari S, Schiavone C. Ultrasound evaluation of diaphragmatic mobility in patients with idiopathic lung fibrosis: a pilot study. Multidiscip Respir Med 2018; 14:1. [PMID: 30651988 PMCID: PMC6330497 DOI: 10.1186/s40248-018-0159-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 11/09/2018] [Indexed: 12/21/2022] Open
Abstract
Background Some previous works have tested LUS use in diagnosing and monitoring interstitial lung diseases. B-lines are main sonographic signs for interstitial diseases. Increasing evidences suggest that dyspnea and impaired exercise capacity in IPF patients can be related, at least in part, to respiratory muscle dysfunction, in particular to diaphragm functionality. Both B-mode and M-mode ultrasound techniques have been employed to assess diaphragm excursion (DE), which measures the distance that the diaphragm is able to move during the respiratory cycle. Methods The main objective of this case-control study was to evaluate if differences exist between diaphragmatic excursions in IPF patients and in a control group of healthy subjects. Secondary objectives were to evaluate possible correlations among respiratory excursions, anthropometric parameters and respiratory function parameters. All patients performed spirometry and body plethysmography (PC). Diaphragm was examined by ultrasound imaging in B-MODE, and respiratory excursions were evaluated in M-MODE. Examination consisted of 3 measurements of the inspiratory phase at rest and after deep inspiration. Results Twelve patients with IPF and 12 healthy subjects were enrolled. There were no significant differences between respiratory excursions in patients and controls during spontaneous breathing, while there was a statistically significant difference between the mean values of the deep respiratory excursion in the two groups (p value < 0.001). There was a positive correlation between respiratory excursion with normal breath and chest circumference in controls (p = 0.034; R = 0.614) and in patients (p = 0.032; R = 0.37), but this relationship was not found even in subjects in deep breathing. A positive correlation was found between FVC values and diaphragmatic motility both at rest and in deep breathing in fibrotic patients. Conclusions Diaphragmatic mobility is lower in IPF patients than in healthy controls, especially during deep inspiration. The correlation between reduced FVC and diaphragmatic excursion values in IPF patients can be of interest, since it could represent an index of functional respiratory function performed by a non-invasive, low-cost, simple and reliable imaging technique, such as LUS.
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Affiliation(s)
- Andrea Boccatonda
- 1Unit of Internistic Ultrasound, Department of MedicineScience of Aging G. D'Annunzio University, Cesi -Met, via Luigi Polacchi, 66100 Chieti, (CH) Italy
| | - Valentina Decorato
- 1Unit of Internistic Ultrasound, Department of MedicineScience of Aging G. D'Annunzio University, Cesi -Met, via Luigi Polacchi, 66100 Chieti, (CH) Italy
| | - Giulio Cocco
- 1Unit of Internistic Ultrasound, Department of MedicineScience of Aging G. D'Annunzio University, Cesi -Met, via Luigi Polacchi, 66100 Chieti, (CH) Italy
| | - Stefano Marinari
- Unit of Pneumology, SS Annunziata University Hospital, Chieti, Italy
| | - Cosima Schiavone
- 1Unit of Internistic Ultrasound, Department of MedicineScience of Aging G. D'Annunzio University, Cesi -Met, via Luigi Polacchi, 66100 Chieti, (CH) Italy
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19
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Park J, Jung J, Yoon SH, Goo JM, Hong H, Yoon JH. Inspiratory Lung Expansion in Patients with Interstitial Lung Disease: CT Histogram Analyses. Sci Rep 2018; 8:15265. [PMID: 30323215 PMCID: PMC6189065 DOI: 10.1038/s41598-018-33638-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 10/02/2018] [Indexed: 11/09/2022] Open
Abstract
This study aimed to evaluate inspiratory lung expansion in patients with interstitial lung disease (ILD) using histogram analyses based on advanced image registration between inspiratory and expiratory CT scans. We included 16 female ILD patients and eight age- and sex-matched normal controls who underwent full-inspiratory and expiratory CT scans. The CT scans were sequentially aligned based on the surface, landmarks, and attenuation of the lung parenchyma. Histogram analyses were performed on the degree of lung expansion (DLE) of each pixel between the aligned images in x-, y-, z-axes, and 3-dimensionally (3D). The overall mean registration error was 1.9 mm between the CT scans. The DLE3D in ILD patients was smaller than in the controls (mean, 17.6 mm vs. 26.9 mm; p = 0.023), and less heterogeneous in terms of standard deviation, entropy, and uniformity (p < 0.05). These results were mainly due to similar results in the DLEZ of the lower lungs. A forced vital capacity tended to be weakly correlated with mean (r2 = 0.210; p = 0.074), and histogram parameters (r2 = 0.194-0.251; p = 0.048-0.100) of the DLE3D in the lower lung in ILD patients. Our findings indicate that reduced and less heterogeneous inspiratory lung expansion in ILD patients can be identified by using advanced accurate image registration.
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Affiliation(s)
- Junghoan Park
- Department of Radiology, Seoul National University Hospital, Seoul, Korea.,Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Julip Jung
- Department of Software Convergence, Seoul Women's University, Seoul, Korea
| | - Soon Ho Yoon
- Department of Radiology, Seoul National University Hospital, Seoul, Korea. .,Department of Radiology, Seoul National University College of Medicine, Seoul, Korea.
| | - Jin Mo Goo
- Department of Radiology, Seoul National University Hospital, Seoul, Korea.,Department of Radiology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea
| | - Helen Hong
- Department of Software Convergence, Seoul Women's University, Seoul, Korea
| | - Jeong-Hwa Yoon
- Interdisciplinary Program in Medical Informatics, Seoul National University College of Medicine, Seoul, Korea
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20
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Skaarup SH, Løkke A, Laursen CB. The Area method: a new method for ultrasound assessment of diaphragmatic movement. Crit Ultrasound J 2018; 10:15. [PMID: 29946769 PMCID: PMC6019663 DOI: 10.1186/s13089-018-0092-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 05/02/2018] [Indexed: 01/01/2023] Open
Abstract
Background Ultrasound can be used to assess diaphragm movement. Existing methods focus on movement at a single point at the hemidiaphragm and may not consider the anatomic and functional complexity. We aimed to develop an ultrasound method, the Area method, to assess movement of the entire hemidiaphragm dome and to compare it with existing methods to evaluate accuracy, inter-rater agreement, and feasibility. Methods Movement of the diaphragm was evaluated by ultrasonography in 19 healthy subjects and correlated with simultaneously performed spirometry. Two existing methods, the M-mode excursion at the posterior part of diaphragm and the B-mode at the top of the diaphragm, were compared with the Area method. Two independent raters reviewed film clips to analyze inter-rater agreement. Feasibility was tested by novice ultrasound operators. Results Correlation with expired lung volume was higher with the Area method, 0.88 (95% CI 0.81–0.95), p < 0.001, and with the M-mode measurement, 0.84 (95% CI 0.75–0.92), p < 0.001, than with the B-mode measurement, 0.71 (95% CI 0.59–0.83), p < 0.001. Inter-rater agreement was highest with the Area method, 0.9, p < 0.001, and M-mode measurement 0.9, p < 0.001, and lower with the B-mode measurement, 0.8, p < 0.001. The M-mode measurement could be done in only 20% at the left side. The Area method could be performed in all participants at both hemidiaphragms, and novice operators found it easy to perform. Conclusion A new method to evaluate diaphragm movement is introduced. Accuracy and inter-rater agreement are high. The Area method is equally feasible at both hemidiaphragms in contrast to existing methods. However, additional studies should include more participants, different types of pulmonary diseases, and investigate the role of patient position to validate the Area method fully. Electronic supplementary material The online version of this article (10.1186/s13089-018-0092-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Søren Helbo Skaarup
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Nørrebrogade 44, 8000, Aarhus C, Denmark.
| | - Anders Løkke
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Nørrebrogade 44, 8000, Aarhus C, Denmark
| | - Christian B Laursen
- Department of Respiratory Medicine, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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Brüggemann AKV, Leal BE, Gonçalves MA, Lisboa L, Tavares MGDS, Paulin E. Mobilidade diafragmática direita e esquerda em indivíduos saudáveis e na doença pulmonar obstrutiva crônica. FISIOTERAPIA E PESQUISA 2018. [DOI: 10.1590/1809-2950/16155925022018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
RESUMO Avaliar o músculo diafragma é importante para verificar suas possíveis alterações ou disfunções. Existem várias formas de avaliar a mobilidade diafragmática, mas poucos estudos que comparam a mobilidade do hemidiafragma direito com o esquerdo. O objetivo deste estudo é avaliar se existem diferenças entre a mobilidade diafragmática das hemicúpulas direita e esquerda em indivíduos saudáveis e em indivíduos com Doença Pulmonar Obstrutiva Crônica (DOCP), bem como comparar a mobilidade diafragmática entre homens e mulheres, e entre pacientes saudáveis e com DPOC. Foram avaliados 40 indivíduos saudáveis e 40 indivíduos com diagnóstico clínico de DPOC. Utilizaram-se os parâmetros antropométricos, cardiopulmonares e avaliação da mobilidade diafragmática pelo método radiográfico. Os dados foram analisados estatisticamente e tratados com análise descritiva (média e desvio-padrão) e análise inferencial. Para comparar a mobilidade das hemicúpulas diafragmáticas direita e esquerda, utilizou-se o teste t pareado. O nível de significância adotado para o tratamento estatístico foi de 5% (p<0,05). Não houve diferença da mobilidade diafragmática tanto do lado direito quanto do lado esquerdo nos indivíduos saudáveis (p=0,45) e nos indivíduos com DPOC (p=0,77), assim como não houve diferenças quando os grupos foram separados por sexo. Foi encontrada uma diferença importante comparando tanto a mobilidade diafragmática do lado direito quanto do lado esquerdo entre indivíduos saudáveis e DPOC (p<0,001). Concluiu-se que a mobilidade diafragmática das hemicúpulas direita e esquerda em indivíduos saudáveis e em indivíduos com DPOC é a mesma. Não há diferença da mobilidade entre homens e mulheres. A mobilidade diafragmática é reduzida em paciente com DPOC.
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22
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Santana PV, Prina E, Albuquerque ALP, Carvalho CRR, Caruso P. Identifying decreased diaphragmatic mobility and diaphragm thickening in interstitial lung disease: the utility of ultrasound imaging. J Bras Pneumol 2017; 42:88-94. [PMID: 27167428 PMCID: PMC4853060 DOI: 10.1590/s1806-37562015000000266] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/27/2016] [Indexed: 12/20/2022] Open
Abstract
Objective: To investigate the applicability of ultrasound imaging of the diaphragm in interstitial lung disease (ILD). Methods: Using ultrasound, we compared ILD patients and healthy volunteers (controls) in terms of diaphragmatic mobility during quiet and deep breathing; diaphragm thickness at functional residual capacity (FRC) and at total lung capacity (TLC); and the thickening fraction (TF, proportional diaphragm thickening from FRC to TLC). We also evaluated correlations between diaphragmatic dysfunction and lung function variables. Results: Between the ILD patients (n = 40) and the controls (n = 16), mean diaphragmatic mobility was comparable during quiet breathing, although it was significantly lower in the patients during deep breathing (4.5 ± 1.7 cm vs. 7.6 ± 1.4 cm; p < 0.01). The patients showed greater diaphragm thickness at FRC (p = 0.05), although, due to lower diaphragm thickness at TLC, they also showed a lower TF (p < 0.01). The FVC as a percentage of the predicted value (FVC%) correlated with diaphragmatic mobility (r = 0.73; p < 0.01), and an FVC% cut-off value of < 60% presented high sensitivity (92%) and specificity (81%) for indentifying decreased diaphragmatic mobility. Conclusions: Using ultrasound, we were able to show that diaphragmatic mobility and the TF were lower in ILD patients than in healthy controls, despite the greater diaphragm thickness at FRC in the former. Diaphragmatic mobility correlated with ILD functional severity, and an FVC% cut-off value of < 60% was found to be highly accurate for indentifying diaphragmatic dysfunction on ultrasound.
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Affiliation(s)
| | - Elena Prina
- Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | | | | | - Pedro Caruso
- Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
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23
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Comparative study of two models of combined pulmonary fibrosis and emphysema in mice. Acta Histochem 2017; 119:244-251. [PMID: 28233574 DOI: 10.1016/j.acthis.2017.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 12/31/2016] [Accepted: 01/23/2017] [Indexed: 11/20/2022]
Abstract
Combined pulmonary fibrosis and emphysema (CPFE) is an "umbrella term" encompassing emphysema and pulmonary fibrosis, but its pathogenesis is not known. We established two models of CPFE in mice using tracheal instillation with bleomycin (BLM) or murine gammaherpesvirus 68 (MHV-68). Experimental mice were divided randomly into four groups: A (normal control, n=6), B (emphysema, n=6), C (emphysema+MHV-68, n=24), D (emphysema+BLM, n=6). Group C was subdivided into four groups: C1 (sacrificed on day 367, 7 days after tracheal instillation of MHV-68); C2 (day 374; 14days); C3 (day 381; 21days); C4 (day 388; 28days). Conspicuous emphysema and interstitial fibrosis were observed in BLM and MHV-68 CPFE mouse models. However, BLM induced diffuse pulmonary interstitial fibrosis with severely diffuse pulmonary inflammation; MHV-68 induced relatively modest inflammation and fibrosis, and the inflammation and fibrosis were not diffuse, but instead around bronchioles. Inflammation and fibrosis were detectable in the day-7 subgroup and reached a peak in the day-28 subgroup in the emphysema + MHV-68 group. Levels of macrophage chemoattractant protein-1, macrophage inflammatory protein-1α, interleukin-13, and transforming growth factor-β1 in bronchoalveolar lavage fluid were increased significantly in both models. Percentage of apoptotic type-2 lung epithelial cells was significantly higher; however, all four types of cytokine and number of macrophages were significantly lower in the emphysema+MHV-68 group compared with the emphysema +BLM group. The different changes in pathology between BLM and MHV-68 mice models demonstrated different pathology subtypes of CPFE: macrophage infiltration and apoptosis of type-II lung epithelial cells increased with increasing pathology score for pulmonary fibrosis.
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24
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Baldi BG, Salge JM. Respiratory muscles in interstitial lung disease: poorly explored and poorly understood. J Bras Pneumol 2016; 42:82-3. [PMID: 27167426 PMCID: PMC4853058 DOI: 10.1590/s1806-37562016000200002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
| | - João Marcos Salge
- Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
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25
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Papaioannou AI, Kostikas K, Manali ED, Papadaki G, Roussou A, Kolilekas L, Borie R, Bouros D, Papiris SA. Combined pulmonary fibrosis and emphysema: The many aspects of a cohabitation contract. Respir Med 2016; 117:14-26. [PMID: 27492509 DOI: 10.1016/j.rmed.2016.05.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 03/20/2016] [Accepted: 05/05/2016] [Indexed: 12/12/2022]
Abstract
Combined pulmonary fibrosis and emphysema (CPFE) is a clinical entity characterized by the coexistence of upper lobe emphysema and lower lobe fibrosis. Patients with this condition experience severe dyspnea and impaired gas exchange with preserved lung volumes. The diagnosis of the CPFE syndrome is based on HRCT imaging, showing the coexistence of emphysema and pulmonary fibrosis both in varying extent and locations within the lung parenchyma. Individual genetic background seem to predispose to the development of the disease. The risk of the development of pulmonary hypertension in patients with CPFE is high and related to poor prognosis. CPFE patients also present a high risk of lung cancer. Mortality is significant in patients with CPFE and median survival is reported between 2.1 and 8.5 years. Currently, no specific recommendations are available regarding the management of patients with CPFE. In this review we provide information on the existing knowledge on CPFE regarding the pathophysiology, clinical manifestations, imaging, complications, possible therapeutic interventions and prognosis of the disease.
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Affiliation(s)
- Andriana I Papaioannou
- 2nd Respiratory Medicine Department, "Attikon" University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Greece.
| | - Konstantinos Kostikas
- 2nd Respiratory Medicine Department, "Attikon" University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Greece.
| | - Effrosyni D Manali
- 2nd Respiratory Medicine Department, "Attikon" University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Greece.
| | - Georgia Papadaki
- 2nd Respiratory Medicine Department, "Attikon" University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Greece.
| | - Aneza Roussou
- 2nd Respiratory Medicine Department, "Attikon" University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Greece.
| | - Likurgos Kolilekas
- 7th Department of Pneumonology, "Sotiria" Chest Diseases Hospital, Athens, Greece.
| | - Raphaël Borie
- APHP, Hôpital Bichat, DHU FIRE Service de Pneumologie A, Centre de compétence des maladies pulmonaires rares, INSERM, Unité 1152, Université Paris Diderot, Paris, France.
| | - Demosthenis Bouros
- 1st Respiratory Medicine Department, "Sotiria" Chest Diseases Hospital, Athens, Medical School, National and Kapodistrian University of Athens, Greece.
| | - Spyridon A Papiris
- 2nd Respiratory Medicine Department, "Attikon" University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Greece.
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26
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Lin H, Jiang S. Combined pulmonary fibrosis and emphysema (CPFE): an entity different from emphysema or pulmonary fibrosis alone. J Thorac Dis 2015; 7:767-79. [PMID: 25973246 DOI: 10.3978/j.issn.2072-1439.2015.04.17] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Accepted: 02/04/2015] [Indexed: 11/14/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and idiopathic interstitial pneumonias (IIP), with different radiological, pathological, functional and prognostic characteristics, have been regarded as separate entities for a long time. However, there is an increasing recognition of the coexistence of emphysema and pulmonary fibrosis in individuals. The association was first described as a syndrome by Cottin in 2005, named "combined pulmonary fibrosis and emphysema (CPFE)", which is characterized by exertional dyspnea, upper-lobe emphysema and lower-lobe fibrosis, preserved lung volume and severely diminished capacity of gas exchange. CPFE is frequently complicated by pulmonary hypertension, acute lung injury and lung cancer and prognosis of it is poor. Treatments for CPFE patients with severe pulmonary hypertension are less effective other than lung transplantation. However, CPFE has not yet attracted wide attention of clinicians and there is no research systematically contrasting the differences among CPFE, emphysema/COPD and IIP at the same time. The authors will review the existing knowledge of CPFE and compare them to either entity alone for the first time, with the purpose of improving the awareness of this syndrome and exploring novel effective therapeutic strategies in clinical practice.
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Affiliation(s)
- Huijin Lin
- 1 Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China ; 2 Sun Yat-Sen University Institute of Respiratory Disease, Guangzhou 510275, China
| | - Shanping Jiang
- 1 Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China ; 2 Sun Yat-Sen University Institute of Respiratory Disease, Guangzhou 510275, China
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27
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Niu XK, Bhetuwal A, Yang HF. CT-guided core needle biopsy of pleural lesions: evaluating diagnostic yield and associated complications. Korean J Radiol 2015; 16:206-12. [PMID: 25598692 PMCID: PMC4296272 DOI: 10.3348/kjr.2015.16.1.206] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 11/05/2014] [Indexed: 01/10/2023] Open
Abstract
Objective The purpose of this study was to retrospectively evaluate the diagnostic accuracy and complications of CT-guided core needle biopsy (CT-guided CNB) of pleural lesion and the possible effects of influencing factors. Materials and Methods From September 2007 to June 2013, 88 consecutive patients (60 men and 28 women; mean [± standard deviation] age, 51.1 ± 14.4 years; range, 19-78 years) underwent CT-guided CNB, which was performed by two experienced chest radiologists in our medical center. Out of 88 cases, 56 (63%) were diagnosed as malignant, 28 (31%) as benign and 4 (5%) as indeterminate for CNB of pleural lesions. The final diagnosis was confirmed by either histopathological diagnosis or clinical follow-up. The diagnostic accuracy, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and complication rates were statistically evaluated. Influencing factors (patient age, sex, lesion size, pleural-puncture angle, patient position, pleural effusion, and number of pleural punctures) were assessed for their effect on accuracy of CT-guided CNB using univariate and subsequent multivariate analysis. Results Diagnostic accuracy, sensitivity, specificity, PPV, and NPV were 89.2%, 86.1%, 100%, 100%, and 67.8%, respectively. The influencing factors had no significant effect in altering diagnostic accuracy. As far as complications were concerned, occurrence of pneumothorax was observed in 14 (16%) out of 88 patients. Multivariate analysis revealed lesion size/pleural thickening as a significant risk factor (odds ratio [OR]: 8.744, p = 0.005) for occurrence of pneumothorax. Moreover, presence of pleural effusion was noted as a significant protective factor (OR: 0.171, p = 0.037) for pneumothorax. Conclusion CT-guided CNB of pleural lesion is a safe procedure with high diagnostic yield and low risk of significant complications.
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Affiliation(s)
- Xiang-Ke Niu
- Department of Radiology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan Province 610000, China
| | - Anup Bhetuwal
- Sichuan Key Laboratory of Medical Imaging, and Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province 637000, China
| | - Han-Feng Yang
- Sichuan Key Laboratory of Medical Imaging, and Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province 637000, China
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