1
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Gao YH, Zhu YN, Bai JW, Liang S, Wang L, Wang L, Gong SG, Zheng HZ, Xu JF. Severe Pulmonary Hypertension Increased All-cause Mortality in Patients With Bronchiectasis. Arch Bronconeumol 2024; 60:454-457. [PMID: 38616157 DOI: 10.1016/j.arbres.2024.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/16/2024]
Affiliation(s)
- Yong-Hua Gao
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Respiratory Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Ya-Nan Zhu
- Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jiu-Wu Bai
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Respiratory Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Shuo Liang
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Respiratory Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Ling Wang
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Respiratory Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Lan Wang
- Department of Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Su-Gang Gong
- Department of Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Hui-Zhen Zheng
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Respiratory Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Jin-Fu Xu
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Respiratory Medicine, School of Medicine, Tongji University, Shanghai, China.
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2
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Xu J, Wang JJ, Zhao QH, Gong SG, Wu WH, Jiang R, Luo CJ, Qiu HL, Li HT, Wang L, Liu JM. Pulmonary vascular resistance predicts the mortality in patients with bronchiectasis-associated pulmonary hypertension. J Hypertens 2024:00004872-990000000-00481. [PMID: 38860405 DOI: 10.1097/hjh.0000000000003782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
OBJECTIVE Pulmonary hypertension is a severe complication of bronchiectasis, characterized by elevated pulmonary vascular resistance (PVR) and subsequent right heart failure. The association between PVR and mortality in bronchiectasis-associated pulmonary hypertension has not been investigated previously. METHODS In the present study, a retrospective analysis was conducted on 139 consecutive patients diagnosed with bronchiectasis-associated pulmonary hypertension based on right heart catheterization, enrolled between January 2010 and June 2023. Baseline clinical characteristics and hemodynamic assessment were analyzed. The survival time for each patient was calculated in months from the date of diagnosis until the date of death or, if the patient was still alive, until their last visit. RESULTS Patients with bronchiectasis-associated pulmonary hypertension exhibited estimated survival rates of 89.5, 70, and 52.9 at 1-year, 3-year, and 5-year intervals respectively, with a median survival time of 67 months. Multivariable Cox regression analysis revealed that increased age [(adjusted hazard ratio per year 1.042, 95% confidence interval (CI) 1.008-1.076, P = 0.015] and elevated PVR (adjusted HR per 1 Wood Units 1.115, 95% CI 1.015-1.224, P = 0.023) were associated with an increased risk of all-cause mortality. In contrast, higher BMI was associated with a decreased risk of all-cause death (adjusted hazard ratio per 1 kg/m2 0.915, 95% CI 0.856-0.979, P = 0.009). Receiver-operating characteristic analyses identified a cutoff value for PVR at 4 Wood Units as predictive for all-cause death within 3 years [area under the curve (AUC) = 0.624; specificity= 87.5%; sensitivity= 35.8%; P < 0.05]. Patients with a PVR greater than 4 Wood Units had a significantly higher risk of all-cause death compared with those with 4 Wood Units or less (adjusted hazard ratio 2.392; 95% CI 1.316-4.349; P = 0.019). Notably, there were no significant differences in age, sex, BMI, WHO functional class, 6-min walk distance, and NT-proBNP levels at baseline between patients categorized as having 4 Wood Units or less or greater than 4 Wood Units for PVR. CONCLUSION Based on these data, PVR could serve as a discriminative marker for distinguishing between nonsevere pulmonary hypertension (PVR ≤ 4 Wood Units) and severe pulmonary hypertension (PVR > 4 Wood Units). The utilization of a PVR cutoff value of 4.0 Wood Units provides enhanced prognostic capabilities for predicting mortality.
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Affiliation(s)
- Jian Xu
- Department of Cardio-Pulmonary Circulation
| | - Jing-Jing Wang
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | | | | | - Wen-Hui Wu
- Department of Cardio-Pulmonary Circulation
| | - Rong Jiang
- Department of Cardio-Pulmonary Circulation
| | - Ci-Jun Luo
- Department of Cardio-Pulmonary Circulation
| | | | | | - Lan Wang
- Department of Cardio-Pulmonary Circulation
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3
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Karamooz E, Brixey AG, Rydzak CE, Primack SL, Markwardt S, Barker AF. Prevalence of pulmonary artery dilation in non-cystic fibrosis bronchiectasis: A CT analysis from a cohort of the US Bronchiectasis and Nontuberculous Mycobacteria Research Registry. RESEARCH SQUARE 2023:rs.3.rs-2711488. [PMID: 36993456 PMCID: PMC10055630 DOI: 10.21203/rs.3.rs-2711488/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Although pulmonary artery (PA) dilation is independently associated with significant morbidity and mortality in patients with pulmonary diseases irrespective of diagnosed pulmonary hypertension, its relationship to nontuberculous mycobacteria (NTM) is unknown. To determine the prevalence of PA dilation in patients with NTM-predominant non-CF bronchiectasis, we evaluated the chest computed tomography (CT) scans from 321 patient in the United States based Bronchiectasis and NTM Research Registry. The majority of our cohort had NTM infection. We measured the severity of bronchiectasis using modified Reiff criteria and measured the diameters of the PA and aorta (Ao), with PA dilation defined as a PA:Ao ratio > 0.9. Forty-two patients (13%) were found to have PA dilation. PA dilation was positively associated with the use of supplemental oxygen (p < 0.001), but there was no association between PA dilation and NTM infection.
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Affiliation(s)
- Elham Karamooz
- Oregon Health & Science University Pulmonary & Critical Care
| | - Anupama G Brixey
- Cardiothoracic Imaging Section, Department of Diagnostic Radiology, Oregon Health & Science University
| | - Chara E Rydzak
- Cardiothoracic Imaging Section, Department of Diagnostic Radiology, Oregon Health & Science University
| | - Steven L Primack
- Cardiothoracic Imaging Section, Department of Diagnostic Radiology, Oregon Health & Science University
| | - Sheila Markwardt
- Oregon Health & Science University-Portland State University School of Public Health
| | - Alan F Barker
- Oregon Health & Science University Pulmonary & Critical Care
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4
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Gao YH, Lu HW, Mao B, Guan WJ, Song YL, Li YY, Wang DX, Wang B, Gu HY, Li W, Luo H, Wang LW, Li F, Guo FX, Zhang M, Jie ZJ, Hang JQ, Yang C, Ren T, Yuan Z, Meng QW, Jia Q, Chen Y, Chen RC, Qu JM, Xu JF. The Establishment of China Bronchiectasis Registry and Research Collaboration (BE-China): Protocol of a prospective multicenter observational study. Respir Res 2022; 23:328. [PMID: 36463140 PMCID: PMC9719665 DOI: 10.1186/s12931-022-02254-9] [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: 02/08/2022] [Accepted: 11/17/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Bronchiectasis is a highly heterogeneous chronic airway disease with marked geographic and ethnic variations. Most influential cohort studies to date have been performed in Europe and USA, which serve as the examples for developing a cohort study in China where there is a high burden of bronchiectasis. The Establishment of China Bronchiectasis Registry and Research Collaboration (BE-China) is designed to: (1) describe the clinical characteristics and natural history of bronchiectasis in China and identify the differences of bronchiectasis between the western countries and China; (2) identify the risk factors associated with disease progression in Chinese population; (3) elucidate the phenotype and endotype of bronchiectasis by integrating the genome, microbiome, proteome, and transcriptome with detailed clinical data; (4) facilitate large randomized controlled trials in China. METHODS The BE-China is an ongoing prospective, longitudinal, multi-center, observational cohort study aiming to recruit a minimum of 10,000 patients, which was initiated in January 2020 in China. Comprehensive data, including medical history, aetiological testing, lung function, microbiological profiles, radiological scores, comorbidities, mental status, and quality of life (QoL), will be collected at baseline. Patients will be followed up annually for up to 10 years to record longitudinal data on outcomes, treatment patterns and QoL. Biospecimens, if possible, will be collected and stored at - 80 °C for further research. Up to October 2021, the BE-China has enrolled 3758 patients, and collected 666 blood samples and 196 sputum samples from 91 medical centers. The study protocol has been approved by the Shanghai Pulmonary Hospital ethics committee, and all collaborating centers have received approvals from their local ethics committee. All patients will be required to provide written informed consent to their participation. CONCLUSIONS Findings of the BE-China will be crucial to reveal the clinical characteristics and natural history of bronchiectasis and facilitate evidence-based clinical practice in China. Trial registration Registration Number in ClinicalTrials.gov: NCT03643653.
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Affiliation(s)
- Yong-Hua Gao
- grid.24516.340000000123704535Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Institute of Respiratory Medicine, Tongji University School of Medicine, 507 Zhengmin Road, Shanghai, 200433 China
| | - Hai-Wen Lu
- grid.24516.340000000123704535Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Institute of Respiratory Medicine, Tongji University School of Medicine, 507 Zhengmin Road, Shanghai, 200433 China
| | - Bei Mao
- grid.24516.340000000123704535Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Institute of Respiratory Medicine, Tongji University School of Medicine, 507 Zhengmin Road, Shanghai, 200433 China
| | - Wei-Jie Guan
- grid.470124.4State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuan-Lin Song
- grid.8547.e0000 0001 0125 2443Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yuan-Yuan Li
- grid.216417.70000 0001 0379 7164Department of Pulmonary and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, Hunan China
| | - Dao-Xin Wang
- grid.412461.40000 0004 9334 6536Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bin Wang
- grid.413679.e0000 0004 0517 0981Department of Pulmonary and Critical Care Medicine, Huzhou Central Hospital, Huzhou, Zhejiang China
| | - Hong-Yan Gu
- Department of Pulmonary and Critical Care Medicine, The Sixth People’s Hospital of Nantong, Nantong, Jiangsu, China
| | - Wen Li
- grid.412465.0Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang China
| | - Hong Luo
- grid.216417.70000 0001 0379 7164Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan China
| | - Ling-Wei Wang
- grid.440218.b0000 0004 1759 7210Pulmonary and Critical Care Department, Shenzhen People’s Hospital, Shenzhen Institute of Respiratory Diseases, Shenzhen, 518020 Guangdong China
| | - Fan Li
- grid.452742.2Department of Respiratory and Critical Care Medicine, Songjiang District Central Hospital, Shanghai, China
| | - Feng-Xia Guo
- grid.459495.0Department of Respiratory and Critical Care Medicine, The Eighth People’s Hospital of Shanghai, Shanghai, China
| | - Min Zhang
- grid.16821.3c0000 0004 0368 8293Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhi-Jun Jie
- grid.8547.e0000 0001 0125 2443Department of Respiratory and Critical Care Medicine, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Jing-Qing Hang
- Department of Respiratory and Critical Care Medicine, Shanghai Putuo District People’s Hospital, Shanghai, China
| | - Chao Yang
- Department of Respiratory and Critical Care Medicine, Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Tao Ren
- grid.412528.80000 0004 1798 5117Department of Respiratory and Critical Care Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Zhi Yuan
- Department of Respiratory and Critical Care Medicine, Fenghua District People’s Hospital, Ningbo, Zhejiang China
| | - Qing-Wei Meng
- Department of Respiratory and Critical Care Medicine, Shangrao People’s Hospital, Shangrao, Jiangxi China
| | - Qin Jia
- Department of Respiratory and Critical Care Medicine, Shidong Hospital of Yangpu District, Shanghai, China
| | - Yu Chen
- grid.412449.e0000 0000 9678 1884Department of Respiratory and Critical Care Medicine, Shengjing Hospital, China Medical University, Shenyang, China
| | - Rong-Chang Chen
- grid.440218.b0000 0004 1759 7210Pulmonary and Critical Care Department, Shenzhen People’s Hospital, Shenzhen Institute of Respiratory Diseases, Shenzhen, 518020 Guangdong China
| | - Jie-Ming Qu
- grid.16821.3c0000 0004 0368 8293Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200025 China
| | - Jin-Fu Xu
- grid.24516.340000000123704535Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Institute of Respiratory Medicine, Tongji University School of Medicine, 507 Zhengmin Road, Shanghai, 200433 China
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5
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Akatli AN, Ulutas H, Turkmen Samdanci E, Celik MR. Bronchiectasis: Retrospective Analysis of Clinical and Pathological Findings in a Tertiary-Care Hospital. Int J Clin Pract 2022; 2022:8773204. [PMID: 35685600 PMCID: PMC9159203 DOI: 10.1155/2022/8773204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/21/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Bronchiectasis is still a challenging chronic lung disease in developing countries. Patients with bronchiectasis can also have pulmonary hypertension. There are sparse data on the prevalence of pulmonary hypertension in patients with bronchiectasis. Materials and methods. Archived H&E-stained slides of 141 patients histopathologically diagnosed with bronchiectasis were reevaluated. Cases were categorized into 4 subgroups based on histology: tubular, varicose, follicular, and cystic. In addition, concomitant histopathological changes were also reevaluated. For patients with available CT sections, main, right, and left pulmonary artery (PA) diameters and PA/aorta ratio were measured with regard to pulmonary hypertension. RESULTS Of the cases, 70% (n = 89) were female and 30% (n = 52) were male, with a mean age of 36.58 in females and 33.84 in males. Histopathologically, 43% (n = 68) of the cases showed follicular, 37% (n = 59) showed varicose, 35% (n = 56) showed tubular, and 28% (n = 45) showed cystic bronchiectasis morphology. All cases showed chronic inflammation, fibrosis, muscle destruction, and cartilage destruction. Aspergillus were present in 11% of the cases showing cystic morphology. Approximately 17% of the cases (n = 24) were found to have neuroendocrine cell proliferations. In cases with medial hypertrophy, a statistically significant increase in the left pulmonary artery diameter was radiologically determined. CONCLUSIONS Medial hypertrophy was found to be significant with regard to indicating a radiological increase in left pulmonary artery diameter. Vascular changes observed in bronchiectasis cases and the presence of neuroendocrine cell proliferations should be specified in pathology reports, and aspergilloma should be carefully investigated in cases with predominant cystic morphology.
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Affiliation(s)
- Ayse Nur Akatli
- Department of Pathology, Inonu University School of Medicine, Malatya, Turkey
| | - Hakkı Ulutas
- Department of Thoracic Surgery, Inonu University School of Medicine, Malatya, Turkey
| | | | - Muhammet Reha Celik
- Department of Thoracic Surgery, Inonu University School of Medicine, Malatya, Turkey
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6
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Clofent D, Álvarez A, Traversi L, Culebras M, Loor K, Polverino E. Comorbidities and mortality risk factors for patients with bronchiectasis. Expert Rev Respir Med 2021; 15:623-634. [PMID: 33583300 DOI: 10.1080/17476348.2021.1886084] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Introduction: Comorbidities in patients with bronchiectasis are common and have a significant impact on clinical outcomes, contributing to lower quality of life, lung function, and exacerbation frequency. At least 13 comorbidities have been associated with a higher risk of mortality in bronchiectasis patients. Nonetheless, the kind of relationship between bronchiectasis and comorbidities is heterogeneous and poorly understood.Areas covered: different biological mechanisms leading to bronchiectasis could have a role in the development of the associated comorbidities. Some comorbidities could have a causal relationship with bronchiectasis, possibly through a variable degree of systemic inflammation, such as in rheumatic disorders and bowel inflammatory diseases. Other comorbidities, such as COPD or asthma, could be associated through airway inflammation and there is an uncertain cause-effect relationship. Finally, shared risk factors could link different comorbidities to bronchiectasis such as in the case of cardiovascular diseases, where the known link between chronic systemic inflammation and pulmonary infection could play a significant role.Expert opinion: Although different tools have been developed to assess the role of comorbidities in bronchiectasis , we believe that the implementation of current strategies to manage them is absolutely necessary and could significantly improve long-term prognosis in patients with bronchiectasis.
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Affiliation(s)
- David Clofent
- Vall d'Hebron Institute of Research (VHIR) - Respiratory Disease Department, Hospital Universitari Vall d'Hebron (HUVH) Passeig Vall d'Hebron, 119-129, Barcelona, Spain.,Respiratory Diseases, Vall d'Hebron University Hospital, Barcelona, Catalunya, Spain
| | - Antonio Álvarez
- Vall d'Hebron Institute of Research (VHIR) - Respiratory Disease Department, Hospital Universitari Vall d'Hebron (HUVH) Passeig Vall d'Hebron, 119-129, Barcelona, Spain.,Respiratory Diseases, Vall d'Hebron University Hospital, Barcelona, Catalunya, Spain
| | - Letizia Traversi
- Department of Medicine and Surgery, Respiratory Diseases, Università dell'Insubria, Varese, Italy
| | - Mario Culebras
- Vall d'Hebron Institute of Research (VHIR) - Respiratory Disease Department, Hospital Universitari Vall d'Hebron (HUVH) Passeig Vall d'Hebron, 119-129, Barcelona, Spain.,Respiratory Diseases, Vall d'Hebron University Hospital, Barcelona, Catalunya, Spain
| | - Karina Loor
- Vall d'Hebron Institute of Research (VHIR) - Respiratory Disease Department, Hospital Universitari Vall d'Hebron (HUVH) Passeig Vall d'Hebron, 119-129, Barcelona, Spain.,Respiratory Diseases, Vall d'Hebron University Hospital, Barcelona, Catalunya, Spain
| | - Eva Polverino
- Vall d'Hebron Institute of Research (VHIR) - Respiratory Disease Department, Hospital Universitari Vall d'Hebron (HUVH) Passeig Vall d'Hebron, 119-129, Barcelona, Spain.,Respiratory Diseases, Vall d'Hebron University Hospital, Barcelona, Catalunya, Spain
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7
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Yuan JJ, Li HM, Huang Y, Han XR, Gao YH, Zhong NS, Martinez-Garcia MA, Guan WJ. Decreased ventilatory efficiency during incremental exercise in bronchiectasis. J Thorac Dis 2020; 12:2717-2723. [PMID: 32642180 PMCID: PMC7330375 DOI: 10.21037/jtd.2020.03.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jing-Jing Yuan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Hui-Min Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Yan Huang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Xiao-Rong Han
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Yong-Hua Gao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Nan-Shan Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | | | - Wei-Jie Guan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
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8
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Diaz AA, Maselli DJ, Rahaghi F, Come CE, Yen A, Maclean ES, Okajima Y, Martinez CH, Yamashiro T, Lynch DA, Wang W, Kinney GL, Washko GR, San José Estépar R. Pulmonary vascular pruning in smokers with bronchiectasis. ERJ Open Res 2018; 4:00044-2018. [PMID: 30480001 PMCID: PMC6250564 DOI: 10.1183/23120541.00044-2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 10/07/2018] [Indexed: 12/14/2022] Open
Abstract
There are few studies looking at the pulmonary circulation in subjects with bronchiectasis. We aimed to evaluate the intraparenchymal pulmonary vascular structure, using noncontrast chest computed tomography (CT), and its clinical implications in smokers with radiographic bronchiectasis. Visual bronchiectasis scoring and quantitative assessment of the intraparenchymal pulmonary vasculature were performed on CT scans from 486 smokers. Clinical, lung function and 6-min walk test (6MWT) data were also collected. The ratio of blood vessel volume in vessels <5 mm2 in cross-section (BV5) to total blood vessel volume (TBV) was used as measure of vascular pruning, with lower values indicating more pruning. Whole-lung and lobar BV5/TBV values were determined, and regression analyses were used to assess the differences in BV5/TBV between subjects with and without bronchiectasis. 155 (31.9%) smokers had bronchiectasis, which was, on average, mild in severity. Compared to subjects without bronchiectasis, those with lower-lobe bronchiectasis had greater vascular pruning in adjusted models. Among subjects with bronchiectasis, those with vascular pruning had lower forced expiratory volume in 1 s and 6MWT distance compared to those without vascular pruning. Smokers with mild radiographic bronchiectasis appear to have pruning of the distal pulmonary vasculature and this pruning is associated with measures of disease severity. Smokers with radiographic bronchiectasis haveintraparenchymal pulmonary vascular pruning, which is associated with both lung function and exercise capacity impairmenthttp://ow.ly/YCYm30mgV7z
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Affiliation(s)
- Alejandro A Diaz
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Diego J Maselli
- Division of Pulmonary Diseases and Critical Care, University of Texas Health Science Center, San Antonio, TX, USA
| | - Farbod Rahaghi
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Carolyn E Come
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrew Yen
- Dept of Radiology, University of California, San Diego, CA, USA
| | - Erick S Maclean
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Yuka Okajima
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Carlos H Martinez
- Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, MI, USA
| | - Tsuneo Yamashiro
- Dept of Radiology, Graduate School of Medical Science, University of the Ryukyus, Nishihara, Japan
| | - David A Lynch
- Dept of Radiology, National Jewish Health, Denver, CO, USA
| | - Wei Wang
- Division of Sleep Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Gregory L Kinney
- Colorado School of Public Health, University of Colorado Denver, Aurora, CO, USA
| | - George R Washko
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Raúl San José Estépar
- Dept of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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