Pulmonary Hypertension in Parenchymal Lung Disease (original) (raw)
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Pulmonary hypertension in the interstitial lung diseases
CHEST Journal, 1985
In the lungs, parenchymal and vascular remodelling share pathomechanisms that may explain the relatively high prevalence (30-40%) of pulmonary hypertension (PH) in interstitial lung disease (ILD) patients. Notably, PH significantly contributes to exercise limitation and dismal prognosis of ILD patients. The absence of specific clinical symptoms commonly leads to delayed diagnosis. Besides clinical judgment and out-of-proportion reduction in diffusing capacity, severe hypoxaemia or exercise oxygen desaturation, echocardiography and biomarkers such as B-type natriuretic peptide (BNP) and N-terminal pro-hormone BNP are potentially helpful tools in identifying PH. However, right heart catheterisation is still necessary to confirm the diagnosis. Management of PH in ILD comprises treatment of the underlying disease process and long-term oxygen therapy. Affected patients should be listed for lung transplantation without delay, when appropriate. However, due to age and comorbidities only a minority of ILD patients will be eligible for lung transplantation. In the absence of satisfactory therapies for many ILDs, and considering the clinical burden of PH in affected patients, specific vasomodulatory therapies presently approved for PAH may be promising options for ILD patients. Consequently, there is an urgent need for adequately designed clinical trials to assess the effectiveness of specific PH therapy in the context of ILDs.
Pulmonary hypertension in chronic obstructive and interstitial lung diseases
International Journal of Cardiology, 2013
The purpose of the present review is to summarize the current knowledge on PH in relation to COPD and ILD from a clinical perspective with emphasis on diagnosis, biomarkers, prevalence, impact, treatment, and practical implications. PH in COPD and ILD is associated with a poor prognosis, and is considered one of the most frequent types of PH. However, the prevalence of PH among patients with COPD and ILD is not clear. The diagnosis of PH in chronic lung disease is often established by echocardiographic screening, but definitive diagnosis requires right heart catheterization, which is not systematically performed in clinical practice. Given the large number of patients with chronic lung disease, biomarkers to preclude or increase suspicion of PH are needed. NT-proBNP may be used as a rule-out test, but biomarkers with a high specificity for PH are still required. It is not known whether specific treatment with existent drugs effective in pulmonary arterial hypertension (PAH) is beneficial in lung disease related PH. Studies investigating existing PAH drugs in animal models of lung disease related PH have indicated a positive effect, and so have case reports and open label studies. However, treatment with systemically administered pulmonary vasodilators implies the risk of worsening the ventilation-perfusion mismatch in patients with lung disease. Inhaled vasodilators may be better suited for PH in lung disease, but new treatment modalities are also required.
Pulmonary hypertension in interstitial lung disease
European Respiratory Journal, 2008
In the lungs, parenchymal and vascular remodelling share pathomechanisms that may explain the relatively high prevalence (30-40%) of pulmonary hypertension (PH) in interstitial lung disease (ILD) patients. Notably, PH significantly contributes to exercise limitation and dismal prognosis of ILD patients. The absence of specific clinical symptoms commonly leads to delayed diagnosis. Besides clinical judgment and out-of-proportion reduction in diffusing capacity, severe hypoxaemia or exercise oxygen desaturation, echocardiography and biomarkers such as B-type natriuretic peptide (BNP) and N-terminal pro-hormone BNP are potentially helpful tools in identifying PH. However, right heart catheterisation is still necessary to confirm the diagnosis. Management of PH in ILD comprises treatment of the underlying disease process and long-term oxygen therapy. Affected patients should be listed for lung transplantation without delay, when appropriate. However, due to age and comorbidities only a minority of ILD patients will be eligible for lung transplantation. In the absence of satisfactory therapies for many ILDs, and considering the clinical burden of PH in affected patients, specific vasomodulatory therapies presently approved for PAH may be promising options for ILD patients. Consequently, there is an urgent need for adequately designed clinical trials to assess the effectiveness of specific PH therapy in the context of ILDs.
Pulmonary Hypertension in Chronic Obstructive Pulmonary Disease and Interstitial Lung Diseases
Seminars in Respiratory and Critical Care Medicine, 2009
Pulmonary hypertension (PH) related to chronic obstructive pulmonary disease (COPD) is part of Group III, as defined by the World Health Organization (WHO), which comprises the group of PH associated with lung disorders and hypoxemia, such as COPD, interstitial lung disease, sleep disordered breathing, and high altitude PH. Similar to other types of PH complicating various disorders, PH associated with COPD confers a poor prognosis. While PH associated with COPD has been a well-recognized entity, only recently has attention been focused toward understanding the epidemiology and characteristics of this form of PH. In this issue, we will examine characteristics of PH in COPD, describe similarities and differences with other forms of PH, and present current recommendations for diagnosis and management.
Pulmonary therapy, 2024
Introduction: The pathogenesis and clinical profiles of patients with pulmonary hypertension (PH) associated with interstitial lung disease (ILD-PH) are poorly understood. Whether and to what extent pulmonary arterial hypertension (PAH)-specific therapy improves hemodynamic and outcome in ILD-PH are also unknown. Study Objective: This study aims to clarify the characteristics, clinical course and response to PAH-specific therapy of ILD and/or PH by enrolling three unique subsets: PAH, ILD-PH, and ILD. Methods: The proposed study is a retrospective and prospective, multi-centre, observational cohort study of patients treated at any of three university hospitals in the Hokkaido region of Japan who have any one of the following: PAH; ILD-PH with or without PAH features; or ILD without PH. We aim to enrol 250 patients in total. For the retrospective observation period, data obtained after 1 January 2010, will be analysed, and the prospective observation period will be 1 year. We will compare the clinical data of patients with ILD-PH with those of patients with PAH and those of patients with ILD without PH in the real-world clinical setting. In addition, within the cohort of patients with ILD-PH, we will explore the subset with "ILD-PH with PAH features" and compare the response to PAHspecific therapy with that of PAH. The primary outcome will be the change in pulmonary vascular resistance from first treatment to followup in patients with PAH and ILD-PH with PAH features (excluding ILD-PH without PAH feature and ILD-no-PH for the primary outcome). The exploratory outcomes will include analyses of PH-associated biomarkers, right ventricular function and patient-reported outcomes. Results: This is a protocol article and the results will be presented after data collection is completed. Conclusion: The POPLAR study will provide data that help better understand the pathophysiology of ILD-PH and improve the quality of life and outcome of patients with PH and/or ILD.
European Respiratory Journal, 2020
There are limited published data defining survival and treatment response in patients with mild lung disease and/or reduced gas transfer who fulfil diagnostic criteria for idiopathic pulmonary arterial hypertension (IPAH).Patients diagnosed with IPAH between 2001 and 2019 were identified in the ASPIRE (Assessing the Spectrum of Pulmonary Hypertension Identified at a Referral Centre) registry. Using prespecified criteria based on computed tomography (CT) imaging and spirometry, patients with a diagnosis of IPAH and no lung disease were termed IPAHno-LD (n=303), and those with minor/mild emphysema or fibrosis were described as IPAHmild-LD (n=190).Survival was significantly better in IPAHno-LD than in IPAHmild-LD (1- and 5-year survival 95% and 70% versus 78% and 22%, respectively; p<0.0001). In the combined group of IPAHno-LD and IPAHmild-LD, independent predictors of higher mortality were increasing age, lower diffusing capacity of the lung for carbon monoxide (DLCO), lower exerci...
Pulmonary arterial hypertension
2004
ulmonary hypertension is usually classified as primary (idiopathic) or secondary. 1 It is now clear, however, that there are conditions within the category of secondary pulmonary hypertension that resemble primary pulmonary hypertension in their histopathological features and their response to treatment. For this reason, the World Health Organization (WHO) classified pulmonary hypertension into five groups on the basis of mechanisms, rather than associated conditions ). The most recent revision of the WHO classification uses consistent terminology and defines pulmonary hypertension more precisely than previous versions. 2 Group I of the WHO classification, designated pulmonary arterial hypertension, is the principal focus of this review.
Spectrum of interstitial lung diseases and their association with pulmonary hypertension
Monaldi archives for chest disease, 2021
Interstitial lung diseases (ILDs) are an intriguing group of pulmonary disorders, which still require the study of epidemiological, genetic, pathophysiological, clinical, and radiological parameters. Pulmonary hypertension (PH) is an underreported complication in interstitial lung diseases which is associated with worse outcome. In our study, we have reported the spectrum of ILDs and estimated the prevalence of pulmonary hypertension among these subjects at a tertiary care center. A cross-sectional study was performed in which demographical, clinical, radiological, and histological data of subjects with ILD, attending the Department of Respiratory Medicine in the University was collected from 1 st September 2018 to 31 st August 2019. Serological tests were done wherever indicated. Standard criteria along with multidisciplinary opinion were needed to arrive at the final diagnosis. All subjects were screened for pulmonary hypertension via 2-D echocardiography. Mean pulmonary artery pressure ≥20 mmHg was used to define PH. In the defined period, 239 subjects were enrolled (58% females, n=141; mean age 52.38±13.40 years). A tissue diagnosis was obtained in 34% cases. The most common ILD was hypersensitivity pneumonitis (32.2%), followed by autoimmune-ILD (31.4%), idiopathic pulmonary fibrosis (IPF) (15.9%) and sarcoidosis (12.6%), non-IPF idiopathic interstitial pneumonitis (2.1%) and rest 21 (5.9%) subjects were diagnosed as other types of ILD. Pulmonary hypertension was seen in 46.0% of subjects.
Journal of Clinical Medicine, 2016
Pulmonary hypertension (PH) due to chronic respiratory disease and/or hypoxia is classified as World Health Organization (WHO) Group III pulmonary hypertension. The patients most commonly encountered in clinical practice with group III PH include those with chronic obstructive lung disease (COPD), diffuse parenchymal lung disease, and sleep-disordered breathing. The purpose of this review is to outline the variable clinical significance of pulmonary hypertension in the most common pulmonary disease states and how a clinician may approach the management of these patients.
More on idiopathic pulmonary arterial hypertension with a low diffusing capacity
The European respiratory journal, 2017
Pulmonary arterial hypertension (PAH) is defined by the presence of pre-capillary pulmonary hypertension (PH) in the absence of underlying causes such as lung diseases, chronic thromboembolic pulmonary hypertension (CTEPH) or other rare conditions [1, 2]. While the idiopathic form of PAH (IPAH) was originally described as a disease affecting primarily younger women [3, 4], it is now increasingly being diagnosed in elderly patients, many of whom present with cardiopulmonary comorbidities, which can make the exact diagnostic classification of such patients difficult [5-8].