Book contents
- Frontmatter
- Dedication
- Contents
- Contents
- Contributors
- Foreword to the First Edition
- Preface to the Sixth Edition
- Acknowledgements
- Chapter 1 The normal lung: histology, embryology, development, aging and function
- Chapter 2 Lung specimen handling and practical considerations
- Chapter 3 Congenital abnormalities and pediatric lung diseases, including neoplasms
- Chapter 4 Pulmonary bacterial infections
- Chapter 5 Pulmonary viral infections
- Chapter 6 Pulmonary mycobacterial infections
- Chapter 7 Pulmonary mycotic infections
- Chapter 8 Pulmonary parasitic infections
- Chapter 9 Acute lung injury
- Chapter 10 Interstitial lung diseases
- Chapter 11 Metabolic and inherited connective tissue disorders involving the lung
- Chapter 12 Hypersensitivity pneumonitis
- Chapter 13 Sarcoidosis
- Chapter 14 Occupational lung disease
- Chapter 15 Eosinophilic lung disease
- Chapter 16 Drug- and therapy-induced lung injury
- Chapter 17 Chronic obstructive pulmonary disease and diseases of the airways
- Chapter 18 Pulmonary vascular pathology
- Chapter 19 Pulmonary vasculitis and pulmonary hemorrhage syndromes
- Chapter 20 The pathology of lung transplantation
- Chapter 21 The lungs in connective tissue disease
- Chapter 22 Benign epithelial neoplasms and tumor-like proliferations of the lung
- Chapter 23 Pulmonary pre-invasive disease
- Chapter 24 Epidemiological and clinical aspects of lung cancer
- Chapter 25 Lung cancer staging
- Chapter 26 Immunohistochemistry in the diagnosis of pulmonary tumors
- Chapter 27 Adenocarcinoma of the lung
- Chapter 28 Squamous cell carcinoma of the lung
- Chapter 29 Large cell carcinoma and adenosquamous carcinoma of the lung
- Chapter 30 Salivary gland neoplasms of the lung
- Chapter 31 Neuroendocrine tumors and other neuroendocrine proliferations of the lung
- Chapter 32 Sarcomatoid carcinomas and variants
- Chapter 33 Mesenchymal and miscellaneous neoplasms
- Chapter 34 Pulmonary lymphoproliferative diseases
- Chapter 35 Metastases involving the lungs
- Chapter 36 Diseases of the pleura
- Index
- References
Chapter 18 - Pulmonary vascular pathology
Published online by Cambridge University Press: 05 June 2014
- Frontmatter
- Dedication
- Contents
- Contents
- Contributors
- Foreword to the First Edition
- Preface to the Sixth Edition
- Acknowledgements
- Chapter 1 The normal lung: histology, embryology, development, aging and function
- Chapter 2 Lung specimen handling and practical considerations
- Chapter 3 Congenital abnormalities and pediatric lung diseases, including neoplasms
- Chapter 4 Pulmonary bacterial infections
- Chapter 5 Pulmonary viral infections
- Chapter 6 Pulmonary mycobacterial infections
- Chapter 7 Pulmonary mycotic infections
- Chapter 8 Pulmonary parasitic infections
- Chapter 9 Acute lung injury
- Chapter 10 Interstitial lung diseases
- Chapter 11 Metabolic and inherited connective tissue disorders involving the lung
- Chapter 12 Hypersensitivity pneumonitis
- Chapter 13 Sarcoidosis
- Chapter 14 Occupational lung disease
- Chapter 15 Eosinophilic lung disease
- Chapter 16 Drug- and therapy-induced lung injury
- Chapter 17 Chronic obstructive pulmonary disease and diseases of the airways
- Chapter 18 Pulmonary vascular pathology
- Chapter 19 Pulmonary vasculitis and pulmonary hemorrhage syndromes
- Chapter 20 The pathology of lung transplantation
- Chapter 21 The lungs in connective tissue disease
- Chapter 22 Benign epithelial neoplasms and tumor-like proliferations of the lung
- Chapter 23 Pulmonary pre-invasive disease
- Chapter 24 Epidemiological and clinical aspects of lung cancer
- Chapter 25 Lung cancer staging
- Chapter 26 Immunohistochemistry in the diagnosis of pulmonary tumors
- Chapter 27 Adenocarcinoma of the lung
- Chapter 28 Squamous cell carcinoma of the lung
- Chapter 29 Large cell carcinoma and adenosquamous carcinoma of the lung
- Chapter 30 Salivary gland neoplasms of the lung
- Chapter 31 Neuroendocrine tumors and other neuroendocrine proliferations of the lung
- Chapter 32 Sarcomatoid carcinomas and variants
- Chapter 33 Mesenchymal and miscellaneous neoplasms
- Chapter 34 Pulmonary lymphoproliferative diseases
- Chapter 35 Metastases involving the lungs
- Chapter 36 Diseases of the pleura
- Index
- References
Summary
Introduction
Pulmonary hypertension is defined as a sustained mean pulmonary arterial pressure at rest of ≥ 25 mmHg, i.e., elevated significantly above the upper limit of normal (20 mmHg). Typically, pulmonary arterial pressure increases during exercise. In pulmonary hypertension, this increase is disproportionately high. The pressure is measured by right heart catheterization or can be estimated by echocardiography.
Pulmonary hypertension is a consequence of right ventricular adaptation to increased vascular resistance, increased pulmonary blood flow, or a combination of both. Initially, the symptoms of pulmonary hypertension are nonspecific and usually limited to dyspnea, particularly on exertion, or patients may be asymptomatic. As the pulmonary hypertension progresses, signs and symptoms of right-sided heart failure develop; namely peripheral edema, fatigue, abdominal fullness, angina pectoris and syncope. Depending on its cause, severity and possible treatment options, pulmonary hypertension may lead to death.
Pulmonary hypertension is a feature of a heterogeneous group of disorders which differ in risk factor profile, initiating factors, response to treatment and prognosis (Table 1).4,5 Among the causal factors, left ventricular failure and mitral valve insufficiency are the commonest, followed by chronic thromboembolic disease.6 Globally, there are marked variations in prevalence of some important causes and risk factors, especially sickle cell disease, chronic schistosomiasis and HIV-AIDS.
- Type
- Chapter
- Information
- Spencer's Pathology of the Lung , pp. 661 - 710Publisher: Cambridge University PressPrint publication year: 2000
References
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