Pulmonary hypertension can be classified into 4 categories: pulmonary arterial hypertension (PAH), pulmonary venous hypertension, pulmonary hypertension associated with hypoxemia, and pulmonary hypertension due to chronic thrombotic or embolic disease. PAH is a progressive and often fatal condition that predominantly affects women. Approximately 10% of patients diagnosed with PAH without a demo...

first case of HIV-associated pulmonary hypertension [1]. Since then more than 131 cases have been described in the literature [2]. For this reason, HIV-associated pulmonary hypertension has been included as a definite cause of precapillary pulmonary hypertension according to the executive summary of the World Health Organization (WHO) [3]. The incidence of HIV-associated pulmonary hypertension ...

The loss of pulmonary vessels has been shown to be related to the severity of pulmonary hypertension in patients with chronic obstructive pulmonary disease (COPD). The severity of hypoxaemia is also related to pulmonary hypertension and pulmonary vascular resistance in these patients, suggesting that the hypoxic condition probably plays an important role in this form of pulmonary hypertension. ...

INTRODUCTION AND OBJECTIVES Pulmonary arterial hypertension carries a poor prognosis in both adult and pediatric patients. Current understanding of the mechanisms underlying pulmonary arterial hypertension has enabled the rapid development of appropriate drugs, such as endothelin receptor antagonists and 5-phosphodieste-rase inhibitors, that can be administered orally and which are generally we...

STUDY OBJECTIVES Although in situ thrombosis is a prominent finding in lung vessels from patients with primary and secondary pulmonary hypertension, to our knowledge, plasma coagulation factors that might contribute to a hypercoagulable state have not been fully investigated. We hypothesized that the local coagulation environment in the lung vasculature is important to progression if not initia...

Porto-pulmonary hypertension is a known complication of liver cirrhosis but its association with noncirrhotic portal hypertension patients is rare. We report a case of pulmonary hypertension in a patient with noncirrhotic portal hypertension and scleroderma sine scleroderma. The two latter conditions have been shown to be independently associated with pulmonary arterial hypertension. DLCO is ex...

To purchase reprints, contact The InnoVision Group, 101 Columbia, Aliso Viejo, CA 92656. Phone, (800) 8092273 or (949) 362-2050 (ext 532); fax, (949) 362-2049; e-mail, [email protected]. ing from disorders that affect the pulmonary vasculature. Before the World Health Organization reclassification, the aforementioned categories were referred to as secondary pulmonary hypertension. Patients with...

Investigations of the effect of pharmacological preparations on pulmonary hypertension in man are important for several reasons: from the potential therapeutic aspect; because these data may help to elucidate the regulation of pressure in the pulmonary artery; and finally because they may show whether pulmonary hypertension is reversible or irreversible. While the effect of reserpine on hyperte...

M ore than 50 yrs ago, DRESDALE et al. [1] reported a series of 39 patients with unexplained pulmonary hypertension and coined the term ‘‘primary pulmonary hypertension’’ to describe the condition, a term that has been revised to ‘‘idiopathic pulmonary arterial hypertension’’ in the most recent classification [2]. Idiopathic pulmonary arterial hypertension is a disease of the small pulmonary ar...

Six young women who had taken progestational agents for a period of time ranging from six months to five years developed symptoms and signs of pulmonary hypertension. Cardiac catheterization confirmed the presence of severe pulmonary hypertension without evidence of other cardiac or pulmonary abnormalities to explain this phenomenon. Three of the patients had potential predispositions to pulmon...