The Pulmonary Capillary Bed in Various Forms of Pulmonary Hypertension

The pulmonary capillary bed in various forms of pulmonary hypertension.

IN A PREVIOUS STUDY of the pulmonary capillary bed in mitral valve disease,' the mean value for pulmonary diffusing capacity for carbon monoxide (DL) was found to be significantly lower than normal, in agreement with several other reports.2 7 This was due mainly to impairment of the membrane diffusing capacity (DM). Reduction in pulmonary capillary blood volume (V,) was found only in patients w...

Pulmonary capillary pressure in pulmonary hypertension

INTRODUCTION Pulmonary capillary pressure (PCP), together with the time constants of the various vascular compartments, define the dynamics of the pulmonary vascular system. Our objective in the present study was to estimate PCPs and time constants of the vascular system in patients with idiopathic pulmonary arterial hypertension (IPAH), and compare them with these measures in patients with acu...

Pulmonary Capillary Leak Syndrome

Evaluation of Pulmonary Hypertension In First Degree Relatives Of Patients With Primary Pulmonary Hypertension

Background: Pulmonary hypertension (PH) was defined for the first time in 1951 as primary pulmonary hypertension (PPH). Some studies emphasized on the role of genetics in the development of pulmonary hypertension in family members of affected patients. So, in this study we evaluated the prevalence of pulmonary hypertension in first degree family of patients with documented PPH. Methods: In thi...

Pulmonary capillary hemangiomatosis with severe pulmonary hypertension.

Pulmonary capillary hemangiomatosis (PCH) is a rare idiopathic lung disorder that occurs in young patients and leads to pulmonary hypertension (PH). It is difficult to diagnosis in the early stage and is often mistaken for primary PH; in almost all cases of PCH, the correct diagnosis is not made until autopsy. In the present case of PCH, the patient had severe pulmonary hypertension and died of...