VASOMOTOR TONE IN THE PULMONARY VASCULAR BED IN PATIENTS WITH LEFT-TO-RIGHT SHUNTS

The prevalence of right to left shunt in chronic obstructive pulmonary disease patients with increased pulmonary hypertension

Background: One of the important etiologies for cryptogenic stroke is paradoxical embolization secondary to Patent Foramen Ovale (PFO). Foramen ovale can secondarily reopen due to Pulmonary Arterial Hypertension (PAH) which is common among the older age. PAH is known as a frequent and life threatening complication of COPD. The aim of this study was to determine the prevalence of PFO between COP...

Changes in Pulmonary Vascular Resistance in Infants and Children with Left-to-right Intracardiac Shunts.

The effect of exercise in the supine position on pulmonary vascular dynamics in patients with left-to-right shunts.

The effects of surgical abolition of left-to-right shunts on the pulmonary vascular dynamics of patients with pulmonary hypertension.

AN IMPORTANT deficiency in our knowledge of congenital heart disease is the lack of detailed information concerning the effects of corrective surgery on the pulmonary vascular bed in patients with pulmonary hypertension. It is now well established that operation in such patients is associated with a substantially higher mortality and morbidity than in patients with similar anatomic lesions but ...

Left-to-Right Shunts

Contrary to the opinion of French pediatrician HenriLouis that isolated ventricular septal defects (VSDs) are universally well tolerated, the subsequent discoveries of Eisenmenger, Abbott, Wood, and others have taught us that the prognosis of left-to-right shunt lesions is not always benign. After more than a century of research, as pediatric cardiologists and congenital heart surgeons, we clai...