Postural Dependency of Right to Left Shunt

Right-to-Left Shunt

The patient is a 25-year-old woman transferred to Hermann Hospital 3 days after admission to an outlying facility. The patient initially woke up at 3 AM with acute onset of nausea, mild headache, hemoptysis (1⁄4/4 cup of fresh blood), and worsening shortness of breath. She then noticed weakness in the right half of her body associated with dysarthria. She had no associated chest pain or palpita...

Postural dependency of right to left shunt: role of contrast-enhanced transcranial Doppler and its potential clinical implications.

BACKGROUND AND PURPOSE Right to left shunt is involved in conditions in which postural changes may be pathogenically relevant. The aim of this work was to assess the frequency of posturally dependent right to left shunt. METHODS In 109 consecutive right to left shunt-positive subjects (male/female=40/69, age 43+/-12 years), we assessed with contrast-enhanced transcranial Doppler the bubble lo...

Postpneumonectomy interatrial right-to-left shunt.

Comparison of High and Low Doses of Captopril in the Treatment of Neonates with Left-to-Right Shunt

Introduction: Due to the significant differences between the physiology and pathology of adults and neonates, clinical guidelines for adults are not directly applicable to children. This study was performed to evaluate the effects of high- and low- dose captopril on the neonates with large left-to-right shunts. Methods: The study was conducted on 20 neonates with congenital heart disease, left-...

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...