The influence of gravity on the distributions of ventilation and blood flow, as demonstrated by the effects of posture, is discussed and explained on the theoretical basis of gravitational gradients ...

Introduction and aims: BPD is the most common chronic lung disease in infancy causing substantional morbidity. It is currently graded at 36 weeks according to the need for supplemental oxygen and/or ...

Hypoxemia is defined as a condition where arterial oxygen tension or partial pressure of oxygen (PaO2) is below the normal value, which is typically between 80 and 100 mmHg. Alveolar ventilation is ...

Educating physicians about ventilation-perfusion scanning as an alternative to CT for the diagnosis of pulmonary embolisms led to a 23 percent decrease in patient exposure, according to a study ...

MDCT pulmonary angiography is replacing the ventilation-perfusion lung scan to diagnose suspected pulmonary embolism in hospitalized patients, say researchers from Rhode Island Hospital in Providence.

THE association of Laënnec's cirrhosis with arterial oxygen unsaturation has been recognized but not satisfactorily explained. We have previously reported observations on a patient with Laënnec's ...

THE present study was undertaken to determine if the pattern of ventilation, by itself, may influence oxygenation during anesthesia and surgery. The hypothesis was examined that progressive pulmonary ...