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1. 肺動静脈奇形：成人における臨床的特徴および診断的評価pulmonary arteriovenous malformations clinical features and diagnostic evaluation in adults [show details]
…PAVMs, shunt blood directly from the pulmonary artery to the pulmonary vein such that shunted blood is poorly oxygenated. TTCE is the test of first choice for the evaluation of a right-to-left shunt due to …
2. 成人の肝肺症候群：有病率、原因、臨床症状、診断hepatopulmonary syndrome in adults prevalence causes clinical manifestations and diagnosis [show details]
…if present, platypnea/orthodeoxia is supportive of HPS but not diagnostic. IPVDs act as physiologic shunts that allow a higher than usual volume of pulmonary arterial blood to bypass the alveoli for …
3. 左右シャントの病態生理pathophysiology of left to right shunts [show details]
…with left-to-right shunt, blood from the systemic arterial circulation mixes with systemic venous blood. Multiple factors influence the extent of flow through the shunt and its physiologic effects. The pathophysiology …
4. 液体呼吸liquid ventilation [show details]
…recruiting the atelectatic, consolidated, dependent regions of the lungs that contribute to the physiologic shunt observed during gas ventilation. Pulmonary blood flow is also redistributed to less severely …
5. 機械的人工換気の生理学的および病理生理学的転帰physiologic and pathophysiologic consequences of mechanical ventilation [show details]
… and shunt (areas that are underventilated relative to perfusion; V<Q). By increasing ventilation (V), the institution of positive pressure ventilation will worsen dead space but improve shunt.… airways and the resulting pressure gradient causes airflow into the small airways and alveoli. Physiologic and pathophysiologic consequences of positive pressure ventilation are discussed in this topic …