pulmonary vascular resistance उदाहरण वाक्य
उदाहरण वाक्य
- Stage 2 of the Norwood procedure is separation of the systemic and pulmonary circulation once pulmonary vascular resistance has fallen, by removing the aortopulmonary shunt followed by creation of a bidirectional SVC-pulmonary shunt, also known as a Glenn procedure.
- Inhaled nitric oxide vasodilates, decreasing pulmonary arterial pressure ( PAP ) and pulmonary vascular resistance ( PVR ) without affecting systemic artery pressure because it is rapidly inactivated by hemoglobin, and improves oxygenation by redistributing pulmonary blood flow to ventilated areas of lung.
- Several factors inhibit this process including increased cardiac output, hypocapnia, hypothermia, acidosis / alkalosis, increased pulmonary vascular resistance, inhaled anesthetics, calcium channel blockers, positive end-expiratory pressure ( PEEP ), high-frequency ventilation ( HFV ), isoproterenol, nitric oxide, and vasodilators.
- Since the right ventricle generates far lower pressures than the left ventricle ( approximately 20 mmHg versus around 120 mmHg, respectively, in the healthy individual ) but nonetheless generates cardiac output exactly equal to the left ventricle, this means that a small increase in pulmonary vascular resistance causes a large increase in amount of work the right ventricle must perform.