Pulmonary vasoconstriction following intravenous nimodipine
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چکیده
منابع مشابه
Pulmonary Vasoconstriction
I AHPR = acute hypoxic pressor response T he pulmonary circulation responds to acute hypoxia with increases in pulmonary artery pressure and vascular resistance. This acute hypoxic pressor response (AHPR) is a unique physiologic feature distinguishing the pulmonary from the systemic circulation which dilates in response to hypoxia.’ Since Von Euler and Liljestrand described the phenomenon of ac...
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Bacterial endotoxins stimulate endothelin-mediated, thromboxane-dependent increases in pulmonary vascular resistance in mammals, and thromboxane has been shown to cause an immediate but transient pulmonary vasoconstriction in broiler chickens. In the present study, i.v. injections of 1 mg endotoxin into anesthetized male broilers caused a pulmonary vasoconstrictive response that was delayed in ...
متن کاملHypoxic pulmonary vasoconstriction.
Humans encounter hypoxia throughout their lives. This occurs by destiny in utero, through disease, and by desire, in our quest for altitude. Hypoxic pulmonary vasoconstriction (HPV) is a widely conserved, homeostatic, vasomotor response of resistance pulmonary arteries to alveolar hypoxia. HPV mediates ventilation-perfusion matching and, by reducing shunt fraction, optimizes systemic Po(2). HPV...
متن کاملExercise induced pulmonary vasoconstriction.
Pulmonary vascular resistance normally falls or remains unchanged during exercise. Seven children with pulmonary hypertension were exercised during cardiac catheterisation after operative correction of ventricular septal defect (6) and truncus arteriosus (1). Except for the presence of moderate pulmonary hypertension, resting haemodynamics in these seven children were similar to those of normal...
متن کاملHypoxic pulmonary vasoconstriction.
Hypoxic pulmonary vasoconstriction is a local reflex in the lung that diverts blood away from poorly oxygenated regions. Improvements in understanding of modulators of this response have led to pharmacologic methods whereby V/Q matching may potentially be improved in certain types of pulmonary pathology and during anesthesia for thoracic surgical procedures.
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 1992
ISSN: 0003-2409,1365-2044
DOI: 10.1111/j.1365-2044.1992.tb02223.x