Why the study?
What are the hemodynamic alterations and mechanisms of pulmonary and systemic responses to acute pulmonary thromboembolism in a dog model?
Population
Dogs (experimental model)
Design
Preclinical
Authors
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Highlights reflex vasoconstriction in experimental embolism; hypothesis-generating and requires human validation before clinical consideration.
What are the hemodynamic alterations and mechanisms of pulmonary and systemic responses to acute pulmonary thromboembolism in a dog model?
Initial pulmonary hemodynamic changes following acute thromboembolism are primarily driven by reflex vasoconstriction, whereas mechanical blockage causes sustained pulmonary hypertension only after massive or repeated embolism.
Parmley et al. (1962) studied this question.
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