【獸醫師考-認同按讚】評論

高山上缺氧，而缺氧會導致血管內皮受損(李崇道老師獸醫病理學P.139)，血管內皮受損會引起血栓造成肺高壓，進而右心衰竭，左心衰竭為晚期才發生。

【黃君皓】評論

Although many factors may contribute to the incidence of BMHD, the pathogenesis is directly related to the hypoxic condition that results from high altitude. Pulmonary vascular shunting is a normal physiologic response to hypoxic conditions and is seen in all animals. Strong responses are seen in cattle, horses, and pigs, whereas people, dogs, guinea pigs, and llamas are less responsive. These findings and the high incidence of disease in cattle indicate they are uniquely susceptible. The vasoconstriction mechanism of shunting is a way to divert unoxygenated blood to oxygen-rich regions of the...