Can Head Position Improve Surgical Field During Ear Surgery?
Status:
Completed
Trial end date:
2020-10-14
Target enrollment:
Participant gender:
Summary
Middle ear surgeries utilizes microscope in a narrow field. They are better performed under
controlled hypotension, to minimize bleeding and improve surgical field visualization and
hence improve results.Head-up or anti-trendelenburg position influences intraoperative
bleeding by generating regional ischaemia in sites elevated above the level of the heart.
Also by augmenting the effect of vasodilators through pooling of blood in dilated veins.