Abstract
Anesthesia and surgery for the geriatic patient is increasing gradually. The most important age-related physiologic changes are those occured in the cardiovascular system. When anesthetizing elderly patients, the anesthetist should lesson the severity of the cardiovascular responses.
At induction of anesthesia, we compared in this case, effect of laryngeal mask airway (LM) insertion and orotracheal intubation on the cardiovascular system. LM insertion caused more little change to heart rate, systolic blood pressure and rate pressure product than orotracheal intubation did.
LM insertion with the aid of topical anesthesia caused much smaller change to hemodynamic parameter.
X-ray and dye studies of aspiration model revealed that LM probably preventsmassive aspiration.
This unique airway should be widly used.
