The Effect for Intracranial Pressure during Laryngoscopy and Endotracheal Intubation

기관내삽관이 뇌압변동에 미치는 영향

It is well known that intracranial pressure (ICP) and mean arterial pressure (MAP) are increased by laryngoscopy and endotracheal intubation during induction of general anesthesia, and It may be very dangerous in neurosurgical patients who had increased ICP. Therefore, this study was performed to know the range of ICP increase during induction of the conventional general anesthesia with intubation following thiopental and succinylcholine injections. Intracranial pressure and MAP were measured in 13patients who underwent cramotomy. All the patients were monitored cerebral epidural ICP and intra-arterial pressure pre-operatively. The results were as follow: 1. Intracranial pressure was increased of $7.1{\pm}7.23mmHg$. 2. Arterial pressure was increased of $43.5{\pm}25.46mmHg$. 3. Cerebral perfusion pressure was increased of $33.3{\pm}27.53mmHg$. It is stressed that certain procedures are necessary to prevent from further increase of ICP due to induction of general anesthesia in patients with increased ICP.

전신마취시 후두경의 사용과 기관내삽관이 혈압 및 뇌압을 상승시킬 수 있음은 잘 알려져 있으며 이는 이미 뇌압이 상승되어 있는 환자에게는 매우 위험할 수 있다. 따라서 저자들은 현재 통상 시행되고 있는 전신마취 유도방법인 thiopental, S.C.C., intubation 과정이 어느 정도의 뇌압상승을 유발시키는지를 알아보기 위하여, 뇌압측정장치가 되어있는 개두술 환자 13명에게 위와 같은 마취유도시 뇌압 및 동맥압의 변화를 측정하여 보았던바 뇌압은 $7.1{\pm}7.23mmHg$, 동맥압은 $43.5{\pm}25.46nmHg$, 뇌관류압은 $33.3{\pm}27.53mmHg$ 상승되었다. 이러한 결과로 미루어 보아, 이미 뇌압이 상승되어 있는 환자의 마취유도 시에는 필히 마취유도에 따른 뇌압상승을 예방할 수 있는 처치를 강구해야만 할 것으로 사료된다.