hypothermia
- HR ↓ (Vital ↓)
- Coaulopathy (PLT dysfunction)
- Mydriasis (Catecholamine ↑)
Systemic hypothermia : 36℃ 미만
- Core temperature측정 부위
- esophagus, nasopharynx, tympanic membrane, pulmonary artery.
- 32-20℃ : 10℃ 하강에 metabolic oxygen demand 50% 감소. 1℃ 감소에 7%씩 감소.
- 15-18℃ : Total circulatory arrest.(up to 60min)
Hypothermia부작용
- Reversible coagulopathy : PLT dysfunction, Thrombocytopenia.
- Cardiac dysfunction : Bradycardia.
- Left Hb-O2 saturation shift.
- 말초혈관 저항 증가
- 술 후 protein catabolism & stress response(→mydriasis)
- Renal function 감소. 약물 대사 감소.
- Poor wound healing.
- Phase Ⅰ : vasodilation, 1-2℃감소/ 1st hour
- Phase Ⅱ : 3-4 hour
- Phase Ⅲ : equilibrium, hypothalamus 억제
- Arrest 가능 : 성인 32-30℃, 소아 28-27℃
hypothermia.txt · 마지막으로 수정됨: 저자 soyuz