アブストラクト(37巻4号:神奈川歯学)

神奈川歯学

Japanese

Title : 口腔癌長時間手術後の高熱に関する検討‐プロポフォールによる細菌増殖の影響について‐
Subtitle :
Authors : 大澤孝行, 吉田和市, 久保田英朗*
Authors(kana) :
Organization : 神奈川歯科大学麻酔学講座, *神奈川歯科大学口腔外科学第2講座
Journal : 神奈川歯学
Volume : 37
Number : 4
Page : 158-163
Year/Month : 2002 / 12
Article : 報告
Publisher : 神奈川歯科大学学会
Abstract : 本邦において1995年より臨床応用されている静脈麻酔薬プロポフォール(2, 6-diisopropylphenol, ZENECA)は, 口腔外科領域においても広く用いられるようになった. 本麻酔薬は, 速やかな導入, 覚醒を特徴としているが, プロポフォールが細菌増殖を助長することが報告されている1~7). 今回われわれは, プロポフォールを用いた長時間(10~15時間)の麻酔症例で, 術直後より高熱を来した症例を経験した. われわれが渉猟し得た範囲では, 本邦でのプロポフォール使用症例で術後の高熱に関して検討した報告はない. そこで, われわれが経験した症例の臨床経過の概要とともに, プロポフォールの細菌増殖に与える影響について実験的検討を加え, 若干の知見を得たので報告する. 症例と経過 症例は, 浜松医科大学歯科口腔外科で加療された頭頸部癌患者で, 腫瘍切除術, 頸部郭清術, 即時血管柄付組織再建術が施行されたプロポフォール使用群3名, プロポフォール非使用群10名を対象とした(表1, 2).
Practice : 歯科学
Keywords : propofol, bacterial growth, prolonged surgery, hyperthermia

English

Title : Postoperative Benign Hyperthermia Following Prolonged Surgery with Propofol for Oral Cancer ―Effect of Propofol on Bacterial Growth―
Subtitle :
Authors : Takayuki OHSAWA, Kazu-ichi YOSHIDA, Eiro KUBOTA*
Authors(kana) :
Organization : Department of Anesthesiology, Kanagawa Dental College, *The Second Department of Oral and Maxillofacial Surgery, Kanagawa Dental College
Journal : Kanagawa Shigaku
Volume : 37
Number : 4
Page : 158-163
Year/Month : 2002 / 12
Article : Report
Publisher : Kanagawa Odontological Society
Abstract : We have experienced three patients with benign hyperthermia following prolonged (10 to 15 hours) surgery consisting of oral malignant tumorectomy, hemi-or bilateral-neck dissection and vascularized reconstruction. The operation had been performed under general anesthesia with propofol, a newly introduced anesthetic agent that had been used up to the total of 3.4~9.5g (5.22mg~8.12mg/kg/hr). These cases were summarized and compared with other patients anesthetized by using sevoflurane. The mean body temperatures up to 48 hours after operation were 38.27±0.44℃ in the propofol group, 37.47±0.39℃ in the sevoflurene group (p<0.001). Based on a clinical comparison of the data, two experiments were set up to assess the effect of propofol on bacterial growth to elucidate the cause of the febrile episode. The bacteria E. coli (DH 5 α) transformed with pGEM 4 vector was cultivated in a suspension culture, and also spread on the surface of a LB agar plate, either with just ampicillin or with ampicillin and propofol (5μg/ml) . Then, bacterial growth rates were compared between the two groups to assess the effect of the propofol. The propofol accelerated bacterial growth at the log phase of the bacterial growth curve, especially during the initial several hours at the log phase. These data suggest that propofol could enhance bacterial growth activity and thus may cause hyperthermia. Based on these results, it could be proposed that 1) antibiotics should be applied in advance or immediately after the beginning of surgery to avoid infectious complications and 2) stringent aseptic techniques should be used when preparing and administering propofol.
Practice : Dentistry
Keywords : propofol, bacterial growth, prolonged surgery, hyperthermia