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Journal of Research in Medical Sciences، جلد ۱۷، شماره ۰۳، صفحات ۰-۰
عنوان فارسی
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عنوان انگلیسی Bispectral index values during spinal anesthesia us-ing hyperbaric bupivacaine with intrathecal or intra-venous fentanyl for cesarean section
چکیده انگلیسی مقاله Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 BACKGROUND : It has been shown that bispectral index (BIS) may reduce during spinal anesthesia. The aim of this study was comparing BIS scores during spinal anesthesia using hyperbaric bupivacaine alone or with intrathecal or intravenous fentanyl for cesarean section. METHODS : In this double-blind randomized controlled clinical trial, 140 pregnant women with American Society of Anesthesiologists (ASA) class I or II were randomly assigned to receive 1-2.5 mL hyperbaric 0.5% plus normal saline (B), 2-2.5 mL hyperbaric 0.5% plus 20 µg fentanyl intrathecally (BF IT ), or 2.5 mL hyperbaric 0.5% plus 100 µg fentanyl intravenously (BF IV ). BIS was measured using electroencephalography (EEG) findings and recorded at the baseline and 5 th , 10 th , 15 th , 30 th, , 45 th , and 60 th minutes after spinal injection. The heart rate (HR), mean arterial pressure (MAP), signal quality index (SQI), and temperature were also recorded during surgery. RESULTS : A total number of 140 subjects completed the study and underwent analysis. The recorded BIS was significantly different between the three groups at all time points (p = 0.004). At all the times, the BIS values were lower in the BF IV group compared to other groups (p < 0.05). The BIS scores in group B were significantly higher in most time points compared to other groups. After spinal anesthesia, the changing trend of BIS reduced until the 30 th minute for the BF IT group and until the 45 th minute for the B and BF IV groups. CONCLUSIONS : Although the BIS scores began to decrease during spinal anesthesia using hyperbaric bupivacaine alone or with intrathecal or intravenous fentanyl for cesarean section, the greatest reduction from baseline BIS values occurred with adding intravenous fentanyl. Moreover, maximum reductions of BIS scores appeared at 30 and 45 minutes after induction of spinal anesthesia. KEYWORDS : Anesthesia; Bispectral Index; Depth; Spinal
کلیدواژه‌های انگلیسی مقاله anesthesia,bispecteral index,depth,spinal.
نویسندگان مقاله میترا جبل عاملی | mitra jabalameli
associate professor of anesthesiology, anesthesiology and critical care research center, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

بهاره اسدزاده | bahareh asadzadeh
student of medicine, anesthesiology and critical care research center and student research committee, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

نشانی اینترنتی http://jrms.mui.ac.ir/index.php/jrms/article/view/8229
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Articles
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