- 
          
          Anesthesia and analgesia · Apr 2007 Randomized Controlled TrialThe effect of epidural anesthesia with different concentrations of ropivacaine on sevoflurane requirements.- Jie Zhang, Wei Zhang, and Bin Li.
- Department of Anesthesiology, The First Affiliated Hospital of ZhengZhou University, No. 1 East-JianShe Road, ZhengZhou 450052, China. joannyzh@hotmail.com
- Anesth. Analg. 2007 Apr 1;104(4):984-6.
 BackgroundWe evaluated sevoflurane requirements during combined general-epidural anesthesia with different concentration of ropivacaine.MethodsFifty-six patients were randomly divided into three groups to epidurally receive saline, 0.2% ropivacaine or 1% ropivacaine. Sevoflurane concentration was adjusted to maintain certain anesthesia depth. BIS values and end-tidal sevoflurane concentrations were recorded at time points of pre-intubation and 5 min, 10 min, 15 min, 20 min, 25 min, 30 min after intubation.ResultsEnd-tidal sevoflurane was significantly lower in the group receiving higher concentration of sevoflurane.ConclusionsEpidural anesthesia can decrease sevoflurane requirements to a larger extent when a higher concentration of ropivacaine was applied. Notes
 Knowledge, pearl, summary or comment to share?You can also include formatting, links, images and footnotes in your notes- Simple formatting can be added to notes, such as *italics*,_underline_or**bold**.
- Superscript can be denoted by <sup>text</sup>and subscript<sub>text</sub>.
- Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens-or asterisks*.
- Links can be included with: [my link to pubmed](http://pubmed.com)
- Images can be included with: 
- For footnotes use [^1](This is a footnote.)inline.
- Or use an inline reference [^1]to refer to a longer footnote elseweher in the document[^1]: This is a long footnote..