Effect of "Lidocaine" Infusion on sevoflurane Requirement During BIS Guided Cardiac Surgery

The background The need for sevoflurane is reduced in the patients by intravenous lidocaine, in an amazing way when compared to the patients who did not obtained lidocaine. The double-spectrum indicator is a non-interventional device. When anesthesia is given for the patients during surgery or severe diseases or injuries, the brain-mapping device is used to indicate the patients' severity. This is done by reversing the signals, received by the device. The reason of the study The effect of lidocaine, when added to the amount of sevoflurane administered to the patients is demonstrated in this study. The tests are done by comparing the lidocaine received patients, with the patients who were given sevoflurane without lidocaine, with the use of the double-spectrum indicator. Pathology and Methods of Work The research was performed from June 2014 to December 2014 at the Erbil Center for Cardiothoracic Surgery with 50 patients, who were separated into two different groups. Lidocaine was administered to the first group of 25 patients and the second group of 25 patients was not treated with lidocaine. Results In group A patients, the rate of sevoflurane concentrations was 1.68. This reduced to 1.44% at sternatomy and 1.2% during bypass. The rate of sevoflurane administered in group B was 1.36%, as soon as anesthesia was given. This has reduced to 0.84% at sternatomy and 0.4 during bypass. Conclusions The amount of sevoflurance that needs to be administered to the patients through assessment using the doublespectrum indicator is drastically reduced by the intravenous use of lidocaine, while giving anesthesia.