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Background: Propofol has been used widely as an anesthetic for elderly patients; however, the drug instructions only indicate that the need for maintenance of general anesthesia in elderly patients is reduced, and not the extent of the reduction. This study has summarized the usage of propofol in total intravenous anesthesia under bispectral index (BIS) monitoring and determined the optimum dosage of propofol for elderly patients.
Methods: The study comprised 156 patients undergoing elective surgery under general anesthesia divided into 2 groups according to their age: the elderly group (O group) and nonelderly group (Y group). BIS monitoring was used in both groups during the operation, and propofol and remifentanil were used to maintain anesthesia. The preoperative special conditions, intraoperative maintenance of propofol, remifentanil, fentanyl, cis-atracurium, vasoactive drug use, and hemodynamic changes were summarized.
Results: Propofol maintenance in the O group was 3.372 ± 0.774 mg/(kg h), which was significantly lesser than that in Y group (P < 0.05). The incidence of cardiovascular and cerebrovascular diseases and the use rate of vasoactive drugs in the O group were significantly higher than in the Y group (P < 0.05).
Conclusion: Propofol maintenance in the O group was significantly lower than that in the nonelderly group; this indicates that the anesthetic drug delivery rate for elderly patients should be reduced.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7004673 | PMC |
| http://dx.doi.org/10.1097/MD.0000000000019043 | DOI Listing |
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