Ketamine eliminates propofol pain but does not affect hemodynamics during induction with double-lumen tubes
- Masato IwataAffiliated withDepartment of Anesthesiology, Nara Medical University
- , Satoki InoueAffiliated withDepartment of Anesthesiology, Nara Medical University Email author
- , Masahiko KawaguchiAffiliated withDepartment of Anesthesiology, Nara Medical University
- , Toshitaka KimuraAffiliated withDepartments of Thoracic and cardiovascular Surgery, Nara Medical University
- , Takashi TojoAffiliated withDepartments of Thoracic and cardiovascular Surgery, Nara Medical University
- , Shigeki TaniguchiAffiliated withDepartments of Thoracic and cardiovascular Surgery, Nara Medical University
- , Hitoshi FuruyaAffiliated withDepartment of Anesthesiology, Nara Medical University
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Background and objective
Propofol injection during induction of anesthesia induces pain. Ketamine has been shown to reduce the injection pain. However, ketamine has unfavorable adverse effects, including increased secretion production and hemodynamic responses, which might induce pulmonary or hemodynamic adverse events, especially in patients undergoing lung surgery who require a double-lumen tube (DLT). The aim of this study was to determine whether ketamine can safely reduce propofol injection pain during induction of anesthesia for lung surgery.
Forty-five patients scheduled for elective lung surgery requiring DLT were randomly allocated into three groups. Patients received saline (control), ketamine 0.5 mg kg−1 (0.5 ketamine), or ketamine 1.0 mg kg−1 (1.0 ketamine), followed by 5 ml propofol 30 s later. An anesthesiologist blinded to the study group assessed pain score during induction, hemodynamics during DLT placement, and secretion production during anesthetic management.
Pretreatment of 0.5 mg kg−1 ketamine reduced the incidence and intensity of propofol injection pain, whereas 1.0 mg kg−1 ketamine completely eliminated the pain. There were no significant differences regarding oxygenation during one-lung ventilation (OLV) and hemodynamics during induction among the three groups, although ketamine increased secretion production.
One milligram per kilogram of ketamine completely eliminated pain associated with propofol injection without affecting hemodynamics during induction of anesthesia and oxygenation during OLV.
KeywordsKetamine Propofol pain Double-lumen tube
- Ketamine eliminates propofol pain but does not affect hemodynamics during induction with double-lumen tubes
Journal of Anesthesia
Volume 24, Issue 1 , pp 31-37
- Cover Date
- Print ISSN
- Online ISSN
- Springer Japan
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- Propofol pain
- Double-lumen tube
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- Author Affiliations
- 1. Department of Anesthesiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
- 2. Departments of Thoracic and cardiovascular Surgery, Nara Medical University, Nara, Japan