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저비중 척추마취시 국소마취제의 용적이 마취 높이에 미치는 영향
김승준,한동우,남용택,배선준,오경미 대한마취과학회 2001 Korean Journal of Anesthesiology Vol.41 No.2
The Effect of the Injected Volume on the Spread of Spinal Anesthesia with Hypobaric Tetracaine Dong Woo Han, M.D., Seung Jun Kim, M.D., Sun Joon Bai, M.D. Kyeong Mee Oh, M.D., and Yong Taek Nam, M.D. Department of Anesthesiology, Yonsei University College of Medicine, Seoul, Korea Background: The properties of hypobaric spinal anesthesia are excellent in sensory and motor block with low concentration solutions, increased venous return, and hemodynamic stability. Much volume is needed with hypobaric spinal anesthesia because low concentration solutions are used. The purpose of this study was to examine the effects of the injected volume on the level of anesthesia in hypobaric spinal anesthesia during a total hip replacement. Methods: Twenty-seven adult patients scheduled for a total hip replacement were assigned randomly to two groups, one with 0.1% (n = 14), and the other with 0.2% (n = 13) hypobaric tetracaine spinal anesthesia. 8 mg of tetracaine was used for male patients and 7 mg for female patients. Hence the injected volumes were 8 ml for male and 7 ml for female patients in 0.1% solution and 4 ml for male and 3.5 ml for female patients in 0.2% solution, respectively. Epinephrine was mixed to either solution in concentrations of 1 : 200,000. The speed of injection was fixed at the rate of 0.2 ml/sec. Results: The height of sensory block with the 0.1% was one dermatome higher (T5.7) than with the 0.2% tetracaine solution (T6.7). The time for sensory block (11.4 min vs 12.3 min) and the time for motor block (10.0 min vs 15.0 min) with 0.1% was shorter than that with the 0.2% tetracaine solution. The duration of sensory block and the duration of motor bllock were not significantly different in either groups. Complete motor block was achieved in all patients. Conclusions: Both 0.1% and 0.2% hypobaric tetracaine spinal anesthesia are suitable for a total hip replacement. However we got better results with 0.1% than with 0.2% retracaine such as rapid and high sensory block with rapid motor block. (Korean J Anesthesiol 2001; 41: 159~164)
대퇴정맥을 통한 중심정맥압 측정용 카테테르 거치시 발생한 카테테르 전체의 하대정맥내 우발적 삽입
김기준,조성민,남용택,박병학,배선준 대한마취과학회 1999 Korean Journal of Anesthesiology Vol.37 No.3
This is a case report of the accidental insertion of an entire catheter into the right femoral vein during central venous catheterization through the right femoral vein. The risks of accidental guide wire or catheter breakage and migration of resulting fragments to the heart or intravascular or extravascular space has been increased with the frequent diagnostic and therapeutic use of central venous catheters. We used a single lumen polyurethane central venous catheter (SECALON UNIVERSAL, Viggo-Spectramed, UK). During central venous catheterization under general anesthesia, the catheter was disconnected from its hub and accidentally inserted into the right femoral vein. The catheter was retrieved by using a snare under fluoroscopic guidance without any complications. (Korean J Anesthesiol 1999; 37: 511∼515)
유. 소아에서 체외순환 전후의 요골. 대퇴동맥압간의 차이의 변화 비교
이춘수,유은숙,곽영란,임현교,방서욱,조범준,배선준 대한마취과학회 1996 Korean Journal of Anesthesiology Vol.30 No.2
Background: It has been known that a reversal of usual relationship between aortic and radial artery pressures(RAP) can occur in adult patients following cardiopulmonary bypass(CPB). The phenomenon of a pressure gradient between RAP and femoral artery pressure(FAP) were evaluated in pediatric patients before and after CPB. Methods: 141 perdiatric patients undergoing open heart surgery were allocated into 2 groups. Group 1(n=77): infant's body weight was below 10kg. Group 2(n=64): child's body weight was between 10 and 20kg. After induction of anesthesia RAP was measured through 22G(1 inch) or 24G(3/4 inch) catheters and FAP was measured through 20G(2 inch) or 22G(1 inch) catheters using calibrated transducers. Hematocrit, rectal and nasopharyngeal temperature and left atrial pressure(LAP) were recorded 10 min after induction, immediately, l5, 30 and 60 min after CPB. Values are expressed as mean±SD and analysed using paired and unpaired t-test; p$lt;0.05 was considered significant. Result: Systolic femoral arteial pressure(SFAP) was higher than radial arterial pressure(SRAP) before CPB in both groups. After CPB, the pressure gradient persisted in group 2 but was reversed with statistical significance in group l. Conclusion: When hypotension occurs during cardiac surgery, a comparison is recommended between radial and femoral or aortic pressure before treatment for hypotension is contemplated.