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전덕희,김나영,신양식 연세대학교의과대학 2010 Yonsei medical journal Vol.51 No.3
A patient received combined spinal-epidural anesthesia for a scheduled total knee arthroplasty. After an injection of spinal anesthetic and ephedrine due to a decrease in blood pressure, the patient developed a severe headache. The patient did not respond to verbal command at the completion of the operation. A brain CT scan revealed massive subarachnoid and intraventricular hemorrhages, and a CT angiogram showed a ruptured aneurysm. Severe headaches should not be overlooked in an uncontrolled hypertensive patient during spinal anesthesia because it may imply an intracranial and intraventricular hemorrhage due to the rupture of a hidden aneurysm.
증례보고 : 승모판 부전 환자에서 간정맥으로 이탈된 폐동맥 카테터
전덕희 ( Duk Hee Chun ),정금희 ( Kum Hee Chung ),이종연 ( Jong Yun Lee ),송지은 ( Ji Eun Song ),김준영 ( Jun Young Kim ),이정향 ( Jung Hyang Lee ),박정현 ( Chung Hyun Park ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.57 No.5
A 47-year-old woman was scheduled for mitral valvoplasty. Before induction of anesthesia, a pulmonary artery catheter (PAC) was placed via right internal jugular vein. Central venous pressure or right atrial pressure was traced until about 60 cm of PAC insertion and right ventricular pressure curve appeared without arrhythmias. We withdrew and advanced the catheter several times, but pressure tracing showed the same pattern. And we could not obtain the pulmonary artery pressure. We decided to leave the PAC in the right ventricle. No ventricular arrhythmia was detected. Postoperative chest x-ray revealed that PAC traveled through inferior vena cava and looped in the hepatic vein with the tip of the catheter in the right ventricle. Under fluoroscopic guidance, PAC was inserted to the pulmonary artery. No sign of hepatic vein obstruction was detected. (Korean J Anesthesiol 2009;57:633∼6)
Asystole during microvascular decompression in case of trigeminal neuralgia -A case report-
이수연,전덕희,Min Young Kim,SooYeun Park 대한마취통증의학회 2014 Anesthesia and pain medicine Vol.9 No.1
Manipulation of the sensory branches of the trigeminal nerve isknown to cause autonomic changes, such as bradycardia orasystole, known as the trigemino-cardiac reflex. In this case, thepatient underwent microvascular decompression due to trigeminalneuralgia and developed sudden bradycardia, followed by abruptasystole with a concurrent fall in the systolic blood pressure. Therewas spontaneous return of cardiac rhythm and blood pressure, buttwo more episodes of sinus bradycardia occurred during the surgery.
Pulmonary thromboembolism after tourniquet inflation under spinal anesthesia -A case report-
송지은,전덕희,신지현,박정현,이종연 대한마취통증의학회 2010 Korean Journal of Anesthesiology Vol.59 No.-
Pulmonary thromboembolism is one of the most important causes of morbidity and mortality in patients undergoing lower extremity orthopedic surgery. Early diagnosis and appropriate management are important clinical challenges. In this case, massive pulmonary embolism causing sudden cardiac arrest was attributed to use of tourniquet inflation during lower extremity orthopedic surgery. Resuscitation procedures were initiated and transesophageal echocardiography revealed pulmonary thromboembolism. Patients with high suspicion for the presence of deep vein thrombus must be monitored thoroughly during limb exsanguinations.
微量分析에 있어서 Hg^++이온과 共存하는 Pb^++ 이온 分離에 관한 硏究
鄭殷鎔,田德熙 梨花女子大學校 韓國生活科學硏究院 1981 韓國生活科學硏究院 論叢 Vol.27 No.-
수은과 납은 모두 인체에 대단히 해로운 중금속 원소로서 날로 심각해지고 있는 공해문제와 관련하여 여러가지 환경오염 물질에 대해 이들은 정량하는 실험이 많이 발표되었다. 이들 실험에서는 일반적으로 수은과 납의 미량분석에서 모두 U.V.spectrophotometer에 의한 dithizone법이 많이 사용되어 왔다. 그런데 이들 중금속을 dithizone법으로 정량할 때에 각각의 최적조건이 있지만 똑같이 dithizone에 의해 발색되며 그 흡광도를 측정하는 파장(λ_max)이 거의 비슷하므로 각각의 이온을 정량할 때 상대이온에 의해 방해작용을 받을 것이 예상되므로 이 점에 관하여 실험해 본 결과 실제로 상호 방해작용이 있음을 알 수 있었다. 따라서, 수은이온과 납이온이 공존하는 시료에 대해서 각각의 이온을 dithizone법으로 정량하고자 할 때에는 미리 이 두 이온을 분리시킬 필요성이 있다. 이 논문에서는 그 분리방법으로 정성분석에서 이용되던 Brockmenn법 및 Vortmann법등을 사용하여 두 이온을 분리할 때 그 분리 효과가 미량분석에 적용되어질 수 있는가늬 가능성을 검토하고자 하였다. 실험 결과, 위 분리방법에서 모두 시료의 농도라 클수록 개입되는 상대오차가 적었으며 분리방법으로는 PH5.0∼6.0에서 Vortmann법을 적용하였을 때 다른 방법에 비하여 분리 효과가 Pb^++이온의 농도 50ppm에서도 분리 오차 1.26%로 가장 크다는 사실을 알 수 있었다. In micro analysis of mercury and lead, dithizone methods by U.V. spectrophotometer have been generally used. In these dithizone methods, each ion naturally has respective optimum conditios, Because both ions are dithizone and λ_max that measure the absorbance is very similar, it was expected that these two ions would have interfering reactions with each other. From the results of the present experiments, it was proved that these ions have interfering effects with each other. It was, therefore, concluded that these two ions must be separated beforehand if we are to determin each ion by dithizone method in the sample solutio in which Pb^++ and Hg^++ ions coexist. In this paper, it was attempted to study the possibility that the separation effects could be applied to micro analysis when the two ions are separated by Brockmann's method and Vortm-ann's method, which had been used in qualitative analysis It was found that the relative errors decrease according to the increase of the concentration of sample solutions used in all the separation methods and that the Vortmann's method has the greatest separation effect at the range from ph 5.0to 6.0 with a separation error 1.26% at the concentration of Pb^++ ion 50 PPM.
강직척추염 환자의 경추 손상에서 굴곡성 기관지경을 사용한 각성하 경비 기관내삽관
소은선,김성수,김선옥,장혜윤,전덕희 경희대학교 경희의료원 2016 慶熙醫學 Vol.31 No.1
Traumatic cervical fracture compressing the spinal cord increase risk of existing neurological condition during tracheal intubation. Preexisting ankylosing spondylitis with cervical spine involvement makes spinal column more rigid and introduces difficulty in airway management. In a patient of ankylosing spondylitis with traumatic cervical spine injury, awake fiberoptic intubation is the gold standard to reduce cervical spine movement and preserve spinal cord function during intubation. We report a fiberoptic nasal awake intubation in such patient with limited oral opening due to braces.
김나영,배선준,유영철,전덕희,이혜미,정영수 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.4
Purpose: The aim of this study was to evaluate the effects of premedication with oral atenolol or enalapril, in combination with remifentanil under sevoflurane anesthesia,on intraoperative blood loss by achieving adequate deliberate hypotension (DH) during orthognathic surgery. Furthermore, we investigated the impact thereof on the amount of nitroglycerin (NTG) administered as an adjuvant agent. Materials and Methods: Seventy-three patients undergoing orthognathic surgery were randomlyallocated into one of three groups: an angiotensin converting enzyme inhibitorgroup (Group A, n=24) with enalapril 10 mg, a β blocker group (Group B, n=24) with atenolol 25 mg, or a control group (Group C, n=25) with placebo. All patientswere premedicated orally 1 h before the induction of anesthesia. NTG was the only adjuvant agent used to achieve DH when mean arterial blood pressure (MAP) was not controlled, despite the administration of the maximum remifentanil dose (0.3 μg kg-1min-1) with sevoflurane. Results: Seventy-two patients completed the study. Blood loss was significantly reduced in Group A, compared to Group C (adjustedp=0.045). Over the target range of MAP percentage during DH was significantlyhigher in Group C than in Groups A and B (adjusted p-values=0.007 and 0.006, respectively). The total amount of NTG administered was significantly less in Group A than Group C (adjusted p=0.015). Conclusion: Premedication with enalapril(10 mg) combined with remifentanil under sevoflurane anesthesia attenuated blood loss and achieved satisfactory DH during orthognathic surgery. Furthermore, the amount of NTG was reduced during the surgery.