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( Hyo Jin Byon ),( Ji Won Lee ),( Jong Kuk Kim ),( Jin Tae Kim ),( Young Tae Kim ),( Hee Soo Kim ),( Sang Chul Lee ),( Chong Sung Kim ) 대한마취과학회 2010 Korean Journal of Anesthesiology Vol.59 No.2
Background: The purpose of this study was to assess the safety issues concerning anesthetic management of videoassisted thoracoscopic surgery (VATS) in pediatric patients. Methods: The medical records of 52 pediatric patients undergoing VATS using general anesthesia and one-lung ventilation (OLV) were reviewed. OLV was achieved with a Fogarty catheter (n=23) or endobronchial intubation (n=7) in patients < 10 years of age (group Y, n=30), and using a double-lumen tube (n=19) or a univent (n=3) in children aged between 10 and 16 years of age (group O, n=22). Hypoxemia, hypercarbia, the difference between ETCO2 and PaCO2, and the effect of CO2 insuffl ation were assessed. Results: A decrease in SpO2 less than 90% was observed in 40% of the group Y, compared to none of the group O (P<0.05). A hypercarbia (ETCO2 > 50 mmHg) was observed more frequently in group Y (40%) than in group O (0%; P<0.05). The difference between the ETCO2 and PaCO2 was 10.4 ± 8.9 mmHg in group Y and 4.6 ± 3.9 mmHg in group O (P<0.05). Hypercarbia and acidosis occurred more frequently in patients with CO2 insuffl ation than those without insuffl ation in group Y. Conclusions: Although the anesthesia for VATS in pediatric patients was successfully accomplished, the infants and younger children presented with more intra-operative problems when compared with older children. The anesthetic management for VATS in infants and younger children requires careful and vigilant monitoring. (Korean J Anesthesiol 2010; 59: 99-103)
Jin, Su-Eon,Jeon, Seungho,Byon, Hyo-Jin,Hwang, Sung-Joo Elsevier/North Holland 2017 International journal of pharmaceutics Vol.528 No.1
<P><B>Abstract</B></P> <P>Tacrolimus sorption to tubes was evaluated using pump and drip methods For tubes, polyvinylchloride (PVC)- and non-PVC-based (polyurethane [PU] and polyolefin [PO]) tubes were used. First, inner surface properties of tubes were analyzed using field emission scanning electron microscopy and X-ray photoelectron spectroscopy. Tacrolimus was quantitatively analyzed using high-performance liquid chromatography with UV detection. For kinetic sorption analysis, diluted tacrolimus to 10μg/mL was passed through 1-m-long tubes at 10mL/h. Samples were collected at 1–4h. The inner surface of PO-based tubes was relatively smooth and soft compared with those of PVC- and PU-based tubes. Atomic compositions of tubes matched chemical formulas of polymers excluding low-level impurity in PVC-based tubes. Tacrolimus was successfully analyzed and linearly determined at 2.5–20μg/mL. From both methods, PVC- and PO-based tubes exhibited the highest and the lowest (<10%) sorption levels to tacrolimus, respectively. Tacrolimus was stably delivered using the pump method. Results suggested that the pump method can estimate tacrolimus sorption in administration set tubes and evaluate other sorptional drugs used at low concentrations. PO-based tubes also have promising potential as an alternative for administration set tubes.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
외식부문 : 외식업체 종사원의 직무 스트레스가 직무 만족에 미치는 영향
변풍식 ( Poong Sik Byon ),이효진 ( Hyo Jin Lee ),유은이 ( Eun Yi Yoo ) 한국호텔리조트카지노산학학회 2005 호텔리조트연구 Vol.4 No.2
The purpose of this study is examining duty satisfaction affected by duty stresses of employees in food service industry. Also analyzing the source of duty stresses I consider rationalization of management. And I search the strategy of coping and plan of solution The analysis of the results are as follows: Frist, the affirmative factors are the ability of duty performance and the process of duty performance. It shows they play an important role of catalyst helping employees work harder and more pleasure. Second, the negative factors are the vague duty and the many duty. It shows they obstruct results of duty. Third, duty stresses and duty satisfaction have an attentive relationship. Because all duty stresses factors affect duty satisfaction, we consider the action affirmative stresses for improving employees` duty satisfaction.
Hye-Min Sohn,Yong-Hee Park,Hyo-Jin Byon,김진태,Heesoo Kim,Chong Sung Kim 대한마취통증의학회 2012 Korean Journal of Anesthesiology Vol.62 No.3
Transfusion-induced hyperkalemia can lead to cardiac arrest, especially when the patient rapidly receives a large amount of red blood cells (RBCs), previously stored for a long period of time, irradiated or both. We report on a case of application of the Continuous AutoTransfusion System (CATS) to wash RBCs, in order to lower the high potassium (K+) level in the packed RBCs unit, during massive transfusion following transfusion-induced hyperkalemic cardiac arrest. After the washing process using CATS, there was no more electrocardiographic abnormality or cardiac arrest due to hyperkalemia. This case emphasizes the potential risk to develop transfusion-related hyperkalemic cardiac arrest, during massive transfusion of irradiated, pre-stored RBCs. CATS can be effectively used to lower the K+concentration in the packed RBCs unit, especially when the risk of transfusion-induced hyperkalemia is high.
( Kyoung Ah Han ),( Hyun Jung Kim ),( Hyo Jin Byon ),( Jin Tae Kim ),( Hee Soo Kim ),( Chong Sung Kim ),( Seong Deok Kim ) 대한마취과학회 2010 Korean Journal of Anesthesiology Vol.59 No.2
Tension pneumothorax during ventilating bronchoscopy for foreign body removal is a rare but life-threatening complication. The authors present a case of cardiac arrest caused by tension pneumothorax in a 9-month-old girl who underwent ventilating bronchoscopy for foreign body (peanut) removal. Tension pneumothorax was due to tracheobronchial lacerations caused by a bronchoscope. The patient was successfully resuscitated by cardiopulmonary resuscitation and chest tube insertion. The airway injury was effectively repaired by thoracotomy under extracorporeal membrane oxygenation. (Korean J Anesthesiol 2010; 59: 123-126)