• 대한관절경학회지
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• 제6권2호
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• pp.126-130
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• 2002

목적 : 견봉하 점액낭에 가려져 부분층 파열로 여겼던 회전근개 전층 파열을 견관절 내 공기 주입 방식을 사용한 견봉하 점액낭 관절경적 관찰로 효과적인 진단의 가능 여부를 알아 보고자 하였다. 대상 및 방법 : 65예 중 견관절 관절경상 회전근 개 부분층 파열인 18예를 제 1군으로, 전층 파열로서 봉합을 시행 한 37예를 제 2군으로 나누어 견관절에 $50\~100ml$의 공기주입으로 확장을 시킴과 동시에 견봉하 관절내로 누출 되는 공기 방울을 관찰하였다. 결과 : 제 1군 중 3예에서 공기 누출을 보고 전층 파열임을 확인할 수 있었으며, 제 2군 중 2예에서는 다량의 공기 누출 부위가 발견되어 불완전한 봉합임을 확인하고 추가 봉합을 시행 할 수 있었다. 결론 : 공기 주입 방식은 회전근 개 부분층 파열과 전층 파열을 감별하고, 비후되고 유착된 점액낭에 가려져 있는 전층 파열을 발견할 수 있으며, 술 후 봉합 부위의 평가에 유용한 방법으로 사료된다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제28권6호
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• pp.440-455
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• 2002

The final goal for an orthognathic surgery is a functional and esthetic achievement based on occlusion theory. All the dental treatment should be done with the occlusion in mind, though, they tend to be ignored with no good reason. We cannot think of occlusion without temporomandibular joint because it is the first clue to define an occlusion. As normal occlusion comes from the central tendency of distribution of population, we can get it by examining the population that closely meet the criteria of ideal occlusion. To perform proper occlusal function and to maintain the stability after treatment, the case must be finished in normal occlusion closer to ideal one. Our aim is to achieve the ideal occlusal scheme like the mutually protected occlusion with the best masticatory efficiency and the stability. The facial esthetics are influened by culture, race and the time in which human live. While the occlusal function rarely changes as time goes by, esthetics tend to do from one country to another. Orthodontists and maxillofacial surgeons should have solid sets of treatment goals to achieve the best facial esthetics and the ideal occlusion dictated by the joint. Doing orthognathic surgery, two factors aforementioned should be taken into account to establish the Surgical Treatment Objectives(STO). The doctors who are planning orthognathic surgery need to have a very logical and systematic thought process to make STO. The author examined 28 selected beautiful Korean female adults with normal skeleton with normal occlusion and analyzed the hard and the soft tissue relationship into five parts : dentomaxillary relationship, intermaxillary relationship, posture to hard tissue relationship, facial balance, and posture to soft tissue relationship. This study presents a sequential flow of diagnosis and treatment planning especially for surgical patients and it also can be applied to the nonsurgical patients.

• Journal of Chest Surgery
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• 제42권3호
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• pp.317-323
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• 2009

배경: Cox-Maze 술식은 심방세동의 동율동 전환율은 높지만, 좌심방의 크기 및 기계적 수축력 회복 측면에 대한 효과는 아직 확립되어 있지 않다. 본 연구는 Cox-Maze 술식 후 좌심방 크기 및 기계적 수축력 변화를 알아보기 위해 수행되었다. 대상 및 방법: 1997년 7월부터 2008년 7월까지 승모판막 질환과 동반된 심방세동으로 총 647명의 환자에게 Cox-Maze 술식이 이루어졌다. 이 중, (1) 수술 후 경과 관찰 기간이 2년 이상인 경우, (2) 수술 후 항부정맥약의 복용 여부와 상관없이, 경과 관찰 기간도중 시행한 검사상 동율동이 지속된 경우, 그리고 (3) 경과 관찰 기간 도중 시행한 경흉부 심초음파 검사상, 판막의 Grade III 이상의 폐쇄부전증 또는 중등도 이상의 협착증이 없는 경우 등의 3가지 조건을 충족하는 211명을 연구 대상으로 하였다. 결과: 술 후 1년과 그 이후 추적 관찰기간의 경흉부심초음파 검사상 좌심방 크기는 증가하였으며, 기계적 수축력(E/A ratio)은 감소하였다. 추적 관찰기간이 길어질수록 통계적으로 유의하게 좌심방의 크기 증가와 기계적 수축력(E/A ratio) 감소의 소견을 보였다. 결론: 술 후 초기에 보여지는 회복된 좌심방 크기와 기계적 수축력은 시간이 경과함에 따라 각각 크기 승가와 기계적 수축력 감소를 보인다. 따라서 동율동으로 심박동 전환된 환자도 장기적인 추적관찰을 통해 꾸준한 좌심방 기능 평가가 필요하다고 생각된다.

• 보건의료산업학회지
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• 제4권1호
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• pp.71-86
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• 2010

The purpose of this study is to promote efficiency of hospital management with customer satisfaction by understanding qualitative system about more systemic hospital service coordinator's job under analyzing the satisfactory degree and coherence of hospital service coordinator's job because of increase of customer need level by medical environment improvement and the variety of offering method of medical service. I allocated a questionnaire per each hospital around dentistry, Oriental medicine clinic, plastic surgery in medical examination department and withdrew questionnaire on total 662 hospitals. According to the study results stated above, generally necessity on employment of a hospital service coordinator appeared high and To the necessity, I considered that a hospital service coordinator's job must strengthen the role for going still more to customer with discriminated mind and service not simple kind service to medical consumer, with establishing more systematic and realistic educational culture in qualification and educational department of a hospital service coordinator. Also a hospital service coordinator must be changed to promote customer satisfaction and efficiency of hospital management by more systematic business assignment and role establishment.

• 대한미생물학회지
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• 제21권3호
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• pp.381-385
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• 1986

Twenty strains of penicillin(PC)-resistant Staphylococcus aureus ($MIC{\geqq}32U/ml$) were chosen randomly from recent isolates and submitted to the present experiment to see what effect the combined antibiotic action of moxalactam(MX) and fosfomycin(FM) would bring about on the cells, using MS-2 system. 1. The conventional agar dilution method and the rapid automatic MS-2 system were used in measuring the MICs of MX and FM against each strain and the comparison of the data obtained revealed no significant difference between the two methods in the titer and distribution of the MICs. 2. The automatic MS-2 system was, therefore, used alone in determining the combined growth inhibitory effect of MX and FM because of its more rapidness, and the obtained results were that most of the PC-resistant strains(16 out of 20, 80%) were synergistically inhibited by the two antibiotic combination while additive effect was observed in the remaining 4 strains(20%). 3. Thus, it is suggested that the growth of PC-resistant staphylococcal cells may be synergistically inhibited by MX and FM combination and the efficiency of two antibiotic action as well as MIC of single antibiotic may be more rapidly determined by the MS-2 system than by the conventional method.

• 한국동물생명공학회지
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• 제35권1호
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• pp.50-57
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• 2020

The objective of this research work was to know ovarian dynamics and pregnancy rate of cyclic Murrah buffalo cows with induced estrus by administration of prostaglandin F2α (PGF2α) and timed artificial insemination (TAI) with frozen thawed semen. A total of 31 female buffaloes were selected for the study. The buffalos having matured CL observed by ultrasonography were given one intra muscular injection of cloprostenol 500 ㎍ and TAI was performed using frozen thawed semen of Indian Murrah buffalo bull. Results showed that 90.32% (significantly, at p < 0.05) cows explore the sign of heat after injection of PG and 67.85% (significantly, at p < 0.05) cows were become pregnant out of 28 inseminated (TAI) cows. In the 28 inseminated (TAI) cows, average number of smaller and larger size of follicles were non-significantly (p > 0.05) higher at day 3 post PG injection, but the medium size of follicles was nonsignificantly (p > 0.05) higher at PG injection. At day 3 post PG injection the diameter of follicles was significantly (p < 0.05) higher, but the diameter of CL was significantly (p < 0.01) lower compared at PG injection. At PG injection the diameter of largest follicle was non-significantly differences (p > 0.05) in between pregnant and non-pregnant cows. But at day 3 post PG injection it was significantly (p < 0.01) higher in pregnant cows compared to non-pregnant cows. The number of small, medium, and large follicles at PG injection and at day 3 post PG injection were non-significantly (p > 0.05) difference in between pregnant and non-pregnant buffalo cows. Finally, it is concluded that the CL was effectively regresses and induced the sign of heat in buffalo cows and after AI the cows were become pregnant with significant rate. The study will help to the veterinarian and researcher to know the efficacy of PG injection and AI for reproductive efficiency in buffalo cows.

• 한국전산유체공학회지
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• 제15권2호
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• pp.41-46
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• 2010

In this paper, the fluid dynamic forces and performances of a moving airfoil in the low Reynolds number flow is addressed. In order to simulate the necessary propulsive force for the moving airfoil in a low Reynolds number flow, a lattice-Boltzmann method is used. The critical Reynolds and Strouhal numbers for the thrust generation are investigated for the four propulsion types. It was found that the Normal P&D type produces the largest thrust with the highest efficiency among the investigated types. The leading edge of the airfoil has an effect of deciding the force production types, whereas the trailing edge of the airfoil plays an important role in augmenting or reducing the instability produced by the leading edge oscillation. It is believed that present results can be used to decide the optimal propulsion types for the given Reynolds number flow.

• 대한후두음성언어의학회지
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• 제32권2호
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• pp.81-86
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• 2021

Background and Objectives Therapies have been reported to treat the glottal gap previously. However, these voice therapies showed the limits because many techniques focused only on one among breathing, resonance and phonation. In addition patients often have difficulties visiting hospital frequently. 'Gliding and humming' is vocal training technique that readjusts total vocal patterns such as breathing, resonance and phonation. This technique can be easily applied during short term sessions. The purpose of this study is to evaluate the efficiency of voice therapy with 'gliding and humming' for patients with glottic gap during short-term treatment sessions. Materials and Method Twenty-three patients with glottal gap were selected. Of all patients, 14 patients had sulcus vocalis and 12 patients had muscle tension dysphonia (MTD). Voice therapies were performed 1.9 sessions in average. GRBAS, jitter, shimmer, noise to harmonic ratio, semitone range, closed quotient_vowel and maximum phonation time were compared before and after the therapies. In addition, changes of glottal gap and MTD severity were evaluated. Results Statistically significant improvement was observed. MTD improvement was observed only among the patients with glottal gap improvement. Also sulcus vocalis group showed the statistically significant improvement. Conclusion 'Gliding and humming' was effective to the patients with glottic gap and sulcus vocalis. Also, among patients who have both glottic gap and MTD, the data suggests that voice therapy for glottic gap also makes improvement in MTD.

• Archives of Plastic Surgery
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• 제32권1호
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• pp.5-11
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• 2005

Prostaglandin $E_1$($PGE_1$) is known to have various physiological action such as vasodilatation, decrease of blood pressure, angiogenesis, inhibition of platelet aggregation and so forth. $PGE_1$ has been developed in many different formulations in order to overcome its chemical instability and deactivation in the lungs when administered parenterally. Lipo-AS013 is a potent drug with higher chemical stability and greater vascular wall targeting than others. The study was done on $3{\times}10cm$ model flap of dorsal skin of Sprague-Dawley rats and the flap perfusion survival were observed and documented. The flap treated with Lipo-AS013 beforehand was given intravenously Sodium fluorescein 10 minutes later, and then Percent Dye Fluorescence Index(% DFI) was calculated. The results were compared to a control group and the group administered locally epinephrine.. In the control group, the % DFI and flap survival rate increased from $54.1{\pm}6.7$ to $65.0{\pm}2.6$(p<0.01) while in Lipo-AS013 group from $55.3{\pm}2.2$ to $67.4{\pm}1.9$(p<0.01), respectively. In the epinephrine group, the % DFI(p<0.05) and flap survival rate(p<0.001) decreased. In the both epinephrine and Lipo-AS013 group Percent DFI and flap survival rate are comparable with the control group.The result indicates that the potent Lipo-AS013 enhances the blood flow and flap survival. This highly potent Lipo-AS013 may have targeting ability and accumulate $PGE_1$ onto the vascular walls. A quantitative analysis of fluorescence on the skin surface is a reliable tool to measure the blood perfusion into an ischemic flap and its viability. Further comparative study with conventional $PGE_1$ and Lipo-$PGE_1$ is needed in order to clarify the action and efficiency of Lipo-AS013.

• Journal of Chest Surgery
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• 제43권4호
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• pp.387-393
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• 2010

배경: 이번 연구의 목적은 정맥내 레이저 응고술(EVLT)과 발거술의 재발을 포함한 중기 임상 결과를 비교 평가하는 것이다. 대상 및 방법: 2007년 1월부터 2010년 2월까지 237명의 환자에서 대복재 및 소복재 정맥류 318개를 대상으로 980-nm 다이오드 레이저 또는 전통적인 발거술을 시행하였다. 첫 방문과 수술 후 1, 2, 6, 12, 18, 24, 36개월째 외래를 방문한 모든 환자를 대상으로 듀플렉스 초음파 검사와 Venous Clinical Severity Score (VCSS) 기록을 위한 임상검사 및 설문조사를 시행하였다. EVLT 및 정맥류 발거술의 두 치료군 간의 임상 결과를 비교하기 위해 수집된 모든 데이터를 이에 맞게 가공하여 분석하였다. 결과: 두 치료군 간에 관통정맥 부전의 수나 정맥 역류의 정도는 차이가 없었다. EVLT나 발거술로 대복재 및 소복재 정맥의 역류가 제거된 후 이 역류 제거 상태의 성공적인 유지율은 양 군간에 차이가 없었으며 12개월째 성공적인 유지율은 EVLT군이 $90.3{\pm}4.5%$, 발거술군이 $93.9{\pm}4.2%$였다. 전체적인 재발율은 EVLT군이 4.4%, 발거술군이 1.5%로 두 군간의 통계적인 차이는 없었다. VCSS 점수는 두 군 모두에서 수술 후 1주와 1개월, 2개월에 유의한 감소를 보였다. 결론: 대복재 및 소복재 정맥 부전의 제거에 대한 효율성이나 정맥 부전으로 인한 임상 경과의 수술 후 개선 능력 등에 있어 EVLT와 발거술은 비슷한 결과를 나타냈다.