• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.25 no.2
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• pp.147-162
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• 2022

Purpose: To design a prospective study on endovascular closure of congenital portosystemic shunts. The primary endpoint was to assess the safety of endovascular closure. The secondary endpoint was to evaluate the clinical, analytical and imaging outcomes of treatment. Methods: Fifteen patients (age range: 2 days to 21 years; 10 male) were referred to our center due to congenital portosystemic shunts. The following data were collected prior to treatment: age, sex, medical history, clinical and analytical data, urine trimethylaminuria, abdominal-US, and body-CT. The following data were collected at the time of intervention: anatomical and hemodynamic characteristics of the shunts, device used, and closure success. The following data were collected at various post-intervention time points: during hospital stay (to confirm shunt closure and detect complications) and at one year after (for clinical, analytical, and imaging purposes). Results: The treatment was successful in 12 participants, migration of the device was observed in two, while acute splanchnic thrombosis was observed in one. Off-label devices were used in attempting to close the side-to-side shunts, and success was achieved using Amplatzer™ Ductus-Occluder and Amplatzer™ Muscular-Vascular-Septal-Defect-Occluder. The main changes were: increased prothrombin activity (p=0.043); decreased AST, ALT, GGT, and bilirubin (p=0.007, p=0.056, p=0.036, p=0.013); thrombocytopenia resolution (p=0.131); expansion of portal veins (p=0.005); normalization of Doppler portal flow (100%); regression of liver nodules (p=0.001); ammonia normalization (p=0.003); and disappearance of trimethylaminuria (p=0.285). Conclusion: Endovascular closure is effective. Our results support the indication of endovascular closure for side-to-side shunts and for cases of congenital absence of portal vein.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1993.04b
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• pp.365-369
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• 1993

The reliability assessment of a simple porbabilistic fatigue analysis under random loading is proposed. Using the crack closure concept, the crack opening stress is assumed to be constant during random loading. The available loading history and test data are used for the comparison with the results of the reliability assessment of probabilistic fatigue analysis.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.14 no.12
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• pp.1047-1055
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• 2002

The present study is to investigate the pressure wave characteristics and the absorption of the maximum and minimum pressure generated by instantaneous valve closure and opening at the end of the straightening copper Piping system with and without an air chamber. Also, life of air chamber is investigated. Experiments were conducted under the following conditions: initial pressure of 1～5 bar, flow velocity of 0.5～3.0 m/s, water temperature of$20^{\circ}C$ and air chamber volume of 45.1～449.5$cm^3$ The results of the study can be used in sizing air chamber and selecting the water hammer absorbtion apparatus.

• Journal of Chest Surgery
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• v.23 no.6
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• pp.1238-1243
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• 1990

Bacterial endocarditis has been well recognized as an important complication of congenital heart disease. The most common. form of congenital heart disease is the VSD, of which natural history is spontaneous closure, pulmonary vascular disease, symptoms, and endocarditis. The incidence of endocarditis is relatively low. But endocarditis is almost universally fatal if untreated. Two cases of VSD with endocarditis, 4 \ulcorneryear male and 17 \ulcorneryear female, were treated at Department of Thoracic and Cardiovascular Surgery, Chonbuk National University. In the First case, the VSD was perimembranous type and vegetation located on the septal leaflet of the tricuspid valve. After 7 week medical treatment, simple closure of the VSD, removal of vegetation, and tricuspid annuloplasty were performed. In the second case. the VSD was subpulmonic type and the pulmonic valve was destructed due to vegetation. So the VSD was closed with interrupted 4 \ulcorner0 Prolene sutures and the pulmonic valve was excised. Postoperative course of all cases was uneventful.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.12 no.12
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• pp.1066-1072
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• 2000

This study is to investigate the pressure wave characteristics and the absorption of maximum and minimum pressure generated by instantaneous valve closure at the end of the straightening copper piping system with and without a water hammer arrester. Experiments were conducted under the following conditions : initial pressure 1~5 bar, flow velocity 0.6~3.0 m/s, water temperature $20^{\circ}C$ and air volume of water hammer arrester $80~180^cm^3$. Experimental results show that the optimum air volume of water hammer arrester is 110㎤.

• Journal of Chest Surgery
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• v.40 no.12
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• pp.851-854
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• 2007

A 76-year-old woman with a history of chest pain and palpitation, was diagnosed with bilateral coronary to pulmonary artery fistulae with a concomitant saccular aneurysm, which is quite rare. Suture closure of the fistular vessels around the pulmonary artery root, the removal of a saccular aneurysm, and the transpulmonary closure of coronary to pulmonary artery fistulae were performed. The patient was well at 4 months after surgery.

• 한국연소학회:학술대회논문집
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• 2006.04a
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• pp.111-120
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• 2006

The fully coupled conditional moment closure(CMC) model has been developed to realistically simulate the structure of complex turbulent nonpremixed syngas flame, in which the flame structure could be considerablyl influenced by the turbulence, transport history, and heat transfer as well. In order to correctly account for the transport effect, the CMC transport equations fully coupled with the flow and mixing fields are numerically solved. The present CMC approach has successfully demonstrated the capability to realistically predict the detailed structure and the overall combustion characteristics. The numerical results obtained in this study clearly reveal the importance of the convective and radiative heat transfer in the precise structure and NOx emission of the present confined combustor with a cooling wall.

• Journal of Korean Medical classics
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• v.30 no.3
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• pp.167-180
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• 2017

Objectives : The purpose of this paper is to extinguish the debates surrounding the sentences found in Suwen Kailun that deal with flocking to stomach and closure in lung. The paper seeks to do this through studying the assertions of historical doctors and their theories regarding the topic. Methods : The interpretations of annotators regarding these sentences were studied, and text DB was searched to collect and analyze materials related to the theories of the relationship between stomach and lung. Results : The sentences of flocking to stomach and closure in lung, judging from their contexts, seem to be related to the symptom of Sanjiao ke or Liufu ke. However, they may be pointing to internal organs' ke as a whole based on the close relationship between stomach and lung. They could mean either the abnormality of mechanism of stomach and lung could cuase ke or that Zhuoqi could accumulate inside of stomach to cause phlegm-fluids thereby blocking thorax and causing cough. Theory of Warm disease, too, provides a number of treatment suggestions for stomach, lung damages such as supporting Yin and dispersing dampness. Conclusions : The study of the sentences regarding flocking to tomach and closure in lung is expected to not only provide an analysis of the sentences, but also provide a perspective and a method for clinical treatments.

• Archives of Plastic Surgery
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• v.41 no.5
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• pp.576-583
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• 2014

Background Standard upper blepharoplasty involves removal of both the skin and a portion of the underlying orbicularis oculi muscle. The senior author had observed sluggishness of eyelid closure, lagophthalmos as well as varying degrees of eye irritation in certain patients during the early postoperative period. He postulated that these findings could be due to orbicularis muscle excision. He therefore undertook a prospective study 27 years ago comparing standard blepharoplasty on one eyelid to skin-only excision on the fellow eyelid. Methods A randomized, prospective, single-blinded study was designed using the fellow eye as an internal control. 22 patients undergoing upper blepharoplasty procedure requiring greater than 5 mm of skin resection and with no history of ophthalmologic disease, dry eye, or previous eyelid surgery were selected. Upper blepharoplasty was performed with skin-only removal on one side, and combined skin-muscle removal on the other side. Patients were evaluated until six months after surgery except for two patients who were lost to follow-up after three months. Sluggish eyelid closure, lagophthalmos, dry eye and aesthetic result were outcome measures scored by patient survey, the operating surgeon, and a blinded expert panel. Results There were comparable aesthetic outcomes in both eyelids. The incidence of sluggish eyelid closure, lagophthalmos and dry eye syndrome were significantly higher in eyelids where wide segments of muscle had been resected. Conclusions Muscle-sparing upper blepharoplasty produces similar aesthetic outcomes as conventional blepharoplasty, while significantly reducing the complications of sluggish eyelid closure, lagophthalmos and dry eye disease. The authors therefore recommend muscle-sparing upper blepharoplasty.

• The Journal of the Korean dental association
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• v.50 no.1
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• pp.13-21
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• 2012

In an edentulous situation, the dentist must make several determinations when constructing artificial teeth. These include vertical and horizontal relationships of mandible with respect to the maxilla, occlusal form and position, vertical dimension, occlusal relationships during both centric closure and eccentric excursive movements. Artificial teeth are attached to a movable base resting on movable and displaceable living tissue subject to damage. They act as a unit; therefore, they must be arranged to function as a unit. Bilateral balanced occlusion is that stability of the denture is attained when bilateral contacts ex ist throughout all dynamic and static states of the denture during function. Lateral excursion in a balanced scheme implies simultaneous working side and nonworking side contact, while occlusal contacts are maintained on both anterior and posterior teeth as the mandible moves anteriorly into protrusion.