• Journal of Korean Neurosurgical Society
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• 제57권2호
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• pp.127-130
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• 2015

A 59-year-old female presented with progressive right proptosis, chemosis and ocular pain. An imaging work-up including conventional catheter angiography showed a right-sided dural arteriovenous fistula of the cavernous sinus, which drained into the right superior petrosal sinus, right superior ophthalmic vein, and right inferior ophthalmic vein, and cortical venous reflux was seen via the right petrosal vein in the right posterior fossa. After failure of transvenous embolization, the patient underwent Gamma Knife radiosurgery (GKRS). At one month after GKRS, she developed increasing ocular pain and occipital headache. Repeat angiography showed partial obliteration of the fistula and loss of drainage via the superior and inferior ophthalmic veins with severe congestion, resulting in slow flow around the right cerebellar hemisphere. Prompt transarterial embolization relieved the patient's ocular symptoms and headache. We report on a case of paradoxical exacerbation of symptoms resulting from obstruction of the venous outflow after GKRS for treatment of a dural arteriovenous fistula of the cavernous sinus.

• Journal of Chest Surgery
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• 제23권6호
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• pp.1221-1224
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• 1990

Fifty -six cases of tuberculous peripleural abscess were experienced in the department of thoracic and cardiovascular surgery, college of medicine, Hallym university from January 1980 to June 1990. Tuberculous peripleural abscess seems to originate from the space between the parietal pleura and endothoracic fascia. But rib caries, originated by hematogenous spread of mycobacteria to the rib, shows the rib destruction first, thereafter periosteal erosion and regional tissue involvement follows. In our 56 cases, results were as follows: 1. Their age ranged from 6 to 82 years, and female dominant [M: F=21: 35]. 2. The locations of abscess were 31 right, 23 left, and 2 sternal portions. 3. On X \ulcornerray findings, 37 cases showed active or old lesion of the tuberculosis in the lung field, 7 cases periosteal destruction of the ribs, and 29 cases pleural thickening. 4. Operative findings showed cold abscess with multiple fistulous tracts leading to intercostal space in most of the cases, and their origin were presumed to be from the space between the endothoracic fascia and parietal pleura. 5. The pus showed negative AFB stain in most of the cases except 3 cases. 6. Partial costectomy and radical curettage with drainage were performed in all cases. 7. 7 cases recurred after the first operations, but no recurrence after second operations.

• Archives of Reconstructive Microsurgery
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• 제8권2호
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• pp.184-191
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• 1999

Reconstruction of soft tissue defect of the foot, ankle and distal tibial area has been and remains a challenging problem for reconstructive surgeons. We treated 19 patients who showed soft tissue defect in these area with distally based superficial sural artery flaps, including four adipofascial flaps, two sensate flaps. The size of the soft tissue defect was from $4{\times}5cm\;to\;8{\times}10cm$. In nine cases, we preserved sural nerve. Seventeen flaps survived completely, but one flap failed and another flap showed partial skin necrosis at the distal half. In failed cases, lesser saphenous vein was ruptured at initial injury. The advantage of this flap is a constant and reliable blood supply without sacrifice of major artery or sensory nerve. Elevation of the flap is technically easy and quick. The pedicle is long and the island flap can be transffered as far as to the instep area. It also has the potential for sensate flap, innervated by the lateral sural cutaneous nerve. But for appropriate venous drainage small saphenous vein must be preserved.

• 자원환경지질
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• 제26권2호
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• pp.217-226
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• 1993

Stream sediment samples were collected in the vicinity of the Sambo Pb-Zn-barite mine in order to investigate dispersion patterns and pollution levels of heavy metals, and to find out their mode of occurrences. Those samples were analyzed for Cd, Cu, Pb, Zn, Fe, and Mn by using partial extraction and sequential extraction methods. Stream sediments of this studied area has been contaminated severely by Pb, Zn, and Cd. Dispersion patterns of heavy metals in those sediments are different according to their pollution source and sampling distance from the mine. The stream sediment pH is generally neutral in control area, and is slightly acidic in the lower part of tailing dam. The main pollution source of stream sediments was confirmed as tailing and mine drainage. Their pollution level depends mainly on inflowed water and distance from the mine. The tolerance index ranges from -0.9 to 0.7. The mode of occurrances of heavy metals in polluted stream sediment are identified as Fe-Mn oxides, organic bounded and carbonate-bounded compound which show high potential of bioavailablity.

• 한국지반공학회지:지반
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• 제9권2호
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• pp.27-40
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• 1993

한 개의 공시체에 대해 일정한 크기의 높은 구속압력을 가하고, 단계별로 압밀배수시간을 조정하여 압밀비배수 삼축압축시헙을 할 수 있는 방법을 이 논문에서 제안하였다. 이 방법으로 시험하면 하나의 공시체로 여러 단계의 시험을 하여 강도정수를 구할 수 있음은 물론 시험시간이 종전의 다단계시험에 비해 현저히 절약된다. 이 시험에 대한 적합성을 증명하기 위하여 불교란 시료와 재성형시료에 대해 표준압축시험과 재래의 다단계시험을 수행하고 그 결과를 비교하였다. 여기서 제안하는 시험방법으로 결정된 강도정수는 다른 시험방법으로 얻은 강도정수와 잘 일치하였으며, 이 방법이 대단히 효과적이고 실용적이라는 것을 입증하였다.

• Advances in pediatric surgery
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• 제11권2호
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• pp.186-191
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• 2005

A 10-year-old-girl was referred to our hospital due to abdominal pain. She underwent Roux-en-Y cystojejunostomy for a choledochal cyst at another hospital at the age of 3 months. Abdominal ultrasonography (USG) and computed tomography (CT) showed type I choledochal cyst and multiple gallbladder stones. Because of severe inflammation and adhesion, partial resection of the choledochal cyst and Roux-en-Y hepaticojejunostomy was performed. Two and one half years later, intermittent abdominal pain, fever, nausea and vomiting occured. Abdominal CT scan showed a polypoid nodular lesion in the remnant of the choledochal cyst and probable metastasis at segment 7 of the liver. The duodenum was obstructed by the mass. Liver biopsy revealed moderately differentiated adenocarcinoma. A palliative gastrojejunostomy was performed to relieve duodenal obstruction. She died of hepatic insufficiency 4 months later.

• Advances in pediatric surgery
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• 제9권1호
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• pp.30-34
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• 2003

Spontaneous gastric perforation in the newborn is a rare disease that requires early diagnosis and prompt surgical treatment. Between 1988 and 2001 at the Department of Pediatric Surgery. Kyungpool National University Hospital, 9 cases of spontaneous gastric perforation were treated. Seven were males and two females. The mean gestational age and birth weight were 36.7 weeks and 2,455 g respectively. All patients presented with severe abdominal distention and pneumoperitoneum on cross table lateral film of the abdomen. Perforations were located on the anterior wall along the greater curvature of the stomach in six and on the posterior wall along the greater curvature in two. One case showed two sites of perforation on the anterior and posterior wall along the greater curvature. Six patients were managed with debridement and primary closure and the others with debridement and partial gastrectomy. Peritoneal drainage was not performed. There were four deaths; two from sepsis due to leakage from the anastomotic site, one as a result of acute renal failure, and the other by associated respiratory distress syndrome. Spontaneous gastric perforation in the newborn is usually located along the greater curvature. Elevated intragastric pressure is a possible cause of the perforation. Poor prognosis is related to associated diseases and prematurity.

• Tuberculosis and Respiratory Diseases
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• 제40권4호
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• pp.449-453
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• 1993

A 64-year-old male was admitted due to abruptly developed, severe dyspnea via local clinic. He had been a heavy smoker and alcoholic for a long time. Chest PA showed huge haziness in right upper lung field. Sputum culture for bacteriology was positive for Klebsiella pneumoniae. Immediately, appropriate antibiotics were administered and artificial ventilation was started. On 40th hospital day, simple chest roentgenogram taken due to sudden aggravated dyspnea showed marked hyperlucency in right upper lung field, suggestive of rupture of abscess cavity and resultant pneumothorax. At that time, chest tube was inserted but air leakage from the chest tube persisted. Chest CT scan taken after chest tube insertion showed the tube inserted into a thin-walled cavity in the above lesion. on 84th hospital day, right upper lobectomy with decortication was performed. Pathologically, cavittary lung abscess was diagnosed on the findings of partial re-epithelialization of ciliated columnar epithelium with severe pulmonary vascular occlusion and extensive fibrous pleural adhesions.

• Archives of Plastic Surgery
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• 제47권1호
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• pp.97-101
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• 2020

Although the success rate of deep inferior epigastric perforator (DIEP) flaps has increased, late flap failures still occur and have a low salvage rate. The present article describes a case of salvage of a case of late flap failure using the pedicle vein as a vein graft source. A 50-yearold woman underwent a bilateral DIEP free flap procedure. On postoperative day 6, she experienced flap compromise and underwent emergency flap revision. In the flap revision, flap venous drainage and the superficial inferior epigastric vein were completely obstructed. A Fogarty catheter was used to remove a thrombus from the completely obstructed pedicle vein, and this pedicle vein was used as a graft source and was ligated in retrograde fashion to the flap vein stump. After injection of urokinase into the arterial branch, venous flow to the flap was restored. At a 6-month follow-up visit in the outpatient clinic, only partial fat necrosis at the flap was noted. By dissecting various perforators in the initial operation, decisions regarding immediate revision can be made with more confidence. Additionally, the combined procedures performed in this case may be helpful even for practitioners treating cases of late flap compromise.

• Geomechanics and Engineering
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• 제6권2호
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• pp.195-211
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• 2014

Stone columns (or granular column) have been used to increase the load carrying capacity and accelerating consolidation of soft soil. Recently, the geosynthetic reinforced stone column technique has been developed to improve the load carrying capacity of the stone column. In addition, reinforcement prevents the lateral squeezing of stone in to surrounding soft soil, helps in easy formation of stone column, preserve frictional properties of aggregate and drainage function of the stone column. This paper investigates the improvement of load carrying capacity of isolated ordinary and geotextile reinforced sand column through field load tests. Tests were performed with different reinforcement stiffness, diameter of sand column and reinforcement length. The results of field load test indicated an improved load carrying capacity of geotextile reinforced sand column over ordinary sand column. The increase in load carrying capacity depends upon the sand column diameter, stiffness of reinforcement and reinforcement length. Also, the partial reinforcement length about two to four time's sand column diameter from the top of the column was found to significant effect on the performance of sand column.