• Journal of Chest Surgery
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• v.6 no.2
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• pp.159-164
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• 1973

Bronchopulmonary sequestration is a congenital malformation characterized by a cystic portion of the lung that derives its arterial blood supply through anomalous aberrant vessel directly of the systemic circulation. An aberrant systemic vessel supplying the lung was reported by Huber in 1777. Although this lesion is uncommon disorder, there are several reports on operative death caused by exanguinating hemorrhage from the aberrant arteries to the bronchopulmonary sequestration to that it has received a great deal of attention. Two type of bronchopulmonary sequestration have been identified: Intralobar pulmonary sequestration is usually contained within the visceral pleura of a pulmonary lobe and its venous drainage to the pulmonary venous system. Extrapulmonary sequestration is usually within the pleural sheath its own and its vasculature drains into the azygos or hemiazygos system. we presented one case of intralobar pulmonary sequestration which led to motor paralysis, chylothorax and hemorrhage that are consequent on postoperative complication.

• Journal of Chest Surgery
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• v.28 no.6
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• pp.596-600
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• 1995

A total of 21 patients with pulmonary sequestration who had undergone surgical treatment were reviewed at the department of thoracic and cardiovascular surgery of catholic university medical college from May 1983 through May 1993. The pulmonary sequestration was intralobar in 19 patients, and extralobar in 2 patients. There were 17 woman and 4 man ranging of age from 17 months to 48 years with a mean age of 21.3 years. Clinical manifestations were varied from no symptom[3 cases to recurrent pneumonia[15 cases , and hemoptysis[3 cases . Preoperative diagnosis was correct in only 6 cases[29% of the 21 patients of pulmonary sequestration . The left lower lobe[11 cases is most often affected in intralobar sequestration. The aberrant artery in intralobar sequestration originated in 13 cases[68% of 19 cases from descending aorta. 15 of the 19 patients of intralobar type underwent lobectomy. The extralobar sequestration[2 cases were simply excised. There was no mortality and no complication.

• Journal of Chest Surgery
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• v.27 no.3
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• pp.241-243
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• 1994

This is a case report of extralobar pulmonary sequestration with bronchogenic cyst located in aorto-pulmonary window area of left thorax in a 17 months old male patient. In this case, a bronchogenic cyst was presented immediately adjacent to the extralobar pulmonary sequestration. Communication between the extralobar pulmonary sequestration and bronchogenic cyst was not seen grossly or microscopically. The lesion was simply excised and the postoperatively course was uneventful.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.21 no.3
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• pp.13-26
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• 2018

This study estimated the carbon sequestration from urban green spaces in Ansan City using environmental spatial information. We examined study results of carbon sequestration from existing urban green spaces, using a land cover map (level 3). In particular, the carbon sequestration of trees by land use and the IPCC Global default value were linked with the land cover map level 3. Domestic research showed that carbon storage in urban green spaces in Ansan City was 17,927.2 tC, and the annual carbon sequestration was calculated as 2,680.5 tC/yr. On the other hand, applying the IPCC Global Default value resulted in annual carbon sequestration of 5,287.8 tC/yr, which was 2,607.3 tC/yr more that the domestic research value. This resulted from difference in detailed methodologies such as background data, sample size for on-site investigation, and measurement of tree species. The study presented a consistent assessment method to assess the sequestration of carbon from municipal urban green spaces. Furthermore, we provided basic data that could be useful in urban green space policies.

• Journal of Chest Surgery
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• v.15 no.1
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• pp.27-34
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• 1982

Pulmonary sequestration Is an unusual congenital malformation characterized by the presence of nonfunctioning lung tissue which usually has no communication with the normal bronchial tree and which receives its blood supply from an anomalous systemic artery instead of a pulmonary arterial branch. Two forms of pulmonary sequestration occur: Intralobar sequestration, in which the abnormal pulmonary tissue is incorporated within the normal lung and shares a common covering of visceral pleura, and extralobar sequestration, in which the abnormal pulmonary tissue is separated from the normal lung and has its own pleural investment. Since 1970, five cases of pulmonary sequestration were operated at the Department of Thoracic and Cardiovascular Surgery, College of Medicine, Seoul National University. 1. Among five cues, one was male and the others were female. 2. All were intralobar type and involved left lower lobe. 3. There was no operative mortality following left lower lobectomy and ligation of the aberrant artery.

• Journal of Chest Surgery
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• v.49 no.6
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• pp.475-477
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• 2016

Elevated carbohydrate antigen (CA) 19-9 can indicate malignancies of the gastrointestinal, pancreatic, and biliary tracts, and be found in a pulmonary sequestration. A 30-year-old man visited Seoul National University Bundang Hospital due to elevated CA 19-9 levels, representing pulmonary sequestration of the bilateral lower lobes, which were connected with each other. We performed left lower lobectomy and division of the systemic arteries. After operation, CA 19-9 levels decreased to normal range, even though a small amount of sequestrated lung remained in the right lower lobe. It is not uncommon that presence of pulmonary sequestration might elevate serum CA 19-9 levels; however, horseshoe type bilateral pulmonary sequestration is very rare.

• Journal of Pharmacopuncture
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• v.14 no.3
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• pp.99-107
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• 2011

Objectives : The purpose of this study is to report the image changes of two cases of Lumbar intervertebral Disc Sequestration after oriental medical treatment. Methods : We examined 2 patients with Lumbar intervertebral Disc Sequestration who showed changes on MRI images before/after the treatment. And we assessed clinical symptoms by using numeric rating scale(NRS) and straight leg raising test(SLRT). Results & Conclusions : In this study, the first MRI examination of Lumbar intervertebral Disc Sequestration patients was performed at the first visit and re-examination of MRI was done after treatment. In each case, the size of the disc sequestration was considerably reduced in MRI image. And both patients represented effective improvment in NRS score and SLRT test angle.

• Journal of Korean Society of Forest Science
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• v.98 no.3
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• pp.324-330
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• 2009

The objective of this study is to estimate the carbon sequestration in forest stands using KOMPSAT-2 imagery. For estimating the amount of carbon sequestration, the stand biomass of forest was estimated with the total weight, which was the sum of individual tree weight. Individual tree volumes could be estimated by the crown width extracted from KOMPSAT-2 imagery. In particular, the carbon conversion index and the ratio of the $CO_2$ molecular weight to the C atomic weight, reported in the Intergovernmental Panel on Climate Change (IPCC) guideline, was used to convert the stand biomass into the amount of carbon sequestration. Thereafter, the KOMPSAT-2 imagery was classified with the segment based classification (SBC) method in order to quantify carbon sequestration by tree species. This approach, estimating the amount of carbon sequestration for certain species in stand, can be available to extend plot-based carbon sequestration to stand-based carbon sequestration.

• Advances in pediatric surgery
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• v.15 no.2
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• pp.173-179
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• 2009

Congenital thoracic malformations such as intra- and extra-pulmonary sequestration, cystic adenomatoid malformation, congenital pulmonary airway malformation, malinosculation, bronchogenic cyst, reduplication cyst, and foregut cyst are frequently detected on routine prenatal ultrasound. There are some controversies about treatment for postnatally persistent pulmonary sequestration. Some authors recommend expectant long term follow up but most authors advocate elective surgical excision because of complication such as respiratory distress, infection, intrathoracic bleeding, haemoptysis, cardiac failure, and potential risk of malignancy. We experienced 2 cases of prenatally diagnosed extrapulmonary sequestration which were located in the subdiaphragmatic retroperitoneum. Resections were performed at 2 months and 4 months of age using intraabdominal approach. There were no complications. In conclusion, if the prenatally diagnosed extrapulmonary sequestration remained postnatally, early operation might reduce morbidity related to extrapulmonary sequestration and parental anxiety without any postoperative complication.

• Journal of Chest Surgery
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• v.27 no.11
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• pp.961-964
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• 1994

The pulmonary sequestration is an uncommon congenital anomaly characterized by the presence of nonfunctioning lung tissue supplied by aberrant artery from the aorta or its branches and usually has no communication with the normal bronchial tree. The patient was 35 year old female and had no specific complaints. The lung mass was found incidentally and was continned to be intralobar pulmonary sequestration by aotography whitch showed aberrant blood supply from thoracic aorta at the T. vertebra level. The right lower lobectomy was done.