1.Minimally Invasive Surgery for Esophageal Cancer.
The Korean Journal of Gastroenterology 2007;50(4):226-232
Minimally invasive surgery is now rapidly developing and becoming a standard surgical option in some fields. In the past, many thoracic surgeons were reluctant to adopt minimally invasive techniques in esophageal cancer surgery due to concern over the oncologic perspectives and technical difficulties. However, over the last few years, thoracic surgeons have progressively embraced the technical advancements and now many experienced centers have adopt minimally invasive surgery as a primary option for non-advanced esophageal cancer operations. In esophageal cancer surgery, the volume of operation performed in some hospital is closely related to the outcome of patients, and the experiences of surgical team play an important role in minimally invasive surgery. Minimally invasive esophageal surgery (MIES) has steep learning curves, also. The merits of MIES are as follows. The conventional esophageal cancer operation has two or triple incisions, resulting in high postoperative morbidity and mortality. However, postoperative complication in MIES became less frequent than conventional surgery. The patient's satisfaction is high. Mid-term outcomes of MIES have been reported that it is safe and feasible in esophageal cancer and survival curves are similar to those of conventional surgery. Therefore, MIES is a valuable therapeutic modality for both esophageal cancer patients and thoracic surgeons.
Esophageal Neoplasms/*surgery
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Humans
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Laparoscopy/methods
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Surgical Procedures, Minimally Invasive/methods
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Thoracoscopy/methods
2.The Pattern of Fhit and p53 Expression in Cervical Intraepithelial Neoplasm and Invasive Cervical Cancer.
Seon Ha JOO ; Na Hye MYONG ; Jin Wan PARK
Korean Journal of Obstetrics and Gynecology 2004;47(12):2403-2048
OBJECTIVE: To evaluate Fragile histidine triad (Fhit) and p53 expression pattern in cervical intraepithelial neoplasm (CIN) and invasive cervical cancer, and to verify the correlation between the loss of Fhit and clinicopathological parameters of invasive cervical carcinoma and the relationship between Fhit and p53 expression. METHODS: 10 low-grade squamous intraepithelial lesions (LSIL), 16 high-grade squamous intraepithelial lesions (HSIL), and 21 invasive cervical carcinomas were evaluated by immunohistochemical staining for Fhit and p53 primary antibody. Their expression patterns in CIN and invasive cervical cancer were analysed semiquantitatively as positive and negative by the staining area and intensity. Clinicopathological data were obtained by review of patients' hospital records. RESULTS: Compared with CIN (LSIL and HSIL), invasive cervical carcinoma showed significantly loss of Fhit expression (p<0.05). P53 expression did not show the significant difference between CIN and invasive cervical cancer. There was no relationship between loss of Fhit and p53 expression in CIN and invasive cervical cancer. But loss of Fhit expression in invasive cervical cancer was also significantly associated with FIGO stage (p<0.05). CONCLUSION: Our results suggest that loss of Fhit expression may play an important role in the malignant transformation of CIN to invasive cancer. However, further molecular studies are needed to elucidate the role of Fhit gene in the carcinogenesis of cervical cancer.
Carcinogenesis
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Cervical Intraepithelial Neoplasia*
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Histidine
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Hospital Records
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Uterine Cervical Neoplasms*
3.Early Results in Surgical Treatment of Thoracic Aortic Aneurysm.
Byoung Hee AHN ; Seong Hyeon SHIN ; Kook Joo NA
The Korean Journal of Thoracic and Cardiovascular Surgery 1997;30(7):686-692
This study represents an attempt to present an analysis of early surgical results in 15 cases of aortic surgery conducted at Chonnam University Hospital between February 1994 to August 1995. The subject, 9 males and 6 females, ranged in age from 32 to 73 years with a mean age of 55.07+/-11.76 years. The patients were treated for dissecting aortic aneurysm in nine, atherosclerotic aneurysm in 4, and traumatic aortic aneurysm in two. There were 9 cases of median sternotomy, 4 cases of posterolateral thoracotomy, and 2 cases of thoracoabdominal incision. Graft replacement of ascending aorta and/or partial or total aortic arch were performed in 9 patients, descending aorta and/or thoracoabdominal aorta in 3 and total aorta in 1. Two traumatic aortic aneurysms were closed directly. Associate procedures were resuspension of aortic valve in three patients and elephant trunk procedure, coronary reimplantation and aortic valve replacement in one patient. Nine patients underwent operation for ascending aorta and/or aortic arch with retrograde cerebral perfusion during deep hypothermia and circulatory arrest. Perfusion pressure was maintained below 25 mmHg and the mean duration of circulatory arrest was 56.67+/-29.25 minutes. Three patients underwent graft replacement of desending thoracic and thoracoabdominal aorta during deep hypothermia and circulatory arrest. Three patients died of traumatic bile peritonitis, multioragn failure, and rupture of residual dissecting aortic aneurysm by malignant hypertension. Postoperative complications included reoperation for bleeding in 4 patients, temporary confusion in 3, pulmonary complication in 3, and pericardial effusion in 1.
Aneurysm
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Aorta
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Aorta, Thoracic
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Aortic Aneurysm
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Aortic Aneurysm, Thoracic*
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Aortic Valve
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Bile
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Elephants
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Female
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Hemorrhage
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Humans
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Hypertension, Malignant
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Hypothermia
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Jeollanam-do
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Male
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Perfusion
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Pericardial Effusion
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Peritonitis
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Postoperative Complications
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Reoperation
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Replantation
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Rupture
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Sternotomy
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Thoracotomy
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Transplants
4.Evaluation of R Wave Amplitude Changes on Treadmill Exercise Testing.
Byung Soo AHN ; Tae Joon KIM ; Hyun NA ; Kook Won SUH ; Sung Gu KIM ; Young Joo KWON
Korean Circulation Journal 1985;15(2):203-208
For the evaluation of exercise induced R wave amplitude changes in lead V5 (big up tri, openR) and multiple leads(summation operatorR), we studied 20 normal subjects and 21 ischemic heart disease patients with positive exercise test. All underwent submaximal, multiple leads multistage treadmill exercise testing. 14 to 20 normal subjects(70%) there were decreased R wave amplitude in multiple leads on treadmill exercise testing. 16 of 21 patients(76%) there were increased R wave amplitude on treadmill exercise testing. In normal group, R wave amplitude between rest and exercise was significantly decreased in lead V5 and multiple leads. In patients grous, R wave amplitude between rest and exercise was significantly increased in lead V5 and multiple leads. It is suggested exercise induced R wave amplitude changes probably enhance the diagnostic reliability by ST segment changes on treadmill exercise testing.
Exercise Test*
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Humans
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Myocardial Ischemia
5.Doppler Echocardiographic Determination of the Time of Ductal Closure in Normal Newborn Infants.
Dong Joo NA ; Hyung Kook KIM ; Jong Wan KIM ; Sang Min SEONG ; Kyong Su LEE ; In Soo PARK
Journal of the Korean Pediatric Society 1988;31(6):747-753
No abstract available.
Echocardiography*
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Humans
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Infant, Newborn*
6.Reversible Homonymous Hemianopia Associated with Focal Hyperperfusion in Hyperglycemic State
Byung Kook JEONG ; Joo Yeon LEE ; Wooseong SON ; Sang-Jun NA
Journal of the Korean Neurological Association 2024;42(1):57-61
Hyperglycemic state frequently presents with neurologic manifestations including choreoathetosis, ballismus, dysphagia, seizures, and coma. Also, hyperglycemic hemianopia has been rarely reported to cause temporary damage to the visual cortex, resulting in homonymous hemianopia. A 65-year-old man was admitted because of right homonymous hemianopia accompanied by hyperglycemia. Brain single-photon emission computed tomography showed focal hyperperfusion in the left occipital lobe. Herein we report a case of reversible homonymous hemianopia with cerebral hyperperfusion associated hyperglycemia without seizure.
7.Distinction of Pulmonary Large Cell Neuroendocrine Carcinoma from Small Cell Lung Carcinoma Using a Panel of Bcl-2, p63, and 34betaE12.
Jun Zhe LI ; Chan CHOI ; Yoo Duk CHOI ; Kook Joo NA
Korean Journal of Pathology 2011;45(2):170-174
BACKGROUND: Making the distinction between large cell neuroendocrine carcinoma (LCNEC) and small cell lung carcinoma (SCLC) is difficult in some samples of biopsy tissues, but we have to separate LCNEC from SCLC because the two types of cancer may need different therapy and they have different prognostic implications. Thus far, there are no specific immunohistochemical markers that allow distinguishing these two kinds of tumors. METHODS: We performed an immunohistochemical analysis to study the expressions of p63, Bcl-2, and 34betaE12 and to investigate whether these 3 molecules have correlations in LCNEC and SCLC. We also evaluated the expression of the neuroendocrine markers chromogranin, synaptophysin and CD56. RESULTS: A statistical analysis was performed for p63, Bcl-2, and 34betaE12 in separate and combined panels. According to the combinations of p63, Bcl-2, and 34betaE12, there were frequent expressions of p63-/Bcl-2+ or Bcl-2+/34betaE12- in the SCLC, and there was a superior proportion of them in the SCLC rather than that in the LCNEC. The p63-/Bcl-2+ and Bcl-2+/34betaE12- antibody combinations showed higher specificities compared to any single antibody for diagnosing SCLC. CONCLUSIONS: Bcl-2 and selective p63 or 34betaE12 made up a most useful panel of markers for making the differential diagnosis of LCNEC and SCLC.
Biopsy
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Carcinoma, Neuroendocrine
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Diagnosis, Differential
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Small Cell Lung Carcinoma
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Synaptophysin
8.Fixation Methods for Implantable Port Chamber: Comparative Study Using Glue, Self-stabilizing Leg and Suture Fixations in Rabbits.
Hyoung Il NA ; Hyung Jin SHIM ; Byung Kook KWAK ; Hyeon Joo KIM ; Yong Cheol LEE
Korean Journal of Radiology 2004;5(4):266-273
OBJECTIVE: To evaluate the fixation strength and tissue reaction of the glue fixation and self-stabilizing leg fixation methods and to compare the results with those of the conventional tagging suture fixation method. MATER AND METHODS: Twelve healthy rabbits were selected and three different methods of implanting the port chamber were employed on the back of each rabbit. A total of thirty six port chambers were implanted with these three different methods, viz. the glue fixation method using tissue adhesive, the self-stabilizing leg method using a self-expandable stabilizing leg, and the suture fixation method. The fixation strength and the gross and histopathologic changes of each fixation method were evaluated at three days, one week, two weeks and four weeks after port implantation. RESULTS: The glue fixation method showed a good fixation strength, which was similar to that of the tagging suture method (p=0.3486). Five of the six ports (83%) implanted with the glue fixation method which were examined after two weeks showed cracks on the external surface, but this had no adverse effects on their function. A large amount of granulation tissue reaction was found at the bottom of the chamber (p=0.0025). The fixation with the self-stabilizing leg showed relatively lower fixation strength (p=0.0043), but no turning-over of the chamber occurred. The fixation strength improved with time after the first week, and minimal granulation tissue reaction was observed with this method. CONCLUSION: The glue fixation method exhibited equal fixation strength compared to the suture fixation, but showed cracking and a large amount of granulation tissue, whereas the fixation with a self-stabilizing leg showed weaker fixation strength.
Alloys
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Animals
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Capillaries/cytology/metabolism/pathology
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Cell Proliferation
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Device Removal
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Enbucrilate/therapeutic use
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*External Fixators
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Fibroblasts/metabolism/pathology
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Granulation Tissue/blood supply/metabolism/pathology
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*Implants, Experimental
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Models, Animal
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Rabbits
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Sutures/*utilization
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Time Factors
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Tissue Adhesives/*therapeutic use
9.Hemostasis of Anastomotic Site by Wrapping with Artificial Vascular Graft.
Sang Yun SONG ; Won Chae JANG ; Kook Joo NA ; Sang Hyung KIM ; Byoung Hee AHN
The Korean Journal of Thoracic and Cardiovascular Surgery 2001;34(8):648-650
Bleeding from anastomotic site in operation for aorta has been troublesome, because it has influence on postoperative morbidity and mortality. Therefore, hemostasis is very important. We describe a simple and effective method for achieving hemostasis of the anastomotic site in aortic surgery. By wrapping around anastomotic site with remnant artificial vascular graft, we have acquired good results.
Aorta
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Hemorrhage
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Hemostasis*
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Mortality
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Transplants*
10.The Clinical Effects of Surgical Treatment for Hemoptysis due to Inflammatory Lung Disease.
Jusik YUN ; Kook Joo NA ; Jay Key CHEKAR ; In Seok JEONG ; Sang Yun SONG ; Sang Gi OH
The Korean Journal of Thoracic and Cardiovascular Surgery 2010;43(2):144-149
BACKGROUND: Many studies have demonstrated the various therapeutic options for treating hemoptysis caused by inflammatory lung disease. However, there is debate over the surgical management of the ongoing hemoptysis. Therefore, we evaluated the clinical results of pulmonary resection that was done due to hemoptysis in patients with concomitant inflammatory lung disease. MATERIAL AND METHOD: We performed a retrospective analysis of 75 patients who received pulmonary resection for hemoptysis and concomitant inflammatory lung disease between 2001 and 2007. The mean age was 52.1+/-12.5 years old, and the male; female ratio was 52:23. RESULT: The underlying disease was aspergilloma in 30 patients (40%), pulmonary tuberculosis in 20 patients, bronchiectasis in 18 patients and other causes in 7 patients. The surgical treatment included lobectomy in 55 patients, bilobectony in 2 patients, pneumonectomy in 17 patients and wedge resection in 1 patient. There were 3 early deaths, and the causes of death were pneumonia in 1 patient and BPF in 2 patients. The early mortality was statistically higher for such risk factors as a preoperative Hgb level <10 g/dL, COPD and an emergency operation. CONCLUSION: In conclusion, pulmonary resection for treating hemoptysis showed the acceptable range of mortality and it was an effective method for the management of hemoptysis in patients with inflammatory lung disease. However, relatively high rates of mortality and morbidity were noted for an emergency operation, and so meticulous care is needed in this situation.
Bronchiectasis
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Cause of Death
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Emergencies
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Female
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Hemoptysis
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Humans
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Lung
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Lung Diseases
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Pneumonectomy
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Pneumonia
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Pulmonary Disease, Chronic Obstructive
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Retrospective Studies
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Risk Factors
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Tuberculosis, Pulmonary