1.Granular Cell Tumor Arising from the Left Main Bronchus : A case report.
Yeon Ho SEO ; Kyung Hwa KIM ; Nan Yeol KIM ; Ja Hong KUH
The Korean Journal of Thoracic and Cardiovascular Surgery 2006;39(3):244-247
Granular cell tumors (GCT) are uncommon benign neoplasms. Their location is mostly in the the skin, tongue, and breast; appearance in other parts of the body is rare, but it has been reported. They have also been reported to occur synchronously in multiple organs and metachronously in a single organ. The incidence of GCTs in the tracheobronchial tree is unknown and pulmonary GCTs are uncommon, with approximately 100 reported cases in the literature. We present the case of a 33-year-old man with a granular cell tumor of the left main bronchus. The tumor was found at bronchoscopy performed to exclude suspected endobronchial mass with symptoms of pneumonia. Biopsies revealed the histological pattern of a benign granular cell tumor. He underwent resection of the left main bronchus followed by end to end anastomosis of left main bronchus. He has not had any recurrence of the tumor during the 1 year follow-up.
Adult
;
Biopsy
;
Breast
;
Bronchi*
;
Bronchial Neoplasms
;
Bronchoscopy
;
Follow-Up Studies
;
Granular Cell Tumor*
;
Humans
;
Incidence
;
Pneumonia
;
Recurrence
;
Skin
;
Tongue
2.Clinical Results of Pulmonary Resection for Hemoptysis of Inflammatory Lung Disease.
Yeon Ho SEO ; Nan Yeol KIM ; Ja Hong KUH ; Min Ho KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2005;38(10):705-709
BACKGROUND: To assess the outcome of pulmonary resection in the management of hemoptysis caused by benign inflammatory lung disease. MATERIAL AND METHOD: A longitudinal cohort study of 45 consecutive patients who were presented with hemoptysis and were treated with pulmonary resection from January 1995 to May 2004. The predictive preoperative risk factors of morbidity and recurrence of hemoptysis were analyzed. The mean age of the patients was 47.1 years. The mean follow-up was 35+/-34 months. RESULT: The overall hospital mortality rate was 4.4% (2/45). Postoperative complications occurred in 8 patients (18.6%). Complications were more common in patients who received blood transfusion than non-transfused patients (p=0.002). Patients with tuberculous destroyed lung disease had more amount of preoperative hemoptysis (p=0.002), more probability of transfusion (p=0.001), more probability of undergoing pneumonectomy (p=0.039) and more probability of postoperative morbidity. Patients of undergoing pneumonectomy had more probability of reoperation due to postoperative bleeding (p=0.047). Hemoptysis recurred in five patients but three had been subsided and two sustained during follow-up. A latter two patients had been prescribed with antituberculosis medication due to relapse of tuberculosis. CONCLUSION: A tuberculous destroyed lung disease has a higher rate of postoperative morbidity than other inflammatory lung diseases. A pneumonectomy in patients of inflammatory lung disease should be performed with great caution especially because of postoperative bleeding. Future study with longer and larger follow-up might show the reasons of recurrence of hemoptysis.
Blood Transfusion
;
Cohort Studies
;
Follow-Up Studies
;
Hemoptysis*
;
Hemorrhage
;
Hospital Mortality
;
Humans
;
Lung Diseases*
;
Lung*
;
Pneumonectomy
;
Postoperative Complications
;
Recurrence
;
Reoperation
;
Risk Factors
;
Tuberculosis
3.Myocardial Hamartoma Involving the Posterior Left Ventricular Wall: Surgical Experience of One Case.
Yeon Ho SEO ; Nan Yeol KIM ; Kong Soo KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2006;39(6):486-489
A 16 year-old boy was admitted to our department because of mild chest discomfort and mild dyspnea. A mass involving posterior wall of the left ventricle near posterior mitral annulus was found on echocardiography and cardiac MRI. Total excision of the mass was performed via posterior ventriculotomy under the cardiopulmonary bypass. The pathologic diagnosis revealed mature cardiac myocyte hamartoma. There was no evidence of arrhythmia and tumor recurrence during the 1 year of follow up after the surgery.
Adolescent
;
Arrhythmias, Cardiac
;
Cardiopulmonary Bypass
;
Diagnosis
;
Dyspnea
;
Echocardiography
;
Follow-Up Studies
;
Hamartoma*
;
Heart Neoplasms
;
Heart Ventricles
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Myocytes, Cardiac
;
Recurrence
;
Thorax
4.Plasma Glucose Regulation and Mortality in Korea: A Pooled Analysis of Three Community-Based Cohort Studies.
Nan Hee KIM ; Dong Jun KIM ; Seok Won PARK ; Jee Young OH ; Joong Yeol PARK ; Chol SHIN ; Hong Kyu LEE ; Yongsoo PARK
Diabetes & Metabolism Journal 2014;38(1):44-50
BACKGROUND: Although diabetes is a well-known risk factor for death, its impact on cancer death is not clearly understood. Furthermore, it remains controversial whether impaired fasting glucose (IFG) and/or impaired glucose tolerance (IGT) are associated with increased risk of mortality. We investigated the impact of diabetes or glucose tolerance categories on all cause and cause-specific mortality. METHODS: Mortality analysis was conducted in three population-based cohort studies of 3,801 participants, divided according to fasting plasma glucose (FPG) (normal; stage 1 IFG [5.6< or =FPG<6.1 mmol/L]; stage 2 IFG [6.1< or =FPG<7.0 mmol/L]; diabetes mellitus [DM]-FPG); or 2-hour glucose after 75 g glucose loading (2hPG) (normal; IGT; DM-2hPG), or a combination of FPG and 2hPG criteria. RESULTS: During a median follow-up of 11.0 years, 474 subjects died from all causes. Hazard ratios (HRs) for all cause death were higher in those with diabetes as defined by either FPG or 2hPG criteria than their normal counterparts (HR, 2.2, 95% confidence interval [CI], 1.6 to 2.9 for DM-FPG; HR, 2.0, 95% CI, 1.5 to 2.7 for DM-2hPG). Similarly, diabetes defined by either FPG or 2hPG was associated with cancer death (HR, 2.9, 95% CI, 1.7 to 5.0; and HR, 2.1, 95% CI, 1.2 to 3.9, respectively). Although neither IFG nor IGT conferred higher risk for death, when combining stage 2 IFG and/or IGT, the risk of all cause death was higher than in subjects with normal glucose regulation (HR, 1.3; 95% CI, 1.0 to 1.6). CONCLUSION: Diabetes is associated with higher risk of death from all causes and cancer. In subjects without diabetes, stage 2 IFG and/or IGT confers increased risk for mortality.
Blood Glucose*
;
Cohort Studies*
;
Diabetes Mellitus
;
Fasting
;
Follow-Up Studies
;
Glucose
;
Glucose Intolerance
;
Korea*
;
Mortality*
;
Plasma*
;
Risk Factors
5.Efficacy of Electroencephalographic Monitoring for the Evaluation of Intracranial Injury during Extracorporeal Membrane Oxygenation Support in Neonates and Infants.
In Seok JEONG ; Young Jong WOO ; Do Wan KIM ; Nan Yeol KIM ; Hwa Jin CHO ; Jae Sook MA
The Korean Journal of Critical Care Medicine 2014;29(2):70-76
BACKGROUND: Neurological complications are a serious concern during extracorporeal membrane oxygenation (ECMO) support in neonates and infants. However, evaluating brain injury during ECMO has limitations. Herein, we report our experience with bedside electroencephalographic monitoring during ECMO support and compared this to post-ECMO brain imaging studies and immediate neurologic outcomes. METHODS: We retrospectively reviewed the data for 18 children who underwent ECMO. From these subjects, we reviewed the medical records of 10 subjects who underwent bedside EEG monitoring during ECMO support. We collected data on patient demographics, clinical details of the ECMO course, electroencephalographic monitoring, brain imaging results, and neurologic outcomes. RESULTS: The median age was 4 months (range: 7 days-22 months), the median weight was 5 (3.6-12) kg, and the median length of ECMO therapy was 86 (27-206) hours. Eight patients (80%) were weaned successfully, and seven (70%) survived to discharge. Those with normal to mildly abnormal electroencephalographic findings had non-specific to mildly abnormal brain computed tomography findings and no neurologic impairment. Those patients with a moderately to severely abnormal electroencephalograph had markedly abnormal brain computed tomography findings and remained neurologically impaired. CONCLUSIONS: Normal electroencephalographic findings are closely related to normal or mild neurologic impairment. Our results indicate that electroencephalographic monitoring during ECMO support can be a feasible tool for evaluating brain injury although further prospective studies are needed.
Brain
;
Brain Injuries
;
Child
;
Demography
;
Electroencephalography
;
Extracorporeal Membrane Oxygenation*
;
Humans
;
Infant*
;
Infant, Newborn*
;
Medical Records
;
Neuroimaging
;
Retrospective Studies
6.Aortic Periannular Abscess Invading into the Central Fibrous Body, Mitral Valve, and Tricuspid Valve.
Hyun Kong OH ; Nan Yeol KIM ; Min Woong KANG ; Shin Kwang KANG ; Jae Hyeon YU ; Seung Pyung LIM ; Jae Sung CHOI ; Myung Hoon NA
The Korean Journal of Thoracic and Cardiovascular Surgery 2014;47(3):283-286
A 61-year-old man was diagnosed with aortic stenoinsufficiency with periannular abscess, which involved the aortic root of noncoronary sinus (NCS) that invaded down to the central fibrous body, whole membranous septum, mitral valve (MV), and tricuspid valve (TV). The open complete debridement was executed from the aortic annulus at NCS down to the central fibrous body and annulus of the MV and the TV, followed by the left ventricular outflow tract reconstruction with implantation of a mechanical aortic valve by using a leaflet of the half-folded elliptical bovine pericardial patch. Another leaflet of this patch was used for the repair of the right atrial wall with a defect and the TV.
Abscess*
;
Aortic Valve
;
Debridement
;
Endocarditis
;
Humans
;
Middle Aged
;
Mitral Valve*
;
Tricuspid Valve*
7.Pseudo-outbreak of Stenotrophomonas maltophilia Due to Contamination of Bronchoscope.
Gyun Yeol AHN ; Feng Nan YU ; Sook Jin JANG ; Dong Min KIM ; Geon PARK ; Dae Soo MOON ; Young Jin PARK
The Korean Journal of Laboratory Medicine 2007;27(3):205-209
BACKGROUND: We noticed an abrupt increase in the isolation of Stenotrophomonas maltophilia from bronchoalveolar lavage (BAL) specimens collected at Chosun University Hospital. We performed surveillance cultures in order to identify the source of what appeared to be a pseudo-outbreak. METHODS: To investigate a possible nosocomial outbreak of S. maltophilia, we performed culture of 11 environmental specimens obtained from a bronchoscopy room and two bronchoscopes. Pulsedfield gel electrophoresis (PFGE) was used to examine the genetic relatedness among the strains of S. maltophilia recovered from BAL specimens of 3 patients and 1 environmental sample, as well as 9 unrelated strains of S. maltophilia as a control. RESULTS: During a 7 day-period in March 2006, S. maltophilia was isolated from the BAL specimens of 7 of 13 (54%) patients, compared to only 5 of 188 (2.6%) patients during the 6-month period prior to that period. S. maltophilia was isolated from 1 of the 11 environmental samples, which was obtained from a fiberoptic bronchoscope suction channel. All 7 patient isolates and one environmental isolate exhibited similar antibiotic susceptibility patterns. PFGE analysis of the genomic DNA from epidemic strains demonstrated an identical banding pattern, whereas each of epidemiologically unrelated strains showed a unique electrophoretic pattern. CONCLUSIONS: Apparently one of the hospital bronchoscopes became contaminated with S. maltophilia during a bronchoscopic procedure. It is likely that subsequent specimen contamination occurred because the bronchoscope had been inadequately cleaned and disinfected. The pseudo-outbreak was controlled successfully by removing the source of infection.
Aged
;
Aged, 80 and over
;
Bronchoalveolar Lavage Fluid/microbiology
;
Bronchoscopes/*microbiology
;
*Disease Outbreaks
;
Electrophoresis, Gel, Pulsed-Field
;
*Equipment Contamination
;
Gram-Negative Bacterial Infections/diagnosis/*epidemiology/transmission
;
Humans
;
Male
;
Microbial Sensitivity Tests
;
Middle Aged
;
Stenotrophomonas maltophilia/*genetics/isolation & purification
8.Paip1 Indicated Poor Prognosis in Cervical Cancer and Promoted Cervical Carcinogenesis
Nan LI ; Junjie PIAO ; Xinyue WANG ; Ki Yeol KIM ; Jung Yoon BAE ; Xiangshan REN ; Zhenhua LIN
Cancer Research and Treatment 2019;51(4):1653-1665
PURPOSE: This study was aimed to investigate the role of poly(A)-binding protein-interacting protein 1 (Paip1) in cervical carcinogenesis. MATERIALS AND METHODS: The expression of Paip1 in normal cervical epithelial tissues and cervical cancer (CC) tissues were detected by immunohistochemistry. In vivo and in vitro assays were performed to validate effect of Paip1 on CC progression. RESULTS: Paip1 was found to be up-regulated in CC, which was linked with shorter survival. Knockdown of Paip1 inhibited cell growth, induced apoptosis and cell cycle arrest in CC cells, whereas its overexpression reversed these effects. The in vivo tumor model confirmed the pro-tumor role of Paip1 in CC growth. CONCLUSION: Altogether, the investigation demonstrated the clinical significance of Paip1 expression, which prompted that the up-regulated of Paip1 can presumably be a potential prognostic and progression marker for CC.
Apoptosis
;
Carcinogenesis
;
Cell Cycle
;
Cell Cycle Checkpoints
;
Immunohistochemistry
;
In Vitro Techniques
;
Prognosis
;
Uterine Cervical Neoplasms
9.Analysis by Delphi Survey of a Performance Evaluation Index for a Salt Reduction Project.
Hyun Hee KIM ; Eun Kyung SHIN ; Hye Jin LEE ; Nan Hee LEE ; Byung Yeol CHUN ; Moon Young AHN ; Yeon Kyung LEE
The Korean Journal of Nutrition 2009;42(5):486-495
The purpose of this study was to analyze the performance evaluation index for a salt reduction project. Questionnaires were developed in order to investigate salt reduction programs nationwide. The evaluation index and programs were analyzed through the case study of a salt reduction program in public health centers. The validity of the salt reduction program's evaluation index was determined based on study of the Delphi survey and on discussion with nutrition and health care professionals. The Delphi survey showed that daily salt intake was the most valid nutritional evaluation index. Stroke mortality and stomach cancer mortality were good health care evaluation indexes. The method for measuring salt intake that had the greatest validity was a 24-hour urine collection. However, 24-hour urine collection had the lowest score for ease of performance. The combined scores of validity and ease of performance showed that the survey method for dietary attitude and dietary behavior, dietary frequency analysis (DFQ 15), and a salty taste assessment, in that order, were proper methods. The high reliability of the salty taste assessment indicated that the percentage of the population that exhibits proper salt intake (2,000 mg sodium or less daily) and the percentage of the population that consumes low-salt diets as nutritional evaluation indexes also will be helpful to evaluate performance of salt reduction programs.
Delivery of Health Care
;
Diet, Sodium-Restricted
;
Evaluation Studies as Topic
;
Public Health
;
Surveys and Questionnaires
;
Sodium
;
Stomach Neoplasms
;
Stroke
;
Urine Specimen Collection
10.Evaluation of the Effectiveness of a Salt Reduction Program for Employees.
Hyun Hee KIM ; Eun Kyung SHIN ; Hye Jin LEE ; Nan Hee LEE ; Byung Yeol CHUN ; Moon Young AHN ; Yeon Kyung LEE
The Korean Journal of Nutrition 2009;42(4):350-357
The purpose of this paper was to evaluate the effectiveness of a salt reduction education program. Subjects participating in this study were 251 employees (166 in the "educated" group, 85 in the "non-educated" group) at 8 hospital and industry food service operations in Daegu. After the salt reduction education program was carried out, a salty taste assessment of both groups was conducted. The educated group had statistically significant differences and the noneducated group did not have statistically significant differences. In terms of nutrition knowledge, while the nutrition knowledge of the educated group was increased (p < 0.001), that of the non-educated group rose at a rate of 0.92. In terms of dietary attitude, the educated group exhibited increased preference toward less salty foods when compared to the noneducated group (p < 0.001). Regarding dietary behavior, the score of the educated group was improved (p < 0.001), thereby indicating a preference for less salty taste. This means that nutrition education had influence on dietary behavior. However, after education, sodium excretion for the educated group was not significantly decreased, compared to before education. The results show that there was a positive correlation between salty taste assessment and dietary attitude and behavior for a high-salt diet. There was a positive relationship between attitude for a high-salt diet and sodium intake; when people prefere a more salty taste, they eat more sodium. Therefore, in order to change dietary preference away from salty taste and to decrease sodium intake, a nationwide, systematic and continuous salt reduction education program is needed.
Diet
;
Food Services
;
Sodium