1.Measurement of Hemothorax Amount in Patients with Non-penetrating Chest Trauma by Supine Chest AP Radiograph.
Heon HAN ; Joo Hymn YANG ; Myung Hoon NA ; Hee Jong BAIK
Journal of the Korean Radiological Society 1994;31(4):645-650
PURPOSE: To evaluate the predictability of amount of hemothorax in the patients with blunt chest trauma, supine chest AP radiographs of 66 patients were reviewed and statistically analyzed. MATERIALS AND METHODS: In 66 patients, rib fractures were present in 53 patients, hemothorax in 46 patients, pneumothorax in 25 patients, and pulmonary contusions in 18 patients. Width and length of hemothorax were measured on supine chest AP radiograph, and were correlated with known drained amount of hemothorax. The presence and number of rib fracture, pulmonary contusion, subcutaneous emphysema, fracture of scapula and clavicle, and total opacification of hemithorax were also correlated with the drained amount of hemothorax. RESULTS: In multiple logistic regression analysis, width of hemothorax had the highest correlation with drained amount of hemothorax(regression coefficient 0.718, p value 0.00005). The presence and number of rib fracture, scapular fracture, subcutaneous emphysema were also correlated with drained amount of hemothorax. But length of hemothorax, pulmonary contusion, clavicular fracture, total opacification of hemithorax were not correlated with drained amount of hemothorax. CONCLUSION: Measured width of hemothorax in supine chest AP radiograph is the most reliable predictor for estimation of the amount of hemothorax, and may also be used as an indication for the application of closed thoracostomy in the treatment of hemothorax.
Clavicle
;
Contusions
;
Hemothorax*
;
Humans
;
Logistic Models
;
Pneumothorax
;
Rib Fractures
;
Scapula
;
Subcutaneous Emphysema
;
Thoracostomy
;
Thorax*
2.Infective Endocarditis in the Elderly Patients.
Sang Hoon NA ; Cheol Ho KIM ; Myung Don OH ; Young Seok CHO
Journal of the Korean Geriatrics Society 2003;7(1):37-46
BACKGROUND: Improved diagnostic and therapeutic strategies for infective for infective endocarditis such as proposed diagnostic criteria, Duke criteria and echocardiography resulted to increased life-spans of patients. METHODS: Retrospective analysis of medical records including medical history, laboratory data such as echocardiographic data and blood culture, and clinical outcomes was done for 106 patients with clinical diagnosis of infective endocarditis at Seoul National University Hospital from January 1990 to May 2000. Then we analysed differences of clinical features between elderly patients aged > or =60-years and the adult patients aged <60-years with infective endocarditis. RESULTS: The elderly patients >or=60-year are cases of 14%(15/106) and the mean ages are 67+/-8 years in elderly patient, 38+/-12 years in the adults patients respectively. Valvular heart disease was the most common predisposing heart disease with 9 cases(40%) followed by prosthetic valve endocarditis 2 cases (13%) in elderly patients, and there was no significant difference of frequencies with adult patients (valvular heart diseases, 33%; prosthetic valvular heart diseases, 25%). Although culture positive rates were not different with two groups: 47%(7/15) in elderly patients and 45%(41/91) in adult patients, the most common pathogen was staphylococcal species in elderly patients(27%, 4/15) but streptococcus species, in the adult patients(25%, 26/106, p<0.05). The frequencies of embolic complication were not different between two groups(20%, 3/15 vs 22%, 20/91: Elderly vs adult, respectively), but congestive heart failure was more developed in elderly patients, 33%(5/15) than in adult patients, 10%(9/91, p<0.05). Surgical intervention was more required in the elderly(47%, 7/15) than in adult patients(22%, 20/91, p<0.05). Out of 106 patients, 11 died and the overall mortality was 10.4%(11/106). In-hospital death was more common in the elderly than in adult patients: 4 cases(27%) vs 8%(7/91), p<0.05. Determinants of in-hospital death were patients with 60 years of age and older, Staphylococcus aureus endocarditis, and the presence of congestive heart failure(p<0.05) in univariate analysis. CONCLUSION: Infective endocarditis in elderly patients(age> or =60) had more poor outcomes than adult patients(age<60) such as the development of congestive heart failure, the need of surgical intervention, and the high mortality rate.
Adult
;
Aged*
;
Diagnosis
;
Echocardiography
;
Endocarditis*
;
Estrogens, Conjugated (USP)
;
Heart
;
Heart Diseases
;
Heart Failure
;
Heart Valve Diseases
;
Humans
;
Medical Records
;
Mortality
;
Retrospective Studies
;
Seoul
;
Staphylococcus aureus
;
Streptococcus
3.Mitral valve reconstruction.
Jay Won LEE ; Han Ku DO ; Taek Hee CHANG ; Sang Rok CHO ; Myung Hoon NA
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(3):191-195
No abstract available.
Mitral Valve*
4.The Differentially Expressed Genes by Radiotherapy in the Patients with Uterine Cervix Cancer.
Eun Young SEO ; Moon June CHO ; Jeung Hoon LEE ; Young Sook LEE ; Myung Hoon NA ; Woong Hee LEE ; Jun Sang KIM ; Jae Sung KIM
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2001;19(4):389-396
PURPOSE: To detect differentially expressed genes in the patients with uterine cervical cancer during the radiation therapy. MATERIALS AND METHODS: In patients with biopsy proven uterine cervical cancer, we took a tumor tissue just before radiation therapy and at 40 minutes after external irradiation of 1.8 Gy. Total RNAs isolated from non-irradiated and irradiated tumor tissue samples were analyzed using the differential-display reverse transcription-polymerase chain reaction (DDRT-PCR). Complementary DNA (cDNA) fragments corresponding to differentially expressed messenger RNAs(mRNAs) were eluted, and cloned. The differential expression of the corresponding mRNAs was confirmed by reverse northern blot. Differentially expressed cDNA bands were sequenced. Nucleotide sequence data were analyzed in the Gene Bank and EMBL databases via the BLAST network server to identify homologies to known genes or cDNA fragments. Expression pattern of down-regulated clone was examined using RT-PCR in 5 patients undergoing radiotherapy. RESULTS: We identified 18 differentially expressed bands by DDRT-PCR, which were eluted and cloned. There were 10 up-regulated clones and 1 down-regulated clone in reverse northern blot. One cDNA fragment had homology to chemokine receptor CXCR4, four were identified as Human ESTs in the EMBL database in EST clones. Down-regulated CxCa-11 was also down regulated in all patients. CONCLUSION: Using the DDRT-PCR, we have identified 10 up-regulated and 1 down-regulated clone(s) in the patients with uterine cervix cancer during the radiation therapy. The clinical relevance and the functions of these genes will be further investigated.
Base Sequence
;
Biopsy
;
Blotting, Northern
;
Cervix Uteri*
;
Clone Cells
;
DNA, Complementary
;
Expressed Sequence Tags
;
Female
;
Humans
;
Radiotherapy*
;
RNA
;
RNA, Messenger
;
Uterine Cervical Neoplasms
5.Clinical Analysis of Recurrent Gastrointestinal Stromal Tumor (GIST) Patients .
Gun Hyung NA ; Young Kyun KIM ; Han Hong LEE ; Sung Bae JI ; Byung Joo CHAE ; Hoon HUR ; Wook KIM ; Hae Myung JEON
Journal of the Korean Surgical Society 2007;73(4):309-314
PURPOSE: Gastrointestinal stromal tumors (GISTs) are of a mesenchymal origin, and they arise predominantly from the gastrointestinal tract. This study aims to aid the post operative management of GIST patients by analyzing the clinical and immunopathological features of recurrent GISTs. METHODS: We enrolled 98 GIST patients who had been operated on for their primary tumor from 1987 to 2001 at the Catholic Medical Center. Among them, 28 patients had clinical and radiological features that were proved to be recurrence, and the patients' survival rates were compared according to the treatment modalities. RESULTS: When the maximum length of tumor was shorter and the mitotic index lower, then these patients had higher disease free survival rates and lower recurrence rates. The Ki-67 negative group had lower recurrence rates than their Ki-67 positive counterparts. Recurrence was mostly observed as liver metastasis. The mean length of time to recur was 22.96 months. Fifteen patients received additional treatments such as surgery, chemotherapy and radiation therapy, but there was no significant difference in survival rates when they were compared to the 13 patients who did not receive further treatments. CONCLUSION: Of the patients diagnosed with GIST after surgery, those with worse prognostic factors, i.e. a bigger tumor size and higher mitotic index, require more meticulous surveillance for tumor recurrence, and especially for liver recurrence, which was the most common recurrence site, during the follow up exams. In addition, although there have not been any remarkably effective treatments for the recurrent GIST patients, further researches for new therapy such as STI-571 is mandated.
Disease-Free Survival
;
Drug Therapy
;
Follow-Up Studies
;
Gastrointestinal Stromal Tumors*
;
Gastrointestinal Tract
;
Humans
;
Imatinib Mesylate
;
Liver
;
Mitotic Index
;
Neoplasm Metastasis
;
Recurrence
;
Survival Rate
6.Surgical Treatment of Aortic Valve Injury after Blunt Chest Trauma.
Soo Young YOON ; Sang Soon PARK ; Myung Hoon NA ; Jae Hyeon YU ; Seung Pyung LIM ; Young LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(12):968-970
Twenty six year old man was struck by a bus, and sustained multiple rib fracture, sternal fracture, right scapular fracture, left subclavian arterial obstruction, and traumatic tracheoesophageal fistula. Diastolic murmur was heard, and echocardiography revealed a markedly regurgitant aortic valve and suspected vegetation. After establishing cardiopulmonary bypass and cardioplegic arrest, the aorta was opened. The left and right coronary cusp were ruptured 10mm, and 7mm, respectively. The leaflets were sutured with running 5-0 Prolene sutures. After the repair of the ruptured valve cusp, the valve was coapted well. He was discharged with excellent outcome on postoperative day 14.
Aorta
;
Aortic Valve*
;
Cardiopulmonary Bypass
;
Echocardiography
;
Heart Murmurs
;
Polypropylenes
;
Rib Fractures
;
Running
;
Sutures
;
Thorax*
;
Tracheoesophageal Fistula
7.Carney Complex: Eleven Open Heart Operations in a Single Family.
Sung Joon HAN ; Woosik HAN ; Min Woong KANG ; Jae Hyeon YU ; Shinkwang KANG ; Myung Hoon NA
The Korean Journal of Thoracic and Cardiovascular Surgery 2017;50(6):471-473
Herein, we report on a family with Carney complex. Four members of the family underwent a total of 11 open heart operations as well as 9 other operations to treat extrathoracic masses. All the family members met at least 2 major clinical criteria and 1 supplemental criterion. We analyzed their genomic loci, including the protein kinase A regulatory subunit 1 gene. The results revealed no specific mutations, except for a common single nucleotide polymorphism. This case series of Carney complex emphasizes the importance of close longitudinal follow-up because of the high rate of tumor recurrence irrespective of the site. Clinicians should not overlook the specific features of familial myxoma.
Carney Complex*
;
Cyclic AMP-Dependent Protein Kinases
;
Follow-Up Studies
;
Heart*
;
Humans
;
Myxoma
;
Polymorphism, Single Nucleotide
;
Recurrence
8.Cerebellar Botryomycosis: Case Report.
Tae Hoon KANG ; Hyun Koo LEE ; Jung Nam SUNG ; Young Joon KIM ; Maeng Gi CHO ; Na Hye MYUNG
Journal of Korean Neurosurgical Society 1996;25(12):2523-2528
A 60 year old male patient with a medical history of pulmonary tuberculosis presented with severe headaches and general weakness. Radiological studies revealed mass lesions both in the right using and the right cerebellar hemisphere. Clinically metastatic brain tumor and tuberculoma were highly suspected. The cerebella mass was totally excised and an unusual pathologic result was reported as botryomycosis. According to literatures reviewed, botryomycosis is a chronic bacterial infectious lesion resembling actinomycosis and mycotic abscess and it has been frequently reported in the skin, subcutaneous lesions and other visceral organs, but the cases of brain involvement were extremely rare. This article is a case report of a cerebellar botryomycosis. The pathologic characteristics and the differential diagnosis of botryomycosis are discussed.
Abscess
;
Actinomycosis
;
Brain
;
Brain Neoplasms
;
Diagnosis, Differential
;
Headache
;
Humans
;
Male
;
Middle Aged
;
Skin
;
Tuberculoma
;
Tuberculosis, Pulmonary
9.Risk Factors for the Development and Progression of Atlantoaxial Subluxation in Surgically Treated Rheumatoid Arthritis Patients, Considering the Time Interval between Rheumatoid Arthritis Diagnosis and Surgery.
Min Kyun NA ; Hyoung Joon CHUN ; Koang Hum BAK ; Hyeong Joong YI ; Je Il RYU ; Myung Hoon HAN
Journal of Korean Neurosurgical Society 2016;59(6):590-596
OBJECTIVE: Rheumatoid arthritis (RA) is a systemic disease that can affect the cervical spine, especially the atlantoaxial region. The present study evaluated the risk factors for atlantoaxial subluxation (AAS) development and progression in patients who have undergone surgical treatment. METHODS: We retrospectively analyzed the data of 62 patients with RA and surgically treated AAS between 2002 and 2015. Additionally, we identified 62 patients as controls using propensity score matching of sex and age among 12667 RA patients from a rheumatology registry between 2007 and 2015. We extracted patient data, including sex, age at diagnosis, age at surgery, disease duration, radiographic hand joint changes, and history of methotrexate use, and laboratory data, including presence of rheumatoid factor and the C-reactive protein (CRP) level. RESULTS: The mean patient age at diagnosis was 38.0 years. The mean time interval between RA diagnosis and AAS surgery was 13.6±7.0 years. The risk factors for surgically treated AAS development were the serum CRP level (p=0.005) and radiographic hand joint erosion (p=0.009). The risk factors for AAS progression were a short time interval between RA diagnosis and radiographic hand joint erosion (p<0.001) and young age at RA diagnosis (p=0.04). CONCLUSION: The CRP level at RA diagnosis and a short time interval between RA diagnosis and radiographic hand joint erosion might be risk factors for surgically treated AAS development in RA patients. Additionally, a short time interval between RA diagnosis and radiographic hand joint erosion and young age at RA diagnosis might be risk factors for AAS progression.
Arthritis, Rheumatoid*
;
C-Reactive Protein
;
Diagnosis*
;
Hand
;
Humans
;
Joints
;
Methotrexate
;
Propensity Score
;
Retrospective Studies
;
Rheumatoid Factor
;
Rheumatology
;
Risk Factors*
;
Spine
10.Association between the Human Surfactant Protein-A(SP-A) Gene Locus and Chronic Obstructive Pulmonary Disease in Korean Population.
Joo Ock NA ; Myung Ho OH ; Jae Sung CHOI ; Ki Hyun SEO ; Yong Hoon KIM
Tuberculosis and Respiratory Diseases 2006;60(6):638-644
BACKGROUNDS: This study investigated whether or not a polymorphism in the gene encoding the surfactant protein A(SP-A) has any bearing on the individual susceptibility to the development of chronic obstructive pulmonary disease(COPD) in a genetically homogenous Korean population. METHODS: The genotypes of 19 COPD patients and 20 healthy neonates as controls were tested using a polymerase chain reaction followed by restriction fragment length polymorphism analysis for the SP-A gene. RESULTS: The specific frequencies of the 6A2 and 6A18 alleles of SP-A1 and the 1A2 allele of SP-A2 were much higher in the COPD group than control group (p<0.05). However, the frequencies of the 6A3 and 6A4 alleles of SP-A1 and the 1A0 allele of SP-A2 in the COPD group were significantly lower than the control group. In the COPD group, the frequencies of the +50 locus genotypes GG of SP-A1 and the +9 locus genotypes CC of SP-A2 were 85.0% and 60.6%, respectively, and 19.7% and 24.8% in the control group, respectively. The frequencies of the polymorphic genotypes or alleles showed a statistically significant difference between the COPD group and the control group (P<0.05). CONCLUSION: A genetic polymorphism in SP-A is associated with the development of COPD in the Korean population.
Alleles
;
Genotype
;
Humans*
;
Infant, Newborn
;
Polymerase Chain Reaction
;
Polymorphism, Genetic
;
Polymorphism, Restriction Fragment Length
;
Pulmonary Disease, Chronic Obstructive*