1.Classification & Autocoding System of Neurosurgical Diseases: Using Personal Computer.
Hee Jin YANG ; Young Gyu KIM ; Dong Gyu KIM ; Hee Won JUNG ; Kil Soo CHOI ; Dae Hee HAN
Journal of Korean Neurosurgical Society 1991;20(8):719-723
The large amount of hospital dat makes management complicated and nowadays the data can barely be managed without computerization. The authors classified and encoded the neurosurgical diseases to develop the "Autocode System", the automatic code transformation system using Fox-ProR, which is a database management program. Any diagnostic entity which is input by the user is transformed into a specific code automaticall. Such a procedure excludes the input error originating from mistyping or naming an unclassified entity. This program is not perfect yet, but it is thought to be effective in the neurosurgical department for data storage and searching. Further modification, functional improvement, and ultimately, unifying the system among the hospitals can make cooperative study and systematic data analysis possible.
Classification*
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Humans
;
Information Storage and Retrieval
;
Microcomputers*
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Neurosurgery
;
Statistics as Topic
2.A Case of Systemic Amyloidosis.
Gyung Ho YOON ; Chang Soo CHOI ; Suk Gyu OH ; Jin Won JUNG ; Yang Gyu PARK ; Ok Gyu PARK ; Gyung Hee KIM ; Woo Geun SONG
Journal of the Korean Society of Echocardiography 2000;8(1):87-92
Systemic amyloidosis is an uncommon disease characterized by deposits of fibrillar aggregates of monoclonal immunoglobuloin light chains in vital organs. This amyloid deposit cause cardiac or renal dysfunction and ultimately, death. Cardiac amyloidosis may be asymptomatic or important causes of progressive heart failure and refractory arrhythmia. Cardiac involvement from AL amyloidosis is rapidly fatal. The amyloidoses are classified according to the biochemical nature of the fibril-forming protein. Cardiac amyloidosis is common in primary (AL) and heterofamilial amyloidosis and very rare in the secondary (AA) form. As we experienced a case of systemic amyloidosis affected heart, liver and kidney, which was confirmed by histology. We present a 57-year-old female case with literature review.
Amyloidosis*
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Arrhythmias, Cardiac
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Female
;
Heart
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Heart Failure
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Humans
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Kidney
;
Liver
;
Middle Aged
;
Plaque, Amyloid
3.Relation of Carotid Artery Intima-Media Thickness and Atherosclerotic Plaque with the Extent of Coronary Artery Stenosis.
Byung Hyun PARK ; Gyung Ho YOON ; Jae Hong PARK ; Chang Soo CHOI ; Hyang KOOK ; Nam Jin YOO ; Suk Gyu OH ; Jin Won JUNG ; Yang Gyu PARK ; Ok Gyu PARK
Journal of the Korean Society of Echocardiography 2000;8(1):45-53
BACKGROUND: Noninvasive measurements that relate to the extent and severity of coronary atherosclerosis have long been sought for clinical screening of patients with chest pain syndromes and for use in clinical trials. Intima-media thickeness (IMT) of the carotid artery has been suggested to be associated with coronary artery atherosclerosis. In this study, we tried to assess the relation of carotid artery atherosclerosis by B-mode ultrasonography with presence and severity of coronary artery disease. METHOD: We studied 57 patients (36 men, 21 women) with ischemic heart disease, mean age 65+/-8 yrs (48 to 83 yrs), who underwent both coronary angiography and carotid ultrasonography with 10 MHz transducer. The patients who had received revascularization procedure were excluded. We classified the patients into two groups, the control group without significant coronary stenosis (18 patients) and the coronary artery disease (CAD) group (39 patients) with significant luminal stenosis (> or =50%). The CAD group was divided into single vessel disease group (SVD, 19 patients) and multivessel disease group (MVD, 20 patients). IMT was measured in far wall of common carotid artery (CCA) at 10 mm proximal to carotid bulb and abnormal IMT was defined if the measurement was greater than mean IMT+2SD of control group. Serum total cholesterol (TC), low density lipoprotein (LDL), high density lipoprotein (HDL), triglyceride (TG), Lipoproteinp (a)(Lp(a)) were measured and history of hypertension, diabetes mellitus, and smoking were investigated. RESULTS: A significant difference in IMT of the CCA was found between control and CAD group (0.76+/-0.09 mm vs. 0.97+/-0.20 mm; p<0.0001). Also a significant difference in the number of atherosclerotic plaque was found between the two groups (control; 0.67+/-1.14 vs. CAD; 1.87+/-1.75; p<0.005). In the CAD group, both mean IMT and numbers of athero-sclerotic plaque tended to increase in MVD group compared with SVD group (1.03 mm vs. 0.91 mm; p=NS, 2.65 vs. 1.05; p<0.05). The sensitivity of IMT for prediction of significant CAD was 66.7%, the specificity 83.3%, the positive predictive value 89.7%, and the negative predictive value 53.6%. The sensitivity of plaque presence on the carotid artery for prediction of CAD was 71.8%, the specificity 61.3%, the positive predictive value 80.3% and the negative predictive value 50.5%. Among risk factor, diabetes mellitus and Lp (a) were correlated well with IMT of CCA, Hypertension was correlated with atherosclerotic plaque. History of smoking was correlated with coronary artery disease. CONCLUSION: Increases in IMT and plaque of the carotid artery, as measured noninvasively by ultrasonography, can be used as a predictor of significant coronary artery stenosis.
Atherosclerosis
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Carotid Arteries*
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Carotid Artery, Common
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Chest Pain
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Cholesterol
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Constriction, Pathologic
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Coronary Angiography
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Coronary Artery Disease
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Coronary Stenosis*
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Coronary Vessels*
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Diabetes Mellitus
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Humans
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Hypertension
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Lipoproteins
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Male
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Mass Screening
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Myocardial Ischemia
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Phenobarbital
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Plaque, Atherosclerotic*
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Risk Factors
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Sensitivity and Specificity
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Smoke
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Smoking
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Transducers
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Triglycerides
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Ultrasonography
4.A Case of Femoral Artery Pseudoaneurysm , which was Developed after Interventional Cardiology Procedure , Treated with Color Doppler Ultrasound-Guided Direct Compression.
Byung Hyun PARK ; Chang Soo CHOI ; Geun Young JANG ; Nam Jin YOO ; Suk Gyu OH ; Jin Won JUNG ; Yang Gyu PARK ; Ok Gyu PARK
Journal of the Korean Society of Echocardiography 2000;8(1):103-106
Vascular complications such as hematoma, pseudoaneurysm and arteriovenous fistula that occur after intracoronary or intracardiac procedures are responsible for considerable morbidity and some mortality. Iatrogenic aneurysms are usually postcatheterization pseudoaneurysms of the femoral artery. Nowadays, it is not uncommon as a consequence of more complex interventional procedures, larger catheters and prolonged anticoagulation treatment. Surgical repair has been mainstay of treatment for pseudoaneurysm. However, recently has it been shown that color Doppler ultrasound-guided direct, noninvasive compression of the pseudoaneurysm stops the blood flow in the communication and lead to pseudoaneurysm clotting and obliteration. We report a case of pseudoaneurysm in femoral artery, which was developed at the right inguinal puncture site in 74 year old male patient with myocardial infarction who had received continuous intravenous infusion of heparin and had undergone primary percutaneous coronary angioplasty and temporary pacemaker insertion treated successfully with color Doppler ultrasound guided direct compression.
Aged
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Aneurysm
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Aneurysm, False*
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Angioplasty
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Arteriovenous Fistula
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Cardiology*
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Catheters
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Femoral Artery*
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Hematoma
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Heparin
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Humans
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Infusions, Intravenous
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Male
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Mortality
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Myocardial Infarction
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Punctures
;
Ultrasonography
5.Suture Bridge Fixation Technique for Posterior Cruciate Ligament Avulsion Fracture.
Kwang Won LEE ; Dae Suk YANG ; Gyu Sang LEE ; Won Sik CHOY
Clinics in Orthopedic Surgery 2015;7(4):505-508
We presented a surgical technique including a suture bridge technique with relatively small incision for the reduction and fixation of posterior ligament avulsion fractures. A suture anchor was used to hold the avulsed fragment and a knotless anchor was used to continuously compress the bony fragment into the fracture site, thereby maintaining reduction during healing.
Adolescent
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Adult
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Humans
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Knee Injuries/*surgery
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Male
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Posterior Cruciate Ligament/*injuries/*surgery
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*Suture Anchors
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*Suture Techniques
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Young Adult
6.Three-Dimensional Scapular Kinematics in Patients with Reverse Total Shoulder Arthroplasty during Arm Motion.
Kwang Won LEE ; Yong In KIM ; Ha Yong KIM ; Dae Suk YANG ; Gyu Sang LEE ; Won Sik CHOY
Clinics in Orthopedic Surgery 2016;8(3):316-324
BACKGROUND: There have been few reports on altered kinematics of the shoulder after reverse total shoulder arthroplasty (RTSA). We investigated differences in 3-dimensional (3D) scapular motions assessed using an optical tracking system between RTSA treated shoulders and asymptomatic contralateral shoulders during arm motion. METHODS: Thirteen patients who underwent RTSA were assessed for active arm elevation in 2 distinct elevation planes (sagittal plane flexion and scapular plane abduction). Their mean age was 72 years (range, 69 to 79 years) and the mean follow-up was 24.4 months (range, 13 to 48 months). The dominant side was the right side in all the 13 patients, and it was also the side treated with RTSA. Scapular kinematics was recorded with an optical tracking system. The scapular kinematics and the scapulohumeral rhythm (SHR) of the RTSA shoulders and asymptomatic contralateral shoulders were recorded and analyzed during arm elevation. RESULTS: There were no significant differences in internal/external rotation and anterior/posterior tilting of the scapula between shoulders during arm motion (p > 0.05). However, upward rotation of the scapula differed significantly during arm motion (p = 0.035 for sagittal plane flexion; p = 0.046 for scapular plane abduction). There were significant differences in the SHR between the two shoulders (p = 0.016 for sagittal plane flexion; p = 0.021 for scapular plane abduction). CONCLUSIONS: The shoulder kinematics after RTSA showed significant differences from the contralateral asymptomatic shoulders. Increased upward rotation and decreased SHR after RTSA indicate that RTSA shoulders use more scapulothoracic motion and less glenohumeral motion to elevate the arm.
Aged
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Arm/physiology
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Arthroplasty, Replacement, Shoulder/*methods
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Biomechanical Phenomena
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Cohort Studies
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Female
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Fiducial Markers
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Humans
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Imaging, Three-Dimensional/*methods
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Male
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Range of Motion, Articular/*physiology
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Scapula/*physiology
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Shoulder Joint/*physiology
7.A Case of metastatic choriocarcinoma diagnosed at 34th week of pregnancy.
Chi Hun SONG ; Su Mi JUNG ; Won Gyu YANG ; Jong Ho PARK ; Won Il PARK ; Jung Whan SHIN ; Jong Eun JOO
Korean Journal of Obstetrics and Gynecology 1999;42(1):198-202
Choriocarcinoma associated with a normal pregnancy is rare. Especially, choriocarcinoma coexistent with a viable pregnancy is even rarer and commonly presents with widespread metastatic disease. We experienced a patient at 34th week of pregnancy with dyspnea and sputum production due to pulmonary metastasis of choriocarcinoma. The serum B-hCG level was extremely elevated and the placenta had multifocal choriocarcinoma. After vaginal delivery, the patient was successfully treated with combination chemotherapy (EMA-CO). The patient is receiving follow up with monthly measurement of hCG values. We report one case of metastatic choriocarcinoma with viable pregnancy with review of literature.
Choriocarcinoma*
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Drug Therapy, Combination
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Dyspnea
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Female
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Follow-Up Studies
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Humans
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Neoplasm Metastasis
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Placenta
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Pregnancy
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Pregnancy*
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Sputum
8.Urinary tissue inhibitor of metalloproteinase-2 and insulin-like growth factor-binding protein 7 as biomarkers of patients with established acute kidney injury
Won Yong CHO ; Sung Yoon LIM ; Ji Hyun YANG ; Se Won OH ; Myung-Gyu KIM ; Sang-Kyung JO
The Korean Journal of Internal Medicine 2020;35(3):662-671
Background/Aims:
Urinary tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor-binding protein 7 (IGFBP7) have been recently discovered and validated as sensitive biomarkers that can predict stage 2 or 3 acute kidney injury (AKI) development in high-risk patients. We aimed to assess whether these biomarkers could predict adverse outcomes and renal recovery in established AKI patients.
Methods:
This was a single-center study prospectively enrolling 124 patients diagnosed with AKI. TIMP-2, IGFBP7, neutrophil gelatinase-associated lipocalin (NGAL), and kidney injury molecule 1 (KIM-1) levels were measured at the time of diagnosis and the predictive performance of short-term outcomes and renal recovery was assessed.
Results:
Patients were divided into 4 quartiles according to the initial urinary TIMP-2/IGFBP7 levels. Stage 3 AKI (odds ratio [OR], 17.86), classified by the Kidney Disease Improving Global Outcomes (KDIGO), as well as the third and fourth quartiles of TIMP-2/IGFBP7 (OR, 5.75 and 44.98, respectively), were found to be independent predictors of renal replacement therapy at the time of AKI diagnosis. In addition, KDIGO stage 3 AKI (OR, 2.468) or the third of fourth quartiles of urinary TIMP-2/IGFBP7 (OR, 1.896 and 3.622, respectively) were also found to be useful in predicting nonrecovery of renal function. In a separate analysis of patients with renal recovery at discharge, initial urinary TIMP-2/IGFBP7 or urinary IGFBP7 at discharge could also predict new-onset or progressive chronic kidney disease (CKD).
Conclusions
In AKI patients, urine TIMP-2/IGFBP7 could serve as a biomarker for predicting adverse outcomes, renal recovery, or the development and progression of CKD.
9.Clinical Outcome of Arthroscopic Partial Repair of Large to Massive Posterosuperior Rotator Cuff Tears: Medialization of the Attachment Site of the Rotator Cuff Tendon
Kwang Won LEE ; Gyu Sang LEE ; Dae Suk YANG ; Seong Ho PARK ; Young Sub CHUN ; Won Sik CHOY
Clinics in Orthopedic Surgery 2020;12(3):353-363
Background:
The goal of this study was to evaluate the clinical and radiological outcomes of arthroscopic partial repair with medialization of the attachment site of the rotator cuff tendon and to identify prognostic factors affecting rotator cuff healing in patients with irreparable large to massive posterosuperior rotator cuff tears.
Methods:
Between July 2012 and March 2016, 42 patients with irreparable large to massive posterosuperior rotator cuff tears underwent an arthroscopic partial repair with medialization of the attachment site of the rotator cuff tendon. All patients had a minimum of 2-year follow-up (mean, 35.4 ± 7.3 months). Clinical evaluation was performed using the visual analog scale, the University of California, Los Angeles shoulder rating scale, Constant score, and active range of motion. Radiological evaluation was performed using magnetic resonance imaging and simple radiography.
Results:
Clinical outcomes at the final follow-up improved significantly compared with the preoperative values (all p < 0.001). The failure rate was 23.8% (10/42); however, clinical outcomes significantly improved regardless of cuff healing (all p < 0.001). The mean acromiohumeral distance was 6.5 ± 1.7 mm (range, 3.2–9.7 mm) before surgery and 6.3 ± 1.6 mm (range, 2.8–9.5 mm) at the final follow-up. Preoperative acromiohumeral distance was associated with failure of cuff healing in the univariate analysis (p = 0.043) and multivariate analysis (p = 0.048). A receiver operating characteristic curve was used to determine the predictive cutoff value for the smallest preoperative acromiohumeral distance for successful healing, which was calculated as 5.3 mm.
Conclusions
Despite healing failure, arthroscopic partial repair with medialization can be a possible treatment option for irreparable large to massive posterosuperior rotator cuff tears because of the improvement in clinical outcome. The shorter preoperative acromiohumeral distance was the single most important factor negatively affecting cuff healing, and the likelihood of success of healing might be improved if a repair is performed when the preoperative acromiohumeral distance is < 5.3 mm.
10.The Role of Hepatobiliary Scintigraphy and Oral Cholecystography in Predicting the Performance of Laparoscopic Cholecystectomy.
Dae Hyuk MOON ; Seoung Oh YANG ; Hee Kyung LEE ; Kyoung Sook WON ; Jin Sook RYU ; Dong Bok HAN ; Cheol Min PARK ; Moon Gyu LEE ; Kwang Min PARK ; Sung Gyu LEE
Korean Journal of Nuclear Medicine 1997;31(1):102-107
131I-6beta-iodomethyl-19-norcholesterol(NP-59) has an advantage to assess adrenal dysfunction caused by adrenal cortical disorders. The aim of this study is to evaluate the clinical usefulness of NP-59 scintigraphy in each adrenral disease. Ten patients who did eleven NP-59 adrenal scintigraphies at Dong-A University Hospital from March 1990 to December 1996 were selected as the subject. Among the subject there were 5 cases of Cushing's syndrome, 2 cases of incidentaloma, 1 case of metastatic adrenal tumor, liver cirrhosis with hirsutism and hypertension respectively. Among 5 case of Cushing's syndrome, there were 2 cases of Cushing's disease, 2 cases of adrenal adenoma and 1 case of adrenal carcinoma. There are no disagreement between clinical diagnosis and scan finding in Cushing's syndrome. In 2 incidentaloma cases, even though one is interpretated as a functioning tumor, both of 2 cases could avoid unnecessary biopsy according to scintigraphy result. One case of hirsutism, clinically adrenal originated, revealed the normal scintigraphic hirsutism was extra-adrenal origin. One case of hypertension took the study to exclude the possibility of primary aldosteronism. Normal suppression scan finding revealed that primary aldosteronism did not exist in this case. In conclusion, NP-59 scintigraphy was very useful in diagnosis and differential diagnosis of Cushing's syndrome and it could avoid unnecessary biopsy in the incidental adrenal tumor.
Adenoma
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Adosterol
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Biopsy
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Cholecystectomy, Laparoscopic*
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Cholecystography*
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Cushing Syndrome
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Diagnosis
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Diagnosis, Differential
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Hirsutism
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Humans
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Hyperaldosteronism
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Hypertension
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Liver Cirrhosis
;
Radionuclide Imaging*