1.The Clinical Observation of Congenital Mitral Insufficiency.
Jae Kon KO ; Jung Yun CHOI ; Young Soo YUN ; Chang Yee HONG
Korean Circulation Journal 1986;16(2):255-261
We reviewed the clinical and hemodynamic studies in 10 patients with the isolated congenital mitral insufficiency. The patients ranged in age from 6 months to 16 years at the time of diagnosis and the incidence was 0.26% among the total congenital heart disease proven by cardiac catheterization and angiography. In two cases anterior mitral cleft was demonstrated by 2-D echocardiography and/or operation. In two cases left coronary artery was originated from pulmonary artery. Eight cases out of ten presented symptoms indicating varying degrees of left ventricular failure. Apical systolic murmur was heard in all except one, who had only triple rhythm. The electrocardiograms revealed left ventricular hypertrophy in 8 cases and biventricular hypertrophy in 2 cases. Roentgenographically left atrial enlargement was observed in 4 cases. Left arterial and ventricular dimension were increased in 7 cases by echocardiography. In 5 cases of them, pulmonary artery wedge pressure or left atrial pressure was increased. One patient died in congestive heart failure at the age of 10 months and one patient died postoperatively. Other 4 patients have been managed with medication without difficulty.
Angiography
;
Atrial Pressure
;
Cardiac Catheterization
;
Cardiac Catheters
;
Coronary Vessels
;
Diagnosis
;
Echocardiography
;
Electrocardiography
;
Heart Defects, Congenital
;
Heart Failure
;
Hemodynamics
;
Humans
;
Hypertrophy
;
Hypertrophy, Left Ventricular
;
Incidence
;
Mitral Valve Insufficiency*
;
Pulmonary Artery
;
Pulmonary Wedge Pressure
;
Systolic Murmurs
2.Motor nerve conduction studies and spinal evoked potentials studiesof intercostal nerves in man.
Sae Yoon KANG ; Young Jin KO ; Yun Tae KIM ; Tae Hee KANG
Journal of the Korean Academy of Rehabilitation Medicine 1992;16(4):338-345
No abstract available.
Evoked Potentials*
;
Intercostal Nerves*
;
Neural Conduction*
3.Effect of Unilateral Diaphragmatic Palsy on Lung Perfusion in Rabbit Model.
Yong Soo YUN ; Ho Sung KIM ; Jin Young SONG ; June Tae KO ; Chung Il NOH ; Jung Yun CHOI
Korean Circulation Journal 1999;29(4):408-414
BACKGROUND: In congenital heart disease, the lung perfusion through stenosed pulmonary artery is usually decreased. And this decrement of lung perfusion also occurs with diaphragmatic palsy after the operation of congenital heart disease. It is difficult to delineate the amount of lung perfusion in case of combination of pulmonary artery stenosis and diaphragmatic palsy. We examined the change of lung perfusion after the induction of diaphragmatic palsy in rabbits. METHODS: We dissected left phrenic nerves in 20 rabbits to induce left diaphragmatic palsy. The lung perfusion scan was performed with 99mTc-MAA and the movement of diaphragm was examined with fluoroscopy. They were performed as baseline data and on 3rd and 10th day postoperatively. The amount of left lung pefusion before and after diaphragmatic palsy was compared and analysed in 12 rabbits which definitely had diaphragmatic palsy. RESULTS: Weight of the rabbits was 1.65+/-0.26 kg. Left lung perfusion percent was 45.93+/-6.42% before operation and these were 32.48+/-6.09% and 37.62+/-3.39% on the 3rd and 10th postoperative day, respectively. Left lung perfusion was significantly decreased just after diaphragmatic palsy but it was not changed thereafter. The decrement of lung perfusion was not affected by the body weight. The decreased amount of left lung perfusion was reciprocally correlated with the body weight of the rabbits on the postoperative 3rd day but not 10th day. CONCLUSION: Left lung perfusion percent of the rabbits was decreased 7% with the induction of diaphragmatic palsy and the decreased amount was reciprocally correlated with the body weight just after the diaphragmatic palsy was induced.
Body Weight
;
Constriction, Pathologic
;
Diaphragm
;
Fluoroscopy
;
Heart Defects, Congenital
;
Lung*
;
Paralysis*
;
Perfusion*
;
Phrenic Nerve
;
Pulmonary Artery
;
Rabbits
4.The Relationship of MMSE to Functional Improvement in Brain Injured Patients.
Hye Won KIM ; Young Jin KO ; Sae Yun KANG ; Young A CHANG
Journal of the Korean Academy of Rehabilitation Medicine 1998;22(6):1179-1184
OBJECTIVE: To determine the relationship of the Mini-Mental State Examination (MMSE) scores to the functional improvement of the brain-injured patients with a traumatic brain injury or cerebrovascular accident. METHOD: Thirty patients who were admitted to a rehabilitation hospital for their initial brain injury were retrospectively studied. Subjects were administerd a MMSE as cognitive assessment and a Functional Independence Measure (FIM) and Modified Barthel Index (MBI) as functional assessment upon referral for the rehabilitation and at discharge. RESULTS: MMSE scores, FIM scores and MBI scores at discharge increased significantly compared to the scores at the start of rehabilitation. The changes of MMSE scores significantly correlated with the changes of FIM scores and MBI scores in 30 brain injured patients (p<0.001). Among the subitems of FIM, the social cognition, communication, self care, and sphincter control were strongly correlated with the MMSE scores. CONCLUSION: We conclude that the MMSE can be a relevant predicting factor for the changes of functional status of brain-injured patients from a inpatient stroke rehabilitation and post brain- injury rehabilitation.
Brain Injuries
;
Brain*
;
Cognition
;
Humans
;
Inpatients
;
Referral and Consultation
;
Rehabilitation
;
Retrospective Studies
;
Self Care
;
Stroke
5.Effect of Inhaled Nitric Oxide on Hemodynamics, Gas Exchange and Pulmonary Inflammation in Newborn Piglets with Escherichia coli Induced Septic Lungs.
Yun Sil CHANG ; Sun Young KO ; Won Soon PARK
Journal of the Korean Pediatric Society 2003;46(8):777-783
PURPOSE: The aim of this study was to evaluate the effect of inhaled nitric oxide(iNO) on gas exchange, hemodynamics and pulmonary inflammation in newborn piglets with E. coli induced septic lung. METHODS: Twenty three instrumented and ventilated piglets were randomized into three groups: CON(n=6), PCON(n=9), and PNO(n=8). In the piglets of the PCON and PNO groups, E. coli septic lung was induced by endotracheal instillation of E. coli. Ten ppm iNO was given continuously in the PNO group after endotracheal instillation of E. coli. All animals were mechanically ventilated for six hour with a peak inspiratory pressure of 30 cmH2O, frequency of 25 breaths/min, FiO2 1.0 and a positive end-expiratory pressure of 4 cmH2O. All measurements were made at one hour intervals during the experiment. At the end of the experiment, lung tissue was harvested for the analysis of myeloperoxidase activity, indicative of lung inflammation. RESULTS: All piglets with pulmonary instillation of E. coli developed E. coli sepsis. Piglets in the PCON group developed progresseve pulmonry hypertension, hypoxemia and hypercarbia compared to the CON group due to increased pulmonary vascular resistance, intrapulmonary shunt fraction and physiologic dead space fraction. iNO did not reverse pulmonary hypertension in the PNO group. However iNO significantly improved oxygenation, which was attributed to marked improvement of venous admixture and partial attenuation of increase in dead space fraction. Increased myeloperoxidase activity in PCON compared to CON was significantly attenuated in PNO. CONCLUSION: iNO improves oxygenation and lung inflammation in newborn piglets with E. coli induced septic lung.
Animals
;
Anoxia
;
Escherichia coli*
;
Escherichia*
;
Hemodynamics*
;
Humans
;
Hypertension
;
Hypertension, Pulmonary
;
Infant, Newborn*
;
Lung*
;
Nitric Oxide*
;
Oxygen
;
Peroxidase
;
Pneumonia*
;
Positive-Pressure Respiration
;
Sepsis
;
Vascular Resistance
6.A Positive Hybrid (HMW-CK and E-Cadherin) Carcinoma in situ Arising in a Phyllodes Tumor of the Breast: A Case Report.
Yun Kyung KANG ; Young Hyeh KO
Korean Journal of Pathology 2008;42(2):113-117
Malignant transformation in phyllodes tumor (PT) is uncommon and almost always confined to the stromal component. Epithelial changes like hyperplasia, metaplasia, and varying degrees of atypia are not uncommon in PT, whereas carcinomatous change is extremely rare. We report a 37-year-old woman with carcinoma in situ (CIS) arising in a benign PT. Grossly, it was a well circumscribed, 4.5 cm-sized mass. The CIS component was confined to the PT and showed overlapping ductal and lobular features with coexpression of E-cadherin and high molecular weight cytokeratin (HMW-CK). The present case emphasizes that careful investigation of multiple microscopic sections is mandatory to find a small carcinomatous lesion within PT. Expression of E-cadherin and HWM-CK in this hybrid CIS suggests that intraepithelial neoplasia of the breast arising in PT may be derived from a common progenitor of the terminal duct-lobular unit.
Female
;
Humans
7.The Outcome of Percutaneous Intervention of the Superficial Femoral Artery and the Predictors of its Patency.
Sang Hak LEE ; Donghoon CHOI ; Young Guk KO ; Kihwan KWON ; Do Yun LEE ; Byung Chul CHANG ; Won Heum SHIM
Korean Circulation Journal 2003;33(7):607-613
BACKGROUND AND OBJECTIVES: Percutaneous intervention has become an established technique in the treatment of peripheral arterial obstructive disease. This study was performed to evaluate the procedural success and long-term outcome of percutaneous intervention of the superficial femoral artery (SFA), and to determine the factors that influence the long-term outcome. SUBJECTS AND MEHTODS: Eighty-eight consecutive lesions, in 76 subjects (mean age 65) with chronic lower limb ischemia and SFA obstruction, diagnosed with angiography were included in this study. The angiographic success was defined as residual stenosis <30% and the clinical success as an improvement by at least one clinical category. The clinical patency was defined as an absence of symptom recurrence and target lesion revascularization during the follow up period. The predictors of the outcome were also determined. RESULTS: Balloon angioplasty only was performed in 39 lesions and thrombolysis only in 2, whereas stenting was performed in 47 lesions. Seventy four of the 88 attempts (84%) at recanalization were angiographically successful, while 73 (83%) experienced clinical improvement. The twelve month patency was 67%. Critical ischemia (versus intermittent claudication)(relative risk 4.2, p=0.020) and renal failure (relative risk 4.1, p=0.016) were independent negative predictors of the patency. CONCLUSION: Percutaneous intervention of the SFA yielded a high procedural success rate, with an acceptable long-term outcome. Symptoms of critical ischemia and renal failure were predictive of a low long-term patency.
Angiography
;
Angioplasty
;
Angioplasty, Balloon
;
Arterial Occlusive Diseases
;
Constriction, Pathologic
;
Femoral Artery*
;
Follow-Up Studies
;
Ischemia
;
Lower Extremity
;
Outcome Assessment (Health Care)
;
Recurrence
;
Renal Insufficiency
;
Stents
8.Surgical Management of Thoracolumbar Spine Fracture with Pedicle Screws and Inferior Laminar Hooks.
Jin Man WANG ; Kwon Jae ROH ; Yeo Hun YUN ; Young Do KO ; Jong Keon OH ; Hoon JEONG ; Dong Jun KIM
Journal of Korean Society of Spine Surgery 1998;5(1):62-69
STUDY DESIGN: Clinical and radiographic results of spine fracutre treated with pedicle screws and hooks were reviewed. OBJECTIVES: Evaluate the efficacy of tile pedicle screw and hook for thoracolumar bursting fracture. SUMMARY OF LITERATURE REVIEW: Despite of the mechanical advantage of the pedicle screw, the metal failure in short segment fusion has been reported. A biomechanical study showed additional laminar hook increased rotational strength. MATERIALS AND METHODS: Between 1994 and 1996, seventeen patients who had a Denis type B bursting fracture of the thoracolumbar spine were treated by posterior instrumentation with pedicle screws and laminar hooks and auterior interbody fusion after partial corpectomy. They have been followed for an average of 13.4 months. RESULTS: At last follow-up, radiographs showed successful fusion of the injured spinal segment in all patient. The subsidence of grafts which were used In anterior interbody fusion was an average of 0.76mm. There was a loss of 2.6 degrees on average in the correction of the kyphosis. No patients had screw breakage or loosening. CONCLUSIONS: We concluded that posterior fixation with screws and hooks, anterior decompression by partial corpectomy, and strut-grafting in patient who had a Denis type B bursting frafture of the thoracolumbar spine yielded good radiographic and functional results.
Decompression
;
Follow-Up Studies
;
Humans
;
Kyphosis
;
Spine*
;
Transplants
9.Surgical Treatment of Complete Vascular Ring Associated with Kommerell's Diverticulum.
Tae Jin YUN ; Jung Hun OH ; Kyung Suk MIN ; Dong Man SEO ; Young Hwue KIM ; Jae Kon KO ; In Sook PARK
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(9):761-765
Forty year old woman with dysphagia underwent surgical correction of complete vascular ring formed by right aortic arch, Kommerell's diverticulum and ligamentum arteriosum. Operation consisted of ligamentum division, reduction diverticuloplasty and posterior diverticulopexy via left posterolateral thoracotomy. Dysphagia was relieved postoperatively, and concentic narrowing of esophagus in the level of aortic arch disappeared on postoperative esophagography.
Aorta, Thoracic
;
Deglutition Disorders
;
Diverticulum*
;
Esophagus
;
Female
;
Humans
;
Thoracotomy
10.Endovascular Repair of Aortoiliac Aneurysm Using Bifurcated Stent Grafts with Sandwich Technique for Preserving the Internal Iliac Artery.
Jung Ho KIM ; Young Guk KO ; Do Yun LEE ; Donghoon CHOI
Korean Circulation Journal 2013;43(9):628-631
In this case, we describe a case of a 76-year-old male with extensive aortoiliac aneurysms treated by endovascular aneurysm repair using the sandwich technique in order to preserve left internal iliac artery perfusion. The sandwich technique refers to the deployment of multiple paralleled stent grafts into main distal and side branches in overlapping with a single proximal stent graft. The procedure was successfully performed without complications. Post-procedural CT angiography demonstrated patent stent grafts without any endoleak. The strengths and limitations of the sandwich technique need to be investigated in large-scale, long-term clinical trials.
Aged
;
Aneurysm
;
Angiography
;
Aortic Aneurysm
;
Endoleak
;
Endovascular Procedures
;
Humans
;
Iliac Artery
;
Male
;
Perfusion
;
Stents
;
Transplants