1.A case of cavernous lymphangioma in mediastinum.
Jin Kee JUNG ; Sang Du LEE ; Kee Yong PARK ; Dock Yong CHUNG ; Mi Sun LEE ; Jong Gun KIM
Journal of the Korean Pediatric Society 1993;36(3):417-422
Cavernous lymphangioma in mediastinum is a rare congenital malformation of lymphatic system and is caused by lack of adequate drainage from the sequestrated lymphatic vessels to the venous system due to insufficiency or atresia of the efferent lymphatic channels The authors experienced 10 month-old male patient with cavernous lymphangioma in mediastinum documented by chest CT and open biopsy The review of the literature was made briefly.
Biopsy
;
Drainage
;
Humans
;
Infant
;
Lymphangioma*
;
Lymphatic System
;
Lymphatic Vessels
;
Male
;
Mediastinum*
;
Tomography, X-Ray Computed
2.Analysis of implant strain value exerted using different screw tightening protocols in screw-retained 3-unit prostheses
Sang-Beom KIM ; Du-Hyeong LEE ; Cheong-Hee LEE
The Journal of Korean Academy of Prosthodontics 2020;58(4):321-327
Purpose:
The purpose of this study was to measure and compare the strain value exerted on the cervical area using different screw tightening protocols in implant-supported, screw-retained 3-unit prostheses.
Materials and methods:
Strain gauges were attached to four implants: two external and two internal. Thereafter, two study model were designed each type using acrylic resin. CAD-CAM was used to design hex and nonhex abutments for each group (EH, ENH, IH, and INH group) and Screw-cement-retained prostheses were also designed using a nonprecious base metal. Abutment was fixed with 10 Ncm torque, and the prosthesis was cemented. Screws were fixed with 30 Ncm torque using different three protocols. After 5 min, the strain gauge level was measured, and group analysis was performed (α=.05).
Results:
External group showed significantly lower strain values than internal group and the EH group showed significantly lower strain values than the ENH group (P<.05). There was no difference in strain value based on the types of screw tightening protocols in same group (P>.05). The IH group exhibited significantly higher strain values than the INH group and the IH group showed a significant difference in strain values based on the types of screw tightening protocols used (P<.05).
Conclusion
There was no significant effect on the external type in the implant-supported, screw-retained prostheses. However, strain values were high in the internal type, and the types of screw tightening protocol significantly affected these implants.
3.coagulopathy in scrub typhus: changes of plasma t-PA concentration and its relationship with disseminated intravascular coagulation.
Du Hyok CHOI ; Seonyang PARK ; Kyung Chae KYE ; Byoung Kook KIM ; Kang Won CHOI ; Jung Sang LEE ; Munho LEE
Korean Journal of Hematology 1992;27(1):69-73
No abstract available.
Disseminated Intravascular Coagulation*
;
Plasma*
;
Scrub Typhus*
4.Assessment of Autonomic Nervous Dysfunction by Heart Rate Spectral Analysis (HRSA) in Patients with Angina Pectoris.
Choong Ki LEE ; Du Ha LEE ; Young Jo KIM ; Bong Sup SHIM ; Hyun Woo LEE ; Sang Hak LEE ; Joon Ha LEE
Korean Circulation Journal 1992;22(1):87-95
BACKGROUND: The autonomic nervous control of the cardiovascular system has been thought to have a diurnal variation in its activity. This variation could be an important underlying mechanism for the circardian distribution of cardiac events such as angina pectoris attack, transient myocardial ischemia, and some arrhythmia. The vagal cardiac function is commonly impaired in patients with coronary artery disease. Recently, an assessment of parasympathetic and sympathetic activities is now possible using neart rate spectral analysis. The spectral density of R-R interval variability contains two major components, high frequency (HF) power spectral density (<0.25Hz) and low frequency (LF) power spectral density (<0.15Hz), which have magnitudes that are quantitative markers of cardiac vagal activity and sympathetic activity with vagal modulation, respectively. METHODS: We analyzed the spectral components of R-R interval variability from 24 hour ambulatory holter monitoring in 20 controls and 20 patients with angina pectoris. The patients had no clinical evidence of hypertension, acute myocardial infarction, heart failure, arrhythmia or diabetes mellitus. Recording continued for 24 hours while the subject undertook his normal work and leisure activities. For power spectral analysis, 1024 hours beats was sampled at early morning, afternoon, evening and during sleeping. RESULTS: The spectral component of R-R interval variability was unaffected by the time of day during the waking period, althought a significant decrease in LFCCV and HFCCV was observed during sleeping in controls(p<0.001). In comparison of two groups, patients with angina pectoris showed markedly diminished HFCCV values during waking period except during sleeping period. The R-R interval and LF/HFCCV and LF/HFCCV ratio at transient ischemic attack in patients with angina pectoris. CONCLUSION: Autonomic cardiac control during the waking period shows little variation with the time of day in both groups. We observed that vagal cardiac function was reduced in patients with coronary artery disease by heart rate spectral analysis. It is suggested that ischemic changes in patients with coronary artery disease underlying reduced vagal cardiac function is associated with increased sympathetic activity.
Angina Pectoris*
;
Arrhythmias, Cardiac
;
Cardiovascular System
;
Coronary Artery Disease
;
Diabetes Mellitus
;
Electrocardiography, Ambulatory
;
Heart Failure
;
Heart Rate*
;
Heart*
;
Humans
;
Hypertension
;
Ischemic Attack, Transient
;
Leisure Activities
;
Myocardial Infarction
;
Myocardial Ischemia
5.Effects of wax rim in image registration of intraoral and face scan in edentulous arch condition
Sang-Hyeok SEO ; Cheong-Hee LEE ; Kyu-Bok LEE ; So-Yeun KIM ; Du-Hyeong LEE
Journal of Dental Rehabilitation and Applied Science 2024;40(3):135-141
Purpose:
The purpose of this study was to investigate the accuracy of image merging of an intraoral scan of an edentulous arch to a facial scan using wax rim and markers. .
Materials and Methods:
For registration of oral scan to face scan, a wax rim with markers wasmade. The markers were cuboid and divided into four groups according to size (5, 10 mm) and attachment location (midline, canine region). The evaluation of registration accuracy was compared with a standard created using cone-beam computed tomographydata. Anterior linear variation of the edentulous arch and the 3D variation of the overall arch were measured. Kruskal-Wallis test and Mann-Whitney U test were used for statistics, and the significance level was set at 0.05 and evaluated under Bonferroni correction (0.05/6 = 0.083).
Results:
In the anterior deviation and global deviation results, there was no statistically significant difference in the oral scan position displacement values between the 5 mm and 10 mm groups. When the midline marker was used, the intraoral scan position displacement value was significantly lower than when only the canine marker was used.
Conclusion
Marker attached wax rim can be used for image matching between facial and intraoral scans of the edentulous arch. Marker location at the middle area increases the accuracy of image matching.
6.Effects of wax rim in image registration of intraoral and face scan in edentulous arch condition
Sang-Hyeok SEO ; Cheong-Hee LEE ; Kyu-Bok LEE ; So-Yeun KIM ; Du-Hyeong LEE
Journal of Dental Rehabilitation and Applied Science 2024;40(3):135-141
Purpose:
The purpose of this study was to investigate the accuracy of image merging of an intraoral scan of an edentulous arch to a facial scan using wax rim and markers. .
Materials and Methods:
For registration of oral scan to face scan, a wax rim with markers wasmade. The markers were cuboid and divided into four groups according to size (5, 10 mm) and attachment location (midline, canine region). The evaluation of registration accuracy was compared with a standard created using cone-beam computed tomographydata. Anterior linear variation of the edentulous arch and the 3D variation of the overall arch were measured. Kruskal-Wallis test and Mann-Whitney U test were used for statistics, and the significance level was set at 0.05 and evaluated under Bonferroni correction (0.05/6 = 0.083).
Results:
In the anterior deviation and global deviation results, there was no statistically significant difference in the oral scan position displacement values between the 5 mm and 10 mm groups. When the midline marker was used, the intraoral scan position displacement value was significantly lower than when only the canine marker was used.
Conclusion
Marker attached wax rim can be used for image matching between facial and intraoral scans of the edentulous arch. Marker location at the middle area increases the accuracy of image matching.
7.Effects of wax rim in image registration of intraoral and face scan in edentulous arch condition
Sang-Hyeok SEO ; Cheong-Hee LEE ; Kyu-Bok LEE ; So-Yeun KIM ; Du-Hyeong LEE
Journal of Dental Rehabilitation and Applied Science 2024;40(3):135-141
Purpose:
The purpose of this study was to investigate the accuracy of image merging of an intraoral scan of an edentulous arch to a facial scan using wax rim and markers. .
Materials and Methods:
For registration of oral scan to face scan, a wax rim with markers wasmade. The markers were cuboid and divided into four groups according to size (5, 10 mm) and attachment location (midline, canine region). The evaluation of registration accuracy was compared with a standard created using cone-beam computed tomographydata. Anterior linear variation of the edentulous arch and the 3D variation of the overall arch were measured. Kruskal-Wallis test and Mann-Whitney U test were used for statistics, and the significance level was set at 0.05 and evaluated under Bonferroni correction (0.05/6 = 0.083).
Results:
In the anterior deviation and global deviation results, there was no statistically significant difference in the oral scan position displacement values between the 5 mm and 10 mm groups. When the midline marker was used, the intraoral scan position displacement value was significantly lower than when only the canine marker was used.
Conclusion
Marker attached wax rim can be used for image matching between facial and intraoral scans of the edentulous arch. Marker location at the middle area increases the accuracy of image matching.
8.A Case of Loeffler's Endocarditis with Acute Obstruction of Common Iliac Artery.
Sang Kon SHIN ; Du Ha LEE ; Sung Ho HUR ; Jeong Ku KIM ; Hyun Taek LEE ; Hong Sok LEE ; Jin Ha KOO ; Tae Ho JUNG ; Sang Min LEE ; O Jun KWON
Korean Circulation Journal 1999;29(11):1264-1264
Loeffler's endocarditis is a recognized complication of diseases associated with eosinophilia. This disease is considered to be a part of the idiopathic hypereosinophilic syndrome, which is characterized by persistently elevated blood eosinohil counts with symptoms and signs of organ involvement especially in the heart, nervous system, and bone marrow. We have experienced a case of Loeffler's endocarditis in a 51 years old man who complained of leg pain due to acute closure of left iliac artery by emboli. We found left ventricular mural thrombus by echocardiography and confirmed Loeffler's endocarditis by endomyocardial biopsy. We present a case with the review of literatures.
Biopsy
;
Bone Marrow
;
Echocardiography
;
Eosinophilia
;
Heart
;
Humans
;
Hypereosinophilic Syndrome*
;
Iliac Artery*
;
Leg
;
Middle Aged
;
Nervous System
;
Thromboembolism
;
Thrombosis
9.A Case of Idiopathic Long QT Syndrome(LQTS).
Seong Min YUN ; Jun Yeon WON ; Young Dae KIM ; Yong Ho JO ; Seong Ho HEU ; Du Ha LEE ; Sang Min LEE ; Toe Ho JUNG
Korean Circulation Journal 1997;27(6):658-665
The idiopathic long-QT syndrome is an infrequent inherited disorder, characterized by prolonged QT interval and by the occurrence of life-threatening tachyarrhythmia, particularly in association with emotional or physical stree. In its characteristic presentation, with obvious QT prolongation and stree induced syncope with torsades de points, the diagnosis is straightforward for physicians aware of the disease. But sometimes in cases of borderline QT prolongation and vague symptom, a correct diagnosis is delayed and frequently misdiagnosed as a seizure disorder. The mortality of untreated symptomatic patients with LQTS exceeds 20% in the year after their first syncopal episode and aapproaches 50% within 10 years. But this high mortality rate has been significantly reduced by the use of pharmacological or surgical antiadrenergic therapy or both. So early detection of the disease and antiadrenergic treatment sympathetic innervation to the heart. Second, there was intrinsic gene abnormality in the mechanisms responsible for cardiac repolarization. We report one case of LQTS in a 24 years old female patient who had been suffering from stree related syncope. Her initial EKG had prologed QT interval(588msec) and increased QT intrval dispersion(200msec). In the Holter monitor, long and short cycle sequence induced (pause-dependent) torsades de pointes was detected. She has been treated by beta-blocker and has maintained her condition without recurrence of the symptoms.
Diagnosis
;
Electrocardiography
;
Epilepsy
;
Female
;
Heart
;
Humans
;
Long QT Syndrome
;
Mortality
;
Recurrence
;
Syncope
;
Tachycardia
;
Torsades de Pointes
;
Young Adult
10.Two Patients with Hemiparesis as Manifestation of Status Epilepticus.
In Uk SONG ; Joong Seok KIM ; Yeong In KIM ; Sang Bong LEE ; Du Shin JEONG ; Kwang Soo LEE
Journal of the Korean Geriatrics Society 2006;10(4):311-315
Inhibitory motor seizure or ictal hemiparesis is very infrequent seizure type and sometimes difficult to differentiate from acute cerebrovascular disease. We report two patients with hemiparesis as manifestation of status epilepticus. One patient showed epileptic discharge on midline frontocentral region by EEG-Video monitoring, another patient showed continuous slowing wave associated with hyperperfusion findings of brain SPECT on left fronto-temporo-parietal region. Both patients showed normal brain imaging.
Brain
;
Humans
;
Neuroimaging
;
Paresis*
;
Seizures
;
Status Epilepticus*
;
Tomography, Emission-Computed, Single-Photon