1.Clinical significance of brain SPECT in zipeprol abusers.
Dai Ok CHO ; Jae Phil KIM ; Deog Yoon KIM ; Hyung In YANG ; Eun Mi KOH ; Kwang Mi KIM ; Young Kil CHOI
Korean Journal of Nuclear Medicine 1993;27(1):22-27
No abstract available.
Brain*
;
Tomography, Emission-Computed, Single-Photon*
2.Ultrasonic differential diagnosis of stones and carcinomas in the extrahepatic biliary tree
Dai Hyun CHO ; Kie Tae KIM ; Kyung Sub SHINN ; Chan Young BANG ; Sei Chul YOON ; Yong Whee BAHK
Journal of the Korean Radiological Society 1983;19(1):161-167
Ultrasonography is a simple, noninvasive and relatively accurate method to differentiate carcinomas from stones in the extrahepatic biliary tree. We analysed ultrasonic findings in 18 stoen cases and 10 carcinoma cases of the extrahepatic biliary tree, which were confirmed by microscopic examination or percutaneous transhepatic cholangiography during the period of May 1980 through May 1982 in Kangnam St. Mary's Hospital. The results were as follows: 1. The number of incidences of multiple echogenecities was 11 out of the 18 stone cases (61.1%) but there were no incidences of multiple echogenecities among the carcinoma cases. Eight cases, four of stoens and carcinomas each , were not detected by sonography. 2. The average diameter of the stones was below 20mm in 13 of the 18 cases (72 .2%) and the number of the stoens over 20mm in diameter was only one of the 18(5.6%), while the number of carcinomas over 20mm was three of the 10 cases (30%). 3. In the 18 patients with stoens, the degree of echogenecity was uniformly high in seven (38.9%) and mixed-moderate in seven (38.9%) . All the carcinomas, however, presented mixed-slight echogenecity. The marginal sharpness was well defined in nine of the 18 stone cases (50%), but only one among the carclnomas. 4. The obstructive site in the biliary tree in the stone cases showed a typical meniscus in 10 (55 .6%), abrupt cutting in four (22_2%) and were indiscernible in four (22.2%). But of the 10 carcinoma cases four (40%) were of abrupt cutting, two (20%) funnel
Acoustics
;
Bile Ducts, Extrahepatic
;
Biliary Tract
;
Cholangiography
;
Diagnosis, Differential
;
Dilatation
;
Humans
;
Incidence
;
Methods
;
Ultrasonics
;
Ultrasonography
3.Two Cases of Crossed Renal Ectopia with Fusion.
Kwang Don LEE ; Jeong Hoon LEE ; Yong Hyun CHO ; Dai Haing CHO ; Moon Soo YOON
Korean Journal of Urology 1985;26(5):523-528
Crossed renal ectopia is uncommon congenital anomaly. We report two cases of crossed renal ectopia with fusion with review of literatures. One case was S-shaped kidney with a renal stone in inferior kidney, and the other was lump kidney.
Kidney
4.Second Branchial Cleft Cyst of the Oropharyux: A Case Report.
Sang Hyun PAIK ; Hyun Sook KIM ; Seung Il MOON ; Yun Sun CHOI ; Jae Min CHO ; Sung Bum CHO ; Sook Ja YOON ; Dai Hong KIM ; Yong Kyu YOON
Journal of the Korean Radiological Society 2001;44(6):671-674
We report a very rare type of second branchial cleft cyst located at the oropharynx, and include a review of the literature. CT scans of the neck revealed a homogeneous non-enhancing low-density mass in the right posterolateral mucosal wall of the oropharynx. Only the peripheral capsule of the mass was enhanced. The cyst was resected perorally and proved to be a type-IV second branchial cleft cyst.
Branchial Region*
;
Branchioma*
;
Neck
;
Oropharynx
;
Tomography, X-Ray Computed
5.Resistance to Cisplatin Renders High Metastatic Potential in Human Non-Small Cell Lung Cancer Cell Line.
Dae Won CHA ; Jhin Gook KIM ; Dong Suep SOHN ; Dai Yoon CHO ; Ki Min YANG
The Korean Journal of Thoracic and Cardiovascular Surgery 2001;34(5):377-385
BACKGROUND: Resistance to cytotoxic drugs such as cisplatin is an important cause of treatment failure in lung cancer. The mechanisms are omplex and have yet to be clearly elucidated, but the acquisition of drug resistance possibly has resulted in poor survival. The purpose of the study is to evaluate whether the resistant tumor cells would gain more potential for metastasis. MATERIAL AND METHOD: we examined the metastatic potential of a cisplatin-reisistant cell line, H460/CIS, which was established from the human lung cancer cell line H460 by in vitro selection with gradually increased concentration of cisplatin. The parental cisplatin-sensitive cell line(H460) was used as the control and analysis on the expression of angiogenesis or growth-related factors, gelatin zymographic analysis and in vivo spontaneous metastatic experiment in nude mice were done. RESULT: Increased levels of vascular endothelial growth factor(VEGF) and basic fibroblast growth factor (bFGF) were found in H460/CIS. Gelatin zymographic analyses showed that proteinase A in the culture medium of H460/CIS was processed from latent to activated form. The in vivo experiment showed that H460/CIS cells spontaneously metastasized to the lungs but parental cells did not. CONCLUSION: resistance to the chemotherapeutic agents may render the tumor aggressi-veness and metastatic potential. Therefore, the risk, rather than benefit, from inadvertent application of adj uvant or neoadj uvant chemotherapy to early-staged lung cancer should be considered.
Animals
;
Carcinoma, Non-Small-Cell Lung*
;
Cell Line*
;
Cisplatin*
;
Drug Resistance
;
Drug Therapy
;
Fibroblast Growth Factor 2
;
Gelatin
;
Humans*
;
Lung
;
Lung Neoplasms
;
Mice
;
Mice, Nude
;
Neoplasm Metastasis
;
Parents
;
Treatment Failure
6.Four Cases of Scar Endometriosis.
Tae Wook YOO ; Dai Hyun CHUNG ; Kyung Tai KIM ; Soo Hyun CHO ; Moon Il PARK ; Jung Bae YOO ; Yoon Yeoung HWANG ; Dae Woon KIM
Korean Journal of Obstetrics and Gynecology 1997;40(10):2335-2339
Scar endometriosis is one of the rare conditions among the extrapelvic endometriosis, but it often occurs after pelvic operation and episiotomy. Four cases of scar endometriosis following Cesarean section and episiotomy were exp- erienced and treated with complete surgical excision. Therefore we reported these cases with concerned literatures.
Cesarean Section
;
Cicatrix*
;
Endometriosis*
;
Episiotomy
;
Female
;
Pregnancy
7.Neonatal Patent Ductus Arteriosus Ligation Operations Performed by Adult Cardiac Surgeons.
Yoon Sang CHUNG ; Dai Yun CHO ; Hyun KANG ; Na Mi LEE ; Joonhwa HONG
The Korean Journal of Thoracic and Cardiovascular Surgery 2017;50(4):242-246
BACKGROUND: Patent ductus arteriosus (PDA) ligation is usually performed by congenital cardiac surgeons. However, due to the uneven distribution of congenital cardiac surgeons in South Korea, many institutions depend solely on adult cardiac surgeons for congenital cardiac diseases. We report the outcomes of PDA ligations performed by adult cardiac surgeons at our institution. METHODS: The electronic medical records of 852 neonates at Chung-Ang University Hospital, Seoul, South Korea from November 2010 to May 2014 were reviewed to identify patients with PDA. RESULTS: Of the 111 neonates with a diagnosis of PDA, 26 (23%) underwent PDA ligation. PDAs were ligated within 28 days of birth (mean, 14.5±7.8 days), and the mean gestational age of these patients was 30.3±4.6 weeks (range, 26 to 40 weeks) with a mean birth weight of 1,292.5±703.5 g (range, 480 to 3,020 g). No residual shunts through the PDA were found on postoperative echocardiography. There was 1 case of 30-day mortality (3.8%) due to pneumonia, and 6 cases of in-hospital mortality (23.1%) after 30 days, which is comparable to results from other centers with congenital cardiac surgery programs. CONCLUSION: Although our outcomes may not be generalizable to all hospital settings without a congenital cardiac surgery program, in select centers, PDA ligations can be performed safely by adult cardiac surgeons if no congenital cardiac surgery program is available.
Adult*
;
Birth Weight
;
Cardiac Surgical Procedures
;
Diagnosis
;
Ductus Arteriosus, Patent*
;
Echocardiography
;
Electronic Health Records
;
Gestational Age
;
Heart Defects, Congenital
;
Heart Diseases
;
Hospital Mortality
;
Humans
;
Infant, Newborn
;
Korea
;
Ligation*
;
Mortality
;
Parturition
;
Pneumonia
;
Seoul
;
Surgeons*
;
Thoracic Surgery
8.Clinical Effect of Spectinomycin on Acute Gonorrheal Urethritis.
Dai Haing CHO ; Sung Yung CHUNG ; Moon Soo YOON ; Yung Sun UH ; Soo Kil LIM
Korean Journal of Urology 1974;15(3):195-199
Forty five gonococcal patients were treated with spectinomycin hydrochloride at the Department of Urology, St. Mary's Hospital from August 1. 1972 to December 32. 1972. All patients were male and confirmed as acute gonorrheal urethritis by gram stained smear or culture. The cure ability in this series was very satisfactory The results were as follows; 1. Gram negative ;intracellular diplococci was controlled in 29 patients (96.7%) among 3O patients with pure gonococcal infection with a single injection of spectinomycin hydrochloride. 2. Gram negative intracellular diplococci was controlled in 14 patients (93.3%) among 15 patient with mixed infection with a single injection of spectinomycin hydrochloride. 3. Only two in all patients were controlled in gram negative intracellular diplococci with repeat injection. 4. 4 patients (13.3%) of the pure gonoccoccal patients with a single injection were converted to non-specific urethritis, which were treated with combination of other antibiotics. 5. 5 patients (33.3%) of the mixed infected patients with a single injection were converted to nonspecific urethritis, which were treated with combination of other antibiotics. 6. No side effect was noted in all patients.
Anti-Bacterial Agents
;
Coinfection
;
Humans
;
Male
;
Spectinomycin*
;
Urethritis*
;
Urology
9.Clinical Effect of Spectinomycin on Acute Gonorrheal Urethritis.
Dai Haing CHO ; Sung Yung CHUNG ; Moon Soo YOON ; Yung Sun UH ; Soo Kil LIM
Korean Journal of Urology 1974;15(3):195-199
Forty five gonococcal patients were treated with spectinomycin hydrochloride at the Department of Urology, St. Mary's Hospital from August 1. 1972 to December 32. 1972. All patients were male and confirmed as acute gonorrheal urethritis by gram stained smear or culture. The cure ability in this series was very satisfactory The results were as follows; 1. Gram negative ;intracellular diplococci was controlled in 29 patients (96.7%) among 3O patients with pure gonococcal infection with a single injection of spectinomycin hydrochloride. 2. Gram negative intracellular diplococci was controlled in 14 patients (93.3%) among 15 patient with mixed infection with a single injection of spectinomycin hydrochloride. 3. Only two in all patients were controlled in gram negative intracellular diplococci with repeat injection. 4. 4 patients (13.3%) of the pure gonoccoccal patients with a single injection were converted to non-specific urethritis, which were treated with combination of other antibiotics. 5. 5 patients (33.3%) of the mixed infected patients with a single injection were converted to nonspecific urethritis, which were treated with combination of other antibiotics. 6. No side effect was noted in all patients.
Anti-Bacterial Agents
;
Coinfection
;
Humans
;
Male
;
Spectinomycin*
;
Urethritis*
;
Urology
10.Oral Nicardipine Versus Intravenous Ritodrine for the Treatment of Preterm Labor.
Tae Bok SONG ; Yoon Ha KIM ; Jin CHOI ; Woo Dai KANG ; Yoon Sang OH ; Myoung Seon KANG ; Moon Kyoung CHO
Korean Journal of Obstetrics and Gynecology 2002;45(12):2153-2157
OBJECTIVE: This study was conducted to compare the efficacy and safety of oral nicardipine in acute therapy for preterm labor with those of parenteral ritodrine hydrochloride. METHODS: Patients between 24 and 34 weeks' gestation with documented preterm labor were randomly assigned to receive oral nicardipine (n=31) or intravenous ritodrine (n=32) as initial tocolytic therapy. Patients in the nicardipine group received a 40-mg loading dose and then 20 mg every 2 hours as needed to stop contractions (total 80 mg). Patients in the ritodrine group received a 0.05 mg/min as initial dose. The dose was increased at 15-minute intervals until uterine contractions were inhibited or side effects became intolerable. The maximum recommended dose was 0.35 mg/min. Patients could be switched to another tocolytic regimen if they continued to have contractions after 6 hours of therapy. The main outcome variables examined were failure of tocolysis, time to uterine contractions equal or less than 5 times per hour, time to uterine quiescence, time gained in utero, and frequency of adverse medication effects. RESULTS: There were no significant differences in maternal demographic characteristics between the groups. Successful tocolysis, defined as cessation of uterine contractons less than 6 hours from initial dose, was observed in 58.1% in the nicardipine group and 65.6% in the ritodrine group (P=.544). Among patients with successful tocolysis who responded with uterine quiescence within 6 hours, there was no significant difference in the time to uterine quiescence in the ritodrine group (P=.087). Time to uterine contractions equal or less than 5 times per hour from initial treatment showed no significant difference between the two groups with successful tocolysis (P=.097). The patients in the ritodrine hydrochloride group had more adverse side effects, mainly maternal tachycardia (P=.013) and nausea and/or vomiting (P=.006). CONCLUSION: Oral nicardipine was effective, safe, and well-tolerated tocolytic agent. Patients who received ritodrine hydrochloride were more likely to have adverse medication effects.
Female
;
Humans
;
Nausea
;
Nicardipine*
;
Obstetric Labor, Premature*
;
Pregnancy
;
Ritodrine*
;
Tachycardia
;
Tocolysis
;
Uterine Contraction
;
Vomiting