1.Anatomy of Pulmonary Lobes and Fissure: A Study Utilizing HRCT.
Tae Hwan LIM ; Kyung Il CHUNG ; In Hyuk CHUNG
Journal of the Korean Radiological Society 1994;31(6):1073-1080
PURPOSE: This study was performed to evaluate the features of pulmonary lobes and fissure in Korean and to compare with the previous results. MATERIALS AND METHODS: HRCT scans of 82 healthy Korean adults, performed with scan interval of 1.5/2.0 cm, were reviewed. RESULTS: Located mostly on inner aspect, incidences of incomplete oblique and horizontal fissure were 60% (Rt 48%, Lt 39%) and 51% respectively, lower than 70--80% and 60--75% of western studies. Superolateral oblique fissure, inferior accessory fissure, left horizontal fissure and other accessory fissure were shown in 1%, 13%, 7%, and 8% respectively. Lower lobe upper part faced laterally (Rt 91%, Lt 82%) while lower part faced medially (Rt 61%, Lt 79%). Right middle lobe ws highest posteromedially (49%) and was convex (97%). CONCLUSION: Features of pulmonary lobes and fissure in Korean were similar to the results of previous reports but with lower incidence of variation.
Adult
;
Humans
;
Incidence
2.Study of a Simplified Screening System for Cataract Patient.
Seung Hwan SHIN ; Kyung Hwan SHYN
Journal of the Korean Ophthalmological Society 1999;40(2):396-402
Recently, the number of surgeries with age-related cataracts has increased remarkably high due to the safety of modern cataract surgery and reliable post-operative visual function has been widely recognized by patients. In spite of such an increase in the number of patients, the authors specualtes that there are still many cataract patients with highly deteriorated visual function who havehad no occasion to receive an ocular examinatio. In order to screen such patients during their general health examination, the authors` study group experienced and evaluated the simplified cataract screening system recently proposed by Sasaki et al, Kanazawa Medical University in Japan. The cataract screening system consists of two steps; primary screening system is 12-item questionnaires, and far vision. In order to evaluate the screening system in Korea, it was used to test 224 indivisual who had wanted to be examined ophthalmologically in two area, Yongsan, Seoul and Donghae, Gangwondo province. Initially, well-trained nurse did the screening system, and then the same patients were examined by one ophthalmologist. The agreement ratio between the screening test and the final judgement for cataract was 70.8% and the final cataract-screening rate was 95.1%. Based on these results, the authors propose the possibility of clinical use of this screening system in general health care units.
Cataract*
;
Delivery of Health Care
;
Gangwon-do
;
Humans
;
Japan
;
Korea
;
Mass Screening*
;
Surveys and Questionnaires
;
Seoul
3.Inhibition of IL-2 dependent DTLL-2 proliferation by immune complex from patient with ovarian cancer.
Sang Deuk CHUNG ; Chang Hwan PARK ; Yong Hoon CHUNG ; Kyung Hee KIM ; Yang Ja CHO
Journal of the Korean Society for Microbiology 1993;28(4):331-327
No abstract available.
Antigen-Antibody Complex*
;
Humans
;
Interleukin-2*
;
Ovarian Neoplasms*
4.Extracorporeal Shock Wave Lithotripsy in 14 Children.
Young Tae MOON ; Chung Hwan OH ; Kyung Do KIM
Korean Journal of Urology 1989;30(5):700-706
A total of 14 children underwent 29 treatments with EDAP-LT01 extracorporeal shock wave lithotripsy for urinary tract stones between February, 1987 and ugust, 1988. The results were obtained as follows : 1. The sex ratio was about A 2:1, 9 (64.3%) in male and 5 (35.7%) in female patients. The average patient age was 7.1 years with a range of 2 to 16 years. 2. Treated stone locations were kidney in 8 children (57.1% ) ; calyx in 6 (42.8% ) and renal pelvis in 2 (14.3% ) and ureter in 6 (42.9% ) ; upper ureter in 2 (14.3% ) and lower ureter in 4 (28.6 %). There were multiple renal stone in 4 (28.6% ) and bilateral renal stone in 1 (7.1%), the average stone size was 1.6cm with a range of 0.7 to 3.1cm. 3. The average numbers of treatment were 1.8 sessions and the average treatment time was 38.7 minutes. The average storage required was 107 in one session. 4. Of the 11 patients whose age was less than 10 years, 10 (71.4% ) required caudal anesthesia. Three patients whose age was more than 10 years treated without any type of anesthesia. 5. The total average success rate of treatment-ended 11 patients was 81.8% in stones of 0.7-3.0cm. The cause of failed ESWL were stone component in 1 and impacted stone in 1. 6. All or the patients were not required the pre and post-ESWL additional manipulation. ESWL complications were not required admission and surgical management. Therefore, we confirmed that EDAP-LT01 ESWL is a safe, effective and easily applicable technique for treatment of urinary stones in children.
Anesthesia
;
Anesthesia, Caudal
;
Child*
;
Female
;
Humans
;
Kidney
;
Kidney Pelvis
;
Lithotripsy*
;
Male
;
Sex Ratio
;
Shock*
;
Ureter
;
Urinary Calculi
5.Diffuse Panbronchiolitis: High-Resolution CT Findings and Correla:don with Pulmonary Function Test.
Koun Sik SONG ; Tae Hwan LIM ; Hymn Kyung SUNG ; Kyung Il CHUNG
Journal of the Korean Radiological Society 1994;30(1):77-81
PURPOSE: Diffuse panbronchiolitis(DPB) is a chronic inflammatory airway disease of unknown causes mainly affecting the respiratory bronchioles and the more proximal bronchi. Findings on chest radiographs and high-resolution CT(HRCT) are well known and Akira classified HRCT findings of DPB into four types. Purpose of this study is to evaluate the relationship between findings of HRCT and PFT. METHODS AND MATERIALS: We retrospectively analyzed the chest radiographs and HRCT images of eleven patients with DPB and compared CT classification with pulmonary function test. RESULTS: Chest radiographs usually showed small nodular opacities throughout the both middle and lower lungs. The HRCT findings of DPB were centrilobularly distributed small nodular densities, branching linear densities contiguous with small round densities, dilated and thickened peripheral and central airways including bronchioles. More than one CT type by Akira's classification, usually two or three types, were found in nine patients. There was good correlation between CT types and FEV1%(p<0.05), CT types and FEV1/FVC (p<0.05) respectively. CONCLUSION: HRCT seems to be more useful for diagnosis and disease progression of DPB as compared with the chest radiographs or clinical stage such as pulmonary function test.
Bronchi
;
Bronchioles
;
Classification
;
Diagnosis
;
Disease Progression
;
Humans
;
Lung
;
Radiography, Thoracic
;
Respiratory Function Tests*
;
Retrospective Studies
6.Percutaneous biliary drainage
Yun Hwan KIM ; Kyung Chun HONG ; Kyung Ho YOO ; Kyoo Byung CHUNG ; Won Hyuck SUH
Journal of the Korean Radiological Society 1982;18(3):558-568
Percutaneous biliary drainage is an effective new nonsurgical method for combined external/internal catheterdecompression of obstructed extrahepatic bile ducts. Molnar and Stockum, and more recently others, have reportedsucdess utilizing this approach to establish biliary drainage in patients with obstructive jaundice. Percutaneousbiliary drainage was performed in 9 patients with obstructive jaundice. Internal drainage was accomplished in 4patients (44.4%), and external drainage in 5 patients (55.6%). Major complications occurred in 2 patients; bileleakage, one; sepsis, one. Minor complications occurred in 7 patients; mild or high fever, 5 cases; transienthemobilia, 2 cases. The catheter management problems encoutered including pain, catheter dislodgement ormigration, lumen occulusion, and external bile leakage.
Bile
;
Bile Ducts, Extrahepatic
;
Catheters
;
Drainage
;
Fever
;
Humans
;
Jaundice, Obstructive
;
Methods
;
Sepsis
7.A Case of Severe Neurological Damage and Blindness after Infection of Lidocaine for Cataract Operation.
Seung Hwan SHIN ; Sung Min KHO ; Kyung Hwan SHYN
Journal of the Korean Ophthalmological Society 1998;39(8):1897-1902
At the present time, lidocaine is commonly used in ophthalmic surgery as a local anesthetic. Although it is safer than general anesthesia, visionthreatening and even life-threatening side effect can occur rarely. We report one case of visual loss combined with severe neurologic damage after local injection of lidocaine. Fifty-year-old male patient underwent phacoemulsification and IOL transscleral implantation with unplanned anterior vitrectomy after Nadbath-Ellis akinesia and retrobulbar anesthesia with lidocaine with 1:100,000 epinephrine. After operation, the patient had visual loss, facial palsy, total ophthalmoplegia, severe proptosis and submandibular swelling. There were no evidences of eyeball perforation, retrobulbar hemorrhage, and direct nerve injury. Although the mechanism of nerve injury is not well explainable, we suggest lidocaine toxic reaction. To our knowledge, This is the first reported case in the literature. We report this case with available literature review.
Anesthesia
;
Anesthesia, General
;
Blindness*
;
Cataract*
;
Epinephrine
;
Exophthalmos
;
Facial Paralysis
;
Humans
;
Lidocaine*
;
Male
;
Ophthalmoplegia
;
Phacoemulsification
;
Retrobulbar Hemorrhage
;
Vitrectomy
8.`97 Survey of Korean society of Cataract and Refractive Surgery Members.
Kyung Hwan SHYN ; Seung Hwan SHIN ; Jae Soon KIM
Journal of the Korean Ophthalmological Society 1999;40(4):949-958
Cataract and refractive surgical procedures are now among the most common and successful in medicine. A clear understanding of the current situation and future trends in these fields has become increasingly important. Since 1995, we have annually surveyed the members of the Korean Society of Cataract and Refractive surgery(KSCRS) about cataract surgery technique, anesthesia, intraocular lens and refractive surgery. Third annual survey forms consisted of 71 multiple-choice questions were mailed in January 1998 to 180 ophthalmologist members of the KSCRS. Approximately 44% of the questionnaires mailed were returned by the February cutoff date. Current data were compared with data in previous annual survey. Over half of the respondents(52%) were in forties. Most of the cataract operation(83%) was carried out on hospitalized patients. Use of a retrobulbar with akinesia for cataract was 49%, and use of topical anesthesia increased from 5% in 1995 to 17% in 1996. Eight-one percent of surgeons used phacoemulsification for more than half of their patients. Selfsealing wound construction was main wound closure technique in phacoemulsification for 44%. The type of intraocular lens used for small incision cataract surgery included silicone(64%), small round PMMA(polymethyl methacrylate, 21%), and acrylic(11%). Sixty-three percent of surgery. From the answers to the survey, we found current trend and these results are valuable information to all ophthalmologists.
Anesthesia
;
Cataract*
;
Humans
;
Lenses, Intraocular
;
Phacoemulsification
;
Postal Service
;
Refractive Surgical Procedures*
;
Wound Closure Techniques
;
Wounds and Injuries
;
Surveys and Questionnaires
9.Current Trends in Cataract and Refractive Surgery in Korea: 1999 Survey for KSCRS Members.
Kyung Hwan SHYN ; Jeong Hwan OH ; Gun Sik PARK
Journal of the Korean Ophthalmological Society 2001;42(5):713-723
PURPOSE: Cataract and refractive surgical procedures are now among the most common and successful surgeries in medicine. Since 1995, we have annually surveyed the members of the Korean Society of Cataract and Refractive Surgery(KSCRS) on cataract surgery technique, anesthesia, intraocular lens and refractive surgery to understand the current situation and future trends in these fields. METHODS: Fifth annual survey forms consisted of 80 multiple-choice questions mailed in January 2000 to 234 ophthalmologists of the KSCRS. Approximately 47% of the questionnaires mailed were returned by the February cutoff date. Current data were compared with previous annual survey and data from Japan and USA. RESULTS: Hospitalized period is decreased annually and use of topical anesthesia(38%) increased steady. Self sealing wound construction was the main wound closure technique in phacoemulsification accounted for 41%. Most preferred intraocular lenses for small incision cataract surgery are silicone(60%), acrylic (33%), and PMMA(7%). Especially, acrylic intraocular lens had been used highly. Viscoelastics(38%) produced by Korean medical company becomes widely used compared with previous year. 61% of the respondents were performing excimer laser keratomy for refractive surgery. Its complications are the regression of visual acuity(39%), halo or glare(36%), and irregular astigmatism(15%). 52% of the respon-dents performing LASIK had the experience of thin or perforated flap formation, and 48% had free cap formation. Also, legal problems on excimer laser and LASIK have been increased highly. CONCLUSION: From this survey, we found current trend and change in cataract and refractive surgery in Korea are similar to those of Japan and USA.
Anesthesia
;
Cataract*
;
Surveys and Questionnaires
;
Japan
;
Keratomileusis, Laser In Situ
;
Korea*
;
Lasers, Excimer
;
Lenses, Intraocular
;
Phacoemulsification
;
Postal Service
;
Refractive Surgical Procedures*
;
Wound Closure Techniques
;
Wounds and Injuries
10.A study on CT stage of cervix cancer
Kyung Hi LEE ; Ki Hwan KIM ; Ki Hyeun CHANG ; Seong Hwan HA ; Charn Il PARK ; Man Chung HAN
Journal of the Korean Radiological Society 1982;18(4):850-858
CT findings and comparison between clinical and CT staging were reviewed in 45 consecutive patients withbiopsy proven carcinoma of the cervix. CT was done for staging of primary untreted cercial cancer in 36 patientsand for diagnosis of recurrent cervical cancer or follow-up study 14 times in 9 patients . The results are asfollows; 1. As comparing with clinical staging in 36 cases, CT agreed with clinical stage in 19 cases (52.8%),upstaged in 10 cases(27.8%) and downstaged inn 7 cases (19.4%). 2. The main upstaged CT findings are detection ofunsuspected bladder or rectal invasion and paraaortic lymph node metastasis. Inadequate delineation ofintravaginal tumor was the leading causes of understage of CT than clinical one. 3. CT detected all 10 cases ofthe hydronephrosis shown by IVP and detected unsuspected bladder invasion in 3 cases. 4. CT was valuable in thediagnosis of recurrent tumor and follow-up study after treatment. 5. CT offeres distinct advantages over clinicalstaging and can be integrated into the present FIGO classification of uterine cervix carcinoma. CT can served asan initial radiological staging work-up of primary of recurrent cervical carcinoma.
Cervix Uteri
;
Chungcheongnam-do
;
Classification
;
Diagnosis
;
Female
;
Follow-Up Studies
;
Humans
;
Hydronephrosis
;
Lymph Nodes
;
Neoplasm Metastasis
;
Urinary Bladder
;
Uterine Cervical Neoplasms