1.A clinical analysis of respiratory failure in patients with acute organophosphorus poisoning.
Hyung Kug RYU ; Hyung Won HAN ; Hee Young CHO ; In Hwan KIM ; Il Se LEE ; Kyung Min LEE
Korean Journal of Medicine 1993;45(4):507-515
No abstract available.
Humans
;
Organophosphate Poisoning*
;
Respiratory Insufficiency*
2.CHONDROBLSTOMA ON TEMPOROMANDIBULAR JOINT, A CASE REPORT.
Hyun Ho CHANG ; Seung Yun HAN ; Hyung Mo AHN ; Won Jong CHOI ; Jae Seung KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1997;23(4):756-762
Chondroblastoma is a rare primary bone tumor which originates from cartilage, and represents approximate 1% af all bone tumor. The chondroblastoma arises most frequently from the epiphysis of the long bones with the humerus being the commonest site. It afflicts usually the young under 25 years with greater incidence in male. As there is no cartilage cell on craniofacial bone which is mainly fromed by intramembranous ossification, the chondroblastoma on the craniofacial bone is extremely rare. But the chondroblastoma recurred frequently in craniofacial bone when the mass is excised incompletely or curretted and, as the tumor has the outstanding ability of local invasiveness, it destructs the adjacent bone. In addition, it is difficult to diagnose differentially from sarcoma or giant cell tumor histopathologically. Due to the entities described above, it is necessary to remove the entire tumor mass as complete as possible, to treat with radiation pre or postoperatively for preventing from recurrence, and to observe for a long time. The chondroblastoma on temporal bone is rare and is difficult to diagnose and treat successfully. So we'd like to present a case of chondroblastoma which was originated from temporal side of TMJ with literatural review.
Cartilage
;
Chondroblastoma
;
Epiphyses
;
Giant Cell Tumors
;
Humans
;
Humerus
;
Incidence
;
Male
;
Recurrence
;
Sarcoma
;
Temporal Bone
;
Temporomandibular Joint*
3.Urologic Aspect in the Management of VATER Anomalies.
Yoon Hyung CHUNG ; Sang Won HAN ; Taek LEE
Korean Journal of Urology 1997;38(11):1202-1209
Ten cases of VATER syndrome were reviewed to determine the type of anomalies, genitourinary anomalies, complications of treatment and prognosis. None of the four cases that were born in our hospital and six cases that were referred to us were diagnosed prenatally. Eight patients were born at full term with normal birth weight, two were premature and one showed pre-eclampsia at IUP 34 weeks.The male to female ratio was 6 to 3 with one patient having ambiguous genitalia. Tracheo-esophageal fistula was found in five patients. Three of these five patients died after the parents refused treatment, and one died the next day after birth even with treatment. Imperforate anus was observed in seven patients. Unilateral renal agenesis, crossed renal ectopia and dysplastic kidney were found in four, three (one pelvic kidney, one crossed renal ectopia with fusion, one crossed renal ectopia) and one patients, respectively. There was one hypospadias. Six of the eight patients with vertebrae anomaly survived; four of the survivors had vesicoureteral reflux (VUR) and neurogenic bladder. Two of the four patients with VUR received ureteroneocystostomy then clean intermittent catheterization (CIC), sympatholytic and antibiotics. The other two patients with neurogenic bladder received clean intermittent catheterization (CIC) and vesicostomy. Complications of recurrent urinary tract infection (UTI) and acute epididymitis occurred when descending loop colostomy was performed due to imperforate anus and urethro-rectal fistula. Separated colostomy instead of descending loop colostomy is recommended for recto-urinary fistula since infections of the upper urinary tract in such cases required ureteroneocystostomy before the correction of imperforate anus and continued antibiotic administration was needed because of the possibility of delayed wound healing and recurrent UTI. A strong will by the patient`s parents, protection of renal function through early detection of genit-ourinary anomalies and other appropriate treatments are required for the high success rate in the surgical correction of VATER syndrome.
Anti-Bacterial Agents
;
Anus, Imperforate
;
Birth Weight
;
Child
;
Colostomy
;
Cystostomy
;
Disorders of Sex Development
;
Epididymitis
;
Female
;
Fistula
;
Humans
;
Hypospadias
;
Intermittent Urethral Catheterization
;
Kidney
;
Male
;
Parents
;
Parturition
;
Pre-Eclampsia
;
Prognosis
;
Spine
;
Survivors
;
Urinary Bladder, Neurogenic
;
Urinary Tract
;
Urinary Tract Infections
;
Vesico-Ureteral Reflux
;
Wound Healing
4.FRACTURE TOUGHNESS OF VARIOUS CORE MATERIALS.
Shin Won LEE ; Sun Hyung LEE ; Jae Ho YANG ; Jung Suk HAN ; Jai Bong LEE
The Journal of Korean Academy of Prosthodontics 2001;39(6):682-697
This investigation evaluated the fracture toughness (KIC) of eight currently available core materials, and relate the fracture toughness value to fractography analysis and surface characteristics using a atomic force microscope (AFM). Single-edge notched (SEN) test specimens (n=10) and compact tension (CT) test specimens (n=10) were prepared conforming to the ASTM Standard E-399 for a high copper amalgam, three composite core materials (Core-Max II, Core Paste, Bisfil Core), two reinforced composite core materials (Ti-Core, Ti-Core Natural), a resin-modified glass ionomer core material (Vitremer), and a conventional glass ionomer core material (Ketac-Molar). The specimens were tested with an Instron Universal Testing Machine. The maximum loads were measured to calculate the fracture toughness (KIC). Thereafter, fracture surfaces of SEN specimens of each material were investigated for fractography analysis using scanning electron microscope. And, disc-shaped specimens with 1mm thickness were fabricated for each material and were investigated under AFM for surface morphology analysis. The results were as follows : 1. Bisfil Core showed the highest mean fracture toughness regardless of test methods. 2. For the tooth-colored materials, Ti-Core Natural exhibited the highest fracture toughness. 3. Ketac Molar showed a significantly low fracture toughness when compared with the amalgam and the composite resin core materials (p<0.05). 4. The fracture toughness values obtained with the single-edge notched test, except Ketac Molar, were higher than those obtained in the compact tension test. 5. SEM revealed that the fracture surface of high fracture toughness material was rougher than that of low fracture toughness material. 6. AFM revealed that the surface particles of the composite resins were smaller in size, with a lower surface roughness than the glass ionomer core materials.
Composite Resins
;
Copper
;
Glass
;
Molar
5.A Comparison of Surgical Morbidity and Postoperative Voiding Function in Infants and 1-2 year-old Children after Ureteral Reimplantation.
Korean Journal of Urology 2003;44(8):776-779
PURPOSE: The advisability of early ureteral reimplantation in infants is controversial, and to our knowledge no long-term results are available. Whether early ureteral reimplantation in infants increases surgical morbidity, compared to ureteral reimplantation after the age of 1 year, was investigated, and the long-term voiding function after ureteral reimplantation evaluated. MATERIALS AND METHODS: Between 1993 and 1999, 130 children underwent ureteral reimplantation at our institution. The diagnosis was a primary vesicoureteral reflux, obstructed megaureter and an ectopic ureter. Two groups of 64 children that underwent ureteral reimplantation were compared. Group 1 included children younger than 12 months at surgery and group 2 children those between 1 and 2 years. The long term results were evaluated with regard to surgical outcome, voiding function and urinary tract infection. An analysis of the voiding function included family interviews, uroflowmetry and post-void residual urine measurements. RESULTS: Complete long-term data were available for 47 boys and 17 girls. In Group 1, there were no complications in 50 renal units(96%), while two had postoperative reflux, and underwent macroplastique injection. In Group 2, there were no complications in 35 renal units(97.1%), while one patient had postoperative reflux, which resolved spontaneously. No significant difference was noted in the postoperative post-void residual urine volumes between the two groups. CONCLUSIONS: In our samples, early ureteral reimplantation resulted in a technical success rate of greater than 95% and low postoperative morbidity, with the exception of urinary tract infection. Our data show satisfactory bladder emptying and normal uroflowmetry. When indicated, ureteral reimplantation can be performed safely in young children, without fear of damaging bladder function.
Child*
;
Diagnosis
;
Female
;
Humans
;
Infant*
;
Replantation*
;
Ureter*
;
Urinary Bladder
;
Urinary Tract Infections
;
Vesico-Ureteral Reflux
6.The Effects of Paracetamol, Ketorolac, and Paracetamol Plus Morphine on Pain Control after Thyroidectomy.
Sun Yeul LEE ; Won Hyung LEE ; Eun Ha LEE ; Kyu Cheol HAN ; Young Kwon KO
The Korean Journal of Pain 2010;23(2):124-130
BACKGROUND: The aim of this study was to compare the efficacy of ketorolac, paracetamol, and paracetamol plus morphine on pain relief after thyroidectomy. METHODS: Eighty patients were randomly allocated to one of the 4 groups: normal saline (group C), ketorolac 30 mg (group K), paracetamol 1 g (group P), and paracetamol 700 mg plus morphine 3 mg (group PM). Each regimen was administered intravenously (IV) 30 min. before the end of surgery. If pain was not relieved, patients received an IV bolus of pethidine hydrochloride 25 mg. Pain intensity using a visual analogue scale (VAS) was recorded at 0.5, 1, 2, 4, and 6 hr after the end of surgery. RESULTS: VAS at 0.5 and 1 hr after the end of surgery were significantly lower in group K, group P, and group PM than in group C (P < 0.05). The number of patients receiving pethidine hydrochloride at 0.5 and 1 hr after the end of surgery was significantly lower in group K, group P, and group PM than in group C (P < 0.05). There was no significant difference among the groups in the incidences of adverse events associated with study medications and patient satisfaction (P > 0.05). CONCLUSIONS: Paracetamol 1 g IV possesses a similar analgesic efficacy to ketorolac 30 mg IV after thyroidectomy. Paracetamol may represent an alternative to ketorolac for pain prevention after mildly to moderately painful surgery in situations where the use of NSAIDs is unsuitable.
Acetaminophen
;
Analgesics
;
Anti-Inflammatory Agents, Non-Steroidal
;
Humans
;
Incidence
;
Ketorolac
;
Meperidine
;
Morphine
;
Patient Satisfaction
;
Thyroidectomy
7.The etiologies and the clinical manifestations of hypoglycemia in infancy and childhood.
Nam Seon BECK ; Dong Joo SHIN ; Heon Seok HAN ; Sei Won YANG ; Hyung Ro MOON
Journal of the Korean Pediatric Society 1991;34(4):480-486
No abstract available.
Hypoglycemia*
8.Suggested guidelines for vaccination of pigs in Korea.
Clinical and Experimental Vaccine Research 2015;4(1):119-120
There is no published guideline for the vaccination to pigs even though several vaccine companies suggested the program based on their products. It is very difficult to standardize the program because most of the veterinary vaccines are containing several multivalent antigens depending on the companies. Now, we are suggesting the vaccine programs based on the current situation.
Korea
;
Swine*
;
Vaccination*
;
Vaccines
9.Knowledge of orthodontics and malocclusion.
Won You LEE ; Hyung Don KIM ; Bu Suk HAN
Korean Journal of Orthodontics 1992;22(4):815-822
Orthodontists want why the patients want orthodontic treatment. Demand and need for orthodontics is very important factors of cooperation and management. Chief complaint would be different according to the race and culture. Our results show that in the control group, Korean female adolescents[chief complaint is cowding(30.6%), spacing(26.5%), upper anterior protrusion(18.4%), anterior cross bite(8.2%) in order. Korean female adolescents considered anterior cross bite is more nonacceptable than spacing and anterior protrusion. The purpose of orthodontics seemed to enhance esthetic, dental health, and to improve oral function.
Adolescent
;
Continental Population Groups
;
Esthetics, Dental
;
Female
;
Humans
;
Malocclusion*
;
Orthodontics*
10.Cementless Total Knee Arthroplasty in Rheumatoid Arthritis.
Chang Dong HAN ; Wahn Sub CHOE ; Joo Hyung YOO ; Ki Won YANG
The Journal of the Korean Orthopaedic Association 1998;33(4):983-991
We evaluated the clinical and radiologic results of 48 cases (31 patients) who had rheumatoid arthritis of the knee joint and were managed with cementless total knee arthroplasty between November 1988 and December 1994. The mean follow-up period was 3.7 years (range, 2 to 7 years). The knee score of the Hospital for Special Surgery improved from an average of 44 points (range, 5 to 77 points) preoperatively to 83 points (range, 50 to 97 points) at the time of the most recent followup examination. In knee score, 85.4% of cases had excellent or good grade (over 75 points). The range of motion improved from an average of 77 degrees to an average of 103 degrees postoperatively. In tibiofemoral angle, 95.8% of cases were between valgus I degree and 10 degrees. The implants were inserted in an optimal position. Continuous radiolucency was not visible beneath any implant and loosening was not found. In one case, heterotopic ossification was removed to improve the range of motion. There was one case of patellar fracture during operation. Even in relatively poor bone quality in rheumatoid arthritis of the knee, the cementless total knee arthroplasty revealed good clinical and radiologic results.
Arthritis, Rheumatoid*
;
Arthroplasty*
;
Follow-Up Studies
;
Knee Joint
;
Knee*
;
Ossification, Heterotopic
;
Range of Motion, Articular