1.Appropriate management of pediatric facial bone fractures.
Hee Chang AHN ; Sun Woo LEE ; Jeong Cheol KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(8):1491-1500
There is room for debate in appropriate diagnosis and treatment due to physiological and anatomical differences in pediatric facial bone fractures from that of adult's. The objectives of this article is to analyze for our clinical cases and to suggest the appropriate management of facial bone fracture in children. The study included 56 children who had treatment for the craniofacial fractures form March, 1990 to February, 1998. Their ages ranged from 3 to 15. There were 38 males and 18 females. Physical examination, simple x-rays, ultrasonograms and routine CT scans were used for diagnosis. Materials were classified into 28 nasal bone fractures, 4 nasoethmoidal fractures, 6 orbital fractures, 8 mandible fractures, and 10 zygoma fractures. Patients were treated with conservative treatment in 9 cases, with closed reduction in 28 cases and open reduction only, and 14 patients with open reduction and internal fixation using microplates and screws. 3 patients needed autogenous calvarial bone graft. Plates and screws were removed in postoperative 3-6 months. All patients had successful union of fractured bones without no specific complications, and normal bony growths were noticed during the 7 years follow up. We conclude that surgeons should be careful in diagnosis and management for the pediatric facial fracture due to anatomical variations and differences in fracture aspects. First, it is mandatory for surgeous to get accurate diagnosis and identify children's fracture and displacement through routine CT check up along with physical examination. Second, it is important to perform the minimally invasive technique or conservative treatment for the children with mild displacement so that it reduces the incidence of growth retardation which may be caused by extensive operation. However, application of rigid fixation is necessary in case of extensive bony displacement or bony defects because of poor coorporation in postoperative care. Third, plates and screws which were used for the internal fixation should be removed at 3-6 months after the surgery. Fourth, if bone graft is needed, it is better to use autogenous graft than allogeneous graft. Fifth, care for dentition and follow up for growth are necessary for growing children.
Child
;
Dentition
;
Diagnosis
;
Facial Bones*
;
Female
;
Follow-Up Studies
;
Humans
;
Incidence
;
Male
;
Mandible
;
Nasal Bone
;
Orbital Fractures
;
Physical Examination
;
Postoperative Care
;
Tomography, X-Ray Computed
;
Transplants
;
Ultrasonography
;
Zygoma
2.Microsurgical Reconstruction in Pediatric Patients.
Hee Chang AHN ; Myung Gon JUN ; Jeong Cheol KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(3):345-352
Microsurgical reconstruction is necessary for children to correct severe trauma and congenital or acuqired deformity. The aim of this study was to evaluate whether or not microsurgical reconstruction is a safe and reliable operation in children and to analyze the differences of microsurgical reconstruction in children compared to adults. The study included 12 children who underwent 13 microsurgical reconstructions among a total of 251 cases of microsurgical reconstruction from May, 1986 to August, 1998. Their ages ranged from 24 months to 14 years and 8 months. There were 7 males and 6 females. The involved sites were 9 legs, 3 hands and 1 face. The causes of microsurgical reconstruction were 9 traumas, 2 congenital anomalies, 1 acquired deformity and 1 cancer. The applied flaps were 4 scapular flaps, 2 rectus abdominis muscle flaps, 1 de-epithelized groin flap, 1 lateral arm flap, 1 forearm tendocutaneous flap, 1 forearm tendocutaneous flap, 1 latissimus dorsi muscle flap, 1 fibula flap, 1 second toe transfer, and 1 wrap-around flap. All patients have had normal growth of the donor and recipient sites without specific complications during an average 2 years follow-up. We concluded that microvascular reconstruction is a very useful and reliable procedure in children if it is performed in consideration of each child's specific characteristics and conditions.
Adult
;
Arm
;
Child
;
Congenital Abnormalities
;
Female
;
Fibula
;
Follow-Up Studies
;
Forearm
;
Groin
;
Hand
;
Humans
;
Leg
;
Male
;
Rectus Abdominis
;
Superficial Back Muscles
;
Tissue Donors
;
Toes
3.The Free Transverse Rectus Abdominis Myocutaneous(TRAM) Flap for Immediate Breast Reconstruction.
Bong Kweon PARK ; Hee Chang AHN ; Jeong Cheol KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(4):582-589
Breast cancer is the second leading cause of cancer death in women. Unfortunately, the frequency of breast cancer and mastectomy are increasing in Korea. The purpose of the study is to analyze the results of breast reconstruction using free transverse rectus abdominis myocutaneous(TRAM) flap and to suggest the operative technique for more satisfactory results. 19 patients underwent immediate breast reconstruction from 1990 to 1998, and we experienced 2 cases of bilateral immediate reconstruction of breasts following mastectomy. We have performed the free TRAM flaps based on the deep inferior epigastric vessels using microvascular technique. TRAM flap included very small portion of rectus sheath and muscle-so called muscle sparing technique. So it reduced markedly donor site morbidity. The postoperative course of these cases was uneventful with minor complication. The free TRAM flap was an excellent method of immediate breast reconstruction using autogenous tissue and provided satisfactory outcome. The goals of the immediate breast reconstruction after mastectomy are to restore body image, to achieve near normal shape of breast, and to reduce the complications. This paper represents our experience of immediate breast reconstruction using free TRAM flap, and technical options to get more satisfactory result and reduce the complications. We think this method could be regarded as the first choice for immediate breast reconstruction.
Body Image
;
Breast Neoplasms
;
Breast*
;
Female
;
Humans
;
Korea
;
Mammaplasty*
;
Mastectomy
;
Rectus Abdominis*
;
Tissue Donors
4.A Clinical Observation of Birthmarks in the Neonate.
Hee Jin CHO ; Kyu Joong AHN ; Cheol Heon LEE ; Eil Soo LEE
Korean Journal of Dermatology 1990;28(1):39-43
We observed the neonatal skin to investigate the incidence and clinical features of birthrnarks. We examined 1791 newborn babies admitted in the nursery of Kangnam Sacred Heart Hospital from July 1987 to July 1989. The results were summarized as follows. 1. Mongolian spots were observed in 1435 neonates (80.1%), occurring most frequently on the lumbosacral area. 2. Salmon patches were observed in 416 neonates (23.2%), the nape of neck being the most common site. 3. Pigmented lesions were observed in 20 neonates (1.1%). 4. Portwine stains were observed in 15 neonates (0.8%). 5. Epidermal nevi were observed in 4 neonates (0.2%) and nevus sebaceus developed in one baby.
Coloring Agents
;
Heart
;
Humans
;
Incidence
;
Infant, Newborn*
;
Mongolian Spot
;
Neck
;
Nevus
;
Nurseries
;
Salmon
;
Skin
5.A Case of Contact Dermatitis due to Herb Ointment.
Dong Geun KANG ; Kwang Soo KIM ; Hee Jin CHO ; Kyu Joong AHN ; Cheol Heon LEE
Korean Journal of Dermatology 1990;28(2):212-215
A case of contact dermatitis due to herb onintment is described in a 24 year-old female patient. After topical application of herb ointment, she developed erythematous papules and plaques on the face and neck. Patch test revealed positive reactions to ammoniated mercury, thimerosal, and the herb ointment. Energy-dispersive X-ray microanalysis of the herb ointment showed a striking peak for mercury.
Dermatitis, Contact*
;
Electron Probe Microanalysis
;
Female
;
Humans
;
Neck
;
Patch Tests
;
Strikes, Employee
;
Thimerosal
;
Young Adult
6.Inhibitory of γ-aminobutyric acid on the contractility of isolated rat vas deferens.
Ki Young AHN ; Oh Cheol KWON ; Jeoung Hee HA ; Kwang Youn LEE ; Won Joon KIM
Yeungnam University Journal of Medicine 1992;9(2):382-395
GABA is an inhibitory neurotransmitter in central nervous system and produce sedative, antianxiety and muscle relaxing effects via GABA(A) receptor or GABA(B) receptor. Recently it is known that GABA is widely distributed throughout peripheral organs and may play a physiological role in certain organ. The vas deferens is innervated by species-difference. These study, therefore, was performed to investigate the mode and the mechanism of action of GABA on the norepinephrine-, ATP- and electric stimulation-induced contraction of vas deferens of rat. Sprague-Dawley rats were sacrificed by cervical dislocation. The smooth muscle strips were isolated from the prostatic portion and were mounted in the isolated muscle bath. PSS in the bath was aerated with 95/5%-O₂/CO₂ at 33℃. Muscle tensions were measured by isometric tension transducer and were recorded by biological recording system. 1. GABA, muscimol, a GABA(A) agonist, and baclofen, a GABA(B) agonist inhibited the electric field stimulation (EFS, 0.2Hz, 1mSec, 80V, monophasic square wave)-induced contraction with a rank order of potency of GABA greater than baclofen greater than muscimol. 2. The inhibitory effect of GABA was antagonized by delta aminovaleric acid (DAVA), a GABA(B) antagonist, but not by bicuculline, a GABA(A) intagonist. 3. The inhibitory effect of baclofen was antagonized by DAVA, but the effect of muscimol was not antagonized by bicuculline. 4. Exogenous norepinephrine (NE) and ATP contracted muscle strip concentration dependently, but the effect of acetylcholine was negligible and GABA did not affect the NE-and ATP-induced contractions. 5. GABA, baclofen and muscimol did not affect basal tone, and GABA did not affect the NE-and ATP-induced contractions. 6. EFS-induced contraction was inclucling 2 distinctable components. The first phasic component was inhibited by beta gamma-methylene ATP (mATP), a desensitizing agent of APT receptor and the second tonic component was reduced by pretreatment of reserpine (3 mg/Kg, IP). 7. GABA inhibited the EFS-induced contraction of reserpinized strips, but not the mATP-treated strips. These results suggest that in the prostatic portion of the rat vas deferens, adrenergic and purinergic neurotransmissions are exist, and GABA inhibits the release of ATP via presynaptic GABA(B) receptor on the excitatory neurons.
Acetylcholine
;
Adenosine Triphosphate
;
Animals
;
Baclofen
;
Baths
;
Bicuculline
;
Central Nervous System
;
Dislocations
;
gamma-Aminobutyric Acid
;
Muscimol
;
Muscle, Smooth
;
Neurons
;
Neurotransmitter Agents
;
Norepinephrine
;
Rats*
;
Rats, Sprague-Dawley
;
Receptors, GABA-A
;
Reserpine
;
Transducers
;
Vas Deferens*
7.A Case of Angiosarcoma of the Scalp.
Hee Jin CHO ; Hwan Gyo CHUNG ; Kyu Joong AHN ; Cheol Heon LEE ; Chong Ju LEE
Korean Journal of Dermatology 1988;26(2):274-276
Angiosarcoma is a rare malignant vascular tumor of endothelial cell origin. Most lesions of cutaneous angiosarcoma occur over the face and scalp. We experienced a case of angiosarcoma of the scalp in a 63-year-old man. Multiple pea-sized erythematous papules and nodules developed on the forehead 6 months ago. Thereafter, the lesions have extended to make violaceous, compressible and hemorrhagic plaques. On histologic examination, there were irregular, often anastomosing vascular channels lined by the atypical endothelial cells in the dermis.
Dermis
;
Endothelial Cells
;
Forehead
;
Hemangiosarcoma*
;
Humans
;
Middle Aged
;
Scalp*
8.Five cases of squamous cell carcinoma in external auditory canal.
Cheol Min AHN ; Young Hoon CHUN ; Duk Hee CHUNG ; Jong Ouck CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(4):500-504
No abstract available.
Carcinoma, Squamous Cell*
;
Ear Canal*
9.TOTALLY BIODEGRADABLE CRANIOFACIAL SKELETAL FIXATION SYSTEM USING BIODEGRADABLE PLATE AND CYANOACRYLATE ADHESIVE.
Jeong Cheol KIM ; Duck Kyoon AHN ; Hee Chang AHN ; Ing Gon KIM ; Hee Youn CHOI ; Ki Il UHM ; Jai Mann LEW
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(6):1253-1260
No abstract available.
Adhesives*
;
Cyanoacrylates*
;
Fracture Fixation*
10.A case of agenesis of the right lung.
Hyun Soon LEE ; Gyeong Cheol YOON ; Se Wook OH ; Ho Seek AHN ; Sung Won KIM ; Chung Hee CHI
Journal of the Korean Pediatric Society 1992;35(2):240-244
No abstract available.
Lung*