1.Hypopigmentation Occurred After Er: YAG Laser Resurfacing.
Eul Sang HWANG ; Sang Hyuk WOO ; Hwan Tae SUNG ; Soo Nam KIM ; Young Chul KYE
Korean Journal of Dermatology 2004;42(7):833-838
BACKGROUND: Hypopigmentation is one of the complications developed after laser resurfacing. There have been few data about hypopigmentation developed after Er: YAG laser resurfacing, especially in darker skin. OBJECTIVE: The objective of this study was to assess the clinical and histopathologic features of hypopigmentation developed after Er: YAG laser resurfacing. METHODS: One hundred and ninety patients have been included in this study. Ninety seven patients were treated with short pulsed Er: YAG laser, 2mm spot sized handpiece at the setting of 12.5-15.0J/cm2. Fifty two patients were treated with variable pulsed Er: YAG laser, 5mm spot sized handpiece at the setting of 7.0-7.5J/cm2 and 7msec pulse duration. Forty one patients were treated with dual mode Er: YAG laser, 4mm spot sized scanner at the setting of 17.5J/cm2 ablation mode and 3.15J/cm2 coagulation mode. Incidence, time of onset, duration of hypopigmentation were evaluated throughout the medical charts and serially checked photographs. Skin biopsy was performed in four patients at the hypopigmentation site for histopathologic and electron microscopic examinations with informed consents. RESULTS: Hypopigmentation was observed in twenty six patients; eight in short pulsed Er: YAG laser, eight in variable pulsed Er: YAG laser, ten in dual mode Er: YAG laser. According to the time of onset of hypopigmentation, twelve patients developed hypopigmentation within one month, five patients in two months, three patients within three months, three patients within four months, two patients within five months, and one patient within six months. Twenty out of twenty six patients recovered skin coloration within six months, and two patients within twelve months. On the other hand, four patients had persisted hypopigmentation for more than one year. Melanosome appeared to be decreased but melanocytes appeared to be present in normal numbers on the histopathologic and electron microscopic examinations. CONCLUSION: Although hypopigmentation is one of the frequent complicaions of Er: YAG laser resurfacing, it is temporary in most cases. Thermal damage due to long pulse duration of laser seems to be a very important factor in inducing hypopigmentation.
Incidence
;
Biopsy
2.Infant with Fanconi Anemia Presenting with Myelodysplastic Syndrome.
Tae Hyung CHO ; Hoon KOOK ; Na Eun RYU ; Chang Jong KIM ; Jae Hyuk LEE ; Tai Ju HWANG
Korean Journal of Pediatric Hematology-Oncology 1998;5(2):322-327
PURPOSE: Fanconi anemia(FA) is a rare autosomal recessive disorder characterized by progressive bone marrow failure and congenital malformations. Patients with FA have aplastic anemia(> 90%), leukemia(10~15%), myelodysplasia(5%) and liver(5%) and other tumors(5%). In the International FA Registry study myelodysplasia in FA patients was detected at a median of 13 years. Presentation of FA with myelodysplasia in an infant should be extremely rare. CASE: A 3-month-old infant presented with anemia and poor feeding. The initial hemogram showed: hemoglobin, 4.6 g/dL; MCV, 104.1 fL/pg; white cell count, 4,300/microL; neutrophils, 450/microL; platelets, 23,000/microL. The bone marrow was normocellular, with findings of macrocytic anemia and dyserythropoiesis, and less than 5% of myeloid blasts, compatible with myelodysplastic syndrome(refractory anemia). The patient had multiple cafe-au-lait spots, hypopigmented nevi, broad nasal bridge, micrognathia, and thumb and toe anomalies. FA was confirmed by chromosomal hypersensitivity to diepoxybutane and mitomicin C. Supportive treatment with oxymetholone and prednisolone failed to improve hematologic and clinical findings. The patient succumbed to sepsis, pneumonia and meningitis due to Pseudomonas aeruginosa at 20 month of age. Clonal cytogenetic anomalies were not found. CONCLUSION: We reported here a rare case of FA presenting with myelodysplasia at the age of 3 month.
Anemia
;
Anemia, Macrocytic
;
Bone Marrow
;
Cafe-au-Lait Spots
;
Cell Count
;
Cytogenetics
;
Fanconi Anemia*
;
Humans
;
Hypersensitivity
;
Infant*
;
Meningitis
;
Myelodysplastic Syndromes*
;
Neutrophils
;
Nevus
;
Oxymetholone
;
Pneumonia
;
Prednisolone
;
Pseudomonas aeruginosa
;
Sepsis
;
Thumb
;
Toes
3.Adenocarcinoma of the uterine cervix: clinical and histologic variables.
Kyo Sik SHIN ; Jae Hyuk YANG ; Dae Jin KAHANG ; Sam Hyun CHO ; Kyung Tae KIM ; Yoon Young HWANG ; Hyung MOON ; Doo Sang KIM
Korean Journal of Obstetrics and Gynecology 1991;34(10):1434-1442
No abstract available.
Adenocarcinoma*
;
Cervix Uteri*
;
Female
4.Insufficiency Fracture of the Femoral Neck after Intramedullary Nailing for the Treatment of Atypical Femoral Fracture - A Case Report -.
Nam Hoon MOON ; Jae Hoon JANG ; Tae Hyuk HWANG ; Ki Young PARK
Journal of the Korean Fracture Society 2016;29(4):258-264
Although several publications have reported delayed or non-union, there is a consensus that the standard treatment for atypical femoral fracture (AFF) is an intramedullary nailing. However, no case of tensile insufficiency fracture of femoral neck associated with intramedullary nailing in patients with AFF have been reported. Here, we report an 82-year-old woman with tensile type of insufficiency fracture of the femoral neck after intramedullary nailing for the treatment of AFF.
Aged, 80 and over
;
Consensus
;
Female
;
Femoral Fractures*
;
Femur Neck*
;
Fracture Fixation, Intramedullary*
;
Fractures, Stress*
;
Humans
;
Osteoporosis
5.The Mental Health and Sleep Quality of the Medical Staff at a Hub-Hospital against COVID-19 in South Korea
Doo Hyuk KWON ; Jihye HWANG ; Yong Won CHO ; Mei Ling SONG ; Keun Tae KIM
Journal of Sleep Medicine 2020;17(1):93-97
Objectives:
Now, coronavirus disease (COVID-19) is worldwide threatening. Medical staff’s efforts and sacrifices against COVID-19 are still ongoing. The purpose of this study was to investigate the mental health of the medical staff who have fought against the COVID-19 in hub hospitals.
Methods:
The medical staff underwent an evaluation of psychiatric and sleep status between March 23rd and April 3rd, 2020. Based on the evaluation, we retrospectively analyzed depression, anxiety, and sleep quality of the medical staff, who worked more than 7 days for fighting against the COVID-19.
Results:
This study included a total of 101 medical staff. Approximately 1/4 of the medical staff showed depressive mood and low quality of sleep, and more than 1/3 reported anxiety. The nurses reported more severe psychiatric symptoms and poorer sleep quality.
Conclusions
This study demonstrated the mental and sleep status of the medical staff against COVID-19. Medical and social support should be considered for them.
6.Hyperintense Acute Reperfusion Marker on FLAIR in Patient with Possible Contrast-Induced Encephalopathy Following Cerebral Angiography
Jungwon HWANG ; Keonyeup KIM ; Tae Young YEO ; Dae Hyuk YIM ; Jin-Man JUNG
Journal of the Korean Neurological Association 2020;38(4):301-304
Contrast-induced encephalopathy (CIE) is a rare complication of angiography and endovascular intervention following administration of iodinated intravenous contrast agents. Neuroimaging findings of CIE usually show cerebral edema, leptomeningeal enhancement, and parenchymal signal abnormality on fluid-attenuated inverse recovery (FLAIR). Hyperintense acute reperfusion marker (HARM) generally implies an enhancement of the subarachnoid cerebrospinal fluid space on brain FLAIR imaging in cases of acute ischemic stroke or hyperperfusion syndrome. We report a case of possible CIE following cerebral angiography, accompanied by HARM sign.
7.Comparison of a Cryopneumatic Compression Device and Ice Packs for Cryotherapy Following Anterior Cruciate Ligament Reconstruction
Jae-Hyuk YANG ; Kyu-Tae HWANG ; Myoung Keun LEE ; Sungsin JO ; Eunil CHO ; Jin Kyu LEE
Clinics in Orthopedic Surgery 2023;15(2):234-240
Background:
The purpose of the current study was to evaluate and compare the effectiveness of a cryopneumatic compression device with that of standard ice packs following arthroscopic anterior cruciate ligament (ACL) reconstruction, with a primary focus on early postoperative pain.
Methods:
Participants were divided into two groups: cryopneumatic compression device group (CC group) and standard ice pack group (IP group). Patients in the CC Group (28 patients) received a cryopneumatic compression device (CTC-7, Daesung Maref) treatment, while patients in the IP group (28 patients) received standard ice pack cryotherapy postoperatively. All cryotherapy was applied three times (every 8 hours) per day for 20 minutes until discharge (postoperative day 7). Pain scores were assessed preoperatively and at 4, 7, and 14 days after surgery, and the primary outcome for analysis was pain at postoperative day 4 assessed using a visual analog scale (VAS). Other variables were opioid and rescue medication use, knee and thigh circumferences, postoperative drainage, and joint effusion quantified by a three-dimensional magnetic resonance imaging (MRI) reconstruction model.
Results:
The mean pain VAS score and difference in VAS relative to the preoperative measurements for postoperative day 4 were significantly lower in the CC group than in the IP group (p = 0.001 and p = 0.007, respectively). The sum of postoperative drainage and effusion quantified by MRI showed a significant reduction of postoperative effusion in the CC group compared to the IP group (p = 0.015). The average total rescue medication consumption was comparable between the two groups. Circumferential measurements at days 7 and 14 postoperatively relative to those at day 4 (index day) demonstrated no significant differences between the groups.
Conclusions
Compared to standard ice packs, application of cryopneumatic compression was associated with a significant reduction in VAS pain scores and joint effusion during the early postoperative period following ACL reconstruction.
8.Downregulation of the RUNX3 Gene by Promoter Hypermethylation and Hemizygous Deletion in Breast Cancer.
Ki Tae HWANG ; Wonshik HAN ; Ji Yeon BAE ; Sung Eun HWANG ; Hyuk Jai SHIN ; Jeong Eon LEE ; Sung Won KIM ; Hyun Jung MIN ; Dong Young NOH
Journal of Korean Medical Science 2007;22(Suppl):S24-S31
The RUNX3 gene is regarded as a tumor suppressor gene in many human solid tumors, and its inactivation is believed to be related with solid tumor carcinogenesis. As little information is available about the role of the RUNX3 gene in breast cancer, we investigated the relationship between the RUNX3 gene and breast cancer. We performed reverse transcriptase-polymerases chain reaction (RT-PCR), methylation specific PCR, and bicolor fluorescent in situ hybridization analysis in an effort to reveal related mechanisms. Forty breast tissue samples and 13 cell lines were used in this study. Eighty-five percent of breast cancer tissues showed downregulated RUNX3 gene expression, whereas it was downregulated in only 25% of normal breast tissues by RT-PCR assay. Sixty-seven percent of breast cancer cell lines showed downregulated RUNX3 expression, but the RUNX3 gene was not expressed in two normal breast cell lines. Hypermethylation was observed in 53% of breast cancer tissues and 57% of breast cancer cell lines. Hemizygous deletion was observed in 43% of breast cancer cell lines. Hypermethylation and/or hemizygous deletion was observed in 5 of 7 breast cancer cell lines, and the four of these five examined showed no RUNX3 gene expression. We suggest that various mechanisms, including methylation and hemizygous deletion, could contribute to RUNX3 gene inactivation.
Base Sequence
;
Breast Neoplasms/*genetics
;
Carcinoma, Ductal, Breast/*genetics
;
Case-Control Studies
;
Cell Line, Tumor
;
Core Binding Factor Alpha 3 Subunit/*genetics
;
DNA Methylation
;
DNA, Neoplasm/genetics
;
Down-Regulation
;
Female
;
Gene Deletion
;
Humans
;
In Situ Hybridization, Fluorescence
;
Promoter Regions, Genetic
;
Reverse Transcriptase Polymerase Chain Reaction
9.A Case of Cerebral Thromboembolism Occurred after Restoration to Sinus Rhythm of Paroxysmal Atrial Flutter in Apical Hypertropic Cardiomyopathy with Spontaneous Echo Contrast(SEC).
Ki Hyun CHOI ; Sang Wook LIM ; Jae Hyuk CHOI ; Jae Wuk OK ; Kyung Hwa HWANG ; Tae Yong KIM ; Yoon Kyung CHO ; Jong Hyun HWANG ; Dong Hoon CHA
Korean Circulation Journal 2001;31(9):945-948
Atrial flutter occurs most often in patients with organic heart disease. It appears that chronic atrial flutter is associated with a remarkably high risk of clinically apparent thromboembolism and effective anticoagulation appears to reduce this risk, but acute or recent onset, postoperative atrial flutter may have a lower risk of thromboembolism than those with chronic atrial flutter. In chronic atrial flutter or fibrillation with organic heart disease, anticoagulation is generally justified but there is some debate about anticoagulation in paroxysmal atrial flutter. The spontaneous echo contrast is generally accepted one of the major risk factor of thromboembolism and usually occurred in mitral stenosis, dilated cardiomyopathy, and enlarged left atrium, but rarely observed in apical hypertrophic cardiomyopathy. We experienced a patient with apical hypertrophic cardiomyopathy, who visited to emergency medical center due to dizziness and suffered from cerebral thromboembolism after restoration of sinus rhythm. In transesophageal echocardiography, there was moderate to severe spontaneous echo contrast in left atrium. This patient showed that transesophageal echocardiography evaluation of left atrium might be mandatory in patients with paroxysmal atrial flutter and organic heart disease.
Atrial Flutter*
;
Cardiomyopathies*
;
Cardiomyopathy, Dilated
;
Cardiomyopathy, Hypertrophic
;
Dizziness
;
Echocardiography, Transesophageal
;
Emergencies
;
Heart Atria
;
Heart Diseases
;
Humans
;
Mitral Valve Stenosis
;
Risk Factors
;
Thromboembolism*
10.A case of Breast Gigantism in a Patient with Wilson's Disease treated by Penicillamine.
Jeong Eon LEE ; Hyuk Jai SHIN ; Sung Eun HWANG ; Ki Tae HWANG ; Seung Keun OH ; Yeo Kyu YOUN ; Dong Young NOH ; Sung Won KIM ; Wonshik HAN
Journal of Breast Cancer 2006;9(1):69-72
We report a case of breast gigantism in a patient with Wilson's disease treated with penicillamine. A 19-year-old female with alleged Wilson's disease visited our hospital due to diffuse enlargement of both breasts. She had been treated with penicillamine 1,000 mg/day since her age of 15 after diagnosis of Wilson's disease. At the initial presentation, there were diffuse skin thickenings in both lower inner breasts and huge lesion which replaced almost all the breast parenchyma. After gun biopsy and excision for tissue diagnosis, fibroadenoma with ductal epithelial hyperplasia was diagnosed. Although daily dose of penicillamine was lowed to 500 mg/day, her symptom progressed. After 1 year of follow up, she and her parents strongly wanted to remove her breasts because of distorted body shape and weight of breasts. The patients underwent subcutaneous mastectomy with the designed incision of the reduction mammoplasty for the future mammoplasty. Although the breast gigantism is a rare side effect of penicillamine, female patients should be followed up cautiously for the possible change of breasts. Because penicillamine is no more the first choice for Wilson's disease, it would be better to avoid using penicillamine for Wilson's disease patients especially for the young females.
Biopsy
;
Breast*
;
Diagnosis
;
Female
;
Fibroadenoma
;
Follow-Up Studies
;
Gigantism*
;
Hepatolenticular Degeneration*
;
Humans
;
Hyperplasia
;
Mammaplasty
;
Mastectomy, Subcutaneous
;
Parents
;
Penicillamine*
;
Skin
;
Young Adult