1.Improvement of Metabolic Syndrom by Alpha-lipoic Acid.
Eun Hee KOH ; Woo Je LEE ; Min Seon KIM ; Joong Yeol PARK ; Ki Up LEE
Journal of Korean Society of Endocrinology 2004;19(3):267-273
No abstract available.
Thioctic Acid*
2.Two Cases of Transient Neonatal Diabetes Mellitus in Twin Brothers.
Jin Hyung CHO ; Eon Woo SHIN ; Seung YANG ; Eun Young PARK ; Kwang Nam KIM ; Dae Yeol LEE ; Phil Soo OH
Journal of Korean Society of Pediatric Endocrinology 2004;9(2):204-207
Neonatal diabetes mellitus (NDM) is defined as hyperglycemia that presents clinical symptoms within the first month of life and requires insulin therapy to maintain euglycemia. The diabetic condition may be transient, permanent, or transient with recurrence later in life. NDM is a rare clinical disorder. Three cases of NDM have been reported in Korea so far. We experienced two cases of NDM in twin brothers who were born with small for gestational ages. Their HLA typings were DR9 and DR14, and insulin autoantibody, islet cell antibody, GAD-reactive autoantibody, and insulin receptor antibody were not found. The genetic analysis with polymorphic DNA markers for chromosome 6 indicated paternal uniparental isodisomy.
Chromosomes, Human, Pair 6
;
Diabetes Mellitus*
;
Genetic Markers
;
Gestational Age
;
Histocompatibility Testing
;
Humans
;
Hyperglycemia
;
Insulin
;
Islets of Langerhans
;
Korea
;
Receptor, Insulin
;
Recurrence
;
Siblings*
;
Twins*
;
Uniparental Disomy
3.Learning Curve of the Direct Anterior Approach for Hip Arthroplasty
Dong Hun HAM ; Woo Chull CHUNG ; Byeong Yeol CHOI ; Jong Eun CHOI
The Journal of the Korean Orthopaedic Association 2020;55(2):143-153
Purpose:
To evaluate the timing of the improvement in surgical skills of the direct anterior approach for hip arthroplasty through an analysis of the clinical features and learning curve in 58 cases.
Materials and Methods:
From November 2016 to November 2018, 58 patients, who were divided into an early half and late half, and underwent hip arthroplasty by the direct anterior approach, were enrolled in this retrospective study. The operation time and complications (fracture, lateral femoral cutaneous nerve injury, heterotopic ossification, infection, and dislocation) were assessed using a chi-square test, paired t-test, and cumulative sum (CUSUM) test.
Results:
The mean operation times in total hip arthroplasty (26 cases) and bipolar hemi-arthroplasty were 132.1 minutes and 79.7 minutes, respectively, demonstrating a significant difference between the two groups. CUSUM analysis based on the results revealed breakthrough points of the operation time, decreasing to less than the mean operation time because of the 16th case in total hip arthroplasty and 14th case in bipolar hemiarthroplasty. Complications were encountered in the early phase and late phase: five cases of fractures in the early phase, no case in the late phase; eight and two cases of lateral femoral cutaneous nerve injury, respectively; three and two cases of heterotopic ossification, respectively; and one case of dislocation, one case of infection and three cases of others in the early phase. The CUSUM chart for the fracture rate during operation in the early phase revealed the following: five cases fracture (17.2%) in the early phase and no case in the late phase (0%). This highlights the learning curve and the need for monitoring the inadequacy of operation based on the complications.
Conclusion
Hip arthroplasty performed by the direct anterior approach based on an anatomical understanding makes it difficult to observe the surgical field and requires a learning curve of at least 30 cases.
4.Patient-Reported Outcome Measures of Staged Direct Anterior Approach and Direct Lateral Approach for Total Hip Arthroplasty Performed on the Same Patient
Byeong Yeol CHOI ; Woo Chull CHUNG ; Se Jin KIM ; Eun Ho CHOI
The Journal of the Korean Orthopaedic Association 2025;60(1):22-29
Purpose:
Total hip arthroplasty (THA) is performed using various approaches, including posterior, lateral, and direct anterior approaches.The most beneficial method is controversial. Each approach has its advantages and disadvantages. This study compared patient satisfaction after bilateral THA using the direct anterior and lateral approaches on the same patient, considering the advantages and disadvantages of each approach.
Materials and Methods:
This study examined 30 patients who underwent bilateral THA: two with femoral neck fractures, 18 with osteonecrosis of the femoral head, six with borderline dysplasia-induced hip osteoarthritis, and four with degenerative hip osteoarthritis.Without distinguishing between the left and right sides, THA was performed randomly using the direct anterior approach on one side and the lateral approach on the other. The results of THA were compared using different approaches on the same patient, and patient satisfaction was evaluated.
Results:
Surgery using the direct anterior approach for THA showed favorable results in terms of the initial postoperative pain compared to surgery using the lateral approach. On the other hand, there was no significant difference observed after one month post-surgery. Among the participants, three preferred the direct anterior approach; four preferred the lateral approach, and 23 reported no preference.
Conclusion
In THA, the direct anterior approach may offer advantages in terms of initial postoperative pain and rehabilitation compared to the lateral approach. Nevertheless, the pain and joint function one month after surgery were similar between the two approaches.Therefore, the choice of approach should be determined by the surgeon's preference or experience, as both methods appear rational.
5.Patient-Reported Outcome Measures of Staged Direct Anterior Approach and Direct Lateral Approach for Total Hip Arthroplasty Performed on the Same Patient
Byeong Yeol CHOI ; Woo Chull CHUNG ; Se Jin KIM ; Eun Ho CHOI
The Journal of the Korean Orthopaedic Association 2025;60(1):22-29
Purpose:
Total hip arthroplasty (THA) is performed using various approaches, including posterior, lateral, and direct anterior approaches.The most beneficial method is controversial. Each approach has its advantages and disadvantages. This study compared patient satisfaction after bilateral THA using the direct anterior and lateral approaches on the same patient, considering the advantages and disadvantages of each approach.
Materials and Methods:
This study examined 30 patients who underwent bilateral THA: two with femoral neck fractures, 18 with osteonecrosis of the femoral head, six with borderline dysplasia-induced hip osteoarthritis, and four with degenerative hip osteoarthritis.Without distinguishing between the left and right sides, THA was performed randomly using the direct anterior approach on one side and the lateral approach on the other. The results of THA were compared using different approaches on the same patient, and patient satisfaction was evaluated.
Results:
Surgery using the direct anterior approach for THA showed favorable results in terms of the initial postoperative pain compared to surgery using the lateral approach. On the other hand, there was no significant difference observed after one month post-surgery. Among the participants, three preferred the direct anterior approach; four preferred the lateral approach, and 23 reported no preference.
Conclusion
In THA, the direct anterior approach may offer advantages in terms of initial postoperative pain and rehabilitation compared to the lateral approach. Nevertheless, the pain and joint function one month after surgery were similar between the two approaches.Therefore, the choice of approach should be determined by the surgeon's preference or experience, as both methods appear rational.
6.Patient-Reported Outcome Measures of Staged Direct Anterior Approach and Direct Lateral Approach for Total Hip Arthroplasty Performed on the Same Patient
Byeong Yeol CHOI ; Woo Chull CHUNG ; Se Jin KIM ; Eun Ho CHOI
The Journal of the Korean Orthopaedic Association 2025;60(1):22-29
Purpose:
Total hip arthroplasty (THA) is performed using various approaches, including posterior, lateral, and direct anterior approaches.The most beneficial method is controversial. Each approach has its advantages and disadvantages. This study compared patient satisfaction after bilateral THA using the direct anterior and lateral approaches on the same patient, considering the advantages and disadvantages of each approach.
Materials and Methods:
This study examined 30 patients who underwent bilateral THA: two with femoral neck fractures, 18 with osteonecrosis of the femoral head, six with borderline dysplasia-induced hip osteoarthritis, and four with degenerative hip osteoarthritis.Without distinguishing between the left and right sides, THA was performed randomly using the direct anterior approach on one side and the lateral approach on the other. The results of THA were compared using different approaches on the same patient, and patient satisfaction was evaluated.
Results:
Surgery using the direct anterior approach for THA showed favorable results in terms of the initial postoperative pain compared to surgery using the lateral approach. On the other hand, there was no significant difference observed after one month post-surgery. Among the participants, three preferred the direct anterior approach; four preferred the lateral approach, and 23 reported no preference.
Conclusion
In THA, the direct anterior approach may offer advantages in terms of initial postoperative pain and rehabilitation compared to the lateral approach. Nevertheless, the pain and joint function one month after surgery were similar between the two approaches.Therefore, the choice of approach should be determined by the surgeon's preference or experience, as both methods appear rational.
7.Totally Laparoscopic Distal Gastrectomy in Post Liver Transplant Patient
Eun Young PARK ; Dong Jin PARK ; Hyung Woo PARK ; Chang Woo NAM ; Yang Won NAH ; Gyu Yeol KIM
Journal of Minimally Invasive Surgery 2019;22(1):39-42
The risk of malignancy after transplantation is higher than that of general population. Laparoscopic surgery has become a standard treatment of gastric cancer. However, there are no case reports evaluating totally laparoscopic gastrectomy in patients with previous liver transplantation. Herein we report our experience with a liver transplant recipient who underwent totally laparoscopic distal gastrectomy (TLDG) for gastric cancer. A 63 year-old man underwent orthotopic liver transplantation (OLT) for cryptogenic liver cirrhosis. 8 years later, gastric cancer was diagnosed during the follow-up. Endoscopic submucosal dissection was performed and additional surgical resection was needed. TLDG and D1+ lymph node dissection was performed, and the patient was discharged on the 8th post-operative day without any complications. To the best of our knowledge, this is the first case of de novo gastric cancer treated with TLDG after OLT. This suggests that TLDG is a feasible for patients after OLT.
Follow-Up Studies
;
Gastrectomy
;
Humans
;
Laparoscopy
;
Liver Cirrhosis
;
Liver Transplantation
;
Liver
;
Lymph Node Excision
;
Stomach Neoplasms
;
Transplant Recipients
8.Effects of Platelet-Rich Plasma, Adipose-Derived Stem Cells, and Stromal Vascular Fraction on the Survival of Human Transplanted Adipose Tissue.
Deok Yeol KIM ; Yi Hwa JI ; Deok Woo KIM ; Eun Sang DHONG ; Eul Sik YOON
Journal of Korean Medical Science 2014;29(Suppl 3):S193-S200
Traditional adipose tissue transplantation has unpredictable viability and poor absorption rates. Recent studies have reported that treatment with platelet-rich plasma (PRP), adipose-derived stem cells (ASCs), and stromal vascular fraction (SVF) are related to increased survival of grafted adipose tissue. This study was the first simultaneous comparison of graft survival in combination with PRP, ASCs, and SVF. Adipose tissues were mixed with each other, injected subcutaneously into the back of nude mice, and evaluated at 4, 8, and 12 weeks. Human adipocytes were grossly maintained in the ASCs and SVF mixtures. Survival of the adipose tissues with PRP was observed at 4 weeks and with SVF at 8 and 12 weeks. At 12 weeks, volume reduction in the ASCs and SVF mixtures were 36.9% and 32.1%, respectively, which were significantly different from that of the control group without adjuvant treatment, 51.0%. Neovascular structures were rarely observed in any of the groups. Our results suggest that the technique of adding ASCs or SVF to transplanted adipose tissue might be more effective than the conventional grafting method. An autologous adipose tissue graft in combination with ASCs or SVF may potentially contribute to stabilization of engraftment.
Adipocytes/*transplantation
;
Adipose Tissue/cytology/*transplantation
;
Adult
;
Animals
;
Female
;
*Graft Survival
;
Humans
;
Mice
;
Mice, Inbred BALB C
;
Mice, Nude
;
*Platelet-Rich Plasma
;
Stem Cells
;
Stromal Cells/*transplantation
;
Transplantation, Heterologous
9.Changes of Ionic Flow through the Internal Limiting Membrane during the Visual Adaptation of Vertebrate Eye.
Hyun Jung KIM ; Suk Hyang WOO ; You Young KIM ; Hyuk JUNG ; Si Yeol KIM ; Eun Hwi PARK
Journal of the Korean Ophthalmological Society 2000;41(7):1479-1492
It already has been known that various ions were participated in phototransduction mechanism of the vertebrate photoreceptor during the visual adaptation. The vitreous humor(VH)contains certain amount of Na+, K+ and Ca++ as well. However, the roles of these ions are unknown except functioning of metabolic process. Our preliminary electroretinogram(ERG) experiments suggested that the permeability of these ions has light dependent activity during the light illumination. We have supported this suggestion more tangibly by trying out various experiments with bullfrog eyes as a reference of visual adaptation. The results are summarized as follows: 1)According to our atomic absorption spectroscopic measurements, the concentration of Na+, K+ and Ca++ in light adapted VH was higher than that of dark adapted VH. This result indicated that the light-dependention transport systems which affect the ionic movements might be in internal limiting membrane(ILM). 2)The amplitude of ERG b-wave was reduced by concentration decrement of Na+ and concentration increment of K+ respectively. On the other hand, the elimination of Ca++ within ringer solution resulted in b-wave amplitude increment. 3)Treatment of Na+ hannel blockers(TTX, STX)and K+ channel blockers(Ba++, Cd++, Cs+, 4-AP and TEA)in the vitreous humor side induced the increment and the decrement of b-wave response respectively. Taken together, these results suggest that the light dependent Na+ K+ channels exist in the ILM of vertebrate retina which participates visual adaptation.
Absorption
;
Hand
;
Ions
;
Light Signal Transduction
;
Lighting
;
Membranes*
;
Metabolism
;
Permeability
;
Photoreceptor Cells, Vertebrate
;
Rana catesbeiana
;
Retina
;
Vertebrates*
;
Vitreous Body
10.A Case of Neuroleptic Malignant Syndrome associated with Choreoballism due to the Delayed Complication of Carbon Monoxide Intoxication.
Jong Yeol KIM ; Ji Eun KIM ; Bo Woo JUNG ; Chung Kyu SUH
Journal of the Korean Neurological Association 1994;12(3):556-559
Neurologic complications such as mental status changes, incontinence, gait disturbances, extrapyramidal symptoms may be delayed days or weeks after exposure to carbon monoxide but hyperkinesia such as choreoballism and athetosis rarely occurs as symptoms of delayed neurologic complication of carbon monoxide intoxication. Neuroleptic malignant syandrome (NMS) is a rare, potentially fatal drug-induced disorder associated with hyperthermia, muscle rigidity, autonomic instability, mental dysfunction and various dyskinesia. Various major neuroleptic drugs seem to be its culprits. We describe a 24-year-old female patient who presented with NMS following administration of haloperidol for choreoballism, a symptom of delayed neurologic sequelas after carbon monoxide intoxication, with a review of the literature.
Antipsychotic Agents
;
Athetosis
;
Carbon Monoxide*
;
Carbon*
;
Dyskinesias
;
Female
;
Fever
;
Gait
;
Haloperidol
;
Humans
;
Hyperkinesis
;
Muscle Rigidity
;
Neuroleptic Malignant Syndrome*
;
Young Adult