1.Arthroscopic Meniscus Repair: A Short Term Result.
Hyoun Oh CHO ; Kyoung Duck KWAK ; Sung Do CHO ; Woo Keun JEONG
Journal of the Korean Knee Society 1997;9(2):215-219
The function of the meniscus and subsequently the importance of meniscus preservation are well known. Thirty-two patients who underwent arthroscopic meniscus repair between 1993 and 1995 were studied retrospectively. Twenty menisci were repaired using modified Henning inside-out technique and the remaining twelve meaisci, outside-in technique. The average delay in surgery was two hundred days. Follow-up was done from 1 year to 3 years (average 22.4 months). The medial meniscus was repaired in 22 cases and the lateral meniscus including two saucerized discoid meniscus in 10 cases. Fourteen patients had anterior cruciate ligament (ACL) tear and other associated knee injuries were lateral condyle fra'cture of femur in one case and lateral condyle &acture of tibia in one case. Assessment of the result was based on the evaluation form of the International Knee Documentation CommitteegKDC). Twenty-seven patients (84.3%) were normal to nearly normal. Abnormal and severely abnormal results were mainly affected by the result of treatment of ACL tear.
Anterior Cruciate Ligament
;
Femur
;
Follow-Up Studies
;
Humans
;
Knee
;
Knee Injuries
;
Menisci, Tibial
;
Retrospective Studies
;
Tibia
2.A Non-recurrent Laryngeal Nerve that was Unnoticed in a Preoperative Imaging Study: A Case Report.
Duck Hyoun JEONG ; Jin Cheol JEONG ; Jong Ho YOON
Korean Journal of Endocrine Surgery 2007;7(3):173-175
A non-recurrent laryngeal nerve is a rare nerve anomaly that is associated with a developmentally aberrant subclavian artery. During thyroidectomy,this aberrant nerve may become inadvertently damaged, causing permanent ipsilateral vocal cord paralysis. However, it is possible to predict the presence of a non-recurrent laryngeal nerve by preoperative diagnosis of an aberrant subclavian artery. We report a case of thyroid surgery associated with a right non-recurrent laryngeal nerve that was unnoticed preoperatively in a CT scan of the neck, but was encountered incidentally during the thyroidectomy. The preoperative CT scan showed a retroesophageal aberrant right subclavian artery, but it was unnoticed. The female patient underwent a total thyroidectomy with central compartment node dissection for a thyroid cancer. The recurrent laryngeal nerve on the left side was identified, as was the non-recurrent laryngeal nerve on the right side. Postoperatively, the patient had normal vocal cord function. It is possible to predict preoperatively a right non-recurrent laryngeal nerve by identifying an aberrant right subclavian artery on the CT scan of the neck, which likely enables prevention of vocal cord paralysis.
Diagnosis
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Female
;
Humans
;
Laryngeal Nerves*
;
Neck
;
Recurrent Laryngeal Nerve
;
Subclavian Artery
;
Thyroid Gland
;
Thyroid Neoplasms
;
Thyroidectomy
;
Tomography, X-Ray Computed
;
Vocal Cord Paralysis
;
Vocal Cords
3.Optimal timing of surgery after neoadjuvant chemoradiation therapy in locally advanced rectal cancer.
Duck Hyoun JEONG ; Han Beom LEE ; Hyuk HUR ; Byung Soh MIN ; Seung Hyuk BAIK ; Nam Kyu KIM
Journal of the Korean Surgical Society 2013;84(6):338-345
PURPOSE: The optimal time between neoadjuvant chemoradiotherapy (CRT) and surgery for rectal cancer has been debated. This study evaluated the influence of this interval on oncological outcomes. METHODS: We compared postoperative complications, pathological downstaging, disease recurrence, and survival in patients with locally advanced rectal cancer who underwent surgical resection <8 weeks (group A, n = 105) to those who had surgery > or =8 weeks (group B, n = 48) after neoadjuvant CRT. RESULTS: Of 153 patients, 117 (76.5%) were male and 36 (23.5%) were female. Mean age was 57.8 years (range, 28 to 79 years). There was no difference in the rate of sphincter preserving surgery between the two groups (group A, 82.7% vs. group B, 77.6%; P = 0.509). The longer interval group had decreased postoperative complications, although statistical significance was not reached (group A, 28.8% vs. group B, 14.3%; P = 0.068). A total of 111 (group A, 75 [71.4%] and group B, 36 [75%]) patients were downstaged and 26 (group A, 17 [16.2%] and group B, 9 [18%]) achieved pathological complete response (pCR). There was no significant difference in the pCR rate (P = 0.817). The longer interval group experienced significant improvement in the nodal (N) downstaging rate (group A, 46.7% vs. group B, 66.7%; P = 0.024). The local recurrence (P = 0.279), distant recurrence (P = 0.427), disease-free survival (P = 0.967), and overall survival (P = 0.825) rates were not significantly different. CONCLUSION: It is worth delaying surgical resection for 8 weeks or more after completion of CRT as it is safe and is associated with higher nodal downstaging rates.
Chemoradiotherapy
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Disease-Free Survival
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Female
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Humans
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Male
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Neoadjuvant Therapy
;
Polymerase Chain Reaction
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Postoperative Complications
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Preoperative Period
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Rectal Neoplasms
;
Recurrence
4.Safety and Feasibility of a Laparoscopic Colorectal Cancer Resection in Elderly Patients.
Duck Hyoun JEONG ; Hyuk HUR ; Byung Soh MIN ; Seung Hyuk BAIK ; Nam Kyu KIM
Annals of Coloproctology 2013;29(1):22-27
PURPOSE: The aim of this study is to assess the effects of age on the short-term outcomes of a laparoscopic resection of colorectal cancer in elderly (> or =75 years old), as compared with younger (<75 years old), patients. METHODS: A retrospective analysis of patients who underwent laparoscopic surgery for colorectal cancer between January 2007 and December 2009 was performed. There were two groups: age <75 years old (group A) and age > or =75 years old (group B). The perioperative outcomes between group A and group B were compared. RESULTS: The study included 824 patients in group A and 92 patients in group B. The body mass index (BMI) and the American Society of Anesthesiologists (ASA) score were significantly different between group B and group A (BMI: 22.5 vs. 23.5, P = 0.002; ASA score: 1.88 vs. 1.48, P = 0.001). Mean operating times were similar between the groups (325.4 minutes vs. 351.6 minutes, P = 0.07). We observed a higher overall complication rate in group B than in group A (12.0% vs. 6.2%, P = 0.047), but the number of severe complications of Accordion Severity Classification > or =3 (those that required an invasive procedure) was not significantly different between the two groups (6.5% vs. 3.4%, P = 0.142). There was no significant difference in the length of hospital stay (13.0 days vs. 12.0 days, P = 0.053). CONCLUSION: Although the elderly patients had a significantly higher overall postoperative complication rate, no significant difference was seen in either the number of severe complications of Accordion Severity Classification > or =3 or in the length of hospital stay. A laparoscopic colorectal cancer resection in elderly patients, especially those aged 75 years or older, is safe and feasible.
Aged
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Body Mass Index
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Colorectal Neoplasms
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Humans
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Laparoscopy
;
Length of Stay
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Postoperative Complications
;
Retrospective Studies
5.Microsatellite Instability in Invasive Ductal Carcinomas.
Duck Hyoun JEONG ; Jin Cheol JEONG ; Chan Heun PARK ; Mi Jung KWON ; Seong Jin CHO ; Eun Sook NAM ; Hyung Sik SHIN ; Kwan Seok KIM
Journal of Breast Cancer 2007;10(1):77-84
PURPOSE: Breast cancer shows various molecular and genetic alterations in its development and progression. Microsatellite alterations, and especially microsatellite instability (MSI) and loss of heterozygosity (LOH), have recently been postulated as a novel mechanism of carcinogenesis and as a useful prognostic factor for several gastrointestinal malignancies. LOH is related to the allelic loss of various tumor suppressor genes; however, MSI has been found to be the result of an erroneous DNA mismatch repair system and this has been known to be involved in the carcinogenesis of the hereditary non-polyposis colon cancers and some portion of the sporadic colorectal or gastric cancers. Yet MSI has rarely been studied in invasive ductal carcinoma. Our objectives were to evaluate the MSI and p53 protein expression in invasive ductal carcinomas and to correlate this with various clinicopathological factors. METHODS: The MSI analysis was performed by using polymerase chain reaction with five polymorphic microsatellite markers (the BAT25, BAT26, D2S123, D5S346 and D17S250 loci as recommended by the 1998 NCI International Workshop on Microsatellite Instabilitis and RER phenotypes) in 50 surgically resected tumors and each of their non-tumorous counterpart. The p53 protein expression was studied using immunohistochemistry. RESULTS: MSI and a p53 protein expression were detected in 22% and 54% of the tumors and non-tumorous tissues, respectively. MSI was more frequently detected in tumor grade I, T-stage I, non-metastatic tumor and tumor stage I. Also there were rare cases showing a high grade and stage with metastasis in the MSI-high group, in which more than 3 microsatellite loci had MSI. The p53 expression results correlated well with a higher tumor grade. Correlation between MSI and the p53 expression was not found. CONCLUSION: These results may suggest that MSI may be involved in some portions in mammary carcinogenesis and tumor invasion. Also the clinical use of the MSI status may help to determine a better prognosis among invasive ductal cancer patients.
Breast Neoplasms
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Carcinogenesis
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Carcinoma, Ductal*
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Colonic Neoplasms
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DNA Mismatch Repair
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Education
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Genes, Tumor Suppressor
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Humans
;
Immunohistochemistry
;
Loss of Heterozygosity
;
Microsatellite Instability*
;
Microsatellite Repeats*
;
Neoplasm Metastasis
;
Polymerase Chain Reaction
;
Prognosis
;
Stomach Neoplasms
6.Laparoscopic repair of parastomal and incisional hernias with a modified Sugarbaker technique.
Duck Hyoun JEONG ; Min Geun PARK ; George MELICH ; Hyuk HUR ; Byung Soh MIN ; Seung Hyuk BAIK ; Nam Kyu KIM
Journal of the Korean Surgical Society 2013;84(6):371-376
A parastomal hernia is the most common surgical complication following stoma formation. As the field of laparoscopic surgery advances, different laparoscopic approaches to repair of parastomal hernias have been developed. Recently, the Sugarbaker technique has been reported to have lower recurrence rates compared to keyhole techniques. As far as we know, the Sugarbaker technique has not yet been performed in Korea. We herein present a case report of perhaps the first laparoscopic parastomal hernia repair with a modified Sugarbaker technique to be successfully carried out in Korea. A 79-year-old woman, who underwent an abdominoperineal resection for an adenocarcinoma of the rectum 9 years ago, presented with a large parastomal and incisional hernias, and was treated with a laparoscopic repair with a modified Sugarbaker technique. Six months after surgery, follow-up with the patient has shown no evidence of recurrence.
Adenocarcinoma
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Female
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Follow-Up Studies
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Hernia
;
Hernia, Abdominal
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Herniorrhaphy
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Humans
;
Korea
;
Laparoscopy
;
Rectum
;
Recurrence
;
Surgical Stomas
7.ACE Gene Polymorphism and the Development of Microalbuminura in Korean Type 2 Diabetes Patients.
Hyoun Jung CHIN ; Yong Duck CHO ; Kyung Hwan JEONG ; Ju Young MOON ; Sang Ho LEE ; Cheon Gyu IHM ; Tae Won LEE
Korean Journal of Nephrology 2008;27(1):38-45
PURPOSE: Pathophysiological causes of the development and progression of diabetic nephropathy are not well known, but the angiotensin-converting enzyme (ACE) gene polymorphism has been proposed to be involved in its development. To clarify risk factors for the development of microalbuminuria in Korean type 2 diabetes patients, a retrospective study on the last 10 years was conducted on outpatients with type 2 diabetes. METHODS: The impact of insertion/deletion (I/D) genotypes on the progression of diabetic nephropathy in 105 Korean type 2 diabetes patients with normoalbuminuria at diagnosis was investigated by retrospective review of clinical data. Polymorphisms of the ACE gene were examined. RESULTS: During the follow up over the last 10 years, 23 of 105 patients developed Microalbuminuria (21.9%). ACE genotypes were D/D 19.5%, D/I 41.5%, I/I 39% in microalbuminuria group, as compared with D/D 17.4%, I/D 26.1%, I/I 56.5% in normoalbuminuria group. Higher levels of mean HbA1c and mean triglyceride were noted in microalbuminuira group, as compared with those in normoalbuminuria group. Kaplan-Meier survival curve showed that higher HbA1c and higher triglyceride level were significant predictors to the development of Microalbuminuria, but I/D genotype of ACE gene did not affect. Cox regression model also showed that higher HbA1c and triglyceride were independent variables. CONCLUSION: The control of blood glucose or lipid, rather than the genetic factors such as ACE polymorphism, was considered to be more influential factor on the development of microalbuminuria in Korean patients with type 2 diabetes mellitus.
Blood Glucose
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Diabetes Mellitus, Type 2
;
Diabetic Nephropathies
;
Follow-Up Studies
;
Genotype
;
Humans
;
Outpatients
;
Peptidyl-Dipeptidase A
;
Polymorphism, Genetic
;
Retrospective Studies
;
Risk Factors