1.The Result of Anterior Interbody Fusion in Spondyloysis and Spondylolisthesis
Key Yong KIM ; Kwang Pyo JEON ; Duk Yun CHO ; Sang Yo HAN
The Journal of the Korean Orthopaedic Association 1982;17(6):1127-1136
Spondylolisthesis and spondylolysis is one of the major causes of the low back pain and orthopaedic surgeons frequently encounter this problems with increasing tendency. In 19th century, spondylolisthesis had been studied by the European obstetrician as the main cause of dystocia. Advancement of the radiological techniques enabled us to know more precise degree of slipping. Therefore, many surgical techniques have been used. Spondylolysis has been also studied as the precursor of the spondylolisthesis. This report is based upon the analysis of the records of 26 patients who had operated at the Department of Orthopaedic Surgery of National Medical Center from 1972 to 1981. The results were as follows. 1. Most common age group was 30–50 age group and theres no sexual difference. 2. Most common symptoms were lumbago and radiating pain and the most common sign was Lasegue sign. 3. Most common type was isthmic type and location was 5th lumbar vertebra, and degree of slipping was grade I by Meyerding's method. 4. The fusion of the grafted bone were observed in 24 cases among 26 cases: of which the duration were 3 months in 16 cases and remaining 8 cases had duration between 3 and 6 months. 5. Postoperative analysis under the basis of the functional recovery was satisfactory in 93% of cases by Gill's criteria.
Dystocia
;
Female
;
Humans
;
Low Back Pain
;
Methods
;
Pregnancy
;
Spine
;
Spondylolisthesis
;
Spondylolysis
;
Surgeons
;
Transplants
2.Clinical Analysis of Diabetic Gangrene
Key Yong KIM ; Duk Yun CHO ; Sang Yo HAN ; Kwang Pyo JEON ; Hyung Joon YOO
The Journal of the Korean Orthopaedic Association 1983;18(6):1231-1237
No abstract available in English.
Gangrene
3.Colorectal epithelial neoplasm associated with gut-associated lymphoid tissue
Yo Han JEON ; Ji Hyun AHN ; Hee Kyung CHANG
Journal of Pathology and Translational Medicine 2020;54(2):135-145
Background:
Colorectal epithelial neoplasm extending into the submucosal gut-associated lymphoid tissue (GALT) can cause difficulties in the differential diagnosis. Regarding GALT-associated epithelial neoplasms, a few studies favor the term “GALT carcinoma” while other studies have mentioned the term “GALT-associated pseudoinvasion/epithelial misplacement (PEM)”.
Methods:
The clinicopathologic characteristics of 11 cases of colorectal epithelial neoplasm associated with submucosal GALT diagnosed via endoscopic submucosal dissection were studied.
Results:
Eight cases (72.7%) were in males. The median age was 59 years, and age ranged from 53 to 73. All cases had a submucosal tumor component more compatible with GALT-associated PEM. Eight cases (72.7%) were located in the right colon. Ten cases (90.9%) had a non-protruding endoscopic appearance. Nine cases (81.8%) showed continuity between the submucosal and surface adenomatous components. Nine cases showed (81.8%) focal defects or discontinuation of the muscularis mucosae adjacent to the submucosal GALT. No case showed hemosiderin deposits in the submucosa or desmoplastic reaction. No case showed single tumor cells or small clusters of tumor cells in the submucosal GALT. Seven cases (63.6%) showed goblet cells in the submucosa. No cases showed oncocytic columnar cells lining submucosal glands.
Conclusions
Our experience suggests that pathologists should be aware of the differential diagnosis of GALT-associated submucosal extension by colorectal adenomatous neoplasm. Further studies are needed to validate classification of GALT-associated epithelial neoplasms.
4.Comparative Evaluation of the STANDARD F Influenza A/B FIA Test with the Sofia Influenza A+B FIA and SD BIOLINE Influenza Ag A/B/A(H1N1) tests for Influenza A Virus Detection
Soohun YOO ; Si Hyun KIM ; Ga Won JEON ; Yo-Han PARK ; Sae Am SONG ; Jeong Hwan SHIN
Annals of Clinical Microbiology 2021;24(1):21-26
Background:
This study aimed to evaluate the diagnostic performance of the STANDARD F Influenza A/B FIA test (SD Biosensor Inc., Korea) for the rapid detection of influenza A virus in comparison with the Sofia Influenza A+B FIA (Quidel Corp., USA) and SD BIOLINE Influenza Ag A/B/A(H1N1) (Standard Diagnostic, Inc., Korea) tests.
Methods:
A total of 227 non-duplicated nasopharyngeal aspirates submitted for real-time RT-PCR analysis were included in the study. We used the three commercial tests in remnant samples from routine assays, according to the manufacturer’s instructions. We analyzed the diagnostic performance, including sensitivity and specificity, of the three tests.
Results:
Real-time RT-PCR analysis showed that 67 (29.5%) samples were positive and 160 (70.5%) were negative for influenza A virus, and that all the specimens were negative for influenza B. The overall sensitivity and specificity for influenza A virus detection were 50.7% and 100% for the STANDARD F, 50.7% and 100% for the Sofia, and 29.9% and 100% for the SD BIOLINE tests, respectively. The STANDARD F and SD BIOLINE tests showed negative results for influenza B virus in all specimens, whereas the Sofia test showed two false-positive results.
Conclusion
The STANDARD F Influenza A/B test showed a good diagnostic performance and may be useful for the rapid diagnosis of influenza A.
5.One-year experience with single incision laparoscopic cholecystectomy in a single center: without the use of inverse triangulation.
Yun Beom RYU ; Jung Woo LEE ; Yo Han PARK ; Man Sup LIM ; Ji Woong CHO ; Jang Yong JEON
Annals of Surgical Treatment and Research 2016;90(2):72-78
PURPOSE: Single incision laparoscopic cholecystectomy (SILC) is generally performed with the use of inverse triangulation. In this study, we performed 3-channel or 4-channel SILC without the use of inverse triangulation. We evaluated the adequacy and feasibility of SILC using our surgical method. METHODS: We retrospectively reviewed our series of 309 SILCs performed between March 2014 and February 2015. RESULTS: Among 309 SILCs, male were 148 and female were 161 patients, mean age was 48.7 +/- 15.3 years old and mean body mass index was 24.8 +/- 3.8 kg/m2. Forty patients had previously undergone abdominal surgery including 6 cases of upper abdominal surgery. SILC after percutaneous transhepatic gallbladder (GB) drainage was completed in 8.7% of cases. There were 10 cases of emergency SILC. SILC was performed for noncomplicated GB including symptomatic GB stone and polyp in 66.7% of cases, acute cholecystitis in 33.3%. Overall, 96.8% of procedures were successfully completed without additional port. The reason for addition of an extra port or open conversion included technical difficulties due to severe adhesion and bleeding. The mean operating time was 60.7 +/- 22.3 minutes. The overall complication rate was 4.8%: 9 patients of wound seroma, 1 case of bile leakage from GB bed, 4 cases of intra-abdominal abscess or fluid collection, and 1 case of incisional hernia were developed. There was no case of common bile duct injury. CONCLUSION: Our surgical method of SILC without the use of inverse triangulation is safe, feasible and effective technique.
Abdominal Abscess
;
Bile
;
Body Mass Index
;
Cholecystectomy, Laparoscopic*
;
Cholecystitis, Acute
;
Common Bile Duct
;
Drainage
;
Emergencies
;
Female
;
Gallbladder
;
Hemorrhage
;
Hernia
;
Humans
;
Laparoscopy
;
Male
;
Polyps
;
Retrospective Studies
;
Seroma
;
Wounds and Injuries
6.Expression of ErbB receptors in the pre-pubertal and pubertal virgin mammary glands of dairy cows.
Byung Woo LEE ; Yo Han KIM ; Byung Suk JEON ; Naresh Kumar SINGH ; Won Ho KIM ; Meing Jooung KIM ; Byung Il YOON
Korean Journal of Veterinary Research 2012;52(4):269-273
In the present study, we investigated the expression patterns of ErbB family proteins in the pre-pubertal and pubertal mammary glands of dairy cows in association with gland development. For this study, we performed immunohistochemistry for ErbB-1-4 and Ki-67 cell proliferation marker. We found that the pre-pubertal and pubertal mammary glands had typical structures, including ducts and terminal end buds embedded in the stroma, and no development of lobuloalveolar structures. On immunohistochemistry, ErbB-2 and ErbB-3 were strongly expressed in the cytoplasm and nuclei in the epithelial cells of mammary ducts and terminal end buds, and stromal cells, whereas ErbB-1 and ErbB-4 were weakly expressed only in the cytoplasm of gland epithelium and stromal cells, irrespective of the developmental stage. Cell proliferation was inactive in the mammary gland cell compartments in both phases. Thus, expression of the ErbB family in the developing mammary glands was not associated with their functional effects, such as cell proliferation and lobuloalveolar development. In conclusion, ErbB receptors were differentially expressed in the epithelial and stromal cells of virgin mammary glands of dairy cows. Compared with rodent mammary glands, ErbB-3 and ErbB-4 were found to be highly expressed in bovine mammary glands.
Cell Proliferation
;
Cytoplasm
;
Epithelial Cells
;
Epithelium
;
Humans
;
Immunohistochemistry
;
Mammary Glands, Human
;
Proteins
;
Rodentia
;
Stromal Cells
7.A Case of a Huge Biliary Bezoar Treated with ESWL.
Hyeok Chan KWON ; Hong Ja KIM ; Yong Ho JANG ; Ji Hyun JEON ; Yo Han KIM ; Won Yong SUH ; Suk Bin JANG
Korean Journal of Pancreas and Biliary Tract 2014;19(1):37-41
A bezoar is a mass formed by the accumulation of digested food. A biliary bezoar, namely a bezoar formed in the bile duct, is rare, which occurs mostly in patients who formerly underwent cholecystectomy. It appears that incompetent sphincter produces occasional reverse flow of foreign bodies including undigested food from the alimentary canal into the bile tract. Surgical treatment is used for huge biliary bezoar which is too huge to be removed by nonsurgical treatment. Extracorporeal shock wave lithotripsy (ESWL) is mostly used to fragment renal or urinary calculi, but may be sparingly used against biliary calculi. This is to report the rare case of a patient with biliary bezoar who formerly underwent open cholecystectomy and choledocoduodenostomy. The patient's huge biliary bezoar was removed by ESWL and the successive execution of endoscopic retrograde cholangio pancreatography (ERCP). ESWL is expected to be a comparatively safe and convenient solution to huge biliary bezoars.
Bezoars*
;
Bile
;
Bile Ducts
;
Cholecystectomy
;
Foreign Bodies
;
Gallstones
;
Humans
;
Lithotripsy
;
Shock
;
Urinary Calculi
8.Bioequivalence of HCP1104, a New Fixed Dose Combination Drug and Co-administration of Eperisone 50 mg and Aceclofenac 100 mg: A Partial Replicated Crossover Study Design to Estimate the Pharmacokinetics of Highly Variable Drugs.
Mi Jo KIM ; Yo Han KIM ; Hee Youn CHOI ; Hae Sun JEON ; Yook Hwan NOH ; Hyeong Seok LIM ; Kyun Seop BAE
Journal of Korean Society for Clinical Pharmacology and Therapeutics 2013;21(2):120-129
BACKGROUND: This clinical study was conducted to compare pharmacokinetics of eperisone and aceclofenac of HCP1104, a new fixed dose combination drug with those in co-administration of eperisone 50 mg and aceclofenac 100 mg. The study used a partial replicated study design to characterize intra-subject variability of eperisone when co-administrated with aceclofenac. METHODS: A partial replicated crossover design was employed in 30 subjects. Each subject received a single dose of co-administration of eperisone 50 mg and aceclofenac 100 mg on two occasions and a single dose of 1 capsule of HCP1104. Blood samples were obtained for 24 hrs after dosing, and plasma was assayed for eperisone and aceclofenac by Liquid chromatography-electrospray ionization-mass spectrometry. RESULTS: Using an average bioequivalence criterion, the 90 % confidence limits for Ln-transformed Cmax and AUClast for aceclofenac fell wihin the acceptable range of 80 - 125 %. Point estimates of eperisone AUClast and Cmax were 1.0152 and 1.0490, respectively and the 90 % confidence interval for Cmax was 0.8499 - 1.3025. The within-subject coefficient of variation of Cmax for the reference was 50.198 %. Acceptance range for eperisone Cmax based on new bioequivalence guidance for highly variable drugs was extended to 0.6984 - 1.4319. CONCLUSION: The extent of exposure and rate of absorption of both eperisone and aceclofenac with a single dose of HCP1104 capsule were equivalent to those with co-administration of a marketed eperisone 50 mg tablet and a marketed aceclofenac 100 mg tablet under fasting conditions in healthy adult males.
Absorption
;
Adult
;
Cross-Over Studies*
;
Fasting
;
Humans
;
Male
;
Pharmacokinetics*
;
Plasma
;
Spectrum Analysis
;
Therapeutic Equivalency*
9.Inhibitory Effect of Metformin Therapy on the Incidence of Colorectal Advanced Adenomas in Patients With Diabetes.
Yo Han KIM ; Ran NOH ; Sun Young CHO ; Seong Jun PARK ; Soung Min JEON ; Hyun Deok SHIN ; Suk Bae KIM ; Jeong Eun SHIN
Intestinal Research 2015;13(2):145-152
BACKGROUND/AIMS: Metformin use has been associated with decreased colorectal cancer risk and mortality among diabetic patients. Recent research suggests that metformin use may decrease the incidence of colorectal adenomas in diabetic patients with previous colorectal cancer. This study aimed to assess the clinical effect of metformin use on the development of colorectal adenomas in diabetic patients without previous colorectal cancer. METHODS: Among 604 consecutive diabetic patients who underwent colonoscopic surveillance after initial colonoscopy between January 2002 and June 2012, 240 patients without previous colorectal cancer were enrolled in this study and were divided in two groups: 151 patients receiving metformin and 89 patients not receiving metformin. Patient demographics and clinical characteristics as well as the colorectal adenoma incidence rate were retrospectively analyzed. RESULTS: The incidence rate of total colorectal adenomas was not different according to metformin use (P=0.349). However, the advanced adenoma incidence rate was significantly lower in the metformin group compared with the non-metformin group (relative risk [RR], 0.09; P=0.011). Metformin use was independently associated with a decreased incidence of advanced colorectal adenomas after adjustment for clinically relevant factors (RR, 0.072; P=0.016). In addition, the cumulative development rate of advanced adenomas during follow-up was significantly lower in the metformin group compared with the non-metformin group (P=0.007). CONCLUSIONS: Metformin use in diabetic patients without previous colorectal cancer is associated with a lower risk of advanced colorectal adenomas.
Adenoma*
;
Colonoscopy
;
Colorectal Neoplasms
;
Demography
;
Diabetes Mellitus
;
Follow-Up Studies
;
Humans
;
Incidence*
;
Metformin*
;
Mortality
;
Retrospective Studies
10.Inhibitory Effect of Metformin Therapy on the Incidence of Colorectal Advanced Adenomas in Patients With Diabetes.
Yo Han KIM ; Ran NOH ; Sun Young CHO ; Seong Jun PARK ; Soung Min JEON ; Hyun Deok SHIN ; Suk Bae KIM ; Jeong Eun SHIN
Intestinal Research 2015;13(2):145-152
BACKGROUND/AIMS: Metformin use has been associated with decreased colorectal cancer risk and mortality among diabetic patients. Recent research suggests that metformin use may decrease the incidence of colorectal adenomas in diabetic patients with previous colorectal cancer. This study aimed to assess the clinical effect of metformin use on the development of colorectal adenomas in diabetic patients without previous colorectal cancer. METHODS: Among 604 consecutive diabetic patients who underwent colonoscopic surveillance after initial colonoscopy between January 2002 and June 2012, 240 patients without previous colorectal cancer were enrolled in this study and were divided in two groups: 151 patients receiving metformin and 89 patients not receiving metformin. Patient demographics and clinical characteristics as well as the colorectal adenoma incidence rate were retrospectively analyzed. RESULTS: The incidence rate of total colorectal adenomas was not different according to metformin use (P=0.349). However, the advanced adenoma incidence rate was significantly lower in the metformin group compared with the non-metformin group (relative risk [RR], 0.09; P=0.011). Metformin use was independently associated with a decreased incidence of advanced colorectal adenomas after adjustment for clinically relevant factors (RR, 0.072; P=0.016). In addition, the cumulative development rate of advanced adenomas during follow-up was significantly lower in the metformin group compared with the non-metformin group (P=0.007). CONCLUSIONS: Metformin use in diabetic patients without previous colorectal cancer is associated with a lower risk of advanced colorectal adenomas.
Adenoma*
;
Colonoscopy
;
Colorectal Neoplasms
;
Demography
;
Diabetes Mellitus
;
Follow-Up Studies
;
Humans
;
Incidence*
;
Metformin*
;
Mortality
;
Retrospective Studies