1.Extraction of Misplaced Endcap during Tibia Intramedullary Nailing by 'Fish-Hook' Technique: Technical Note.
Journal of the Korean Fracture Society 2015;28(3):194-197
Endcap placement after intramedullary nailing can be cumbersome. Misplacement of the endcap which may be difficult to extract may occur. In this report, a simple Kirschner wire device with 'fish-hook' technique may ease the procedure without further violating bony or soft tissues.
Fracture Fixation, Intramedullary*
;
Tibia*
2.Ovarian Protection by Selective Coil Embolization of a Uteroovarian Anastomosis before Uterine Fibroid Embolization: A Report of Two Cases.
Seung Boo YANG ; Han Hyeok IM ; Yun Woo CHANG ; Dong Erk GOO
Journal of the Korean Radiological Society 2006;55(3):229-233
Premature menopause can be developed as a result of undesired nontarget ovary embolization during the performance of uterine fibroid embolization. The etiology of ovarian failure after uterine fibroid embolization is not yet clearly defined, but one of the leading possibilities is nontarget embolization of the ovaries. We report here on two cases in which superselective coil embolization of distal uterine artery collateral pathways to the ovary was performed during uterine fibroid embolization.
Angiography
;
Embolization, Therapeutic*
;
Female
;
Leiomyoma*
;
Menopause, Premature
;
Ovary
;
Uterine Artery
;
Uterus
3.Ovarian Protection by Selective Coil Embolization of a Uteroovarian Anastomosis before Uterine Fibroid Embolization: A Report of Two Cases.
Seung Boo YANG ; Han Hyeok IM ; Yun Woo CHANG ; Dong Erk GOO
Journal of the Korean Radiological Society 2006;55(3):229-233
Premature menopause can be developed as a result of undesired nontarget ovary embolization during the performance of uterine fibroid embolization. The etiology of ovarian failure after uterine fibroid embolization is not yet clearly defined, but one of the leading possibilities is nontarget embolization of the ovaries. We report here on two cases in which superselective coil embolization of distal uterine artery collateral pathways to the ovary was performed during uterine fibroid embolization.
Angiography
;
Embolization, Therapeutic*
;
Female
;
Leiomyoma*
;
Menopause, Premature
;
Ovary
;
Uterine Artery
;
Uterus
4.Treatment of Candida Infection after TKA.
Bong Ju PARK ; Ju O KIM ; Sul Jun KIM ; Ji Hoon CHANG ; Yun Hyeok YANG
Journal of the Korean Knee Society 2009;21(2):98-104
PURPOSE: We wanted to review the clinical results of staged reimplantation in patients who had candidal infection after total knee arthroplasty. MATERIALS AND METHODS: We reviewed five patients who had a candidal prosthetic knee infection, as was assessed by synovial fluid culture. Amphotericin B was intravenously administrated to all five patients during the postoperative period for six weeks and followed for at least twelve months. We carried out two-stage re-implantations with using antifungal agent-impregnated bone cement. Whether or not infection recurred was evaluated according to the symptoms and radiologic and hematologic studies. The clinical results were analyzed on the basis of the range of motion and hospital for special surgery (HSS) score. RESULTS: The final review showed that all of the symptoms disappeared. We could not find any loosening on the radiologic studies and all five patients had normal C-reactive protein values on serological exams. The mean postoperative range of motion was 1degrees (range: 0~5)~99degrees (range: 70~130) and the mean HSS score improved from 49.4 (range: 44~64) points to 73 (range: 65~90) after the re-implantation. CONCLUSION: We successfully controlled five candidal prosthetic knee infections by removing the components in conjunction with using an antifungal- impregnated bone cement and staged re-implantation after a 6 week course of intravenous antifungal drugs.
Amphotericin B
;
Arthroplasty
;
C-Reactive Protein
;
Candida
;
Humans
;
Knee
;
Postoperative Period
;
Range of Motion, Articular
;
Replantation
;
Synovial Fluid
5.A case of lung metastasis of papillary thyroid carcinoma presenting with tuberculous pleurisy.
Byung Kyu AHN ; Se Yun PARK ; Hun Gyu HWANG ; Gun Il LIM ; Sook KIM ; Seung Boo YANG ; Han Hyeok IM
Korean Journal of Medicine 2010;79(3):311-315
Papillary thyroid carcinoma is the most prevalent type of thyroid cancer. Metastasis of this carcinoma commonly occurs in the lung and has been reported to present 5 to 30 years after the initial diagnosis of thyroid cancer. Pleural effusion can mask this metastatic spread. In patients with pleural effusion, laboratory measurement of the adenosine deaminase (ADA) level in the pleural fluid can be effective in identifying and ranking pulmonary metastasis in the differential diagnosis. A 70-year-old female patient visited our hospital with dyspnea. She presented with a considerable amount of pleural effusion. A pleural biopsy was performed and the Ziehl-Neelsen stains revealed a few acid-fast bacilli, but the ADA level in the pleural fluid was 2.4 IU/L. After drainage of the pleural effusions, we discovered pulmonary nodules by computed tomography (CT), which were later diagnosed through histologic examination as pulmonary metastasis from papillary thyroid carcinoma. We report this case.
Adenosine Deaminase
;
Aged
;
Biopsy
;
Carcinoma
;
Carcinoma, Papillary
;
Coloring Agents
;
Drainage
;
Dyspnea
;
Female
;
Humans
;
Lung
;
Masks
;
Neoplasm Metastasis
;
Pleural Effusion
;
Pleurisy
;
Thyroid Gland
;
Thyroid Neoplasms
;
Tuberculosis, Pleural
6.Hounsfield Number Measurement after a Uterine Fibroid Embolization: Significance as a Predictive Factor of Embolization Success.
Seung Boo YANG ; San Jin LEE ; Gyo Chang CHOI ; Han Hyeok IM ; Dong Erk GOO ; He Kyung LEE ; Deuk Lin CHOI ; Gui Hyang KWON ; Yun Woo CHANG ; In Ho CHA
Journal of the Korean Radiological Society 2008;59(1):13-20
PURPOSE: To assess the usefulness of the Hounsfield number, measured by a non-contrast enhanced pelvic CT, after a uterine artery embolization as an index of the successful outcome of a uterine fibroid embolization (UFE). MATERIALS AND METHODS: The study subjects included 15 women (age range: 28-49 years, mean age: 36.4 years) diagnosed with symptomatic uterine myomas and seen from March 2003 to August 2005. A non-contrast enhanced pelvic CT scan was performed six hours after a uterine artery embolization. The global and maximal CT numbers were measured for each myoma. In addition, a pelvic MRI was performed to measure the volume of each myoma prior to and 6 months after the UFE. The relationship between fibroid volume reduction and the global CT number were prospectively analysed. RESULTS: The mean global CT number was 91.25 HU in Group I and 40.8 HU in Group II. Further, the mean fibroid volume reduction rate was 73% in Group I and 10% in Group II (p < 0.05). CONCLUSION: The global CT number measured by a non-contrast enhanced pelvic CT is a useful predictive factor of a successful uterine fibroid embolization.
Embolization, Therapeutic
;
Female
;
Humans
;
Leiomyoma
;
Myoma
;
Prospective Studies
;
Radiology, Interventional
;
Tomography, X-Ray Computed
;
Uterine Artery Embolization
;
Uterine Neoplasms
7.Discovery and Functional Study of a Novel Genomic Locus Homologous to Bα-Mating-Type Sublocus of Lentinula edodes
Yun Jin LEE ; Eunbi KIM ; Hyerang EOM ; Seong-Hyeok YANG ; Yeon Jae CHOI ; Hyeon-Su RO
Mycobiology 2021;49(6):582-588
The interaction of mating pheromone and pheromone receptor from the B mating-type locus is the first step in the activation of the mushroom mating signal transduction pathway.The B mating-type locus of Lentinula edodes is composed of Bα and Bβ subloci, each of which contains genes for mating pheromone and pheromone receptor. Allelic variations in both subloci generate multiple B mating-types through which L. edodes maintains genetic diversity. In addition to the B mating-type locus, our genomic sequence analysis revealed the presence of a novel chromosomal locus 43.3 kb away from the B mating-type locus, containing genes for a pair of mating pheromones (LPHBN1 and PHBN2) and a pheromone receptor (RCBN). The new locus (Bα-N) was homologous to the Bα sublocus, but unlike the multiallelic Bα sublocus, it was highly conserved across the wild and cultivated strains. The interactions of RcbN with various mating pheromones from the B and Bα-N mating-type loci were investigated using yeast model that replaced endogenous yeast mating pheromone receptor STE2 with RCBN. The yeast mating signal transduction pathway was only activated in the presence of PHBN1 or PHBN2 in the RcbN producing yeast, indicating that RcbN interacts with self-pheromones (PHBN1 and PHBN2), not with pheromones from the B matingtype locus. The biological function of the Bα-N locus was suggested to control the expression of A mating-type genes, as evidenced by the increased expression of two A-genes HD1 and HD2 upon the treatment of synthetic PHBN1 and PHBN2 peptides to the monokaryotic strain of L. edodes.
8.Validity of Repeated MRI in Degenerative Lumbar Disease with Conservative Management.
Ju Oh KIM ; Bong Ju PARK ; Byung Wan CHOI ; Kyung Jin SONG ; Byung Ryeul CHOI ; Yun Hyeok YANG
The Journal of the Korean Orthopaedic Association 2009;44(6):604-612
PURPOSE: This study examined the value and indications of repeated MRI in degenerative lumbar diseases under conservative management by comparing the primary MR and repeated MR images with respect to the symptomatic and radiological changes. MATERIALS AND METHODS: Seventy patients with degenerative lumbar disease under conservative management underwent repeat MRI. Five MRI findings, including disc, foramen, facet joint, nerve root, and ligamentum flavum, were used to examine the difference between the initial and repeat MRI. The severity was graded using a four-point scale for each item. The patients were divided into 3 groups in order to compare the radiological changes and symptomatic changes, as follows; Group I no change from the initial symptoms (38 cases), Group II aggravation of the initial pain (18 cases), and Group III aggravation of the initial neurology or the development of a new neurology (14 cases). RESULTS: The mean scores of each item the disc, foramen, facet joint, nerve root and ligamentum flavum increased from 1.76, 1.31-1.79, 1.71, and 1.47, respectively, to 1.90, 1.47, 1.80, 1.79, and 1.53, respectively. Group III showed the greatest proportion of cases with an increasing grading score (78%, 11 cases) only the disc was significant. CONCLUSION: Repeat MRI in degenerative lumbar disease under conservative management was found to be valuable only in cases with aggravated neurological symptoms, and was not relevant in cases with persistent symptoms or aggravated pain alone.
Humans
;
Ligamentum Flavum
;
Neurology
;
Zygapophyseal Joint
9.Gender Differences in Factors Related to Prehospital Delay in Patients with ST-Segment Elevation Myocardial Infarction.
Hee Sook KIM ; Kun Sei LEE ; Sang Jun EUN ; Si Wan CHOI ; Dae Hyeok KIM ; Tae Ho PARK ; Kyeong Ho YUN ; Dong Heon YANG ; Seok Jae HWANG ; Ki Soo PARK ; Rock Bum KIM
Yonsei Medical Journal 2017;58(4):710-719
PURPOSE: The aim of our study was to investigate gender differences in factors related to prehospital delay and identify whether the knowledge of acute myocardial infarction symptoms affects this delay in Korean patients with ST-elevation myocardial infarction (STEMI). MATERIALS AND METHODS: A total of 350 patients (286 men, 64 women) with confirmed STEMI were interviewed to investigate socio-demographics, history of disease, symptom onset time, and factors that contributed to delayed decision time in seeking treatment and hospital arrival time from symptom onset. Factors associated with prehospital delay were examined separately by gender using univariate and multivariate analyses. RESULTS: Female patients had higher proportions of ≥60-minute decision time and ≥120-minute arrival time compared to male patients (33.9% vs. 23.1%, 60.9% vs. 52.1%, respectively). However, the difference was not statistically significant (p=0.093 and 0.214, respectively). Previous cardiovascular disease (CVD) was associated with increased decision time in men, whereas, in women, lower educational status caused a greater delay in decision time. Factors associated with hospital arrival time excluding delayed decision time were referral from another hospital, previous CVD, and percutaneous coronary intervention in men, and referral from another hospital in women. CONCLUSION: Gender differences exist in factors related to prehospital delay. Therefore, public education to reduce prehospital delay should be conducted according to gender with a focus on the pertinent factors.
Acute Coronary Syndrome
;
Cardiovascular Diseases
;
Education
;
Educational Status
;
Female
;
Humans
;
Male
;
Multivariate Analysis
;
Myocardial Infarction*
;
Percutaneous Coronary Intervention
;
Referral and Consultation
;
Sex Characteristics
;
Time Out, Healthcare
10.The Efficacy and Safety of a Combined Alendronate and Calcitriol Agent (Maxmarvil): A Postmarketing Surveillance Study in Korean Postmenopausal Women with Osteoporosis.
Hee Won SUH ; Hyun Ok KIM ; Young Sik KIM ; Sung SUNWOO ; Jung Ah LEE ; Hye Ree LEE ; Byungsung KIM ; Dae Hyun KIM ; Youn Seon CHOI ; Yoo Seock CHEONG ; Keunsang YUM ; Yun Jun YANG ; Byung Yeon YU ; Chung Hwan CHO ; Sat Byul PARK ; Dong Hyeok SHIN
Korean Journal of Family Medicine 2012;33(6):346-355
BACKGROUND: Combined therapy with alendronate and calcitriol may have additive effects on bone density. An observational study was performed to evaluate the efficacy and safety of Maxmarvil, a combinative agent of alendronate (5 mg) and calcitriol (0.5 microg), and to identify factors associated with efficacy. METHODS: A total of 568 postmenopausal women with osteoporosis were enrolled by family physicians in 12 hospitals. The study subjects took Maxmarvil daily for 12 months. Questionnaires about baseline characteristics, socioeconomic status, and daily calcium intake were completed at the first visit. Adverse events were recorded every 3 months and bone mineral density (BMD) in the lumbar spine was measured using dual-energy X-ray absorptiometry at baseline and after 12 months. We evaluated the efficacy and safety of Maxmarvil, and the factors related to BMD improvement. RESULTS: A total of 370 patients were included in final analysis. The median BMD was 0.81 +/- 0.12 g/cm2 at pre-treatment and 0.84 +/- 0.13 g/cm2 after one year. The average BMD improvement was 3.4% +/- 6.4% (P < 0.05), and 167 (45.1%) patients showed improvement. Factors associated with improved BMD were continuation of treatment (odds ratio [OR], 2.41; 95% confidence interval [CI], 1.15 to 5.07) and good compliance (OR, 2.54; 95% CI, 1.29 to 5.00). Adverse events were reported by 35 of the 568 patients, with the most common being abdominal pain and dyspepsia. CONCLUSION: Maxmarvil was found to be safe, well tolerated and effective in osteoporosis treatment. Continuation of treatment and good compliance were the factors associated with efficacy.
Abdominal Pain
;
Absorptiometry, Photon
;
Alendronate
;
Bone Density
;
Calcitriol
;
Calcium
;
Compliance
;
Drug Combinations
;
Female
;
Humans
;
Osteoporosis
;
Osteoporosis, Postmenopausal
;
Physicians, Family
;
Social Class
;
Spine
;
Surveys and Questionnaires