1.Isolation of borrelia burgdorferi, the causative agent of lyme disease, from ixodes ticks in Korea.
Kyung Hee PARK ; Seung Hyun LEE ; Woong Jae WON ; Won Jong JANG ; Woo Hyun CHANG
Journal of the Korean Society for Microbiology 1992;27(4):307-312
No abstract available.
Borrelia burgdorferi*
;
Borrelia*
;
Ixodes*
;
Korea*
;
Lyme Disease*
;
Ticks*
2.Pelvic Insufficiency Fracture in Severe Osteoporosis Patient.
Woong Chae NA ; Sang Hong LEE ; Sung JUNG ; Hyun Woong JANG ; Suenghwan JO
Hip & Pelvis 2017;29(2):120-126
PURPOSE: To evaluate clinical features and the effect of parathyroid hormone (PTH) on treatment outcomes of patients with pelvic insufficiency fractures. MATERIALS AND METHODS: Fifteen patients diagnosed with pelvic insufficiency fractures were evaluated retrospectively. All patients had osteoporosis with mean lumbar T score of −3.9 (range, −3.1 to −6.4) and the mean age was 76.5 years. In all cases, simple radiography and computed tomography was used for final diagnosis; additional magnetic resonance imaging and technetium bone scans were used to confirm the diagnosis in 2 and 6 patients, respectively. Initial conservative treatment was used in all cases; treatment with PTH was applied in 5 cases. Radiological follow-up was done every 4 weeks up to 6 months and every 3 months thereafter. Symptom improvement was measured using visual analogue scale (VAS) score. RESULTS: Fractures were located: i) sacrum and pubis (9 cases), ii) isolated sacrum (4 cases) and iii) isolated pubis (2 cases). One case showed fracture displacement and pain aggravation at 4 week follow-up which was treated with percutaneous sacro-iliac fixation using cannulated screws. Duration of bone union was significantly shorter in the patients who used PTH (P<0.05). VAS scores were also lower in the group treated with PTH; however, statistical significance was not reached. CONCLUSION: In patients with osteoporosis, a pelvic insufficiency fracture should be considered if pain is experienced in the pelvic area in the absence of major trauma. While nonoperatic has been shown to be sufficient for treatment, our study shows that PTH therapy shortens treatment period and could be a favorable treatment option.
Diagnosis
;
Follow-Up Studies
;
Fractures, Stress*
;
Humans
;
Magnetic Resonance Imaging
;
Osteoporosis*
;
Parathyroid Hormone
;
Pubic Bone
;
Radiography
;
Retrospective Studies
;
Sacrum
;
Technetium
3.A Irreducible Ankle Fracture and Dislocation Due to Injured Tibialis Posterior Tendon Interposition: A Case Report.
Jun Young LEE ; Yi Gyu BAK ; Hyun Woong JANG
Journal of Korean Foot and Ankle Society 2017;21(2):70-74
Fractures and fracture-dislocations of the ankle are caused by a variety of mechanisms. In addition to fractures, injuries of soft tissue, such as ligaments, tendons, nerves, and muscles may also occur. Among these, a tibialis posterior tendon injury is difficult to be identified due to swelling and pain at the fracture site. It is difficult to observe tibialis posterior tendon injury on a simple radiograph; it is usually found during surgery by accident. There are some studies regarding irreducible ankle fracture-dislocations due to interposition of the tibialis posterior tendon; however, to the best of our knowledge, there has not been any report about interposition of injured tibialis posterior tendon. Herein, we report a case of an irreducible fracture-dislocation of the ankle due to injured tibialis posterior tendon interposition that was observed intraoperatively, interrupting the reduction of ankle fracture-dislocation. We obtained satisfactory clinical result after reduction of the trapped tendon, fracture reduction, and internal fixation; therefore, we are willing to report this case with the consent of the patient. This study was conducted with an approval from the local Institutional Ethics Review Board.
Ankle Fractures*
;
Ankle*
;
Dislocations*
;
Ethics, Institutional
;
Humans
;
Ligaments
;
Muscles
;
Tendon Injuries
;
Tendons*
4.Expression of p-glycoprotein on human bladder transitional cell carcinoma.
Sung Koo JANG ; Joo Hee LEE ; Joon Woong SON ; Choong Hyun LEE ; Jin Il KIM ; Soo Yong CHAE
Journal of the Korean Cancer Association 1993;25(2):268-275
No abstract available.
Carcinoma, Transitional Cell*
;
Humans*
;
P-Glycoprotein*
;
Urinary Bladder*
5.Evaluation of Accessory Navicular Bone Using a Bone Scan and Its Clinical Significance for the Prognosis and Treatment.
Sung Hae PARK ; Jun Young LEE ; Hyun Woong JANG
Journal of Korean Foot and Ankle Society 2018;22(2):62-67
PURPOSE: To evaluate the clinical significance and usefulness of a bone scan in accessory navicular bone. MATERIALS AND METHODS: Eighty-five patients with foot pain and accessory navicular bone on radiography, who underwent bone scan from 2012 to 2015, were analyzed retrospectively. The subjects was divided into a symptomatic and asymptomatic group according to the presence of navicular bone tenderness. The grade of bone scan uptake was divided into 3 grades. Age, gender, grade of bone scan and size of the accessory navicular bone were analyzed. The symptomatic group were divided into a low (grade 0, 1) and high uptake (grade 2) group to determine the appropriate treatment. The low uptake group was treated conservatively for 3 months. The high uptake group was initially treated conservatively for 3 months and surgery was performed if pain persisted. For the clinical evaluation, the visual analogue scale, American Orthopaedic Foot and Ankle Society midfoot scale were evaluated in the first examination and last follow-up date. The patient's satisfaction grade was also evaluated at the last follow-up. RESULTS: The asymptomatic group mostly showed no uptake in the bone scan. On the other hand, some patients in the asymptomatic group showed an increase in uptake. In these patients, the size of accessory navicular bone was related to the grade of bone scan uptake, showing that the bone scan uptake grade can be predicted when applying different cut off values for the bone size. The symptomatic group mostly showed uptake in the bone scan and the grade of uptake had a positive correlation with the size of the accessory navicular bone (p<0.05). Age and gender were not related to the bone scan uptake. In the clinical evaluation, conservative and surgical treatment showed a good outcome. CONCLUSION: The bone scan uptake grade alone cannot be used to completely predict the symptoms. On the other hand, the size of the accessory bone can increase the bone scan uptake. Therefore, the size of the accessory bone, and patient symptoms should be considered in patients with a high uptake when deciding treatment.
Ankle
;
Follow-Up Studies
;
Foot
;
Hand
;
Humans
;
Prognosis*
;
Radiography
;
Retrospective Studies
6.The Weaning Method of inhaled Nitric Oxide.
Hyun Woo LEE ; Jae Woong LEE ; Sung Yeul HYUN ; Ha Chang LEE ; Chul Hyun PARK ; Kook Yang PARK ; Hyeon Su YOO ; Kyung Cheon LEE ; Young Jin JANG
Journal of the Korean Pediatric Society 2001;44(4):413-417
PURPOSE: inhaled nitric oxide(iNO) is an excellent method for the postoperative pulmonary hypertension in congenital heart disease. But more detailed care is needed because of the development of rebound pulmonary hypertension after NO Withdrawal. We performed this study in order to discontinue the iNO successfully by way of presenting the adequate weaning and supplying methods. METHODS: Between January, 1998 and August, 1999 we sudied 10 patients who had rebound pulmonary hypertension(RPH) after iNO withdrawal. We completed the iNO in these patween the first the second trial of the weaning process. We tried to discover the differences between the first and second weaning process. We measured NO concentration at the start and just before NO withdrawal and during the period of weaning process. Moreover, to identify the iNO effects during the weaning of the iNO, we counted the degree of the change of PaO2/FiO2and mean PAP/SAP beween initial and at half of the initial NO concentration. RESULTS: Second weaning had a longer duration weaning process(11+/-0 cersus 5+/- hours, P<0.05), lower NO concentration just before NO withdrawal(2+/-.6 versus 4+/-ppm, P<0.05). In the change of the mean PAP/SAP and PaO2/FiO2as iNO was weaning from the initial iNO concentration to a half of the initial iNO concentration, the degree of increase in mean PAP/SAP(0.026+/-.07 versus 0.054+/-.07, P<0.05) and the degree of decrease in PaO2/FiO2(49+/-4 versus 65+/-2, P<0.05) were smaller in the second in the second weaning process than the first weaning process. CONCLUSION: A successful weaning of iNO can be performed with a low iNO concentration at the start and just before withdrawal and with the long duration iNO weaning process. Moreover, We speculate that the degree of change in the mean PAP/SAP and PaO2/FiO2at the half of the iNO weaning process are an indicator for the development of RPH.
Heart Defects, Congenital
;
Humans
;
Hypertension, Pulmonary
;
Nitric Oxide*
;
Weaning*
7.Low-Dose-Rate Brachytherapy for Low- and Intermediate-Risk Groups of Localized Prostate Cancer.
Dong Soo PARK ; Jong Jin OH ; Woong Ki JANG ; Sang Hyun JEE ; Hyun Soo SHIN
Korean Journal of Urology 2009;50(7):656-662
PURPOSE: We applied low-dose-rate brachytherapy for low- and intermediate-risk groups of prostate cancer patients. Our initial experiences were analyzed to assess the result of low-dose-rate brachytherapy for low- and intermediate-risk groups of patients with localized prostate cancer. MATERIALS AND METHODS: A total of 50 consecutive patients have been treated with brachytherapy for 1 year since April 2007. Among them, a total of 24 patients in the low- or intermediate-risk groups were enrolled: 10 of the 24 patients were in the low-risk group (clinical T1a-T2b, Gleason score [GS] of 2-6, PSA<10 ng/ml), and 14 patients were in the intermediate-risk group (clinical T2b-T2c, Gleason score of 7, or PSA 10-20 ng/ml). Implantations were performed by practicing a real-time ultrasound-guided placement including prostatic capsular placement in the intermediate-risk group. All 24 patients were treated with 1 to 3 months of androgen-deprivation therapy. RESULTS: In the low- and intermediate-risk groups, the median patients' ages were 64 and 70 years, respectively. The numbers of patients in the low-risk group according to clinical T stage were 4 cases of T1c and 6 cases of T2a. The intermediate-risk group included 4 patients of stage T2a, 3 patients of stage T2b, and 7 patients of T2c. Five patients with a GS< or =6 and 9 patients with a GS of 7 were classified as being in the intermediate-risk group. Serum PSA levels in the intermediate-risk group were less than 10 ng/ml in 11 patients and 10-20 ng/ml in 3 patients. The median radiation doses delivered to 90% of the prostate in the low-risk and intermediate-risk groups were 257.5 Gy (range, 142.5-357.5 Gy) and 260.0 Gy (range, 147.5-357.5 Gy), respectively. Biochemical failure was not revealed in any case during follow-up. No patients experienced major complications. CONCLUSIONS: We can expect outstanding local control effect with low-dose-rate brachytherapy in low- and intermediate-risk prostate cancer. Our technique of modifying the insertion field in the intermediate-risk group is feasible and tolerable. However, long-term follow-up data are needed for this strategy.
Brachytherapy
;
Follow-Up Studies
;
Humans
;
Neoplasm Grading
;
Prostate
;
Prostatic Neoplasms
8.Newly Developed Urinary Retention and Motor Weakness of Lower Extremities in a Postherpetic Neuralgia Patient.
Mi Hyun LEE ; Jang Ho SONG ; Doo Ik LEE ; Hyun Soo AHN ; Ji Woong PARK ; Young Deog CHA
The Korean Journal of Pain 2013;26(1):76-79
During the early stage of postherpetic neuralgia, an epidural block on the affected segment is helpful in controlling pain and preventing progression to a chronic state. The main neurologic complication following an epidural block is cord compression symptom due to an epidural hematoma. When neurologic complications arise from an epidural block for the treatment of postherpetic neuralgia, it is important to determine whether the complications are due to the procedure or due to the herpes zoster itself. We report a case of a patient who was diagnosed with herpes zoster myelitis during treatment for postherpetic neuralgia. The patient complained of motor weakness in the lower extremities after receiving a thoracic epidural block six times. Although initially, we believed that the complications were due to the epidural block, it was ultimately determined to be from the herpes zoster myelitis.
Hematoma
;
Herpes Zoster
;
Humans
;
Lower Extremity
;
Myelitis
;
Neuralgia
;
Neuralgia, Postherpetic
;
Urinary Retention
9.Hypercholesterolemia and In-Vivo Coronary Plaque Composition in Patients with Coronary Artery Disease: A Virtual Histology - Intravascular Ultrasound Study.
Young Hoon SEO ; Chung Seop LEE ; Hyung Bin YUK ; Dong Ju YANG ; Hyun Woong PARK ; Ki Hong KIM ; Wan Ho KIM ; Taek Geun KWON ; Jang Ho BAE
Korean Circulation Journal 2013;43(1):23-28
BACKGROUND AND OBJECTIVES: Hypercholesterolemia is a key factor in the development of atherosclerosis. We sought to evaluate the relation between hypercholesterolemia and plaque composition in patients with coronary artery disease. SUBJECTS AND METHODS: Study subjects consisted of 323 patients (mean 61.5 years, 226 males) who underwent coronary angiography and virtual histology-intravascular ultrasound examination. Patients were divided into two groups according to total cholesterol level: hypercholesterolemic group (> or =200 mg/dL, n=114) and normocholesterolemic group (<200 mg/dL, n=209). RESULTS: Hypercholesterolemic patients were younger (59.7+/-13.3 years vs. 62.6+/-11.5 years, p=0.036), than normocholesterolemic patients, whereas there were no significant differences in other demographics. Hypercholesterolemic patients had higher corrected necrotic core volume (1.23+/-0.85 mm3/mm vs. 1.02+/-0.80 mm3/mm, p=0.029) as well as percent necrotic core volume (20.5+/-8.5% vs. 18.0+/-9.2%, p=0.016) than normocholesterolemic patients. At the minimal lumen area site, percent necrotic core area (21.4+/-10.5% vs. 18.4+/-11.3%, p=0.019) and necrotic core area (1.63+/-1.09 mm2 vs. 1.40+/-1.20 mm2, p=0.088) were also higher than normocholesterolemic patients. Multivariate linear regression analysis showed that total cholesterol level was an independent factor of percent necrotic core volume in the culprit lesion after being adjusted with age, high density lipoprotein-cholesterol , hypertension, diabetes mellitus, smoking and acute coronary syndrome (beta 0.027, 95% confidence interval 0.02-0.053, p=0.037). CONCLUSION: Hypercholesterolemia was associated with increased necrotic core volume in coronary artery plaque. This study suggests that hypercholesterolemia plays a role in making plaque more complex, which is characterized by a large necrotic core, in coronary artery disease.
Acute Coronary Syndrome
;
Atherosclerosis
;
Cholesterol
;
Coronary Angiography
;
Coronary Artery Disease
;
Coronary Vessels
;
Demography
;
Diabetes Mellitus
;
Humans
;
Hypercholesterolemia
;
Hypertension
;
Linear Models
;
Smoking
10.Midureteral Hypoplasia at Congenital Midureteral Stricture.
Jong Jin OH ; Woong Gi JANG ; Sang Hyun JEE ; Young Kwon HONG
Korean Journal of Urology 2008;49(6):570-573
Hydronephrosis is the most common abnormal finding of genitourinary tract detected by fetal ultrasonography. The causes of majority are attributed to ureteropelvic junction(UPJ) obstruction. The remaining are secondary to vesicoureteral reflux, megaureter, or posterior urethral valves. Congenital midureteral stricture is an unusual cause of hydronephrosis. We report a case in a one month old male baby with hydronephrosis(grade V, 20mm in AP diameter). He was diagnosed as a ureteropelvic junction obstruction. A mid ureteral stricture was identified with intraoperative anterograde pyelography. After removal of severely strictured ureter, the dilated proximal end was anastomosed to the spatulated distal ureter by microscope. Pathologic finding was subepithelial fibrosis and segmental inner smooth muscle attenuation. Ureteral stent was removed 2 months after surgery. Degree of hydronephrosis was markedly reduced on the follow up ultrasonography(14mm in AP diameter) 6 months after surgery.
Constriction, Pathologic
;
Fibrosis
;
Follow-Up Studies
;
Humans
;
Hydronephrosis
;
Male
;
Muscle, Smooth
;
Stents
;
Ultrasonography, Prenatal
;
Ureter
;
Urography
;
Vesico-Ureteral Reflux