No abstract available.

Purpose: To compare encrustation resistance between silicon- and polytetrafluoroethylene (PTFE)-covered metallic ureteral stents (MUS) in an in vitro infection model and to determine the most effective material for reducing biofilm formation and encrustation. Materials and Methods: A total of 52 MUS were prepared: 26 silicon-covered and 26 PTFE-covered stents. Each sample was immersed in artificial urine inoculated with Proteus mirabilis in a biofilm reactor for 48 hours. After immersion, the stents were weighed to measure their encrustation level. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were used to assess the surface morphology and elemental composition of the encrustation deposits. Results: Silicon-covered stents showed a statistically significant reduction in weight gain due to encrustation compared to PTFE-co­vered stents (9.50±5.77 mg vs. 16.75±10.61 mg; p=0.004). Additionally, encrustation per unit length was lower in silicon-covered stents (0.76±0.45 mg/mm vs. 1.30±0.81 mg/mm; p=0.004). SEM and EDS analyses demonstrated lower calcium salt deposition on the silicon-co­vered stents, indicating greater resistance to encrustation. Conclusions Silicon-covered MUS demonstrated superior resistance to encrustation compared to PTFE-covered stents, supporting silicon as a more suitable covering material for long-term MUS applications. This finding may lead to extended stent lifespans and a reduced frequency of stent replacements, benefiting both patients and healthcare systems.

No abstract available.
Humans*

The transforaminal epidural injection (TFEI) has been preferred in many cases because it can deliver the injected dose of medication closer to the nerve root and better facilitate ventral epidural flow compared to other methods. However, in patients with deformities not demonstrated on fluoroscopic imaging, the needle may enter unwanted locations. We treated two cases of intradiscal injection of contrast dye, during the TFEI, in patients with lumbar disc herniation.
Congenital Abnormalities ; Discitis ; Humans ; Injections, Epidural ; Needles

PURPOSE: Augmentation mammoplasty by cohesive silicone gel implant is becoming more popular nowadays. Many types of complications have been reported, such as hematoma, seroma, infection, capsular contracture and etc. But there were no report of deep vein thrombosis(DVT) after augmentation mammoplasty in Korea. The authors experienced one case of DVT after augmentation mammoplasty using a cohesive silicone gel implant. METHODS: A 38-year-old woman with breast cancer underwent reconstruction by tissue expander and augmentation mammoplasty by cohesive silicone gel implant, and exchange of expander to cohesive silicone gel implant. The operation was finished without any complicating event. On 4th day after the operation, the patient complained of intermittent right lower leg pain. By doppler ultrasonography, the patient was diagnosed with acute venous thrombosis of the popliteal vein, posterior tibial vein and peroneal vein. RESULTS: Intravenous heparinization and oral warfarin were started immediately and elastic compression stocking was applied. Intravenous heparinization was continued until INR(blood coagulation unit) reached to target levels. The patient was discharged on 11th day of operation with oral warfarin. Other complication has not been reported after 10 weeks of operation. CONCLUSION: To our knowledge, this is the first report of DVT after silicone implant based breast augmentation.
Adult ; Breast ; Breast Neoplasms ; Contracture ; Female ; Hematoma ; Heparin ; Humans ; Korea ; Leg ; Mammaplasty ; Popliteal Vein ; Pulmonary Embolism ; Seroma ; Silicone Gels ; Stockings, Compression ; Tissue Expansion Devices ; Ultrasonography, Doppler ; Veins ; Venous Thrombosis ; Warfarin

Polyarteritis nodosa is a systemic necrotizing vasculitis that affects mainly small and medium-sized arteries that involve multiple organs. In addition to the systemic involvement of classical vasculitis, localized vasculitis involves blood vessels within a confined vascular distribution or single organ without clinical evidence of generalized inflammation. Localized vasculitis of the gastrointestinal tract is a rare entity. In particular, a limited involvement of the small bowel is an unusual manifestation of polyarteritis nodosa. In this report, we describe a case of biopsy-proven polyarteritis nodosa presenting as small bowel bleeding without other systemic manifestations.
Arteries ; Blood Vessels ; Gastrointestinal Tract ; Hemorrhage ; Inflammation ; Polyarteritis Nodosa ; Vasculitis

Fifty-two Korean patients with Behcet's syndome were typed for HLA antigens. 52 apparently healthy Korean subjects were used as controls; 42 for HLA-A, B, C and all 52 for HLA-DR typing. HLA-B5 and DRw8 presented significantly high frequencies in all patiens. According to Shimizu's classification, HLA-B5 and DRw8 were significantly increased in the complete type; B5 in the incomplete type; DR3 in the suspected-possible type. According to Lehner's classification, HLA-DR3 was significantly increased in the neurological type; B5 in the ocular type; B5 in the ocular type. We confirmed the association of HLA-B5 with the severity of Beh et's syndrome. A relation might exist between DRw8, DR3 and Behcet's syndrome.
Adolescent ; Adult ; Behcet Syndrome/*immunology ; Female ; HLA Antigens/*analysis/classification ; Human ; Korea ; Male ; Middle Age ; Support, Non-U.S. Gov't

PURPOSE: Nasal bone fracture is most common facial bone fracture. The cause of fractures is mainly trauma such as fighting, automobile accident and fall down, and it commonly involves young males. Very frequently nasal bone fractures are associated with other facial injuries such as orbital bone fracture, maxillary bone fracture and nasal septal deformities. Because of various dynamic directions of power are involved, phenomenon of fractures are also various and treatment cannot be simple. METHODS: We studied and analyzed retrospectively 452 cases nasal bone fractures from January 2008 to December 2010. Diagnosis were made with physical examination, Nasal bone X-rays, Facial bone CT and 3D facial bone CT. Four surgeons are involved in treatments of these patients and applied different procedure along patient's condition and deformity. We analyzed the cause of nasal bone fractures, deformities, associate injuries and applied surgical technique, and patient's satisfaction rate. In this study, old nasal bone fractures were excluded. RESULTS: Young male group was most commonly sustained nasal bone fracture and physical violence was most common cause of injury. 64 of 452 patient was involved associate injuries of face. Closed reduction were applied 246 cases and C-arm quide reduction were 167 cases and in 20 cases lateral osteotomy were applied. Approximately, more than 80% of the Patients were satisfied with the outcomes. CONCLUSION: Diagnosis and treatment of nasal bone fractures are considered simple but because of various deformity and associate injuries, treatment is not always simple and universal. Time to time, we face unsatisfied patient after treatment of nasal bone fractures. For obtaining satisfactory result, cause of injury and state of deformities and associate injuries such as nasal septal deformity should be evaluated properly and proper treatment should be applied.
Automobiles ; Collodion ; Congenital Abnormalities ; Facial Bones ; Facial Injuries ; Fractures, Bone ; Humans ; Male ; Maxilla ; Nasal Bone ; Orbit ; Osteotomy ; Physical Examination ; Retrospective Studies ; Violence

Approximately 5% of patients infected with Herpes zoster experience motor complications, such as muscle atrophy or paresis, caused by motor neuron involvement. The majority of paretic cases are associated with involvement of cranial nerves or of spinal nerves that innervate the muscles of extremities. We report the case of an 82-year-old female patient with cutaneous Herpes zoster involving the T10-11 sensory dermatomes, complicated by ipsilateral abdominal protrusion. Electromyography on the left external oblique muscle revealed marked denervation potentials, implying motor neuron involvement. One month after the onset of abdominal protrusion, the patient's motor symptoms markedly improved. Clinicians should consider the possibility of motor neuron involvement with Herpes zoster, even in cases of zoster involving thoracic branches of spinal nerves.
Aged, 80 and over ; Cranial Nerves ; Denervation ; Electromyography ; Extremities ; Female ; Herpes Zoster ; Humans ; Motor Neurons ; Muscles ; Muscular Atrophy ; Paresis ; Spinal Nerves

Approximately 5% of patients infected with Herpes zoster experience motor complications, such as muscle atrophy or paresis, caused by motor neuron involvement. The majority of paretic cases are associated with involvement of cranial nerves or of spinal nerves that innervate the muscles of extremities. We report the case of an 82-year-old female patient with cutaneous Herpes zoster involving the T10-11 sensory dermatomes, complicated by ipsilateral abdominal protrusion. Electromyography on the left external oblique muscle revealed marked denervation potentials, implying motor neuron involvement. One month after the onset of abdominal protrusion, the patient's motor symptoms markedly improved. Clinicians should consider the possibility of motor neuron involvement with Herpes zoster, even in cases of zoster involving thoracic branches of spinal nerves.
Aged, 80 and over ; Cranial Nerves ; Denervation ; Electromyography ; Extremities ; Female ; Herpes Zoster ; Humans ; Motor Neurons ; Muscles ; Muscular Atrophy ; Paresis ; Spinal Nerves