No abstract available.
Meals* ; Measles* ; Vaccination*

PURPOSE: To prospectively evaluate the clinical results of iris-fixed phakic intraocular lens (IOL) implantation (Artisan(R) implantation) in patients with high myopia. METHODS: Eighteen eyes of 10 patients underwent Artisan(R) implantation between December 2001 and February 2003 and were followed up for more than 6 months. The study prospectively analyzed the efficacy, safety and predictability of Artisan(R) implantation based on visual acuity and refractive errors. RESULTS: The preoperative mean uncorrected visual acuity (UCVA) was 0.02, and mean spherical equivalent refraction was -9.98D. Postoperative uncorrected vision was more than 0.5 in 83.3% of the eyes at 1 month and in 100% after 3 months. Also it was more than 0.9 in 22.2% of the eyes at 1 month, in 50.0% at 3 months and in 88.9% at 6 months. The spherical equivalent refraction after surgery was within 0.5D of emmetropia in 77.8% of eyes at 1 month, in 94.4% at 3 months and in 100% at 6 months. Also it was within 1.0D of emmetropia in 94.4% at 1 month and in 100% after 3 months. Complications included temporary glare or halo in 3 eyes, transient elevation of intraocular pressure in 1 eye, and decentration of IOL due to incomplete iris-fixation in 1 eye. CONCLUSIONS: Because of its good visual results and rare complications, the Artisan(R) implantation may be an effective surgical procedure for patients who cannot undergo laser in situ keratomileusis (LASIK).
Emmetropia ; Glare ; Humans ; Intraocular Pressure ; Keratomileusis, Laser In Situ ; Myopia ; Phakic Intraocular Lenses ; Prospective Studies ; Refractive Errors ; Visual Acuity

PURPOSE: The authors report their experience with four cases of paralytic exotropia from a pit viper snakebite, accompanied with a literature review. METHODS: Four patients (two males and two females) visited the emergency room in the hospital with symptoms including diplopia, limitation of eye movement, exotropia, and blepharoptosis, after being bitten by a presumed pit viper, and were treated by antivenom. RESULTS: No visual disturbance was observed in the first examination, while limitation of adduction was found in four cases in the ocular movement test. As to the type of tropia, three patients showed intermittent exotropia and the other showed exotropia. The angle of strabismus in the distance was 20~30 prism diopters (PD) while that in the near was 18~35 PD. Two cases were accompanied with blepharoptosis. Except one case which was unavailable for follow-up observation, three cases became normal in diplopia, blepharoptosis, and limitation of ocular movement between the 4th and 11th day after the snakebite. CONCLUSIONS: Neurotoxicity induced by a pit viper snakebite is rare. However, neurotoxicity including strabismus and blepharoptosis can occur because extraocular muscles have a higher ratio of nerve fibers to the extraocular muscle fibers compared with skeletal muscles.
Blepharoptosis ; Diplopia ; Emergency Service, Hospital ; Exotropia* ; Eye Movements ; Follow-Up Studies ; Humans ; Male ; Muscle, Skeletal ; Muscles ; Nerve Fibers ; Snake Bites* ; Strabismus

Leiomyoma is a tumor rarely occurring in the nose and the paranasal sinus. It constitutes about 1% of all benign tumors arising in the head and neck area. This is probably due to the paucity of smooth muscle in the nose. We experienced a case of leiomyoma originating in the right side of the nasal septum in a 50-year- man. It was successfully removed by endoscopic surgery, and we report this case with literature.
Head ; Leiomyoma* ; Muscle, Smooth ; Nasal Septum* ; Neck ; Nose

PURPOSE: The aim of this study was to evaluate alterations of papilla dimensions after orthodontic closure of the diastema between maxillary central incisors. METHODS: Sixty patients who had a visible diastema between maxillary central incisors that had been closed by orthodontic approximation were selected for this study. Various papilla dimensions were assessed on clinical photographs and study models before the orthodontic treatment and at the follow-up examination after closure of the diastema. Influences of the variables assessed before orthodontic treatment on the alterations of papilla height (PH) and papilla base thickness (PBT) were evaluated by univariate regression analysis. To analyze potential influences of the 3-dimensional papilla dimensions before orthodontic treatment on the alterations of PH and PBT, a multiple regression model was formulated including the 3-dimensional papilla dimensions as predictor variables. RESULTS: On average, PH decreased by 0.80 mm and PBT increased after orthodontic closure of the diastema (P<0.01). Univariate regression analysis revealed that the PH (P=0.002) and PBT (P=0.047) before orthodontic treatment influenced the alteration of PH. With respect to the alteration of PBT, the diastema width (P=0.045) and PBT (P=0.000) were found to be influential factors. PBT before the orthodontic treatment significantly influenced the alteration of PBT in the multiple regression model. CONCLUSIONS: PH decreased but PBT increased after orthodontic closure of the diastema. The papilla dimensions before orthodontic treatment influenced the alterations of PH and PBT after closure of the diastema. The PBT increased more when the diastema width before the orthodontic treatment was larger.
Diastema* ; Esthetics, Dental ; Follow-Up Studies ; Gingiva ; Humans ; Hydrogen-Ion Concentration ; Incisor ; Longitudinal Studies* ; Orthodontic Space Closure ; Retrospective Studies*

OBJECTIVE: The purpose of this study was to evaluate the efficacy of a transforaminal suprapedicular approach, semi-rigid flexible curved probe, and 3-dimensional reconstruction computed tomography (3D-CT) with discogram in the endoscopic treatment of non-contained lumbar disc herniations. METHODS: The subjects were 153 patients with difficult, non-contained lumbar disc herniations undergoing endoscopic treatment. The types of herniation were as follows : extraforaminal, 17 patients; foraminal, 21 patients; high grade migration, 59 patients; and high canal compromise, 56 patients. To overcome the difficulties in endoscopic treatment, the anatomic structures were analyzed by 3D reconstruction CT and the high grade disc was extracted using a semi-rigid flexible curved probe and a transforaminal suprapedicular approach. RESULTS: The mean follow-up was 18.3 months. The mean visual analogue scale (VAS) of the patients prior to surgery was 9.48, and the mean postoperative VAS was 1.63. According to Macnab's criteria, 145 patients had excellent and good results, and thus satisfactory results were obtained in 94.77% cases. CONCLUSION: In a posterolateral endoscopic lumbar discectomy, the difficult, non-contained disc is considered to be the most important factor impeding the success of surgery. By applying a semi-rigid flexible curved probe and using a transforaminal suprapedicular approach, good surgical results can be obtained, even in high grade, non-contained disc herniations.
Diskectomy ; Diskectomy, Percutaneous ; Follow-Up Studies ; Humans

PURPOSE: We encountered a rare case of optic neuritis that developed in a sphenoid sinusitis. This case has not been reported at any of the Korean Ophthalmological Society meetings. CASE SUMMARY: A 12-year-old boy with swollen optic disc was diagnosed with optic neuritis secondary to sphenoid sinusitis, through orbit MRI (magnetic resonance imaging) and paranasal sinus CT (computed tomography). We observed the recovery of visual acuity and the improvement of papilledema after treatment. In the initial examination, the BCVA (best-corrected visual acuity) of the right eye was only hand movement. Papilledema was detected by ophthalmoscopy. Orbit MRI and paranasal sinus CT were then performed, which revealed that sphenoid sinusitis had invaded the right optic nerve. Treatment included the use of antibiotics, systemic steroid therapy, and endoscopic sinus surgery. One month after treatment, the BCVA of the right eye was 1.0 and the papilla of right eye had a normal ophthalmoscopic finding. CONCLUSIONS: Sphenoid sinusitis can be a cause of optic neuritis. The treatment of optic neuritis caused by paranasal sinusitis must include antibiotics use or endoscopic sinus surgery to remove the sinus inflammation as well as high dose steroid therapy.
Anti-Bacterial Agents ; Child ; Hand ; Humans ; Inflammation ; Magnetic Resonance Imaging ; Male ; Ophthalmoscopy ; Optic Nerve ; Optic Neuritis* ; Orbit ; Papilledema ; Sinusitis ; Sphenoid Sinus* ; Sphenoid Sinusitis* ; Visual Acuity

BACKGROUND AND OBJECTIVES: A free-beam-type CO₂ laser, which use a micromanipulator mounted on a microscope as the delivery system, has the merit of not being affected by hand tremor at the time of shooting. However, this delivery system has several disadvantages, including a restricted operation range and a risk of incorrect focusing. A fiber-type CO₂ laser uses a hand-held delivery system and has the opposite merits and demerits. We compared the results of stapes surgery with free-beam and fiber type delivery systems. SUBJECTS AND METHODS: The study enrolled 36 patients who underwent stapedotomy with free-beam- (n=26) or fiber- (n=10) type CO₂ lasers. The air-bone (AB) gap closure, bone conduction (BC) change, and operating time were evaluated. The AB gap closure was calculated by subtracting the preoperative BC thresholds from the postoperative air conduction thresholds. The BC change was calculated by subtracting the postoperative BC thresholds from the preoperative BC thresholds. RESULTS: The mean operating time was significantly (p=0.035) shorter in the fiber-type group (72.5±8.2 min) than in the free-beam-type group (80.5±11.4 min). The mean AB gap closure did not differ significantly (p=0.297) between the free-beamand fiber-type groups (5.8±10.1 and 1.4±6.8 dB, respectively). The mean BC change did not differ significantly (p=0.873) between the free-beam- and fiber-type groups (2.4±6.9 and 2.8±5.3 dB, respectively). The hearing outcomes did not differ significantly between the two groups. CONCLUSIONS: Operating times were significantly shorter using the fiber-type CO₂ laser, while hearing outcomes did not differ significantly between the two groups.
Bone Conduction ; Hand ; Hearing ; Humans ; Otosclerosis ; Stapes Surgery* ; Stapes* ; Tremor

OBJECTIVE: To establish management strategy and to improve outcome of callosal arteriovenous malformations(AVMs), forty-six consecutive cases hospitalized from 1984 to 2001 are analyzed. METHODS: Clinical and radiologic files were reviewed. Average follow-up period was 20.3 months in microsurgery group, and 28.2 months in radiosurgery group. RESULTS: The resection rate of microsurgery was considered total in 12 patients(85.7% ), subtotal 2(14.3%). The final clinical outcome of microsurgery was good in 13 patients(92.8%), fair in 1(7.2%). One patient with splenial lesion had postoperative disconnection syndrome. Initial insults and hemodynamic complications were the major cause of an unfavorable outcome. In radiosurgery the complete regression of nidus was considered in 16 patients(51.6%), partial shrinkage in 13(41.9%), and no response in 2(6.5%). The clinical outcome of radiosurgery was good in 26 patients(83.9%), fair in 3(9.75%), and poor in 2(6.5%). Rebleeding during the latency period(3 patients), radiation necrosis(1 patients) and initial insults(1 patients) were the major cause of postradiosurgery morbidity. Rebleeding during the latency period occurred in 3 patients(9.7%). Two lesions were in the splenium, and one lesion in the body of corpus callosum. All lesions were larger than 3cm in diameter. Two of them occurred during the second year, and the rest one during the third year of latency period. CONCLUSION: Microsurgery, which eliminates the risk of bleeding immediately, is referred for callosal AVMs. Radiosurgery is another effective treatment modality for splenial lesions with large bridging veins that interfere with microsurgical approach, and combined endovascular treatment would be strongly recommended for the splenial lesions larger than 3cm in diameter that has higher risk of hemorrhage during the latency period.
Arteriovenous Malformations* ; Corpus Callosum ; Follow-Up Studies ; Hemodynamics ; Hemorrhage ; Humans ; Latency Period (Psychology) ; Microsurgery ; Radiosurgery ; Veins

Postoperative pancreatic fistula (POPF) combined with postoperative fluid collection, bleeding and abscess formation is one of the most critical morbidities after distal pancreatectomy or pancreaticoduodenectomy. Percutaneous catheter drainage has been commonly used for managing for the postoperative management of abnormal fluid collection. Removal of the catheter is rarely associated with occurrence of life-threatening complication such as serious liver damage. Herein, we report a case of unexpected fatal liver injury complicated by percutaneous catheter drainage treatment after distal pancreatosplenectomy in a patient with pancreatic cancer. We suggest that prudent decision for timing of catheter removal and meticulous care during procedure can reduce the possibility of major liver injury in patients with percutaneous transhepatic catheter drainage.
Abscess ; Catheters* ; Drainage* ; Hemorrhage ; Humans ; Liver* ; Pancreatectomy ; Pancreatic Fistula ; Pancreatic Neoplasms* ; Pancreaticoduodenectomy