No abstract available.
Acidosis* ; Diagnosis*

No abstract available.
Child* ; Humans ; Prone Position* ; Thoracotomy*

PURPOSE: To evaluate the degree of contrast enhancement of intracranial tumors on delayed (6-8min.) MR imaging after administration of Gd-DTPA. MATERIALS AND METHODS: Both immediate and delayed post-contrast MR imagings were studied prospectively in 35 patients. with brain tumors (11 gliomas, 6 meningiomas, 4 neurinomas, 5 parencymal metastases, 5 hemangioblastoma, 4 others) at either 0.5 T or 2.0 T unit. After precontrast TI-, proton-density, and T2-weighted spin echo images were obtained, each patient underwent Tl-weighted imaging immediately following infusion of 0.1 mmol/Kg of Gd-DTPA. Subsequently, the second postcontrast Tl-weighted images were obtained with no additional injection of the contrast media. Time-interval between the postcontrast immediate and the delayed images was approximately 6-8 minutes. Degree of contrast enhancement of the lesions was assessed both visually and quantitatively. For quantitative study, contrast enhancement ratio(CER) of tumors was calculated in both immediate and delayed post-contrast images. RESULTS: There was stronger visual enhancement in 7 of 11 cases with gliomas and 3 of 5 cases with parenchymal metastasis on delayed images when compared with immediate images, whereas all 10 cases of extraaxial tumors(meningiomas and neurinomas) showed decreased enhancement on delayed images. Quantitatively, mean CERs of gliomas and metastases were higher on delayed study than on immediate study by 20. 5% and 49.2%, respectively. Extraaxial tumors showed decrease of CER on delayed study by 19.7% as compared with that of immediate study. Hemangioblastomas showed visually poor enhancement on delayed image in 4 cases and equal enhancement on both immediate and delayed images in remaining one case, and quantitatively demonstrated decrease of CER on delayed study by 15.4%. CONCLUSION: Since there was more conspicuous contrast enhancement in many intraaxial tumors such as gliomas and metastases on 6-8 minutes delayed post-contrast MR study, the delayed post-contrast study may be needed in some intraaxial tumors for their characterization, and may also be helpful for the differential diagnosis between intraaxial and extraaxial tumors.
Brain Neoplasms* ; Brain* ; Contrast Media ; Diagnosis, Differential ; Gadolinium DTPA ; Glioma ; Hemangioblastoma ; Humans ; Magnetic Resonance Imaging* ; Meningioma ; Neoplasm Metastasis ; Neurilemmoma ; Prospective Studies

No abstract available.
Hemorrhagic Fever with Renal Syndrome* ; Humans ; Proteinuria*

The Purpose of this article is to present a clinical case report for palateless complete denture. Despite the contravacy of palatal uncoverage in upper complete denture, palateless complete denture has some merits for upper edentulous patient. Following the uncovering of the palatal portion, the patient became easy to talk and restored the lost good tastes. He is happy despite of the decrease of the retention of the upper complete denture. Palateless complete denture is a compatible alternative for upper edentulous patients in cases of gagging, large palatal torus and restoring the lost good tastes. The clinical points are as follows : 1. The remaning alveolar ridge should be ovoid and have enough width and height for the support and retention. 2. The patient must have strong wish to the palateless complete denture. 3. Palatal beading made on the palatal peripheral border give good border sealing of the palatal flange and minimaized the prominence of the denture flange. 4. The peripheral border of the palatal flange should be reduced as thin as possible for more comfort. 5. Upper artificial posterior teeth should be arranged over the alveolar ridge crest and inner incline of the buccal cusp relieved for denture stability while chewing. 6. For stability of palateless complete denture, bilateral balanced occlusion should be sttained. Palateless complete denture will restore the lost good tastes and more comfortable and physiologic to upper edentulous patients and a good alternative to full palatal coverage complete denture in the properly selected cases.
Alveolar Process ; Denture Retention ; Denture, Complete* ; Dentures ; Gagging ; Humans ; Mastication ; Tooth

In 1968, Cairns introduced the trabeculectomy operation and reported it to be a highly succesful form of surgery for the reduction of intraocular pressure in primary open-angle glaucoma. At the present time trabeculectomy is the treatment of choice for patients with primary open-angle glaucoma requiring surgery. In the period January, 1975. to March, 1978, 72 eyes of chronic simple, chronic angle-closure, secondary, and developmental glaucoma were operated by trabeculectomy and/or trabeculotomy in Busan National University Hospital. Follow-up study was achieved in 28 eyes(chronic simple glaucoms 17, chronic angle-closure glaucoma 4, secondary glaucoma 3, and developmental 4) of 72 eyes, and the duration of follow-up ranged from 1 year to 2 and 1/2 years(average 18 months). Our operative procedure, which was different from others, was made with 1/3 thickness of scleral flap, and made 2 knots with 8-0 nylon placed in free edge of scleral flap and 1/3 of all cases was not placed scleral flap sutures. We achieved success in 23 eyes (82.1% )of 28 eyes of all types of glaucoma and 14 eyes (82.4%) of 17 eyes of openangle glaucoma. The control of intraocular pressure in interrelationship to formation of filtering bleb was statistically significance(x2(0.05, 1)=3.84>5.46), and to scleral flap suture was not significance(x2(0,05, 1)=3.84>0.39). The complications during and after operation were delayed formation of anterior chamber, hyphema, posterior synechia, vitreous prolapse, choroidal detachment, and lens and vitreous opacity in order.
Anterior Chamber ; Blister ; Busan ; Choroid ; Follow-Up Studies* ; Glaucoma ; Glaucoma, Angle-Closure ; Glaucoma, Open-Angle ; Humans ; Hyphema ; Intraocular Pressure ; Nylons ; Prolapse ; Surgical Procedures, Operative ; Sutures ; Trabeculectomy*

Submerged implants require secondary surgical uncovering of implants after healing period of 3 - 6 months. In surgical methods, there are surgical scalpel, tissue punch, electro-surgical, and laser-used uncovering, and laser-used uncovering, and so forth. The objectives of this study are investigation and assessment of 1) thermal change in clinical application for uncovering of HA-coated implant and pure titanium implant irradiated by pulsed Nd-YAG. CO2, and Er-YAG laser. 2) surface change of cover screws after irradiation using laser energy. The temperature of apex & side wall of implants were recorded at 10sec, 20sec, 30sec after 30sec irradiation to implant healing screw; 1) pulsed Nd-YAG laser; 2W, 20pps, contact mode 2) CO2 laser; water-infused & non-water infused state, 2.5-3.5W, contibuous mode, noncontact mode 3) CO2 laser; non-water-infused state, 3W, superpulse, noncontact mode 4) Er-YAG laser; (1) non-water infused state, 10pps, 60mj, contact mode (2) water-infused state, 10pps, 60mj, 80mj, 101mj, contact mode According to the results of this study, pulsed Nd-YAG laser is not indicated because of increase thermal change and pitting of metal surface of implant cover screw. By contrast, CO2 laser & Er-YAG laser are presumed to indicate because of narrow range of thermal change & near abscence of thermal damage of metal surface. Dental laser is thought to be much helpful to surgical procedure when it is used as optimal power and time condition considering characteristics and indications of each laser. Further research is needed to verify that these techniques are safe and beneficial to implant success.
Lasers, Gas ; Lasers, Solid-State ; Titanium

PURPOSE: To compare the clinical features according to the presence of anisometropia in refractive accommodative esotropia patients. METHODS: Forty-five refractive accommodative esotropia patients were divided into 2 groups : patients who had anisometropia of more than 1.00D (anisometropia group), and patients who had anisometropia of less than 1.00D (isometropia group). Age at onset, age when glasses were first worn, the initial and final angle of esotropia with or without hyperopic correction, the recovery time to orthophoria after hyperopic correction, the degree of stereoacuity and the frequency of amblyopia, the prevalence of deterioration, and the ratio of accommodative-convergence to accommodation were retrospectively reviewed. RESULTS: There were no statistical differences between the 2 groups in the frequency of amblyopia, the prevalence of deterioration, and the ratio of accommodative-convergence to accommodation at the initial and final visit. The angles of deviation with hyperopic correction at the 1-month follow-up visit in the anisometropia group and the isometropia group were 8.80 +/- 5.63 PD for near, 8.67 +/- 5.42 PD for distance, and 4.54 +/- 6.59 PD for near 5.19 +/- 6.7 PD for distance, respectively; the difference was statistically significant (p = 0.042). The recovery time to orthophoria after hyperopic correction in patients associated with anisometropia was 2.20 +/- 1.01 months, significantly longer than 1.47 +/- 0.86 months in patients associated with isometropia (p = 0.017). CONCLUSIONS: In refractive accommodative esotropia patients associated with anisometropia, the recovery time to orthophoria after hyperopic correction was significantly prolonged but there were no statistical differences in other clinical manifestations.
Amblyopia ; Anisometropia ; Esotropia ; Eyeglasses ; Follow-Up Studies ; Glass ; Humans ; Prevalence ; Retrospective Studies

The purpose of this article is to present the clinical and laboratory procedures for single tooth restoration using "Combination Implant Crown". It is cemented on implant abutment and that abutment is screw-retained over implant body. This type of implant restorations has the advantages of cement-retained restoration while being antirotational and retrievable. And, more esthetic and functional result can be achieved by minimizing the size of access hole. The results were as follow : 1. Preparation of abutment below the cuffline should be avoided 2. Axial reduction of implant abutment should not be excessive because it may weaken the abutment 3. More esthetical and functional occlusal surface was achieved with a minimal access hole which is slightly larger than the diameter of hex driver to enable future total retrievability. 4. Combination Implant Crown has the advantages of both the cement-retained and screw-retained type implant restoration. 5. Cementation between implant crown and abutment reduces screw loosening through even force distribution.
Cementation ; Crowns* ; Tooth*

No abstract available.
Carcinoma, Renal Cell*