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

No abstract available.
Acidosis* ; Diagnosis*

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

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

PURPOSE: To report a case of periorbital infantile capillary hemangioma treated with propranolol as a single therapy. CASE SUMMARY: A 3-month-old girl with a growing red-purple mass on the right lower eyelid visited our clinic. The patient was diagnosed with capillary hemagioma by imaging studies. The mass had grown rapidly, and the visual axis was obscured in the follow-up. Oral propranolol therapy was initiated at a starting dose of 0.17 mg/kg at 8-hour intervals. After 2 doses, the propranolol was doubled, and after another 2 doses, the daily dose of 0.67 mg/kg divided into 3 was maintained. Three days after the initiation of the treatment, the color of the hemangioma had changed from red-purple to light purple, and the hemangioma had softened. The hemangioma continued to respond well with no side effects in the following 10 months. CONCLUSIONS: The authors suggest that oral propranolol treatment as a possibility of an effective and safe option for the vision-threatening periorbital capillary hemangioma as a single therapy.
Axis, Cervical Vertebra ; Capillaries ; Eyelids ; Follow-Up Studies ; Hemangioma ; Hemangioma, Capillary ; Humans ; Infant ; Light ; Propranolol

PURPOSE: To report a case of periorbital infantile capillary hemangioma treated with propranolol as a single therapy. CASE SUMMARY: A 3-month-old girl with a growing red-purple mass on the right lower eyelid visited our clinic. The patient was diagnosed with capillary hemagioma by imaging studies. The mass had grown rapidly, and the visual axis was obscured in the follow-up. Oral propranolol therapy was initiated at a starting dose of 0.17 mg/kg at 8-hour intervals. After 2 doses, the propranolol was doubled, and after another 2 doses, the daily dose of 0.67 mg/kg divided into 3 was maintained. Three days after the initiation of the treatment, the color of the hemangioma had changed from red-purple to light purple, and the hemangioma had softened. The hemangioma continued to respond well with no side effects in the following 10 months. CONCLUSIONS: The authors suggest that oral propranolol treatment as a possibility of an effective and safe option for the vision-threatening periorbital capillary hemangioma as a single therapy.
Axis, Cervical Vertebra ; Capillaries ; Eyelids ; Follow-Up Studies ; Hemangioma ; Hemangioma, Capillary ; Humans ; Infant ; Light ; Propranolol

Retinal detachment is a rare and unusual complication of preeclampsia. In 6,194 consecutive deliveries from January 1987 to July 1990 at the Soonchunhuang University Hospital, pregnancy induced hypertension was diagnosed in 223 patients(3.6%), and in 11 cases serous retinal detachment occured. We studied retrospectively the incidence, clinical characteristics and pathophysiology of the retinal detachment in the pregnany induced hypertension. The results were as follows: 1. Retinal detachment was serous type and mostly bilateral(90.9%). 2. Retinal detchment occured principally in primigravid(63.64%). 3. Serotts retinal detachment occured in 11 cases in 6,194 consecutive diliveries(0.18%) with 9 cases in 211 preeclampsia(4.27%) and 2 cases in 12 eclampsia(17.67%). 4. Reattachment of the retina occured at an interval of 7 to 29 days with an average interval of 14 days after delivery. 5. The fluorescein angiographic findings provide clinical evidence that retinal detachment in pregnancy induced hypertension is secondary to choroidal damage.
Choroid ; Female ; Fluorescein ; Hypertension ; Hypertension, Pregnancy-Induced ; Incidence ; Pre-Eclampsia ; Pregnancy* ; Retina ; Retinal Detachment* ; Retinaldehyde* ; Retrospective Studies

Retinal detachment is a rare and unusual complication of preeclampsia. In 6,194 consecutive deliveries from January 1987 to July 1990 at the Soonchunhuang University Hospital, pregnancy induced hypertension was diagnosed in 223 patients(3.6%), and in 11 cases serous retinal detachment occured. We studied retrospectively the incidence, clinical characteristics and pathophysiology of the retinal detachment in the pregnany induced hypertension. The results were as follows: 1. Retinal detachment was serous type and mostly bilateral(90.9%). 2. Retinal detchment occured principally in primigravid(63.64%). 3. Serotts retinal detachment occured in 11 cases in 6,194 consecutive diliveries(0.18%) with 9 cases in 211 preeclampsia(4.27%) and 2 cases in 12 eclampsia(17.67%). 4. Reattachment of the retina occured at an interval of 7 to 29 days with an average interval of 14 days after delivery. 5. The fluorescein angiographic findings provide clinical evidence that retinal detachment in pregnancy induced hypertension is secondary to choroidal damage.
Choroid ; Female ; Fluorescein ; Hypertension ; Hypertension, Pregnancy-Induced ; Incidence ; Pre-Eclampsia ; Pregnancy* ; Retina ; Retinal Detachment* ; Retinaldehyde* ; Retrospective Studies

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

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