The authors have experienced two cases of general anesthesia for operation of congenital tracheo-esophageal fistula and the results were obtained as follows. 1. The anesthetic agent should be selected as considering of lesser irritating to respiratory system and smaller amount of tracheobronchial secretion. 2. The infant circle absorber system has been preferred to the Ayres T-piece apparatus, because maintaining normal body temperature and removal of carbon dioxide easily. 3. Removal of secretion from trreheobronchial tree, intermittent positive pressure breathing, maintaining normal body temperature and humidity were thought to be necessary for the prevention and treatment of postogerative pneumonia or atelectasis.
Anesthesia, General* ; Body Temperature ; Carbon Dioxide ; Esophageal Atresia* ; Fistula* ; Humans ; Humidity ; Infant ; Intermittent Positive-Pressure Breathing ; Pneumonia ; Pulmonary Atelectasis ; Respiratory System

STATEMENT OF PROBLEM & PURPOSE: The purpose of this study was to investigate the effect of a mouth guard material properties on the skull and brain when they were under impact loads on mandible. MATERIAL AND METHODS: Two customized mouth protectors having different material propeerst ieach other were made for a female Korean who had no history of brain trauma, no cerebral diseases, nomal occlusion and natural dentition. The 3D finite element model of human skull and brain scanned by means of computed tomography was constructed. The FEM model of head was composed of 407,825 elements and 82,138 nodes, including skull, brain, maxilla, mandible, articular disc, teeth and mouth guard. The stress concentrations on maxillary teeth, maxilla and skull with two mouth guards were evaluated under oblique impact load of 800N onto mandibular 3 loading points for 0.1sec. And the brain relative displacement was compared in two different mouth guard materials under same condition. RESULT AND CONCLUSION: The results were as follows; 1. In comparison of von Mises stress on maxillary teeth, a soft mouth guard material had significantly lower stress values on measuring point than a hard mouth protector materials (P < .05). 2. In comparison of von Mises stress on maxilla and skull, A soft mouth protector material had significantly lower stress values on measuring point than a hard mouth protector materials (P < .05). 3. For impact loads on mandible, there were more stress concentrated area on maxilla and skull with hard mouth guard than soft with mouth protector. 4. For impact loads on mandible, brain relative displacement had little relation with mouth guard material properties. In results of this study, soft mouth guard materials were superior to hard mouth guard materials for mandible impact loads for prevention of sports injuries. Although the results of this study were not enough to figure out the roles of needed mouth guard material properties for a human head, we got some knowledge of the pattern about stress concentration and distribution on maxilla and skull for impact loads with soft or hard mouth protector. More studies are needed to substantiate the relationship between the mouth guard materials and sports injuries.
Athletic Injuries ; Brain ; Brain Injuries ; Dentition ; Displacement (Psychology) ; Female ; Head ; Humans ; Mandible ; Maxilla ; Mouth ; Mouth Protectors ; Skull ; Tooth

No abstract available.
Chemokine CCL2* ; Endometriosis* ; Endometrium* ; Female ; Humans ; Monocytes*

Cerebral rete mirabile, as an entity of particular disease, have been reported by many authors with various discussion in opinion. But, until now, despite of good agreement of its angiographic opinions, its exact pathogenesis and etiology has not been established. Authors have been experienced a pair of cerebral rete mirabile in identical twin girls, which were confirmed by cerebral angiography.
Cerebral Angiography ; Female ; Humans ; Twins, Monozygotic*

PURPOSE: The purpose of this study was to assess the usefulness of CT angiography(CTA) with spiral CT in evaluation of intracranial vascular lesions. MATERIALS AND METHODS: CTA and conventional angiography(CA) were performed in 22 patients with suspected intracranial vascular lesion. Nine patients had 10 aneurysms and 2 patients had arteriovenous malformation(AVM)s, while the remaining 11 patients had no vascular lesion. Twenty seconds after beginning injection of contrast media(100 mL with use of a power injector at the rate of 3 mL/sec), CT scanning(30-second continuous exposure and 60-mm length) was performed with a table speed of 2mm/sec and a section thickness of 2mm. The starting point was selected at the floor of the sella turcica. The resulting data were reformatted by MIP and SSD after reconstruction of 1 mm interval. For aneurysm, its size, shape, direction, neck and the relationship to adjacent vessels were compared to CA. RESULTS: The aneurysm diameter was ranged between 3mm and 20mm and all aneurysms were clearly visualized with CTA. CTA findings of the size, shape, direction, and neck of aneurysms and the relationship between aneurysm and adjacent vessels were well correlated with CA. In one case of aneurysm, calcification of the aneurysm wall was demonstrated on CTA. In one case of AVM, the nidus and its arterial supply and venous drainage were well visualized. In the other case of AVM, however, the feeding artery of AVM was not demonstrated on CTA(it was also unclear on CA). CONCLUSION: CTA with spiral CT may be useful in the evaluation of intracranial vascular lesion and valuable as a screening test for intracranial aneurysm.
Aneurysm ; Angiography* ; Arteries ; Drainage ; Humans ; Intracranial Aneurysm ; Mass Screening ; Neck ; Sella Turcica ; Silver Sulfadiazine ; Tomography, Spiral Computed*

Cerebral vasospasm is one of the most serious complication after subarachnoid hemorrhage due to aneurysmal rupture. To date, the treatment of vasospasm remains unsatisfactory in a large numbers of cases in spite of recent therapeutic advances. Prompt diagnosis of this complication, before the establishment of lasting ischemic damage, should obviously improve the results of treatment. The possibility of predicting which patients will develop vasospasm, constitutes a further advance in the management of this complication. In this study, the value of the computed tomographic scan for the prediction of vasospasm was investigated in a consecutive series of 67 patients submitted to computed tomography within 7 days of the most recent subarachnoid hemorrhage.
Aneurysm* ; Diagnosis ; Humans ; Rupture* ; Subarachnoid Hemorrhage* ; Vasospasm, Intracranial*

PURPOSE: The aim of this study is to analysis of survival and recurrence rates of the uterine cervical carcinoma patients whom received the radiation therapy respectively. The prognostic factors, such as Papanicolaou (Pap) smear, carcinoembriogenic antigen (CEA) and squamous cell carcinoma (SCC) antigen has been studied. METHODS AND MATERIALS: From January 1981 to December 1998, eight-hundred twenty-seven uterine cervical cancer patients were treated with radiation therapy. All of the patients were divided into two groups : the radiation therapy only (521 patients) group and the postoperative radiation therapy (326 patients) group. The age, treatment modality, clinical stage, histopathology, recurrence, follow-up Pap smears, CEA and SCC antigen were used as parameters for the evaluation. The prognostic factors such as survival and recurrence rates were performed with the Kaplan-Meier method and the Cox hazard model, respectively. Median follow-up was 38.6 months. RESULTS: On the radiation therapy only group, 314 patients (60%) achieved complete response (CR), 47 patients (9%) showed local recurrence (LR), 78 patients (15%) developed distant metastasis (DM). On the postoperative radiation therapy group, showed 276 patients (85%) CR, 8 patients (2%) LR, 37 patients (11%) DM. The 5-year survival and recurrence rates was evaluated for all parameters. The statistically significant factors for the survival rate in univariate analysis were clinical stage (p=0.0001), treatment modality ( p=0.0010), recurrence ( p=0.0001), Pap smear ( p=0.0329), CEA ( p=0.0001) and SCC antigen ( p= 0.0001). CONCLUSION: This study indicated that after treatment, the follow-up studies of Pap smear, CEA and SCC antigen were significant parameter and prediction factors for the survival and recurrence of the uterine cervical carcinoma.
Carcinoma, Squamous Cell ; Follow-Up Studies ; Humans ; Neoplasm Metastasis ; Proportional Hazards Models ; Recurrence ; Survival Rate ; Uterine Cervical Neoplasms*

No abstract available.
Erythromycin* ; Gastric Emptying* ; Gastroparesis*

PURPOSE: Maxillary sinus cancers are usually locally advanced, and involve the structures around sinus, but the regional lymphatic spread is uncommon. Therefore, the local control of these cancers is important for their cure. We reviewed our experience of 55 patients with squamous cell carcinomas of the maxillary sinus, treated with radiation therapy, and looked for the role of radiation therapy in maxillary sinus cancers. MATERIALS AND METHODS: Between November 1982 and October 1999, 55 patients with squamous cell carcinomas of the maxillary sinus underwent either radiation therapy only, or combined with surgery or with concurrent chemoradiation therapy. All patients were restaged according to the 1997 AJCC staging systems. The T classifications of the tumors of the patients were as follows:1.8% (1/55) for T2, 81.8% (45/55) for T3 and 16.4% (9/55) for T4. Thirteen patients were diagnosed with lymph node involvement. With the surgical procedures, 12 patients were managed by biopsy only, 21 were resected by FESS (functional endoscopic sinus surgery) and 22 by partial/medial/total maxillectomies. The details of the treatments were as follows:8 patients were treated with radiation therapy only, 17 with a combination of FESS and radiation therapy, 22 with a combination of a maxillectomy and radiation therapy, 4 with a combination of preoperative radiation therapy and surgery, and 4 with concurrent chemoradiation therapy. The mean follow-up for all patients was 25 months, ranging from 2.8 to 125 months. RESULTS: The 4-year local control and survival rates for all patients were 45.5 and 33.3%, respectively. The 4-year local control and survival rates, due to the extent of surgery, were as follows:32.1, and 21.4 % for biopsy; 41.9, and 31.7% for FESS; and 56.8, and 52.7% for maxillectomy, respectively. Twenty-nine (52.7%) patients were not cured, and of these 29 patients, 23 (79.3%) patients had a local recurrence following treatment. CONCLUSION: This study has shown that the major failure sites following treatment to be the local regions, and that the completeness of surgery was important for improving the local control and survival of patients with squamous cell carcinoma of the maxillary sinus.
Biopsy ; Carcinoma, Squamous Cell* ; Classification ; Follow-Up Studies ; Humans ; Lymph Nodes ; Maxillary Sinus Neoplasms ; Maxillary Sinus* ; Recurrence ; Survival Rate

Purpose: To confirm that the phaco chop method using an illuminated chopper (iChopper; Oculight, Seongnam, Korea) can reduce cataract surgery complications, and that even beginners can safely and effectively perform phaco chop. Methods: We retrospectively analyzed the medical records of the first 30 phaco chop cases using illuminated chopper of four cataract surgeons. Four ophthalmologists had a variety of empirical backgrounds, from those who have experienced more than 10,000 cataract surgery, to beginners who have experienced 20 cataract surgery. Results: Of the total 120 eyes, two eyes (1.67%) had posterior capsule rupture. The chopping method was changed from phaco chop to stop and chop in three eyes (2.5%) including one eye with brown cataract with pseudoexofoliation syndrome and two eyes with nuclear opacity grade ≥5. Conclusions The rates of posterior capsule rupture of phaco chop using an illuminated chopper were very low in four surgeons with various experiences and who became proficient shortly in phaco chop.