No abstract available.
Carcinoma, Bronchogenic*

No abstract available.
Rheumatic Diseases* ; Spondylarthropathies

Bond strength of luting cements to dentin is a critical consideration for success of complete cast crowns. This study was performed to evaluate the relationship between surface characteristics of teeth prepared for complete cast crowns and retention of cemented restorations. Eighty artificial crowns were cast for standardized complete crown tooth preparations accomplished with the use of a special device on recently extracted human teeth. Coarse diamond(#102R, Shofu) and superfine finishing diamond(#SF102R, Shofu) burs of similar shape were used. Crowns in each group were randomly subdivided into four subgroups of 10 for luting cements selected for this study: zinc phosphate cement (FLECK'S), polycarboxylate cement (Poly-F), reinforced glass ionomer cement (Fuji PLUS), and adhesive resin cement (Panavia 21). Retention was evaluated by measuring the tensile load required to dislodge the artificial crown from tooth preparations with an Instron testing machine, and analysed by one-way ANOVA and Student's t-test. The obtained results were as follows ; 1. When tooth preparation was done with coarse diamond bur, retentive force was diminished in order of Panavia 21, Fuji PLUS, FLECK'S, and Poly-F. Retentive forces showed the significant difference between Fuji PLUS group and FLECK'S group(p<0.001). 2. When tooth preparation was done with superfine diamond bur, retentive force was diminished in order of Fuji PLUS, Panavia 21, FLECK'S and Poly-F. Retentive forces showed the significant difference between Panavia 21 group and FLECK'S group(p<0.001). 3. Retentive force in coarse tooth surfaces was significantly higher than that in superfine tooth surface with all luting cements(p<0.001), and cement residues were almost retained with in the cast crown in all groups.
Adhesives ; Crowns* ; Dental Instruments ; Dentin ; Glass Ionomer Cements ; Humans ; Polycarboxylate Cement ; Resin Cements ; Tooth Preparation ; Tooth* ; Zinc Phosphate Cement

PURPOSE: To evaluate the characteristic CT findings of neuroblastoma, we studied neurobalstomas. METHODS AND MATERIALS: We analysed CT findings of available 25 cases among pathologically proved 51 neurobalstomas from Jan. 1983 to Sept. 1990. RESULTS: The most frequent site of origin is adrenl gland (40%) and the second is retroperitoneum (32%) and the third ismediastinum (16%). Characteristic CT findings are as follows:Calcifications within the tumor is detected in 86% of abdominal neuroblastomas and 50% of mediastinal origin. Hemorrhagic and necrotic changes within the tumor is noted at 86% in the tumor of abdominal origin and 25% in mediastinal neuroblastomas. Contrast enhanced study showed frequently septated enhanced appearance with/without solid contrast enhancement. Encasements of major great vessels such as aorta and IVC with/without displacement by metastatic lymphnodes or tumor are frequently seen in 90% of abdominal neuroblastomas. Multiple lymphadenopathy are detected in 95% of abdominal neurobalstomas and 25% of mediastinal neuroblastomas. The most common organ of contiguous direct invasion is kidney in 6 cases and the next one is liver but intraspinal canal invasion is also noted in 2 cases. CONCLUSION: We concluded that diagnosis of neuroblastoma would be easily obtained in masses of pediatric group from recognition of above characteristic findings.
Aorta ; Diagnosis ; Kidney ; Liver ; Lymphatic Diseases ; Neuroblastoma*

A retrospective analysis of 108 patients who had undergone transurethral prostatectomy for benign prostatic hyperplasia between January 1988 and December 1992 was performed to evaluate risk factors influencing intraoperative and postoperative morbidity and mortality. Of 108 patients complications occurred in 32 cases, with the morbidity rate of 29.6% but no death occurred. The most common postoperative complication was bleeding in 9 cases(8.3%) followed by incontinence in 7 cases(6.5%), capsular perforation in 4 cases(3.7%), failure to void in 4 cases(3.7%) and urethral stricture in 4 cases(3.7%). Risk factors which increased the morbidity of transurethral prostatectomy were age greater than 75 years and the presence of associated medical disease(p<0.05) but a resection time of more than 90 minutes, weight of resected tissue more than 30 gram and amounts of irrigating solution of more than 20 L did not increase the postoperative morbidity significantly. In conclusion, meticulous preoperative and postoperative cares are necessary because poor general condition increase the postoperative complications and long-term, prospective randomized studies are required to evaluate risk factors influencing postoperative morbidity after transurethral prostatectomy.
Hemorrhage ; Humans ; Mortality ; Postoperative Complications ; Prostatic Hyperplasia* ; Retrospective Studies ; Risk Factors* ; Transurethral Resection of Prostate* ; Urethral Stricture

PURPOSE: Poland's syndrome encompasses a constellation of congenital chest wall, breast, and upper extremity deformities. We would like to present several techniques, which may be combined if necessary, used to treat the forms involving both the breast and chest wall according to the degree of deformity. METHODS: In a retrospective series of 9 patients(3 men and 6 women), we report our experience with reconstructing breast and chest contour deformities associated with Poland syndrome. We recorded their age, gender, the surgical techniques, and the grade in Poland's syndrome according to the classification of Foucras. RESULTS: The breast and chest wall deformities associated with Poland syndrome can be treated in individualized fashion according to the classification of Foucras. In case of 3 male patients with gradeI, II, the latissimus dorsi muscle pedicled flap improved the chest contour deformity. 3 female patients with grade II underwent the latissimus dorsi muscle pedicled flap with breast implant. 2 female patients with gradeIunderwent breast reconstruction with breast implant and fat injection each other. One female patient with severe chest wall deformity(grade III) underwent breast reconstruction using the free TRAM flap. All patients were satisfied with the results without specific complications. CONCLUSION: The Individualized correction for this syndrome according to the degree of patient's deformity and preference made the overall satisfaction of the patients high.
Breast ; Breast Implants ; Congenital Abnormalities ; Female ; Humans ; Male ; Mammaplasty ; Muscles ; Poland Syndrome ; Retrospective Studies ; Surgical Flaps ; Thoracic Wall ; Thorax ; Upper Extremity

PURPOSE: Secondary breast reconstruction is defined as a whole reconstructive procedure to correct complications and to improve the aesthetics when a patient is dissatisfied with her initial reconstruction. We would like to present these particular procedures on previously failed breast reconstruction with analysis of unsatisfactory results. METHODS: From June 2002 to August 2008, we performed secondary breast reconstructions for 10 patients with failed breasts. Six patients with implant failure underwent secondary breast reconstructions using free TRAM flaps after the removal of implants. Two patients with partial loss of pedicled TRAM flaps underwent secondary breast reconstruction using Latissimus Dorsi flaps. Two patients with 1 total loss of free TRAM flap and 1 extensive fat necrosis underwent secondary breast reconstruction using implants. RESULTS: The average age of the patients were 36.4 years (26 - 47 years). All flaps survived completely and had relatively good aesthetic results in free TRAM cases. There was breast asymmetry in one patient using cohesive gell implants in total loss of previously free TRAM patient, which was corrected by exchanging the implants and placing dermofat grafts. CONCLUSION: Secondary breast reconstruction differs from primary procedures in several aspects; there are changes in the anatomy and tissue environment of the breasts, and various limitations in choosing reconstruction methods. In addition, the patients may be uncomfortable with previous complication. It is important to consider various factors before deciding to undergo a secondary breast reconstruction carefully with informed consent.
Breast ; Esthetics ; Fat Necrosis ; Female ; Humans ; Informed Consent ; Mammaplasty

PURPOSE: A total thyroidectomy for the treatment of bilateral thyroid benign nodules is still controversial. This study prospectively compared the prognosis and complications of a total thyroidectomy with those after a subtotal thyroidectomy. METHODS: Between September 2003 and October 2006, a total of 110 consecutive patients with bilateral thyroid benign nodules underwent either a total (n=77) or subtotal thyroidectomy (n=33). Temporary or permanent hypoparathyroidism, temporary or permanent recurrent laryngeal nerve palsy, operation time, the length of hospital stay, postoperative thyroxine dosage in both operation groups were compared. In addition, the detection rate of a malignancy through a permanent biopsy was examined. RESULTS: There was a higher rate of temporary hypoparathyroidism, longer length of hospital stay and higher thyroxine dosage needed in the total thyroidectomy group than in the subtotal thyroidectomy group. There were no significant differences in the permanent hypoparathyroidism, temporary or permanent recurrent laryngeal nerve palsy and operation time between the two groups. The histopathological diagnosis was a malignant tumor in 13 patients. CONCLUSION: This study suggests that a total thyroidecotmy can be performed without increasing risk of complications. A total thyroidectomy avoids recurrent nodules for the removal of the whole thyroid tissue, which avoids the need for secondary surgery with an increased risk of complications when compared with primary thyroid surgery. A total thyroidecotmy is considered the first choice for the management of bilateral thyroid benign nodules.
Biopsy ; Diagnosis ; Humans ; Hypoparathyroidism ; Length of Stay ; Prognosis ; Prospective Studies ; Thyroid Gland* ; Thyroidectomy* ; Thyroxine ; Vocal Cord Paralysis

Acinetobacter species encounters frequently with clinical specimens and now accounts for a substantial proportion of endemic nosocomial infections in Korea. Recent trends indicate that the antimicrobial resistant strains of Acinetobacter species are increasing. Sixty-one strains were isolated from specimens of patients suspected of nosocomial infections during 1991 to 1996. At present, phenotypic identification of Acinetobacter using biochemical test may not be reliable and resulted in the difficulty to clarify the source of infections and epidemiological study of hospital-acquired infections. Aware of the importance of rational taxonomic proposal for these isolates, correct species identification of these organisms by molecular typing method was carried out. A total of fifty-four strains of A. calcoaceticus-A. baumannii complex species which were identified to genospecies 2 and 13 by biochemical characteristics was subjected to identify by ribotyping using restriction endonuclease EcoRI, ClaI, and SalI. Of fifty-four strains, twenty-five strains were identified as A. baumannii (genospecies 2) and twenty-one strains as genospecies 13, and six strains changed to genospecies 3, and the rest two strains were confirmed as A. haemolyticus (genospecies 4). This result suggests that the ribotyping may be of value for identification of genospecies and epidemiological information of Acinetobacter strains.
Acinetobacter baumannii* ; Acinetobacter calcoaceticus* ; Acinetobacter* ; Cross Infection ; DNA Restriction Enzymes ; Humans ; Korea ; Molecular Typing ; Ribotyping*

To evaluate the effectiveness of computed tomography for the differential diagnosis of cervical lymphadenopathy, we reviewed CT scans of 26 patients with cervical lymphadenopathy retrospectively. These included 10 patients with tuberculous lymphadenitis, 11 patients with metastasis and 5 patients with lymphoma, We evaluated the CT scans with a special attention to internal nodal density, feature of contrast enhancement and location of lymphadenopathy. Tuberculous lymphadenitis involved multiple nodes unilaterally and showed central low density with even or uneven rim enhancement, usually occurring in young patients (mean: 31.6 years). Two cases with tuberculous lymphadenitis showed calcifications within the lymph nodes. Lymphoma involved unilateral or bilateral nodes and appeared as conglomerated isodense mass with even rim enhancement. Metastasis involved multiple nodes unilaterally and showed focal, diffuse of mixed pattern of central low density with variable rim enhancement, usually occurring in old patients (mean: 59.4 years). Locations of most frequent lymph node involvements were internal jugular group (76%), spinal accessory group (54%) and retropharyngeal group(12%).
Diagnosis, Differential ; Humans ; Lymph Nodes ; Lymphatic Diseases* ; Lymphoma ; Neoplasm Metastasis ; Retrospective Studies ; Tomography, X-Ray Computed ; Tuberculosis, Lymph Node