No abstract available.

PURPOSE: Tamoxifen has been well known as an effective anti-tumor agent against breast cancer. The important role of bcl-2 and p53 proteins in tamoxifen-induced apoptosis of breast cancer cells has been suggested. However, the paradoxical fact that bcl-2 over-expression is assdegrees Ciated with better prognosis in clinic has not yet been clearly explained. To investigate this paradox, we analyzed the effect and dynamics of bcl-2 and p53 on the apoptosis after treatment of breast cancer cells with tamoxifen. MATERIALS AND METHODS: The human breast cancer cell lines MCF-7 and MB MDA-468 were treated with 17-betaestradiol (E2) and tamoxifen. RESULTS: Following tamoxifen treatment, MCF-7 cells underwent apoptosis accompanied by reduced bcl-2 expression. E2 pre-treatment led to the inhibition of tamoxifen-mediated apoptosis and bcl-2 down-regulation. When MB MDA-468 cells were treated with E2 or tamoxifen, bcl-2 and p53 protein expression did not change and apoptosis did not develop. CONCLUSION: We observed that the down-regulation of bcl-2 by tamoxifen treatment can facilitate the apoptosis of breast cancer cells without p53 mutations. This finding was consistent with clinical experiences in which bcl-2 positive tumors were assdegrees Ciated with more indolent phenotypes in breast cancer.
Apoptosis* ; Breast Neoplasms* ; Breast* ; Cell Line* ; Down-Regulation ; Humans* ; MCF-7 Cells ; Phenotype ; Prognosis ; Tamoxifen

Esophageal duplication is the congenital developmental anomaly manifestated as cystic or tubular type. The tubular esophageal duplication found at adult is extremely rare. A patient with tubular esophageal duplication is reported. A 37 years old male developed epigastric pain aggravated at hunger state from 2 monthes before administration. Gastrofiberscopy was done, and we could found the tubular esophageal duplication at 25 cm from incisiors. Esophagogram exposed the tunnel communicated with right anterior side of normal esophagus at upper and lower part of the tubular pathway with the length of 6 cm at T4-5 level. The microscopic finding of the tubular lumen revealed normal esophageal wall structure involving the outer part of muscle layer. Surgical resection was not done for the lesion was small and no symptom due to esophageal duplication was present. And so, the authors report this case as a tubular esophageal duplication with a literature review.
Adult ; Esophagus ; Humans ; Hunger ; Male

No abstract available.
Breast Neoplasms* ; Breast* ; Estrogens*

OBJECTIVE: Although anterior cervical discectomy and fusion (ACDF) is the standard treatment for degenerative cervical disc disease, concerns regarding adjacent level degeneration and loss of motion have suggested that arthroplasty may be a better alternative. We have compared clinical and radiological results in patients with cervical disc herniations treated with arthroplasty and ACDF. METHODS: We evaluated 53 patients treated for cervical disc herniations with radiculopathy, 21 of whom underwent arthroplasty and 32 of whom underwent ACDF. Clinical results included the Visual Analogue Scale (VAS) score for upper extremity radiculopathy, neck disability index (NDI), duration of hospital stay and convalescence time. All patients were assessed radiologically by measuring cervical lordosis, segmental lordosis and segmental range-of-movement (ROM) of operated and adjacent disc levels. RESULTS: Mean hospital stay (5.62 vs. 6.26 days, p<0.05) and interval between surgery and return to work (1.10 vs. 2.92 weeks, p<0.05) were significantly shorter in the arthroplasty than in the fusion group. Mean NDI and extremity VAS score improved after 12 months in both groups. Although it was not significant, segmental ROM of adjacent levels was higher in the fusion group than in the arthroplasty group. And, segmental motion of operated levels in arthroplasty group maintained more than preoperative value at last follow up. CONCLUSION: Although clinical results were similar in the two groups, postoperative recovery was significantly shorter in the arthroplasty group. Although it was not significant, ROM of adjacent segments was less in the arthroplasty group. Motion of operated levels in arthroplasty group was preserved at last follow up.
Animals ; Arthroplasty ; Convalescence ; Diskectomy ; Extremities ; Follow-Up Studies ; Humans ; Length of Stay ; Lordosis ; Neck ; Radiculopathy ; Return to Work ; Upper Extremity

PURPOSE: This study aims to investigate preexposure prophylaxis and postexposure prophylaxis of rabies that the National Medical Center (NMC) handled and to check whether appropriate measures were performed according to the recent domestic and overseas guidelines after animal bites. METHODS: This study surveyed 41 people who were 18 years or under and received preexposure and postexposure prophylaxis of rabies at the NMC from November 2006 to December 2011. Their medical records were reviewed for their age, gender, the reason for preexposure prophylaxis, the body sites of animal bite, the kind of the animal that bit children, the region where the biting occurred and rabies vaccination and inoculation of immunoglobulin. RESULTS: Eleven children took rabies vaccination for preexposure prophylaxis and 30 children received post exposure prophylaxis of rabies. Of patients who were bitten by unvaccinated animals including wild animals or by animals which were not certain to be vaccinated, 50% (13 of 26 children) received postexposure prophylaxis, while 75% (3 of 4 children) of patients who were bitten by vaccinated animals received postexposure prophylaxis of rabies. Ten of 30 bitten patients knew whether or not the biting animals had received rabies vaccination. Of them, four people (40%) were bitten by animals which had received rabies vaccination. CONCLUSION: To prevent the occurrence of rabies, people and health care providers need to correctly understand latest guideline for rabies preexposure and postexposure prophylaxis and the information for bitten patient, biting animal and area at bitten by animal should be accurately recorded.
Animals ; Animals, Wild ; Bites and Stings ; Child ; Child Health ; Health Personnel ; Humans ; Isothiocyanates ; Medical Records ; Post-Exposure Prophylaxis ; Rabies ; Vaccination

Purpose : To evaluate the short term result of the tension-free vaginal tape (TVT) procedure in conjunction with vaginal hysterectomy in patients with concurrent stress incontinence and gynecological diseases. Materials and Methods: All patients (32 women) underwent the TVT procedure in conjunction with vaginal hysterectomy between June 2001 and April 2003. Preoperative histories, subjective questionnaires of the degree of incontinence, physical examinations, one hour pad tests and full urodynamic testing were evaluated. The postoperative clinical outcomes, patient satisfaction and complications were checked after 3-months. Results: Thirty-two women who met the study criteria were identified. The mean follow-up time, parity, age, operating time and length of hospital stay were 9.2 months, ranging from 3 to 18 months, 2.6, ranging from 1 to 5, 52.5 years, ranging from 40 to 68, 73 minutes, ranging from 55 to 122 minutes and 4.3 days, ranging from 3 to 9 days, respectively. From the questionnaires, 22 patients were found to be mildly incontinent, 7 moderately incontinent and 3 severely incontinent. All patients were cured of gynecological disease. All cases of mild, 5 of moderate and 2 of severe incontinence were cured. The three remaining patients improved. Twenty-eight patients were satisfied after the operation and 1 had intraoperative bladder perforation. Conclusions: The TVT procedure in conjunction with a vaginal hysterectomy for stress incontinence with other gynecologic disease is considered safe and efficacious, although a longer follow-up will be necessary to determine the long term effect.
Female ; Follow-Up Studies ; Genital Diseases, Female ; Humans ; Hysterectomy, Vaginal* ; Length of Stay ; Parity ; Patient Satisfaction ; Physical Examination ; Surveys and Questionnaires ; Suburethral Slings* ; Urinary Bladder ; Urinary Incontinence, Stress ; Urodynamics

PURPOSE: Midurethral sling procedure has become one of the most commonly performed procedures for the treatment of female stress urinary incontinence(SUI). Although complication rate is very low, some patients are required further treatment to correct unwanted problems after surgery as it continues to be more widely used. We evaluated the mesh-related complications in those who required further procedures after midurethral sling procedures. MATERIALS AND METHODS: From January 2000 to December 2005, female patients who underwent additional surgery because of complications after midurethral sling procedures for stress urinary incontinence were evaluated in this study. RESULTS: In 675 patients, 298 received a tension-free vaginal tape(TVT) and 377 received a Monarc(transobturator route, TOT) as a sling material at 3 different hospitals. 34(5.0%) out of 675 patients required additional surgery to correct complications including obstructive voiding symptoms, mesh extrusion, failed or recurred SUI, wound pain and mesh in the bladder. Mean age of 34 patients was 54.7, and TVT was used in 21(7.0%) out of 298 patients, Monarc was used in 12(3.4%) out of 377 as midurethral sling materials. In 19 patients who showed obstructive voiding symptoms, all were cured by mesh cutting and in 8 patients who complained of immediate recurrence of SUI, 7 showed complete dryness by shortening the loosen mesh. Mesh extrusion with vaginal erosion were observed in 3 and all were cured by segmental resection of mesh without recurrence of SUI. 2 patients who showed recurrence of SUI after 2 years of TVT received Monarc procedure. Mesh in the bladder which was found after 6 months of TVT was managed by endoscopic resection of mesh with Monarc procedure in 1, and suprapubic pain after TVT was improved by resection of TVT segment through suprapubic incision in 1. All reoperation procedures were performed by local anesthesia except 1(mesh in the bladder). CONCLUSION: These data demonstrate that midurethral sling is an excellent surgical procedure with low complication rate, high success rate in reoperation. However, care must be taken to reduce reoperation rate in applying tension of mesh on urethra because most patients(27 out of 34) who required reoperation have complained of obstructive voiding symptoms(19) and persistent incontinence(8).
Anesthesia, Local ; Female* ; Humans ; Recurrence ; Reoperation* ; Suburethral Slings* ; Urethra ; Urinary Bladder ; Urinary Incontinence* ; Wounds and Injuries

A 61-year-old woman who underwent total thyroidectomy for papillary thyroid carcinoma (PTC) five years previously referred for a cervical retrotracheal mass. The mass had intense fluorodeoxyglucose (FDG) uptake on positron emission tomography-computed tomography (PET-CT), and was thus thought to be malignant. Transcutaneous ultrasonography with fine needle aspiration (FNA) was not feasible, so we tried endobronchial ultrasonography (EBUS) with transbronchial needle aspiration (TBNA) to obtain a cytology specimen. After surgery, the mass was confirmed to be a metastatic lymph node from the previous PTC, confirming the TBNA results. Although the utility of EBUS-TBNA for evaluating mediastinal metastasis has been reported in a number of studies, few reports have addressed its utility in the cervical region. Here we report this unusual case of metastatic lymph node of PTC that recurred in the cervical retrotracheal area. It was found to exhibit esophageal muscular invasion, and was accurately diagnosed on EBUS-TBNA.
Biopsy, Fine-Needle ; Electrons ; Female ; Humans ; Lymph Nodes ; Middle Aged ; Needles* ; Neoplasm Metastasis ; Thyroid Gland* ; Thyroid Neoplasms* ; Thyroidectomy ; Ultrasonography*

PURPOSE: Infiltrating lobular carcinoma of the breast was known to have a high incidence of multicentricity and bilaterality in patients. We analyzed the clinical features of infiltrating lobular breast cancer. MATERIALS AND METHODS: We studied 29 patients with infiltrating lobular carcinoma of the breast, from Jan. 1980 to Mar. 1997 in the Department of Surgery, Seoul National University Hospital. RESULTS: The age of the patients ranged from 32 to 71 years with an average of 45.2 years. The main complaining symptom was a painless mass. The diameter of the tumor ranged from 0.7 to 7 cm with a mean size of 2.8 cm. The axillary lymph node was positive for malignancy in 12 cases. The number of multicentric breast cancers were 7 cases (24.1%), and the number of bilateral breast cancers were 3 cases (10.3%). The estrogen receptor was positive in 66.7%, and the progesterone receptor was positive in 75% of the cases. There were one local recurrence and three distant metastases during a mean follow-up period of 4.5 years. The 5-year survival rate and 5-year disease free survival rate were 89.6% and 88.6%, respectively. CONCLUSION: Infiltrating lobular breast cancers are at greater risk of developing multicentricity and bilaterality than nonlobular breast cancers. Careful program of frequent follow-up examinations and thorough histopathological studies are needed for patients with infiltrating lobular breast cancers.
Breast Neoplasms* ; Breast* ; Carcinoma, Lobular ; Disease-Free Survival ; Estrogens ; Follow-Up Studies ; Humans ; Incidence ; Lymph Nodes ; Neoplasm Metastasis ; Receptors, Progesterone ; Recurrence ; Seoul ; Survival Rate