Treatment results of 28 patients with Wilms' tumor who received radiation therapy at the Department of Therapeutic Radiology, Seoul National University Hospital from 1979 to 1988 were analyzed. The median follow-up period for the survivors was 40 months. The local control and overall survival rate at 3 years were 78.1$\%$ and 67.4$\%$, respectively. The local control was not affected by age. The local control rates for favorable histology (FH) and unfavorable histology (UH) were 83.3$\%$ and 62.5$\%$, respectively. In FH, the local control rates of stage II and III were not different ($83.3\%\;vs\;100.0\%$). In UH, the control rates of stage I/II and stage III were 83.3$\%$ and 0$\%$, respectively. Poor local control was correlated with involvement of lymph node ($50.0\%\;vs\;87.5\%$). Radiotherapy delayed 10 or more days after operation resulted in poorer local control than that without delay (p<0.05). Thus radiotherapy contributed to reduction of local recurrence in patients with high risk factor without increased severe complication. It is suggested that bulky unresectable mass might need a more intensified treatment.
Kim, Su-Jin;Ha, Tae-Wook;Kim, Hyung Jun;Kim, Jee Hwan
The Journal of Korean Academy of Prosthodontics
/
v.57
no.4
/
pp.448-455
/
2019
Ameloblastoma is a benign odontogenic epithelial tumor with high recurrence rate and requires extensive resection of the surrounding tissue and reconstruction of defect site. Because of the anatomical limitation of the reconstruction site, prosthetic treatment with implants is the first recommendation. This is a case of prosthetic restoration of the reconstruction site with implant fixed prosthesis in patient who underwent mandibular resection and iliac bone reconstruction due to ameloblastoma. However 14 months after completion of implant prosthesis, adjacent natural tooth erupted unexpectedly, resulting in 1mm infra-occlusion occurred including posterior implant prosthesis and anterior natural teeth. In adults, implant infra-occlusion may occur due to residual growth after placement of the maxillary anterior implant. But this case, hypo-occlusion of molar implant and open bite of anterior natural teeth is occurred due to extrusion of adjacent tooth, is rare. Thus we report the treatment process including orthodontic treatment with intrusion of the posterior tooth, and investigate the causes of sudden, unexpected tooth extrusion.
Bladder cancer is a relatively common cancer type, with a high recurrence rate, that can be often encountered in the imaging study. Accurate diagnosis and staging have a significant impact on determining treatment and evaluating prognosis. Bladder cancer has been evaluated by transurethral resection of bladder tumor for clinical staging and treatment, but it is often understaged when compared with final pathologic result by radical cystectomy. If the location, size, presence of muscle invasion, lymph node metastasis, distant metastasis, and presence of upper urinary tract cancer can be accurately diagnosed and evaluated in an imaging study, it can be treated and managed more appropriately. For an accurate diagnosis, radiologists who evaluate the images must be aware of the characteristics of bladder cancer as well as its types, imaging techniques, and limitations of imaging studies. Recent developments in MRI with functional imaging have improved the quality of bladder imaging and the evaluation of cancer. In addition, the Vesical Imaging Reporting and Data System was published to objectively assess the possibility for muscle invasion of cancer. Radiologists need to know the types of bladder cancer treatment and how to evaluate the changes after treatment. In this article, the characteristics of bladder urothelial carcinoma, various imaging studies, and findings are reviewed.
Seo, Young-Jun;Park, Hoon;Park, Chang-Kwon;Keum, Dong-Yoon;Yoo, Young-Sun
Journal of Chest Surgery
/
v.36
no.11
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pp.839-845
/
2003
Background: Even today when chemotherapy has been established as a treatment for tuberculosis and the prevalence of tuberculosis is gradually decreasing, multi-drug resistance tuberculosis still results in poor treatment performance and lowered survival periods. This research sought to analyze the surgery of multi-drug resistance tuberculosis, and determine the usefulness and danger of surgery in connection with this disease. Material and Method: Starting from February 1990 to February 2002, retrospective surveys were conducted targeted at 21 cases involving 20 patients who underwent surgery due to multi-drug resistance tuberculosis. The survey included 14 males cases and 6 females cases with the age averaging 42.8$\pm$12.1 years. 10.3$\pm$7.6 years on average passed after patients were initially diagnosed with tuberculosis. 13 patients (65%) tested positive in the pre-operative sputum AFB test, and all showed resistance against an average of 3.5 anti-tuberculosis agents including INH and RFP. Pre-operative radiologic examinations revealed cavitary lesions in 15 patients (75%), and three patients had lesions in the both lung fields, with the major lesions existing in the unilateral area. 13 patients (75%) failed negative conversion with medical treatment, while two patients (10%) with recurrent hemoptysis and five patients (25%) with lesions involving high recurrence-rate received the operation. Operations included nine cases (40%) of pneumonectomy, nine cases (45%) of lobectomy, and three cases of lobectomy with segmentectomy. The average follow-up period of patients stood at 23 months. Result: There was no post-operative death, and found were a total of eleven cases involving complications were found: three cases of long-term air leakage, three cases of bleeding requiring re-operation, two cases of empyemas due to broncho-pleural fistula, and one case of atelectasis, wound infection and chest wall fistula each. Eleven cases (85%) of negative conversion were completed immediately after the operation, and two cases failed negative conversion. Eleven months after the operation, the disease recurred in one case of negative conversion patients, and the patient was cured by completion pneumonectomy. Conclusion: If patients' lung function was sufficient and appropriate resection was possible, multi-drug resistance tuberculosis could achieve high-rate negative conversion and cure using combination of surgical and medical treatment, and also there were not many serious complications.
Cho, Wan Hyeong;Jeon, Dae-Geun;Song, Won Seok;Park, Hwan Seong;Nam, Hee Seung;Kim, Kyung Hoon
Journal of the Korean Orthopaedic Association
/
v.55
no.3
/
pp.244-252
/
2020
Purpose: Total femoral replacement (TFR) is an extreme form of limb salvage. Considering the rarity of this procedure, reports have focused on the complications and a proper indication is unclear. This study analyzed 36 patients with TFR who were asked the following: 1) prognostic factors related to survival in patients who underwent TFR with a tumoral cause; 2) overall implant and limb survival; 3) complications, functional outcome, and limb status for patients surviving for more than 3 years. Materials and Methods: According to the causes for TFR, 36 patients were categorized into three groups: extensive primary tumoral involvement (group 1, 15 cases), tumoral contamination by an inadvertent procedure or local recurrence (group 2, 16 cases), and salvage of a failed reconstruction (group 3, 5 cases). The factors that may affect the survival of patients included age, sex, cause of TFR, and tumor volume change after chemotherapy. Results: The overall five-year survival of the 36 patients was 31.5%±16.2%. The five-year survival of 31 patients with tumoral causes was 21.1%±15.6%. The five-year survival of 50.0%±31.0% in patients with a decreased tumor volume after chemotherapy was higher than that of increased tumor volume (p=0.02). The five-year survival of 12 cases with a wide margin was 41.7%±27.9%, whereas that of the marginal margin was 0.0%±0.0% (p=0.03). The ten-year overall implant survival of 36 patients was 85.9%±14.1%. The five-year revision-free survival was 16.6%±18.2%. At the final follow-up, 12 maintained tumor prosthesis, three underwent amputation (rotationplasty, 2; above knee amputation, 1), and the remaining one had knee fusion. Among 16 patients with a follow-up of more than three years, 14 patients underwent surgical intervention and two patients had conservative management. Complications included infection in 10 cases, local recurrences in two cases, and one case each of hip dislocation, bushing fracture, and femoral artery occlusion. Conclusion: Patients showing an increased tumor volume after chemotherapy and having an inadequate surgical margin showed a high chance of early death. In the long-term follow-up, TFR showed a high infection rate and the functional outcome was unsatisfactory. Nevertheless, this procedure is an inevitable option of limb preservation in selected patients.
Chang, Young Beom;Lee, Seung Hyun;Kang, Eun Young;Rhee, Kyoung-Suk;Joo, Chan Uhng
Clinical and Experimental Pediatrics
/
v.50
no.11
/
pp.1085-1090
/
2007
Purpose : Radiofrequency catheter ablation (RFCA) has become an effective therapeutic modality for treating pediatric tachyarrhythmias. Using conventional RFCA catheters, ablation of parahisian accessory pathways may be difficult and have high risk for heart block. We reviewed the efficacy and complications of the RFCA in children and adolescent with arrhythmias including parahisian accessory pathways. Methods : We studied 48 patients (aged 2 years to 20 years) who had undergone RFCA from August 2003 to March 2007. We reviewed clinical findings, electrophysiologic studies, RFCA data, complications, and follow-up results of the patients. Results : Mean age of the patients was 13.1 years. Numbers and types of arrhythmias (age, acute success rate) were as follows: 19 WPW syndrome including 5 parahisian accessory pathways ($13.7{\pm}4.6yr$, 18/19), 11 atrioventricular reentrant tachycardia with concealed bypass tract ($12.3{\pm}5.0yr$, 10/11), 13 atrioventricular nodal reentrant tachycardia ($12.6{\pm}4.4yr$, 13/13), 4 atrial flutter ($13.0{\pm}7.4yr$, 3/4), and 1 ventricular tachycardia (20 yr, 1/1). Associated cardiac structural lesion was not detected in 48 patients. The recurrence rate was 6.5%, and the final success rate was 93.8%. Conclusion : These results suggest that RFCA is a highly effective treatment method in children and adolescent with tachyarrhythmia.
Purpose : Since February 1991 a Prospective study for non-small cell lung cancer patients who underwent radical resection and had a risk factor of positive resection margin or regional lymph node metastasis has been conducted to evaluate the effect of MVP chemotherapy and radiotherapy on the pattern of failure, disease free and overall survival. and tolerance of combined treatment. Materials and Methods: Twenty nine patients were registered to this study until Sep. 1993; of these 26 received planned therapy Within 3 weeks after radical resection, two cycles of MVP(Mitomycin C $6mg/m^2,$ Vinblastin $6mg/m^2,$ Cisplatin $60mg/m^2$) chemotherapy was given with 4 weeks intervals. Radiotherapy (5040cGy tumor bed dose and 900cGy boost to high risk area) was started 3 to 4 weeks after chemotherapy. Results: One and two year overall survival rates were $76.5\%\;and\;58.6\%$ respectively. Locoregional failure developed in 6 patients$(23.1\%)$ and distant failure in 9 patients$(34.6\%)$ Number of involved lymph nodes, resection margin positivity showed some correlation with failure pattern but T-stage and N-stage showed no statistical significance. The group of patients who received chemotherapy within 2 weeks postoperatively and radiotherapy within 70 days showed lower incidence of distant metastasis. Postoperative combined therapy were well tolerated without definite increase of complication rate, and compliance rate in this study was $90\%$. Conclusion: 1) MVP chemotherapy showed no effect on locoregional recurrence, but appeared to decrease the distant metastasis rate and 2) combined treatments were well tolerated in all patients. 3) The group of patients who received chemotherapy within 2 weeks postoperatively and radiotherapy within 70days showed lower incidence of distant metastasis. 4) Addition of chemotherapy to radiotherapy failed to increase the overall or disease free survival.
Background: The cause of spontaneous pneumothorax is not yet but it is certain that intrathoracic air comes from ruptured bulla. Video-assisted thoracoscopic surgery(VATS) or open thoracotomy is recommended for thoracic incision in recurrent pneumothorax. However, recurrent rate after bullectomy with the VATS is very high compared to mini-thoracotomy, 3% to 20% and below 2%, respectively. Material and Method: This retrospective analysis was performed on 16 re-operated cases among 446 surgically treated pneumothorax of the 737 cases of spontaneous pneumothorax diagnosed at Yongdong Severance Hospital from Nov. 1992 to June 1997. Result: Among the 446 surgically-treated patients in 737 case of spontaneous pneumothorax, 16 patients underwent re-operation, showing a 3.5% re-operation rate. Male-to-female ratio was 15 to 1 and mean age at initial attack was 20.2 years(ranging from 15 to 50). Mean hospital stay was 6.34 days(ranging from 2 to 20 days) and mean chest tube indwelling period was 4.2 days(ranging from 1-10 days). Median follow-up was 46 months(range 10-66 months). Three different surgical methods were applied : video-assisted thoracoscopic surgery(VAST) in 281 cases, of whom 2 underwent local anesthesia; subaxillary mini-thoracotomy in 159 cases and limited lateral thoracotomy in the remaining 6 cases. Three different re-operative surgical methods were applied ; video-assisted thoracoscopic surgery (VAST) in 6 cases, subaxillary mini-thoracotomy in 9 cases, and limited lateral thoracotomy in the remaining 1 case. The underlying etiological factors of the recurrent pneumothorax after bullectomy were o erlooking type(9) and new growing type(7). Mean recurrent period from previous operation was 1 month for overlooking type and 18 months for new growing type. Conclusion: The underlying etiological factors of recurrent pneumothorax lead to re-operation were new-growing and over-looking type. We need additional treatments besides resecting blebs of prevent the recurrence rate and more gentle handling with forceps due to less damage to the pleura.
Purpose: Endoscopic incision and submucosal dissection (EISD) is a technique that is being implemented for the resection of gastric adenomas and early gastric cancer (EGC). Since EISD requires a high degree of skill and experience, and due to its association with a moderate risk of gastrointestinal bleeding, its use has been limited. The objective of this study is to investigate the clinical benefits of EISD based upon clinical data on the EISD procedure. Materials and Methods: This study was conducted at Soonchunhyang University Hospital and it included 179 gastric adenoma and early gastric carcinoma lesions from 164 patients who had undergone an EISD from February 2003 to May 2005. Results: Among the total of 179 lesions, the distributions of EGC and adenomas were 70.3% (126/179) and 23.4% (42/179) respectively. The sizes of lesions were divided into 10 mm or less, $11{\sim}20\;mm,\;21{\sim}30\;mm$ and greater than 31 mm and each rates are 10.0% (18/179), 46.3% (83/179), 30% (50/179) and 15.0% (28/179). Among 120 cases which could be measured depth of lesion in according to pathologic findings, m1 (0.8%, 1/120), m2 (38.3%, 46/120), m3 (25%, 57/120), sm1 (11.7%, 14/120), sm2 (1.6%, 2/120) were diagnosed as early stages of gastric cancer. The complete resection rate was 85.2% (150/176) and en-bloc resection rate was 96.0% (169/176). Complications as such as perforation and bleeding developed in 4.4%(8/179) and 21.2% (38/179), respectively. Conclusion: EISD is an effective in the endoscopic treatment for gastric adenoma and early gastric cancers. However, further evaluation of this method and long-term follow-up will be necessary for an evaluation of the recurrence rate after resection of a tumor.
Jang, Tae Won;Park, Jung Pil;Kim, Hee Kyoo;Ok, Chul Ho;Jeung, Tae Sig;Jung, Maan Hong
Tuberculosis and Respiratory Diseases
/
v.57
no.3
/
pp.257-264
/
2004
Background : There are many combinations of treatment for locally advanced non-small cell lung cancer (NSCLC). Recent studies have showed the efficacy of concurrent chemoradiotherapy (CCRT) in NSCLC. At present, however, there is no consensus about the optimal dosages and timing of radiation and chemotherapeutic agents. The aims of study were to determine the feasibility, toxicity, response rate, and survival rate in locally advanced NSCLC patients treated with doxetaxel and cisplatin based CCRT. Method : Sixteen patients with unresectable stage III NSCLC were evaluated from May 2000 until September 2001. Induction chemoradiotherapy consisted of 3 cycles of docetaxel (75 $mg/m^2/IV$ on day 1) and cisplatin (60 $mg/m^2/IV$ on day 1) chemotherapy every 3 weeks and concomitant hyperfractionated chest irradiation (1.15 Gy/BID, total dose of 69 Gy) in 6 weeks. Patient who had complete or partial response, and stable disease were applied consolidation chemotherapy of docetaxel and cisplatin. Results : All patients showed response to CCRT. Four patients achieved complete response (25%), partial responses in 12 patients (75%). The major common toxicities were grade III or more of neutropenia (87.3%), grade III esophagitis (68.8%), pneumonia (18.8%) and grade III radiation pneumonitis (12.5%). Thirteen patients were ceased during follow-up period. Median survival time was 19.9 months (95% CI; 4.3-39.7 months). The survival rates in one, two, and three years are 68.7%, 43.7%, and 29.1%, respectively. Local recurrence was found in 11 patients (66.8%), bone metastasis in 2, and brain metastasis in 1 patient. Conclusion : The response rate and survival time of CCRT with docetaxel/cisplatin in locally advanced NSCLC were encouraging, but treatment related toxicities were high. Further modification of therapy seems to be warranted.
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