1.Recurrence pattern of glioblastoma treated with intensity-modulated radiation therapy versus three-dimensional conformal radiation therapy
So Hwa MUN ; Hong Seok JANG ; Byung Ok CHOI ; Shin Woo KIM ; Jin-Ho SONG
Radiation Oncology Journal 2024;42(3):218-227
		                        		
		                        			 Purpose:
		                        			To evaluate recurrence patterns of and survival outcomes in glioblastoma treated with intensity-modulated radiation therapy (IMRT) versus three-dimensional conformal radiation therapy (3D-CRT). 
		                        		
		                        			Materials and Methods:
		                        			We retrospectively examined 91 patients with glioblastoma treated with either IMRT (n = 60) or 3D-CRT (n = 31) between January 2013 and December 2019. Magnetic resonance imaging showing tumor recurrence and planning computed tomography scans were fused for analyzing recurrence patterns categorized as in-field, marginal, and out-of-field based on their relation to the initial radiation field. 
		                        		
		                        			Results:
		                        			The median overall survival (OS) was 18.9 months, with no significant difference between the groups. The median progression-free survival (PFS) was 9.4 months, with no significant difference between the groups. Patients who underwent gross total resection (GTR) had higher OS and PFS than those who underwent less extensive surgery. Among 78 relapse cases, 67 were of in-field; 5, marginal; and 19, out-of-field recurrence. Among 3D-CRT-treated cases, 24 were of in-field; 1, marginal; and 9, out-of-field recurrence. Among IMRT-treated cases, 43 were of in-field; 4, marginal; and 10, out-of-field recurrence. In partial tumor removal or biopsy cases, out-of-field recurrence was less frequent in the IMRT (16.2%) than in the 3D-CRT (36.3%) group, with marginal significance (p = 0.079). 
		                        		
		                        			Conclusion
		                        			IMRT and 3D-CRT effectively managed glioblastoma with no significant differences in OS and PFS. The survival benefit with GTR underscored the importance of maximal surgical resection. The reduced rate of out-of-field recurrence in IMRT-treated patients with partial resection highlights its potential utility in cases with unfeasible complete tumor removal. 
		                        		
		                        		
		                        		
		                        	
2.Recurrence pattern of glioblastoma treated with intensity-modulated radiation therapy versus three-dimensional conformal radiation therapy
So Hwa MUN ; Hong Seok JANG ; Byung Ok CHOI ; Shin Woo KIM ; Jin-Ho SONG
Radiation Oncology Journal 2024;42(3):218-227
		                        		
		                        			 Purpose:
		                        			To evaluate recurrence patterns of and survival outcomes in glioblastoma treated with intensity-modulated radiation therapy (IMRT) versus three-dimensional conformal radiation therapy (3D-CRT). 
		                        		
		                        			Materials and Methods:
		                        			We retrospectively examined 91 patients with glioblastoma treated with either IMRT (n = 60) or 3D-CRT (n = 31) between January 2013 and December 2019. Magnetic resonance imaging showing tumor recurrence and planning computed tomography scans were fused for analyzing recurrence patterns categorized as in-field, marginal, and out-of-field based on their relation to the initial radiation field. 
		                        		
		                        			Results:
		                        			The median overall survival (OS) was 18.9 months, with no significant difference between the groups. The median progression-free survival (PFS) was 9.4 months, with no significant difference between the groups. Patients who underwent gross total resection (GTR) had higher OS and PFS than those who underwent less extensive surgery. Among 78 relapse cases, 67 were of in-field; 5, marginal; and 19, out-of-field recurrence. Among 3D-CRT-treated cases, 24 were of in-field; 1, marginal; and 9, out-of-field recurrence. Among IMRT-treated cases, 43 were of in-field; 4, marginal; and 10, out-of-field recurrence. In partial tumor removal or biopsy cases, out-of-field recurrence was less frequent in the IMRT (16.2%) than in the 3D-CRT (36.3%) group, with marginal significance (p = 0.079). 
		                        		
		                        			Conclusion
		                        			IMRT and 3D-CRT effectively managed glioblastoma with no significant differences in OS and PFS. The survival benefit with GTR underscored the importance of maximal surgical resection. The reduced rate of out-of-field recurrence in IMRT-treated patients with partial resection highlights its potential utility in cases with unfeasible complete tumor removal. 
		                        		
		                        		
		                        		
		                        	
3.Recurrence pattern of glioblastoma treated with intensity-modulated radiation therapy versus three-dimensional conformal radiation therapy
So Hwa MUN ; Hong Seok JANG ; Byung Ok CHOI ; Shin Woo KIM ; Jin-Ho SONG
Radiation Oncology Journal 2024;42(3):218-227
		                        		
		                        			 Purpose:
		                        			To evaluate recurrence patterns of and survival outcomes in glioblastoma treated with intensity-modulated radiation therapy (IMRT) versus three-dimensional conformal radiation therapy (3D-CRT). 
		                        		
		                        			Materials and Methods:
		                        			We retrospectively examined 91 patients with glioblastoma treated with either IMRT (n = 60) or 3D-CRT (n = 31) between January 2013 and December 2019. Magnetic resonance imaging showing tumor recurrence and planning computed tomography scans were fused for analyzing recurrence patterns categorized as in-field, marginal, and out-of-field based on their relation to the initial radiation field. 
		                        		
		                        			Results:
		                        			The median overall survival (OS) was 18.9 months, with no significant difference between the groups. The median progression-free survival (PFS) was 9.4 months, with no significant difference between the groups. Patients who underwent gross total resection (GTR) had higher OS and PFS than those who underwent less extensive surgery. Among 78 relapse cases, 67 were of in-field; 5, marginal; and 19, out-of-field recurrence. Among 3D-CRT-treated cases, 24 were of in-field; 1, marginal; and 9, out-of-field recurrence. Among IMRT-treated cases, 43 were of in-field; 4, marginal; and 10, out-of-field recurrence. In partial tumor removal or biopsy cases, out-of-field recurrence was less frequent in the IMRT (16.2%) than in the 3D-CRT (36.3%) group, with marginal significance (p = 0.079). 
		                        		
		                        			Conclusion
		                        			IMRT and 3D-CRT effectively managed glioblastoma with no significant differences in OS and PFS. The survival benefit with GTR underscored the importance of maximal surgical resection. The reduced rate of out-of-field recurrence in IMRT-treated patients with partial resection highlights its potential utility in cases with unfeasible complete tumor removal. 
		                        		
		                        		
		                        		
		                        	
4.Recurrence pattern of glioblastoma treated with intensity-modulated radiation therapy versus three-dimensional conformal radiation therapy
So Hwa MUN ; Hong Seok JANG ; Byung Ok CHOI ; Shin Woo KIM ; Jin-Ho SONG
Radiation Oncology Journal 2024;42(3):218-227
		                        		
		                        			 Purpose:
		                        			To evaluate recurrence patterns of and survival outcomes in glioblastoma treated with intensity-modulated radiation therapy (IMRT) versus three-dimensional conformal radiation therapy (3D-CRT). 
		                        		
		                        			Materials and Methods:
		                        			We retrospectively examined 91 patients with glioblastoma treated with either IMRT (n = 60) or 3D-CRT (n = 31) between January 2013 and December 2019. Magnetic resonance imaging showing tumor recurrence and planning computed tomography scans were fused for analyzing recurrence patterns categorized as in-field, marginal, and out-of-field based on their relation to the initial radiation field. 
		                        		
		                        			Results:
		                        			The median overall survival (OS) was 18.9 months, with no significant difference between the groups. The median progression-free survival (PFS) was 9.4 months, with no significant difference between the groups. Patients who underwent gross total resection (GTR) had higher OS and PFS than those who underwent less extensive surgery. Among 78 relapse cases, 67 were of in-field; 5, marginal; and 19, out-of-field recurrence. Among 3D-CRT-treated cases, 24 were of in-field; 1, marginal; and 9, out-of-field recurrence. Among IMRT-treated cases, 43 were of in-field; 4, marginal; and 10, out-of-field recurrence. In partial tumor removal or biopsy cases, out-of-field recurrence was less frequent in the IMRT (16.2%) than in the 3D-CRT (36.3%) group, with marginal significance (p = 0.079). 
		                        		
		                        			Conclusion
		                        			IMRT and 3D-CRT effectively managed glioblastoma with no significant differences in OS and PFS. The survival benefit with GTR underscored the importance of maximal surgical resection. The reduced rate of out-of-field recurrence in IMRT-treated patients with partial resection highlights its potential utility in cases with unfeasible complete tumor removal. 
		                        		
		                        		
		                        		
		                        	
5.Recurrence pattern of glioblastoma treated with intensity-modulated radiation therapy versus three-dimensional conformal radiation therapy
So Hwa MUN ; Hong Seok JANG ; Byung Ok CHOI ; Shin Woo KIM ; Jin-Ho SONG
Radiation Oncology Journal 2024;42(3):218-227
		                        		
		                        			 Purpose:
		                        			To evaluate recurrence patterns of and survival outcomes in glioblastoma treated with intensity-modulated radiation therapy (IMRT) versus three-dimensional conformal radiation therapy (3D-CRT). 
		                        		
		                        			Materials and Methods:
		                        			We retrospectively examined 91 patients with glioblastoma treated with either IMRT (n = 60) or 3D-CRT (n = 31) between January 2013 and December 2019. Magnetic resonance imaging showing tumor recurrence and planning computed tomography scans were fused for analyzing recurrence patterns categorized as in-field, marginal, and out-of-field based on their relation to the initial radiation field. 
		                        		
		                        			Results:
		                        			The median overall survival (OS) was 18.9 months, with no significant difference between the groups. The median progression-free survival (PFS) was 9.4 months, with no significant difference between the groups. Patients who underwent gross total resection (GTR) had higher OS and PFS than those who underwent less extensive surgery. Among 78 relapse cases, 67 were of in-field; 5, marginal; and 19, out-of-field recurrence. Among 3D-CRT-treated cases, 24 were of in-field; 1, marginal; and 9, out-of-field recurrence. Among IMRT-treated cases, 43 were of in-field; 4, marginal; and 10, out-of-field recurrence. In partial tumor removal or biopsy cases, out-of-field recurrence was less frequent in the IMRT (16.2%) than in the 3D-CRT (36.3%) group, with marginal significance (p = 0.079). 
		                        		
		                        			Conclusion
		                        			IMRT and 3D-CRT effectively managed glioblastoma with no significant differences in OS and PFS. The survival benefit with GTR underscored the importance of maximal surgical resection. The reduced rate of out-of-field recurrence in IMRT-treated patients with partial resection highlights its potential utility in cases with unfeasible complete tumor removal. 
		                        		
		                        		
		                        		
		                        	
6.Oncologic Outcomes of Immediate Breast Reconstruction in the Setting of Neoadjuvant Chemotherapy: A Long-term Follow-up Study of a Matched Cohort
Dong Seung SHIN ; Yoon Ju BANG ; Joon Young CHOI ; Sung Yoon JANG ; Hyunjun LEE ; Youngji KWAK ; Byung Joo CHAE ; Jonghan YU ; Jeong Eon LEE ; Seok Won KIM ; Seok Jin NAM ; Byung-Joon JEON ; Jai Kyong PYON ; Goo-Hyun MUN ; Kyeong-Tae LEE ; Jai Min RYU
Journal of Breast Cancer 2024;27(1):14-26
		                        		
		                        			 Purpose:
		                        			Despite the increasing use of immediate breast reconstruction (IBR), its oncologic safety in the setting of neoadjuvant chemotherapy (NACT) needs to be comprehensively clarified in breast cancer management. The objective of the present study was to analyze the oncologic safety of IBR following NACT. 
		                        		
		                        			Methods:
		                        			In total, 587 patients with breast cancer who underwent a total mastectomy (TM) with IBR after NACT between 2008 and 2017 at a single institution were retrospectively reviewed. The reviewed patients with IBR following skin-sparing mastectomy (SSM) or nipple-sparing mastectomy (NSM) were matched 1:3 to patients who underwent TM alone after NACT. Matching variables included age, clinical T and N stages before NACT, response to NACT, pathologic T and N stages, and molecular subtypes. 
		                        		
		                        			Results:
		                        			After propensity score matching, 95 patients who underwent IBR following SSM/ NSM after NACT (IBR group) and 228 patients who underwent TM alone after NACT (TM group) were selected. The median follow-up period was 73 (range, 5–181) months after matching. After matching, there were no significant differences between the two groups in 5-year locoregional recurrence-free survival (88.8% vs. 91.2%, p = 0.516), disease-free survival (67.3% vs. 76.6%, p = 0.099), distant metastasis-free survival (71.9% vs. 81.9%, p = 0.057), or overall survival (84.1% vs. 91.5, p = 0.061) rates. In multivariate analyses, conducting IBR was not associated with increased risks for locoregional recurrence, any recurrence, distant metastasis, or overall death. 
		                        		
		                        			Conclusion
		                        			Our findings suggest that IBR following SSM/NSM elicits comparable long-term oncologic outcomes to those of TM alone in the setting of NACT. 
		                        		
		                        		
		                        		
		                        	
7.The Pattern of Care for Brain Metastasis from Breast Cancer over the Past 10 Years in Korea: A Multicenter Retrospective Study (KROG 16-12)
Jae Sik KIM ; Kyubo KIM ; Wonguen JUNG ; Kyung Hwan SHIN ; Seock-Ah IM ; Hee-Jun KIM ; Yong Bae KIM ; Jee Suk CHANG ; Jee Hyun KIM ; Doo Ho CHOI ; Yeon Hee PARK ; Dae Yong KIM ; Tae Hyun KIM ; Byung Ock CHOI ; Sea-Won LEE ; Suzy KIM ; Jeanny KWON ; Ki Mun KANG ; Woong-Ki CHUNG ; Kyung Su KIM ; Ji Ho NAM ; Won Sup YOON ; Jin Hee KIM ; Jihye CHA ; Yoon Kyeong OH ; In Ah KIM
Cancer Research and Treatment 2022;54(4):1121-1129
		                        		
		                        			 Purpose:
		                        			We aimed to investigate manifestations and patterns of care for patients with brain metastasis (BM) from breast cancer (BC) and compared their overall survival (OS) from 2005 through 2014 in Korea. 
		                        		
		                        			Materials and Methods:
		                        			We retrospectively reviewed 600 BC patients with BM diagnosed between 2005 and 2014. The median follow-up duration was 12.5 months. We categorized the patients into three groups according to the year when BM was initially diagnosed (group I [2005-2008], 98 patients; group II [2009-2011], 200 patients; and group III [2012-2014], 302 patients). 
		                        		
		                        			Results:
		                        			Over time, the median age at BM diagnosis increased by 2.2 years (group I, 49.0 years; group II, 48.3 years; and group III, 51.2 years; p=0.008). The percentage of patients with extracranial metastasis was 73.5%, 83.5%, and 86.4% for group I, II, and III, respectively (p=0.011). The time interval between BC and BM was prolonged in patients with stage III primary BC (median, 2.4 to 3 years; p=0.029). As an initial brain-directed treatment, whole-brain radiotherapy alone decreased from 80.0% in 2005 to 41.1% in 2014. Meanwhile, stereotactic radiosurgery or fractionated stereotactic radiotherapy alone increased from 13.3% to 34.7% during the same period (p=0.005). The median OS for group I, II, and III was 15.6, 17.9, and 15.0 months, respectively, with no statistical significance. 
		                        		
		                        			Conclusion
		                        			The manifestations of BM from BC and the pattern of care have changed from 2005 to 2014 in Korea. However, the OS has remained relatively unchanged over the 10 years. 
		                        		
		                        		
		                        		
		                        	
8.Risk factors of 30-day mortality following endovascular thoracic and abdominal aortic repair with general anesthesia
Nari KIM ; Si Jin CHOI ; Byung Hoon YOO ; Sangseok LEE ; Kye Min KIM ; Jun Heum YON ; Woo Yong LEE ; Mun Cheol KIM
Anesthesia and Pain Medicine 2019;14(3):305-315
		                        		
		                        			
		                        			BACKGROUND: Recently, endovascular aortic repair (EVAR) and thoracic endovascular aortic repair (TEVAR), have been used for treatment of thoracic and abdominal aortic aneurysms. The purpose of this study was to analyze the outcome and predictors for 30-day mortality and complications, in patients that underwent EVAR and/or TEVAR under general anesthesia. METHODS: In this study, 151 cases of EVAR and/or TEVAR under general anesthesia in 140 patients during 2009–2017 were studied. The primary outcome was 30-day mortality after surgery. Multivariate logistic regression analysis was used, to clarify risk for postoperative 30-day mortality. RESULTS: Postoperative 30-day mortality rate was 9.9% in the study population (10.3% in EVAR, and 9.3% in TEVAR, respectively). Seventy-two cases (47.7%) experienced postoperative complications within 30 days. Elderly older than age 76.5 (odds ratio [ORs] = 48.89, 95% confidential interval [95% CI] 1.40–1,710.25, P = 0.032), technically expertness (OR = 0.01, 95% CI 0.00–0.40, P = 0.013), severity of systemic complications (OR = 23.24, 95% CI, 2.27–238.24, P = 0.008), and severity of local-vascular complications (OR = 31.87, 95% CI, 1.29–784.66, P = 0.034) were significantly associated with 30-day mortality. CONCLUSIONS: This study revealed that elderly, technically expertness, and severity of systemic and local-vascular complications were associated with 30-day mortality of EVAR and TEVAR in aortic aneurysm.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Anesthesia, General
		                        			;
		                        		
		                        			Aortic Aneurysm
		                        			;
		                        		
		                        			Aortic Aneurysm, Abdominal
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Length of Stay
		                        			;
		                        		
		                        			Logistic Models
		                        			;
		                        		
		                        			Mortality
		                        			;
		                        		
		                        			Postoperative Complications
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
9.Suppression of Oxidative Stress of Modified Gongjin-Dan (WSY-1075) in Detrusor Underactivity Rat Model Bladder Outlet Induced by Obstruction.
Jin-Woo JUNG ; Seung Hwan JEON ; Woong Jin BAE ; Su Jin KIM ; Mun Su CHUNG ; Byung Il YOON ; Sae Woong CHOI ; U Syn HA ; Sung Yeoun HWANG ; Sae Woong KIM
Chinese journal of integrative medicine 2018;24(9):670-675
OBJECTIVETo investigate the anti-oxidative stress and preventive effect of modified Gongjin-dan (WSY-1075) in a detrusor underactivity rat model.
METHODSRats were randomly allocated to three groups: shamoperated (control), bladder outlet obstruction-induced detrusor underactivity (BOO-DU), and BOO-DU with WSY-1075 (WSY) groups. WSY-1075 was orally administrated to rats 200 mg daily for 2 weeks prior to the operation and 4 weeks after the operation. Bladder outlet obstruction was surgically induced in rats by ligation around the urethra avoiding total obstruction. Cystometrography was conducted on rats in each group for examination of bladders.
RESULTSCompared with the control group, bladder outlet obstruction led to a significant increase in oxidative stress with consequent changes to molecular composition, and decrease in maximal detrusor pressure (P<0.05). WSY-1075 treatment significantly suppressed oxidative stress and prevented degenerative and dysfunctional changes in bladder, as compared with BOO-DU group (P<0.05).
CONCLUSIONWSY-1075 had beneficial effect on prevention of BOO-DU.
10.The safety and efficacy of percutaneous transhepatic gallbladder drainage in elderly patients with acute cholecystitis before laparoscopic cholecystectomy.
Byung Gon NA ; Young Sun YOO ; Seong Pyo MUN ; Seong Hwan KIM ; Hyun Young LEE ; Nam Kyu CHOI
Annals of Surgical Treatment and Research 2015;89(2):68-73
		                        		
		                        			
		                        			PURPOSE: Laparoscopic cholecystectomy (LC) is the standard management for acute cholecystitis. Percutaneous transhepatic gallbladder drainage (PTGBD) may be an alternative interim strategy before surgery in elderly patients with comorbidities. This study was designed to evaluate the safety and efficacy of PTGBD for elderly patients (>60 years) with acute cholecystitis. METHODS: We reviewed consecutive patients diagnosed with acute cholecystitis between January 2009 and December 2013. Group I included patients who underwent PTGBD, and patients of group II did not undergo PTGBD before LC. RESULTS: All 116 patients (72.7 +/- 7.1 years) were analyzed. The preoperative details of group I (n = 39) and group II (n = 77) were not significantly different. There was no significant difference in operative time (P = 0.057) and intraoperative estimated blood loss (P = 0.291). The rate of conversion to open operation of group I was significantly lower than that of group II (12.8% vs. 32.5%, P < 0.050). No significant difference of postoperative morbidity was found between the two groups (25.6% vs. 26.0%, P = 0.969). In addition, perioperative mortality was not significantly different. Preoperative hospital stay of group I was significantly longer than that of group II (10.3 +/- 5.7 days vs. 4.4 +/- 2.8 days, P < 0.050). However, two groups were not significantly different in total hospital stay (16.3 +/- 9.0 days vs. 13.4 +/- 6.5 days, P = 0.074). CONCLUSION: PTGBD is a proper preoperative management before LC for elderly patients with acute cholecystitis.
		                        		
		                        		
		                        		
		                        			Aged*
		                        			;
		                        		
		                        			Cholecystectomy, Laparoscopic*
		                        			;
		                        		
		                        			Cholecystitis, Acute*
		                        			;
		                        		
		                        			Comorbidity
		                        			;
		                        		
		                        			Drainage*
		                        			;
		                        		
		                        			Gallbladder*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Length of Stay
		                        			;
		                        		
		                        			Mortality
		                        			;
		                        		
		                        			Operative Time
		                        			
		                        		
		                        	
            
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