- Advanced Radiotherapy Techniques
- Head and Neck Cancer Studies
- Inflammatory Biomarkers in Disease Prognosis
- Lung Cancer Diagnosis and Treatment
- Breast Cancer Treatment Studies
- Cancer survivorship and care
- Radiomics and Machine Learning in Medical Imaging
- Childhood Cancer Survivors' Quality of Life
- Lung Cancer Research Studies
- Family Support in Illness
- Radiation Therapy and Dosimetry
- Cancer Immunotherapy and Biomarkers
- Colorectal and Anal Carcinomas
- Neonatal Respiratory Health Research
- Cancer Risks and Factors
- Colorectal Cancer Surgical Treatments
- Lung Cancer Treatments and Mutations
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Endometrial and Cervical Cancer Treatments
- Pancreatic and Hepatic Oncology Research
- Breast Lesions and Carcinomas
- Gallbladder and Bile Duct Disorders
- Brain Metastases and Treatment
- Effects of Radiation Exposure
- Multiple and Secondary Primary Cancers
Ajou University
2015-2024
Ajou University Hospital
2010-2023
Asan Medical Center
2007-2010
University of Ulsan
2007-2010
Ulsan College
2010
The purpose of this study was to investigate whether the minimum absolute lymphocyte count during radiotherapy (min ALC) and 1 month after (post could predict clinical outcome in limited-stage small cell lung cancer (LS-SCLC) patients. We analyzed 73 LS-SCLC patients treated with chemotherapy radiotherapy; we collected data on min ALC from 62 post 60 Both were statistically significant predictors overall survival multivariate analysis (hazard ratio [95 % confidence interval] 2.67...
The purpose of this study was to investigate whether the minimum absolute lymphocyte count (ALC) during radiotherapy (RT) could predict clinical outcome in patients with nasopharyngeal cancer (NPC).We analyzed 70 NPC including 63 treated chemoradiotherapy and used multivariate analysis determine ALC affected outcome.Patients were grouped by ALC, a cutoff 245 cells/μL. Five-year disease-specific survival (DSS) progression-free (PFS) for ≥245 versus <245 88.1% 60.8% (p = .004) 71.2% 35.2%...
This study was performed to determine survival and morbidity rates in very low birth weight infants (VLBWIs) the Korean Neonatal Network (KNN), compare neonatal outcomes with those other countries.Data were collected for 8,269 VLBWIs gestational age (GA) ≥ 22 weeks who born between January 1, 2013 December 31, 2016, admitted intensive care units of KNN.The rate all GA 22-23, 24-25, 26-27, 28-29, 30-32, > 32 86% (total), 33%, 65%, 84%, 94%, 97%, 98%, respectively. The bronchopulmonary...
Objectives The aims of this study were to develop a smartphone application encourage breast self-examination (BSE), and evaluate the effects in terms modifying BSE behavior. Methods A application, based on Android OS, was developed with functions including date alarm, reminder mother daughter practice together, record keeping, educational content video clips. Females aged 19 over enrolled effectiveness application. Two series questionnaires carried out (before after use application) by...
Purpose The objective of this study was to explore the relationship between circulating lymphocyte level during preoperative chemoradiotherapy (CRT) and pathologic complete response (pCR) in locally advanced rectal cancer. Materials Methods From May 2010 2013, 52 patients treated with CRT followed by surgery, were analysed. Patients received conventional fractionated radiotherapy (50-54 Gy) fluorouracil-based chemotherapy. Surgical resection performed at 4 8 weeks after completion CRT....
We analyzed the changes in absolute lymphocyte count and its over time 139 patients treated with preoperative chemoradiotherapy for locally advanced rectal cancer. The baseline was defined as median of levels measured during 30 days before chemoradiotherapy. Absolute at 1 month, 0.5 to year, 2 years, 3 years were determined by values counts respective periods. decreased after delivering chemoradiotherapy, reached minimum level then gradually increased completion Baseline had significant...
Castleman's disease or angiofollicular lymph node hyperplasia is a rare lymphoproliferative disorder. Complete surgical resection was recommended in unicentric disease. Radiotherapy considered alternative therapeutic option. However, there have been consistent favorable responses to radiotherapy. We also experienced two cases of uncentric salvaged successfully with This paper described these and reviewed the literature about treated Reviewed showed that radiotherapy successful treatment...
Abstract Background Localization of the tumor bed breast cancer is crucial for accurate planning boost irradiation. Lumpectomy cavity and surgical clips provide localizing information about bed. However, defining often difficult because presence unclear lumpectomy lack certain such as absence clips. In present study, we evaluated feasibility initial diagnostic PET-CT in localization using deformable image registration (DIR). Methods We selected twenty-five patients who had an performed...
A proportion of patients with chronic obstructive pulmonary disease (COPD) may progress rapidly to small cell lung cancer (SCLC). As the forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) ratio is usually impaired COPD, and given that FEV1 FVC are not necessarily related development, we performed this study test our hypothesis FEV1/FVC predicts survival limited-stage (LS)-SCLC.We assessed 74 LS-SCLC treated chemoradiotherapy. The were divided into two groups: <0.74...
This study aimed to evaluate patterns of posttransplant malignancies among renal transplant recipients (RTRs) in South Korea using nationwide data. The cohort assessed this included RTRs from January 1, 2010, December 31, 2014. We analyzed cancer incidence during the time course after transplantation. Additionally, we calculated standardized ratios (SIRs) risk RTRs. A total 1343 (871 males and 472 females, mean age 48.5 ± 11.6 years) were assessed. Among them, 104 (7.7%) developed...
The aim of this time-dependent study was to analyze the prevalence mental disorders in ovarian cancer survivors using claims data South Korea.We confirmed a nationwide cohort 9763 patients who were diagnosed with between January 1, 2010 and December 31, 2014. We categorized based on age time diagnosis.A total 821 disorder, 1 year prior diagnosis. Of those patients, 311 depression (37.9%) 245 anxiety (29.8%) during their first visit. overall frequency peaked within 2 months after highest rate...
Numerous studies' attempts to improve radiation-induced oral mucositis have not produced a qualified treatment yet. Our aim was investigate the effectiveness of Korean red ginseng (KRG) on damage in an vivo rat model. After 20 Gy irradiation, rats were divided randomly into following 4 groups: control, KRG only, radiotherapy (RT) and RT + group. The monitored terms survival rate, activity, grade, intake, body weight. tongue, buccal mucosa, submandibular gland (SMG) harvested, weight SMG...
Purpose Parotid gland can be considered as a risk organ in whole brain radiotherapy (WBRT). The purpose of this study is to evaluate the parotid sparing effect computed tomography (CT)-based WBRT compared 2-dimensional plan with conventional field margin. Materials and Methods From January 2008 April 2011, 53 patients underwent using CT-based simulation. Bilateral two-field arrangement was used prescribed dose 30 Gy 10 fractions. We between 2 plans different lower margins: level atlas (CF)...
The purpose of this study was to investigate the prognostic effect pulmonary function at beginning postoperative radiotherapy (PORT) in non-small cell lung cancer (NSCLC).From January 2002 December 2012, 115 patients with NSCLC who underwent PORT and took forced expiratory volume 1 second (FEV1) were analysed. began within 4-6weeks following surgery, 3-dimensional conformal technique used conventional fractionation. high low FEV1 groups divided by median absolute value PORT, we compared...