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Kang H, Lee CS, Kim JG, Pak H. Saccadic eye movement speed is related to variations in phantom array effect visibility. Sci Rep 2023; 13:11576. [PMID: 37463941 DOI: 10.1038/s41598-023-38477-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 07/09/2023] [Indexed: 07/20/2023] Open
Abstract
The phantom array effect is one of the temporal light artefacts that can decrease performance and increase fatigue. The phantom array effect visibility shows large individual differences; however, the dominant factors that can explain these individual differences remain unclear. We investigated the relationship between saccadic eye movement speed and phantom array visibility at two different angles and four different directions of saccadic eye movement. The peak speed of saccadic eye movement and the phantom array effect visibility were measured at different modulation frequencies of the light source. Our results show that phantom array visibility increased as eye movement speed increased; the phantom array visibility was higher at a wide viewing angle with fast eye movement speed than at a narrow viewing angle. Moreover, when clustered into subgroups according to individual eye movement speed, the mean speed of the saccadic eye movement of each subgroup is related to the variations in the visibility of the phantom array effect of the subgroup. Therefore, saccadic eye movement speed is related to variations in phantom array effect visibility.
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Affiliation(s)
- Hyeran Kang
- Department of Electronic Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Chan-Su Lee
- Department of Electronic Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
- Department of Automotive Lighting Convergence Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - Jun-Gi Kim
- Department of Automotive Lighting Convergence Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Hyensou Pak
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan, 38541, Republic of Korea
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Kim J, Kim SC, Kang D, Kim SY, Kwon R, Yon DK, Kim JG. Feature extraction of time series data on functional near-infrared spectroscopy and comparison of deep learning performance for classifying patients with Alzheimer's-related mild cognitive impairment: a post-hoc analysis of a diagnostic interventional trial. Eur Rev Med Pharmacol Sci 2023; 27:6824-6830. [PMID: 37522693 DOI: 10.26355/eurrev_202307_33153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
OBJECTIVE This study aimed to define a method of classifying patients with mild cognitive impairment caused by Alzheimer's disease by the retrieval of functional near-infrared spectroscopy (fNIRS) signal characteristics obtained during olfactory stimulation and the validation of deep learning findings. PATIENTS AND METHODS Participants were recruited for the study from March 02 and August 30, 2021. A total of 78 participants met the criteria for categorization. The Mini-Mental State Examination and the Seoul Neuropsychological Scale were used to distinguish between patients with mild Alzheimer's disease-related cognitive impairment and healthy controls. fNIRS data received during olfactory stimulation were used to create 1,680 time-series sample values. A total of 150 indices with a p-value ≤ 0.1 were used as deep learning features to construct the result values for 120 models accounting for all conceivable combinations of data ratios. RESULTS For this trial, 78 participants were recruited for the original intervention trial. The average accuracy of the 120 deep-learning models for classifying patients with Alzheimer's-related mild cognitive impairment ranged from 0.78 to 0.90. Sensitivity ranged from 0.88 to 0.96 for the 120 models, while specificity ranged from 0.86 to 0.94. The F1 scores ranged from 0.74 to 0.88. At 0.78 to 0.90, the precision and recall were equivalent. CONCLUSIONS This trial using a deep-learning model found that the representative value extracted from the time series data of each channel could distinguish between healthy people and patients with mild cognitive impairment caused by Alzheimer's disease.
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Affiliation(s)
- J Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea.
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Kim J, Kim SC, Kang D, Yon DK, Kim JG. Classification of Alzheimer's disease stage using machine learning for left and right oxygenation difference signals in the prefrontal cortex: a patient-level, single-group, diagnostic interventional trial. Eur Rev Med Pharmacol Sci 2022; 26:7734-7741. [PMID: 36394721 DOI: 10.26355/eurrev_202211_30122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Recent evidence shows that indicators testing conventional olfactory function have a high degree of similarity to cognitive function tests and the potential to diagnose early-stage Alzheimer's disease (AD). In this study, the efficacy of functional near-infrared spectroscopy time-series data obtained through olfactory stimulation was investigated as an early diagnostic tool for mild cognitive impairment in AD using random forest, a machine learning algorithm. PATIENTS AND METHODS We conducted a patient-level, single-group, diagnostic interventional trial using near-infrared signals measured during olfactory stimulation in the prefrontal cortex of 178 older adults ranging from normal to participants with AD as markers to discriminate AD stages. We first divided the participants into normal older adults, AD mild cognitive impairment, and AD groups using dementia diagnostic criteria such as the Mini-Mental State Examination and Seoul Neuropsychological Screening Battery. We compared the left and right oxygenation difference by calculating the relative oxygenation difference from the change in relative oxygen concentration. RESULTS A total of 168 participants met the eligibility criteria: 70 (41.6%) had normal cognitive function; 42 (25%) mild cognitive impairment; 21 (12.5%) mild AD; and 35 (20.8%) moderate AD. A random forest machine learning model was developed to predict the AD stage, with an area under the receiver operating characteristic curve of 90.7% for mild cognitive impairment and AD, 90.99% for mild cognitive impairment, and 93.34% for AD only. CONCLUSIONS Based on the classification of the oxygenation difference index of the left and right prefrontal cortices during olfactory stimulation through machine learning, we found that it was possible to detect early-stage mild cognitive impairment in AD. Our results highlight the potential for early AD diagnosis using near-infrared signals from the prefrontal cortex obtained upon olfactory stimulation. Moreover, the results showed high similarity to the existing cognitive function tests and high accuracy in AD stage classification.
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Affiliation(s)
- J Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea.
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Son GM, Lee IY, Lee YS, Kye BH, Cho HM, Jang JH, Kim CN, Lee KY, Lee SH, Kim JG. Is Laparoscopic Complete Mesocolic Excision and Central Vascular Ligation Really Necessary for All Patients With Right-Sided Colon Cancer? Ann Coloproctol 2021; 37:434-444. [PMID: 34875818 PMCID: PMC8717068 DOI: 10.3393/ac.2021.00955.0136] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 11/15/2021] [Indexed: 02/08/2023] Open
Abstract
Colon cancer treatment is on the way to evolution over several decades. The minimally invasive surgery has improved postoperative short-term outcomes. Adjuvant chemotherapy has prolonged the survival of advanced colon cancer patients. Hohenberger proposed the noble concept of complete mesocolic excision (CME) which consists of 3 components: plane surgery, sufficient longitudinal bowel resection, and central vascular ligation (CVL). Mesocolic plane surgery shares the same surgical principle of total mesorectal excision, which is maintaining the intact mesothelial envelope. However, there remain debates about the extent of bowel resection and the level of CVL for maximizing lymph node dissection. There is no solid clinical evidence for the oncological necessity and benefit of extended radical dissection in right hemicolectomy. CME with CVL based on open surgery has been adopted in laparoscopic surgery. So, it is also necessary to look at how the CME could be transformed and successfully implanted in the laparoscopic era. Recent rapid advances in surgical technology and cancer biology are preparing for fundamental changes in cancer surgery. In this study, we reviewed the history, oncological necessity, and compatibility of CME for the right hemicolectomy in the laparoscopic era and outline the new perspectives on the evolution of cancer surgery.
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Affiliation(s)
- Gyung Mo Son
- Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine,Yangsan, Korea
| | - In Young Lee
- Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine,Yangsan, Korea
| | - Yoon Suk Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Bong-Hyeon Kye
- Division of Colorectal Surgery, Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Hyeon-Min Cho
- Division of Colorectal Surgery, Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Je-Ho Jang
- Department of Surgery, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea
| | - Chang-Nam Kim
- Department of Surgery, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea
| | - Kil Yeon Lee
- Department of Surgery, Kyung Hee University College of Medicine, Seoul, Korea
| | - Suk-Hwan Lee
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Surgery, Pyeongtaek St. Mary's Hospital, Pyeongtaek, Korea
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Lim EY, Song EJ, Kim JG, Jung SY, Lee SY, Shin HS, Nam YD, Kim YT. Lactobacillus intestinalis YT2 restores the gut microbiota and improves menopausal symptoms in ovariectomized rats. Benef Microbes 2021; 12:503-516. [PMID: 34463192 DOI: 10.3920/bm2020.0217] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
There are many studies focusing on the alleviation of menopausal symptoms; however, little is known about the role of gut microorganisms in menopausal symptoms. Ovariectomized (OVX) rats were administered a novel strain (YT2) of Lactobacillus intestinalis (a species with significantly reduced abundance in OVX rats) and the potential probiotic effect on the improvement of menopausal symptoms was evaluated. Of note, the gut microbial composition completely shifted after ovariectomy in rats. Treatment with L. intestinalis YT2 significantly alleviated menopausal symptoms, such as increased fat mass, decreased bone mineral density, increased pain sensitivity, depression-like behaviour, and cognitive impairment. Additionally, the administration of L. intestinalis YT2 restored the intestinal microbial composition, including an increased Firmicutes/Bacteroides ratio. L. intestinalis YT2 also promoted gut barrier integrity by increasing the mRNA levels of tight junction-related markers. In conclusion, L. intestinalis YT2 treatment alleviated menopausal symptoms via the modulation of the gut microbiota. Importantly, these results suggest that L. intestinalis YT2 should be considered as a therapeutic probiotic agent for menopausal women.
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Affiliation(s)
- E Y Lim
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - E-J Song
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - J G Kim
- Food Functional Evaluation Support Team, Technical Assistance Center, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - S Y Jung
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - S-Y Lee
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - H S Shin
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Y-D Nam
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Y T Kim
- Division of Food Functionality, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
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Kim JG, Park Y, Lee J, Ju JH, Kim WU, Park SH, Kwok SK. Re-evaluation of the prognostic significance of oropharyngeal dysphagia in idiopathic inflammatory myopathies. Scand J Rheumatol 2021; 51:402-410. [PMID: 34470549 DOI: 10.1080/03009742.2021.1941243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To investigate the prognostic significance of videofluorographic swallowing study (VFSS)-confirmed oropharyngeal dysphagia in idiopathic inflammatory myopathies (IIMs). METHOD We reviewed the medical records of patients who were diagnosed with IIM between 2009 and 2020 at Seoul St Mary's Hospital. All oropharyngeal dysphagia cases were limited to VFSS-confirmed dysphagia found during the initial diagnostic work-up for IIM. We described the findings on VFSS and the course of the dysphagic symptoms. Logistic regression and survival analyses were performed to evaluate the risk of pneumonia and mortality, respectively. RESULTS We found 88 patients with IIM who met the criteria. Among them, 17 patients (19%) had oropharyngeal dysphagia. Except for two cases lost to follow-up and one deceased case, all of the patients with dysphagia (14 of 14) had swallowing function restored within 6 months. The risk of pneumonia within 3 months from the diagnosis of IIM was significant [odds ratio = 4.49, 95% confidence interval (CI) 1.07-18.88]. The median follow-up duration was 34 and 27 months for the groups without and with dysphagia, respectively. The survival analysis failed to demonstrate that the presence of oropharyngeal dysphagia increased the risk of death (hazard ratio = 0.77, 95% CI: 0.085-7.00). CONCLUSIONS Oropharyngeal dysphagia found at the initial diagnosis of IIM improved within 3-6 months in nearly all cases. Furthermore, IIM patients who had oropharyngeal dysphagia at the initial diagnosis of IIM were not likely to have shorter survival, even if the risk of pneumonia was increased in the short term.
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Affiliation(s)
- J G Kim
- Division of Rheumatology, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Y Park
- Division of Rheumatology, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - J Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - J H Ju
- Division of Rheumatology, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - W-U Kim
- Division of Rheumatology, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - S-H Park
- Division of Rheumatology, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - S-K Kwok
- Division of Rheumatology, Department of Internal Medicine, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Choi JH, Jang HI, Jang JS, Jeon SH, Joo KK, Ju K, Jung DE, Kim JG, Kim JH, Kim JY, Kim SB, Kim SY, Kim W, Kwon E, Lee DH, Lee HG, Lim IT, Moon DH, Pac MY, Seo H, Seo JW, Shin CD, Yang BS, Yoo J, Yoon SG, Yeo IS, Yu I. Search for Sub-eV Sterile Neutrinos at RENO. Phys Rev Lett 2020; 125:191801. [PMID: 33216576 DOI: 10.1103/physrevlett.125.191801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
We report a search result for a light sterile neutrino oscillation with roughly 2200 live days of data in the RENO experiment. The search is performed by electron antineutrino (ν[over ¯]_{e}) disappearance taking place between six 2.8 GW_{th} reactors and two identical detectors located at 294 m (near) and 1383 m (far) from the center of the reactor array. A spectral comparison between near and far detectors can explore reactor ν[over ¯]_{e} oscillations to a light sterile neutrino. An observed spectral difference is found to be consistent with that of the three-flavor oscillation model. This yields limits on sin^{2}2θ_{14} in the 10^{-4}≲|Δm_{41}^{2}|≲0.5 eV^{2} region, free from reactor ν[over ¯]_{e} flux and spectrum uncertainties. The RENO result provides the most stringent limits on sterile neutrino mixing at |Δm_{41}^{2}|≲0.002 eV^{2} using the ν[over ¯]_{e} disappearance channel.
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Affiliation(s)
- J H Choi
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - H I Jang
- Department of Fire Safety, Seoyeong University, Gwangju 61268, Korea
| | - J S Jang
- GIST College, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - S H Jeon
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K K Joo
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - K Ju
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - D E Jung
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J G Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J H Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J Y Kim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - S B Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - S Y Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - W Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - E Kwon
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - D H Lee
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - H G Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - I T Lim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - D H Moon
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - M Y Pac
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J W Seo
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - C D Shin
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - B S Yang
- Institute for Basic Science, Daejeon 34047, Korea
| | - J Yoo
- Department of Physics, KAIST, Daejeon 34141, Korea
- Institute for Basic Science, Daejeon 34047, Korea
| | - S G Yoon
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - I S Yeo
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - I Yu
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
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Yang YY, Kim JG. Shade avoidance and reproductive strategies of an early successional species Penthorum chinense in relation to shade treatments. Plant Biol (Stuttg) 2020; 22:494-499. [PMID: 31872474 DOI: 10.1111/plb.13086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 12/12/2019] [Indexed: 06/10/2023]
Abstract
Shade avoidance is expected to be favoured under moderate light. However, in previous studies, shade avoidance was highest in the deepest shade, despite the fact that the plants incur the costs of shade avoidance without the benefits of being exposed to increased light. We performed shading experiments under different light intensities to understand: (i) how shade avoidance traits of Penthorum chinense could peak in moderate light, and (ii) if there was a trade-off between plant height and allocation of seeds along the light gradients. Penthorum chinense increased shade avoidance traits such as height per total dry mass as the amount of light decreased. Side stem number per total dry mass of P. chinense decreased as shade became deeper, from full light to low light. Regressions on seed mass fraction and height were significant with a linear model (y = -0.0006x + 0.1338). There were more resources allocated to seeds under low light than under moderate light. Penthorum chinense increased shade avoidance traits with the decrease in light amount, as found in previously studied species. There was a trade-off between height and production of more seeds. The reproductive strategy of P. chinense was to increase seed mass fraction under low light more than under moderate light. This species might be able to expand established populations by both rhizomes and seeds under low light environments.
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Affiliation(s)
- Y Y Yang
- Graduate School of Interdisciplinary Program in Environmental Education, Seoul National University, Seoul, Korea
| | - J G Kim
- Graduate School of Interdisciplinary Program in Environmental Education, Seoul National University, Seoul, Korea
- Department of Biology Education, Seoul National University, Seoul, Korea
- Center for Education Research, Seoul National University, Seoul, Korea
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Son GM, Kim JG, Kye BH, Kim MK. Reconsideration of the oncologic safety of laparoscopic rectal cancer surgery. Ann Coloproctol 2019. [DOI: 10.3393/ac.2019.10.16.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Abstract
The oncological outcomes of laparoscopic rectal cancer surgery were evaluated in recent multicenter randomized clinical trials (RCTs). The MRC-CLASSIC, COLOR II, and COREAN trials found no differences in local recurrence or diseasefree survival rate between laparoscopic and open surgery. However, the noninferiority of laparoscopic surgery with respect to open surgery for rectal cancer was not established on statistical analysis in the ACOSOG Z6051 and the ALaCaRT trials. Quality of total mesorectal excision (TME) is one of the most important prognostic factors. Incomplete TME had unfavorable oncologic outcomes compared to complete TME. Although TME quality can be clearly identified on pathologic evaluation, there is controversy regarding the acceptable range of oncologically safe TME for laparoscopic surgery. It is not certain whether near-complete TME has an unfavorable oncologic impact and whether laparoscopic surgery with near-complete TME is an oncological threat. Therefore, the surgical community will be interested in the long-term outcomes and meta-analyses of ongoing large-scale RCTs. Laparoscopic rectal cancer surgery has been steadily improving its safety for oncology surgery, which has been reported consistently in various multicenter RCTs. To improve surgical quality, colorectal surgeons should choose the most appropriate surgical technique, including laparoscopic surgery.
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Affiliation(s)
- Gyung Mo Son
- Department of Surgery, Pusan National University Yangsan Hospital, Pusan National University College of Medicine, Busan, Korea
| | - Bong-Hyeon Kye
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University, Seoul, Korea
| | - Min Ki Kim
- Department of Surgery, Myongji Hospital, Hanyang University College of Medicine, Goyang, Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kang YK, Ryu MH, Park SH, Kim JG, Kim JW, Cho SH, Park YI, Park SR, Rha SY, Kang MJ, Cho JY, Kang SY, Roh SY, Ryoo BY, Nam BH, Jo YW, Yoon KE, Oh SC. Efficacy and safety findings from DREAM: a phase III study of DHP107 (oral paclitaxel) versus i.v. paclitaxel in patients with advanced gastric cancer after failure of first-line chemotherapy. Ann Oncol 2019; 29:1220-1226. [PMID: 29438463 DOI: 10.1093/annonc/mdy055] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Paclitaxel is currently only available as an intravenous (i.v.) formulation. DHP107 is a novel oral formulation of lipid ingredients and paclitaxel. DHP107 demonstrated comparable efficacy, safety, and pharmacokinetics to i.v. paclitaxel as a second-line therapy in patients with advanced gastric cancer (AGC). DREAM is a multicenter, open-label, prospective, randomized phase III study of patients with histologically/cytologically confirmed, unresectable/recurrent AGC after first-line therapy failure. Methods and materials Patients were randomized 1 : 1 to DHP107 (200 mg/m2 orally twice daily days 1, 8, 15 every 4 weeks) or i.v. paclitaxel (175 mg/m2 day 1 every 3 weeks). Patients were stratified by Eastern Cooperative Oncology Group performance status, disease status, and prior treatment; response was assessed (Response Evaluation Criteria in Solid Tumors) every 6 weeks. Primary end point: non-inferiority of progression-free survival (PFS); secondary end points: overall response rate (ORR), overall survival (OS), and safety. For the efficacy analysis, sequential tests for non-inferiority were carried out, first with a non-inferiority margin of 1.48, then with a margin of 1.25. Results Baseline characteristics were balanced in the 236 randomized patients (n = 118 per arm). Median PFS (per-protocol) was 3.0 (95% CI 1.7-4.0) months for DHP107 and 2.6 (95% CI 1.8-2.8) months for paclitaxel (hazard ratio [HR] = 0.85; 95% CI 0.64-1.13). A sensitivity analysis on PFS using independent central review showed similar results (HR = 0.93; 95% CI 0.70-1.24). Median OS (full analysis set) was 9.7 (95% CI 7.1 - 11.5) months for DHP107 versus 8.9 (95% CI 7.1-12.2) months for paclitaxel (HR = 1.04; 95% CI 0.76-1.41). ORR was 17.8% for DHP107 (CR 4.2%; PR 13.6%) versus 25.4% for paclitaxel (CR 3.4%; PR 22.0%). Nausea, vomiting, diarrhea, and mucositis were more common with DHP107; peripheral neuropathy was more common with paclitaxel. There were only few Grade≥3 adverse events, most commonly neutropenia (42% versus 53%); febrile neutropenia was reported infrequently (5.9% versus 2.5%). No hypersensitivity reactions occurred with DHP107 (paclitaxel 2.5%). Conclusions DHP107 as a second-line treatment of AGC was non-inferior to paclitaxel for PFS; other efficacy and safety parameters were comparable. DHP107 is the first oral paclitaxel with proven efficacy/safety for the treatment of AGC. ClinicalTrials.gov NCT01839773.
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Affiliation(s)
- Y-K Kang
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul.
| | - M-H Ryu
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - S H Park
- Department of Hematology-Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - J G Kim
- Department of Oncology-Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu
| | - J W Kim
- Department of Hematology-Oncology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Bundang
| | - S-H Cho
- Department of Oncology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun
| | - Y-I Park
- Department of Hematology-Oncology, Center for Gastric Cancer, National Cancer Center, Goyang
| | - S R Park
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - S Y Rha
- Department of Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul
| | - M J Kang
- Department of Hematology-Oncology, Haeundai Paik Hospital, University of Inje College of Medicine, Busan
| | - J Y Cho
- Department of Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul
| | - S Y Kang
- Department of Hematology-Oncology, Ajou University School of Medicine, Ajou University Hospital, Suwon
| | - S Y Roh
- Department of Oncology, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul
| | - B-Y Ryoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - B-H Nam
- Biometric Research Branch, National Cancer Center, Goyang
| | - Y-W Jo
- Clinical Trials Department, DAEHWA Pharmaceutical Company Co., Ltd, Seoul
| | - K-E Yoon
- Clinical Trials Department, DAEHWA Pharmaceutical Company Co., Ltd, Seoul
| | - S C Oh
- Department of Oncology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, South Korea
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12
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Kim JT, Cho BH, Choi KH, Park MS, Kim BJ, Park JM, Kang K, Lee SJ, Kim JG, Cha JK, Kim DH, Nah HW, Park TH, Park SS, Lee KB, Lee J, Hong KS, Cho YJ, Park HK, Lee BC, Yu KH, Oh MS, Kim DE, Ryu WS, Choi JC, Kwon JH, Kim WJ, Shin DI, Sohn SI, Hong JH, Lee JS, Lee J, Bae HJ, Saver JL, Cho KH. Association between time to treatment and functional outcomes according to the Diffusion-Weighted Imaging Alberta Stroke Program Early Computed Tomography Score in endovascular stroke therapy. Eur J Neurol 2019; 27:343-351. [PMID: 31535427 DOI: 10.1111/ene.14083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 09/03/2019] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND PURPOSE The rate at which the chance of a good outcome of endovascular stroke therapy (EVT) decays with time when eligible patients are selected by baseline diffusion-weighted magnetic resonance imaging (DWI-MRI) and whether ischaemic core size affects this rate remain to be investigated. METHODS This study analyses a prospective multicentre registry of stroke patients treated with EVT based on pretreatment DWI-MRI that was categorized into three groups: small [Diffusion-Weighted Imaging Alberta Stroke Program Early Computed Tomography Score (DWI-ASPECTS)] (8-10), moderate (5-7) and large (<5) cores. The main outcome was a good outcome at 90 days (modified Rankin Scale 0-2). The interaction between onset-to-groin puncture time (OTP) and DWI-ASPECTS categories regarding functional outcomes was investigated. RESULTS Ultimately, 985 patients (age 69 ± 11 years; male 55%) were analysed. Potential interaction effects between the DWI-ASPECTS categories and OTP on a good outcome at 90 days were observed (Pinteraction = 0.06). Every 60-min delay in OTP was associated with a 16% reduced likelihood of a good outcome at 90 days amongst patients with large cores, although no associations were observed amongst patients with small to moderate cores. Interestingly, the adjusted rates of a good outcome at 90 days steeply declined between 65 and 213 min of OTP and then remained smooth throughout 24 h of OTP (Pnonlinearity = 0.15). CONCLUSIONS Our study showed that the probability of a good outcome after EVT nonlinearly decreased, with a steeper decline at earlier OTP than at later OTP. Discrepant effects of OTP on functional outcomes by baseline DWI-ASPECTS categories were observed. Thus, different strategies for EVT based on time and ischaemic core size are warranted.
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Affiliation(s)
- J-T Kim
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - B-H Cho
- Department of Neurology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - K-H Choi
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - M-S Park
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - B J Kim
- Department of Neurology, Cerebrovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - J-M Park
- Department of Neurology, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
| | - K Kang
- Department of Neurology, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
| | - S J Lee
- Department of Neurology, Eulji University Hospital, Eulji University, Daejeon, Korea
| | - J G Kim
- Department of Neurology, Eulji University Hospital, Eulji University, Daejeon, Korea
| | - J-K Cha
- Department of Neurology, Dong-A University Hospital, Busan, Korea
| | - D-H Kim
- Department of Neurology, Dong-A University Hospital, Busan, Korea
| | - H-W Nah
- Department of Neurology, Dong-A University Hospital, Busan, Korea
| | - T H Park
- Department of Neurology, Seoul Medical Center, Seoul, Korea
| | - S-S Park
- Department of Neurology, Seoul Medical Center, Seoul, Korea
| | - K B Lee
- Department of Neurology, Soonchunhyang University Hospital, Seoul, Korea
| | - J Lee
- Department of Neurology, Yeungnam University Hospital, Daegu, Korea
| | - K-S Hong
- Department of Neurology, Ilsan Paik Hospital, Inje University, Goyang, Korea
| | - Y-J Cho
- Department of Neurology, Ilsan Paik Hospital, Inje University, Goyang, Korea
| | - H-K Park
- Department of Neurology, Ilsan Paik Hospital, Inje University, Goyang, Korea
| | - B-C Lee
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - K-H Yu
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - M S Oh
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - D-E Kim
- Department of Neurology, Dongguk University Ilsan Hospital, Goyang, Korea
| | - W-S Ryu
- Department of Neurology, Dongguk University Ilsan Hospital, Goyang, Korea
| | - J C Choi
- Department of Neurology, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea
| | - J-H Kwon
- Department of Neurology, Ulsan University College of Medicine, Ulsan, Korea
| | - W-J Kim
- Department of Neurology, Ulsan University College of Medicine, Ulsan, Korea
| | - D-I Shin
- Department of Neurology, Chungbuk National University Hospital, Cheongju, Korea
| | - S I Sohn
- Department of Neurology, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - J-H Hong
- Department of Neurology, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - J S Lee
- Department of Neurology, Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Lee
- Department of Neurology, Department of Biostatistics, Korea University College of Medicine, Seoul, Korea
| | - H-J Bae
- Department of Neurology, Cerebrovascular Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - J L Saver
- Department of Neurology, Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - K-H Cho
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
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Kim MK, Kim JG, Lee G, Won DD, Lee YS, Kye BH, Kim J, Lee IK. Comparison of the effects of an ERAS program and a single-port laparoscopic surgery on postoperative outcomes of colon cancer patients. Sci Rep 2019; 9:11998. [PMID: 31427651 PMCID: PMC6700146 DOI: 10.1038/s41598-019-48526-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 08/05/2019] [Indexed: 12/22/2022] Open
Abstract
Advancement of the surgical modality and perioperative care are the two main dimensions for the modern improvement of surgical outcome. The purpose of this study was to compare the effectiveness of the two by using the data from the single-port laparoscopic surgery and the early recovery after surgery (ERAS) program. Patients who underwent elective surgery for primary adenocarcinoma of the colon were divided into three groups and compared: ERAS (multi-port laparoscopic surgery with ERAS perioperative care), Conventional-SILS (single-port surgery with conventional perioperative care), or Conventional-Multi (multi-port laparoscopic surgery with conventional perioperative care). Ninety-one, 83, and 96 patients were registered, respectively. There were no differences among the three groups in baseline characteristics except pathological stage and operation site in colon. Although the ERAS group started a soft diet earlier and had earlier discharge, there were no differences in intra- and post-operative morbidity rate, readmission rate, or reoperation rate. The ERAS perioperative care was a significant factor for reducing length of hospital stay in the multivariate analysis, while single-port surgery was not. In modern laparoscopic colon cancer treatment, a systemic approach such as the ERAS program appears to be more effective than a technical approach for significantly improving short-term surgical outcomes.
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Affiliation(s)
- Min Ki Kim
- Department of Surgery, Myongji Hospital, Goyang, Republic of Korea
| | - Jun-Gi Kim
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Gyeora Lee
- Department of Surgery, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Daeyoun David Won
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoon Suk Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Bong-Hyeon Kye
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jihoon Kim
- Department of Surgery, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - In Kyu Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Bae JH, Kim JG, Lee YS. Transverse colectomy using indocyanine green with flexure-mobilization first approach. Ann Laparosc Endosc Surg 2019. [DOI: 10.21037/ales.2019.07.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Bak G, Choi JH, Jang HI, Jang JS, Jeon SH, Joo KK, Ju K, Jung DE, Kim JG, Kim JH, Kim JY, Kim SB, Kim SY, Kim W, Kwon E, Lee DH, Lee HG, Lee YC, Lim IT, Moon DH, Pac MY, Park YS, Rott C, Seo H, Seo JW, Seo SH, Shin CD, Yang JY, Yoo J, Yu I. Fuel-Composition Dependent Reactor Antineutrino Yield at RENO. Phys Rev Lett 2019; 122:232501. [PMID: 31298906 DOI: 10.1103/physrevlett.122.232501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 05/16/2019] [Indexed: 06/10/2023]
Abstract
We report a fuel-dependent reactor electron antineutrino (ν[over ¯]_{e}) yield using six 2.8 GW_{th} reactors in the Hanbit nuclear power plant complex, Yonggwang, Korea. The analysis uses 850 666 ν[over ¯]_{e} candidate events with a background fraction of 2.0% acquired through inverse beta decay (IBD) interactions in the near detector for 1807.9 live days from August 2011 to February 2018. Based on multiple fuel cycles, we observe a fuel ^{235}U dependent variation of measured IBD yields with a slope of (1.51±0.23)×10^{-43} cm^{2}/fission and measure a total average IBD yield of (5.84±0.13)×10^{-43} cm^{2}/fission. The hypothesis of no fuel-dependent IBD yield is ruled out at 6.6σ. The observed IBD yield variation over ^{235}U isotope fraction does not show significant deviation from the Huber-Mueller (HM) prediction at 1.3 σ. The measured fuel-dependent variation determines IBD yields of (6.15±0.19)×10^{-43} and (4.18±0.26)×10^{-43} cm^{2}/fission for two dominant fuel isotopes ^{235}U and ^{239}Pu, respectively. The measured IBD yield per ^{235}U fission shows the largest deficit relative to the HM prediction. Reevaluation of the ^{235}U IBD yield per fission may mostly solve the reactor antineutrino anomaly (RAA) while ^{239}Pu is not completely ruled out as a possible contributor to the anomaly. We also report a 2.9 σ correlation between the fractional change of the 5 MeV excess and the reactor fuel isotope fraction of ^{235}U.
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Affiliation(s)
- G Bak
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - J H Choi
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - H I Jang
- Department of Fire Safety, Seoyeong University, Gwangju 61268, Korea
| | - J S Jang
- GIST College, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - S H Jeon
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K K Joo
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - K Ju
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - D E Jung
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J G Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J H Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J Y Kim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - S B Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - S Y Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - W Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - E Kwon
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - D H Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H G Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - Y C Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - I T Lim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - D H Moon
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - M Y Pac
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - Y S Park
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J W Seo
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - S H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - C D Shin
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - J Y Yang
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J Yoo
- Institute for Basic Science, Daejeon 34047, Korea
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - I Yu
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
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16
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Bak G, Choi JH, Jang HI, Jang JS, Jeon SH, Joo KK, Ju K, Jung DE, Kim JG, Kim JH, Kim JY, Kim SB, Kim SY, Kim W, Kwon E, Lee DH, Lee HG, Lee YC, Lim IT, Moon DH, Pac MY, Park YS, Rott C, Seo H, Seo JW, Seo SH, Shin CD, Yang JY, Yoo J, Yu I. Measurement of Reactor Antineutrino Oscillation Amplitude and Frequency at RENO. Phys Rev Lett 2018; 121:201801. [PMID: 30500262 DOI: 10.1103/physrevlett.121.201801] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/13/2018] [Indexed: 06/09/2023]
Abstract
The RENO experiment reports more precisely measured values of θ_{13} and |Δm_{ee}^{2}| using ∼2200 live days of data. The amplitude and frequency of reactor electron antineutrino (ν[over ¯]_{e}) oscillation are measured by comparing the prompt signal spectra obtained from two identical near and far detectors. In the period between August 2011 and February 2018, the far (near) detector observed 103 212 (850 666) ν[over ¯]_{e} candidate events with a background fraction of 4.8% (2.0%). A clear energy and baseline dependent disappearance of reactor ν[over ¯]_{e} is observed in the deficit of the measured number of ν[over ¯]_{e}. Based on the measured far-to-near ratio of prompt spectra, we obtain sin^{2}2θ_{13}=0.0896±0.0048(stat)±0.0047(syst) and |Δm_{ee}^{2}|=[2.68±0.12(stat)±0.07(syst)]×10^{-3} eV^{2}.
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Affiliation(s)
- G Bak
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - J H Choi
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - H I Jang
- Department of Fire Safety, Seoyeong University, Gwangju 61268, Korea
| | - J S Jang
- GIST College, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - S H Jeon
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K K Joo
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - K Ju
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - D E Jung
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J G Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J H Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J Y Kim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - S B Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - S Y Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - W Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - E Kwon
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - D H Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H G Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - Y C Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - I T Lim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - D H Moon
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - M Y Pac
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - Y S Park
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J W Seo
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - S H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - C D Shin
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - J Y Yang
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J Yoo
- Institute for Basic Science, Daejeon 34047, Korea
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - I Yu
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
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Jia ZY, Song YS, Sheen JJ, Kim JG, Lee DH, Suh DC. Cannulation of Occluded Inferior Petrosal Sinuses for the Transvenous Embolization of Cavernous Sinus Dural Arteriovenous Fistulas: Usefulness of a Frontier-Wire Probing Technique. AJNR Am J Neuroradiol 2018; 39:2301-2306. [PMID: 30385474 DOI: 10.3174/ajnr.a5868] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 09/18/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Pursuing an alternative access route for transvenous embolization of cavernous sinus dural arteriovenous fistulas can be challenging in patients with an occluded inferior petrosal sinus. We found that cannulation of even a completely occluded inferior petrosal sinus is feasible, especially when using a standard hydrophilic-polymer-jacketed 0.035-inch guidewire as a frontier-wire for probing. MATERIALS AND METHODS From 2002 to 2017, the frontier-wire technique was tried in 52 patients with occluded inferior petrosal sinuses for transvenous embolization of cavernous sinus dural arteriovenous fistulas at our center. Technical success was defined as access into the affected cavernous sinus compartment with a microcatheter through the occluded inferior petrosal sinus and deployment of at least 1 coil. The complications and treatment outcomes were analyzed. RESULTS The frontier-wire technique was applied in 52 patients with 57 occluded inferior petrosal sinuses (52 ipsilateral and 5 contralateral inferior petrosal sinuses). Technical success rates were 80.8% (42/52) of patients and 73.7% (42/57) of inferior petrosal sinuses. Alternative transvenous routes were used in 3 patients, and transarterial access was used in 7 patients. Complete embolization of fistulas was achieved in 82.2% (37/45) of patients in the transvenous embolization group and in 14.3% (1/7) of patients in the transarterial group. No procedure-related morbidity or mortality was observed. CONCLUSIONS Transvenous embolization of cavernous sinus dural arteriovenous fistulas, even through a completely occluded inferior petrosal sinus, is feasible. The difficulty of passing the microcatheter can be minimized by prior probing of the occluded inferior petrosal sinus using a standard 0.035-inch guidewire; the trace of the guidewire on the roadmap image serves as a guide for microcatheter navigation through the inferior petrosal sinus on fluoroscopy.
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Affiliation(s)
- Z Y Jia
- From the Department of Radiology and Research Institute of Radiology (Z.Y.J., Y.S.S., J.J.S., J.G.K., D.H.L., D.C.S.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Department of Radiology (Z.Y.J., Y.S.S.), The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Y S Song
- From the Department of Radiology and Research Institute of Radiology (Z.Y.J., Y.S.S., J.J.S., J.G.K., D.H.L., D.C.S.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Department of Radiology (Z.Y.J., Y.S.S.), The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - J J Sheen
- From the Department of Radiology and Research Institute of Radiology (Z.Y.J., Y.S.S., J.J.S., J.G.K., D.H.L., D.C.S.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J G Kim
- From the Department of Radiology and Research Institute of Radiology (Z.Y.J., Y.S.S., J.J.S., J.G.K., D.H.L., D.C.S.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - D H Lee
- From the Department of Radiology and Research Institute of Radiology (Z.Y.J., Y.S.S., J.J.S., J.G.K., D.H.L., D.C.S.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - D C Suh
- From the Department of Radiology and Research Institute of Radiology (Z.Y.J., Y.S.S., J.J.S., J.G.K., D.H.L., D.C.S.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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An M, Kim JG, Kim J. Measure of processes of care (MPOC): Translation and validation for use in Korea. Child Care Health Dev 2018; 44:545-551. [PMID: 29913052 DOI: 10.1111/cch.12577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 04/11/2018] [Accepted: 04/13/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND The measure of processes of care (MPOC) is a widely used instrument to assess parents' perception of the extent to which healthcare services they and their child receive are family centred. The purpose of this study was to examine the reliability and validity of the Korean translation of the MPOC (Korean MPOC). METHODS The Korean MPOC was completed by 198 parents of children receiving rehabilitation services in five provinces in South Korea. According to the Canadian validation procedures, analyses for internal consistency, construct and concurrent validity, and test-retest reliability were performed. RESULTS The Korean MPOC demonstrated adequate internal consistency, with Cronbach's alpha ranging from .85 to .98. Confirmative analyses of the scale structure support the construct validity of the Korean MPOC. The Pearson correlations r between the MPOC scale scores and Client Satisfaction Inventory score ranged from .60 to .83, supporting the concurrent validity of the Korean MPOC. The intraclass correlation coefficients were greater than .80 for all five scales, demonstrating good test-retest reliability. CONCLUSIONS The Korean MPOC has good psychological properties and can be recommended for evaluation of processes of paediatric rehabilitation in Korea.
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Affiliation(s)
- M An
- Department of Physical Therapy, Rangos School of Health Sciences, Duquesne University, Pittsburgh, PA, USA
| | - J G Kim
- Department of Physical Therapy, U1 University, Chungcheongbuk-do, Korea
| | - J Kim
- Department of Physical Therapy, College of Rehabilitation Science, Daegu University, Daegudae-ro, Jillyang-eup, Gyeongsan-si, Gyeongsangbuk-do, Korea
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Kye BH, Kim JG, Cho HM, Kim HJ, Chun CS. Laparoscopic Abdominal Transanal Proctocolectomy with Coloanal Anastomosis Is a Good Surgical Option in Selective Patients with Low-Lying Rectal Cancer: A Retrospective Analysis Based on a Single Surgeon's Experience. J Laparoendosc Adv Surg Tech A 2018; 28:269-277. [DOI: 10.1089/lap.2017.0226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Bong-Hyeon Kye
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jun-Gi Kim
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyeon-Min Cho
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyung-Jin Kim
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chung-Soo Chun
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Jung CK, Jung SH, Yim SH, Jung JH, Choi HJ, Kang WK, Park SW, Oh ST, Kim JG, Lee SH, Chung YJ. Predictive microRNAs for lymph node metastasis in endoscopically resectable submucosal colorectal cancer. Oncotarget 2017; 7:32902-15. [PMID: 27096956 PMCID: PMC5078061 DOI: 10.18632/oncotarget.8766] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 03/28/2016] [Indexed: 12/19/2022] Open
Abstract
Accurate prediction of regional lymph node metastasis (LNM) in endoscopically resected T1-stage colorectal cancers (CRCs) can reduce unnecessary surgeries. To identify miRNA markers that can predict LNM in T1-stage CRCs, the study was conducted in two phases; (I) miRNA classifier construction by miRNA-array and quantitative reverse transcription PCR (qRT-PCR) using 36 T1-stage CRC samples; (II) miRNA classifier validation in an independent set of 20 T1-stage CRC samples. The expression of potential downstream target genes of miRNAs was assessed by immunohistochemistry. In the discovery analysis by miRNA microarray, expression of 66 miRNAs were significantly different between LNM-positive and negative CRCs. After qRT-PCR validation, 11 miRNAs were consistently significant in the combined classifier construction set. Among them, miR-342-3p was the most significant one (P=4.3×10-4). Through logistic regression analysis, we developed a three-miRNA classifier (miR-342-3p, miR-361-3p, and miR-3621) for predicting LNM in T1-stage CRCs, yielding the area under the curve of 0.947 (94% sensitivity, 85% specificity and 89% accuracy). The discriminative ability of this system was consistently reliable in the independent validation set (83% sensitivity, 64% specificity and 70% of accuracy). Of the potential downstream targets of the three-miRNAs, expressions of E2F1, RAP2B, and AKT1 were significantly associated with LNM. In conclusion, this classifier can predict LNM more accurately than conventional pathologic criteria and our study results may be helpful to avoid unnecessary bowel surgery after endoscopic resection in early CRC.
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Affiliation(s)
- Chan Kwon Jung
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Seung-Hyun Jung
- Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.,Integrated Research Center for Genome Polymorphism, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.,Cancer Evolution Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Seon-Hee Yim
- Integrated Research Center for Genome Polymorphism, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Ji-Han Jung
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Hyun Joo Choi
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Won-Kyung Kang
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sung-Won Park
- Integrated Research Center for Genome Polymorphism, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.,Cancer Evolution Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Seong-Taek Oh
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jun-Gi Kim
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sug Hyung Lee
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.,Cancer Evolution Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Yeun-Jun Chung
- Department of Microbiology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.,Integrated Research Center for Genome Polymorphism, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
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Kim MK, Lee IK, Kye BH, Kim JG. Procedural difficulty differences according to tumor location do not compromise the clinical outcome of laparoscopic complete mesocolic excision for colon cancer: a retrospective analysis. Oncotarget 2017; 8:64509-64519. [PMID: 28969090 PMCID: PMC5610022 DOI: 10.18632/oncotarget.19780] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 07/18/2017] [Indexed: 12/18/2022] Open
Abstract
Laparoscopic colectomy procedures and their corresponding difficulty levels may vary depending on the tumor location within the colon, and a laparoscopic complete mesocolic excision (CME) with central vascular ligation (CVL) would require more proficiency than a conventional laparoscopic colectomy. We aimed to report our laparoscopic CME with CVL data and to investigate the clinical outcome differences of laparoscopic CME with CVL by various tumor sub-site locations. Prospectively collected clinical data of consecutive patients who received laparoscopic colectomy for primary colon cancer between April 1995 and December 2010 from single surgeon were retrospectively reviewed. All of the included surgery was performed on the basis of CME with CVL principle with no-touch isolation technique. Data were analyzed and compared among three groups; patients who received right or extended right hemicolectomy (group A, n = 142), transverse colectomy or left or extended left hemicolectomy (group B, n = 59), and sigmoidectomy or anterior resection (group C, n = 210). Female patients were more common in group A (53.5% vs. 37.3% vs. 39.5%, p = 0.020). Other baseline characteristics were comparable. Operative time was shorter in group C than the other groups (309.0 ± 74.7 vs. 324.3 ± 89.1 vs. 280.1 ± 93.1 min, p = 0.000). There was no significant difference among groups in perioperative complication and patient recovery. Five-year overall survival, disease-free survival and local recurrence rate showed no difference for a median follow up period of 73 (1–120) months. In conclusion, laparoscopic tumor-specific CME and CVL for colon cancer can be performed with comparable short- and long-term outcomes regardless of tumor sub-site location except for the operative time.
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Affiliation(s)
- Min Ki Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - In Kyu Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Bong-Hyeon Kye
- Department of Surgery, St. Vincent Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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22
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Kim MK, Lee IK, Kang WK, Cho HM, Kye BH, Jalloun HE, Kim JG. Long-term oncologic outcomes of laparoscopic surgery for splenic flexure colon cancer are comparable to conventional open surgery. Ann Surg Treat Res 2017; 93:35-42. [PMID: 28706889 PMCID: PMC5507789 DOI: 10.4174/astr.2017.93.1.35] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/21/2017] [Accepted: 02/01/2017] [Indexed: 01/31/2023] Open
Abstract
Purpose Few studies about laparoscopic surgery for splenic flexure colon cancer have been published. This study aims to compare the short- and long-term outcomes of laparoscopic surgery for splenic flexure colon cancer with those of conventional open surgery. Methods From January 2004 to December 2010, 51 consecutive patients who underwent curative resection for stages I–III splenic flexure colon cancer were enrolled. Thirty-three patients underwent laparoscopy-assisted colectomy, while 18 patients underwent conventional open colectomy. Short- and long-term outcomes of the 2 groups were compared. Results There were no differences in baseline characteristics, intra- and postoperative complications. The laparoscopy group showed longer operation time (median [interquartile range, IQR]: 295.0 [255.0–362.5] minutes vs. 180.0 [168.8–206.3] minutes, P < 0.001). In the laparoscopy group, return of bowel function was faster (median [IQR]: 3 [2–4] vs. 4 [3–5], P = 0.007) and postoperative hospital stay was shorter (median [IQR]: 9 [8–11] vs. 10.5 [9–19], P = 0.026). There were no statistically significant differences in overall survival rate (84.3% vs. 76.0%, P = 0.560) or disease-free survival rate (93.8% vs. 74.5%, P = 0.078) between the 2 groups. Conclusion Laparoscopic surgery for splenic flexure colon cancer has better short-term outcomes than open surgery, as well as acceptable long-term outcomes. Laparoscopic surgery can be a safe and feasible alternative to conventional open surgery for splenic flexure colon cancer.
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Affiliation(s)
- Min Ki Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - In Kyu Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Won-Kyung Kang
- Department of Surgery, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyeon-Min Cho
- Department of Surgery, St. Vincent Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Bong-Hyeon Kye
- Department of Surgery, St. Vincent Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Heba Essam Jalloun
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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23
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Kim IH, Lee JE, Yang JH, Jeong JW, Ro S, Oh ST, Kim JG, Choi MH, Lee MA. Clinical Significance of Discordance between Carcinoembryonic Antigen Levels and RECIST in Metastatic Colorectal Cancer. Cancer Res Treat 2017; 50:283-292. [PMID: 28494536 PMCID: PMC5784620 DOI: 10.4143/crt.2016.537] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 04/11/2017] [Indexed: 02/07/2023] Open
Abstract
Purpose The purpose of this study was to investigate the prognostic implications of carcinoembryonic antigen (CEA) levels that are inconsistent with Response Evaluation Criteria in Solid Tumor (RECIST) responses in metastatic colorectal cancer patients. Materials and Methods We retrospectively evaluated 360 patients with at least one measurable lesion who received first-line palliative chemotherapy. CEA-response was defined as CEA-complete response (CR; CEA normalization), CEA-partial response (PR; ≥ 50% decrease in CEA levels), CEA-progressive disease (PD; ≥ 50% increase in CEA levels), and CEA-stable disease (SD; non-CR/PR/PD). Overall survival (OS) and progression-free survival (PFS) were evaluated according to CEA-response. Results In RECIST-PR patients, poorer CEA-response was associated with disease progression at the subsequent evaluation. In RECIST-SD patients, CEA-CR and -PR were associated with lower disease progression rates than CEA-PD at the subsequent evaluation. Correlations between survival outcome and CEA-response in same-category RECIST patients were assessed. In RECIST-PR patients, discordant CEA-response (CEA-PD/SD) was associated with poorer survival than CEA-CR/PR (median OS and PFS, 44.0 and 15.4 [CEA-CR], 28.9 and 12.5 [CEA-PR], 21.0 and 9.8 [CEA-SD], and 13.0 and 7.0 [CEA-PD] months, respectively; all p < 0.001). In RECIST-SD patients, favorable CEA-response produced better survival (median OS and PFS, 26.8 and 21.0 [CEA-CR], 21.0 and 11.0 [CEA-PR], 16.1 and 8.2 [CEA-SD], and 12.2 and 6.0 [CEA-PD] months, respectively; all p < 0.001). RECIST-PD patients with CEA-CR showed longer OS than those with CEA-PD. Multivariate analysis demonstrated that discordant CEA-response is a powerful prognostic factor for RECIST-PR and RECIST-SD patients. Conclusion Among patients of the same RECIST-response categories, CEA-response patterns are significantly prognostic and strongly predictive of subsequent evaluation outcomes.
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Affiliation(s)
- In-Ho Kim
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji Eun Lee
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji Hyun Yang
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Joon Won Jeong
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sangmi Ro
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seong Taek Oh
- Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jun-Gi Kim
- Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Moon Hyung Choi
- Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Myung Ah Lee
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Colorectal Cancer Centre, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Cancer Research Institute, The Catholic University of Korea College of Medicine, Seoul, Korea
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24
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Kim JG, Park JY. Morphological characteristics of visual cells in the endemic Korean loach Kichulchoia multifasciata (Pisces; Cobitidae) by microscopy. Folia Morphol (Warsz) 2016; 76:186-190. [PMID: 27813623 DOI: 10.5603/fm.a2016.0072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 10/06/2016] [Indexed: 11/25/2022]
Abstract
The visual cell of the retina in the Korean loach Kichulchoia multifasciata, a bottom-dwelling freshwater loach in shallow water, contains double cones and large rods. With light microscopy, the cones form a row mosaic pattern in which the partners of double cones are linearly oriented with a large rod. In a double cone or twin cone, the two members are unequal such that one cone may be longer than the other. An anatomical unit is apparent which consists of 5 rod cells and 15 double cone cells per 20 × 20 μm area. We found that the cone cells of outer segments are linked to the inner segment by so-called "calyceal process" using a scanning electron microscopy, unlike rod cells. In the transmission electron microscopy, the outer membrane shows piles of membrane discs surrounded by double membranes.
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Affiliation(s)
| | - J Y Park
- Department of Biological Science and Institute for Biodiversity Research, College of Natural Sciences, Chonbuk National University, Jeonju, Republic of Korea, Korea, Republic Of.
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25
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Kim CW, Lee KY, Lee SC, Lee SH, Lee YS, Lim SW, Kim JG. Learning curve for single-port laparoscopic colon cancer resection: a multicenter observational study. Surg Endosc 2016; 31:1828-1835. [DOI: 10.1007/s00464-016-5180-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 08/10/2016] [Indexed: 02/06/2023]
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26
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Suh DH, Han KD, Hong JY, Park JH, Bae JH, Moon YW, Kim JG. Body composition is more closely related to the development of knee osteoarthritis in women than men: a cross-sectional study using the Fifth Korea National Health and Nutrition Examination Survey (KNHANES V-1, 2). Osteoarthritis Cartilage 2016; 24:605-11. [PMID: 26518994 DOI: 10.1016/j.joca.2015.10.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 10/05/2015] [Accepted: 10/21/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the association between knee osteoarthritis (OA) and body composition parameters, and to analyze the correlations of both obesity and lower extremity muscle mass with radiographic knee OA in relation to sex. METHODS This was a cross-sectional study using data on body composition parameters measured using dual energy X-ray absorptiometry in 4246 participants in the Fifth Korea National Health and Nutrition Examination Survey. The relationships between knee OA and body composition parameters were evaluated. The associations between knee OA and the four subgroups corresponding to obesity and muscle mass percentage in both lower extremities were analyzed separately for each sex. RESULTS The lower extremity muscle mass showed a decreasing trend, while fat parameters showed an increasing linear trend (P for trend <0.05) with increasing severity of knee OA in women. The odds ratio of each quarter percentile group (25 percentile) for fat parameters showed an increasing trend, while that of the lower extremity muscle mass showed a decreasing linear trend in relation to knee OA in women (P for trend < 0.05). In women, low percentage of lower extremity muscle mass was more associated with knee OA regardless of obesity (P < 0.05). However, there were no associations between all body composition parameters and knee OA in men. CONCLUSION In women, high fat mass and low lower extremity muscle mass were associated with presence and severity of knee OA. Lower extremity muscle mass was more closely correlated with knee OA than obesity in women.
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Affiliation(s)
- D H Suh
- Department of Orthopedic Surgery, Korea University College of Medicine, Ansan Hospital, Gyeounggi-do, South Korea
| | - K D Han
- Department of Medical Statistics, Catholic University College of Medicine, Seoul, South Korea
| | - J Y Hong
- Department of Orthopedic Surgery, Korea University College of Medicine, Ansan Hospital, Gyeounggi-do, South Korea
| | - J H Park
- Department of Orthopedic Surgery, Korea University College of Medicine, Ansan Hospital, Gyeounggi-do, South Korea
| | - J H Bae
- Department of Orthopedic Surgery, Korea University College of Medicine, Guro Hospital, Seoul, South Korea
| | - Y W Moon
- Department of Orthopedic Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea
| | - J G Kim
- Department of Orthopedic Surgery, Korea University College of Medicine, Ansan Hospital, Gyeounggi-do, South Korea.
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27
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Cheng J, Park SB, Kim SH, Yang SH, Suh JW, Lee CH, Kim JG. Suppressing activity of staurosporine from Streptomyces sp. MJM4426 against rice bacterial blight disease. J Appl Microbiol 2016; 120:975-85. [PMID: 26678243 DOI: 10.1111/jam.13034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 10/01/2015] [Accepted: 12/09/2015] [Indexed: 11/28/2022]
Abstract
AIM To identify the active compounds from the Streptomyces sp. MJM4426 that can protect rice from bacterial blight disease (BB), and to evaluate the potential of this Streptomyces strains and the compound for biocontrol of rice bacterial blight disease. METHODS AND RESULTS The ethyl acetate extract of Streptomyces sp. MJM4426 can significantly protect rice leaf explants from the infection of Xanthomonas oryzae pv. oryzaeKACC 10331 (Xoo), the pathogen which cause BB. To identify the active compounds, the ethyl acetate extract of Streptomyces sp. MJM4426 was fractionated through a Sephadex LH-20 column chromatography, and further purified by preparative HPLC guided by the inhibitory activity against BB in rice leaf explants. UPLC-Q-TOF/MS analysis showed the active compound displayed its m/z values at [M+H](+) 467·2086 and [M+FA-H](-) 511·1963, and the molecular formula was estimated as C28 H26 N4 O3 which is identical to commercial standard staurosporine. In this study, the isolated staurosporine dramatically suppressed bacterial blight in rice leaf explants with the lowest concentration at 12·5 μmol l(-1) , however, it exhibited low inhibitory activity against Xoo with the MIC value at 256 μg ml(-1) . In addition, greenhouse study showed both crude extract and purified staurosporine can suppress the bacterial blight at the concentration of 5000 and 200 μg ml(-1) respectively. CONCLUSION Streptomyces sp. MJM4426 can protect rice leaf explants from the infection of Xoo by producing staurosporine, but not by direct inhibitory activity against Xoo. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first report that staurosporine can protect rice leaf against bacterial blight disease and showed the potential of Streptomyces sp. MJM4426 as an alternative to chemical bactericide for bacterial blight disease in rice.
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Affiliation(s)
- J Cheng
- Division of Bioscience and Bioinformatics, College of Natural Science, Myongji University, Yongin, Gyeonggi-Do, Korea.,Center for Neutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi-Do, Korea
| | - S B Park
- Genomics Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju, Jeollabuk-Do, Korea.,Department of Bioscience and Biotechnology, Konkuk University, Seoul, Korea
| | - S H Kim
- Genomics Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju, Jeollabuk-Do, Korea
| | - S H Yang
- Center for Neutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi-Do, Korea.,Interdisciplinary Program of Biomodulation, Myongji University, Yongin, Gyeonggi-Do, Korea
| | - J-W Suh
- Division of Bioscience and Bioinformatics, College of Natural Science, Myongji University, Yongin, Gyeonggi-Do, Korea.,Center for Neutraceutical and Pharmaceutical Materials, Myongji University, Yongin, Gyeonggi-Do, Korea
| | - C H Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Korea
| | - J G Kim
- Genomics Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju, Jeollabuk-Do, Korea
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Choi JY, Jung AH, Jung SH, Hahn HJ, Kim JG, Shin WG. INT-012 An analysis on safety profile of biologic agents in paediatric patients with juvenile rheumatoid arthritis. Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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29
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Kye BH, Lee YS, Cho HM, Kim JG, Oh ST, Lee IK, Kang WK, Ahn CH, Lee SC, Park JK, Kim HJ. Comparison of Long-Term Outcomes Between Emergency Surgery and Bridge to Surgery for Malignant Obstruction in Right-Sided Colon Cancer: A Multicenter Retrospective Study. Ann Surg Oncol 2016; 23:1867-74. [PMID: 26812909 DOI: 10.1245/s10434-015-5053-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Malignant obstruction in right-sided colon (MORC) has traditionally been treated by emergency resection with primary anastomosis. The aim of this study was to evaluate short-term postoperative and long-term oncologic outcomes according to the surgical approach adopted for MORC. METHODS A total of 1785 patients who underwent curative surgery for stage II or III colon cancer in seven hospitals were reviewed retrospectively. Seventy-four of 1785 patients had MORC. We compared the postoperative outcome and long-term oncologic outcome between the emergency surgery (ES) group (49 patients) and the bridge to surgery (BS) group (25 patients) for 74 patients with MORC. RESULTS There were no differences in the length of the distal and proximal resection margin (p = 0.820 and p = 0.620) or the number of metastatic lymph nodes (p = 0.221). There were no differences in flatus passage (p = 0.242), start of diet (p = 0.336), hospital stay (p = 0.444), or postoperative morbidity (p = 0.762). The 5-year overall survival rates were 73.2 % in the ES group and 90.7 % in the BS group (p = 0.172). Moreover, the 5-year disease-free survival rates were 71.9 % in the ES group and 76.2 % in the BS group (p = 0.929). CONCLUSIONS On the basis of the above results, the postoperative course of the ES group was similar to that of the BS group. In addition, the long-term oncologic outcome of the BS group was similar or slightly better than that of the ES group. BS after colonic stent may be an alternative option for MORC.
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Affiliation(s)
- Bong-Hyeon Kye
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, South Korea
| | - Yoon Suk Lee
- Department of Surgery, Inchon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Inchon, South Korea
| | - Hyeon-Min Cho
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, South Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Seong-Taek Oh
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - In Kyu Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Won Kyung Kang
- Department of Surgery, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Chang-Hyeok Ahn
- Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, South Korea
| | - Sang Chul Lee
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, South Korea
| | - Jong-Kyung Park
- Department of Surgery, Saint Paul's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hyung-Jin Kim
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, South Korea.
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30
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Hwang IR, Choi YK, Lee WK, Kim JG, Lee IK, Kim SW, Park KG. Association between prolonged breastfeeding and bone mineral density and osteoporosis in postmenopausal women: KNHANES 2010-2011. Osteoporos Int 2016; 27:257-65. [PMID: 26373982 DOI: 10.1007/s00198-015-3292-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 08/12/2015] [Indexed: 11/28/2022]
Abstract
UNLABELLED This study showed that a negative correlation between duration of breastfeeding and bone mineral density (BMD) in the lumbar spine and prolonged breastfeeding is an independent risk for osteoporosis in postmenopausal women. The present study suggests that postmenopausal women with a history of prolonged breastfeeding require more careful screening for osteoporosis. INTRODUCTION Several studies suggest that breastfeeding and childbirth lead to maternal calcium loss and a decline in BMD. While the association between breastfeeding and BMD immediately after weaning is well-established, the effects of breastfeeding on postmenopausal women have been controversial. The aim of this study was to examine the effects of breastfeeding on bone mineral density (BMD) and the prevalence of osteoporosis in postmenopausal women. METHODS The present study was a cross-sectional survey based on the Korea National Health and Nutrition Examination Survey (KNHANES) 2010 and 2011 data. The association between breastfeeding and BMD and osteoporosis was examined in 1222 postmenopausal women. RESULTS The duration of breastfeeding and BMD in the lumbar spine showed a negative correlation. The association between duration of breastfeeding and BMD remained significant after adjustment for reproductive factors and other confounding factors (P = 0.008). However, the number of deliveries and age at the time of delivery did not correlate with BMD at any site after adjustment. Moreover, the prevalence of osteoporosis in postmenopausal women with a history of prolonged breastfeeding was significantly higher than that in women with a short history of breastfeeding (≥37 months, OR = 3.292; 95 % CI 1.485-7.299). The prevalence of lumbar spine fracture showed a significant increasing trend with the increase in the duration of breastfeeding. CONCLUSION Prolonged breastfeeding was significantly associated with low BMD in the lumbar spine and higher prevalence of osteoporosis. However, the number of deliveries or age at the time of childbirth did not influence BMD.
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Affiliation(s)
- I R Hwang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - Y K Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - W K Lee
- Department of Preventive Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - J G Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - I K Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea
| | - S W Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea.
| | - K G Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, South Korea.
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Kang BW, Seo AN, Yoon S, Bae HI, Jeon SW, Kwon OK, Chung HY, Yu W, Kang H, Kim JG. Prognostic value of tumor-infiltrating lymphocytes in Epstein-Barr virus-associated gastric cancer. Ann Oncol 2015; 27:494-501. [PMID: 26673353 DOI: 10.1093/annonc/mdv610] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 12/09/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND This study explored the prognostic impact of tumor-infiltrating lymphocytes (TILs) and investigated whether three histologic subtypes (lymphoepithelioma-like carcinoma, carcinoma with Crohn's disease-like lymphoid reaction, and conventional-type adenocarcinoma) could stratify a prognostic subset for patients with Epstein-Barr virus (EBV)-associated gastric cancer (EBVaGC). MATERIALS AND METHODS After reviewing 1318 consecutive cases of surgically resected or endoscopic submucosal dissected gastric cancers, 120 patients were identified as EBV-positive using EBV-encoded RNA in situ hybridization. The evaluation of the percentage of intratumoral (iTu-) and stromal (str-) TILs was carried out, and the cases were also subclassified into three histologic subtypes as noted above. RESULTS Among the 120 patients, 73 patients (60.8%) and 60 patients (50.0%) were determined as str-TIL-positive and iTu-TIL-positive, respectively. In a univariate analysis, str-TIL-positivity was significantly associated with longer recurrence-free survival (RFS; P = 0.002) and disease-free survival (DFS; P = 0.008), yet not overall survival (OS; P = 0.145). While iTu-TIL-positivity has a tendency of favorable outcome indicator for DFS and OS, but statistically significant differences were not shown, respectively (RFS, P = 0.058; DFS, P = 0.151; OS, P = 0.191). In a multivariate analysis using a Cox proportional hazard model adjusted for age, pTNM stage, lymphatic invasion, perineural invasion, and venous invasion; histologic subtype, WHO classification, and str-TIL-positivity were independently or tentatively associated with favorable RFS (hazard ratio [HR] = 12.193, 95% confidence interval [95% CI] 1.039-143.055, P = 0.047) or DFS (HR = 4.836, 95% CI 0.917-25.525, P = 0.063). CONCLUSION The histologic subclassification and TILs can be used to predict RFS and DFS for patients with EBVaGC.
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Affiliation(s)
- B W Kang
- Department of Oncology/Hematology, Kyungpook National University Medical Center, Kyungpook National University School of Medicine, Cancer Research Institute, Kyungpook National University
| | - A N Seo
- Departments of Pathology, Kyungpook National University Hospital, Kyungpook National University School of Medicine
| | - S Yoon
- Department of Oncology/Hematology, Kyungpook National University Medical Center, Kyungpook National University School of Medicine, Cancer Research Institute, Kyungpook National University
| | - H I Bae
- Departments of Pathology, Kyungpook National University Hospital, Kyungpook National University School of Medicine
| | - S W Jeon
- Gastroenterology, Kyungpook National University Hospital, Kyungpook National University School of Medicine
| | - O K Kwon
- Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine
| | - H Y Chung
- Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine
| | - W Yu
- Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine
| | - H Kang
- College of Pharmacy, Institute of Microorganisms and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, South Korea
| | - J G Kim
- Department of Oncology/Hematology, Kyungpook National University Medical Center, Kyungpook National University School of Medicine, Cancer Research Institute, Kyungpook National University
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Choi MH, Oh SN, Rha SE, Choi JI, Lee SH, Jang HS, Kim JG, Grimm R, Son Y. Diffusion-weighted imaging: Apparent diffusion coefficient histogram analysis for detecting pathologic complete response to chemoradiotherapy in locally advanced rectal cancer. J Magn Reson Imaging 2015; 44:212-20. [PMID: 26666560 DOI: 10.1002/jmri.25117] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 11/25/2015] [Indexed: 12/18/2022] Open
Abstract
PURPOSE To investigate the usefulness of apparent diffusion coefficient (ADC) values derived from histogram analysis of the whole rectal cancer as a quantitative parameter to evaluate pathologic complete response (pCR) on preoperative magnetic resonance imaging (MRI). MATERIALS AND METHODS We enrolled a total of 86 consecutive patients who had undergone surgery for rectal cancer after neoadjuvant chemoradiotherapy (CRT) at our institution between July 2012 and November 2014. Two radiologists who were blinded to the final pathological results reviewed post-CRT MRI to evaluate tumor stage. Quantitative image analysis was performed using T2 -weighted and diffusion-weighted images independently by two radiologists using dedicated software that performed histogram analysis to assess the distribution of ADC in the whole tumor. RESULTS After surgery, 16 patients were confirmed to have achieved pCR (18.6%). All parameters from pre- and post-CRT ADC histogram showed good or excellent agreement between two readers. The minimum, 10th, 25th, 50th, and 75th percentile and mean ADC from post-CRT ADC histogram were significantly higher in the pCR group than in the non-pCR group for both readers. The 25th percentile value from ADC histogram in post-CRT MRI had the best diagnostic performance for detecting pCR, with an area under the receiver operating characteristic curve of 0.796. CONCLUSION Low percentile values derived from the ADC histogram analysis of rectal cancer on MRI after CRT showed a significant difference between pCR and non-pCR groups, demonstrating the utility of the ADC value as a quantitative and objective marker to evaluate complete pathologic response to preoperative CRT in rectal cancer. J. Magn. Reson. Imaging 2016;44:212-220.
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Affiliation(s)
- Moon Hyung Choi
- Department of Radiology, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Republic of Korea
| | - Soon Nam Oh
- Department of Radiology, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Republic of Korea
| | - Sung Eun Rha
- Department of Radiology, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Republic of Korea
| | - Joon-Il Choi
- Department of Radiology, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Republic of Korea
| | - Sung Hak Lee
- Department of Hospital Pathology, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Republic of Korea
| | - Hong Seok Jang
- Department of Radiation Oncology, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Republic of Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Republic of Korea
| | | | - Yohan Son
- Siemens Healthcare, Seoul, Republic of Korea
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Abstract
OBJECTIVE In this study, we aimed to explore the association between polymorphisms in the period (PER) gene and bone response to hormone therapy (HT) in postmenopausal Korean women. METHODS The PER1 c.2284C > G, c.2247C > T, PER2 c.3731G > A, PER3 c.2592G > A, c.3083T > C polymorphisms, and PER3 54bp variable number of tandem repeats (VNTR) were analyzed in 509 postmenopausal Korean women who received HT. Bone mineral density (BMD) at the lumbar spine and femoral neck before and after 1 year of HT and serum levels of osteoprotegerin (OPG), soluble receptor activator of the nuclear factor-κB ligand (sRANKL) and bone turnover markers were measured after 6 months of HT. RESULTS The PER1 c.2884 C > G polymorphism and PER3 54bp VNTR were associated with annual percent changes in BMD of the femoral neck after 1 year of HT (p < 0.05). Changes in BMD at the femoral neck in the non-CC genotype of the PER1 c.2884C > G polymorphism and in the 4-repeat homozygote of PER3 54bp VNTR were significantly lower than those in CC genotype and non-4-repeat homozygote, respectively. The PER1 c.2884C > G polymorphism was associated with the non-response (>3% BMD loss/year after HT) of HT. The non-CC genotype of the PER1 c.2884C > G polymorphism showed a 1.92-times higher risk of non-response at the lumbar spine and/or femoral neck (p = 0.01) compared with the CC genotype. No significant changes in bone markers after 6 months of HT were noted according to the PER1 c.2884C > G polymorphism. CONCLUSIONS The PER1 c.2884C > G polymorphism may be associated with risk of non-response to HT in postmenopausal Korean women.
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Affiliation(s)
- J Kim
- a Department of Obstetrics and Gynecology, Cha Gangnam Hospital , Cha University , Seoul , Korea
| | - H Kim
- b Department of Obstetrics and Gynecology , Seoul National University College of Medicine , Korea ;,c Biomedical Research Institute , Seoul National University Hospital , Seoul , Korea
| | - S-Y Ku
- b Department of Obstetrics and Gynecology , Seoul National University College of Medicine , Korea ;,c Biomedical Research Institute , Seoul National University Hospital , Seoul , Korea
| | - C S Suh
- b Department of Obstetrics and Gynecology , Seoul National University College of Medicine , Korea ;,c Biomedical Research Institute , Seoul National University Hospital , Seoul , Korea
| | - J H Kim
- d Department of Anesthesiology and Pain Medicine, School of Medicine , Ewha Womans University , Seoul , Korea
| | - J G Kim
- b Department of Obstetrics and Gynecology , Seoul National University College of Medicine , Korea ;,d Department of Anesthesiology and Pain Medicine, School of Medicine , Ewha Womans University , Seoul , Korea
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Kim MK, Won DY, Lee JK, Kang WK, Kye BH, Cho HM, Kim HJ, Kim JG. Laparoscopic Surgery for Transverse Colon Cancer: Short- and Long-Term Outcomes in Comparison with Conventional Open Surgery. J Laparoendosc Adv Surg Tech A 2015; 25:982-9. [PMID: 26583447 DOI: 10.1089/lap.2015.0122] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Published studies on laparoscopic surgery for transverse colon cancer are scarce. More studies are necessary to evaluate the feasibility, safety, and long-term oncologic outcomes of laparoscopic surgery for transverse colon cancer. SUBJECTS AND METHODS From April 1996 to December 2010, 102 consecutive patients with stage II or III disease who had undergone curative resection for transverse colon cancer were enrolled. Seventy-nine patients underwent laparoscopy-assisted colectomy (LAC), whereas 23 patients underwent conventional open colectomy (OC). Short- and long-term outcomes of the two groups were compared. RESULTS The OC group had a larger tumor size (7.6 ± 3.4 cm versus 5.2 ± 2.3 cm, P = .004) and more retrieved lymph nodes (26.4 ± 11.6 versus 17.5 ± 9.4, P = .002), without differences in resection margins. In the LAC group, return to diet was faster (4.5 ± 1.2 days versus 5.4 ± 1.8 days, P = .013), and postoperative hospital stay was shorter (12.1 ± 4.2 days versus 15.9 ± 4.8 days, P = .000). There were no differences in occurrence of intra- or postoperative complications. There were no statistically significant differences in overall survival rate (OS) or disease-free survival rate (DFS) between the two groups (5-year OS, 90.4% versus 90.5%, P = .670; 5-year DFS, 84.2% versus 90.7%, P = .463). CONCLUSIONS Laparoscopic surgery for transverse colon cancer has better short-term outcomes compared with open surgery, with acceptable long-term outcomes. As in colorectal cancer of other sites, laparoscopic surgery can be a feasible alternative to conventional surgery for transverse colon cancer.
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Affiliation(s)
- Min Ki Kim
- 1 Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Dae-Youn Won
- 1 Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Jin-Kwon Lee
- 1 Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Won-Kyung Kang
- 1 Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
| | - Bong-Hyeon Kye
- 2 Department of Surgery, College of Medicine, St. Vincent Hospital, The Catholic University of Korea , Suwon, Korea
| | - Hyeon-Min Cho
- 2 Department of Surgery, College of Medicine, St. Vincent Hospital, The Catholic University of Korea , Suwon, Korea
| | - Hyung-Jin Kim
- 2 Department of Surgery, College of Medicine, St. Vincent Hospital, The Catholic University of Korea , Suwon, Korea
| | - Jun-Gi Kim
- 1 Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea , Seoul, Korea
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Kang HJ, Kye B, Kim HJ, Lee YS, Kim JG, Oh ST, Kang WK, Lee IK, Ahn CH, Park JK. Emergency vs bridge surgery for obstructive right sided colon cancer: multicenter retrospective study. J Am Coll Surg 2015. [DOI: 10.1016/j.jamcollsurg.2015.08.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kye BH, Kim HJ, Kim G, Kim JG, Cho HM. Multimodal Assessments Are Needed for Restaging after Neoadjunvant Chemoradiation Therapy in Rectal Cancer Patients. Cancer Res Treat 2015; 48:561-6. [PMID: 26323642 PMCID: PMC4843748 DOI: 10.4143/crt.2015.114] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Accepted: 07/07/2015] [Indexed: 02/06/2023] Open
Abstract
PURPOSE Restaging after neoadjuvant treatment is done for planning the surgical approach and, increasingly, to determine whether additional therapy or resection can be avoided for selected patients. MATERIALS AND METHODS Local restaging after neoadjuvant chemoradiation therapy (nCRT) was performed in 270 patients with locally advanced (cT3or4 or N+) rectal cancer. Abdomen and pelvic computed tomography (APCT) was used in all 270 patients, transrectal ultrasound (TRUS) in 121 patients, and rectal magnetic resonance imaging (MRI) in 65 patients. Findings according to imaging modalities were correlated with pathologic stage using Cohen's kappa (κ) to test agreement and intra-class correlation coefficient α to test reliability. RESULTS Accuracy for prediction of ypT stage according to three imaging modalities was 45.2% (κ=0.136, α=0.380) in APCT, 49.2% (κ=0.259, α=0.514) in rectal MRI, and 57.9% (κ=0.266, α=0.520) in TRUS. Accuracy for prediction of ypN stage was 66.0% (κ=0.274, α=0.441) in APCT, 71.8% (κ=0.401, α=0.549) in rectal MRI, and 66.1% (κ=0.147, α=0.272) in TRUS. Of 270 patients, 37 (13.7%) were diagnosed as pathologic complete responder after nCRT. Rectal MRI for restaging did not predict complete response. On the other hand, TRUS did predict three complete responders (κ=0.238, α=0.401). CONCLUSION APCT, rectal MRI, and TRUS are unreliable in restaging rectal cancer after nCRT. We think that multimodal assessment with rectal MRI and TRUS may be the best option for local restaging of locally advanced rectal cancer after nCRT.
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Affiliation(s)
- Bong-Hyeon Kye
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Hyung-Jin Kim
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Gun Kim
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyeon-Min Cho
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
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Kim MK, Won DY, Lee JK, Kang WK, Kim JG, Oh ST. Comparative study between transanal tube and loop ileostomy in low anterior resection for mid rectal cancer: a retrospective single center trial. Ann Surg Treat Res 2015; 88:260-8. [PMID: 25960989 PMCID: PMC4422879 DOI: 10.4174/astr.2015.88.5.260] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 11/03/2014] [Accepted: 11/26/2014] [Indexed: 02/08/2023] Open
Abstract
Purpose To investigate the efficacy and safety of the transanal tube (TAT) in preventing anastomotic leak (AL) in rectal cancer surgery. Methods Clinical data of the patients who underwent curative surgery for mid rectal cancer from February 2010 to February 2014 were reviewed retrospectively. Rectal cancers arising 5 to 10 cm above the anal verge were selected. Patients were divided into the ileostomy, TAT, or no-protection groups. Postoperative complications including AL and postoperative course were compared. Results We included 137 patients: 67, 35, and 35 patients were included in the ileostomy, TAT, and no-protection groups, respectively. Operation time was longer in the ileostomy group (P = 0.029), and more estimated blood loss was observed (P = 0.018). AL occurred in 5 patients (7.5%) in the ileostomy group, 1 patients (2.9%) in the TAT group, and 6 patients (17.1%) in the no-protection group (P = 0.125). Patients in the ileostomy group resumed diet more than 1 day earlier than those in the other groups (P = 0.000). Patients in the no-protection group had about 1 or 2 days longer postoperative hospital stay (P = 0.048). The ileostomy group showed higher late complication rates than the other groups as complications associated with the stoma itself or repair operation developed (P = 0.019). Conclusion For mid rectal cancer surgery, the TAT supports anastomotic site protection and diverts ileostomy-related complications. Further large scale randomized controlled studies are needed to gain more evidence and expand the range of TAT usage.
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Affiliation(s)
- Min-Ki Kim
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Dae-Youn Won
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Jin-Kwon Lee
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Won-Kyung Kang
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Seong Taek Oh
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Korea
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Kwon TS, Choi SB, Lee YS, Kim JG, Oh ST, Lee IK. Novel Methods of Lymph Node Evaluation for Predicting the Prognosis of Colorectal Cancer Patients with Inadequate Lymph Node Harvest. Cancer Res Treat 2015; 48:216-24. [PMID: 25943323 PMCID: PMC4720064 DOI: 10.4143/crt.2014.312] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 03/07/2015] [Indexed: 12/17/2022] Open
Abstract
Purpose Lymph node metastasis is an important factor for predicting the prognosis of colorectal cancer patients. However, approximately 60% of patients do not receive adequate lymph node evaluation (less than 12 lymph nodes). In this study, we identified a more effective tool for predicting the prognosis of patients who received inadequate lymph node evaluation. Materials and Methods The number of metastatic lymph nodes, total number of lymph nodes examined, number of negative metastatic lymph nodes (NL), lymph node ratio (LR), and the number of apical lymph nodes (APL) were examined, and the prognostic impact of these parameters was examined in patients with colorectal cancer who underwent surgery from January 2004 to December 2011. In total, 806 people were analyzed retrospectively. Results In comparison of different lymph node analysis methods for rectal cancer patients who did not receive adequate lymph node dissection, the LR showed a significant difference in overall survival (OS) and the APL predicted a significant difference in disease-free survival (DFS). In the case of colon cancer patients who did not receive adequate lymph node dissection, LR predicted a significant difference in DFS and OS, and the APL predicted a significant difference in DFS. Conclusion If patients did not receive adequate lymph node evaluation, the LR and NL were useful parameters to complement N stage for predicting OS in colon cancer, whereas LR was complementary for rectal cancer. The APL could be used for prediction of DFS in all patients.
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Affiliation(s)
- Taek Soo Kwon
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Bong Choi
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoon Suk Lee
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jun-Gi Kim
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seong Taek Oh
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - In Kyu Lee
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kye BH, Kim HJ, Cho HM, Kim JG, Kim SH, Shim BY. Reduced luminal circumference of tumors plays a key role in anorectal function during the early period after neoadjuvant chemoradiation therapy in rectal cancer patients. Int J Colorectal Dis 2015; 30:465-74. [PMID: 25712808 DOI: 10.1007/s00384-015-2155-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/02/2015] [Indexed: 02/04/2023]
Abstract
PURPOSE The deterioration of anorectal function after neoadjuvant chemoradiation therapy (nCRT) combined with surgery for rectal cancer has not been well defined. The aim of this study was to evaluate the relationship between the tumor response to nCRT and changes in anorectal function during a short-term period after nCRT. METHODS We analyzed 100 consecutive patients with available preoperative anorectal manometry data, both before and after nCRT, from 2010 to 2013. RESULTS Comparing the manometric data before and after nCRT, the values reflecting rectal sensory function after nCRT was significantly lower than those before nCRT. However, in patients who experienced changed tumor morphology and a reduction in luminal circumferential ratio (LCIR) of tumor after nCRT, the values reflecting rectal sensory function were significantly less decreased after nCRT. On multivariate analysis, the reduction of LCIR after nCRT was a very important factor preventing the impairment of anorectal function during the short-term period in terms of the first rectal sensory threshold (RST) (P = 0.002), the RST of "desire to defecate" (P = 0.006), and rectal compliance (P = 0.003). Additionally, in linear regression analysis, the RST for the desire to defecate was positively affected by tumor morphology (P = 0.015) and the reduced LCIR (P = 0.025), and rectal compliance was positively affected by the reduced LCIR (P = 0.001). CONCLUSION The nCRT impaired significantly rectal sensory function during the short-term period after nCRT and before a radical operation. However, this reduced LCIR of tumors after nCRT may prevent or minimize impediments to anorectal function during the short-term period after nCRT.
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Affiliation(s)
- Bong-Hyeon Kye
- Department of Surgery, St. Vincent Hospital, The Catholic University of Korea, 93-6, Ji-dong, Paldal-gu, Suwon-si, Gyeonggi-do, 442-723, Korea
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Chung JH, Kim SC, Kim JG. Polyethylene Glycol (PEG-3350, Colyte) Poisoning due to Intra-Peritoneal Leakage in an Elderly Patient. Korean J Crit Care Med 2015. [DOI: 10.4266/kjccm.2015.30.1.56] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Choi GJ, Kang H, Baek CW, Jung YH, Woo YC, Kim SH, Kim JG. Comparison of streamlined liner of the pharynx airway (SLIPA ™) and laryngeal mask airway: a systematic review and meta-analysis. Anaesthesia 2015; 70:613-22. [PMID: 25693455 DOI: 10.1111/anae.13035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2015] [Indexed: 11/29/2022]
Abstract
We performed a systematic review to compare the efficacy and safety of the streamlined liner of the pharynx airway and laryngeal mask airway used in adults during general anaesthesia. We included 14 studies with studies with 1273 patients in total. There was no evidence of a difference between the two devices in insertion success rate on the first attempt (13 studies, 1143 patients), insertion time (seven studies, 576 patients), ease of insertion (five studies, 466 patients), oropharyngeal leak pressure (eight studies, 771 patients) and the quality of the fibreoptic view of the larynx through the device (three studies, 281 patients). The relative risk (95% CI) of bloodstaining of the device (nine studies, 859 patients) was 2.09 (1.46-3.00) for the streamlined liner of the pharynx airway compared with the laryngeal mask airway. Other adverse events were comparable. Subgroup analysis suggested that the insertion by novice users might be faster and more successful with the streamlined liner of the pharynx airway than the laryngeal mask airway; however, this was from only two studies and 186 patients. The method of size selection of the streamlined liner of the pharynx airway device might also affect the speed of insertion: choosing according to the width of the patient's thyroid cartilage, rather than height, may produce better results.
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Affiliation(s)
- G J Choi
- Department of Anaesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Korea
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Park SM, Kwon TS, Kim DJ, Lee YS, Cheung DY, Oh ST, Kim JG, Lee IK. Prediction and management of recurrent right colon diverticulitis. Int J Colorectal Dis 2014; 29:1355-60. [PMID: 24997717 DOI: 10.1007/s00384-014-1938-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/12/2014] [Indexed: 02/04/2023]
Abstract
PURPOSE While the incidence of right colonic diverticulitis (RCD) is rare in Western countries, the right colon is the most common site of diverticulitis in Asian countries. However, its recurrent pattern and management were rarely studied. This study was designed to elucidate the pattern of recurrence in RCD. METHODS Of the 154 patients admitted as right colonic diverticulitis between February 2004 and March 2012, 104 patients were enrolled, prospectively. The recurrence rate, size, multiplicity, location, diagnostic criteria score, and predisposing factors were evaluated based on Hinchey's classification of diverticulitis. RESULTS There were 104 patients with right colonic diverticulitis in this study, and 20 patients (19.2 %) recurred after medical treatment. When the diverticula were not located in the right colon, the recurrence rate was significantly higher than the diverticula located only in the right colon (p = 0.004). The recurrence rate of diverticulitis for a single diverticulum was significantly lower than that for multiple diverticula (p = 0.02). Of the 20 patients with recurrence, 1 (5 %) patient underwent laparoscopic diverticulectomy due to a misdiagnosis of diverticulitis as appendicitis. The remaining 19 patients (95 %) received nonoperative management and recovered without any sequelae. CONCLUSIONS The recurrence rate was 19.2 %, and the predisposing factors were the location of diverticula and the multiplicity of primary diverticula. The re-recurrence rate of recurred patients was 26.3 %. The recurred lesions were controlled simply by nonoperative management. Elective surgery was also a treatment option.
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Affiliation(s)
- Sun Min Park
- Department of Surgery, Yeouido St. Mary's Hospital, The Catholic University of Korea College of Medicine, #62 Yeouido-dong, Yeongdeungpo-gu, Seoul, 150-713, Korea
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Kye BH, Kim HJ, Kim JG, Cho HM. Is it safe the reversal of a diverting stoma during adjuvant chemotherapy in elderly rectal cancer patients? Int J Surg 2014; 12:1337-41. [PMID: 25448655 DOI: 10.1016/j.ijsu.2014.10.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/07/2014] [Accepted: 10/20/2014] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The aim of this study was to investigate the clinical outcomes between 2 groups of elderly rectal cancer patients according to the time duration after which their diverting stoma can be reversed. METHODS We recruited 124 patients who were ≥65 years old and had undergone diverting stoma after rectal cancer surgery. In Group 1, the reversal of the stoma was predominantly performed after the sixth adjuvant chemotherapy. In Group 2, the reversal was predominantly performed after the third adjuvant chemotherapy. RESULTS The mean duration for which patients had a stoma was 28.6 ± 9.9 weeks in Group 1 and 17.1 ± 7.4 weeks in Group 2. The interval between stoma formation and stoma formation-related complications was slightly longer in Group 1 than in Group 2 (13.5 ± 9.7 vs. 8.0 ± 4.9 weeks, p = 0.075). There were 16 stoma-related complications in Group 1 (23.2%) and 10 in Group 2 (18.2%) (p = 0.516). There were 6 stoma closure-related complications in Group 1 (8.8%) and 6 in Group 2 (10.9%) (p = 0.766). DISCUSSION This study shows that stoma closure during adjuvant chemotherapy is no more harmful than stoma closure after termination of adjuvant chemotherapy. CONCLUSION It may be possible to limit the duration of diverting stoma following rectal cancer surgery, even if patients are elderly and undergoing adjuvant chemotherapy.
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Affiliation(s)
- Bong-Hyeon Kye
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, 93-6, Ji-dong, Paldal-gu, Suwon-si, Gyeonggi-do 442-723, Republic of Korea
| | - Hyung-Jin Kim
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, 93-6, Ji-dong, Paldal-gu, Suwon-si, Gyeonggi-do 442-723, Republic of Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul 137-701, Republic of Korea
| | - Hyeon-Min Cho
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, 93-6, Ji-dong, Paldal-gu, Suwon-si, Gyeonggi-do 442-723, Republic of Korea.
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Lee SY, Bae JH, Kim JG, Jang KM, Shon WY, Kim KW, Lim HC. The influence of surgical factors on dislocation of the meniscal bearing after Oxford medial unicompartmental knee replacement: a case-control study. Bone Joint J 2014; 96-B:914-22. [PMID: 24986945 DOI: 10.1302/0301-620x.96b7.33352] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The aim of this study was to evaluate the risk factors for dislocation of the bearing after a mobile-bearing Oxford medial unicompartmental knee replacement (UKR) and to test the hypothesis that surgical factors, as measured from post-operative radiographs, are associated with its dislocation From a total of 480 UKRs performed between 2001 and 2012, in 391 patients with a mean age of 66.5 years (45 to 82) (316 female, 75 male), we identified 17 UKRs where bearing dislocation occurred. The post-operative radiological measurements of the 17 UKRs and 51 matched controls were analysed using conditional logistic regression analysis. The post-operative radiological measurements included post-operative change in limb alignment, the position of the femoral and tibial components, the resection depth of the proximal tibia, and the femoral component-posterior condyle classification. We concluded that a post-operative decrease in the posterior tibial slope relative to the pre-operative value was the only significant determinant of dislocation of the bearing after medial Oxford UKR (odds ratio 1.881; 95% confidence interval 1.272 to 2.779). A post-operative posterior tibial slope < 8.45° and a difference between the pre-operative and post-operative posterior tibial slope of > 2.19° may increase the risk of dislocation.
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Affiliation(s)
- S Y Lee
- Korea University College of Medicine, Department of Orthopaedic Surgery, 80, Guro-Dong, Guro-Gu, Seoul, 152-703, South Korea
| | - J H Bae
- Korea University College of Medicine, Department of Orthopaedic Surgery, 516, Gojan 1-Dong, Danwon-Gu, Ansan, 425-707, South Korea
| | - J G Kim
- Korea University College of Medicine, Department of Orthopaedic Surgery, 516, Gojan 1-Dong, Danwon-Gu, Ansan, 425-707, South Korea
| | - K M Jang
- Korea University College of Medicine, Department of Orthopaedic Surgery, 80, Guro-Dong, Guro-Gu, Seoul, 152-703, South Korea
| | - W Y Shon
- Korea University College of Medicine, Department of Orthopaedic Surgery, 80, Guro-Dong, Guro-Gu, Seoul, 152-703, South Korea
| | - K W Kim
- Korea University College of Medicine, Department of Orthopaedic Surgery, 516, Gojan 1-Dong, Danwon-Gu, Ansan, 425-707, South Korea
| | - H C Lim
- Korea University College of Medicine, Department of Orthopaedic Surgery, 80, Guro-Dong, Guro-Gu, Seoul, 152-703, South Korea
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Kim HJ, Kang BM, Lee SH, Lee SC, Lee KY, Park SJ, Lim SW, Kim JG. Single-Port Laparoscopic Colorectal Cancer Surgery in Korea: Retrospective Analysis of the Multicenter, Pooled Database. J Laparoendosc Adv Surg Tech A 2014; 24:462-5. [DOI: 10.1089/lap.2013.0503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Hyung Jin Kim
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Byung Mo Kang
- Department of Surgery, Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, Korea
| | - Suk-Hwan Lee
- Department of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sang Chul Lee
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Kil Yeon Lee
- Department of Surgery, Kyung Hee Medical Center, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sun Jin Park
- Department of Surgery, Kyung Hee Medical Center, Kyung Hee University School of Medicine, Seoul, Korea
| | - Sang Woo Lim
- Department of Surgery, Chonnam National University Hwasun Hospital, Chonnam National University School of Medicine, Hwasun, Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Abstract
OBJECTIVE In the present study, we aimed to investigate the association between genetic polymorphisms in period (PER) genes and bone mineral density (BMD) in postmenopausal Korean women. METHODS The PER1 c.2247C> T and c.2884C> G polymorphisms; the PER2 c.661G> A and c.3731G> A polymorphisms; the PER3 c.2592G> A, c.3029C> T, c.3035C> T, and c.3083T> C polymorphisms, and the 54 bp variable number tandem repeats polymorphism were analyzed in 551 postmenopausal Korean women. Serum leptin, soluble leptin receptor, osteoprotegerin, soluble receptor activator of the nuclear factor-κB ligand, and bone markers including bone alkaline phosphatase and carboxy-terminal telopeptide of type I collagen were measured, and the lumbar spine and femoral neck BMDs were also determined. RESULTS The PER2 c.661G> A, PER3 c.3029C> T and c.3035C> T polymorphisms were not observed. The PER2 and PER3 polymorphisms evaluated were not related to BMD, whereas associations of the c.2247C> T and c.2884C> G polymorphisms in PER1 with the lumbar spine BMD were observed both singly and in combination. The CC haplotype homozygotes showed significantly lower lumbar spine BMD than participants with other genotypes. Additionally, 2.01-fold higher odds for osteoporosis of the lumbar spine were found in the CC haplotype homozygotes compared to women not carrying the haplotype CC allele. No significant differences in bone markers were detected according to the PER1 haplotype genotype. CONCLUSIONS Our results suggest that both the PER1 c.2247C> T and c.2884C> G polymorphisms may be genetic factors affecting the lumbar spine BMD in postmenopausal Korean women.
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Affiliation(s)
- H Kim
- * Department of Obstetrics and Gynecology, Seoul National University College of Medicine , Seoul , Korea
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Affiliation(s)
- J G Kim
- Cardiovascular Center and Cardiology Division, Seoul St. Mary's Hospital, Seoul, Korea.
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Kwag SJ, Kim JG, Kang WK, Lee JK, Oh ST. Niti CAR 27 Versus a Conventional End-to-End Anastomosis Stapler in a Laparoscopic Anterior Resection for Sigmoid Colon Cancer. Ann Coloproctol 2014; 30:77-82. [PMID: 24851217 PMCID: PMC4022756 DOI: 10.3393/ac.2014.30.2.77] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 07/24/2013] [Indexed: 01/04/2023] Open
Abstract
PURPOSE The Niti CAR 27 (ColonRing) uses compression to create an anastomosis. This study aimed to investigate the safety and the effectiveness of the anastomosis created with the Niti CAR 27 in a laparoscopic anterior resection for sigmoid colon cancer. METHODS In a single-center study, 157 consecutive patients who received an operation between March 2010 and December 2011 were retrospectively assessed. The Niti CAR 27 (CAR group, 63 patients) colorectal anastomoses were compared with the conventional double-stapled (CDS group, 94 patients) colorectal anastomoses. Intraoperative, immediate postoperative and 6-month follow-up data were recorded. RESULTS There were no statistically significant differences between the two groups in terms of age, gender, tumor location and other clinical characteristics. One patient (1.6%) in the CAR group and 2 patients (2.1%) in the CDS group experienced complications of anastomotic leakage (P = 0.647). These three patients underwent a diverting loop ileostomy. There were 2 cases (2.1%) of bleeding at the anastomosis site in the CDS group. All patients underwent a follow-up colonoscopy (median, 6 months). One patient in the CAR group experienced anastomotic stricture (1.6% vs. 0%; P = 0.401). This complication was solved by using balloon dilatation. CONCLUSION Anastomosis using the Niti CAR 27 device in a laparoscopic anterior resection for sigmoid colon cancer is safe and feasible. Its use is equivalent to that of the conventional double-stapler.
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Affiliation(s)
- Seung-Jin Kwag
- Department of Surgery, Gyeongsang National University, Postgraduate School of Medicine, Jinju, Korea
| | - Jun-Gi Kim
- Department of Surgery, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Korea
| | - Won-Kyung Kang
- Department of Surgery, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Korea
| | - Jin-Kwon Lee
- Department of Surgery, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Korea
| | - Seong-Taek Oh
- Department of Surgery, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Korea
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Sung SJ, Yang JW, Lee PR, Kim JG, Ryu MT, Park HM, Lee G, Hwang CC, Kim KS, Kim JS, Chung JW. Spin-induced band modifications of graphene through intercalation of magnetic iron atoms. Nanoscale 2014; 6:3824-3829. [PMID: 24584481 DOI: 10.1039/c3nr04178f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Intercalation of magnetic iron atoms through graphene formed on the SiC(0001) surface is found to induce significant changes in the electronic properties of graphene due mainly to the Fe-induced asymmetries in charge as well as spin distribution. From our synchrotron-based photoelectron spectroscopy data together with ab initio calculations, we observe that the Fe-induced charge asymmetry results in the formation of a quasi-free-standing bilayer graphene while the spin asymmetry drives multiple spin-split bands. We find that Fe adatoms are best intercalated upon annealing at 600 °C, exhibiting split linear π-bands, characteristic of a bilayer graphene, but much diffused. Subsequent changes in the C 1s, Si 2p, and Fe 3p core levels are consistently described in terms of Fe-intercalation. Our calculations together with a spin-dependent tight binding model ascribe the diffuse nature of the π-bands to the multiple spin-split bands originated from the spin-injected carbon atoms residing only in the lower graphene layer.
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Affiliation(s)
- S J Sung
- Department of Physics, Pohang University of Science and Technology, Pohang, Korea.
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Kwag SJ, Kim JG, Kang WK, Lee JK, Oh ST. The nutritional risk is a independent factor for postoperative morbidity in surgery for colorectal cancer. Ann Surg Treat Res 2014; 86:206-11. [PMID: 24783180 PMCID: PMC3996723 DOI: 10.4174/astr.2014.86.4.206] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 11/18/2013] [Accepted: 11/20/2013] [Indexed: 01/10/2023] Open
Abstract
Purpose The authors evaluate the prevalence of malnutrition and its effect on the postoperative morbidity of patients after surgery for colorectal cancer. Methods Three hundred fifty-two patients were enrolled prospectively. Nutritional risk screening 2002 (NRS 2002) score was calculated through interview with patient on admission. Clinical characteristics, tumor status and surgical procedure were recorded. Results The prevalence of patients at nutritional risk was 28.1 per cent according to the NRS 2002. The rate of postoperative complication was 27%. There was a significant difference in postoperative complication rates between patients at nutritional risk and those not at risk (37.4% vs. 22.9%, P = 0.006). Nutritional risk was identified as an independent predictor of postoperative complications (odds ratio, 3.05; P = 0.045). Nutritional risk increased the rate of anastomotic leakage (P = 0.027) and wound infection (P = 0.01). Conclusion NRS may be a prognostic factor for postoperative complication after surgery for colorectal cancer. A large scaled prospective study is needed to confirm whether supplementing nutritional deficits reduces postoperative complication rates.
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Affiliation(s)
- Seung-Jin Kwag
- Department of Surgery, Gyeongsang National University, Postgraduate School of Medicine, Jinju, Korea
| | - Jun-Gi Kim
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Won-Kyung Kang
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jin-Kwon Lee
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Seong-Taek Oh
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
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