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Article: Real-world survival after colorectal surgery for malignancy in Korean patients with chronic kidney disease: an analysis of Korean healthcare big data, 2002-2019.

Song, Inho / Nam, Hyeryeong / Lee, Bora / Park, Byung Kwan / Kim, Jeong-Ki / Ryoo, Seung-Bum / Park, Kyu Joo / Han, Eon Chul

Annals of surgical treatment and research

2023 Volume 105, Issue 5, Page(s) 281–289

Abstract: Purpose: Globally, chronic kidney disease (CKD) is common and has been associated with an increased risk of colorectal cancer (CRC). There is a dearth of literature on the real-world morbidity and mortality associated with CKD comorbid with CRC. This ... ...

Abstract	Purpose: Globally, chronic kidney disease (CKD) is common and has been associated with an increased risk of colorectal cancer (CRC). There is a dearth of literature on the real-world morbidity and mortality associated with CKD comorbid with CRC. This study was performed to evaluate real-world survival outcomes of colorectal malignancy in Korean CKD patients. Methods: The National Health Insurance Service of Korea provided data on patients who underwent surgical resection among patients diagnosed with CRC from 2002 to 2019. Results: A total of 219,550 patients were included: 6,181 patients with underlying CKD and 213,369 patients without it. Each morbidity was significantly higher in the CKD-CRC group, and the postoperative mortality rates for the 30-day (3.11% Conclusion: Prevention of CKD-to-end-stage renal disease progression should be adopted as a strategy to increase postoperative survival, along with active surveillance and cancer treatment.
Language	English
Publishing date	2023-10-31
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	3012234-X
ISSN	2288-6796 ; 2288-6575
ISSN (online)	2288-6796
ISSN	2288-6575
DOI	10.4174/astr.2023.105.5.281
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Characterization of 3D Organotypic Culture of Mouse Adipose-Derived Stem Cells.

Son, Tae Gen / Seo, Yoojin / Kim, Won-Tae / Kim, Meesun / Choi, Seon Jeong / Choi, Si Ho / Sung, Byung-Jun / Min, Jae-Seok / Han, Eon Chul / Kim, Hyung-Sik

International journal of molecular sciences

2024 Volume 25, Issue 7

Abstract: Although stem cells are a promising avenue for harnessing the potential of adipose tissue, conventional two-dimensional (2D) culture methods have limitations. This study explored the use of three-dimensional (3D) cultures to preserve the regenerative ... ...

Abstract	Although stem cells are a promising avenue for harnessing the potential of adipose tissue, conventional two-dimensional (2D) culture methods have limitations. This study explored the use of three-dimensional (3D) cultures to preserve the regenerative potential of adipose-derived stem cells (ADSCs) and investigated their cellular properties. Flow cytometric analysis revealed significant variations in surface marker expressions between the two culture conditions. While 2D cultures showed robust surface marker expressions, 3D cultures exhibited reduced levels of CD44, CD90.2, and CD105. Adipogenic differentiation in 3D organotypic ADSCs faced challenges, with decreased organoid size and limited activation of adipogenesis-related genes. Key adipocyte markers, such as lipoprotein lipase (LPL) and adipoQ, were undetectable in 3D-cultured ADSCs, unlike positive controls in 2D-cultured mesenchymal stem cells (MSCs). Surprisingly, 3D-cultured ADSCs underwent mesenchymal-epithelial transition (MET), evidenced by increased E-cadherin and EpCAM expression and decreased mesenchymal markers. This study highlights successful ADSC organoid formation, notable MSC phenotype changes in 3D culture, adipogenic differentiation challenges, and a distinctive shift toward an epithelial-like state. These findings offer insights into the potential applications of 3D-cultured ADSCs in regenerative medicine, emphasizing the need for further exploration of underlying molecular mechanisms.
MeSH term(s)	Animals ; Mice ; Microphysiological Systems ; Adiposity ; Obesity ; Organoids ; Adipocytes
Language	English
Publishing date	2024-04-01
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2019364-6
ISSN	1422-0067 ; 1422-0067 ; 1661-6596
ISSN (online)	1422-0067
ISSN	1422-0067 ; 1661-6596
DOI	10.3390/ijms25073931
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Article: Coring-out fistulectomy for perianal cryptoglandular fistula: a retrospective cohort study on 20 years of experience at a single center.

Lee, Kil-Yong / Lee, Jumyung / Han, Eon Chul / Kwon, Yoon-Hye / Ryoo, Seung-Bum / Park, Kyu Joo

Annals of surgical treatment and research

2022 Volume 102, Issue 3, Page(s) 167–175

Abstract: Purpose: Cryptoglandular fistula is one of the common anal diseases requiring surgical treatment. Various surgical techniques have been introduced; however, there is no known standard technique. Coring-out fistulectomy is a surgical technique that ... ...

Abstract	Purpose: Cryptoglandular fistula is one of the common anal diseases requiring surgical treatment. Various surgical techniques have been introduced; however, there is no known standard technique. Coring-out fistulectomy is a surgical technique that accurately resects only the fistula tract. However, only a few cases of this procedure have been reported. We aimed to analyze the surgical outcomes of coring-out fistulectomy for cryptoglandular anal fistulas. Methods: We retrospectively reviewed the medical records of patients who underwent coring-out fistulectomy for a cryptoglandular fistula between 1999 and 2019. Primary outcomes were the treatment success rate (recurrence and healing rates) and incidence of fecal incontinence. Results: A total of 184 patients were included in our study. The average age of the patients was 44 years (range, 16-75 years), and 88.0% were male. Twenty-four (13.0%), 13 (7.1%), and 68 patients (37.0%) underwent operation for recurrent fistula, multiple tracts, and complex type fistula, respectively. The healing rate was 92.4%, and recurrence occurred in 15 of 170 healed patients (8.8%). Thus, the treatment success rate was 84.2%. There was no fecal incontinence except in 1 patient who had preoperative fecal incontinence because of cauda equine syndrome. In multivariable analysis of the factors affecting the treatment success rate, the complex fistula (odds ratio [OR], 14.2; 95% confidence interval [CI], 4.7-43.0; P < 0.001) and undetected internal opening during the operation (OR, 4.0; 95% CI, 1.4-11.6; P = 0.012) were significant factors. Conclusion: Coring-out fistulectomy is a simple and feasible technique for sphincter-preserving anal fistula surgery.
Language	English
Publishing date	2022-03-04
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	3012234-X
ISSN	2288-6796 ; 2288-6575
ISSN (online)	2288-6796
ISSN	2288-6575
DOI	10.4174/astr.2022.102.3.167
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Article: Public effect of the 2022 Colorectal Cancer Awareness Campaign delivered through a metaverse platform.

Lee, Tae-Gyun / Song, Gil-Hyeon / Ahn, Hong-Min / Oh, Heung-Kwon / Byun, Moonkyoung / Han, Eon Chul / Kim, Sohyun / Kim, Chang Woo / Kim, Hye Jin / Hong, Samin / Song, Kee-Ho / Kim, Chan Wook / Cho, Yong Beom

Annals of coloproctology

2023 Volume 40, Issue 2, Page(s) 145–153

Abstract: Purpose: The Korean Society of Coloproctology has been conducting Colorectal Cancer Awareness Campaign, also known as the Gold Ribbon Campaign, every September since 2007. The 2022 campaign was held through a metaverse platform targeting the younger age ...

Abstract	Purpose: The Korean Society of Coloproctology has been conducting Colorectal Cancer Awareness Campaign, also known as the Gold Ribbon Campaign, every September since 2007. The 2022 campaign was held through a metaverse platform targeting the younger age group under the slogan of raising awareness of early-onset colorectal cancer (CRC). This study aimed to analyze the impact of the 2022 campaign on a metaverse platform. Methods: Anonymized survey data were collected from participants in the metaverse campaign from September 1 to 15, 2022. The satisfaction score of the participants was evaluated by sex, age group, and previous campaign participation status. Results: During the campaign, 2,770 people visited the metaverse. Among them, 455 people participated in the survey (response rate, 16.4%). Approximately 95% of the participants reported being satisfied with the information provided by the campaign, understood the necessity of undergoing screening for and prevention of early-onset CRC, and were familiar with the structure of the metaverse. The satisfaction score for campaign information tended to decrease as the participants' age increased. When the participants' overall level of satisfaction with the metaverse platform was assessed, teenagers scored particularly lower than the other age groups. The satisfaction scores for CRC information provided in the metaverse, as well as the scores for recognizing the seriousness and necessity of screening for early-onset CRC, indicated a high positive tendency (P<0.001). Conclusion: Most of the 2022 Gold Ribbon Campaign participants were satisfied with the metaverse platform. Medical society should pay attention to increasing participation in and satisfaction with future public campaigns.
Language	English
Publishing date	2023-04-28
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	2711906-3
ISSN	2287-9722 ; 2287-9714
ISSN (online)	2287-9722
ISSN	2287-9714
DOI	10.3393/ac.2023.00122.0017
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Article: The prognoses and postoperative outcomes of patients with both colorectal cancer and liver cirrhosis based on a nationwide cohort in Korea.

Shin, Nari / Han, Eon Chul / Won, Sungho / Ryoo, Seung-Bum / Choe, Eun Kyung / Park, Byung Kwan / Park, Kyu Joo

Annals of surgical treatment and research

2020 Volume 99, Issue 2, Page(s) 82–89

Abstract: Purpose: The management of patients with colorectal cancer (CRC) who have liver cirrhosis (LC) requires a thorough understanding of both diseases; however, the prognoses and postoperative outcomes of such patients remain understudied. We investigated ... ...

Abstract	Purpose: The management of patients with colorectal cancer (CRC) who have liver cirrhosis (LC) requires a thorough understanding of both diseases; however, the prognoses and postoperative outcomes of such patients remain understudied. We investigated the effect of LC on surgical and oncologic outcomes in patients with CRC, and identified prognostic factors. Methods: We analyzed 453 patients with CRC and LC (CRC-LC group), 906 with CRC only (CRC group), 906 with LC only (LC group), and 1,812 healthy subjects using health insurance claim data (2008-2013). Results: The CRC-LC group had a higher frequency of intensive care unit admission than the CRC group; there were no differences between the 2 groups in terms of early and late postoperative small bowel obstruction and incisional hernia. However, the 30-day, 60-day, and 90-day mortality rates were all significantly higher in the CRC-LC group. The higher Charlson comorbidity index (hazard ratio [HR], 1.127) and the lower socioeconomic status (HR, 0.985) were significant worse predictors of 5-year survival. Patients with underlying LC had a significantly higher HR in both the advanced CRC (HR, 1.858) and nonadvanced CRC (HR, 1.799) subgroups. However, the nonadvanced CRC subgroup showed a lower HR than the LC group (HR, 0.730). Conclusion: Patients with CRC who had underlying LC had a lower survival rate than did those without LC, although the incidence rates of postoperative complications were not significantly different. The presence of LC was associated with a significantly lower survival rate regardless of CRC presence.
Language	English
Publishing date	2020-07-31
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	3012234-X
ISSN	2288-6796 ; 2288-6575
ISSN (online)	2288-6796
ISSN	2288-6575
DOI	10.4174/astr.2020.99.2.82
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Article ; Online: Refinement of recto-sigmoid colon vaginoplasty using a three-dimensional laparoscopic technique.

Kim, Jeong-Ki / Na, Woong / Cho, Jeong Hyun / Ahn, Eun Jung / Kim, Eunyoung / Song, In-Gyu / Han, Eon Chul / Lee, Dong Woon / Park, Byung Kwan / Park, Yong-Gum / Kim, Beom Gyu

Medicine

2021 Volume 100, Issue 35, Page(s) e27042

Abstract: Abstract: To investigate the feasibility, safety, and outcomes of three-dimensional (3D) laparoscopic vaginoplasty with a rectosigmoid colon flap for vaginal reconstruction.Following appropriate preoperative patient counseling, 17 consecutive patients ... ...

Abstract	Abstract: To investigate the feasibility, safety, and outcomes of three-dimensional (3D) laparoscopic vaginoplasty with a rectosigmoid colon flap for vaginal reconstruction.Following appropriate preoperative patient counseling, 17 consecutive patients underwent vaginoplasty using a 3D laparoscopic system. Perioperative and postoperative outcomes were retrospectively evaluated.Between September 2016 and February 2020, 17 patients underwent 3D laparoscopic vaginoplasty with a rectosigmoid colon flap. Of them, 15 (88%) were transgender female patients, and 2 (12%) were cisgender female patients with congenital deformities. Among the 15 transgender patients, 12 (80%) underwent de novo surgeries and 3 (20%) underwent re-do surgeries. The mean age at the time of operation was 33.0 years, and the mean total operation time was 529 ± 128 minutes. The initial intraoperative mean vaginal depth was 15.2 ± 1.3 cm, and the 30-day readmission rate was 5.9% (1/17 cases). The mean follow-up duration was 24.8 months.Perioperative and postoperative outcomes suggest that 3D laparoscopic rectosigmoid colon vaginoplasty is a potentially acceptable, effective, and safe method for vaginal reconstruction.
MeSH term(s)	Adult ; Female ; Humans ; Laparoscopy/methods ; Laparoscopy/statistics & numerical data ; Middle Aged ; Postoperative Complications/epidemiology ; Postoperative Complications/surgery ; Reconstructive Surgical Procedures/methods ; Reconstructive Surgical Procedures/statistics & numerical data ; Retrospective Studies ; Sex Reassignment Surgery/methods ; Sex Reassignment Surgery/statistics & numerical data ; Surgical Flaps/surgery ; Transgender Persons/statistics & numerical data ; Vagina/physiopathology ; Vagina/surgery
Language	English
Publishing date	2021-09-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	80184-7
ISSN	1536-5964 ; 0025-7974
ISSN (online)	1536-5964
ISSN	0025-7974
DOI	10.1097/MD.0000000000027042
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Article: Significance of lymph node metastasis in the survival of stage IV colorectal cancer by hematogenous metastasis.

Han, Eon Chul / Kwon, Yoon-Hye / Park, Kyu Joo / Jeong, Seung-Yong / Kang, Sung-Bum / Oh, Jae Hwan / Heo, Seung Chul

Annals of surgical treatment and research

2018 Volume 95, Issue 4, Page(s) 201–212

Abstract: Purpose: Although lymph node (LN) metastasis is an important prognostic marker of colorectal cancer (CRC), the effect of LN metastasis on the survival of stage IV CRC is debated yet.: Methods: LN status and survivals as well as clinicopathological ... ...

Abstract	Purpose: Although lymph node (LN) metastasis is an important prognostic marker of colorectal cancer (CRC), the effect of LN metastasis on the survival of stage IV CRC is debated yet. Methods: LN status and survivals as well as clinicopathological features of synchronous stage IV CRC patients, operated for 8 years, were analyzed. Patients with hematogenous metastases were included only but those with peritoneal seeding or preoperative adjuvant therapy were not included. Results: Total 850 patients were enrolled and 77 (9.1%) were without LN metastases (N0M1). N0M1 patients were older and have favorable pathological features including lower CEA than patients with LN metastasis (N + M1). The pathologically poor features accumulated with N stage progression within N + M1. N0M1 had better 5-year overall survival (OS) and disease free survival than N + M1. And 5-year OS's within N + M1 group were stratified and different according to N stage progression, although the effect of N stage progression is different according to curative resection or not. When compared with stage III, 5-year OS of N0M1 with curative resection was comparable to that of anyTN2aM0 and was better than anyTN2bM1. Conclusion: LN metastasis is a significant prognostic factor in stage IV by hematogenous metastasis, too. N stage progression accumulates pathologically poor prognostic factors. However, the effect on survival of each N stage progression differs depending on curative resection or not of the hematogenous metastases.
Language	English
Publishing date	2018-09-28
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	3012234-X
ISSN	2288-6796 ; 2288-6575
ISSN (online)	2288-6796
ISSN	2288-6575
DOI	10.4174/astr.2018.95.4.201
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Article ; Online: Do the Oncological and Surgical Outcomes of Young and Older Women Differ in the Treatment of Colorectal Cancer?

Han, Eon Chul / Park, Ji Won / Kwon, Yoon-Hye / Song, Inho / Kim, Ji Sun / Ryoo, Seung-Bum / Jeong, Seung-Yong / Park, Kyu Joo

Journal of women's health (2002)

2018 Volume 28, Issue 2, Page(s) 258–267

Abstract: Background: The present study aimed to compare the surgical and oncological outcomes between young and older women with colorectal cancer (CRC).: Materials and methods: This retrospective study included 1815 women with CRC between 2010 and 2014. ... ...

Abstract	Background: The present study aimed to compare the surgical and oncological outcomes between young and older women with colorectal cancer (CRC). Materials and methods: This retrospective study included 1815 women with CRC between 2010 and 2014. Participants were divided into a young group (under the age of 65 years) and an old group (65 years and older). The surgical and oncological outcomes were compared between the two groups using univariate and multivariate analyses. Results: Around 45.1% (N = 819) patients were the older group. The old group had a higher comorbidity rate and a lower proportion of receiving postoperative chemotherapy. The old group also had a significantly higher blood loss (190 ± 611 mL vs. 145 ± 200 mL, p = 0.027) and a higher rate of intraoperative transfusion (5.4% vs. 3.0%, p = 0.011). They were found to develop more complications after surgery (11.7% vs. 7.8%, p = 0.015). The overall survival (OS) of the old group was lower than that of the young group (5-year OS rates: 72.8% vs. 83.8%, p < 0.001; adjusted hazard ratio: 1.86, 95% confidence interval: 1.49-2.33). However, the cancer-specific survival (CSS) was not significantly different between the old and young groups (5-year CSS rates: 84.7% vs. 84.9%, p = 0.076). Conclusions: Older women with CRC had poorer OS than young women with CRC, but had similar CSS. Therefore, the management of comorbidities along with cancer treatment may be important in older women with CRC.
MeSH term(s)	Age Factors ; Aged ; Colorectal Neoplasms/epidemiology ; Colorectal Neoplasms/mortality ; Colorectal Neoplasms/therapy ; Comorbidity ; Female ; Humans ; Middle Aged ; Multivariate Analysis ; Neoplasm Staging ; Republic of Korea ; Retrospective Studies ; Survival Rate ; Treatment Outcome
Language	English
Publishing date	2018-11-27
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1139774-3
ISSN	1931-843X ; 1059-7115 ; 1540-9996
ISSN (online)	1931-843X
ISSN	1059-7115 ; 1540-9996
DOI	10.1089/jwh.2018.6943
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Article: ERRATUM: Correction of Figure 1: Outcomes of surgical treatments for rectovaginal fistula and prognostic factors for successful closure: a single-center tertiary hospital experiences.

Ryoo, Seung-Bum / Oh, Heung-Kwon / Ha, Heon-Kyun / Han, Eon Chul / Kwon, Yoon-Hye / Song, Inho / Moon, Sang Hui / Choe, Eun Kyung / Park, Kyu Joo

Annals of surgical treatment and research

2020 Volume 99, Issue 1, Page(s) 63

Abstract: This corrects the article on p. 149 in vol. 97, PMID: 31508396.]. ...

Abstract	[This corrects the article on p. 149 in vol. 97, PMID: 31508396.].
Language	English
Publishing date	2020-06-29
Publishing country	Korea (South)
Document type	Published Erratum
ZDB-ID	3012234-X
ISSN	2288-6796 ; 2288-6575
ISSN (online)	2288-6796
ISSN	2288-6575
DOI	10.4174/astr.2020.99.1.63
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Article ; Online: The impact of visceral adipose tissue amount on the adequacy of lymph node retrieval in colorectal cancer surgery.

Choe, Eun Kyung / Park, Kyu Joo / Ryoo, Seung-Bum / Moon, Sang Hui / Oh, Heung-Kwon / Han, Eon Chul / Kwon, Yoon-Hye

Journal of surgical oncology

2017

Abstract: Background: Obesity is increasing worldwide, potentially influencing surgical outcomes in colorectal cancer (CRC) patients. We analyzed the effects of obesity indexes on lymph node (LN) retrieval in CRC patients.: Method: We applied obesity indexes ... ...

Abstract	Background: Obesity is increasing worldwide, potentially influencing surgical outcomes in colorectal cancer (CRC) patients. We analyzed the effects of obesity indexes on lymph node (LN) retrieval in CRC patients. Method: We applied obesity indexes of body mass index (BMI) and visceral (VAT) and subcutaneous (SAT) adipose tissue volumes to stage I-III CRC patients. The primary outcome was the effect of these indexes on the number of retrieved LNs (12 > LNs ≥ 12). Results: Among 519 patients, 35.6% had a BMI ≥ 25 kg/m Conclusion: Increased VAT may cause inadequate LN retrieval in CRC patients. In viscerally obese patients, VAT volumes should be considered when clinically interpreting LN status.
Language	English
Publishing date	2017-11-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	82063-5
ISSN	1096-9098 ; 0022-4790
ISSN (online)	1096-9098
ISSN	0022-4790
DOI	10.1002/jso.24876
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