1.Korean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 revised edition
Su Young KIM ; Min Seob KWAK ; Soon Man YOON ; Yunho JUNG ; Jong Wook KIM ; Sun-Jin BOO ; Eun Hye OH ; Seong Ran JEON ; Seung-Joo NAM ; Seon-Young PARK ; Soo-Kyung PARK ; Jaeyoung CHUN ; Dong Hoon BAEK ; Mi-Young CHOI ; Suyeon PARK ; Jeong-Sik BYEON ; Hyung Kil KIM ; Joo Young CHO ; Moon Sung LEE ; Oh Young LEE ; ; ;
Intestinal Research 2023;21(1):20-42
Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for managing advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of the limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: adenoma ≥10 mm in size; 3 to 5 (or more) adenomas; tubulovillous or villous adenoma; adenoma containing high-grade dysplasia; traditional serrated adenoma; sessile serrated lesion containing any grade of dysplasia; serrated polyp of at least 10 mm in size; and 3 to 5 (or more) sessile serrated lesions. More studies are needed to fully comprehend the patients who are most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.
2.Korean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 Revised Edition
Su Young KIM ; Min Seob KWAK ; Soon Man YOON ; Yunho JUNG ; Jong Wook KIM ; Sun-Jin BOO ; Eun Hye OH ; Seong Ran JEON ; Seung-Joo NAM ; Seon-Young PARK ; Soo-Kyung PARK ; Jaeyoung CHUN ; Dong Hoon BAEK ; Mi-Young CHOI ; Suyeon PARK ; Jeong-Sik BYEON ; Hyung Kil KIM ; Joo Young CHO ; Moon Sung LEE ; Oh Young LEE ; The Korean Society of Gastrointestinal Endoscopy, The Korean Society of Gastroenterology, Korean Ass
The Korean Journal of Gastroenterology 2022;80(3):115-134
Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for managing advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of the limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: 1) adenoma ≥10 mm in size; 2) 3-5 (or more) adenomas; 3) tubulovillous or villous adenoma; 4) adenoma containing high-grade dysplasia; 5) traditional serrated adenoma; 6) sessile serrated lesion (SSL) containing any grade of dysplasia; 7) serrated polyp of at least 10 mm in size; and 8) 3-5 (or more) SSLs. More studies are needed to fully comprehend the patients who are most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.
3.Korean guidelines for postpolypectomy colonoscopic surveillance: 2022 revised edition
Su Young KIM ; Min Seob KWAK ; Soon Man YOON ; Yunho JUNG ; Jong Wook KIM ; Sun-Jin BOO ; Eun Hye OH ; Seong Ran JEON ; Seung-Joo NAM ; Seon-Young PARK ; Soo-Kyung PARK ; Jaeyoung CHUN ; Dong Hoon BAEK ; Mi-Young CHOI ; Suyeon PARK ; Jeong-Sik BYEON ; Hyung Kil KIM ; Joo Young CHO ; Moon Sung LEE ; Oh Young LEE ; ; ;
Clinical Endoscopy 2022;55(6):703-725
Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for the management of advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: (1) adenoma ≥10 mm in size; (2) 3 to 5 (or more) adenomas; (3) tubulovillous or villous adenoma; (4) adenoma containing high-grade dysplasia; (5) traditional serrated adenoma; (6) sessile serrated lesion (SSL) containing any grade of dysplasia; (7) serrated polyp of at least 10 mm in size; and (8) 3 to 5 (or more) SSLs. More studies are needed to fully comprehend the patients most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.
4.Outcomes of living donor kidney transplantation in diabetic patients: age and sex matched comparison with non-diabetic patients.
Chung Hee BAEK ; Hyosang KIM ; Seung Don BAEK ; Mun JANG ; Wonhak KIM ; Won Seok YANG ; Duck Jong HAN ; Su Kil PARK
The Korean Journal of Internal Medicine 2018;33(2):356-366
BACKGROUND/AIMS: Kidney transplantation (KT) reportedly provides a significant survival advantage over dialysis in diabetic patients. However, KT outcome in diabetic patients compared with that in non-diabetic patients remains controversial. In addition, owing to recent improvements in the outcomes of KT and management of cardiovascular diseases, it is necessary to analyze outcomes of recently performed KT in diabetic patients. METHODS: We reviewed all diabetic patients who received living donor KT between January 2008 and December 2011. Each patient was age- and sex-matched with two non-diabetic patients who received living donor KT during the same period. The outcomes of living donor KT were compared between diabetic and non-diabetic patients. RESULTS: Among 887 patients, 89 diabetic patients were compared with 178 non-diabetic patients. The incidence of acute rejection was not different between the diabetic and non-diabetic patients. Urinary tract infection and other infections as well as cardiovascular events occurred more frequently in diabetic patients. However, diabetes, cardiovascular disease, and infection were not significant risk factors of graft failure. Late rejection (acute rejection after 1 year of transplantation) was the most important risk factor for graft failure after adjusting for diabetes mellitus (DM), human leukocyte antigen mismatch, rejection and infection (hazard ratio, 56.082; 95% confidence interval, 7.169 to 438.702; p < 0.001). Mortality was not significantly different between diabetic and non-diabetic patients (0 vs. 2, p = 0.344 by log-rank test). CONCLUSIONS: End-stage renal disease patients with DM had favorable outcomes with living donor kidney transplantation.
Cardiovascular Diseases
;
Diabetes Mellitus
;
Dialysis
;
Humans
;
Incidence
;
Kidney Failure, Chronic
;
Kidney Transplantation*
;
Kidney*
;
Leukocytes
;
Living Donors*
;
Mortality
;
Risk Factors
;
Transplants
;
Urinary Tract Infections
5.A 6-Week Oral Toxicity Study of Oral Cholera Vaccine in Sprague-Dawley Rats.
Yeong Ok BAEK ; Seuk Keun CHOI ; Seo Ho SHIN ; Kyo Hwan KOO ; Ho Young CHOI ; Seung Bum CHA ; Yong Chun LI ; Hyeon Jeong YOO ; Joo Young LEE ; Ki Hyun KIL ; Hak Soo KIM ; Min Soo KANG ; Boo Hyun KANG ; Kap Ho KIM ; Jin Sook BAE
Toxicological Research 2012;28(4):225-233
The present study was carried out to examine the toxicity and target organs of oral cholera vaccine (OCV) after repeated oral administration in Sprague-Dawley rats for 6 weeks (3 administrations, once every 2 weeks). OCV is an inactivated oral cholera vaccine that contains Vibrio cholerae and confers protection against cholera caused by V. cholera serogroups O1 (Inaba and Ogawa serotypes) and O139 (strain 4260B). The animals were orally administered either OCV placebo (negative control) or OCV at a dose equivalent to 240 times the anticipated human dose. Throughout the administration period, no significant change was detected in clinical signs, body weight, food or water consumption, urinalysis results, hematological and clinical biochemistry test results, organ weights, necropsy, or histopathological examination results. Minor changes were found in hematological and clinical biochemistry tests; however, these changes were within normal ranges. The above results suggest that oral administration of OCV in rats did not induce any toxicologically meaningful changes, and the target organs could not be determined. This study was conducted in accordance with the guidelines established by Good Laboratory Practice (2009-183, KFDA, December 22, 2009) and the OECD Principles of Good Laboratory Practice (1997).
Administration, Oral
;
Animals
;
Biochemistry
;
Body Weight
;
Cholera
;
Drinking
;
Humans
;
Organ Size
;
Rats
;
Rats, Sprague-Dawley
;
Reference Values
;
Urinalysis
;
Vibrio cholerae
6.Proteasome-Inhibitor-Based Primary Therapy for Antibody-Mediated Rejection in a Renal Transplant Recipient.
Se Jeong PARK ; Hoon YU ; Sung Hee KANG ; Seung Don BAEK ; Chung Hee BAEK ; Jae Ho JEONG ; Su Kil PARK
Korean Journal of Medicine 2011;81(6):780-785
Donor-specific anti-human leukocyte antigen antibodies (DSA) following kidney transplantation predict the evolution of humoral rejection and reduced graft survival. Rapid, complete elimination of DSA during antibody-mediated rejection (AMR) is rarely achieved with traditional antihumoral therapies. We report the case of a 39-year-old female who was admitted for increasing azotemia and diagnosed with AMR based on diffusely positive histological changes on C4d immunostaining. In this case, bortezomib reversed the histological changes and induced a reduction in DSA. Proteasome-inhibitor-based combination therapy is a potential means for rapid DSA elimination in antibody-mediated rejection in renal transplant recipients.
Adult
;
Antibodies
;
Azotemia
;
Boronic Acids
;
Complement C4b
;
Female
;
Graft Survival
;
HLA Antigens
;
Humans
;
Kidney Transplantation
;
Leukocytes
;
Peptide Fragments
;
Proteasome Inhibitors
;
Pyrazines
;
Rejection (Psychology)
;
Transplants
;
Bortezomib
7.Proteasome-Inhibitor-Based Primary Therapy for Antibody-Mediated Rejection in a Renal Transplant Recipient.
Se Jeong PARK ; Hoon YU ; Sung Hee KANG ; Seung Don BAEK ; Chung Hee BAEK ; Jae Ho JEONG ; Su Kil PARK
Korean Journal of Medicine 2011;81(6):780-785
Donor-specific anti-human leukocyte antigen antibodies (DSA) following kidney transplantation predict the evolution of humoral rejection and reduced graft survival. Rapid, complete elimination of DSA during antibody-mediated rejection (AMR) is rarely achieved with traditional antihumoral therapies. We report the case of a 39-year-old female who was admitted for increasing azotemia and diagnosed with AMR based on diffusely positive histological changes on C4d immunostaining. In this case, bortezomib reversed the histological changes and induced a reduction in DSA. Proteasome-inhibitor-based combination therapy is a potential means for rapid DSA elimination in antibody-mediated rejection in renal transplant recipients.
Adult
;
Antibodies
;
Azotemia
;
Boronic Acids
;
Complement C4b
;
Female
;
Graft Survival
;
HLA Antigens
;
Humans
;
Kidney Transplantation
;
Leukocytes
;
Peptide Fragments
;
Proteasome Inhibitors
;
Pyrazines
;
Rejection (Psychology)
;
Transplants
;
Bortezomib
8.Minimally Invasive Plate Osteosynthesis to Prevent or Treat the Deformity after Distraction Osteogenesis.
Chang Wug OH ; Byung Chul PARK ; Il Hyung PARK ; Hee Soo KYUNG ; Woo Kie MIN ; Seung Hoon BAEK ; Seung Kil BAEK
The Journal of the Korean Orthopaedic Association 2007;42(6):764-771
PURPOSE: To determine the efficacy of minimally invasive plate osteosynthesis (MIPO) for distraction callus after a lengthening procedure with an external fixator. MATERIALS AND METHODS: Distraction osteogenesis were performed using an external fixator for growth arrest (7 cases), congenital pseudoarthrosis of tibia (2 cases), and congenital leg length discrepancy (2 cases). MIPO was performed using a locking compression plate over the distraction callus. The mean age of the index procedure was 11 years, and mean amount of distraction was 5.4 cm. Eight were treated earlier to remove the external fixator after achieving of the target length, and 3 were treated as a salvage operation of fractures after removal. RESULTS: In all patients, the distraction callus healed with its length or correction into the original alignment maintained. The mean external fixation index was 34.3 days/cm and the mean healing index was 52.6 days/cm. In 8 patients with the early removal of the external fixator, the mean external fixation index was 26.9 days/cm. No patient developed a deep infection or implant failure. All patients recovered their preoperative joint motion and were satisfied with their function. CONCLUSION: MIPO can prevent or correct a deformity after distraction osteogenesis, and allow patients to return to their daily life earlier.
Bony Callus
;
Congenital Abnormalities*
;
External Fixators
;
Humans
;
Joints
;
Leg
;
Osteogenesis, Distraction*
;
Pseudarthrosis
;
Tibia
9.Intracoronary Stent Deployment without Antiplatelet Agents in a Patient with Idiopathic Thrombocytopenic Purpura.
Hun Jun PARK ; Ki Bae SEUNG ; Pum Joon KIM ; Hyun Hee KANG ; Chan Seok PARK ; Uk Hyun KIL ; Min Seok CHOI ; Sang Hong BAEK ; Jae Hyung KIM ; Kyu Bo CHOI
Korean Circulation Journal 2007;37(2):87-90
Deciding on the appropriate antiplatelet therapy is a challenge when treating patients with idiopathic thrombocytopenic purpura (ITP) and who are undergoing percutaneous coronary intervention (PCI). We describe here a case of PCI in a patient with chronic, refractory ITP. A 61-year-old woman presented with exertional chest pain and a low platelet count (4 x 109/L) at admission. Coronary angiography revealed 99% stenosis of the mid left anterior descending artery and 95% stenosis of the mid left circumflex artery. Antiplatelet agents couldn't be administered because of the risk of bleeding. After transfusion of platelets and administering intravenous immunoglobulin, we deployed baremetal stents in both lesions without administering any antiplatelet agents. Although focal in-stent restenosis developed 5 months later, there was no episode of stent thrombosis despite not using antiplatelet agents. The present case suggests that the rate of stent thrombosis may be lower was previously thought and antiplatelet therapy may be considered on a case by case for patient suffering with thrombocytopenia.
Arteries
;
Chest Pain
;
Constriction, Pathologic
;
Coronary Angiography
;
Female
;
Hemorrhage
;
Humans
;
Immunoglobulins
;
Middle Aged
;
Myocardial Infarction
;
Percutaneous Coronary Intervention
;
Platelet Aggregation Inhibitors*
;
Platelet Count
;
Purpura, Thrombocytopenic, Idiopathic*
;
Stents*
;
Thrombocytopenia
;
Thrombosis

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