Constipation in Patients With Chronic Kidney Disease

Ra Ri Cha,Seon-Young Park,Michael Camilleri 대한소화기 기능성질환∙운동학회 2023 Journal of Neurogastroenterology and Motility (JNM Vol.29 No.4

Constipation is a frequent symptom in patients with chronic kidney disease (CKD). This review outlines the mechanisms and management of constipation in patients with CKD from a physician’s perspective. Common causes of constipation in patients with CKD include concomitant medications, low dietary fiber intake, water-restricted diet, lack of physical activity, altered gut microbiota, and reduced gastrointestinal motility. Constipation has a negative impact on overall health, and, in particular, the presence of constipation has been associated with worsening kidney function and increased risk of developing advanced stages of CKD. Although lifestyle and dietary modifications may not always be practical for patients with CKD, they are recommended because they are beneficial as they lower mortality in patients with CKD. The use of laxatives containing magnesium salts, bulking agents, and osmotic laxatives may have insufficient efficacy and may be associated with adverse effects. In contrast, lactulose and lubiprostone have been shown to exhibit reno-protective effects. Linaclotide and plecanatide have very limited systemic absorption and appear safe in patients with CKD. Tenapanor reduces paracellular intestinal phosphate absorption in addition to blocking sodium uptake by enterocytes, and provides additional benefit in patients patients with CKD who have hyperphosphatemia and constipation. Prucalopride leads to improvements in bowel function and constipation-related symptoms in cases in which response to conventional laxatives are inadequate. However, the dose of prucalopride should be reduced to 1 mg once daily for patients with CKD. In conclusion, there are important advances on the impact and treatment of constipation in patients with CKD.

Self-reported Non-celiac Gluten Sensitivity in the Korean Population: Demographic and Clinical Characteristics

Ra Ri Cha,Jeong Hwan Kim,Hoon Sup Koo,Kee Wook Jung,Yang Won Min,Chang Hwan Choi,Han Seung Ryu,Yong Hwan Kwon,Dae Hyeon Cho,Joong Goo Kwon,Kyung Sik Park,Hyun Jin Kim 대한소화기 기능성질환∙운동학회 2022 Journal of Neurogastroenterology and Motility (JNM Vol.28 No.2

Background/AimsNon-celiac gluten sensitivity is characterized by intestinal and extra intestinal symptoms associated with the consumption of gluten-containing food. Since biomarkers for non-celiac gluten sensitivity are lacking, its prevalence is estimated based on self-reported symptoms. However, no data exist on self-reported non-celiac gluten sensitivity in the Korean population. Thus, we aim to investigate the prevalence of self-reported non-celiac gluten sensitivity in the Korean population and to determine its demographic and clinical characteristics. MethodsThis study surveyed Korean participants aged 18-80 years who visited gastroenterology outpatient clinics at 9 tertiary hospitals in South Korea from January 2016 to February 2017. They were questioned regarding symptoms related to gluten ingestion: degree of discomfort (visual analog scale score), frequency, time of symptom onset, and duration. Abdominal discomfort caused by 11 different kinds of gluten-containing Korean food items was investigated. ResultsMore non-celiac gluten sensitivity self-reporters were identified among those with irritable bowel syndrome (33.6%) than among controls (5.8%). Major gastrointestinal symptoms included bloating (75.0%), abdominal discomfort (71.3%), and belching (45.0%). Common extra-intestinal symptoms included fatigue (20.0%) and headache (13.7%). More than half of those who self-reported non-celiac gluten sensitivity (66.3%) developed symptoms within 1 hour of food ingestion, and symptoms were localized in the upper abdomen (37.5%) and entire abdomen (30.0%). ConclusionOur findings suggest that if there are gluten-related symptoms in irritable bowel syndrome, the possibility of accompanying non-celiac gluten sensitivity should be considered.

Find Out the Differences by Types of Hiatal Hernia!

( Ra Ri Cha ) 대한소화기 기능성질환·운동학회 2020 Journal of Neurogastroenterology and Motility (JNM Vol.26 No.1

Primary Gastric Small Cell Carcinoma (Presenting as Linitis Plastica) Diagnosed Using Endoscopic Ultrasound-Guided Biopsy: A Case Report

Ra Ri Cha,Jin Kyu Cho,Wan Soo Kim,Jin Joo Kim,Jae Min Lee,Sang Soo Lee,Hyun Jin Kim 대한소화기내시경학회 2019 Clinical Endoscopy Vol.52 No.3

Small cell carcinomas are the most aggressive, highly malignant neuroendocrine tumors; among these, gastric small cell carcinoma(GSCC) is extremely rare. Here we report a case of a patient with primary GSCC, presenting as linitis plastic, who was diagnosed usingendoscopic ultrasound (EUS)-guided biopsy. With undiagnosed linitis plastica, an 80-year-old woman was referred to our institution. Abdominal computed tomography revealed irregular wall thickening extending from the gastric body to the antrum. Endoscopysuspected to have Borrmann type IV advanced gastric cancer. EUS of the stomach showed diffuse submucosal thickening of the gastricwall, mainly the antrum. EUS-guided bite-on-bite biopsy confirmed the diagnosis of GSCC. In general, GSCC is diffcult to diagnoseand careful examination is necessary to determine the therapeutic strategy; however, EUS is particularly helpful in the differentialdiagnosis of a lesion presenting as linitis plastica.

위염전

차라리 ( Ra Ri Cha ),김현진 ( Hyun Jin Kim ) 대한소화기학회 2021 대한소화기학회지 Vol.77 No.1

십이지장에 초점을 맞춘 기능성 소화불량증의 새로운 병태생리와 치료

차라리 ( Ra Ri Cha ),김현진 ( Hyun Jin Kim ) 대한소화기학회 2020 대한소화기학회지 Vol.75 No.2

상부위장관 상피하병변 환자에서 상피하종양과 위장관기질종양의 예측인자

차라리 ( Ra Ri Cha ),오혜원 ( Hye Won Oh ),유현선 ( Hyun Seon Yoo ),홍정우 ( Jeong Woo Hong ),이상수 ( Sang Soo Lee ),김홍준 ( Hong Jun Kim ),하창윤 ( Chang Yoon Ha ),김현진 ( Hyun Jin Kim ),김태효 ( Tae Hyo Kim ),이옥재 ( Ok Jae 대한소화기학회 2014 대한소화기학회지 Vol.64 No.4

목적: 위장관 상피하병변에서 종양성 병변을 비종양성 병변으로부터 감별하는 것은 환자의 적절한 치료에 매우 중요하다. 저자들은 상부위장관 상피하병변 환자에서 종양성 상피하병변을 감별할 수 있는 예측인자를 알아보고자 이 연구를 수행하였다. 대상 및 방법: 2008년 1월부터 2013년 6월까지 경상대학교병원에서 상부위장관 상피하병변에 대해 EUS를 시행한 527예의 의무기록을 후향적으로 검토하여, 내시경적 또는 수술적 절제를 통하여 조직학적 확진이 가능했던 환자 84예를 선정하고, 종양 및 비종양성 상피하병변으로 분류하여 특성을 비교 분석하였다. 결과: 조직학적으로 확인된 84예의 상피하병변 중 상피하종양이 64예(76.2%), 비종양성 상피하병변은 20예(23.8%)였다. 상피하종양은 GIST (42.9%)와 평활근종(19.0%)이 가장 많았다. 성별(p=0.195), 병변의 크기(p=0.266), 에코상(p=0.051)은 상피하종양군과 비종양성병변군 사이에 유의한 차이가 없었다. 비종양성 상피하병변군에 비하여 상피하종양군의 평균연령 (p=0.047), 호발연령대(p=0.047) 및 50세 이상 환자의 비율 (p=0.015)이 높았으며, 고유근층 기원(79.7%)이 많았다. (p=0.001). 상피하종양 중, GIST는 평활근종보다 환자의 평균연령이 높고(57.7세 vs. 47.0세, p=0.049), 50세 이상 (p=0.016), 종양의 위체부 위치(p<0.001), 고유근층 기원 (p=0.003)이 많았다. 다변량분석에서 환자의 연령(≥50세), 종양의 크기(≥30 mm), 고유근층기원이 점막하종양의 독립적인 예측인자였고, 평활근종과 GIST의 감별인자는 찾을 수 없었다. 결론: 상부위장관 상피하병변으로 50세 이상, 30 mm 이상, 고유근층 기원이 상피하종양의 독립적인 예측인자였으며, 평활근종과 감별할 수 있는 GIST의 예측인자는 없으므로 고유근층 기원의 위 상피하종양은 GIST의 가능성을 고려하여 적극적인 치료 및 철저한 추적관찰이 필요하다. Background/Aims: Differentiating subepithelial tumor (SET) from non-neoplastic gastrointestinal subepithelial lesion (SEL) and gastrointestinal stromal tumor (GIST) from leiomyoma are very important for proper management. This study was conducted to analyze factors that could predict the presence of SET and GIST in patients with upper gastrointestinal (UGI) SELs. Methods: A total of 527 patients were diagnosed with UGI SELs endosonographically at Gyeongsang National University Hospital from January 2008 to June 2013. Among these patients, histologic diagnosis was made in 84 patients. Data were collected by retrospectively reviewing the medical records. Variables that could differentiate neoplastic from non-neoplastic SELs and GIST from leiomyoma were analyzed. Results: Among 84 patients with SELs, 64 (76.2%) had SETs including GIST (42.9%) and leiomyoma (19.0%). The patients` mean age (p=0.047), peak age distribution (p=0.047), proportions of patient ≥50 years (p=0.015), and number of proper muscle-originated lesions (p=0.001) were higher in neoplastic than non-neoplastic group. There were no significant differences in gender (p=0.195), size (p=0.266) and echogenicity (p=0.051) of the lesions. Older age (57.7 vs. 47.0 years, p=0.049), age ≥50 years (p=0.016), location in gastric body (p<0.001), and proper muscle origin (p=0.003) were significantly related to the presence of GIST compared to leiomyoma. Multiple regression analysis showed that the patients` age ≥50 years, size ≥30 mm, and proper muscle-origin of lesion were independent predictors of SET; however, there were no predictive factors that could differentiate GIST from leiomyoma. Conclusions: In patients with SEL, the possibility of having SET should be considered for patients ≥50 years with UGI SELs ≥30 mm that arise from the proper muscle. Thorough monitoring and aggressive management is warranted for those with gastric muscular SET since factors predictive of GIST are lacking. (Korean J Gastroenterol 2014;64:189-197)

식도 암육종 환자에서 이시적으로 발생한 식도 편평상피세포암

차라리 ( Ra Ri Cha ),정운태 ( Woon Tae Jung ),오혜원 ( Hye Won Oh ),김희진 ( Hee Jin Kim ),하창윤 ( Chang Yoon Ha ),김홍준 ( Hong Jun Kim ),김태효 ( Tae Hyo Kim ),고경혁 ( Gyung Hyuck Ko ) 대한소화기학회 2014 대한소화기학회지 Vol.64 No.6

Esophageal carcinosarcoma is a rare malignant esophageal neoplasm consisting of both carcinomatous and sarcomatous elements, with an incidence of 0.5%. There have been only a few case reports of carcinosarcoma and squamous cell carcinoma coexisting in the esophagus. However, all of these are cases of synchronous or metachronous development of carcinosarcoma after chemoradiotherapy in patients of esophageal squamous cell carcinoma. A 53-year-old man underwent esophagogastroduodenoscopy because of chest pain for several months. Endoscopic examination revealed a huge pedunculated esophageal polypoid mass. Endoscopic submucosal dissection (ESD) was performed and histopathologic examination confirmed spindle cell carcinoma (carcinosarcoma). He refused additional esophagectomy. After 21 months, third follow-up endoscopy showed poorly-demarcated flat, faint discolored lesions at different location from the previous ESD site and endoscopic biopsies confirmed squamous cell carcinoma. To the best of our knowledge, this is the first case of metachronous development of esophageal squamous cell carcinoma in a patient with esophageal carcinosarcoma. (Korean J Gastroenterol 2014;64:364-369)

원발성 하부위장관 B세포 림프종의 임상 특징 및 예후

차라리 ( Ra Ri Cha ),백동훈 ( Dong Hoon Baek ),이경원 ( Gyeong Won Lee ),박선자 ( Seun Ja Park ),이종훈 ( Jong Hoon Lee ),박종하 ( Jong Ha Park ),김태오 ( Tae Oh Kim ),이상훈 ( Sang Heon Lee ),김형욱 ( Hyung Wook Kim ),김현진 ( Hy 대한소화기학회 2021 대한소화기학회지 Vol.78 No.6

Background/Aims: This multicenter study reviewed the clinical features and prognosis according to the primary site of involvement and the treatment modality in patients with B-cell primary intestinal lymphoma (PIL). Methods: Among 125 consecutive patients diagnosed with PIL, 100 patients were analyzed. Results: The median age was 59 years, and the male to female ratio was 1.86:1. Diffuse large B-cell lymphoma (66/100, 66.0%) was the most common histological subtype. The estimated 5-year survival rate (5-YSR) was 48.5%. The 5-YSR was similar regardless of the type of primary treatment (chemotherapy alone vs. surgery/chemotherapy, 50.7 vs. 45.3%, p=0.582). A comparison of the survival according to the primary site of involvement revealed a 5-YSR of 32.5% (p=0.027), 64.3% (reference), 46.5% (p=0.113), and 49.8% (p=0.024) for the small intestine, ileocecal region, large intestine, and multiple sites, respectively. Multivariate analysis, however, revealed a low hemoglobin level, advanced Ann Arbor stage, and aggressive histological type to be independent prognostic factors for shorter survival but not ileocecal region involvement. Conclusions: The Ann Arbor stage, hemoglobin level, and histological type were independent prognostic factors for survival, while the primary site of involvement and treatment modality did not affect the prognosis in patients with B-cell PIL. (Korean J Gastroenterol 2021;78:320-327)

호산구성 장염

차라리 ( Ra Ri Cha ),안효정 ( Hyo Jung An ),김현진 ( Hyun Jin Kim ) 대한소화기학회 2018 대한소화기학회지 Vol.72 No.2