• Journal of Gastric Cancer
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• 제21권4호
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• pp.426-438
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• 2021

Purpose: While the incidence of Barrett's neoplasia has been increasing in Western countries, the disease remains rare in Asian countries. Therefore, very few studies have investigated the endoscopic treatment for Barrett's neoplasia in Korea. Endoscopic submucosal dissection (ESD) enables en bloc and complete resection of gastrointestinal neoplastic lesions. This study aimed to evaluate the therapeutic outcomes of ESD for Barrett's neoplasia in a single center in Korea and to examine the predictive factors for incomplete resection. Materials and Methods: We conducted a retrospective observational study of 18 patients who underwent ESD for superficial Barrett's neoplasia (dysplasia and early cancer) between January 2010 and December 2019 at Pusan National University Hospital. The therapeutic outcomes of ESD and procedure-related complications were analyzed. Results: En bloc resection, complete resection, and curative resection were performed in 94%, 72%, and 61% of patients, respectively. Histopathology (submucosal or deeper invasion of the tumor) was a significant predictive factor for incomplete resection (P=0.047). Procedure-related bleeding and stenosis were not observed, whereas perforation occurred in one case. During the median follow-up period of 12 months (range, 6-74 months), local recurrence occurred in 2 patients with incomplete resection, one patient underwent repeat ESD, and the other patient received concurrent chemoradiotherapy. The 3-year overall and disease-specific survival rates were 73% and 93%, respectively. Conclusions: ESD seems to be an effective and safe treatment for superficial Barrett's neoplasia in Korea. Nevertheless, the suitability of ESD for Barrett's cancer cases should be determined considering the high risk of deep submucosal invasion.

• 대한수의학회지
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• 제61권4호
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• pp.36.1-36.8
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• 2021

The objective of this study was to evaluate the beneficial effects of the short-term application of insect-based diet in canine allergic dermatitis. Total 19 atopic dogs with concurrent cutaneous adverse food reactions were enrolled and classified into 3 groups. The treatment group (n = 7) was fed insect-based diet, the positive control group (n = 6) was fed salmon-based diet, and the negative control group (n = 6) was fed commercial or homemade diet for 12 weeks. The degree of skin lesions was evaluated based on canine atopic dermatitis extent and severity index (CADESI-4). Additionally, transepidermal water loss (TEWL) and pruritus visual analog scale were evaluated. All indices were evaluated every 4 weeks after the initial administration of hypoallergenic diets. In the treatment group, significant decrease in the CADESI-4 score was observed at 8 weeks compared to the baseline score (p = 0.031). There were significant differences in the CADESI-4 score between the groups at 8 weeks (p = 0.008), 12 weeks (p = 0.012), and TEWL at 12 weeks (p = 0.022). This preliminary result demonstrates the potential hypoallergenicity of an insect-based diet through features that diminish cutaneous lesions and skin barrier dysfunction.

• 한방비만학회지
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• 제24권1호
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• pp.41-53
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• 2024

Objectives: We used the Korea Health Panel Annual Data 2019 to analyze factors related to visits to both Korean medicine and Western medicine (WM) outpatient clinics among patients with overweight and obesity. Methods: The inclusion criteria for this study are as follows: 1) adults over 18 years of age, 2) overweight or obese with a body mass index of 25.0 or more, 3) visited WM outpatient clinics at least once during 2019. Total 2,963 individuals were included in WM group or integrative medicine (IM) group. Using the Andersen healthcare utilization model, factors related to healthcare utilization of the participants were classified. Binomial logistic regression analysis was used to analyze factors associated with IM use. Results: Among the participants, 80.49% (n=2,385) were assigned to WM group and 19.51% (n=578) to IM group. As a result of the regression analysis, factors significantly related to the use of IM included the elderly over 65 years of age, sex (men), college or higher education level, residential area (Gwangju/Jeolla/Jeju), presence of cancer, and presence of musculoskeletal disease. The main diagnosis associated with both WM and IM use was most frequently musculoskeletal conditions. Also, IM group received WM treatment for musculoskeletal conditions more frequently compared to WM group. Conclusions: This study is the first to analyze healthcare utilization patterns among overweight or obese patients in Korea. The current findings suggest that the presence of musculoskeletal conditions, especially in this population, may be strongly associated with concurrent use of IM services.

• Radiation Oncology Journal
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• 제24권2호
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• pp.123-127
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• 2006

목적: 7예의 자궁경부의 유리세포암 초기 병기 환자들을 통하여 임상적 특징, 병리조직학적 소견, 치료방법 및 예후를 알아보고자 하였다. 대상 및 방법: 1993년 1월부터 2005년 12월까지 계명의대 동산의료원에서 병리조직학적으로 자궁경부암기 유리세포암으로 확인된 FIGO 병기 IB 6예와 IIA환자 1예, 모두 7예의 환자를 대상으로 하였으며 이들 중 1예의 IB 환자에서는 자궁 내 임신 22주 상태였다. 환자들의 의무기록을 통하여 임상적 특징, 병리조직학적 소견, 치료방법 및 예후를 분석하였다. 진단은 병리조직학적으로 유리세포암의 특징적 소견을 보이는 세포들로 50% 이상 구성되어있을 때 유리세포암으로 진단하였다. FIGO 임상병기 IB인 6명의 환자에서 근치적 자궁절제술 및 양측 골반 림프절 절제술을 시행하였으며 이들 중 2명은 수술 후 동시 항암화학방사선요법을 받았다. 1예의 IIA 환자는 동시 항암화학방사선요법으로 근치적 방사선치료를 시행하였다. 결과: 조직학적으로 자궁경부암으로 진단 받은 전체 환자 3,745명 중 유리세포암 환자는 7명이었다(0.2%). 7예의 자궁경부 유리세포암 환자의 평균 연령은 44세였으며, 연령 분포는 35세에서 53세까지였다. 가장 흔한 증상은 질 출혈로 7예 중 5예에서 나타났다(86%). 치료 전 시행한 펀치 생검 소견으로 전체 7예에서 2예에서만 유리세포암으로 진단 가능하였으며, 나머지 5예는 선편평상피세포암 1예, 미분화 선암 2예, 편평상피세포암 2예로 진단되었으나, 수술 후 병리조직학적 검사에서 유리세포암으로 확진되었다. 추적관찰기간은 13개월에서 150개월이며, 평균 추적기간은 73개월로 모두 무병상태로 생존하고 있다. 결론: 자궁경부의 유리세포암은 비록 공격적이고 악성도가 높은 종양이지만, 초기 암 환자는 정확한 병기평가와 근치적 수술 후 동시 항암화학방사선치료와 같은 적극적인 보조치료를 시행하면 보다 향상된 생존율을 얻을 수 있을 것으로 예상된다.

• Radiation Oncology Journal
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• 제25권1호
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• pp.34-42
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• 2007

목 적: 국소적으로 진행된 직장암환자에서 수술 전 동시화학방사선요법을 시행한 환자들의 항문 괄약근 보존율과 병기 강하율 등을 분석하고자 후향적 임상 연구를 시행하였다. 대상 및 방법: 2002년 1월부터 2005년 12월까지 조직학적으로 확진된 직장암 환자 중, 병기가 T2 이상이거나 림프절 전이가 있는 환자를 대상으로 하였다. 한림대학교 성심병원 방사선종양학과에서 수술 전 동시화학방사선요법을 시행 받은 36명 중, 본원에서 수술을 시행한 26명을 대상으로 연구를 시행하였다. 환자들은 수술 전 병기결정을 위한 검사를 시행하였고 방사선치료는 CT를 촬영하여 치료계획을 세웠으며 매일 1.8 Gy로 주 5회, 총 방사선 조사량 $45.0{\sim}52.2\;Gy$까지 3차원 방사선치료 방법으로 시행하였으며, 방사선치료 첫째 주와 다섯째 주에 5-FU와 leucovorine을 동시 투여하였다. 수술은 동시화학방사선요법 종료 후 약 $2{\sim}4$주경에 시행하였다. 결 과: 대상 환자의 연령 중앙값은 61.9세($34{\sim}78$)였으며, 남자가 21명, 여자가 5명이었고 추적 관찰 기간의 중앙값은 28개월($11{\sim}44$)이었다. 모든 환자에서 절제연 음성인 근치절제가 가능하였으나 병리적으로 완전 반응을 보인 경우는 없었다. 수술은 3예에서 복회음부 절제술을, 나머지 23예에서 하전방절제술이 시행되어 괄약근 보존율은 88.5% (23/26)였다. 수술 후 병기 강하는 12예로 병기 강하율은 46.2%였으며 19예에서 종양 크기가 감소되어 종양크기 감소율은 73%였다. 국소 재발이 1명, 원격 전이가 3명에서 관찰되었으며 3년 무재발 생존율은 96.7%, 3년 무전이 생존율은 87%, 그리고 3년 무진행 생존율은 83.1%였다. 치료와 관련된 급성 독성으로는 Grade 3 & 4 빈혈 각각 1예, Grade 3 백혈구 감소증 1예, Grade 3 장폐색 1예가 관찰되었다. 결 론: 직장암 환자들에서 수술 전 동시화학방사선요법은 근치적 수술을 시행한 경우 높은 괄약근보존율과 수술 후 병기감소율을 보였으며 치료에 따른 독성도 대부분 경미하고 높은 순응도를 보여 효과적인 방법으로 판단되며 앞으로 많은 환자들을 대상으로 장기간에 걸친 추적 관찰을 요한다.

• Radiation Oncology Journal
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• 제29권1호
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• pp.11-19
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• 2011

목적: 수술 전 항함화학방사선치료는 국소 진행된 직장암에서 표준치료로 알려져 있다. 이 연구는 동시 항암화학 방사선치료를 받은 국소 진행된 직장암 환자의 생존율 및 병기하향률에 영향을 미치는 인자들을 분석하였다. 대상 및 방법: 2004년 3월부터 2008년 8월까지 수술 전 항암화학방사선치료를 받은 국소 진행된 직장암 환자 33명을 대상으로 하였다. 모든 환자는 전 골반 방사선조사를 시행하였으며 28명(84.8%)은 동시적 소조사야 추가 방사선치료, 5명(15.2%)은 조사영역축소 방사선치료를 실시하였다. 총 방사선량은 50.4 Gy이었으며, 5-fluorouracil를 동시 투여하였다. 추적관찰 기간은 중앙값 24.2개월(9.8~64.7개월)이었다. 결과: 33명 중 31명(93.9%)에서 수술이 시행되었으며, 24명(72.7%)은 항문괄약근보존술, 7명(21.2%)은 복회음부 절제술이 시행되었다. 3년 생존율과 무병생존율은 각각 78.8%, 63.4% 이었다. 무병생존율에 영향을 미치는 인자로 수술 후 병리학적 소견이 중요하였다. 병리학적 N 병기(p=0.001), 절제면 침윤 여부(p=0.029) 및 분화도(p=0.030)가 통계학적으로 의미 있게 영향을 미치는 인자였다. 종양 크기 (p=0.081), 림프혈관과 신경주위 침윤여부(p=0.073) 모두 영향을 마치는 인자로서의 경향성을 보였다. 한편, 수술 전 임상 소견으로는 임상적 T 병기만이 유의한 결과를 보였다(p=0.018). 병리학적 완전관해율은 9.1%였으며, T병기하향률은 30.3%, N 병기하향률은 72.7%로 나타났다. 단변량 분석에서 항암화학방사선치료 후 수술까지의 기간 및 임상적 T 병기가 의미 있는 병기하향의 예측인자로 분석되었다(p=0.029, 0.027). 치료 전 carcinoembryonic antigen 수치는 예측인자의 경향성을 보였다(p=0.068). 결론: 국소 진행된 직장암 환자의 생존율은 임상적 병기보다 수술 후 병리학적 소견에 더 의존되었다. 그러므로 수술전 항암화학방사선치료로 병기하향을 얻는 것이 의미가 있으며, 수술까지의 기간, 임상적 T 병기가 이러한 병기하향을 예측하는 인자였음을 알 수 있었다.

• 한국방사선학회논문지
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• 제18권3호
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• pp.249-256
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• 2024

식도암 방사선치료에서 폐렴 등의 방사선치료 부작용을 줄이고 정상장기를 보호하기 위하여 Full Arc와 Partial Arc를 이용한 동일평면 체적 조절 호형 방사선치료와 비동일평면 체적 조절 호형 방사선치료의 치료계획을 비교 분석하여 주변 정상 조직의 선량 차이를 평가하였다. 동시 항암 화학 방사선요법을 받은 환자 30명의 식도암 환자를 대상으로 fVMAT(2 Full Arc), pVMAT(4 Partial Arc), ncVMAT(2 Partial Arc + 2 Non-Coplanar Arc) 세 가지 치료계획의 PTV와 폐, 심장, 척수, Total MU를 비교하였다. 모든 치료계획이 PTV의 대한 조건을 충족하고 균일한 분포를 보였으며 심장의 평균선량은 fVMAT, pVMAT, ncVMAT 각각 5.8 Gy, 6.97 Gy, 7.60 Gy이었고 척수의 최대선량은 36.85 Gy, 42.51 Gy, 43.08 Gy로 fVMAT가 가장 낮은 값을 보였으며 통계적으로 유의했다. 그러나 폐의 평균선량은 각각 9.01 Gy, 7.71 Gy, 7.12 Gy이었고 V_5Gy는 52.22%, 38.61,%, 36.35%이며 V_10Gy은 37.79%, 27.33%, 24.15%로 ncVMAT가 가장 낮은 값을, fVMAT가 가장 높은 값을 보였고 통계적으로 유의했다. 따라서 ncVMAT는 식도암 방사선치료에서 폐의 선량 분포를 최소화하고 폐렴과 같은 부작용 발생률을 낮추는데 기여할 수 있을 것으로 판단된다. 하지만 Non-Coplanar Beam을 사용함으로써 셋업의 정확성과 치료 시간 증가 등을 고려하여 각 상황에 맞춰 적절한 치료계획을 적용함으로써 보다 나은 결과를 얻을 수 있을 것으로 사료된다.

• 한국임상수의학회지
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• 제25권4호
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• pp.295-302
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• 2008

Two dogs were referred to Veterinary Medical Center, Chungbuk National University with the clinical signs of vomiting, diarrhea, anorexia, and jaundice. Both dogs were diagnosed as extrahepatic biliary tract obstruction(EHBO) with concurrent pancreatitis based on dilated common bile duct and hyperechoic or mixed-echoic pancreas in abdominal ultrasonographic examination and serum biochemical abnormalities, such as high serum bilirubin, cholesterol, and increased cholestatic enzyme activity. Percutaneous ultrasound-guided cholecytocentesis(PUCC) was performed to examine bile and decompress the gall bladder. After PUCC with medical therapy, both dogs were steadily improved clinical signs of jaundice and anorexia. Also, cholestatic enzyme activity and serum bilirubin concentration decreased. Any complications that have been described in previous studies, such as peritonitis resulting from bile leakage and hemorrhage, were not identified. It is assumed that percutaneous ultrasound guided cholecystocentesis may be an useful diagnostic and therapeutic tool in canine gallbladder disease and can be used easily and safely to gain bile for diagnosis of bacterial cholecytitis.

• Radiation Oncology Journal
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• 제29권3호
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• pp.181-190
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• 2011

Purpose: Thoracic radiotherapy is a major treatment modality of stage III non-small cell lung cancer. The normal lung tissue is sensitive to radiation and radiation pneumonitis is the most important dose-limiting complication of thoracic radiation therapy. This study was performed to identify the clinical and dosimetric parameters related to the risk of radiation pneumonitis after definitive radiotherapy in stage III non-small cell cancer patients. Materials and Methods: The medical records were reviewed for 49 patients who completed definitive radiation therapy for locally advanced non-small cell lung cancer from August 2000 to February 2010. Radiation therapy was delivered with the daily dose of 1.8 Gy to 2.0 Gy and the total radiation dose ranged from 50.0 Gy to 70.2 Gy (median, 61.2 Gy). Elective nodal irradiation was delivered at a dose of 45.0 Gy to 50.0 Gy. Seven patients (14.3%) were treated with radiation therapy alone and forty two patients (85.7%) were treated with chemotherapy either sequentially or concurrently. Results: Twenty-five cases (51.0%) out of 49 cases experienced radiation pneumonitis. According to the radiation pneumonitis grade, 10 (20.4%) were grade 1, 9 (18.4%) were grade 2, 4 (8.2%) were grade 3, and 2 (4.1%) were grade 4. In the univariate analyses, no clinical factors including age, sex, performance status, smoking history, underlying lung disease, tumor location, total radiation dose and chemotherapy were associated with grade ${\geq}2$ radiation pneumonitis. In the subgroup analysis of the chemotherapy group, concurrent rather than sequential chemotherapy was significantly related to grade ${\geq}2$ radiation pneumonitis comparing sequential chemotherapy. In the univariate analysis with dosimetric factors, mean lung dose (MLD), $V_{20}$, $V_{30}$, $V_{40}$, MLDipsi, $V_{20}$ipsi, $V_{30}$ipsi, and $V_{40}$ipsi were associated with grade ${\geq}2$ radiation pneumonitis. In addition, multivariate analysis showed that MLD and V30 were independent predicting factors for grade ${\geq}2$ radiation pneumonitis. Conclusion: Concurrent chemotherapy, MLD and $V_{30}$ were statistically significant predictors of grade ${\geq}2$ radiation pneumonitis in patients with stage III non-small cell lung cancer undergoing definitive radiotherapy. The cutoff values for MLD and $V_{30}$ were 16 Gy and 18%, respectively.

• 한국임상약학회지
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• 제22권4호
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• pp.340-346
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• 2012

Background: Amphotericin B is a mainstay in the treatment of many systemic fungal infections due to its wide antifungal spectrum and low incidence of resistance. However, the use of amphotericin B is limited by its nephrotoxicity. Objectives: The objective of this study was to evaluate the incidence and risk factors of renal adverse drug reactions (ADRs) of conventional amphotericin B (Fungizone$^{(R)}$). In addition, we compared the changes of serum creatinine (SCr) between patients who remained conventional amphotericin B and patients who were switched to liposomal amphotericin B after occurrence of renal adverse reactions. Methods: Adult hospitalized patients who reported renal adverse reactions caused by conventional amphotericin B from January 2011 to July 2012 at pharmacovigilance center in Yonsei University Healthcare System included in this study. ADRs scored as 'doubtful' in Naranjo probability ADR scale were excluded. We retrospectively analyzed patients' basic clinical characteristics, concurrent diseases or nephrotoxic drugs in order to find variables that can correlate with occurrence of renal ADRs. Changes in SCr were compared between conventional amphotericin B group and liposomal amphotericin B group. Results: A total of 231 ADRs after administration of conventional amphotericin B in 75 patients were reported to pharmacovigilance center and assessed their severities as 'possible', 'probable', or 'definite'. Renal adverse reaction was the most common ADR with incidence rate of 42% (96 of 231 ADRs). Mean change in SCr from baseline was 0.26 mg/dL (change % 37.8) and statistically significant (p=0.000). Simple correlations analysis revealed that the number of concurrent diseases and number of nephrotoxic drugs were positively correlated with changes in SCr, but these results were not statistically significant. Among 43 patients who remained amphotericin B after occurrence of renal ADRs, 27 patients was administered conventional amphotericin B and 16 patients changed to liposomal amphotericin B. Mean change in SCr in amphotericin B group was 0.23 mg/dL (32.75%), whereas mean change in SCr in liposomal amphotericin B group were -0.28 mg/dL (19.38%) and difference between two groups was statistically significant (p=0.003). The numbers of patient with SCr elevation more than 30% were 9 (33.3%) in amphotericin B group and 2 (12.5%) in liposomal amphotericin B group (Odd Ratio=3.50, 95% Confidence Interval 0.65-18.85; p=0.130). Conclusion: An analysis of ADRs due to amphotericin B administration revealed significant mean changes in SCr from baseline. Switching to liposomal amphotericin B showed significant decrease in SCr compared with conventional amphotericin B.