• Journal of Gastric Cancer
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• 제4권4호
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• pp.213-218
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• 2004

목적: 조기 위암 중 점막하층 침윤과 림프절 전이가 많은 표층 팽창형 조기위암(5cm 이상)은 다른 형태의 조기위암과 다른 임상병리학적 양상을 보인다. 이에 저자들은 조기 위암 중 표층 팽창형 조기위암에 대해 임상 병리학적 특성과 수술 방법 및 예후에 영향을 주는 요소들을 알아보고자 하였다. 대상 및 방법: 1995년부터 2002년까지 단국대학교 외과학교실과 울산대학교 서울 중앙병원 외과학교실에서 위암으로 수술을 시행한 환자들 중 조직 병리 검사상 조기 위암으로 보고된 환자를 대상으로 하였다. 1,875예의 조기위암 환자 중 표층 팽창형 조기위암 300예($16.0\%$), 소형 조기위암 739예($39.4\%$)를 대상으로 임상병리조직학적 소견, 수술방법, 생존율, 재발 양상 및 재발률 등을 후향적 방법으로 비교 분석하였다. 결과: 양 군에서 육안적 소견상 IIc형이 가장 많았으며, 융기형보다 침윤형이 더 많았다. 양 군에서 수술방법의 차이는 없었다. 점막하층 침윤정도는 표층팽창형군이 185예($61.7\%$)로 소형군 294예($39.8\%$)보다 많았으며 두 군간에 통계학적으로 유의한 차이를 보였다(P=0.005). 림프관 침범은 표층팽창형군에서 39예($13.0\%$). 소형군에서 34예($4.6\%$)에서 관찰되었고 통계학적으로 유의한 차이를 보였으며(P=0.009) 종양의 재발은 표층팽창형군 300예 중 11예($3.6\%$), 소형군 739예 중 10예($1.4\%$)로 두 군 간에 통계학 적으로 유의한 차이는 없었다(P=0.214). 전체 5년 생존율은 표층팽창형군 $84.8\%$, 소형군 $93.0\%$로 통계학적으로 유의한 차이는 없었고(P=0.052), 5년 무병 생존율은 표층팽창형군 $87.5\%$, 소형군은 $94.7\%$로 통계학적으로 유의한 차이는 없었다(P=0.053). 결론: 표층팽창형 조기위암은 점막하층 침범, 림프관 침범, 림프절 전이는 빈도가 유의하게 많았다. 따라서 축소 수술 등은 적응이 되지 않으며 충분한 절제연과 광범위의 림프절 곽청술을 시행하는 것이 적절하다고 생각한다.

• Clinical Endoscopy
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• 제55권1호
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• pp.15-21
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• 2022

Endoscopic submucosal dissection (ESD) is the standard treatment method for esophageal, gastric, and colorectal cancers. However, it has not been standardized for duodenal lesions because of its high complication rates. Recently, minimally invasive and simple methods such as cold snare polypectomy and underwater endoscopic mucosal resection have been utilized more for superficial nonampullary duodenal epithelial tumors (SNADETs). Although the rate of complications associated with duodenal ESD has been gradually decreasing because of technical advancements, performing ESD for all SNADETs is unnecessary. As such, the appropriate treatment plan for SNADETs should be chosen according to the lesion type, patient condition, and endoscopist's skill.

• Asian Pacific Journal of Cancer Prevention
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• 제13권2호
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• pp.689-692
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• 2012

Objective: To investigate correlations between adenosine triphosphate chemotherapy response assay (ATP-CRA) and clinical outcomes after ATP-CRA-based chemotherapy for drug selection in patients receiving intravesical chemotherapy to prevent recurrence of superficial bladder cancer after surgery. Methods: The chemosensitivities of 12 anticancer drugs were evaluated, including 5-Fu ADM, and EPI, using ATP-CRA and primary tumor cell culture in 54 patients. In addition, a further 58 patients were treated according to clinical experience. Differences in post-chemotherapeutical effects between drug sensitivity assay and experience groups were compared. Results: The evaluable rate of the test was 96.3%, the clinical effective rate was 80.8%, the sensitivity rate was 97.6% (41/42), the specificity was 20%, the total predicting accuracy was 74.3%, the positive predictive value was 83.7% (41/49), the negative predictive value was 66.7% (2/3); in the drug sensitivity test group, the clinical effective rate was 80.8%, the experience group response rate was 63.8%, with a significant difference in clinical effects between the ATP-based sensitivity and experience groups (${\chi}^2$=7.0153, P<0.01). Conclusion: ATP-CRA is a stable, accurate and potentially practical chemosensitivity test providing a predictor of chemotherapeutic response in patients with superficial bladder cancer.

• Clinical Endoscopy
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• 제56권5호
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• pp.613-622
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• 2023

Background/Aims: Endoscopic submucosal dissection (ESD) is currently considered the first-line treatment for the eradication of superficial neoplasms of the esophagus in Eastern countries. However, in the West, particularly in Latin America, the experience with esophageal ESD is still limited because of the high technical complexity required for its execution. This study aimed to present the results of the clinical application of ESD to manage superficial esophageal neoplasms in a Latin American center in over 100 consecutive cases. Methods: This retrospective study included consecutive patients who underwent endoscopic ESD for superficial esophageal neoplasms between 2009 and 2022. The following clinical outcomes were assessed: en bloc, complete, and curative resection rates, local recurrence, adverse events, and procedure-related mortality. Results: Esophageal ESD was performed mainly for squamous cell carcinoma (66.6%), high-grade intraepithelial neoplasia (17.1%), and adenocarcinoma (11.4%). En bloc and complete resection rates were 96.2% and 81.0%, respectively. The curative resection rate was 64.8%. Adverse events occurred in six cases (5.7%). Endoscopic follow-up was performed for an average period of 29.7 months. Conclusions: ESD performed by trained operators is feasible, safe, and clinically effective for managing superficial neoplastic lesions of the esophagus in Latin America.

• 대한기관식도과학회지
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• 제17권1호
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• pp.19-22
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• 2011

내시경 초음파검사는 식도벽의 조직학적 층구조를 가장 유사하게 반영하는 검사법으로 식도 병변의 진단과 치료전략에 필수검사이다. 표재성 식도암에서 고주파 미세탐촉자를 이용한 EUS는 내시경 절제 같은 국소치료가 가능한 환자들을 선별하는 데 중요한 역할을 한다.

• 대한암한의학회지
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• 제26권1호
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• pp.29-37
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• 2021

Objectives: The purpose of this study is to examine whether heart rate variability (HRV) and pulse wave of cancer patients can be used as indicators of their health status and prognosis. Methods: We retrospectively compared HRV, pulse wave and body mass index (BMI) of cancer patients and healthy individuals who visited W hospital from November of 2020 to October of 2021. Results: As a result of comparing HRV and pulse wave parameters between cancer patients and healthy subjects, among HRV indices, mean heart rate (MHR), standard deviation of normal to normal (SDNN) and total power (TP), very low frequency (VLF) showed significant differences between two groups. Cancer patients' pulse wave parameters showed more rapid and superficial than that of healthy subjects. Also, cancer patients weighed less and had lower BMI. Conclusion: For increased MHR, decreased SDNN, rapid and superficial pulse wave can be indicators of poor prognosis of cancer patients, keep monitoring HRV and pulse wave can help to manage patients efficiently.

• 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.

• Radiation Oncology Journal
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• 제35권3호
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• pp.241-248
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• 2017

Purpose: To evaluate the efficacy and safety of extended-field radiation therapy for patients with thoracic superficial esophageal cancer (SEC). Materials and Methods: From May 2007 to October 2016, a total of 24 patients with thoracic SEC (T1a and T1b) who underwent definitive radiotherapy and were analyzed retrospectively. The median total radiotherapy dose was 64 Gy (range, 54 to 66 Gy) in conventional fractionation. All 24 patients received radiotherapy to whole thoracic esophagus and 23 patients received elective nodal irradiation. The supraclavicular lymph nodes, the celiac lymph nodes, and both of those nodal areas were included in 11, 3, and 9 patients, respectively. Results: The median follow-up duration was 28.7 months (range 7.9 to 108.0 months). The 3-year overall survival, local control, and progression-free survival rates were 95.2%, 89.7%, and 78.7%, respectively. There were 5 patients (20.8%) with progression of disease, 2 local failures (8.3%) and 3 (12.5%) regional failures. Three patients also experienced distant metastasis and had died of disease progression. There were no treatment-related toxicities of grade 3 or higher. Conclusion: Definitive extended-field radiotherapy for thoracic SEC showed durable disease control rates in medically inoperable and endoscopically unfit patients. Even extended-field radiotherapy with elective nodal irradiation was safe without grade 3 or 4 toxicities.

• Archives of Plastic Surgery
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• 제51권2호
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• pp.150-155
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• 2024

The superficial circumflex iliac artery perforator (SCIP) flap is a versatile flap that has been described for various applications, mostly for lower extremity coverage and head and neck reconstructions. However, there are few publications reporting its use for breast reconstruction, mainly because of its low volume availability. In this article, we present the case of a patient who successfully underwent a partial breast and immediate nipple-areola complex (NAC) reconstruction with an SCIP flap. She had been previously reconstructed with an implant after a nipple-sparing mastectomy, but the NAC turned out to be involved with cancer needing further resection. Our goal with this article, is to introduce a novel concept for addressing partial breast and NAC reconstruction and mostly, to illustrate the importance of an adaptable surgical plan based on every individual case emphasizing the versality of microsurgery for breast cancer reconstruction.

• Nuclear Engineering and Technology
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• 제50권6호
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• pp.937-943
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• 2018

Background: This work presents the performance of a novel electronic brachytherapy (EBT) device and radiotherapy (RT) experiments on both skin cancer cells and animals using the device. Methods and materials: The performance of the EBT device was evaluated by measuring and analyzing the dosimetric characteristics of X-rays generated from the device. The apoptosis of skin cancer cells was analyzed using B16F10 melanoma cancer cells. Animal experiments were performed using C57BL/6 mice. Results: The X-ray characteristics of the EBT device satisfied the accepted tolerance level for RT. The results of the RT experiments on the skin cancer cells show that a significant apoptosis induction occurred after irradiation with 50 kVp X-rays generated from the EBT device. Furthermore, the results of the animal RT experiments demonstrate that the superficial X-rays significantly delay the tumor growth and that the tumor growth delay induced by irradiation with low-energy X-rays was almost the same as that induced by irradiation with a high-energy electron beam. Conclusions: The developed new EBT device has almost the same therapeutic effect on the skin cancer with a conventional linear accelerator. Consequently, the EBT device can be practically used for human skin cancer treatment in the near future.