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황호경,윤동섭,박준성,김재근,박창민,조신일 연세대학교의과대학 2012 Yonsei medical journal Vol.53 No.1
Purpose: Accurate indications and the extent of surgery for branch duct intraductal papillary mucinous neoplasm (IPMN) of the pancreas are still debatable. In particular,small tumor is located at the head portion of pancreas presents a dilemma. The purpose of this study is to compare the efficacy of enucleation (EN) with that of pancreaticoduodenectomy (PD) in patients with small (2 cm<size<3 cm) branch duct IPMN located at the head of pancreas or uncinate process. Materials and Methods: Among 155 patients who underwent pancreatic surgery due to pancreatic cystic tumors between January 2000 and December 2007 at Yonsei University Health System in Seoul, Korea, 14 patients with small (2 cm<size<3 cm) branch duct IPMN located at the head of pancreas or uncinate process were included in this study. Ten patients underwent PD, and four patients underwent EN. We compared short term surgical outcomes between the two groups. Correlation of the variables was analyzed using Mann-Whitney test and Fisher’s exact test (SPSS Window 12.0). p-values less than 0.05 were considered significant. Results:The average age was 62.21 years (±6.71 years) and consisted of 8 men and 6 women. The mean operation time and blood loss were significantly lower in EN group. There were no significant differences in other surgical morbidities. Conclusion:The result suggests that enucleation for small branch duct IPMN located at the head of pancreas or uncinate process is feasible and as safe as PD, despite a high rate of minor complications.
황호경,이성환,김형일,김세훈,최준정,강창무,이우정 연세대학교의과대학 2020 Yonsei medical journal Vol.61 No.4
Purpose: This study sought to investigate associations among Yonsei criteria (tumor confined to the pancreas, intact fascia layer between the distal pancreas and the left adrenal gland and kidney, and tumor located more than 1–2 cm from the celiac axis) and tumor infiltrating lymphocytes in pancreatic cancer. Materials and Methods: Patients who underwent curative distal pancreatectomy due to left-sided pancreatic cancer from January 2000 to December 2011 were enrolled. Follow-up was completed September 30, 2015. Results: Fifty patients were enrolled. Having ≥ two metastatic lymph nodes (LNs, p=0.002), intraoperative transfusion (p=0.011), low levels of tumor infiltrating CD8+ T-cells (p=0.001), and a high Foxp3+/CD8+ ratio (p=0.009) were independent risk factors for disease-free survival. Not satisfying the Yonsei criteria (p=0.021), having ≥ two metastatic LNs (p=0.032), low levels of tumor infiltrating CD8+ T-cells (p=0.040) and a high Foxp3+/CD8+ ratio (p=0.032) were associated with unfavorable overall survival. High levels of CA19-9 and not satisfying the Yonsei criteria were significantly associated with a high Foxp3+/CD8+ ratio [Exp(β)=3.558; 95% confidence inverval: 1.000–12.658; p=0.050]. Conclusion: Yonsei criteria may be clinically detectable biologic marker with which to predict immunologic status and survival in pancreatic cancer patients.
위암 환자에서 감시 림프절 및 고립 림프절 전이에 근거한 최소 림프절 절제에 대한 재고
황호경,형우진,최승호,노성훈,Hwang Ho Kyoung,Hyung Woo Jin,Choi Seung Ho,Noh Sung Hoon 대한위암학회 2004 대한위암학회지 Vol.4 No.4
목적: 조기 위암의 경우 림프절 정이의 빈도가 $2\∼20\%$로 낮고 따라서 수술 범위를 최소화하려는 경향이 있다. 게다가 조기 위암의 경우 림프절 절제술의 적절한 범위 선택에 여러 의견들이 있는 상황이다. 본 연구는 위암의 경우 감시 림프절 및 하나의 림프절 전이가 있는 증례를 분석하여 림프절 절제술의 최소 범위를 찾고자 하는데에 있다. 대상 및 방법: 연세대학교 의과대학 외과학교실에서 2000년부터 2002년까지 치료적 위절제술 및 D2 림프절 절제술을 시행받은 78명의 환자를 대상으로 감시 림프절을 평가 하였다. 개복술후 25 mg의 indocyanine green을 5 ml의 생리 식염수에 혼합하여 원발 종양부위의 장막하층에 주입하여 5분 이내에 염색된 모든 림프절을 표시하였다. 또한 연세대학교 의과대학 외과학 교실에서 1997년부터 2001년까지 치료적 위절제술을 시행받은 환자중 하나의 림프절 전이를 보인 141명을 분석하였다. 결과: 감시 림프절을 평가한 78명의 환자 중 69명($88.5\%$)에서 감시 림프절이 확인되었고, 그중 60명($87\%$)의 환자에서 감시 림프절은 위주위 제1군 림프절에서 발견 되었으나 9명($13\%$)의 경우에서는 제2군 림프절에서 감시 림프절이 확인 되었다. 하나의 림프절 전이를 보인 141명의 전이 림프절의 해부학적 위치를 분석한 결과 125명($88.6\%$)에서는 위주위 제1군 림프절로 전이가 있었고 16명($11.4\%$)에서는 제2군 림프절로 전이를 하였다. 결론: 따라서 D1 림프절 절제술을 시행할 경우 위암에 있어서 조기 전이를 놓칠 수 있으며, 만약 림프절 절제술이 필요한 경우에 있어서는 D2 림프절 절제술이 최소 수술 범위라 할수 있겠다. Purpose: The incidence of nodal metastases is as low as 2 to $20\%$ in early gastric cancer, so there is a trend to lessen the extent of surgery. In addition, the adequate range for a lymphadenectomy is controversial, especially in early gastric cancer. In this study, we tried to find the minimal range for a lymphadenectomy by analyzing sentinel-node and solitary lymph-node metastases in gastric cancer. Materials and Methods: The total of 78 patients who underwent a curative gastrectomy with a D2 lymphadenectomy for early gastric cancer between 2000 and 2002 in the Department of Surgery, Yonsei University, Seoul, Korea, were included for the evaluation of sentinel-node metastases.. After a laparotomy, 25 mg of indocyanine green was mixed in 5 ml of normal saline, and all the dye was injected into the subserosal layer around the primary tumor. All nodes stained within 5 minutes were marked. In addition, a total of 141 patients, who underwent a curative gastrectomy between 1997 and 2001 at the Department of Surgery, Yonsei University, Seoul, Korea, were analyzed for solitary lymph- node metastases. Results: Among the 78 patients, sentinel nodes were detected in 69 patients ($88.5\%$). The sentinel nodes in 60 cases ($87.0\%$) were located in the perigastric area. However, 9 cases ($13.0\%$) had sentinel nodes in the N2 group. In the 141 cases that had a solitary metastatic node, 125 cases ($88.6\%$) demonstrated the metastatic lymph node in the perigastric area, and 16 cases ($11.4\%$) showed that the metastatic node in the N2 group. Conclusion: Taken together, removal of a perigastric lymph node could miss early metastases in gastric cancer, so a D1 lymphadenectomy should not be the minimal range of dissection if a lymphadenectomy is necessary. (J Korean Gastric Cancer Assoc 2004;4:272-276)
황호경,최성훈,강창무,이우정 연세대학교의과대학 2013 Yonsei medical journal Vol.54 No.6
Purpose: Single-fulcrum laparoscopic cholecystectomy (SFLC) is a variant type of single incision and multi-port technique that does not use specialized one-port devices or articulating instruments. We retrospectively compared perioperative outcomes of SFLC with those of conventional laparoscopic cholecystectomy (CLC). Materials and Methods: Between March 2009 and December 2010, SFLC was performed in 130 patients. Among them, 105 patients with uncomplicated gallbladder disease (no inflammation or no clinical symptoms) and another 105 patients who underwent CLC were selected for this study. Results: There was no open conversion. In comparison with CLC, SFLC was performed more often in young (46.4±12.2 years vs. 52.5±13.6 years, p=0.001) female patients (80/25 vs. 62/43, p=0.008). The total operation time was longer in SFLC (56.7±14.1 min vs. 47.5±17.1 min, p<0.001), but pain scores immediately after operation and at discharge time were lower for SFLC than for CLC (3.1±1.3 vs. 4.0±1.9, p<0.001, 2.0±0.9 vs. 2.4±0.8, p=0.002). Total cost was lower for SFLC than for CLC (US $ 1801±289.9 vs. US $ 2003±617.4, p=0.004). There were no differences in hospital stay or complication rates. Conclusion: SFLC showed greater technical feasibility and cost benefits in treating uncomplicated benign gallbladder disease than CLC.