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Hayashi Y, Misawa K, Mori K. Database-driven patient-specific registration error compensation method for image-guided laparoscopic surgery. Int J Comput Assist Radiol Surg 2023; 18:63-69. [PMID: 36534226 DOI: 10.1007/s11548-022-02804-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 11/21/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE A surgical navigation system helps surgeons understand anatomical structures in the operative field during surgery. Patient-to-image registration, which aligns coordinate systems between the CT volume and a positional tracker, is vital for accurate surgical navigation. Although a point-based rigid registration method using fiducials on the body surface is often utilized for laparoscopic surgery navigation, precise registration is difficult due to such factors as soft tissue deformation. We propose a method that compensates a transformation matrix computed using fiducials on the body surface based on the analysis of positional information in the database. METHODS We built our database by measuring the positional information of the fiducials and the guidance targets in both the CT volume and positional tracker coordinate systems through previous surgeries. We computed two transformation matrices: using only the fiducials and using only the guidance targets in all the data in the database. We calculated the differences between the two transformation matrices in each piece of data. The compensation transformation matrix was computed by averaging these difference matrices. In this step, we selected the data from the database based on the similarity of the fiducials and the configuration of the guidance targets. RESULTS We evaluated our proposed method using 20 pieces of data acquired during laparoscopic gastrectomy for gastric cancer. The locations of blood vessels were used as guidance targets for computing target registration error. The mean target registration errors significantly decreased from 33.0 to 17.1 mm before and after the compensation. CONCLUSION This paper described a registration error compensation method using a database for image-guided laparoscopic surgery. Since our proposed method reduced registration error without additional intraoperative measurements during surgery, it increases the accuracy of surgical navigation for laparoscopic surgery.
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Affiliation(s)
- Yuichiro Hayashi
- Graduate School of Informatics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
| | - Kazunari Misawa
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681, Japan
| | - Kensaku Mori
- Graduate School of Informatics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.,Research Center for Medical Bigdata, National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo, 101-8430, Japan
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2
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Laparoscopic gastrectomy for gastric cancer: has the time come for considered it a standard procedure? Surg Oncol 2022; 40:101699. [PMID: 34995972 DOI: 10.1016/j.suronc.2021.101699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/29/2021] [Accepted: 12/28/2021] [Indexed: 12/11/2022]
Abstract
Radical gastrectomy with an adequate lymphadenectomy is the main procedure which makes it possible to cure patients with resectable gastric cancer. A number of randomized controlled trials and meta-analysis provide phase III evidence that laparoscopic gastrectomy is technically safe and that it yields better short-term outcomes than conventional open gastrectomy for early-stage gastric cancer. At present, laparoscopic gastrectomy is considered a standard procedure for early-stage gastric cancer, especially in Asian countries. On the other hand, the use of minimally invasive techniques is still controversial for the treatment of more advanced tumours, principally due to existing concerns about its oncological adequacy and capacity to carry out an adequately extended lymphadenectomy. Additional high-quality studies comparing laparoscopic gastrectomy versus open gastrectomy for gastric cancer have been recently published, in particular concerning the latest results obtained by laparoscopic approach to advanced gastric cancer. It seems very useful to update the review of literature in light of these new evidences for this subject and draw some considerations.
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Yüksel C, Erşen O, Mercan Ü, Başçeken Sİ, Bakırarar B, Bayar S, Ünal AE, Demirci S. Long-Term Results and Current Problems in Laparoscopic Gastrectomy: Single-Center Experience. J Laparoendosc Adv Surg Tech A 2020; 30:1204-1214. [PMID: 32348706 PMCID: PMC7699011 DOI: 10.1089/lap.2020.0180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: The study aims to evaluate the long-term results of patients who underwent laparoscopic gastrectomy for gastric cancer in Ankara University Medical Faculty, Surgical Oncology Clinic, within 5 years. Materials and Methods: We retrospectively reviewed the data of patients who underwent laparoscopic gastrectomy for gastric cancer at the Surgical Oncology Clinic of Ankara University Medical Faculty between January 2014 and September 2019. One hundred forty-six patients were included in the study. Results: Fifty-one (34.9%) of the patients were female; 95 (65.1%) were male. The mean ± standard deviation and median (minimum-maximum) values of the patients were 60.92 ± 14.13 and 64.00 (22.00-93.00), respectively (Table 1). Eighty-seven (59.6%) cases were located in the antrum, 29 (19.9%) were in the cardia region, and 30 (20.5%) were in the corpus region. Overall, 106 (72.6%) of 146 patients were alive, while 40 (27.4%) were ex. The mean survival was 21.8 months (0-69). Postoperative mortality was seen in 9 patients (6.2%) and our disease-free survival rate was 70.5%. Recurrence occurred in 14 (9.6%) of all patients. [Table: see text] Conclusion: In conclusion, although laparoscopic gastrectomy is a reliable and feasible method for gastric cancer, the standardization of laparoscopic surgery is required in clinics.
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Affiliation(s)
- Cemil Yüksel
- General Surgery Department, Surgical Oncology Clinic, Ankara University Medicine Faculty, Ankara, Turkey
| | - Ogün Erşen
- General Surgery Department, Surgical Oncology Clinic, Ankara University Medicine Faculty, Ankara, Turkey
| | - Ümit Mercan
- General Surgery Department, Surgical Oncology Clinic, Ankara University Medicine Faculty, Ankara, Turkey
| | | | - Batuhan Bakırarar
- Biostatistic Department, Ankara University Medicine Faculty, Ankara, Turkey
| | - Sancar Bayar
- General Surgery Department, Surgical Oncology Clinic, Ankara University Medicine Faculty, Ankara, Turkey
| | - Ali Ekrem Ünal
- General Surgery Department, Surgical Oncology Clinic, Ankara University Medicine Faculty, Ankara, Turkey
| | - Salim Demirci
- General Surgery Department, Surgical Oncology Clinic, Ankara University Medicine Faculty, Ankara, Turkey
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Zhu Z, Li L, Xu J, Ye W, Zeng J, Chen B, Huang Z. Laparoscopic versus open approach in gastrectomy for advanced gastric cancer: a systematic review. World J Surg Oncol 2020; 18:126. [PMID: 32534587 PMCID: PMC7293787 DOI: 10.1186/s12957-020-01888-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 05/19/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Additional studies comparing laparoscopic gastrectomy (LG) versus open gastrectomy (OG) for advanced gastric cancer (AGC) have been published, and it is necessary to update the systematic review of this subject. OBJECTIVE We conducted the meta-analysis to find some proof for the use of LG in AGC and evaluate whether LG is an alternative treatment for AGC. METHOD Randomized controlled trials (RCT) and high-quality retrospective studies (NRCT) compared LG and OG for AGC, which were published in English between January 2010 and May 2019, were search in PubMed, Embase, and Web of Knowledge by three authors independently and thoroughly. Some primary endpoints were compared between the two groups, including intraoperative time, intraoperative blood loss, harvested lymph nodes, first flatus, first oral intake, first out of bed, post-operative hospital stay, postoperative morbidity and mortality, rate of disease recurrence, and 5-year over survival (5-y OS). Besides, considering for this 10-year dramatical surgical material development between 2010 and 2019, we furtherly make the same analysis based on recent studies published between 2016 and 2019. RESULT Thirty-six studies were enrolled in this systematic review and meta-analysis, including 5714 cases in LAG and 6094 cases in OG. LG showed longer intraoperative time, less intraoperative blood loss, and quicker recovery after operations. The number of harvested lymph nodes, hospital mortality, and tumor recurrence were similar. Postoperative morbidity and 5-y OS favored LG. Furthermore, the systemic analysis of recent studies published between 2016 and 2019 revealed similar result. CONCLUSION A positive trend was indicated towards LG. LG can be performed as an alternative to OG for AGC.
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Affiliation(s)
- Zhipeng Zhu
- Department of Gastrointestinal Surgery, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian, People's Republic of China
| | - Lulu Li
- Department of Gastrointestinal Surgery, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian, People's Republic of China
| | - Jiuhua Xu
- Department of Clinical Medicine, Fujian Medical University, Fuzhou, 350004, Fujian, People's Republic of China
| | - Weipeng Ye
- Department of Clinical Medicine, Fujian Medical University, Fuzhou, 350004, Fujian, People's Republic of China
| | - Junjie Zeng
- Department of Gastrointestinal Surgery, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian, People's Republic of China
| | - Borong Chen
- Department of Gastrointestinal Surgery, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian, People's Republic of China
| | - Zhengjie Huang
- Department of Gastrointestinal Surgery, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, 55 Zhen Hai Road, Si Ming District, Xiamen, 361003, Fujian, People's Republic of China. .,Department of Clinical Medicine, Fujian Medical University, Fuzhou, 350004, Fujian, People's Republic of China.
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Tanaka C, Fujiwara M, Kanda M, Murotani K, Iwata N, Hayashi M, Kobayashi D, Yamada S, Kodera Y. Optical trocar access for initial trocar placement in laparoscopic gastrointestinal surgery: A propensity score-matching analysis. Asian J Endosc Surg 2019; 12:37-42. [PMID: 29673123 DOI: 10.1111/ases.12484] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/07/2018] [Accepted: 02/22/2018] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Optical trocar access is a technique to place the initial trocar in laparoscopic surgery. With optical trocar access, each tissue layer can be visualized before insertion, which can help prevent organ injury, and air leaks at the trocar site can be minimized even in obese patients. The aim of this study was to compare the time needed for trocar insertion using optical trocar access and an open method in patients who underwent laparoscopic gastrointestinal surgery. METHODS We reviewed our prospectively collected database and identified 384 patients who underwent laparoscopic gastrointestinal surgery involving initial trocar insertion near the umbilicus by either the optical trocar access or the open method. Before the two methods were compared, propensity score matching was used to adjust for essential variables between the optical trocar access and open groups. RESULTS Patients categorized in the optical trocar access and open groups were matched one-to-one by propensity score matching, and 137 pairs of patients were generated. The time needed for trocar insertion was significantly shorter in the optical trocar access group than in the open group (36.6 vs 209.8 s, P < 0.01). The multivariable analysis identified an inexperienced surgeon as the only independent risk factor for prolonged time for initial trocar insertion using the optical trocar access. CONCLUSIONS This study indicated that optical trocar access may be recommended for inserting the initial trocar in laparoscopic gastrointestinal surgery.
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Affiliation(s)
- Chie Tanaka
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Michitaka Fujiwara
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mitsuro Kanda
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenta Murotani
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoki Iwata
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masamichi Hayashi
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Daisuke Kobayashi
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Suguru Yamada
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuhiro Kodera
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Nishizawa N, Hosoda K, Moriya H, Mieno H, Ema A, Ushiku H, Ishii S, Tanaka T, Washio M, Yokoi K, Harada H, Watanabe M, Yamashita K. Patients' preoperative background causes gastric stasis after laparoscopy-assisted pylorus-preserving gastrectomy. Asian J Endosc Surg 2018; 11:337-345. [PMID: 29573227 DOI: 10.1111/ases.12477] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 12/28/2017] [Accepted: 01/23/2018] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Despite technical improvements in laparoscopic gastrectomy, gastric stasis is still a serious problem in laparoscopy-assisted pylorus-preserving gastrectomy (LAPPG). The aim of this study was to investigate the factors that might cause gastric stasis in LAPPG. METHODS From April 2004 through November 2012, 85 patients with cT1N0 middle-third gastric cancer who underwent LAPPG at Kitasato University Hospital; these patients were included in the present study. Infra-pyloric vein (IPV)-preserving LAPPG was performed in 41 patients. We compared the rate of gastric stasis in the IPV-preserving and the IPV-non-preserving groups, and analyzed the clinicopathological factors that might have caused gastric stasis. RESULTS We did not demonstrate that preservation of the IPV could prevent gastric stasis in the early and late postoperative periods. Symptoms of gastric stasis were most frequently recognized 1 year after surgery. A significantly higher proportion of preoperative ASA class 2 patients had gastric stasis than did not (80.0% [12/15] vs 48.6% [34/70], P=0.02). Among the ASA class 2 patients, a significantly greater proportion of those with depressed activities of daily living than those with normal activities of daily living had gastric stasis (66.7% [4/6] vs 20.0% [8/40], P = 0.015). CONCLUSIONS The clinical significance of the IPV preservation in LAPPG could not be demonstrated. LAPPG should be performed for ASA class 1 patients or those with maintained preoperative activities of daily living.
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Affiliation(s)
- Nobuyuki Nishizawa
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Kei Hosoda
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hiromitsu Moriya
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hiroaki Mieno
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Akira Ema
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hideki Ushiku
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Satoru Ishii
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Toshimichi Tanaka
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Marie Washio
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Keigo Yokoi
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hiroki Harada
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Masahiko Watanabe
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - Keishi Yamashita
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan.,Division of Advanced Surgical Oncology, Research and Development Center for New Medical Frontiers, Kitasato University School of Medicine, Sagamihara, Japan
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7
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Zheng J, Xie SH, Santoni G, Lagergren J. Population-based cohort study of diabetes mellitus and mortality in gastric adenocarcinoma. Br J Surg 2018; 105:1799-1806. [DOI: 10.1002/bjs.10930] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/30/2018] [Accepted: 06/05/2018] [Indexed: 12/16/2022]
Abstract
Abstract
Background
Gastric adenocarcinoma is a common cause of cancer death globally. It remains unclear whether coexisting diabetes mellitus influences survival in patients with this tumour. A cohort study was conducted to determine whether coexisting diabetes increases mortality in gastric adenocarcinoma.
Methods
This nationwide population-based cohort study included all patients diagnosed with gastric adenocarcinoma in Sweden between 1990 and 2014. Cox proportional hazards regression and competing risks regression were used to assess the influence of coexisting diabetes on disease-specific mortality in gastric adenocarcinoma with adjustment for sex, age, calendar year and co-morbidity (Charlson Co-morbidity Index score excluding diabetes).
Results
Among 23 591 patients with gastric adenocarcinoma, 2806 (11·9 per cent) had coexisting diabetes. Overall, patients with diabetes had a moderately increased risk of disease-specific mortality after diagnosis of gastric adenocarcinoma compared with those without diabetes, as shown by both Cox regression (hazard ratio (HR) 1·17, 95 per cent c.i. 1·11 to 1·22) and competing risks regression (sub-HR 1·08, 1·02 to 1·13). The HRs for disease-specific mortality were notably increased in diabetic patients without other co-morbidity (HR 1·23, 1·15 to 1·32) and in diabetic patients who had surgery with curative intent (HR 1·27, 1·16 to 1·38).
Conclusion
These findings indicate a worse prognosis in patients with gastric adenocarcinoma and coexisting diabetes compared with those without diabetes.
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Affiliation(s)
- J Zheng
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - S-H Xie
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - G Santoni
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - J Lagergren
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
- School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
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A risk prediction system of postoperative hemorrhage following laparoscopy-assisted radical gastrectomy with D2 lymphadenectomy for primary gastric cancer. Oncotarget 2017; 8:81511-81519. [PMID: 29113410 PMCID: PMC5655305 DOI: 10.18632/oncotarget.20828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 08/27/2017] [Indexed: 01/04/2023] Open
Abstract
Objectives To investigate risk factors of postoperative hemorrhage (PH) following laparoscopy-assisted radical gastrectomy (LARG) with D2 lymphadenectomy for primary gastric cancer (PGC) and to use those risk factors to develop a scoring system for risk assessment. Materials and Methods A total of 1789 PGC patients were enrolled in our study. We analyzed the risk factors of PH and constructed a scoring system using 75% of the cases as the experimental group and 25% of the cases as a verification group to demonstrate the effectiveness. Results Among these 1789 patients, 46 (2.6%) developed PH. Univariate and multivariate analysis in the experimental group indicated that having more than 41 lymph node excisions, combined organ resection, stage III tumor and postoperative digestive fistula were independent risk factors of PH. According to the independent risk factors, we constructed a scoring system to separate patients into low-risk (0–2 points) and high-risk (≥ 3 points) groups. The area under the ROC curve for this scoring system was 0.748. In the verification group, the risk of PH predicted by the scoring system was not significantly different from the actual incidence observed. Conclusions This scoring system could simply and effectively predict the occurrence of PH following LARG with D2 lymphadenectomy for PGC. The predictive system will help surgeons evaluate risk and select risk-adapted interventions to improve surgical safety.
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Sydiuk A. Current practice for gastric cancer treatment in Ukraine. Transl Gastroenterol Hepatol 2017; 2:47. [PMID: 28616603 PMCID: PMC5460090 DOI: 10.21037/tgh.2017.04.07] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 04/07/2017] [Indexed: 12/15/2022] Open
Abstract
Ukraine registers more than 8,000 new cases of gastric cancer (GC) annually. The disease is usually diagnosed at stage III-IV (65% of cases) and 62.2% of patients die within 1 year. About 70% of patients with GC need chemotherapy, and for most of them, this is the only way to increase their life expectancy. An unsolved problem of nationwide importance is achieving the early diagnosis of GC, which predetermines the treatment outcome. The 5-year survival rate for GC patients in Ukraine is only 13%, while early diagnosed GC is almost totally curable using surgery. Another important task is the development of national diagnosis and treatment standards, which will be based on national breakthroughs and will meet modern international requirements.
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Affiliation(s)
- Andrii Sydiuk
- State Institute (Shalimov's National Institute of Surgery and Transplantation), National Academy of Medical Sciences of Ukraine, Kyiv, Ukraine
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Tu RH, Li P, Xie JW, Wang JB, Lin JX, Lu J, Chen QY, Cao LL, Lin M, Huang CM, Zheng CH. Development of lymph node dissection in laparoscopic gastrectomy: safety and technical tips. Transl Gastroenterol Hepatol 2017; 2:23. [PMID: 28447058 DOI: 10.21037/tgh.2017.03.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/07/2017] [Indexed: 12/23/2022] Open
Abstract
With the accumulation of experience in laparoscopic radical gastrectomy and the progress in surgical instruments, the laparoscopic technique has been widely applied in gastric cancer. Combining previous reports with data from our center, we believe that laparoscopic surgery for gastric cancer is safe and feasible, and its surgery-related complications have an incidence that is not higher, and perhaps even lower, than that of traditional laparotomy. However, the stomach has many anatomical levels and an abundant blood supply; additionally, laparoscopic surgery is relatively difficult. Therefore, understanding the normal gastric peripheral vascular anatomy and variation, selecting an appropriate surgical approach, applying programmed surgical procedures and team cooperation, and paying attention to the details in lymph node dissection are keys to a successful laparoscopic lymph node dissection in gastric cancer.
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Affiliation(s)
- Ru-Hong Tu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Mi Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
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11
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Optimal port placement planning method for laparoscopic gastrectomy. Int J Comput Assist Radiol Surg 2017; 12:1677-1684. [DOI: 10.1007/s11548-017-1548-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/22/2017] [Indexed: 01/22/2023]
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12
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Abdelaziem S, El-Bakary TA, Allah HSA. Short Term Outcomes of Laparoscopic versus Open Distal Gastrectomy with D2 Lymph Nodes Dissection for Gastric Cancer: A Prospective Study. SURGICAL SCIENCE 2017; 08:334-347. [DOI: 10.4236/ss.2017.88037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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13
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Kodera Y. The current state of stomach cancer surgery in the world. Jpn J Clin Oncol 2016; 46:1062-1071. [DOI: 10.1093/jjco/hyw117] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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14
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Hayashi Y, Misawa K, Hawkes DJ, Mori K. Progressive internal landmark registration for surgical navigation in laparoscopic gastrectomy for gastric cancer. Int J Comput Assist Radiol Surg 2016; 11:837-45. [PMID: 26811079 DOI: 10.1007/s11548-015-1346-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 12/24/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE A surgical navigation system supports the comprehension of anatomical information during surgery. Patient-to-image registration is the alignment process between CT volume and patient coordinate systems. Achieving accurate registration in the surgical navigation of laparoscopic surgery is very challenging due to soft tissue deformation. This paper presents a new patient-to-image registration method based on internal anatomical landmarks for improving registration accuracy in the surgical navigation of laparoscopic gastrectomy for gastric cancer. METHODS Our proposed registration method progressively utilizes internal anatomical landmarks. In laparoscopic gastrectomy for gastric cancer, the surgeon cuts the blood vessels around the stomach. The positions of the cut vessels are sequentially used as fiducials for registration during surgery. The proposed method uses a weighted point-based registration method for computing the transformation matrix using the fiducials both on the body surface and on the blood vessels. When a blood vessel is cut during surgery, the proposed progressive registration method measures the cut vessel's position and computes a transformation matrix by adding the cut vessel as a fiducial. RESULTS We applied our proposed progressive registration method using the positional information of the blood vessels acquired during laparoscopic gastrectomy in 20 cases. We evaluated it using target registration error in four blood vessels. The average target registration error in the four blood vessels was 12.6 mm and ranged from 2.1 to 32.9 mm. CONCLUSION Since the proposed progressive registration can reduce registration error, our proposed method is very useful for the surgical navigation of laparoscopic gastrectomy. Our proposed progressive registration method might increase the accuracy of surgical navigation in laparoscopic gastrectomy.
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Affiliation(s)
- Yuichiro Hayashi
- Information & Communications, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
| | - Kazunari Misawa
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681, Japan
| | - David J Hawkes
- Information Technology Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
- Centre for Medical Image Computing, University College London, Gower Street, London, WC1E 6BT, UK
| | - Kensaku Mori
- Information & Communications, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
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15
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Totally laparoscopic versus laparoscopy-assisted Billroth-I anastomosis for gastric cancer: a case-control and case-matched study. Surg Endosc 2016; 30:5245-5254. [PMID: 27008576 PMCID: PMC5112298 DOI: 10.1007/s00464-016-4872-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 03/12/2016] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To evaluate the safety, feasibility and clinical results of the modified delta-shaped gastroduodenostomy (MDSG) in totally laparoscopic distal gastrectomy (TLDG) for gastric cancer (GC). METHODS We performed a case-control and case-matched study enrolling 642 patients with GC undergoing laparoscopic distal gastrectomy with Billroth-I anastomosis from January 2011 to December 2014. TLDG with MDSG was performed in 158 patients (Group TL), and laparoscopy-assisted distal gastrectomy with circular anastomosis was performed in 484 patients (Group LA). One-to-one propensity score matching (PSM) was performed to compare the clinicopathological characteristics between the two groups. RESULTS Patients with smaller tumors or stage I cancer were more likely to receive TLDG (P < 0.05). In the propensity-matched analysis of 143 pairs, there were no differences in demographic and pathologic characteristics between groups (all P < 0.05). All patients successfully underwent laparoscopic radical distal gastrectomy. Before PSM, Group TL had more dissected lymph nodes (LNs), a longer time to first fluid diet and a longer postoperative length of stay than Group LA (all P < 0.05). After PSM, except for the fact that more dissected LNs were obtained in Group LA (P < 0.05), no difference was found in the intraoperative and postoperative outcomes between the groups (all P > 0.05). The postoperative complications were similar in both groups (all P > 0.05). Stratification analysis performed after PSM showed that in early GC, no difference was observed in intraoperative and postoperative outcomes between the groups (all P > 0.05). However, in locally advanced GC, Group TL had more dissected LNs and a higher rate of postoperative complications (both P < 0.05). Univariate analysis carried out in locally advanced cases after PSM showed that the body mass index (BMI), the method of digestive tract reconstruction and Charlson's score were significant factors that affected postoperative morbidity (all P < 0.05). Multivariate analysis indicated that BMI was an independent risk factor for postoperative morbidity (P < 0.05). CONCLUSIONS The MDSG in TLDG is safe and feasible for early GC; however, it should be chosen with caution in advanced GC, particularly in patients with a high BMI.
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Kim SM, Ha MH, Seo JE, Kim JE, Choi MG, Sohn TS, Bae JM, Kim S, Lee JH. Comparison of single-port and reduced-port totally laparoscopic distal gastrectomy for patients with early gastric cancer. Surg Endosc 2015; 30:3950-7. [PMID: 26694180 DOI: 10.1007/s00464-015-4706-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 11/24/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Laparoscopy-assisted distal gastrectomy (LADG) is a treatment method for patients with early gastric cancer; however, single- or reduced-port LADG for these patients has been rarely reported. OBJECTIVE To compare surgical outcomes of patients with gastric cancer undergoing single-port totally laparoscopic distal gastrectomy (TLDG) to those of patients undergoing reduced-port (three ports) TLDG. METHODS This retrospective study included 94 patients with early gastric cancer who underwent single-port or reduced-port TLDG at Samsung Medical Center between May 2014 and December 2014. Surgical outcomes were compared between operation methods. RESULTS There are more female patients (54.2 vs. 19.6 %, p = 0.001) and less obese patients (21.1 ± 2.1 vs. 24.6 ± 3.2 kg/m(2), p = 0.001) in the single-port TLDG group. There were no significant differences in blood loss during surgery, the number of dissected lymph nodes, and the pain score at postoperative first day between two groups. The variance in operation time for the reduced-port TLDG was significantly greater than that for single-port TLDG (p = 0.01). Complication rates in the single-port and reduced-TLDG groups were similar (20.8 vs. 21.7 %, p = 1.000). No postoperative deaths occurred in either group. CONCLUSIONS Single-port TLDG might be considered as a treatment option for a limited subset, such as females or less obese patients with early gastric cancer.
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Affiliation(s)
- Su Mi Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Man Ho Ha
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jeong Eun Seo
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ji Eun Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Min Gew Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Tae Sung Sohn
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jae Moon Bae
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jun Ho Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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Martin-Richard M, Custodio A, García-Girón C, Grávalos C, Gomez C, Jimenez-Fonseca P, Manzano JL, Pericay C, Rivera F, Carrato A. Seom guidelines for the treatment of gastric cancer 2015. Clin Transl Oncol 2015; 17:996-1004. [PMID: 26691658 PMCID: PMC4689778 DOI: 10.1007/s12094-015-1456-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 11/13/2015] [Indexed: 02/06/2023]
Abstract
Gastric cancer is the fourth cause of death by cancer in Spain and a significant medical problem. Molecular biology results evidence that gastroesophageal junction tumors and gastric cancer should be considered as two independent entities with a different prognosis and treatment approach. Endoscopic resection in very early tumors is feasible. Neoadjuvant and adjuvant therapy in locally advanced resectable tumor increase overall survival and should be considered standard treatments. In stage IV tumors, platinum–fluoropyrimidine-based schedule, with trastuzumab in HER2-overexpressed tumors, is the first-line treatment. Different therapies in second line have demonstrated in randomized studies their clear benefit in survival improvement.
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Affiliation(s)
- M Martin-Richard
- Medical Oncology Department, Hospital de la Santa Creu I Sant Pau, 167, 08025, Barcelona, Spain.
| | - A Custodio
- Medical Oncology Department, Hospital Universitario Clínico San Carlos, Madrid, Spain
| | - C García-Girón
- Medical Oncology Department, Hospital Universitario de Burgos, Burgos, Spain
| | - C Grávalos
- Medical Oncology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - C Gomez
- Medical Oncology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - P Jimenez-Fonseca
- Medical Oncology Department, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - J L Manzano
- Medical Oncology Department, Hospital Universitari Germans Trias I Pujol de Badalona, Barcelona, Spain
| | - C Pericay
- Medical Oncology Department, Hospital de Sabadell-Consorcio Sanitario Parc Taulì, Barcelona, Spain
| | - F Rivera
- Medical Oncology Department, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - A Carrato
- Medical Oncology Department, Hospital Universitario Ramón y Cajal, Madrid, Spain
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Lee SH, Kim IH, Kim IH, Kwak SG, Chae HD. Comparison of short-term outcomes and acute inflammatory response between laparoscopy-assisted and totally laparoscopic distal gastrectomy for early gastric cancer. Ann Surg Treat Res 2015; 89:176-82. [PMID: 26446446 PMCID: PMC4595817 DOI: 10.4174/astr.2015.89.4.176] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 05/04/2015] [Accepted: 05/07/2015] [Indexed: 02/07/2023] Open
Abstract
Purpose Laparoscopic gastrectomy is widely used to treat early gastric cancer. The advantages of totally laparoscopic distal gastrectomy (TLDG) are unproven, and some concerns remain regarding the early surgical outcomes due to its technical difficulty. We compared the early surgical outcomes and acute inflammatory response between patients undergoing TLDG and laparoscopy-assisted distal gastrectomy (LADG) for treatment of early gastric cancer. Methods We performed a retrospective study on 212 consecutive patients who underwent laparoscopic distal gastrectomy for gastric cancer between January 2008 and June 2014. A total of 179 LADG cases and 33 TLDG cases were included. After age, sex, body mass index, and American Society of Anesthesiologists physical status score were matched using propensity score matching (PSM), we compared the short-term surgical outcomes between the LADG and TLDG groups. Results The TLDG group had a shorter hospital stay (9.5 days vs. 11.0 days, P = 0.046) and less blood loss (116.6 mL vs. 141.5 mL, P = 0.031) than those in the LADG group. There were no differences in the preoperative WBC count and CRP level and the other clinical data between the two groups after PSM. Postoperative WBC count, serum CRP level, and decrease rate of WBC count in the TLDG group were significantly lower than those in the LADG group. Conclusion The short-term outcomes of TLDG revealed better than that of LADG in this study. Therefore, TLDG is one of the safe and feasible procedure for the treatment of early gastric cancer.
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Affiliation(s)
- Sang-Ho Lee
- Department of Surgery, Daegu Catholic University Medical Center, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - In-Ho Kim
- Department of Surgery, Daegu Catholic University Medical Center, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - In-Hwan Kim
- Department of Surgery, Daegu Catholic University Medical Center, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - Sang-Gyu Kwak
- Department of Medical Statistics, Daegu Catholic University Medical Center, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - Hyun-Dong Chae
- Department of Surgery, Daegu Catholic University Medical Center, Catholic University of Daegu School of Medicine, Daegu, Korea
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Lin X, Zhao Y, Song WM, Zhang B. Molecular classification and prediction in gastric cancer. Comput Struct Biotechnol J 2015; 13:448-58. [PMID: 26380657 PMCID: PMC4556804 DOI: 10.1016/j.csbj.2015.08.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 07/23/2015] [Accepted: 08/01/2015] [Indexed: 12/19/2022] Open
Abstract
Gastric cancer, a highly heterogeneous disease, is the second leading cause of cancer death and the fourth most common cancer globally, with East Asia accounting for more than half of cases annually. Alongside TNM staging, gastric cancer clinic has two well-recognized classification systems, the Lauren classification that subdivides gastric adenocarcinoma into intestinal and diffuse types and the alternative World Health Organization system that divides gastric cancer into papillary, tubular, mucinous (colloid), and poorly cohesive carcinomas. Both classification systems enable a better understanding of the histogenesis and the biology of gastric cancer yet have a limited clinical utility in guiding patient therapy due to the molecular heterogeneity of gastric cancer. Unprecedented whole-genome-scale data have been catalyzing and advancing the molecular subtyping approach. Here we cataloged and compared those published gene expression profiling signatures in gastric cancer. We summarized recent integrated genomic characterization of gastric cancer based on additional data of somatic mutation, chromosomal instability, EBV virus infection, and DNA methylation. We identified the consensus patterns across these signatures and identified the underlying molecular pathways and biological functions. The identification of molecular subtyping of gastric adenocarcinoma and the development of integrated genomics approaches for clinical applications such as prediction of clinical intervening emerge as an essential phase toward personalized medicine in treating gastric cancer.
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Affiliation(s)
- Xiandong Lin
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, NY 10029, USA
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Provincial Cancer Hospital, No. 420 Fuma Road, Jinan District, Fuzhou, Fujian 350014, PR China
| | - Yongzhong Zhao
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, NY 10029, USA
| | - Won-min Song
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, NY 10029, USA
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, NY 10029, USA
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Huang CM, Tu RH, Lin JX, Zheng CH, Li P, Xie JW, Wang JB, Lu J, Chen QY, Cao LL, Lin M. A scoring system to predict the risk of postoperative complications after laparoscopic gastrectomy for gastric cancer based on a large-scale retrospective study. Medicine (Baltimore) 2015; 94:e812. [PMID: 25929938 PMCID: PMC4603032 DOI: 10.1097/md.0000000000000812] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
To investigate the risk factors for postoperative complications following laparoscopic gastrectomy (LG) for gastric cancer and to use the risk factors to develop a predictive scoring system.Few studies have been designed to develop scoring systems to predict complications after LG for gastric cancer.We analyzed records of 2170 patients who underwent a LG for gastric cancer. A logistic regression model was used to identify the determinant variables and develop a predictive score.There were 2170 patients, of whom 299 (13.8%) developed overall complications and 78 (3.6%) developed major complications. A multivariate analysis showed the following adverse risk factors for overall complications: age ≥65 years, body mass index (BMI) ≥ 28 kg/m, tumor with pyloric obstruction, tumor with bleeding, and intraoperative blood loss ≥75 mL; age ≥65 years, a Charlson comorbidity score ≥3, tumor with bleeding and intraoperative blood loss ≥75 mL were identified as independent risk factors for major complications. Based on these factors, the authors developed the following predictive score: low risk (no risk factors), intermediate risk (1 risk factor), and high risk (≥2 risk factors). The overall complication rates were 8.3%, 15.6%, and 29.9% for the low-, intermediate-, and high-risk categories, respectively (P < 0.001); the major complication rates in the 3 respective groups were 1.2%, 4.7%, and 10.0% (P < 0.001).This simple scoring system could accurately predict the risk of postoperative complications after LG for gastric cancer. The score might be helpful in the selection of risk-adapted interventions to improve surgical safety.
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Affiliation(s)
- Chang-Ming Huang
- From the Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
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21
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Comparison of the long-term results of patients who underwent laparoscopy versus open distal gastrectomy. Surg Endosc 2015; 30:430-436. [PMID: 25875090 DOI: 10.1007/s00464-015-4215-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 04/06/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND Survival data of patients who underwent laparoscopy assisted distal gastrectomy (LADG) compared with those of patients who underwent open distal gastrectomy (ODG) for gastric cancer are rarely presented. We compared long-term outcomes of LADG with those of ODG in patients with EGC who met the current indication for LADG. METHODS A total of 2410 patients with early gastric cancer who underwent curative-intent gastric cancer surgery in three Korean tertiary hospitals between January 2003 and June 2009 were included in this multicenter, retrospective, propensity-score-matched cohort study. Cox proportional hazard regression models were used to evaluate the association between operation methods and survival. RESULTS In the matched cohort, there were no significant differences in overall survival [hazard ratio (HR) for the LADG group 0.990; 95% confidence interval (CI) 0.675-1.453] or recurrence-free survival (HR 0.989; 95% CI 0.480-2.038). The patterns of recurrence were not different between the two groups. The most common pattern of recurrence was liver metastasis followed by metastasis to distant lymph nodes. The rate of complications in the LADG group was higher than that of the ODG group (6.7 vs. 4.6%, P = 0.045). Grade III or worse complications that required surgical intervention or were life-threatening showed a marginal difference between the two groups (1.7 vs. 2.2%, P = 0.052). There were no postoperative mortalities in either group. CONCLUSION Laparoscopy assisted distal gastrectomy for patients with early gastric cancer is feasible in terms of the long-term results including survival and recurrence.
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22
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Coratti A, Annecchiarico M, Di Marino M, Gentile E, Coratti F, Giulianotti PC. Robot-assisted gastrectomy for gastric cancer: current status and technical considerations. World J Surg 2015; 37:2771-81. [PMID: 23674257 DOI: 10.1007/s00268-013-2100-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Robot-assisted gastrectomy has been reported as a safe alternative to the conventional laparoscopy or open approach for treating early gastric carcinoma. To date, however, there are a limited number of published reports available in the literature. METHODS We assess the current status of robotic surgery in the treatment of gastric cancer, focusing on the technical details and oncological considerations. RESULTS In gastric surgery, the biggest advantage of robotic surgery is the ease and reproducibility of D2-lymphadenectomy. Reports show that even the intracorporeal digestive restoration is facilitated by use of the robotic approach, particularly following total gastrectomy. Additionally, the accuracy of robotic dissection is confirmed by decreased blood loss, as reported in series comparing robot-assisted with laparoscopic gastrectomy. The learning curve and technical reproducibility also appear to be shorter with robotic surgery and, consequently, robotics can help to standardize and diffuse minimally invasive surgery in the treatment of gastric cancer, even in the later stages. This is important because the application of minimally invasive surgery is limited by the complexity of performing a D2-lymphadenectomy. The potential to reproduce D2-lymphadenectomy, enlarged resections, and complex reconstructions provides robotic surgery with an important role in the therapeutic strategy of advanced gastric cancer. CONCLUSIONS While published reports have shown no significant differences in surgical morbidity, mortality, or oncological adequacy between robot-assisted and conventional laparoscopic gastrectomy, more studies are needed to assess the indications and oncological effectiveness of robotic use in the treatment of gastric carcinoma. Herein, the authors assess the current status of robotic surgery in the treatment of gastric cancer, focusing on the technical details and oncological considerations.
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Affiliation(s)
- Andrea Coratti
- Department of General Surgery, Misericordia Hospital, Grosseto, Italy,
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23
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Coratti A, Fernandes E, Lombardi A, Di Marino M, Annecchiarico M, Felicioni L, Giulianotti PC. Robot-assisted surgery for gastric carcinoma: Five years follow-up and beyond: A single western center experience and long-term oncological outcomes. Eur J Surg Oncol 2015; 41:1106-13. [PMID: 25796984 DOI: 10.1016/j.ejso.2015.01.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 12/08/2014] [Accepted: 01/13/2015] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Robot-assisted surgery for the treatment of gastric cancer is considered to be safe and feasible with early post-operative outcomes comparable to open and laparoscopic series. However, data regarding long-term oncological outcomes are lacking. Aim of this study is to evaluate long-term oncological outcomes of a cohort of gastric cancer patients treated surgically with the robot-assisted approach. MATERIALS AND METHODS A prospectively collected database of robot-assisted gastrectomies performed for gastric cancer at the 'Misericordia Hospital' between September 2001 and October 2011 was retrospectively analysed. Data regarding surgical procedures, early postoperative course, and long-term follow-up were analysed. RESULTS The study included 98 consecutive robot-assisted gastrectomies. Fifty-nine distal gastrectomies, 38 total gastrectomies, and 1 proximal gastrectomy. Open conversion occurred in seven patients (7.1%) due to locally advanced disease. Postoperative morbidity and mortality were 12.2% and 4.1% respectively. Post-operative staging showed 46 patients (46.9%) with stage I disease, 25 patients (25.5%) with stage II, 26 (26.5%) with stage III and 1 (1.02%) with stage IV. The mean follow-up was 46.9 months. Cumulative 5-year overall survival (OS) was 73.3% (95% CI: 62.2-84.4). Five-year survival by stage subgroups was 100% for patients with stage IA, 84.6% for stage IB, 76.9% for stage II, and 21.5% for stage III. The only patient in stage IV of this series died eight months after surgery. CONCLUSIONS Robot-assisted gastrectomy for the treatment of gastric cancer is safe and feasible. It provides long-term outcomes comparable to most open and laparoscopic series. Further studies are necessary to better define its indication.
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Affiliation(s)
- A Coratti
- Department of General Surgery, Misericordia Hospital, Grosseto, Italy
| | | | - A Lombardi
- Department of General Surgery, Misericordia Hospital, Grosseto, Italy
| | - M Di Marino
- Department of General Surgery, Misericordia Hospital, Grosseto, Italy
| | - M Annecchiarico
- Department of General Surgery, Misericordia Hospital, Grosseto, Italy
| | - L Felicioni
- Department of General Surgery, Misericordia Hospital, Grosseto, Italy
| | - P C Giulianotti
- Department of Surgery, Division of General, Minimally Invasive, and Robotic Surgery, University of Illinois at Chicago, Chicago, IL, USA
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Is Laparoscopic Surgery the Standard of Care for GI Luminal Cancer? Indian J Surg 2015; 76:444-52. [PMID: 25614719 DOI: 10.1007/s12262-014-1126-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 06/16/2014] [Indexed: 12/18/2022] Open
Abstract
As surgeons in India strive to keep pace with the technical advances in the field of laparoscopic surgery, we endeavor to evaluate the mounting global evidence regarding laparoscopic gastric and colorectal resections for cancer. We seem to be riding on the crest of excellence in traditional open surgery for gastrointestinal malignancies, opening avenues for research and for the establishment of practice guidelines in laparoscopic surgery. Results from available trials along with those from ongoing studies are paving the path toward the acceptance and standardization of these procedures. What must be ascertained is whether sound oncological principles, which are ultimately exhibited by long-term outcomes, are being preserved while garnering the established benefits of minimally invasive surgery.
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Chen XZ, Wen L, Rui YY, Liu CX, Zhao QC, Zhou ZG, Hu JK. Long-term survival outcomes of laparoscopic versus open gastrectomy for gastric cancer: a systematic review and meta-analysis. Medicine (Baltimore) 2015; 94:e454. [PMID: 25634185 PMCID: PMC4602964 DOI: 10.1097/md.0000000000000454] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Many meta-analyses have confirmed the technical feasibility and favorable short-term surgical outcomes of laparoscopic gastrectomy (LG) for gastric cancer patients, but the long-term survival outcome of LG remains controversial compared with open gastrectomy (OG). This study aimed to compare the 5-year overall survival (OS), recurrence, and gastric cancer-related death of LG with OG among gastric cancer patients. PubMed was searched to February 2014. The resectable gastric cancer patients who underwent curative LG or OG were eligible. The studies that compared 5-year OS, recurrence, or gastric cancer-related death in the LG and OG groups were included. A meta-analysis, meta-regression, sensitivity analysis, subgroup analysis, and stage-specific analysis were performed to estimate the survival outcome between the two groups and identify the potential confounders. Quality assessment was based on a tailored comparability scoring system. Twenty-three studies with 7336 patients were included. The score of comparability between two groups and the extent of lymphadenectomy were two independent confounders. Based on the well-balanced studies, the 5-year OS (OR = 1.07, 95% CI 0.90-1.28, P = 0.45), recurrence (OR = 0.83, 95% CI 0.68-1.02, P = 0.08), and gastric cancer-related death (OR = 0.86, 95% CI 0.65-1.13, P = 0.28) rates were comparable in LG and OG. Several subsets such as the publication year, study region, sample size, gastrectomy pattern, extent of lymphadenectomy, number of nodes harvested, and proportion of T1-2 or N0-1 did not influence the estimates, if they were well balanced. Particularly, the stage-specific estimates obtained comparable results between the two groups. Randomized controlled trials comparing LG with OG remain sparse to assess their long-term survival outcomes. The major contributions of this systematic review compared with other meta-analyses are a comprehensive collection of available long-term survival outcomes within a much larger number of observations and a more precise consideration of confounders. Current knowledge indicates that the long-term survival outcome of laparoscopic gastric cancer surgery is comparable to that of open surgery among early or advanced stage gastric cancer patients, and LG is acceptable with regard to oncologic safety.
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Affiliation(s)
- Xin-Zu Chen
- From the Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, China (XZC, YYR, ZGZ, JKH); Department of Surgery, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, China (LW, CXL, QCZ)
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Lee JH, Kim JG, Jung HK, Kim JH, Jeong WK, Jeon TJ, Kim JM, Kim YI, Ryu KW, Kong SH, Kim HI, Jung HY, Kim YS, Zang DY, Cho JY, Park JO, Lim DH, Jung ES, Ahn HS, Kim HJ. [Synopsis on clinical practice guideline of gastric cancer in Korea: an evidence-based approach]. THE KOREAN JOURNAL OF GASTROENTEROLOGY 2014; 63:66-81. [PMID: 24561693 DOI: 10.4166/kjg.2014.63.2.66] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Although, gastric cancer is quite common in Korea, the treatment outcome is relatively favorable compared to that of Western countries. However, there is no Korean multidisciplinary guideline for gastric cancer and thus, a guideline adequate for domestic circumstances is required. Experts from related societies developed 22 recommendation statements for the diagnosis (n=9) and treatment (n=13) based on relevant key questions. Evidence levels based on systematic review of literatures were classified as five levels from A to E, and recommendation grades were classified as either strong or weak. The topics of this guideline cover diagnostic modalities (endoscopy, endoscopic ultrasound, radiologic diagnosis), treatment modalities (surgery, therapeutic endoscopy, chemotherapy, radiotherapy) and pathologic evaluation. External review of the guideline was conducted at the finalization phase.
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Affiliation(s)
- Jun Haeng Lee
- Department of Gastroenterology, Chung-Ang University College of Medicine, 84 Heukseok-ro, Dongjak-gu, Seoul 156-861, Korea
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27
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Lee JH, Kim JG, Jung HK, Kim JH, Jeong WK, Jeon TJ, Kim JM, Kim YI, Ryu KW, Kong SH, Kim HI, Jung HY, Kim YS, Zang DY, Cho JY, Park JO, Lim DH, Jung ES, Ahn HS, Kim HJ. Clinical practice guidelines for gastric cancer in Korea: an evidence-based approach. J Gastric Cancer 2014; 14:87-104. [PMID: 25061536 PMCID: PMC4105383 DOI: 10.5230/jgc.2014.14.2.87] [Citation(s) in RCA: 147] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 06/26/2014] [Indexed: 12/13/2022] Open
Abstract
Although gastric cancer is quite common in Korea, the treatment outcome is relatively favorable compared to those in western countries. However, there are currently no Korean multidisciplinary guidelines for gastric cancer. Experts from related societies developed guidelines de novo to meet Korean circumstances and requirements, including 23 recommendation statements for diagnosis (n=9) and treatment (n=14) based on relevant key questions. The quality of the evidence was rated according to the GRADE evidence evaluation framework: the evidence levels were based on a systematic review of the literature, and the recommendation grades were classified as either strong or weak. The applicability of the guidelines was considered to meet patients' view and preferences in the context of Korea. The topics of the guidelines cover diagnostic modalities (endoscopy, endoscopic ultrasound, and radiologic diagnosis), treatment modalities (surgery, therapeutic endoscopy, chemotherapy, and radiotherapy), and pathologic evaluation. An external review of the guidelines was conducted during the finalization phase.
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Affiliation(s)
- Jun Haeng Lee
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae G. Kim
- Department of Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hye-Kyung Jung
- Department of Internal Medicine, Ewha Medical Research Institute, Ewha Womans University School of Medicine, Seoul, Korea
| | - Jung Hoon Kim
- Department of Radiology and Institute of Radiation Medicine, Seoul National University, College of Medicine, Seoul, Korea
| | - Woo Kyoung Jeong
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Tae Joo Jeon
- Department of Nuclear Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Mee Kim
- Department of Pathology, Inha University School of Medicine, Incheon, Korea
| | - Young Il Kim
- Department of Surgery, Ewha Womans University School of Medicine, Seoul, Korea
| | - Keun Won Ryu
- Center for Gastric Cancer, National Cancer Center, Goyang, Korea
| | - Seong-Ho Kong
- Department of Surgery, Seoul National University Hospital, Seoul, Korea
| | - Hyoung-Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Hwoon-Yong Jung
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yong Sik Kim
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Dae Young Zang
- Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Anyang, Korea
| | - Jae Yong Cho
- Department of Medical Oncology, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Oh Park
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Do Hoon Lim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eun Sun Jung
- Department of Pathology, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Korea
| | - Hyeong Sik Ahn
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hyun Jung Kim
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
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Kim MC, Kim KH, Kim YM, Jung GJ. Comprehension of readmission after laparoscopy assisted distal gastrectomy: what are the causes? Ann Surg Treat Res 2014; 86:237-43. [PMID: 24851224 PMCID: PMC4024929 DOI: 10.4174/astr.2014.86.5.237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 01/14/2014] [Accepted: 02/04/2014] [Indexed: 12/29/2022] Open
Abstract
Purpose The aim of this study is to evaluate long-term outcomes regarding readmission for laparoscopy-assisted distal subtotal gastrectomy (LADG) compared to conventional open distal subtotal gastrectomy (CODG) for early gastric cancer (EGC). Methods Between January 2003 and December 2006, 223 and 106 patients underwent LADG and CODG, respectively, for EGC by one surgeon. The clinicopathologic characteristics, postoperative outcomes, postoperative complications, overall 5-year survival, recurrence, and readmission were retrospectively compared between the two groups. Results Multiple readmission rate in LADG was significantly less than that in CODG (0.4% vs. 3.8%, P = 0.039), although the readmission rate, reoperation rate after discharge, and mean readmission days were not significantly different between the two groups. Readmission rates of the LADG and CODG groups were 12.6% and 14.2%, respectively. First flatus time and postoperative hospital stay was significantly shorter in the LADG group. However, there was no significant difference in the complication rates between the two groups. Overall 5-year survival rates of the LADG and CODG group were 100% and 99.1% (P = 0.038), respectively. Conclusion Compared to the CODG group, the LADG group has several advantages in surgical short-term outcome and some benefit in terms of readmission in surgical long-term outcome for patients with EGC, even though the oncologic outcome of LADG is similar to that of CODG over 5 years.
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Affiliation(s)
- Min-Chan Kim
- Department of Surgery, Dong-A University College of Medicine, Busan, Korea
| | - Ki-Han Kim
- Department of Surgery, Dong-A University College of Medicine, Busan, Korea
| | - Yoo-Min Kim
- Department of Surgery, Dong-A University College of Medicine, Busan, Korea
| | - Ghap-Joong Jung
- Department of Surgery, Dong-A University College of Medicine, Busan, Korea
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Kojima F, Sato T, Tsunoda S, Takahata H, Hamaji M, Komatsu T, Okada M, Sugiura T, Oshiro O, Sakai Y, Date H, Nakamura T. Development of a novel marking system for laparoscopic gastrectomy using endoclips with radio frequency identification tags: feasibility study in a canine model. Surg Endosc 2014; 28:2752-9. [PMID: 24651896 DOI: 10.1007/s00464-014-3501-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 02/17/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Intraoperative identification of early gastric cancer is difficult to conduct during laparoscopic procedures. In this study, we investigated the feasibility and accuracy of a newly developed marking system using endoclips with radio frequency identification (RFID) tags in a canine model. METHODS RFID is a wireless near field communication technology. Among the open frequency bands available for medical use, 13.56 MHz is suitable for a surgical marking system because of the similar and linear signal decay both in air and in biological tissues. The proposed system consists of four parts: (a) endoclips with RFID tags, (b) endo-clip applier equipment, (c) laparoscopic locating probe, and (d) signal processing units with audio interface. In the experimental setting using canine models, RFID-tagged endoclips were applied to the mucosa of each dog's stomach. During the subsequent operation, the clips with RFID tags placed in five dogs were located by the detection of the RFID signal from the tag (RFID group), and the conventional clips in the other six dogs were located by finger palpation (FP group). The detected sites were marked by ablation on the serosal surface. Distance between the clips and the metal pin needles indicating ablated sites were measured with X-ray radiographs of the resected specimen. RESULTS All clips were successfully detected by the marking system in the RFID group (10/10) and by finger palpation in the FP group (17/17). The medians of detection times were 31.5 and 25.0 s, respectively; the distances were 5.63 and 7.62 mm, respectively. The differences were not statistically significant. No adverse event related to the procedures was observed. CONCLUSIONS Endoclips with RFID tags were located by our novel marking system in an experimental laparoscopic setting using canine stomachs with substantial accuracy comparable to conventional endoclips located by finger palpation through an open approach.
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Affiliation(s)
- Fumitsugu Kojima
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
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Yamashita K, Sakuramoto S, Mieno H, Shibata T, Nemoto M, Katada N, Kikuchi S, Watanabe M. Preoperative dual-phase 3D CT angiography assessment of the right hepatic artery before gastrectomy. Surg Today 2014; 44:1912-9. [PMID: 24522892 DOI: 10.1007/s00595-014-0858-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 12/16/2013] [Indexed: 12/14/2022]
Abstract
PURPOSES In the current study, we evaluated the efficacy of dual-phase three-dimensional (3D) CT angiography (CTA) in the assessment of the vascular anatomy, especially the right hepatic artery (RHA), before gastrectomy. METHODS The study initially included 714 consecutive patients being treated for gastric cancer. A dual-phase contrast-enhanced CT scan using 32-multi detector-row CT was performed for all patients. RESULTS Among the 714 patients, 3D CTA clearly identified anomalies with the RHA arising from the superior mesenteric artery (SMA) in 49 cases (6.9 %). In Michels' classification type IX, the common hepatic artery (CHA) originates only from the SMA. Such cases exhibit defective anatomy for the CHA in conjunction with the celiac-splenic artery system, resulting in direct exposure of the portal vein beneath the #8a lymph node station, which was retrospectively confirmed by video in laparoscopic gastrectomy cases. Fused images of both 3D angiography and venography were obtained, and could have predicted the risk preoperatively, and the surgical finding confirmed its usefulness. CONCLUSION Preoperative evaluations using 3D CTA can provide more accurate information about the vessel anatomy. The fused images from 3D CTA have the potential to reduce the intraoperative risks for injuries to critical vessel, such as the portal vein, during gastrectomy.
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Affiliation(s)
- Keishi Yamashita
- Department of Surgery, Kitasato University School of Medicine, Asamizodai 2-1-1, Minami-ku, Sagamihara, Kanagawa, 252-0380, Japan,
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Milone L, Coratti A, Daskalaki D, Fernandes E, Giulianotti PC. [Robotic hepatobiliary and gastric surgery]. Chirurg 2013; 84:651-64. [PMID: 23942961 DOI: 10.1007/s00104-013-2581-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Hepatobiliary surgery is a challenging surgical subspecialty that requires highly specialized training and an adequate level of experience in order to be performed safely. As a result, minimally invasive hepatobiliary surgery has been met with slower acceptance as compared to other subspecialties, with many surgeons in the field still reluctant about the approach. On the other hand, gastric surgery is a very popular field of surgery with an extensive amount of literature especially regarding open and laparoscopic surgery but not much about the robotic approach especially for oncological disease. Recent development of the robotic platform has provided a tool able to overcome many of the limitations of conventional laparoscopic hepatobiliary surgery. Augmented dexterity enabled by the endowristed movements, software filtration of the surgeon's movements, and high-definition three-dimensional vision provided by the stereoscopic camera, allow for steady and careful dissection of the liver hilum structures, as well as prompt and precise endosuturing in cases of intraoperative bleeding. These advantages have fostered many centers to widen the indications for minimally invasive hepatobiliary and gastric surgery, with encouraging initial results. As one of the surgical groups that has performed the largest number of robot-assisted procedures worldwide, we provide a review of the state of the art in minimally invasive robot-assisted hepatobiliary and gastric surgery.The English full-text version of this article is available at SpringerLink (under supplemental).
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Affiliation(s)
- L Milone
- Department of Surgery, Division of Minimally Invasive and Robotic Surgery, University of Illinois at Chicago, 840 S Wood MC 958 Room 435 E, 60612, Chicago, IL, USA
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Fang F, Han F, Ding YL, Wang HJ. Comparison of laparoscopy-assisted surgery and laparotomy for treating locally advanced distal gastric antral cancer. Exp Ther Med 2013; 6:753-758. [PMID: 24137260 PMCID: PMC3786921 DOI: 10.3892/etm.2013.1199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 06/18/2013] [Indexed: 12/31/2022] Open
Abstract
The aim of this study was to investigate the safety, feasibility and mid-term results of laparoscopy-assisted surgery in the treatment of locally advanced gastric antral cancer. The clinical data of 50 patients who received laparoscopy-assisted surgery (Group A) and 62 patients who were treated by conventional laparotomy (Group B) from August 2009 to January 2011 were retrospectively analyzed. The surgical incision length, the volume of blood loss, the intestinal function recovery time, the postoperative complications, the postoperative 1- and 3-year cumulative survival rates and the average survival time in the two groups were observed. The results of the two groups were compared using the χ2 test for the enumeration data, a t-test for the numerical data and a Wilcoxon rank sum test for the skewed data. In addition, the Kaplan-Meier method of single factor analysis was utilized to comwpare the 1- and 3-year cumulative survival rates, as well as the average survival time of the two groups. The results indicated that the duration of surgery for Group A was significantly longer compared with that of Group B (P<0.05); however, the incision length and the volume of intraoperative blood loss in Group A were significantly smaller compared with those of Group B (P<0.01). Furthermore, in Group A, the recovery of intestinal function was more rapid and the time spent in hospital was shorter. However, between Groups A and B, the respective number of dissected lymph nodes (16.3 and 17.2), 1-year survival rates (86.0 and 88.6%) and 3-year survival rates (52.6 and 53.7%) were not significantly different (P<0.05). The results indicate that laparoscopy-assisted surgery is a safe approach for the treatment of locally advanced gastric antral cancer and has beneficial treatment effects. Laparoscopy-assisted surgery is advantageous compared with laparotomy, due to the smaller incision length and reductions in intraoperative blood loss, invasiveness, postoperative recovery time and the number of complications.
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Affiliation(s)
- Fa Fang
- Department of Gastrointestinal Surgery, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830000, P.R. China
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Ren G, Cai R, Zhang WJ, Ou JM, Jin YN, Li WH. Prediction of risk factors for lymph node metastasis in early gastric cancer. World J Gastroenterol 2013; 19:3096-3107. [PMID: 23716990 PMCID: PMC3662950 DOI: 10.3748/wjg.v19.i20.3096] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 12/19/2012] [Accepted: 03/12/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore risk factors for lymph node metastases in early gastric cancer (EGC) and to confirm the appropriate range of lymph node dissection.
METHODS: A total of 202 patients with EGC who underwent curative gastrectomy with lymphadenectomy in the Department of Surgery, Xinhua Hospital and Ruijin Hospital of Shanghai Jiaotong University Medical School between November 2003 and July 2009, were retrospectively reviewed. Both the surgical procedure and the extent of lymph node dissection were based on the recommendations of the Japanese gastric cancer treatment guidelines. The macroscopic type was classified as elevated (type I or IIa), flat (IIb), or depressed (IIc or III). Histopathologically, papillary and tubular adenocarcinomas were grouped together as differentiated adenocarcinomas, and poorly differentiated and signet-ring cell adenocarcinomas were regarded as undifferentiated adenocarcinomas. Univariate and multivariate analyses of lymph node metastases and patient and tumor characteristics were undertaken.
RESULTS: The lymph node metastases rate in patients with EGC was 14.4%. Among these, the rate for mucosal cancer was 5.4%, and 8.9% for submucosal cancer. Univariate analysis showed an obvious correlation between lymph node metastases and tumor location, depth of invasion, morphological classification and venous invasion (χ2 = 122.901, P = 0.001; χ2 = 7.14, P = 0.008; χ2 = 79.523, P = 0.001; χ2 = 8.687, P = 0.003, respectively). In patients with submucosal cancers, the lymph node metastases rate in patients with venous invasion (60%, 3/5) was higher than in those without invasion (20%, 15/75) (χ2 = 4.301, P = 0.038). Multivariate logistic regression analysis revealed that the depth of invasion was the only independent risk factor for lymph node metastases in EGC [P = 0.018, Exp (B) = 2.744]. Among the patients with lymph node metastases, 29 cases (14.4%) were at N1, seven cases were at N2 (3.5%), and two cases were at N3 (1.0%). Univariate analysis of variance revealed a close relationship between the depth of invasion and lymph node metastases at pN1 (P = 0.008).
CONCLUSION: The depth of invasion was the only independent risk factor for lymph node metastases. Risk factors for metastases should be considered when choosing surgery for EGC.
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Oncologic outcomes of laparoscopic gastrectomy: a single-center safety and feasibility study. Surg Endosc 2013; 27:1973-9. [PMID: 23468326 PMCID: PMC3661079 DOI: 10.1007/s00464-012-2696-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Accepted: 10/22/2012] [Indexed: 12/29/2022]
Abstract
Background Indications for laparoscopic gastrectomy (LG) for early stomach cancer have spread worldwide and evaluation of short-term outcomes has been favorable. The present study aimed to evaluate both technical feasibility and safety of LG and short-and long-term outcomes after LG. Methods The study group comprised 231 patients who underwent LG during the period from August 2001 through December 2011 at Gifu University School of Medicine. Results Concomitant resection of other organs was performed in 16 (6.9 %) of the 231 patients, and conversion to open surgery was performed in 5 (2.2 %) patients. The final clinical stage of the patients, according to the Union for International Cancer Control classification, was stage IA in 183 (79.0 %), stage IB in 26 (11.3 %), stage IIA in 9 (2.6 %), stage IIB in 6 (2.6 %), stage IIIA in 5 (2.2 %), and stage IIIB in 2 (0.9 %) patients. Average values of total blood loss and operation time were 133.7 ± 129.0 ml and 328.1 ± 70.1 min, respectively. Postoperative complications were detected in 29 patients (12.6 %), and one patient died. According to the Clavien–Dindo classification of surgical complications, the rate of severe complications of grade ≥3a was 6.1 % and that of grade ≥3b was 1.3 %. There were no significant differences in complications in relation to clinicopathological or operative procedures. Cancer recurrence was detected in 2 (0.9 %) patients. In the patient with peritoneal dissemination, tumor size and macroscopic type were critical. Five-year overall survival rates were 99.3 % for stage IA, 95.2 % for stage IB, and 50.0 % for stage IIB patients. One recurrence each was detected for stages IA and IIB cancers. Conclusion The present study showed LG to have a safe postoperative course and to benefit oncologic outcomes.
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Jiang L, Yang KH, Guan QL, Cao N, Chen Y, Zhao P, Chen YL, Yao L. Laparoscopy-assisted gastrectomy versus open gastrectomy for resectable gastric cancer: an update meta-analysis based on randomized controlled trials. Surg Endosc 2013; 27:2466-80. [PMID: 23361259 DOI: 10.1007/s00464-012-2758-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 11/12/2012] [Indexed: 12/30/2022]
Abstract
BACKGROUND We carry out a meta-analysis to evaluate the effectiveness and safety of laparoscopy-assisted gastrectomy (LAG) versus open gastrectomy for resectable gastric cancer. METHODS We searched EMBASE, the Cochrane Library, PubMed, Science Citation Index (SCI), Chinese biomedicine literature database to identify randomized controlled trials (RCTs) from their inception to April 2012. Meta-analyses were performed using RevMan 5.0 software. It was in line with the preferred reporting items for systematic reviews and meta-analyses statement. The quality of evidence was assessed by GRADEpro 3.6. RESULTS Eight RCTs totaling 784 patients were analyzed. Compared with open gastrectomy group, no significant differences were found in postoperative mortality (OR = 1.49; 95 % CI 0.29-7.79), anastomotic leakage (OR = 1.02; 95 % CI 0.24-4.27) , overall mean number of harvested lymph nodes [weighed mean difference (MD) = -3.17; 95 % CI -6.39 to 0.05]; the overall postoperative complication morbidity (OR = 0.54; 95 % CI 0.36-0.82), estimated blood loss (MD = -107.23; 95 % CI -148.56 to -65.89,) frequency of analgesic administration (MD = -1.69; 95 % CI -2.18 to -1.21, P < 0.00001), incidence of pulmonary complications (OR = 0.43, 95 % CI 0.20-0.93, P = 0.03) were significantly less in LAG group; LAG had shorter time to start first flatus (MD = -0.23; 95 % CI -0.41 to -0.05) and decreased hospital stay (MD = -1.72; 95 % CI -3.40 to 0.04), but, LAG still had longer operation time (MD = 76.70; 95 % CI 51.54-101.87). CONCLUSIONS On the basis of this meta-analysis we conclude that although LAG was still a time-consuming and technically dependent procedure, it has the advantage of better short-term outcome. Long term survival data from other studies are urgently needed to estimate the survival benefit of this technique.
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Affiliation(s)
- Lei Jiang
- Evidence-based Medicine Center, School of Basic Medical Sciences, Lanzhou University, 199 Dong Gang Road, Cheng Guan District, Lanzhou 730000, Gansu, China
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Abstract
Since the concept of early gastric cancer was first described in Japan in 1962, its treatment has evolved from curative surgical resection to endoscopic resection, initially with polypectomy to more recently with endoscopic submucosal dissection. As worldwide experience with these endoscopic techniques evolve and gain acceptance, studies have confirmed its comparable effectiveness with historical surgical outcomes in carefully selected patients. The criteria for endoscopic resection have expanded to offer more patients improved quality of life, avoiding the morbidity and mortality associated with surgery. This article summarizes the evolutional role of endoscopic and surgical therapy in early gastric cancer.
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Affiliation(s)
- Wataru Tamura
- Division of Gastroenterology & Hepatology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA
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Early results of a modified splenic hilar lymphadenectomy in laparoscopy-assisted total gastrectomy for gastric cancer with stage cT1-2: a case–control study. Surg Endosc 2012; 27:1923-31. [DOI: 10.1007/s00464-012-2688-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 10/23/2012] [Indexed: 12/13/2022]
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Laparoscopy versus open distal gastrectomy by expert surgeons for early gastric cancer in Japanese patients: short-term clinical outcomes of a randomized clinical trial. Surg Endosc 2012; 27:1695-705. [PMID: 23247737 DOI: 10.1007/s00464-012-2658-9] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 10/03/2012] [Indexed: 12/29/2022]
Abstract
BACKGROUND Short-term outcomes of laparoscopy-assisted distal gastrectomy (LADG) and open DG (ODG) have been investigated in previous clinical trials, but operative techniques and concomitant treatments have evolved, and up-to-date evidence produced by expert surgeons is required to provide an accurate image of the relative efficacies of the treatments. The purpose of this study was to compare laparoscopic versus ODG with respect to specific primary and secondary short-term outcomes. METHODS From October 2005 to February 2008, a total of 64 patients with early gastric cancer were randomly assigned to the LADG or the ODG group. One patient was excluded due to concurrent illness unrelated to the intervention, so the data from 63 patients were analyzed. The primary short-term outcome was the 4-day postoperative use of analgesics. Secondary short-term outcomes were postoperative residual pain, complications, days hospitalized, blood data, days with fever, and days to first flatus. RESULTS There was a significant difference in favor of LADG for postoperative use of analgesics (P = 0.022). Unexpectedly, there was no significant difference in degree of pain in the immediate postoperative period, putatively due to the optimal use of analgesics. Of the secondary outcomes, residual pain at postoperative day 7 (P = 0.003) and days to first flatus (P = 0.001) were significantly better with LADG. Postoperative complications, number of days hospitalized, and number of days with fever were also better with LADG, but the differences were not significant. Blood data representing inflammation (WBC and CRP) showed marked differences, especially on postoperative day 7 (P = 0.0016 and P = 0.0061, respectively). CONCLUSIONS LADG performed by expert surgeons results in less postoperative pain accompanied by decreased surgical invasiveness and is associated with fewer postoperative inconveniences. No preliminary suggestions of changes in long-term curability were observed. LADG for early gastric cancer is a feasible and safe procedure with short-term clinical results superior to those of ODG.
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Survival outcome of laparoscopic gastrectomy for clinical early (cT1) gastric cancer. Surg Today 2012; 43:1013-8. [DOI: 10.1007/s00595-012-0388-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Accepted: 07/05/2012] [Indexed: 12/18/2022]
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Kim KH, Kim MC, Jung GJ, Kim HH. Long-term outcomes and feasibility with laparoscopy-assisted gastrectomy for gastric cancer. J Gastric Cancer 2012; 12:18-25. [PMID: 22500260 PMCID: PMC3319795 DOI: 10.5230/jgc.2012.12.1.18] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2012] [Revised: 03/06/2012] [Accepted: 03/06/2012] [Indexed: 12/13/2022] Open
Abstract
Purpose Recently, laparoscopy-assisted gastrectomy (LAG) has been widely accepted modality for early gastric cancer in Korea. The indication of LAG may be extended in an experienced institution. In our institution, the first case of laparoscopy-assisted gastrectomy (LAG) for gastric cancer was performed in May 1998. We retrospectively reviewed the long-term oncologic outcomes over 12 years to clarify the feasibility of LAG for gastric cancer. Materials and Methods The authors retrospectively analyzed 753 patients who underwent LAG for gastric cancer, from May 1998 to August 2010. We reviewed clinicopathological features, postoperative outcomes, mortality and morbidity, recurrence, and survival of LAG for gastric cancer. Results During the time period, 3,039 operations for gastric cancer were performed. Among them, 753 cases were done by LAG (24.8%). There were 69 cases of total gastrectomy, 682 subtotal gastrectomies, and 2 proximal gastrectomies. According to TNM stage, 8 patients were in stage 0, 619 in stage I, 88 in stage II, and 38 in stage III. The operation-related complications occurred in 77 cases (10.2%). Median follow-up period was 56.2 months (range 0.7~165.6 months). Twenty-five patients (3.3%) developed recurrence, during the follow-up period. The overall 5-year and disease free survival rates were 97.1% and 96.3%, respectively. Conclusions The number of postoperative complications and survival rates of our series were comparable to the results from that of other reports. The authors consider LAG to be a feasible alternative for the treatment of early gastric cancer. However, rationale for laparoscopic surgery in advanced gastric cancer has yet to be determined.
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Affiliation(s)
- Ki Han Kim
- Department of Surgery, Dong-A University College of Medicine, Busan, Korea
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Nagasako Y, Satoh S, Isogaki J, Inaba K, Taniguchi K, Uyama I. Impact of anastomotic complications on outcome after laparoscopic gastrectomy for early gastric cancer. Br J Surg 2012; 99:849-54. [PMID: 22418853 DOI: 10.1002/bjs.8730] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2012] [Indexed: 11/07/2022]
Abstract
BACKGROUND The effects of anastomotic complications after laparoscopically assisted gastrectomy (LAG) have not been studied widely. The aims of this observational study were to identify potential factors that predict anastomotic complications and investigate the impact of anastomotic complications in patients undergoing gastrectomy for early gastric cancer. METHODS The study included consecutive patients with histologically proven T1 gastric adenocarcinoma treated by LAG with regional lymphadenectomy between August 1997 and March 2008, who had not received neoadjuvant chemotherapy. Anastomotic complications included anastomotic leakage, stricture and remnant gastric stasis of grade II or higher (modified Clavien classification) and were identified by clinical assessment and confirmatory investigation. Predictive factors for the development of anastomotic complications were identified by univariable and multivariable analyses. Long-term survival with or without anastomotic complications was examined. RESULTS Anastomotic complications occurred in 37 (9·3 per cent) of 400 patients. Multivariable analysis indicated surgeon experience as the only independent predictor of anastomotic complications (hazard ratio 4·40, 95 per cent confidence interval 2·04 to 9·53; P < 0·001). Patients with anastomotic complications had a significantly worse overall 5-year survival rate than those without (81 versus 94·2 per cent; P = 0·009). CONCLUSION Anastomotic complications after LAG lead to worse long-term survival.
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Affiliation(s)
- Y Nagasako
- Department of Surgery, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.
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Laparoscopic gastrectomy for patients with advanced gastric cancer produces oncologic outcomes similar to those for open resection. Surg Endosc 2012; 26:1813-21. [PMID: 22350227 DOI: 10.1007/s00464-011-2118-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2011] [Accepted: 10/06/2011] [Indexed: 12/15/2022]
Abstract
BACKGROUND Laparoscopic gastrectomy has gained acceptance as treatment for early gastric cancer. However, its role for advanced gastric cancer remains unclear. This study aimed to compare the oncologic outcomes between laparoscopic and open gastrectomy in the management of advanced gastric cancer for patients receiving adjuvant chemoradiotherapy. METHODS This study reviewed consecutive patients treated with gastric cancer resection and adjuvant chemoradiation (45 Gy/25 with 5-fluorouracil [FU]-based chemotherapy), at a quaternary care comprehensive cancer center between 1 Jan 2000 and 30 Nov 2009. Of 203 patients, 21 were treated with laparoscopic gastrectomy. These patients were compared with patients who had open surgery and evaluated for overall survival, relapse-free survival, and site of first disease recurrence. RESULTS The 21 patients in the laparoscopic group had a median age of 61.3 years (range, 28.2-76.6 years) and a median follow-up period of 21.3 months (range, 6.7-50.4 months). The majority of the patients (71%) were men. Most of these patients had tumor node metastasis (TNM) v6 stage 2 (33%) or 3 (52%) disease as classified by the American Joint Committee on Cancer (AJCC) and the Union for International Cancer Control (UICC). The demographic characteristics of the laparoscopic and open groups were similar. The incidence of recurrence was 38.1% (8/21) in the laparoscopic group and 36.8% (67/182) in the open group. In the laparoscopic group, the site of first recurrence was distant in three patients, peritoneal in four patients, and mixed in one patient (locoregional and distant). The recurrence patterns did not differ significantly between the laparoscopic and open surgery groups. In the open group, recurrence was distant in 26 patients, peritoneal in 12 patients, and locoregional in 15 patients. At presentation, 14 patients showed a mixed pattern. The 3-year relapse-free survival rate was 58% (range, 50-66%), and the difference between the two groups by Gray's test was not significant (P = 0.32). The 3-year overall survival rate was 65.9% (range, 58-73%) and did not differ significantly between the two groups in the univariate (P = 0.92) or multivariate (P = 0.54) analysis. CONCLUSION The study findings suggest that laparoscopic gastrectomy is an oncologically safe procedure for advanced gastric cancer with outcomes similar to those for open resection.
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Kim MC, Kim KH, Jung GJ. A 5 year analysis of readmissions after radical subtotal gastrectomy for early gastric cancer. Ann Surg Oncol 2012; 19:2459-64. [PMID: 22350602 DOI: 10.1245/s10434-012-2271-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Indexed: 12/11/2022]
Abstract
BACKGROUND Many patients and surgeons have become interested in the quality of life after surgery for early gastric cancer. However, no reports on readmission rates for gastrectomy patients have been published, even if readmission greatly affects the patient's quality of life. METHODS In 530 consecutive early gastric cancer patients who underwent radical subtotal gastrectomy, we determined the incidence, cause, timing, type of treatment, and risk factors for readmission after discharge, and compared the readmission and nonreadmission groups with respect to clinicopathologic features and postoperative outcomes. RESULTS Overall, the 5 year and 1 month readmission rates after radical subtotal gastrectomy for early gastric cancer were 13.0% (69 of 530) and 7.5% (40 of 530), respectively. The most common cause for readmission was delayed gastric emptying (17 cases). Among a total of 82 readmissions, 34 patients (41.5%) were readmitted within 2 weeks of surgery. The type of treatment for 82 readmissions included 55 conservative therapies, 15 radiologic or endoscopic interventions, and 12 repeat laparotomies. No significant differences were detected in the clinicopathologic feature and postoperative outcomes between the two groups. The initial hospital stay remained significantly associated with readmission based on multivariate analysis. CONCLUSIONS Readmission rate at 1 month after radical subtotal gastrectomy is lower than that after major bowel surgery. Unusual postoperative recovery in a patient with vague symptoms should be managed with greater care before discharge. After subtotal gastrectomy for early gastric cancer, prevention of readmission can improve the patient's quality of life.
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Affiliation(s)
- Min-Chan Kim
- Department of Surgery, Dong-A University College of Medicine, Busan, Korea.
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Jeong O, Cho SB, Joo YE, Ryu SY, Park YK. Novel technique for intraoperative tumor localization during totally laparoscopic distal gastrectomy: endoscopic autologous blood tattooing. Surg Endosc 2011; 26:1778-83. [PMID: 22179456 DOI: 10.1007/s00464-011-2067-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 11/10/2011] [Indexed: 12/24/2022]
Abstract
BACKGROUND Knowledge of the intraoperative location of lesions is a prerequisite for deciding the proper extent of gastric resection or the choice of anastomosis technique during totally laparoscopic distal gastrectomy (TLDG) for early gastric cancer (EGC). In this study we introduce a novel tumor localization method for TLDG: endoscopic blood tattooing. METHODS Twenty-three consecutive patients scheduled for TLDG for EGC were enrolled in this prospective study. The day before surgery, 2-3 ml of autologous blood was injected into the gastric muscle layer at 3-4 cm proximal to the lesion during endoscopy. RESULTS The study subjects consisted of 15 males and 8 females with a mean age of 61 ± 10.4 years. During surgery, the endoscopic blood tattooed sites were successfully identified in all 23 patients. No complications associated with the procedure occurred, and no patient had microscopic residual tumor cells at the proximal resection margin, with a mean proximal margin length of 3.3 ± 2.7 cm. Eighteen patients underwent TLDG with Billroth II anastomosis, four patients with Roux-en-Y gastrojejunostomy, and one patient with laparoscopic total gastrectomy. At final pathologic examinations, 20 patients were of stage IA and 3 were of stage IB according to the UICC TNM classification (6th ed.). CONCLUSIONS Endoscopic blood tattooing provides a simple and useful means of localizing lesions during TLDG for EGC. Although the superiority of this technique over other localization methods needs to be evaluated further, the authors recommend endoscopic blood tattooing as an alternative to other intraoperative localization methods for laparoscopic surgery for EGC.
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Affiliation(s)
- Oh Jeong
- Division of Gastroenterologic Surgery, Department of Surgery, Chonnam National University Hwasun Hospital, Jeollanam-do, Republic of Korea
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Ding J, Liao GQ, Liu HL, Liu S, Tang J. Meta-analysis of laparoscopy-assisted distal gastrectomy with D2 lymph node dissection for gastric cancer. J Surg Oncol 2011; 105:297-303. [PMID: 21952834 DOI: 10.1002/jso.22098] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2011] [Accepted: 08/22/2011] [Indexed: 12/14/2022]
Abstract
BACKGROUND To assess the value of laparoscopy-assisted distal gastrectomy with D2 dissection for treatment of gastric cancer. METHODS We collected studies that have compared laparoscopy-assisted distal gastrectomy (LADG) and open distal gastrectomy (ODG) with D2 dissection for treatment of gastric cancer in the past 15 years. Data of interest for LADG and ODG were subjected to meta-analysis using a fixed-effect and random-effect model. RESULTS We analyzed 8 studies that included 1,065 patients. There were significant differences in operating time, blood loss, time to first flatus and first eating, postoperative hospital stay, and postoperative complications between the LADG and ODG groups. Compared with the ODG group, blood loss and complications in the LADG group decreased, time to recovery of gastrointestinal function and hospitalization period were shorter, but operating time was longer. There were no significant differences in the number of harvested lymph nodes, mortality, and rate of recurrence between the groups. CONCLUSIONS Compared with ODG, LADG with D2 dissection has the advantages of minimal invasion, faster recovery, and fewer complications, and it can achieve the same degree of radicality and short-term prognosis as ODG. The drawbacks are that the operating time is slightly longer and long-term prognosis is not clear.
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Affiliation(s)
- Jie Ding
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
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Kim HH, Ahn SH. The current status and future perspectives of laparoscopic surgery for gastric cancer. JOURNAL OF THE KOREAN SURGICAL SOCIETY 2011; 81:151-62. [PMID: 22066116 PMCID: PMC3204545 DOI: 10.4174/jkss.2011.81.3.151] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 07/12/2011] [Accepted: 07/18/2011] [Indexed: 12/17/2022]
Abstract
Gastric cancer is most common cancer in Korea. Surgery is still the main axis of treatment. Due to early detection of gastric cancer, the innovation of surgical instruments and technological advances, gastric cancer treatment is now shifting to a new era. One of the most astonishing changes is that minimally invasive surgery (MIS) is becoming more dominant treatment for early gastric cancer. These MIS are represented by endoscopic resection, laparoscopic surgery, robotic surgery, single-port surgery and natural orifice transluminal endoscopic surgery. Among them, laparoscopic gastrectomy is most actively performed in the field of surgery. Laparoscopy-assisted distal gastrectomy (LADG) for early gastric cancer (EGC) has already gained popularity in terms of the short-term outcomes including patient's quality of life. We only have to wait for the long-term oncologic results of Korean Laparoscopic Gastrointestinal Surgery Study Group. Upcoming top issues following oncologic safety of LADG are function-preserving surgery for EGC, application of laparoscopy to advanced gastric cancer and sentinel lymph node navigation surgery. In the aspect of technique, laparoscopic surgery at present could reproduce almost the whole open procedures. However, the other fields mentioned above need more evidences and experiences. All these new ideas and attempts provide technical advances, which will minimize surgical insults and maximize the surgical outcomes and the quality of life of patients.
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Affiliation(s)
- Hyung-Ho Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sang-Hoon Ahn
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
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Laparoscopic surgery for gastric cancer: a collective review with meta-analysis of randomized trials. J Am Coll Surg 2010; 211:677-86. [PMID: 20869270 DOI: 10.1016/j.jamcollsurg.2010.07.013] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Revised: 07/11/2010] [Accepted: 07/14/2010] [Indexed: 02/08/2023]
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de Bree E, Charalampakis V, Melissas J, Tsiftsis DD. The extent of lymph node dissection for gastric cancer: a critical appraisal. J Surg Oncol 2010; 102:552-62. [PMID: 20976727 DOI: 10.1002/jso.21646] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The extent of lymphadenectomy during therapeutic gastrectomy for gastric cancer remains a protracted and controversial issue. While traditionally extended lymphadenectomy is performed in Eastern Asia, limited lymphadenectomy is advocated by most western surgeons. Two large western randomized trials, meta-analyses and a recent systematic review were unable to demonstrate overall benefit from extended lymphadenectomy. In this review, the currently available data on this topic are critically evaluated, while ongoing studies and future perspective are discussed.
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Affiliation(s)
- Eelco de Bree
- Department of Surgical Oncology, Medical School of Crete University Hospital, Heraklion, Greece.
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Angst E, Hiatt JR, Gloor B, Reber HA, Hines OJ. Laparoscopic surgery for cancer: a systematic review and a way forward. J Am Coll Surg 2010; 211:412-23. [PMID: 20800199 DOI: 10.1016/j.jamcollsurg.2010.05.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2009] [Revised: 05/21/2010] [Accepted: 05/26/2010] [Indexed: 12/18/2022]
Affiliation(s)
- Eliane Angst
- Department of Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
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Ohtani H, Tamamori Y, Noguchi K, Azuma T, Fujimoto S, Oba H, Aoki T, Minami M, Hirakawa K. A meta-analysis of randomized controlled trials that compared laparoscopy-assisted and open distal gastrectomy for early gastric cancer. J Gastrointest Surg 2010; 14:958-64. [PMID: 20354807 DOI: 10.1007/s11605-010-1195-x] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2010] [Accepted: 03/09/2010] [Indexed: 01/31/2023]
Abstract
BACKGROUND We conducted a meta-analysis to evaluate and compare the advantages of laparoscopy-assisted distal gastrectomy (LADG) over open distal gastrectomy (ODG) for treating early gastric cancer (EGC). METHODS We searched MEDLINE, EMBASE, Science Citation Index, and Cochrane Controlled Trial Register for relevant papers published between January 1990 and January 2010 by using the following search terms: laparoscopy-assisted gastrectomy, laparoscopic gastrectomy, and early gastric cancer. The following data were analyzed: operative time, estimated blood loss, number of harvested lymph nodes, time required for resumption of oral intake, duration of hospital stay, frequency of analgesic administration, complications, tumor recurrence, and mortality. RESULTS We selected four papers reporting randomized control studies (RCTs) that compared LADG with ODG for EGC. Our meta-analysis included 267 patients with EGC; of these, 134 and 133 had undergone LADG and ODG, respectively. The volume of intraoperative blood loss, frequency of analgesic administration, and rate of complications were significantly lesser for LADG than for ODG. However, the time required for resumption of oral intake and duration of hospital stay did not significantly differ between LADG and ODG. The operative time for LADG was significantly longer than that for ODG; further, the number of harvested lymph nodes was significantly lesser in the LADG group than in the ODG group. CONCLUSION LADG is advantageous over ODG because it results in lesser blood loss, is less painful, and is associated with a low risk of complications. Additional RCTs that compare LADG and ODG and investigate the long-term oncological outcomes of LADG are required to determine the advantages of LADG over ODG.
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Affiliation(s)
- Hiroshi Ohtani
- Department of Surgery, Osaka City Sumiyoshi Hospital, 1-2-16 Higashi-Kagaya, Suminoe-ku, Osaka 559-0012, Japan.
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