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Deng SY, Liu MX, Gao P, Zhang CC, Xing JD, Guo K, Xu K, Tan F, Zhang CH, Cui M, Su XQ. The safety and short-term effect of mixed approach in laparoscopic right hemicolectomy for right colon cancer compared with middle approach: a retrospective study. BMC Surg 2024; 24:150. [PMID: 38745222 PMCID: PMC11092007 DOI: 10.1186/s12893-024-02405-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 04/08/2024] [Indexed: 05/16/2024] Open
Abstract
PURPOSE To investigate whether the mixed approach is a safe and advantageous way to operate laparoscopic right hemicolectomy. METHODS A retrospective study was performed on 316 patients who underwent laparoscopic right hemicolectomy in our center. They were assigned to the middle approach group (n = 158) and the mixed approach group (n = 158) according to the surgical approaches. The baseline data like gender、age and body mass index as well as the intraoperative and postoperative conditions including operation time, blood loss, postoperative hospital stay and complications were analyzed. RESULTS There were no significant differences in age, sex, BMI, ASA grade and tumor characteristics between the two groups. Compared with the middle approach group, the mixed approach group was significantly lower in terms of operation time (217.61 min vs 154.31 min, p < 0.001), intraoperative blood loss (73.8 ml vs 37.97 ml, p < 0.001) and postoperative drainage volume. There was no significant difference in the postoperative complications like postoperative anastomotic leakage, postoperative infection and postoperative intestinal obstruction. CONCLUSIONS Compared with the middle approach, the mixed approach is a safe and advantageous way that can significantly shorten the operation time, reduce intraoperative bleeding and postoperative drainage volume, and does not prolong the length of hospital stay or increase the morbidity postoperative complications.
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Affiliation(s)
- Shun-Yu Deng
- Peking University Health Science Center, Beijing, 100038, China
| | - Mao-Xing Liu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Haidian District, No.52 Fucheng Road, Beijing, 100142, China
| | - Pin Gao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Haidian District, No.52 Fucheng Road, Beijing, 100142, China
| | | | - Jia-Di Xing
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Haidian District, No.52 Fucheng Road, Beijing, 100142, China
| | - Kechen Guo
- Peking University Health Science Center, Beijing, 100038, China
| | - Kai Xu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Haidian District, No.52 Fucheng Road, Beijing, 100142, China
| | - Fei Tan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Haidian District, No.52 Fucheng Road, Beijing, 100142, China
| | - Cheng-Hai Zhang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Haidian District, No.52 Fucheng Road, Beijing, 100142, China
| | - Ming Cui
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Haidian District, No.52 Fucheng Road, Beijing, 100142, China
| | - Xiang-Qian Su
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Haidian District, No.52 Fucheng Road, Beijing, 100142, China.
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Morarasu S, Livadaru C, Dimofte GM. Quality assessment of surgery for colorectal cancer: Where do we stand? World J Gastrointest Surg 2024; 16:982-987. [PMID: 38690042 PMCID: PMC11056676 DOI: 10.4240/wjgs.v16.i4.982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/05/2024] [Accepted: 03/21/2024] [Indexed: 04/22/2024] Open
Abstract
Quality assurance in surgery has been one of the most important topics of debate among colorectal surgeons in the past decade. It has produced new surgical standards that led in part to the impressive oncological outcomes we see in many units today. Total mesorectal excision, complete mesocolic excision (CME), and the Japanese D3 lymphadenectomy are now benchmark techniques embraced by many surgeons and widely recommended by surgical societies. However, there are still ongoing discrepancies in outcomes largely based on surgeon performance. This is one of the main reasons why many countries have shifted colorectal cancer surgery only to high volume centers. Defining markers of surgical quality is thus a perquisite to ensure that standards and oncological outcomes are met at an institutional level. With the evolution of CME surgery, various quality markers have been described, mostly based on measurements on the surgical specimen and lymph node yield, while others have proposed radiological markers (i.e. arterial stumps) measured on postoperative scans as part of the routine cancer follow-up. There is no ideal marker; however, taken together and assembled into a new score or set of criteria may become a future point of reference for reporting outcomes of colorectal cancer surgery in research studies and defining subspecialization requirements both at an individual and hospital level.
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Affiliation(s)
- Stefan Morarasu
- The Second Department of Surgical Oncology, Regional Institute of Oncology, Iasi 707483, Romania
| | - Cristian Livadaru
- The Second Department of Surgical Oncology, Regional Institute of Oncology, Iasi 707483, Romania
| | - Gabriel-Mihail Dimofte
- The Second Department of Surgical Oncology, Regional Institute of Oncology, Iasi 707483, Romania
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3
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Banipal GS, Stimec BV, Andersen SN, Edwin B, Nesgaard JM, Šaltytė Benth J, Ignjatovic D. Are Metastatic Central Lymph Nodes (D3 volume) in right-sided Colon Cancer a Sign of Systemic Disease? A sub-group Analysis of an Ongoing Multicenter Trial. Ann Surg 2024; 279:648-656. [PMID: 37753647 PMCID: PMC10922660 DOI: 10.1097/sla.0000000000006099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
OBJECTIVE Assess outcomes of patients with right-sided colon cancer with metastases in the D3 volume after personalized surgery. BACKGROUND Patients with central lymph node metastasis (D3-PNG) are considered to have a systemic disease with a poor prognosis. A 3-dimensional definition of the dissection volume allows the removal of all central nodes. MATERIALS AND METHODS D3-PNG includes consecutive patients from an ongoing clinical trial. Patients were stratified into residual disease negative (D3-RDN) and residual disease positive (D3-RDP) groups. D3-RDN was further stratified into 4 periods to identify a learning curve. A personalized D3 volume (defined through arterial origins and venous confluences) was removed " en bloc" through medial-to-lateral dissection, and the D3 volume of the specimen was analyzed separately. RESULTS D3-PNG contained 42 (26 females, 63.1 SD 9.9 y) patients, D3-RDN:29 (17 females, 63.4 SD 10.1 y), and D3-RDP:13 (9 females, 62.2 SD 9.7 y). The mean overall survival (OS) days were D3-PNG:1230, D3-RDN:1610, and D3-RDP:460. The mean disease-free survival (DFS) was D3-PNG:1023, D3-RDN:1461, and D3-RDP:74 days. The probability of OS/DFS were D3-PNG:52.1%/50.2%, D3-RDN:72.9%/73.1%, D3-RDP: 7.7%/0%. There is a significant change in OS/DFS in the D3-RDN from 2011-2013 to 2020-2022 (both P =0.046) and from 2014-2016 to 2020-2022 ( P =0.028 and P =0.005, respectively). CONCLUSION Our results indicate that surgery can achieve survival in most patients with central lymph node metastases by removing a personalized and anatomically defined D3 volume. The extent of mesenterectomy and the quality of surgery are paramount since a learning curve has demonstrated significantly improved survival over time despite the low number of patients. These results imply a place for the centralization of this patient group where feasible.
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Affiliation(s)
- Gurpreet Singh Banipal
- Department of Digestive Surgery, Akershus University Hospital, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Bojan Vladimir Stimec
- Anatomy Sector, Teaching Unit, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Solveig Norheim Andersen
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Pathology, Akershus University Hospital, Norway
| | - Bjorn Edwin
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Interventional Centre and Department of HPB Surgery, Rikshospitalet, Oslo University, Hospital, Oslo, Norway
| | - Jens Marius Nesgaard
- Department of Gastrointestinal Surgery, Vestfold Hospital Trust, Tonsberg, Norway
| | - Jurate Šaltytė Benth
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Health Services Research Unit, Akershus University Hospital, Norway
| | - Dejan Ignjatovic
- Department of Digestive Surgery, Akershus University Hospital, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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Meng C, Cao S, Tian Y, Shen S, Liu X, Li Z, Li Y, Sun Y, Xu J, Zhang X, Kong Y, Wang X, Yang H, Zhong H, Jia Z, Zhang D, Zhou Y. Short- and long-term outcomes of laparoscopic or robotic radical gastrectomy based on preoperative perigastric artery CTA surgical decision-making: a high-volume center retrospective study with propensity score matching. Surg Endosc 2023; 37:6930-6942. [PMID: 37328591 DOI: 10.1007/s00464-023-10170-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 04/17/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Some studies have demonstrated the short-term recovery course for patients who underwent laparoscopic gastrectomy according to preoperative computed tomography angiography (CTA) assessment. However, reports of the long-term oncological outcomes are still limited. METHODS The data of 988 consecutive patients who underwent laparoscopic or robotic radical gastrectomy between January 2014 and September 2018 were analyzed retrospectively at our center, and propensity score matching was used to eliminate bias. Study cohorts were divided into the CTA group (n = 498) and the non-CTA group (n = 490) depending on whether preoperative CTA was available. The primary and secondary endpoints were the 3-year overall survival (OS) and disease-free survival (DFS) rates and the intraoperative course and short-term outcomes, respectively. RESULTS 431 patients were included in each group after PSM. Compared with the non-CTA group, the CTA group had more harvested lymph nodes and less operative time, blood loss, intraoperative vascular injury and total cost, especially in the subgroup analysis with BMI ≥ 25 kg/m2 patients. There was no difference in the 3 year OS and DFS between the CTA group and the non-CTA group. When further stratified by BMI < 25 or ≥ 25 kg/m2, the 3-year OS and DFS were significantly higher in the CTA group than in the non-CTA group in terms of BMI ≥ 25 kg/m2. CONCLUSIONS Laparoscopic or robotic radical gastrectomy based on preoperative perigastric artery CTA surgical decision-making has the possibility of improving short-term outcomes. However, there is no difference in the long-term prognosis, except for a subgroup of patients with BMI ≥ 25 kg/m2.
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Affiliation(s)
- Cheng Meng
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Shougen Cao
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Yulong Tian
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Shuai Shen
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
- Department of Gastrointestinal Surgery, Weifang People's Hospital, Weifang, China
| | - Xiaodong Liu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Zequn Li
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Yu Li
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Yuqi Sun
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Jianfei Xu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Xingqi Zhang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Ying Kong
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
- Department of Gastrointestinal Surgery, Jining People's Hospital, Jining, China
| | - Xujie Wang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
- Department of Gastrointestinal Surgery, Weihai Central Hospital, Weihai, China
| | - Hao Yang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Hao Zhong
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Zhuoyu Jia
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China
| | - Dongfeng Zhang
- Department of Epidemiology and Health Statistics, The School of Public Health of Qingdao University, Qingdao, China
| | - Yanbing Zhou
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China.
- Shandong Provincial Key Laboratory of Gastrointestinal Tumor Basic and Translational Medicine, Qingdao, China.
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Sica GS, Vinci D, Siragusa L, Sensi B, Guida AM, Bellato V, García-Granero Á, Pellino G. Definition and reporting of lymphadenectomy and complete mesocolic excision for radical right colectomy: a systematic review. Surg Endosc 2023; 37:846-861. [PMID: 36097099 PMCID: PMC9944740 DOI: 10.1007/s00464-022-09548-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 08/07/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Several procedures have been proposed to reduce the rates of recurrence in patients with right-sided colon cancer. Different procedures for a radical right colectomy (RRC), including extended D3 lymphadenectomy, complete mesocolic excision and central vascular ligation have been associated with survival benefits by some authors, but results are inconsistent. The aim of this study was to assess the variability in definition and reporting of RRC, which might be responsible for significant differences in outcome evaluation. METHODS PRISMA-compliant systematic literature review to identify the definitions of RRC. Primary aims were to identify surgical steps and different nomenclature for RRC. Secondary aims were description of heterogeneity and overlap among different RRC techniques. RESULTS Ninety-nine articles satisfied inclusion criteria. Eight surgical steps were identified and recorded as specific to RRC: Central arterial ligation was described in 100% of the included studies; preservation of mesocolic integrity in 73% and dissection along the SMV plane in 67%. Other surgical steps were inconstantly reported. Six differently named techniques for RRC have been identified. There were 35 definitions for the 6 techniques and 40% of these were used to identify more than one technique. CONCLUSIONS The only universally adopted surgical step for RRC is central arterial ligation. There is great heterogeneity and consistent overlap among definitions of all RRC techniques. This is likely to jeopardise the interpretation of the outcomes of studies on the topic. Consistent use of definitions and reporting of procedures are needed to obtain reliable conclusions in future trials. PROSPERO CRD42021241650.
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Affiliation(s)
- Giuseppe S Sica
- Minimally Invasive Unit, Department of Surgical Science, University Tor Vergata, Rome, Italy. .,Department of Surgical Science, Policlinico Tor Vergata - University Tor Vergata, Rome, Italy.
| | - Danilo Vinci
- Department of Surgical Science, Policlinico Tor Vergata - University Tor Vergata, Rome, Italy
| | - Leandro Siragusa
- Minimally Invasive Unit, Department of Surgical Science, University Tor Vergata, Rome, Italy.,Department of Surgical Science, Policlinico Tor Vergata - University Tor Vergata, Rome, Italy
| | - Bruno Sensi
- Minimally Invasive Unit, Department of Surgical Science, University Tor Vergata, Rome, Italy.,Department of Surgical Science, Policlinico Tor Vergata - University Tor Vergata, Rome, Italy
| | - Andrea M Guida
- Department of Surgical Science, Policlinico Tor Vergata - University Tor Vergata, Rome, Italy
| | - Vittoria Bellato
- Department of Surgical Science, Policlinico Tor Vergata - University Tor Vergata, Rome, Italy.,Ospedale IRCCS San Raffaele, Milan, Italy
| | - Álvaro García-Granero
- Colorectal Unit, Hospital Universitario Son Espases, Palma, Spain.,Applied Surgical Anatomy Unit, Human Embryology and Anatomy Department, University of Valencia, Valencia, Spain.,Human Embryology and Anatomy Department, University of Islas Baleares, Palma, Spain
| | - Gianluca Pellino
- Department of Advanced Medical and Surgical Sciences, Università Degli Studi Della Campania "Luigi Vanvitelli", Naples, Italy.,Colorectal Surgery, Vall d'Hebron University Hospital, Barcelona, Spain
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Tan MNA, Liu B, Lin NS, Liu HM, Loong TH, How KY, Lim GH, Wong KY. Propensity-score-matched analysis of D2 and D3 right hemicolectomy for colon cancer. ANZ J Surg 2022; 92:2577-2584. [PMID: 35946898 DOI: 10.1111/ans.17881] [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: 01/22/2022] [Revised: 06/11/2022] [Accepted: 06/18/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Complete mesocolic excision with D3 lymph node dissection in right-sided colon cancer is associated with improved oncological outcomes, but can potentially be associated with higher rates of complications compared to conventional D2 right hemicolectomy. This study aims to evaluate the oncological and perioperative outcomes of patients who underwent D3 right hemicolectomy, comparing to conventional right hemicolectomy. METHODS From 2015 to 2020, 360 patients underwent right hemicolectomy for colonic malignancies. Data was retrospectively analysed from a prospectively collected database. A propensity-score-matched analysis was performed between the two groups to evaluate their outcomes. RESULTS About 88(24.4%) patients underwent D3 right hemicolectomy, with the rest undergoing D2 right hemicolectomy. After propensity-matched analysis, D3 right hemicolectomy had a higher lymph node yield (median of 26 versus 23, p = 0.005), lower overall recurrence rate (11.7% versus 25.7%, p = 0.03), and lower overall mortality rate (14.5% versus 30.1%, p = 0.02) There were no significant differences in the complication rates. There were no anastomotic leaks. D3 right hemicolectomy was associated with an improved 3-year disease-free survival (DFS) with a hazard ratio of 0.63 (P = 0.21), and also an improved 3-year overall survival (OS) with a hazard ratio of 0.68 (P = 0.31). CONCLUSION D3 right hemicolectomy is associated with a higher lymph node yield, without increasing morbidity or mortality. It is also associated with significantly lower recurrence and overall mortality rates in this study. Short term 3-year DFS and OS also trend towards favouring D3 right hemicolectomy. However, this study is limited by the small sample size and retrospective nature.
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Affiliation(s)
| | - Biquan Liu
- Colorectal Service, Tan Tock Seng Hospital, Singapore
| | - Norman Sihan Lin
- Colorectal Service, Tan Tock Seng Hospital, Singapore.,Division of Colorectal Surgery, National University Hospital, Singapore
| | - Hui Min Liu
- Colorectal Service, Tan Tock Seng Hospital, Singapore
| | - Tse Han Loong
- Colorectal Service, Tan Tock Seng Hospital, Singapore
| | | | | | - Kar Yong Wong
- Colorectal Service, Tan Tock Seng Hospital, Singapore
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Fletcher J, Miskovic D. The Mesentery in Complete Mesocolic Excision. Clin Colon Rectal Surg 2022; 35:288-297. [PMID: 35966980 PMCID: PMC9365457 DOI: 10.1055/s-0042-1743430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The following article summarizes technical aspects of how to operate in the mesentery during complete mesocolic excision (CME). Increasingly, CME is being adopted and as such it is important to establish the anatomical basis of the techniques involved. This review thus serves to provide that foundation and explains the surgical techniques built on it.
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Affiliation(s)
- Jordan Fletcher
- Department of Colorectal Surgery, St. Mark's Hospital, London, United Kingdom
| | - Danilo Miskovic
- Department of Colorectal Surgery, St. Mark's Hospital, London, United Kingdom
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Fletcher J, Ilangovan R, Hanna G, Miskovic D, Lung P. The impact of three-dimensional reconstruction and standardised CT interpretation (AMIGO) on the anatomical understanding of mesenteric vascular anatomy for planning complete mesocolic excision surgery: A randomised crossover study. Colorectal Dis 2022; 24:388-400. [PMID: 34989089 DOI: 10.1111/codi.16041] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/30/2021] [Accepted: 12/22/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND Preoperative planning is a crucial aspect of safe complete mesocolic excision (CME) surgery. 3D models derived from imaging may help improve anatomical understanding of the complex vascular anatomy. Here, we assessed the effect of 3D models on surgeons' anatomical understanding in comparison to a systematic approach for CT scan interpretation (AMIGO). METHOD Fifteen cases were included in the study. Two GI radiology consultants reviewed each scan to ascertain the vascular anatomy. Virtual 3D models were produced and displayed on a web-based platform (https://skfb.ly/6OZUZ). A total of 13 surgical trainees were recruited. Candidates were assessed after baseline anatomical training and subsequently using the AMIGO method and 3D models. Five cases were randomly allocated in each round of testing for each participant. The primary outcome measure was an objective vascular anatomy knowledge score. The secondary outcome measure was subjective feedback from participants. RESULTS Both 3D and AMIGO significantly improved anatomical understanding in comparison to baseline testing. However, 3D was superior to AMIGO (3D [n = 65; median score 8/14] vs. AMIGO [n = 65; median score 6/14; p < 0.0001]. For 13/15 patient cases examined, 3D was superior to the AMIGO method. Eleven participants demonstrated better anatomical understanding using 3D models versus AMIGO. Ten participants preferred 3D models in comparison to standard CT imaging. CONCLUSIONS 3D models improve anatomical understanding of mesenteric vascular anatomy in a group of colorectal surgical trainees in comparison to a formal CT interpretation method. 3D models may be a useful planning adjunct to 2D imaging for CME surgery.
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Affiliation(s)
- Jordan Fletcher
- St Mark's Hospital and Academic Institute, Harrow, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | | | - George Hanna
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Danilo Miskovic
- St Mark's Hospital and Academic Institute, Harrow, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - Phillip Lung
- St Mark's Hospital and Academic Institute, Harrow, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
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9
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Ignjatovic D, Stimec BV. More Than Lymph Node Dissection Has an Effect on Overall Survival For Right Colon Cancer. Dis Colon Rectum 2022; 65:e27. [PMID: 34636787 DOI: 10.1097/dcr.0000000000002313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Dejan Ignjatovic
- Department of Digestive Surgery, Akershus University Hospital, Institute of Clinical Medicine, University of Oslo, Lorenskog, Norway
| | - Bojan V Stimec
- Anatomy Sector, Teaching Unit, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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10
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Thorsen Y, Stimec BV, Lindstrom JC, Oresland T, Ignjatovic D. Stool dynamics after extrinsic nerve injury during right colectomy with extended D3-mesenterectomy. Scand J Gastroenterol 2021; 56:770-776. [PMID: 33961527 DOI: 10.1080/00365521.2021.1918757] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION To improve oncological outcome in right colon cancer surgery, an extended mesenterectomy (D3) is under evaluation. In this procedure, all tissue anterior and posterior to the superior mesenteric vessels from the middle colic to ileocolic artery origin is removed, causing injury to the superior mesenteric nerve plexus. The aim was to study the effects of this injury on bowel dynamics and quality of life (QoL). METHODS Patients undergoing right colectomy with conventional D2- and extended D3-mesenterectomy were asked to record stool number and consistency for 60 d after surgery and complete questionnaires regarding QoL and bowel function (BF) before and after recovery from surgery. We compared early postoperative stool dynamics and long-term QoL in the groups and presented graphs depicting the temporal profile of stool numbers and consistency. RESULTS Thirty-three patients operated with a D3-resection and 12 patients with a D2-resection participated. The results revealed significantly higher stool numbers in the D3-group until day 26, with significantly more loose-watery stools until day 40. The most pronounced difference was found on day 9 (Mean difference in the total number of stools: 2.25 stools/day, p=.004. Mean difference in loose-watery stools/day: 2.81 p<.001). About 25% in the D2- and 69.7% in the D3-group reported having more than three stools/day in the early postoperative phase. There were no differences in long-term QoL and BF between the groups except in stool consistency (p=.039). DISCUSSION/CONCLUSIONS Denervation following extended D3-mesenterectomy leads to transitory reduced consistency and increased frequency. It does not affect long-term QoL or BF.
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Affiliation(s)
- Yngve Thorsen
- Department of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Gastroenterological Surgery, Akershus University Hospital, Lorenskog, Norway
| | - Bojan V Stimec
- Faculty of Medicine, Anatomy Sector, Teaching Unit, University of Geneva, Geneva, Switzerland
| | - Jonas Christoffer Lindstrom
- Department of Clinical Medicine, University of Oslo, Oslo, Norway.,Health Services Research Unit, Akershus University Hospital, Lorenskog, Norway
| | - Tom Oresland
- Department of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Gastroenterological Surgery, Akershus University Hospital, Lorenskog, Norway
| | - Dejan Ignjatovic
- Department of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Gastroenterological Surgery, Akershus University Hospital, Lorenskog, Norway
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Yu H, Zhuang Y, Jian J, Yang C. Predictive value of computed tomography with coronal reconstruction in right hemicolectomy with complete mesocolic excision for right colon cancers: a retrospective study. World J Surg Oncol 2021; 19:189. [PMID: 34183028 PMCID: PMC8240319 DOI: 10.1186/s12957-021-02307-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/17/2021] [Indexed: 12/16/2022] Open
Abstract
Background Understanding the vascular anatomy is critical for performing central vascular ligation (CVL) in right hemicolectomy with complete mesocolic excision (CME). This study aimed to investigate the predictive value of multi-slice spiral computed tomography (MSCT) with coronal reconstruction in right hemicolectomy with CME. Methods This is a retrospective descriptive study. Eighty patients with right colon cancer who underwent right hemicolectomy from December 2015 to January 2020 were included. The intraoperative reports (including imaging data) and MSCT images with coronal reconstruction were analysed and compared. The detection rates of the ileocolic vein (ICV) and ileocolic artery (ICA) roots and the accuracy in predicting their anatomical relationship were analysed. The detection rate and accuracy in predicting the location of the gastrocolic trunk of Henle (GTH), middle colic artery (MCA) and middle colic vein (MCV) were analysed. The distance from the ICV root to the GTH root (ICV-GTH distance) was measured and analysed. The maximum distance from the left side of the superior mesenteric artery (SMA) to the right side of the superior mesenteric vein (SMV), named the ‘lsSMA-rsSMV distance’, was also measured and analysed. Results In seventy-four (92.5%) patients, both the ICV and ICA roots were located; their anatomical relationship was determined by MSCT, and the accuracy of the prediction was 97.2% (72/74). The GTH was located by MSCT in 75 (93.7%) patients, and the accuracy of the prediction was 97.33% (73/75). The MCA was located by MSCT in 47 (58.75%) patients, and the accuracy was 78.72% (37/47). The MCV was located by MSCT in 51 (63.75%) patients, and the accuracy of the prediction was 84.31% (43/51). The ICV-GTH distance was measured in 73 (91.2%) patients, and the mean distance was 4.28 ± 2.5 cm. The lsSMA-rsSMV distance was measured in 76 (95%) patients, and the mean distance was 2.21 ± 0.6 cm. Conclusions With its satisfactory accuracy in predicting and visualising the information of key anatomical sites, MSCT with coronary reconstruction has some predictive value in CME with CVL in right hemicolectomy.
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Affiliation(s)
- Hui Yu
- Department of Gastrointestinal Surgical Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, 420 Fuma Street, Jinan, Fuzhou, Fujian, 350014, P.R. China.
| | - Yong Zhuang
- Department of Gastrointestinal Surgical Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, 420 Fuma Street, Jinan, Fuzhou, Fujian, 350014, P.R. China
| | - Jinliang Jian
- Department of Gastrointestinal Surgical Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, 420 Fuma Street, Jinan, Fuzhou, Fujian, 350014, P.R. China
| | - Chunkang Yang
- Department of Gastrointestinal Surgical Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, 420 Fuma Street, Jinan, Fuzhou, Fujian, 350014, P.R. China
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12
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Andersen BT, Stimec BV, Edwin B, Kazaryan AM, Maziarz PJ, Ignjatovic D. Re-interpreting mesenteric vascular anatomy on 3D virtual and/or physical models: positioning the middle colic artery bifurcation and its relevance to surgeons operating colon cancer. Surg Endosc 2021; 36:100-108. [PMID: 33492511 PMCID: PMC8741724 DOI: 10.1007/s00464-020-08242-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 12/16/2020] [Indexed: 12/14/2022]
Abstract
Background The impact of the position of the middle colic artery (MCA) bifurcation
and the trajectory of the accessory MCA (aMCA) on adequate lymphadenectomy when
operating colon cancer have as of yet not been described and/or analysed in the
literature. The aim of this study was to determine the MCA bifurcation position to
anatomical landmarks and to assess the trajectory of aMCA. Methods The colonic vascular anatomy was manually reconstructed in 3D from
high-resolution CT datasets using Osirix MD and 3-matic Medical and analysed. CT
datasets were exported as STL files and supplemented with 3D printed models when
required. Results Thirty-two datasets were analysed. The MCA bifurcation was left to the
superior mesenteric vein (SMV) in 4 (12.1%), in front of SMV in 17 (53.1%) and right
to SMV in 11 (34.4%) models. Median distances from the MCA origin to bifurcation were
3.21 (1.18–15.60) cm. A longer MCA bifurcated over or right to SMV, while a shorter
bifurcated left to SMV (r = 0.457, p = 0.009). The main MCA direction was towards right in
19 (59.4%) models. When initial directions included left, the bifurcation occurred
left to or anterior to SMV in all models. When the initial directions included right,
the bifurcation occurred anterior or right to SMV in all models. The aMCA was found
in 10 (31.3%) models, following the inferior mesenteric vein (IMV) in 5 near the
lower pancreatic border. The IMV confluence was into SMV in 18 (56.3%), splenic vein
in 11 (34.4%) and jejunal vein in 3 (9.4%) models. Conclusion Awareness of the wide range of MCA bifurcation positions reported is
crucial for the quality of lymphadenectomy performed. The aMCA occurs in 31.3% models
and its trajectory is in proximity to the lower pancreatic border in one half of
models, indicating that it needs to be considered when operating splenic flexure
cancer. Supplementary information The online version of this article (10.1007/s00464-020-08242-8) contains supplementary material, which is available to authorized
users.
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Affiliation(s)
- Bjarte T Andersen
- Department of Gastrointestinal Surgery, Østfold Hospital Trust, PO Box 300, 1714, Grålum, Norway.,Institute for Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway
| | - Bojan V Stimec
- Anatomy Sector, Teaching Unit, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Bjørn Edwin
- Intervention Centre and Department of Hepatopancreatobiliary Surgery, Oslo University Hospital - Rikshospitalet, Oslo, Norway.,Institute for Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway
| | - Airazat M Kazaryan
- Department of Gastrointestinal Surgery, Østfold Hospital Trust, PO Box 300, 1714, Grålum, Norway. .,Intervention Centre and Department of Hepatopancreatobiliary Surgery, Oslo University Hospital - Rikshospitalet, Oslo, Norway. .,Institute for Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway. .,Department of Faculty Surgery, I.M. Sechenov First Moscow State Medical University, Moscow, Russia. .,Department of Surgery N 2, Yerevan State Medical University After M.Heratsi, Yerevan, Armenia.
| | - Przemyslaw J Maziarz
- Department of Digestive Surgery, Akershus University Hospital, Lørenskog, Norway.,Lancet Kirurgisk Praksis, Rolvsøy, Norway
| | - Dejan Ignjatovic
- Institute for Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway.,Department of Digestive Surgery, Akershus University Hospital, Lørenskog, Norway
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13
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Stimec BV, Ignjatovic D. Navigating the mesentery: Part III. Unusual anatomy of ileocolic vessels. Colorectal Dis 2020; 22:1949-1957. [PMID: 32734680 DOI: 10.1111/codi.15284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 07/18/2020] [Indexed: 02/08/2023]
Abstract
AIM The ileocolic vessels are important landmarks in advanced surgery of the midgut. The aim of the present study is to present variations of ileocolic vessels relevant to complete mesocolic excision with D3 lymphadenectomy of the right colon, within their detailed and precise morphometric framework and deriving from a large and consistent series of operated patients. METHODS An ongoing prospective trial 'Safe Radical D3 Right Hemicolectomy for Cancer through Preoperative Biphasic Multidetector Computed Tomography Angiography' was reviewed. The imaging datasets underwent manual segmentation and 3D reconstruction, and the results were validated at surgery. A total of 356 patients were included in the study. RESULTS A cross-section of the series revealed five cases (1.4%) with variation of ileocolic vessels relevant to complete mesocolic excision or D3 extended mesenterectomy. There were two cases with absence of a true classical ileocolic artery, two cases with absence of a true classical ileocolic vein, and one case of precocious bifurcation of the ileocolic artery, left to the superior mesenteric vein. The entire D3 area in all the cases was thoroughly documented and analysed from the morphometric point of view (calibres, lengths of vessels, crossing patterns). CONCLUSION The preoperative visualization of a patient's individual 3D anatomy is a powerful tool in identifying the variations whose negligence could have dire consequences in complete mesocolic excision of the right colon.
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Affiliation(s)
- B V Stimec
- Anatomy Sector, Teaching Unit, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - D Ignjatovic
- Department of Digestive Surgery, Akershus University Hospital, University of Oslo, Lorenskog, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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14
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Value of the surgeon's sightline on hologram registration and targeting in mixed reality. Int J Comput Assist Radiol Surg 2020; 15:2027-2039. [PMID: 32984934 PMCID: PMC7671978 DOI: 10.1007/s11548-020-02263-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 09/14/2020] [Indexed: 12/12/2022]
Abstract
Purpose Mixed reality (MR) is being evaluated as a visual tool for surgical navigation. Current literature presents unclear results on intraoperative accuracy using the Microsoft HoloLens 1®. This study aims to assess the impact of the surgeon’s sightline in an inside-out marker-based MR navigation system for open surgery. Methods Surgeons at Akershus University Hospital tested this system. A custom-made phantom was used, containing 18 wire target crosses within its inner walls. A CT scan was obtained in order to segment all wire targets into a single 3D-model (hologram). An in-house software application (CTrue), developed for the Microsoft HoloLens 1, uploaded 3D-models and automatically registered the 3D-model with the phantom. Based on the surgeon’s sightline while registering and targeting (free sightline /F/or a strictly perpendicular sightline /P/), 4 scenarios were developed (FF-PF-FP-PP). Target error distance (TED) was obtained in three different working axes-(XYZ).
Results Six surgeons (5 males, age 29–62) were enrolled. A total of 864 measurements were collected in 4 scenarios, twice. Scenario PP showed the smallest TED in XYZ-axes mean = 2.98 mm ± SD 1.33; 2.28 mm ± SD 1.45; 2.78 mm ± SD 1.91, respectively. Scenario FF showed the largest TED in XYZ-axes with mean = 10.03 mm ± SD 3.19; 6.36 mm ± SD 3.36; 16.11 mm ± SD 8.91, respectively. Multiple comparison tests, grouped in scenarios and axes, showed that the majority of scenario comparisons had significantly different TED values (p < 0.05). Y-axis always presented the smallest TED regardless of scenario tested. Conclusion A strictly perpendicular working sightline in relation to the 3D-model achieves the best accuracy results. Shortcomings in this technology, as an intraoperative visual cue, can be overcome by sightline correction. Incidentally, this is the preferred working angle for open surgery.
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Agustsdottir EES, Stimec BV, Stroemmen TT, Sheikh AE, Elaiyarajah I, Lindstroem JC, Ignjatovic D. Preventing chylous ascites after right hemicolectomy with D3 extended mesenterectomy. Langenbecks Arch Surg 2020; 405:1017-1024. [PMID: 32691129 PMCID: PMC7541366 DOI: 10.1007/s00423-020-01938-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/14/2020] [Indexed: 12/14/2022]
Abstract
Background We aim to find the incidence of chylous ascites in patients undergoing D3 extended mesenterectomy and evaluate if a routine fat-reduced diet (FRD) has a prophylactic effect. Methods Data from 138 patients included in a D3 extended mesenterectomy trial were collected prospectively. Surgical drains and biochemical testing of drain fluid were used to find the incidence of chylous ascites among the first 39 patients, and a prophylactic fat-reduced diet was then implemented in the next 99 patients as a prophylactic measure. Results In the first 39 patients, we found that 16 (41.0%) developed chylous ascites. After the fat-reduced diet was implemented, 1 (1.0%) of 99 patients developed chylous ascites. Drain discharge was 150 vs. 80 mL daily, respectively, and a regression analysis shows the average leakage in the group with fat-reduced diet was 105 mL/day less than in the patients with no dietary restrictions (p < 0.001). There were no significant differences in the rate of other complications (Fisher exact test, one-tailed p = 0.8845), and although there was a tendency to a shorter hospital stay when given a fat-reduced diet (7.3 ± 5.4 vs. 8.9 ± 4.9 days), the difference was not significant (p = 0.19). Conclusions Chylous ascites is a very common postoperative occurrence after right colectomy with extended D3 mesenterectomy and may be prevented using a routine fat-reduced diet.
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Affiliation(s)
| | - Bojan V Stimec
- Anatomy Sector, Teaching Unit, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Tine Tveit Stroemmen
- Department of Digestive Surgery, Akershus University Hospital, Lørenskog, 1478, Norway
| | - Ariba Ehsan Sheikh
- Department of Digestive Surgery, Akershus University Hospital, Lørenskog, 1478, Norway
| | - Ilackiya Elaiyarajah
- Department of Digestive Surgery, Akershus University Hospital, Lørenskog, 1478, Norway
| | | | - Dejan Ignjatovic
- Department of Digestive Surgery, Akershus University Hospital, Lørenskog, 1478, Norway. .,Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
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Murono K, Miyake H, Hojo D, Nozawa H, Kawai K, Hata K, Tanaka T, Nishikawa T, Shuno Y, Sasaki K, Kaneko M, Emoto S, Ishii H, Sonoda H, Ishihara S. Vascular anatomy of the splenic flexure, focusing on the accessory middle colic artery and vein. Colorectal Dis 2020; 22:392-398. [PMID: 31650684 DOI: 10.1111/codi.14886] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 10/08/2019] [Indexed: 02/06/2023]
Abstract
AIM Recently, the accessory middle colic artery (AMCA) has been recognized as the vessel that supplies blood to the splenic flexure. However, the positional relationship between the AMCA and inferior mesenteric vein (IMV) has not been evaluated. Herein, we aimed to evaluate the anatomy of the AMCA and the splenic flexure vein (SFV). METHOD Two hundred and five patients with colorectal cancer who underwent enhanced CT preoperatively were enrolled in the present study. The locations of the AMCA and IMV were evaluated, focusing on the positional relationship between the vessels and pancreas - below the pancreas or to the dorsal side of the pancreas. RESULTS The AMCA was observed in 74 (36.1%) patients whereas the SFV was found in 177 (86.3%) patients. The left colic artery (LCA) was the major artery accompanying the SFV in 87 (42.4%) of patients. The AMCA accompanied the SFV in 65 (32.7%) patients. In 15 (7.8%) patients, no artery accompanied the SFV. The origin of the AMCA was located on the dorsal side of the pancreas in 15 (20.3%) of these 74 patients. Similarly, the destination of the IMV was located on the dorsal side of the pancreas in 65 (31.7%) of patients. CONCLUSION The SFV was observed in most patients, and the LCA or AMCA was the common accompanying artery. In some patients these vessels were located on the dorsal side of the pancreas and not below it. Preoperative evaluation of this anatomy may be beneficial for lymph node dissection during left-sided hemicolectomy.
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Affiliation(s)
- K Murono
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Miyake
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - D Hojo
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Nozawa
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Kawai
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Hata
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - T Tanaka
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - T Nishikawa
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Y Shuno
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Sasaki
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - M Kaneko
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Emoto
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Ishii
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Sonoda
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Ishihara
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Right Colectomy with Extended D3 Mesenterectomy: Anterior and Posterior to the Mesenteric Vessels. Surg Technol Int 2019. [PMID: 31237343 DOI: 10.1007/s10353-019-0604-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND In right colectomy for cancer, complete mesocolic excision and D3 lymphadenectomy each leave behind lymphatic tissue anterior and posterior to the superior mesenteric vein (SMV) and artery (SMA). In this article, we present D3 extended mesenterectomy: a surgical technique that excises the lymphatic tissue en bloc with the right colectomy specimen. MATERIAL AND METHODS A 3D map of the mesentery of the right colon was reconstructed from staging CT-angiogram scans. The surgical technique of right colectomy with D3 extended mesenterectomy consisted of eight steps: 1) reveal the SMV and SMA; 2) isolate the ileocolic artery; 3) isolate the middle colic artery; 4) resolve the anterior mesenteric flap; 5) specimen de-vascularization; 6) colectomy; 7) resolve the posterior mesenteric flap; and 8) anastomosis. RESULTS One-hundred-seventy-six patients (77 men) 66 years of age were operated upon from February 2011 to January 2017. There were 169 adenocarcinomas: 16.0% Stage I, 49.1% Stage II, 33.7% Stage III, 1.2% Stage IV. Tumor locations were 50.6% cecum, 41.5% ascending colon, 4.5% hepatic flexure, and 2.3% transverse colon. Mean operating time was 200 minutes, blood loss 273 ml, and length of stay 7.9 days. There were 9 anastomotic leakages and 15 reoperations. One patient underwent small bowel resection due to SMA tear. There was no postoperative mortality. The mean number of lymph nodes per specimen (40.9) was comprised of 27.1 in the D2 volume and 13.8 in the D3 volume. The mean number of metastatic lymph nodes was 1.2 in the D2 volume and 0.13 in D3. There were 7 patients with lymph node metastasis in D3, 2 of whom had node metastasis solely within D3. CONCLUSION This study shows that 1.2% of patients would have been incorrectly diagnosed as Stage II if extended D3 mesenterectomy had not been performed. Similarly, lymph node metastases would have been left behind in 4.1% of patients if extended D3 mesenterectomy had not been performed.
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Semi-automated vs. manual 3D reconstruction of central mesenteric vascular models: the surgeon’s verdict. Surg Endosc 2019; 34:4890-4900. [DOI: 10.1007/s00464-019-07275-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 11/12/2019] [Indexed: 12/19/2022]
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