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Flemming S, Kollmann L, Widder A, Backhaus J, Lock JF, Nickel F, Wierlemann A, Wiegering A, Germer CT, Seyfried F. Proficiency in bariatric surgery may shorten the learning curve for minimally-invasive D2 gastrectomy. Langenbecks Arch Surg 2024; 409:299. [PMID: 39377929 PMCID: PMC11461774 DOI: 10.1007/s00423-024-03485-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 09/22/2024] [Indexed: 10/09/2024]
Abstract
INTRODUCTION Evidence from Asian studies suggests that minimally-invasive gastrectomy achieves equivalent oncological but improved perioperative outcomes compared to open surgery. Oncological gastric resections are less frequent in European countries. Index procedures may play a role for the learning curve of minimally-invasive gastrectomy. The aim of our study was to evaluate if skills acquired in bariatric surgery allow a safe and oncologically adequate implementation of minimally-invasive gastrectomy in a cohort of european patients. METHODS In this single-center retrospective study, all patients who received primary bariatric surgery between January 2015 and December 2018 and minimally-invasive surgery for gastric cancer treated from June 2019 to January 2023 were evaluated. Primary endpoints were operation time, lymph node yield and lymph node fractions. Secondary endpoints included postoperative complications and oncological outcomes. RESULTS Learning curves for two surgeons with 350 bariatric procedures and 44 minimally-invasive gastrectomies were analyzed. For bariatric surgery, the mean operation time decreased from initially 82 ± 27 to 45 ± 21 min and 118 ± 28 to 81 ± 36 min for sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB), while the complication rate remained within the international benchmark. For laparoscopic gastrectomy (n = 30), operation times decreased but then remained stable over time. Operation times for the robotic platform were longer (302 ± 60 vs. 390 ± 48 min; p < 0.001) with the learning curve remaining incomplete after 14 procedures. R0 status was achieved in 95.5% of patients; the mean number of lymph nodes retrieved was 37 ± 14 with no differences between the groups. Complete mesogastric excision was more frequently achieved during the later laparoscopic cases whereas it occurred earlier for the robotic group (p = 0.004). Perioperative morbidity was comparable to the European benchmark. Textbook outcome was achieved in 54.4% of the cases. CONCLUSION In summary, we could demonstrate a successful skill transfer from bariatric surgery to minimally-invasive laparoscopic oncological gastric surgery enabling safe and oncologically adequate minimally-invasive D2 gastrectomy in a central European patient collective.
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Affiliation(s)
- Sven Flemming
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, Center of Operative Medicine (ZOM), University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Lars Kollmann
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, Center of Operative Medicine (ZOM), University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Anna Widder
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, Center of Operative Medicine (ZOM), University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Joy Backhaus
- Department of Medical Education and Education Research, University of Wuerzburg, Wuerzburg, Germany
| | - Johan Friso Lock
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, Center of Operative Medicine (ZOM), University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Felix Nickel
- Department of General, Visceral, and Thoracic Surgery, University Medical Center Hamburg- Eppendorf, Hamburg, Germany
| | - Alexander Wierlemann
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, Center of Operative Medicine (ZOM), University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Armin Wiegering
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, Center of Operative Medicine (ZOM), University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Christoph-Thomas Germer
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, Center of Operative Medicine (ZOM), University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Florian Seyfried
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, Center of Operative Medicine (ZOM), University Hospital of Wuerzburg, Wuerzburg, Germany.
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Koh CH, Booker J, Choi D, Khan DZ, Layard Horsfall H, Sayal P, Marcus HJ, Prezerakos G. Learning Curve of Endoscopic Lumbar Discectomy - A Systematic Review and Meta-Analysis of Individual Participant and Aggregated Data. Global Spine J 2024:21925682241289901. [PMID: 39352790 DOI: 10.1177/21925682241289901] [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] [Indexed: 10/04/2024] Open
Abstract
STUDY DESIGN A systematic review and meta-analysis of individual participant and aggregated data. OBJECTIVES To define the learning curves of endoscopic discectomies using unified statistical methodologies. METHODS Searches returned 913 records, with 118 full-text articles screened. Studies of endoscopic lumbar spine surgery reporting outcomes by case order were included. Mixed-effects nonlinear, logistic, and beta meta-regressions prdwere conducted to define the learning curves. RESULTS 13 studies involving 864 patients among 15 surgeons were included in total. For transforaminal endoscopic discectomy, the estimated operating time for the first case was 95 min [CI: 87-104], and the estimated plateau was 66 minutes [CI: 51-81]. An estimated 21 cases [CI: 18-25] were required to overcome 80% of this deficit, but near-plateau performance was expected only after 59 cases [CI: 51-70]. The estimated risk of surgical complications on the first case was 25% [CI: 11%-46%], with an 80% reduction in relative risk requiring an estimated 41 cases. The expected postoperative VAS leg pain score after the first case was 2.7 [CI: 1.8-3.8], with an 80% improvement requiring an estimated 96 cases. Similar numbers were required to overcome the learning curves in interlaminar and biportal endoscopic discectomies. CONCLUSIONS Approximately 60 cases are required to achieve proficiency in endoscopic lumbar spine surgery, although the greatest part of the learning curve can be overcome with 20 cases. This should be considered when designing implementation programmes for surgeons and service providers that wish to incorporate endoscopic spinal surgery into their practice.
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Affiliation(s)
- Chan Hee Koh
- Queen Square Institute of Neurology, University College London, London, UK
- Neurosciences Department, Cleveland Clinic London, London, UK
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK
| | - James Booker
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK
| | - David Choi
- Queen Square Institute of Neurology, University College London, London, UK
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
| | - Danyal Zaman Khan
- Queen Square Institute of Neurology, University College London, London, UK
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK
| | - Hugo Layard Horsfall
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK
| | - Parag Sayal
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
| | - Hani J Marcus
- Queen Square Institute of Neurology, University College London, London, UK
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, London, UK
| | - George Prezerakos
- Queen Square Institute of Neurology, University College London, London, UK
- Neurosciences Department, Cleveland Clinic London, London, UK
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, UK
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Hwang J, Kim KY, Park SH, Cho M, Kim YM, Kim HI, Hyung WJ. Long-term Oncologic Outcomes of Robotic Total Gastrectomy for Advanced Gastric Cancer. J Gastric Cancer 2024; 24:451-463. [PMID: 39375059 PMCID: PMC11471327 DOI: 10.5230/jgc.2024.24.e38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/22/2024] [Accepted: 09/11/2024] [Indexed: 10/09/2024] Open
Abstract
PURPOSE Although laparoscopic distal gastrectomy has rapidly replaced open distal gastrectomy, laparoscopic total gastrectomy (LTG) is less frequently performed owing to technical difficulties. Robotic surgery could be an appropriate minimally invasive alternative to LTG because it alleviates the technical challenges posed by laparoscopic procedures. However, few studies have compared the oncological safety of robotic total gastrectomy (RTG) with that of LTG, especially for advanced gastric cancer (AGC). Herein, we aimed to assess the oncological outcomes of RTG for AGC and compare them with those of LTG. MATERIALS AND METHODS We retrospectively reviewed 147 and 204 patients who underwent RTG and LTG for AGC, respectively, between 2007 and 2020. Long-term outcomes were compared using inverse probability of treatment weighting (IPTW). RESULTS After IPTW, the 2 groups exhibited similar clinicopathological features. The 5-year overall survival was comparable between the 2 groups (88.5% [95% confidence interval {CI}, 79.4%-93.7%] after RTG and 87.3% [95% CI, 80.1%-92.0%]) after LTG; log-rank P=0.544). The hazard ratio (HR) for death after RTG compared with that after LTG was 0.73 (95% CI, 0.40-1.33; P=0.304). The 5-year relapse-free survival was also similar between the 2 groups (75.7% [95% CI, 65.2%-83.4%] after RTG and 76.4% [95% CI, 67.9%-83.0%] after LTG; log-rank P=0.850). The HR for recurrence after RTG compared with that after LTG was 0.93 (95% CI, 0.60-1.46; P=0.753). CONCLUSIONS Our findings revealed that RTG and LTG for AGC had similar long-term outcomes. RTG is an oncologically safe alternative to LTG and has technical advantages.
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Affiliation(s)
- Jawon Hwang
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Gastric Cancer Center, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea
| | - Ki-Yoon Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sung Hyun Park
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Gastric Cancer Center, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea
| | - Minah Cho
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Gastric Cancer Center, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea
| | - Yoo Min Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Gastric Cancer Center, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea
| | - Hyoung-Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Gastric Cancer Center, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea
| | - Woo Jin Hyung
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Gastric Cancer Center, Yonsei Cancer Center, Yonsei University Health System, Seoul, Korea
- Department of Faculty Surgery No. 1, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
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Visser MR, Voeten DM, Gisbertz SS, Ruurda JP, van Berge Henegouwen MI, van Hillegersberg R. Outcomes after gastrectomy according to the Gastrectomy Complications Consensus Group (GCCG) in the Dutch Upper GI Cancer Audit (DUCA). Gastric Cancer 2024; 27:1124-1135. [PMID: 38943030 PMCID: PMC11335793 DOI: 10.1007/s10120-024-01527-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 06/21/2024] [Indexed: 06/30/2024]
Abstract
BACKGROUND In 2019, the Gastrectomy Complications Consensus Group (GCCG) published a standardized set of complications aiming toward uniform reporting of post-gastrectomy complications. This study aimed to report outcomes after gastrectomy in the Netherlands according to GCCG definitions and compare them to previously reported national results and the European database reported by the GCCG. METHODS This nationwide, population-based cohort study included all patients undergoing gastrectomy for gastric cancer registered in the DUCA in 2020-2021. Postoperative morbidity and 30-day/in-hospital mortality were analyzed according to the GCCG definitions. For all patients, baseline characteristics and outcomes were compared with the GCCG cohort consisting of 27 European expert centers (GASTRODATA; 2017-2018). RESULTS In 2020-2021, 782 patients underwent gastrectomy in the Netherlands. Variation was seen in baseline characteristics between the Dutch and the GCCG cohort (N = 1349), most notably in minimally invasive surgery (80.6% vs 19.6%, p < 0.001). In the Netherlands, 223 (28.5%) patients developed a total of 407 complications, the most frequent being non-surgical infections (28.5%) and anastomotic leakage (13.4%). The overall complication and 30-day mortality rates were similar between the Dutch and GCCG cohort (28.5% vs 29.8%, p = 0.563; 3.7% vs 3.6%, p = 0.953). Higher surgical and endoscopic/radiologic reintervention rates were observed in the Netherlands compared to the GCCG cohort (10.7% vs 7.8%, p = 0.025; 10.9% vs 2.9%, p < 0.001). CONCLUSION Reporting outcomes according to the standardized GCCG definitions allows for international benchmarking. Postoperative outcomes were comparable between Dutch and GCCG cohorts, but both exceed the international benchmark for expert gastrectomy care, highlighting targets for national and international quality improvement.
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Affiliation(s)
- Maurits R Visser
- Department of Surgery, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
- Scientific Bureau, Dutch Institute for Clinical Auditing, Leiden, The Netherlands
| | - Daan M Voeten
- Department of Surgery, Amsterdam UMC Location Vrije Universiteit, Amsterdam, The Netherlands
- Cancer Treatment and Quality of Life, Cancer Center Amsterdam, Amsterdam, The Netherlands
- Department of Surgery, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
| | - Suzanne S Gisbertz
- Cancer Treatment and Quality of Life, Cancer Center Amsterdam, Amsterdam, The Netherlands
- Department of Surgery, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
| | - Jelle P Ruurda
- Department of Surgery, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Mark I van Berge Henegouwen
- Cancer Treatment and Quality of Life, Cancer Center Amsterdam, Amsterdam, The Netherlands
- Department of Surgery, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
| | - Richard van Hillegersberg
- Department of Surgery, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands.
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Chan KS, Lee J, Ong MW. Evaluating a Single Surgeon's Learning Curve for Laparoscopic Totally Extraperitoneal Repair of Inguinal Hernia with Telescopic Dissection: A Cumulative Sum Control Chart Analysis. J Laparoendosc Adv Surg Tech A 2024; 34:227-234. [PMID: 38285183 DOI: 10.1089/lap.2023.0418] [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: 01/30/2024] Open
Abstract
Background: Laparoscopic totally extraperitoneal (TEP) inguinal hernia repair (IHR) reduces risk of injury to intraperitoneal structures. Balloon dissection is more costly and has theoretical risk of injury to the surrounding structures compared with telescopic dissection (TD). This study aims to evaluate the learning curve (LC) for TEP IHR with TD of a single surgeon. Methods: This is a 3-year retrospective cohort study from January 2020 to December 2022 on patients who underwent elective laparoscopic TEP unilateral IHR with TD. Exclusion criteria were recurrent inguinal hernia. Cumulative sum (CUSUM) analysis was performed to evaluate the number of cases required to surmount the LC, that is, NLC for operating time (OT) and open conversion. One way analysis of variance was used to perform groupwise comparison. Results: There were 69 patients who underwent laparoscopic TEP unilateral IHR with TD. The median age was 58.0 years (range 24.0-80.0) and body mass index was 23.0 (range 18.6-30.0). Majority of the hernia was indirect (n = 48, 69.6%). The median OT was 70 minutes (range 35-210). Three cases (4.3%) had open conversion. One-year recurrence was 4.2% (n = 1/24). CUSUM analysis showed improvement in OT after the eighth case. However, this was followed by multiple inflection points with no apparent stabilization in OT. Pairwise comparison showed a decrease in OT between cases 18-36 and cases 37-54. There was no incidence of open conversion until the 56th case. Conclusion: Laparoscopic TEP IHR using TD is safe in the absence of a practor. A minimum of 36 cases is required to surmount the initial LC.
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Affiliation(s)
- Kai Siang Chan
- Department of General Surgery, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Jingwen Lee
- Department of General Surgery, Khoo Teck Puat Hospital, Singapore, Singapore
| | - Marc Weijie Ong
- Department of General Surgery, Khoo Teck Puat Hospital, Singapore, Singapore
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Cizmic A, Romic I, Balla A, Barabino N, Anania G, Baiocchi GL, Bakula B, Balagué C, Berlth F, Bintintan V, Bracale U, Egberts JH, Fuchs HF, Gisbertz SS, Gockel I, Grimminger P, van Hillegersberg R, Inaki N, Immanuel A, Korr D, Lingohr P, Mascagni P, Melling N, Milone M, Mintz Y, Morales-Conde S, Moulla Y, Müller-Stich BP, Nakajima K, Nilsson M, Reeh M, Sileri P, Targarona EM, Ushimaru Y, Kim YW, Markar S, Nickel F, Mitra AT. An international Delphi consensus for surgical quality assessment of lymphadenectomy and anastomosis in minimally invasive total gastrectomy for gastric cancer. Surg Endosc 2024; 38:488-498. [PMID: 38148401 PMCID: PMC10830761 DOI: 10.1007/s00464-023-10614-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/26/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND Minimally invasive total gastrectomy (MITG) is a mainstay for curative treatment of patients with gastric cancer. To define and standardize optimal surgical techniques and further improve clinical outcomes through the enhanced MITG surgical quality, there must be consensus on the key technical steps of lymphadenectomy and anastomosis creation, which is currently lacking. This study aimed to determine an expert consensus from an international panel regarding the technical aspects of the performance of MITG for oncological indications using the Delphi method. METHODS A 100-point scoping survey was created based on the deconstruction of MITG into its key technical steps through local and international expert opinion and literature evidence. An international expert panel comprising upper gastrointestinal and general surgeons participated in multiple rounds of a Delphi consensus. The panelists voted on the issues concerning importance, difficulty, or agreement using an online questionnaire. A priori consensus standard was set at > 80% for agreement to a statement. Internal consistency and reliability were evaluated using Cronbach's α. RESULTS Thirty expert upper gastrointestinal and general surgeons participated in three online Delphi rounds, generating a final consensus of 41 statements regarding MITG for gastric cancer. The consensus was gained from 22, 12, and 7 questions from Delphi rounds 1, 2, and 3, which were rephrased into the 41 statetments respectively. For lymphadenectomy and aspects of anastomosis creation, Cronbach's α for round 1 was 0.896 and 0.886, and for round 2 was 0.848 and 0.779, regarding difficulty or importance. CONCLUSIONS The Delphi consensus defined 41 steps as crucial for performing a high-quality MITG for oncological indications based on the standards of an international panel. The results of this consensus provide a platform for creating and validating surgical quality assessment tools designed to improve clinical outcomes and standardize surgical quality in MITG.
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Affiliation(s)
- Amila Cizmic
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
| | - Ivan Romic
- Department of Hepatobiliary Surgery & Liver Transplantation, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Andrea Balla
- Coloproctology and Inflammatory Bowel Disease Surgery Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicolò Barabino
- Department of Surgical Sciences & Integrated Diagnostic, University of Genoa, Genoa, Italy
| | - Gabriele Anania
- Department of Medical Science, University of Ferrara, 4121, Ferrara, Italy
| | - Gian Luca Baiocchi
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Branko Bakula
- Department of Surgery, University Hospital Sveti Duh, Zagreb, Croatia
| | - Carmen Balagué
- Department of General and Digestive Surgery, Hospital de la Santa Creu I Sant Pau, Autonomous University of Barcelona, Barcelona, Spain
| | - Felix Berlth
- Department of General, Visceral and Transplant Surgery, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Vasile Bintintan
- Department of Surgery, University Hospital Cluj Napoca, Cluj-Napoca, Romania
| | - Umberto Bracale
- General and Emergency Surgical Unit, Department of Medicine, Surgery and Dentistry, University of Salerno, AOU San Giovanni and Ruggi D'Aragona, Salerno, Italy
| | | | - Hans F Fuchs
- Department of General, Visceral, Cancer and Transplantation Surgery, University Hospital Cologne, Cologne, Germany
| | - Suzanne S Gisbertz
- Department of Surgery, Amsterdam UMC Location, University of Amsterdam, Amsterdam, The Netherlands
- Cancer Treatment and Quality of Life, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Ines Gockel
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Peter Grimminger
- Department of General, Visceral and Transplant Surgery, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Richard van Hillegersberg
- Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Noriyuki Inaki
- Department of Gastrointestinal Surgery/Breast Surgery, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Arul Immanuel
- Northern Oesophago-Gastric Unit, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, UK
| | - Daniel Korr
- Department of Surgery, Israelit Hospital, Hamburg, Germany
| | - Philipp Lingohr
- Department for General, Visceral, Thoracic and Vascular Surgery, University Hospital of Bonn, Bonn, Germany
| | - Pietro Mascagni
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Institute of Image-Guided Surgery, IHU-Strasbourg, Strasbourg, France
| | - Nathaniel Melling
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Marco Milone
- Department of Clinical Medicine and Surgery, University of Naples "Federico II", 80131, Naples, Italy
| | - Yoav Mintz
- Department of General Surgery, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Salvador Morales-Conde
- Department of General and Digestive Surgery, University Hospital Virgen Macarena, School of Medicine of the University of Seville, Seville, Spain
- Unit of General and Digestive Surgery, Hospital Quironsalud Sagrado Corazon, Seville, Spain
| | - Yusef Moulla
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Beat P Müller-Stich
- Department of Digestive Surgery, University Digestive Healthcare Center Basel, Basel, Switzerland
| | - Kiyokazu Nakajima
- Department of Next Generation Endoscopic Intervention, Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Magnus Nilsson
- Department of Clinical Science, Intervention and Technology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Matthias Reeh
- Department of General, Visceral and Vascular Surgery, Marienkrankenhaus, Hamburg, Germany
| | - Pierpaolo Sileri
- Coloproctology and Inflammatory Bowel Disease Surgery Unit, IRCCS San Raffaele Scientific Institute, Vita-Salute University, Milan, Italy
| | | | - Yuki Ushimaru
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Young-Woo Kim
- Center for Gastric Cancer, National Cancer Center, Goyang, Gyeonggi, Republic of Korea
| | - Sheraz Markar
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Felix Nickel
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Anuja T Mitra
- Department of Surgery & Cancer, Imperial College London, London, UK
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Chan KS, Oo AM. Establishing the Learning Curve of Laparoscopic and Robotic Distal Gastrectomy: a Systematic Review and Meta-Regression Analysis. J Gastrointest Surg 2023; 27:2946-2982. [PMID: 37658172 DOI: 10.1007/s11605-023-05812-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/04/2023] [Indexed: 09/03/2023]
Abstract
BACKGROUND Minimally invasive distal gastrectomy (MIDG) is non-inferior compared with open distal gastrectomy for gastric cancer. However, MIDG bears a learning curve (LC). This study aims to evaluate the number of cases required to surmount the LC (i.e. NLC) in MIDG. METHODS PubMed, Embase, Scopus, and the Cochrane Library were systematically searched from inception to August 2022 for studies which reported NLC in MIDG. NLC on reduced-port/single-port MIDG only were separately analysed. Poisson mean (95% confidence interval (CI)) was used to determine NLC. Negative binomial regression was used to compare NLC between laparoscopic distal gastrectomy (LDG) and robotic distal gastrectomy (RDG). RESULTS A total of 45 articles with 71 data sets (LDG n=47, RDG n=24) were analysed. There were 7776 patients in total (LDG n=5516, RDG n=2260). Majority of studies were conducted in East Asia (n=68/71). Majority (76.1%) of data sets used non-arbitrary methods of analyses. The overall NLC for RDG was significantly lower compared to LDG (RDG 22.4 (95% CI: 20.4-24.5); LDG 46.7 (95% CI: 44.1-49.4); incidence rate ratio 0.48, p<0.001). The median number of laparoscopic gastrectomy (LG) cases prior was 0 (interquartile range (IQR) 0-105) for LDG and 159 (IQR 101-305.3) for RDG. Meta-regression analysis did not show a significant impact prior experience in LG, extent of lymphadenectomy and intracorporeal vs extracorporeal anastomosis had on overall NLC for LDG and RDG. CONCLUSION NLC for RDG is shorter compared to LDG, but this may be due to prior experience in LG and ergonomic advantages of RDG.
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Affiliation(s)
- Kai Siang Chan
- Department of General Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433, Singapore.
| | - Aung Myint Oo
- Department of General Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
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