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Lombardi PM, Mazzola M, Veronesi V, Granieri S, Cioffi SPB, Baia M, Del Prete L, Bernasconi DP, Danelli P, Ferrari G. Learning curve of laparoscopic cholecystectomy: a risk-adjusted cumulative summation ( RA-CUSUM) analysis of six general surgery residents. Surg Endosc 2023; 37:8133-8143. [PMID: 37684403 DOI: 10.1007/s00464-023-10345-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/30/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Laparoscopic cholecystectomy (LapC) is one of the most frequently performed surgical procedures worldwide. Reaching technical competency in performing LapC is considered one essential task for young surgeons. Investigating the learning curve for LapC (LC-LapC) may provide important information regarding the learning process and guide the training pathway of residents, improving educational outcomes. The present study aimed to investigate LC-LapC among general surgery residents (GSRs). METHODS Operative surgical reports of consecutive patients undergoing LapC performed by GSRs attending the General Surgery Residency Program at the University of Milan were analysed. Data on patient- and surgery-related variables were obtained from the ICD-9-CM diagnosis codes and gathered. A multidimensional assessment of the LC was performed through Cumulative Sum (CUSUM) and Risk-Adjusted (RA)-CUSUM analysis. RESULTS 340 patients operated by 6 GSRs were collected. The CUSUM and RA-CUSUM graphs based on surgical failures allowed to distinguish two defined phases for all GSRs: an initial phase ending at the peak, so-called learning phase, followed by a phase in which there was a significant decrease in failure incidence, so-called proficiency phase. The learning phase was completed for all GSRs at most within 25 procedures, but the trend of the curves and the number of procedures needed to achieve technical competency varied among operators ranging between 7 and 25. CONCLUSIONS The present study suggested that at most 25 procedures might be sufficient to acquire technical competency in LapC. The variability in the number of procedures needed to complete the LC, ranging between 7 and 25, could be due to the heterogeneous scenarios in which LapC was performed, and deserves to be investigated through a prospective study involving a larger number of GSRs and institutions.
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Affiliation(s)
- Pietro Maria Lombardi
- Division of Minimally-Invasive Surgical Oncology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Piazza Ospedale Maggiore 3, 20162, Milan, Italy.
| | - Michele Mazzola
- Division of Minimally-Invasive Surgical Oncology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Piazza Ospedale Maggiore 3, 20162, Milan, Italy
| | - Valentina Veronesi
- Bicocca Bioinformatics Biostatistics and Bioimaging Center - B4, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Stefano Granieri
- General Surgery Unit, ASST-Brianza, Vimercate Hospital, Via Santi Cosma e Damiano 10, 20871, Vimercate, Italy
| | - Stefano Piero Bernardo Cioffi
- General Surgery and Trauma Team, ASST Niguarda, Piazza Ospedale Maggiore 3, 20162, Milan, Italy
- Department of Surgical Sciences, Sapienza University, Rome, Italy
| | - Marco Baia
- Sarcoma Service, Department of Surgery, IRCCS Fondazione Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Luca Del Prete
- IRCCS Fondazione Cà Granda Ospedale Maggiore Policlinico di Milan - General Surgery and Transplant Unit, Milan, Italy
- University of Milan - Translational Medicine PhD Program, Milan, Italy
| | - Davide Paolo Bernasconi
- Bicocca Bioinformatics Biostatistics and Bioimaging Center - B4, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Functional Department for Higher Education, Research, and Development, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Piergiorgio Danelli
- Department of Biomedical and Clinical Sciences, "Luigi Sacco" Hospital, University of Milan, Via Giovanni Battista Grassi 74, 20157, Milan, Italy
| | - Giovanni Ferrari
- Division of Minimally-Invasive Surgical Oncology, Niguarda Cancer Center, ASST Grande Ospedale Metropolitano Niguarda, Piazza Ospedale Maggiore 3, 20162, Milan, Italy
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Giani A, Veronesi V, Bertoglio CL, Mazzola M, Bernasconi DP, Grimaldi S, Gualtierotti M, Magistro C, Ferrari G. Multidimensional evaluation of the learning curve for laparoscopic complete mesocolic excision for right colon cancer: a risk-adjusted cumulative summation analysis. Colorectal Dis 2022; 24:577-586. [PMID: 35108445 DOI: 10.1111/codi.16075] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 01/17/2022] [Accepted: 01/23/2022] [Indexed: 02/08/2023]
Abstract
AIM Despite the suggested potential benefit of complete mesocolic excision (CME) for right-sided colon cancer (RCC) for patient survival, concerns about its safety and feasibility have contributed to delayed acceptance of the procedure, especially when performed by a minimally invasive approach. Thus, the aim of this work was to evaluate the actual learning curve (LC) of laparoscopic CME for experienced colorectal surgeons. METHOD Prospectively collected data for consecutive patients undergoing laparoscopic CME for RCC between October 2015 and January 2021 at our institution, operated on by experienced surgeons, were analysed. A multidimensional assessment of the LC was performed through cumulative sum (CUSUM) and risk-adjusted (RA) CUSUM analysis. RESULTS Two hundred and two patients operated by on by three surgeons were considered. The CUSUM graphs based on operating time showed one peak of the curve between 17 and 27 cases. The CUSUM graphs based on surgical failure showed one peak of the curve between 20 and 24 cases The RA-CUSUM curve also showed one preeminent peak at 24-33 cases. Based on the CUSUM and RA-CUSUM analyses all the surgeons reached proficiency in 24-33 cases. CONCLUSIONS Our study showed that an experienced minimally invasive colorectal surgeon acquires proficiency in laparoscopic CME for RCC after performing 24-33 cases.
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Affiliation(s)
- Alessandro Giani
- Division of Minimally-invasive Surgical Oncology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Valentina Veronesi
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre - B4, School of Medicine and Surgery, University of Milan - Bicocca, Monza, Italy
| | - Camillo Leonardo Bertoglio
- Division of Minimally-invasive Surgical Oncology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Michele Mazzola
- Division of Minimally-invasive Surgical Oncology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Davide Paolo Bernasconi
- Bicocca Bioinformatics Biostatistics and Bioimaging Centre - B4, School of Medicine and Surgery, University of Milan - Bicocca, Monza, Italy.,Department of Advanced Training Research and Development, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Simona Grimaldi
- Division of Minimally-invasive Surgical Oncology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Monica Gualtierotti
- Division of Minimally-invasive Surgical Oncology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Carmelo Magistro
- Division of Minimally-invasive Surgical Oncology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Giovanni Ferrari
- Division of Minimally-invasive Surgical Oncology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Affiliation(s)
- Bo Tang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006 Jiangxi China
| | - Yahang Liang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006 Jiangxi China
| | - Jun Shi
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006 Jiangxi China
| | - Taiyuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006 Jiangxi China
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Wang M, Meng L, Cai Y, Li Y, Wang X, Zhang Z, Peng B. Learning Curve for Laparoscopic Pancreaticoduodenectomy: a CUSUM Analysis. J Gastrointest Surg 2016; 20:924-35. [PMID: 26902090 DOI: 10.1007/s11605-016-3105-3] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 02/08/2016] [Indexed: 01/31/2023]
Abstract
BACKGROUND Laparoscopic pancreaticoduodenectomy (LPD), an advanced minimally invasive technique, has demonstrated advantages to open pancreaticoduodenectomy (OPD). However, this complex procedure requires a relatively long training period to ensure technical proficiency. This study was therefore designed to analyze the learning curve for LPD. METHODS From October 2010 to September 2015, 63 standard pancreaticoduodenectomy procedures were to be performed laparoscopically by a single surgeon at the Department of Pancreatic Surgery, West China Hospital, Sichuan University, China. After applying the inclusion and exclusion criteria, a total of 57 patients were included in the study. Data for all the patients, including preoperative, intraoperative, and postoperative variables, were prospectively collected and analyzed. The learning curve for LPD was evaluated using both cumulative sum (CUSUM) and risk-adjusted CUSUM (RA-CUSUM) methods. All of the variables among the learning curve phases were compared. RESULTS Based on the CUSUM and the RA-CUSUM analyses, the learning curve for LPD was grouped into three phases: phase I was the initial learning period (cases 1-11), phase II represented the technical competence period (cases 12-38), and phase III was regarded as the challenging period (cases 39-57). The operative time, intraoperative blood loss, and postoperative ICU demand significantly decreased with the learning curve. More lymph nodes were collected after the initial learning period. There were no significant differences in terms of postoperative complications or the 30-day mortality among the three phases. More challenging cases were encountered in phase III. CONCLUSIONS According to this study, the learning curve for LPD consisted of three phases. Conservatively, to attain technical competence for performing LPD, a minimum of 40 cases are required for laparoscopic surgeons with a degree of laparoscopic experience.
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Affiliation(s)
- Mingjun Wang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan, 610041, China
| | - Lingwei Meng
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan, 610041, China
| | - Yunqiang Cai
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan, 610041, China
| | - Yongbin Li
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan, 610041, China
| | - Xin Wang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan, 610041, China
| | - Zhaoda Zhang
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan, 610041, China.
| | - Bing Peng
- Department of Pancreatic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan, 610041, China.
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