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Prasath V, Quinn PL, Arjani S, Li S, Oliver JB, Mahmoud O, Jaloudi M, Hajifathalian K, Chokshi RJ. Locally Advanced Gastric Cancer Management: A Cost-Effectiveness Analysis. Am Surg 2024; 90:1268-1278. [PMID: 38225880 DOI: 10.1177/00031348241227180] [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] [Indexed: 01/17/2024]
Abstract
Across the nation, patients with locally advanced gastric cancer (LAGC) are managed with modalities including upfront surgery (US) and perioperative chemotherapy (PCT). Preoperative therapies have demonstrated survival benefits over US and thus long-term outcomes are expected to vary between the options. However, as these 2 modalities continue to be regularly employed, we sought to perform a decision analysis comparing the costs and quality-of-life associated with the treatment of patients with LAGC to identify the most cost-effective option. We designed a decision tree model to investigate the survival and costs associated with the most commonly utilized management modalities for LAGC in the United States: US and PCT. The tree described costs and treatment strategies over a 6-month time horizon. Costs were derived from 2022 Medicare reimbursement rates using the third-party payer perspective for physicians and hospitals. Effectiveness was represented using quality-adjusted life-years (QALYs). One-way, two-way, and probabilistic sensitivity analyses were utilized to test the robustness of our findings. PCT was the most cost-effective treatment modality for patients with LAGC over US with a cost of $40,792.16 yielding 3.11 QALYs. US has a cost of $55,575.57 while yielding 3.15 QALYs; the incremental cost-effectiveness ratio (ICER) was $369,585.25. One-way and two-way sensitivity analyses favored PCT in all variations of variables across their standard deviations. Across 100,000 Monte Carlo simulations, 100% of trials favored PCT. In our model simulating patients with LAGC, the most cost-effective treatment strategy was PCT. While US demonstrated improved QALYs over PCT, the associated cost was too great to justify its use.
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Affiliation(s)
- Vishnu Prasath
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
- Department of Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Patrick L Quinn
- Department of Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Simran Arjani
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
- Department of Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - Sharon Li
- Division of Hematology/Oncology, Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Joseph B Oliver
- Department of Surgery, East Orange Veterans Affairs Medical Center, East Orange, NJ, USA
| | - Omar Mahmoud
- Department of Radiation Oncology, Baptist MD Anderson, Jacksonville, FL, USA
| | - Mohammed Jaloudi
- Division of Hematology/Oncology, Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
- Division of Medical Oncology, Scripps MD Anderson Cancer Center, La Jolla, CA, USA
| | - Kaveh Hajifathalian
- Division of Gastroenterology, Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Ravi J Chokshi
- Division of Surgical Oncology, Department of Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA
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Shi S, Lin C, Zhou J, Wei L, Chen M, Zhang J, Cao K, Fan Y, Huang B, Luo Y, Feng ST. Development and validation of a deep learning radiomics model with clinical-radiological characteristics for the identification of occult peritoneal metastases in patients with pancreatic ductal adenocarcinoma. Int J Surg 2024; 110:2669-2678. [PMID: 38445459 DOI: 10.1097/js9.0000000000001213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 02/05/2024] [Indexed: 03/07/2024]
Abstract
BACKGROUND Occult peritoneal metastases (OPM) in patients with pancreatic ductal adenocarcinoma (PDAC) are frequently overlooked during imaging. The authors aimed to develop and validate a computed tomography (CT)-based deep learning-based radiomics (DLR) model to identify OPM in PDAC before treatment. METHODS This retrospective, bicentric study included 302 patients with PDAC (training: n =167, OPM-positive, n =22; internal test: n =72, OPM-positive, n =9: external test, n =63, OPM-positive, n =9) who had undergone baseline CT examinations between January 2012 and October 2022. Handcrafted radiomics (HCR) and DLR features of the tumor and HCR features of peritoneum were extracted from CT images. Mutual information and least absolute shrinkage and selection operator algorithms were used for feature selection. A combined model, which incorporated the selected clinical-radiological, HCR, and DLR features, was developed using a logistic regression classifier using data from the training cohort and validated in the test cohorts. RESULTS Three clinical-radiological characteristics (carcinoembryonic antigen 19-9 and CT-based T and N stages), nine HCR features of the tumor, 14 DLR features of the tumor, and three HCR features of the peritoneum were retained after feature selection. The combined model yielded satisfactory predictive performance, with an area under the curve (AUC) of 0.853 (95% CI: 0.790-0.903), 0.845 (95% CI: 0.740-0.919), and 0.852 (95% CI: 0.740-0.929) in the training, internal test, and external test cohorts, respectively (all P <0.05). The combined model showed better discrimination than the clinical-radiological model in the training (AUC=0.853 vs. 0.612, P <0.001) and the total test (AUC=0.842 vs. 0.638, P <0.05) cohorts. The decision curves revealed that the combined model had greater clinical applicability than the clinical-radiological model. CONCLUSIONS The model combining CT-based DLR and clinical-radiological features showed satisfactory performance for predicting OPM in patients with PDAC.
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Affiliation(s)
- Siya Shi
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University
| | - Chuxuan Lin
- Medical AI Lab, School of Biomedical Engineering
- Marshall Laboratory of Biomedical Engineering, Shenzhen University
| | - Jian Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Department of Radiology, Sun Yat-sen University Cancer Center, Guangzhou
- South China Hospital, Medical School, Shenzhen University
| | - Luyong Wei
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University
| | - Mingjie Chen
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University
| | - Jian Zhang
- Shenzhen University Medical School
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, People's Republic of China
| | - Kangyang Cao
- Medical AI Lab, School of Biomedical Engineering
- Marshall Laboratory of Biomedical Engineering, Shenzhen University
| | - Yaheng Fan
- Medical AI Lab, School of Biomedical Engineering
- Marshall Laboratory of Biomedical Engineering, Shenzhen University
| | - Bingsheng Huang
- Medical AI Lab, School of Biomedical Engineering
- Marshall Laboratory of Biomedical Engineering, Shenzhen University
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, People's Republic of China
| | - Yanji Luo
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University
| | - Shi-Ting Feng
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University
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Zhang S, Hu Q, Chen X, Zhou N, Huang Q, Tan S, Su M, Gou H. 68Ga-FAPI-04 positron emission tomography/CT and laparoscopy for the diagnosis of occult peritoneal metastasis in newly diagnosed locally advanced gastric cancer: study protocol of a single-centre prospective cohort study. BMJ Open 2024; 14:e075680. [PMID: 38643004 PMCID: PMC11033661 DOI: 10.1136/bmjopen-2023-075680] [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: 05/15/2023] [Accepted: 03/22/2024] [Indexed: 04/22/2024] Open
Abstract
INTRODUCTION Accurate baseline clinical staging is critical to inform treatment decision-making for patients with gastric cancers. Peritoneal metastasis (PM) is the most common form of metastasis in gastric cancer and mainly diagnosed by diagnostic laparoscopy and peritoneal lavage evaluation. However, diagnostic laparoscopy is invasive and less cost-effective. It is urgent to develop a safe, fast and non-invasive functional imaging method to verify the peritoneal metastasis of gastric cancer. The aim of our study was to evaluate the proportion of patients in whom 68Ga-FAPI-04 positron emission tomography/CT (PET/CT) led to a change in treatment strategy and to assess the diagnostic accuracy of 68Ga-FAPI-04 PET/CT for the detection of occult peritoneal metastasis compared with laparoscopic exploration. METHODS AND ANALYSIS In this single-centre, prospective diagnostic test accuracy study, a total of 48 patients with locally advanced gastric or gastro-oesophageal junction adenocarcinoma (cT4a-b, N0-3, M0, based on CT images) who are considering radical tumour surgery will be recruited. All participants will undergo 68Ga-FAPI-04 PET/CT before the initiation of laparoscopic exploration. The primary outcome is the proportion of patients with occult peritoneal metastatic lesions detected by 68Ga-FAPI-04 PET/CT, leading to a change in therapy strategy. The secondary outcomes include the diagnostic performance of 68Ga-FAPI-04 PET/CT for occult peritoneal metastasis, including sensitivity, specificity, accuracy, positive predictive value and negative predictive value. ETHICS AND DISSEMINATION The study protocol was approved by the Ethics Committee of West China Hospital, Sichuan University (2022-1484). Study results will be presented at public and scientific conferences and in peer-reviewed journals. TRIAL REGISTRATION NUMBER ChiCTR2300067591.
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Affiliation(s)
- Shunyu Zhang
- Department of Medical Oncology, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Gastric Cancer Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Qiancheng Hu
- Department of Medical Oncology, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Gastric Cancer Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Xinchuan Chen
- Department of Hematology, Sichuan University, Chengdu, Sichuan, China
| | - Nan Zhou
- Department of Medical Oncology, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Gastric Cancer Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Qiyue Huang
- Department of Medical Oncology, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Gastric Cancer Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Sirui Tan
- Department of Medical Oncology, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Gastric Cancer Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
| | - Minggang Su
- Department of Nuclear Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Hongfeng Gou
- Department of Medical Oncology, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
- Gastric Cancer Center, Sichuan University West China Hospital, Chengdu, Sichuan, China
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Feng QX, Zhu ZN, Li Q, Liu XS. Dual-energy CT quantitative parameters to evaluate occult peritoneal metastasis in advanced gastric cancer preoperatively. Abdom Radiol (NY) 2024:10.1007/s00261-024-04303-x. [PMID: 38634880 DOI: 10.1007/s00261-024-04303-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/14/2024] [Accepted: 03/20/2024] [Indexed: 04/19/2024]
Abstract
PURPOSE To explore whether dual-energy CT (DECT) quantitative parameters could provide analytic value for the diagnosis of patients with occult peritoneal metastasis (OPM) in advanced gastric cancer preoperatively. MATERIALS AND METHODS This retrospective study included 219 patients with advanced gastric cancer and DECT scans. The patient's clinical data and DECT related iodine concentration (IC) parameters and effective atomic number (Zeff) were collated and analyzed among noun-peritoneal metastasis (NPM), OPM and radiologically peritoneal metastasis (RPM) groups. The predictive performance of the DECT parameters was compared with that of the conventional CT features and clinical characteristics through evaluating area under curve of the precision-recall (AUC-PR), F1 score, balanced accuracy, sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV). RESULTS Borrmann IV type diagnosed on CT and serum tumor indicator CA125 index were statistically different between the NPM and OPM groups. DECT parameters included IC, normalized IC (NIC), and Zeff of PM group were lower than the NPM group. The DECT predictive nomogram combined three independent DECT parameters produced a better diagnostic performance than the conventional CT feature Borrmann IV type and serum CA125 index in AUC-PR with 0.884 vs 0.368 vs 0.189, but similar to the combined indicator which was based on the DECT parameters, the conventional CT feature, and serum CA125 index in AUC-PR with 0.884 vs 0.918. CONCLUSION The lower quantitative NIC, IC ratio, and Zeff on DECT was associated with peritoneal metastasis in advanced gastric cancer and was promising to identify patients with OPM noninvasively.
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Affiliation(s)
- Qiu-Xia Feng
- Department of Radiology, The First Affiliated Hospital With Nanjing Medical University, No. 300, Guangzhou Road, Nanjing, 210009, Jiangsu Province, China
| | - Zhen-Ning Zhu
- Department of Radiology, The First Affiliated Hospital With Nanjing Medical University, No. 300, Guangzhou Road, Nanjing, 210009, Jiangsu Province, China
| | - Qiong Li
- Department of Radiology, The First Affiliated Hospital With Nanjing Medical University, No. 300, Guangzhou Road, Nanjing, 210009, Jiangsu Province, China
| | - Xi-Sheng Liu
- Department of Radiology, The First Affiliated Hospital With Nanjing Medical University, No. 300, Guangzhou Road, Nanjing, 210009, Jiangsu Province, China.
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Halle-Smith JM, Bage T, Kamarajah SK, Siddaiah-Subramanya M, Pande R, Whiting JL, Griffiths EA. A preoperative predictive tool to assess the need for staging laparoscopy in oesophagogastric cancer patients. Ann R Coll Surg Engl 2024; 106:369-376. [PMID: 37642164 PMCID: PMC10981985 DOI: 10.1308/rcsann.2022.0140] [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] [Accepted: 10/26/2022] [Indexed: 08/31/2023] Open
Abstract
INTRODUCTION Staging laparoscopy (SL) has become commonplace in the preoperative staging pathway for oesophagogastric (OG) cancer. SL is often performed before curative treatment to examine for macroscopic peritoneal metastases (PM) or positive peritoneal cytology (PPC). The aim of this study was to develop an objective risk scoring system to predict both PM and PPC at SL. METHODS A prospectively collected and maintained database of all OG cancer patients treated between 2006 and 2020 was reviewed. Univariate and multivariate analyses were performed to identify risk factors for both PM and PPC at SL. A risk score was produced for both PM and PPC, and then validated internally. RESULTS Among 968 patients who underwent SL, 96 (9.9%) had PM and 81 (8.4%) had PPC at SL. Tumour site (p < 0.001), computed tomography (CT) T stage (p < 0.001) and N stage (p = 0.029) were significantly associated with PM at SL (p < 0.001). Tumour site (p < 0.001), biopsy histology (p = 0.041), CT T stage (p < 0.001) and N stage (p < 0.001) were significantly associated with PPC. The risk scoring model for PM included cancer site and CT T stage. This was successfully tested on the validation set (area under the receiver operating characteristic [AUROC] = 0.730). The risk scoring model for PPC included cancer site, CT T and N stage. This was successfully tested on the validation set (AUROC = 0.773). CONCLUSIONS The current risk scores are valid tools with which to predict the risk PM and PPC in patients undergoing SL for OG cancer and may help to avoid subjecting patients to unnecessary SL.
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Affiliation(s)
| | - T Bage
- Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, UK
| | | | | | - R Pande
- Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, UK
| | - JL Whiting
- Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, UK
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Liu Z, Tian H, Zhu Z. Application of Circulating Tumor Cells and Interleukin-6 in Preoperative Prediction of Peritoneal Metastasis of Advanced Gastric Cancer. J Inflamm Res 2023; 16:3033-3047. [PMID: 37497064 PMCID: PMC10366674 DOI: 10.2147/jir.s414786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 06/16/2023] [Indexed: 07/28/2023] Open
Abstract
Background The purpose of this study was to explore the clinical significance of circulating tumor cells (CTCs) and cytokines in peripheral blood in preoperative prediction of peritoneal metastasis (PM) in advanced gastric cancer (AGC). Methods The clinicopathological characteristics of 282 patients with AGC were retrospectively analyzed. The patients were divided into training and validation groups according to the time of receiving treatment. We used univariate analysis and multivariate logistic regression analysis to screen out the independent risk factors of PM in AGC. Then, we incorporated independent risk factors into the nomogram, and evaluated the discriminative ability. Results The levels of CTCs and interleukin-6 (IL-6) of AGC patients with PM were higher than those without PM (P<0.05). Moreover, the levels of CTCs and IL-6 in the occult peritoneal metastasis (OPM) group and the CT-positive PM group were higher than those in the negative PM (P<0.05). Multivariate logistic regression analysis showed that IL-6 > 12.22 pg/mL, CTCs > 4/5mL, CA724 > 6 IU/mL, CA125 > 35 U/mL and tumor size > 5 cm were independent risk factors for PM of AGC. The area under the ROC curve of the nomogram were 0.898 and 0.926 in the training and validation sets, respectively. The clinical decision curve showed that the nomogram had good clinical utility. Conclusion CTCs and IL-6 in peripheral blood are promising biomarkers for predicting the risk of PM in AGC. The nomogram constructed from five risk factors can effectively assess the risk of PM in AGC patients individually.
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Affiliation(s)
- Zitao Liu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People’s Republic of China
| | - Huakai Tian
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People’s Republic of China
| | - Zhengming Zhu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People’s Republic of China
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Ayoub F, Chapman CG, Chen H, Setia N, Roggin K, Siddiqui UD. Endoscopic Ultrasound Predicts Risk of Occult Intra-Abdominal Metastases in Localized Gastric Cancer: A Validation Study. Gastroenterology Res 2023; 16:9-16. [PMID: 36895700 PMCID: PMC9990533 DOI: 10.14740/gr1589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 01/09/2023] [Indexed: 03/11/2023] Open
Abstract
Background In gastric cancer (GC) patients without imaging evidence of distant metastasis, diagnostic staging laparoscopy (DSL) is recommended to detect radiographically occult peritoneal metastasis (M1). DSL carries a risk for morbidity and its cost-effectiveness is unclear. Use of endoscopic ultrasound (EUS) to improve patient selection for DSL has been proposed but not validated. We aimed to validate an EUS-based risk classification system predicting risk for M1 disease. Methods We retrospectively identified all GC patients without positron emission tomography (PET)/computed tomography (CT) evidence of distant metastasis who underwent staging EUS followed by DSL between 2010 and 2020. T1-2, N0 disease was EUS "low-risk"; T3-4 and/or N+ disease was "high-risk". Results A total of 68 patients met inclusion criteria. DSL identified radiographically occult M1 disease in 17 patients (25%). Most patients had EUS T3 tumors (n = 59, 87%) and 48 (71%) patients were node-positive (N+). Five (7%) patients were classified EUS "low-risk" and 63 (93%) were classified "high-risk". Of 63 "high-risk" patients, 17 (27%) had M1 disease. The ability of "low-risk" EUS to predict M0 disease at laparoscopy was 100% and DSL would have been avoided in five patients (7%). This stratification algorithm showed a sensitivity of 100% (95% confidence interval (CI): 80.5-100%) and a specificity of 9.8% (95% CI: 3.3-21.4%). Conclusions Use of an EUS-based risk classification system in GC patients without imaging evidence of metastasis helps identify a subset of patients at low-risk for laparoscopic M1 disease who may avoid DSL and proceed directly to neoadjuvant chemotherapy or resection with curative intent. Larger, prospective studies are needed to validate these findings.
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Affiliation(s)
- Fares Ayoub
- Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Christopher G Chapman
- Center for Endoscopic Research and Therapeutics (CERT), The University of Chicago Medicine, Chicago, IL 60637, USA
| | - Heather Chen
- Department of Pathology, University of Chicago Medicine, IL 60637, USA
| | - Namrata Setia
- Department of Pathology, University of Chicago Medicine, IL 60637, USA
| | - Kevin Roggin
- Department of Surgery, University of Chicago Medicine, IL 60637, USA
| | - Uzma D Siddiqui
- Center for Endoscopic Research and Therapeutics (CERT), The University of Chicago Medicine, Chicago, IL 60637, USA
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Romero-peña M, Suarez L, Valbuena DE, Rey Chaves CE, Conde Monroy D, Guevara R. Laparoscopic and open gastrectomy for locally advanced gastric cancer: a retrospective analysis in Colombia. BMC Surg 2023; 23:19. [PMID: 36703124 PMCID: PMC9878750 DOI: 10.1186/s12893-023-01901-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 01/02/2023] [Indexed: 01/27/2023] Open
Abstract
INTRODUCTION Radical gastrectomy has traditionally been the pillar treatment with curative intent for malignant tumors of the stomach. The safety of the laparoscopic approach for advanced gastric cancer (AGC) is still under debate. In our institution, laparoscopic gastrectomy is the most performed approach. OBJECTIVE Our aim is to describe the experience of a high-volume center in the treatment of AGC in Colombia and to analyze the short-term results and the overall survival rate at 1, 3, and 5 years comparing the open and laparoscopic approaches. METHODS A cross-sectional retrospective study of patients who underwent gastrectomy for advanced gastric cancer by open or laparoscopic approaches were performed. A Will-Coxon Mann Whitney test was performed in terms of lymph node status and surgical approach. Survival analysis was performed using the Kaplan-Meier method for overall survival at 1, 3, and 5 years. An initial log-rank test was performed to test the relationships between the operative variables and overall survival, the statistical value was accepted if p < 0.20. Data with an initial statistical relationship in the log-rank test were included in a secondary analysis using multivariate Cox proportional regression, variables with a value of p < 0.05 were considered statistically significant. RESULTS 310 patients met the inclusion criteria. 89% underwent laparoscopic gastrectomy and 10.9% open gastrectomy. The resection margins were negative at 93.5% and the In terms of lymph node dissection, the median lymph nodes extracted was 20 (12;37), with statistically significant differences between the approaches in favor of the laparoscopic approach (Median 21 vs 12; z = - 2.19, p = 0.02). The survival rate was at 1, 3, and 5 years of 84.04%, 66.9%, and 65.47% respectively. The presence of complications and the ICU requirement have a negative impact on survival at 1 year (p 0.00). CONCLUSION A laparoscopic approach is safe with acceptable morbidity and mortality rates for treating gastric cancer. D2 Lymphadenectomy could be performed successfully in a laparoscopic approach in a high-volume center and a properly standardized technique. Major postoperative morbidity with intensive care unit requirement seems to influence overall survival rates.
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Affiliation(s)
| | - Liliana Suarez
- Clínica Universitaria Colombia, Bogotá D.C, 110111 Colombia
| | | | - Carlos Eduardo Rey Chaves
- grid.41312.350000 0001 1033 6040School of Medicine, Pontificia Universidad Javeriana, Carrera 6A# 51A - 48, Bogotá D.C, 110111 Colombia
| | - Danny Conde Monroy
- grid.412191.e0000 0001 2205 5940Hospital Universitario Mayor - Méderi, Universidad del Rosario, Bogotá D.C, 110111 Colombia
| | - Raúl Guevara
- Clínica Universitaria Colombia, Bogotá D.C, 110111 Colombia
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SAKAMOTO E, RAMOS MFKP, PEREIRA MA, DIAS AR, RIBEIRO U, ZILBERSTEIN B, NAHAS SC. STAGING LAPAROSCOPY IS STILL A VALUABLE TOOL FOR OPTIMAL GASTRIC CANCER MANAGEMENT. ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA : ABCD = BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY 2023; 35:e1700. [PMID: 36629683 PMCID: PMC9830676 DOI: 10.1590/0102-672020220002e1700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 08/30/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Complete surgical resection is the main determining factor in the survival of advanced gastric cancer patients, but is not indicated in metastatic disease. The peritoneum is a common site of metastasis and preoperative imaging techniques still fail to detect it. AIM The aim of this study was to evaluate the role of staging laparoscopy in the staging of advanced gastric cancer patients in a Western tertiary cancer center. METHODS A total of 130 patients with gastric adenocarcinoma who underwent staging laparoscopy from 2009 to 2020 were evaluated from a prospective database. Clinicopathological characteristics were analyzed to identify factors associated with the presence of peritoneal metastasis and were also evaluated the accuracy and strength of agreement between computed tomography and staging laparoscopy in detecting peritoneal metastasis and the change in treatment strategy after the procedure. RESULTS The peritoneal metastasis was identified in 66 (50.76%) patients. The sensitivity, specificity, and accuracy of computed tomography in detecting peritoneal metastasis were 51.5, 87.5, and 69.2%, respectively. According to the Kappa coefficient, the concordance between staging laparoscopy and computed tomography was 38.8%. In multivariate analysis, ascites (p=0.001) and suspected peritoneal metastasis on computed tomography (p=0.007) were statistically correlated with peritoneal metastasis. In 40 (30.8%) patients, staging and treatment plans changed after staging laparoscopy (32 patients avoided unnecessary laparotomy, and 8 patients, who were previously considered stage IVb by computed tomography, were referred to surgical treatment). CONCLUSION The staging laparoscopy demonstrated an important role in the diagnosis of peritoneal metastasis, even with current advances in imaging techniques.
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Affiliation(s)
- Erica SAKAMOTO
- Universidade de São Paulo, University Hospital, Department of Gastroenterology of Faculty of Medicine – São Paulo (SP), Brazil
| | | | - Marina Alessandra PEREIRA
- Universidade de São Paulo, University Hospital, Department of Gastroenterology of Faculty of Medicine – São Paulo (SP), Brazil
| | - André Roncon DIAS
- Universidade de São Paulo, University Hospital, Department of Gastroenterology of Faculty of Medicine – São Paulo (SP), Brazil
| | - Ulysses RIBEIRO
- Universidade de São Paulo, University Hospital, Department of Gastroenterology of Faculty of Medicine – São Paulo (SP), Brazil
| | - Bruno ZILBERSTEIN
- Universidade de São Paulo, University Hospital, Department of Gastroenterology of Faculty of Medicine – São Paulo (SP), Brazil
| | - Sergio Carlos NAHAS
- Universidade de São Paulo, University Hospital, Department of Gastroenterology of Faculty of Medicine – São Paulo (SP), Brazil
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Guan G, Li Z, Wang Q, Ying X, Shan F, Li Z. Risk factors associated with peritoneal carcinomatosis of gastric cancer in staging laparoscopy: A systematic review and meta-analysis. Front Oncol 2022; 12:955181. [PMID: 36387230 PMCID: PMC9650136 DOI: 10.3389/fonc.2022.955181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 09/26/2022] [Indexed: 11/30/2022] Open
Abstract
Background The optimal indications of staging laparoscopy in gastric cancer to detect peritoneal carcinomatosis are still controversial. We performed this systematic review and meta-analysis to quantify the relevance of the preoperative factors with peritoneal carcinomatosis to explore the indications of staging laparoscopy. Materials and methods Systematic searches were conducted using Medline, Embase, and the Cochrane Library in December 2021. On the basis of calculating the odds ratio (OR) of each factor, we quantified the association between the risk factors and peritoneal carcinomatosis such as clinical T/N stage, Borrmann type, and tumor markers, using meta-analysis with a random-effects model. Results A total of 21 case-control studies and one cohort study were obtained. T stage, N stage, and differentiation degree were most widely studied, with OR values of 2.96 (95% CI: 1.87–4.69), 1.22 (95% CI: 0.86–1.73), and 1.91 (95% CI: 1.42–2.56), respectively. Among all the factors, elevated CA125 (OR = 19.45, 95% CI: 4.71–80.30), Borrmann type IV (OR = 7.68, 95% CI: 3.62–16.27), and large tumor diameter (OR = 5.12, 95% CI: 2.55–10.31) had the highest OR. In particular, CA125 had the best predictability for peritoneal carcinomatosis but was only mentioned by three articles. Conclusions There was a cognitive gap between the awareness and importance of risk factors for peritoneal carcinomatosis. In addition to T4 stage, patients with factors with high OR, such as Borrmann type IV, large tumor diameter, and elevated CA125, should undergo staging laparoscopy.
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Li Z, Guan G, Liu Z, Li J, Ying X, Shan F, Li Z. Predicting peritoneal carcinomatosis of gastric cancer: A simple model to exempt low-risk patients from unnecessary staging laparoscopy. Front Surg 2022; 9:916001. [PMID: 35937608 PMCID: PMC9349356 DOI: 10.3389/fsurg.2022.916001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/28/2022] [Indexed: 11/21/2022] Open
Abstract
Background Peritoneal carcinomatosis (PC) of gastric cancer indicates a poor outcome and is mainly diagnosed by staging laparoscopy (SL). This study was designed to develop a risk stratification model based on the number of risk factors to exempt low-risk patients from unnecessary SL. Methods This was a retrospective cohort study based on a single institution between January 2015 and December 2019. SL is indicated for patients of advanced locoregional stage, and clinicopathologic characteristics of 535 consecutive patients were included. PC-associated variables were identified by logistic regression analysis. A risk stratification model based on the number of risk factors was constructed, and we defined its predictive value with a receiver operating characteristic (ROC) curve and negative predictive value. Results In total, 15.9% of included patients were found to have PC during SL. Borrmann type IV, elevated CA125, and tumour diameter ≥5 cm were independent risk factors of PC. These three factors combined with cT4 were selected as predictive factors, and the number of predictive variables was significantly related to the possibility of PC (2.0%, 12.8%, 20.0%, 54.2%, and 100%, respectively). When the cutoff value is more than one predictive factor, the negative predictive value is 98.0%, with an area under the curve of 0.780. This model could exempt 29.8% of unnecessary SL compared to the indication of the current NCCN guideline. Conclusions We constructed a simple model to predict the probability of PC using the number of predictive factors. It is recommended that patients without any of these factors should be exempt from SL.
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Prasath V, Quinn PL, Oliver JB, Arjani S, Ahlawat SK, Chokshi RJ. Cost-effectiveness analysis of infected necrotizing pancreatitis management in an academic setting. Pancreatology 2022; 22:185-193. [PMID: 34879998 DOI: 10.1016/j.pan.2021.11.011] [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: 03/14/2021] [Revised: 11/22/2021] [Accepted: 11/30/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Traditional management for infected necrotizing pancreatitis (INP) often utilizes open necrosectomy, which carries high morbidity and complication rates. Thus, minimally invasive strategies have gained favor, specifically step-up approaches utilizing endoscopic or minimally-invasive surgery (MIS); however, the ideal management modality for INP has not been identified. METHODS A decision tree model was designed to analyze costs and survival associated with open necrosectomy, endoscopic step-up, and MIS step-up protocols for management of INP after 4 weeks of necrosis development with adequate retroperitoneal access. Costs were based on a third-party payer perspective using Medicare reimbursement rates. The model's effectiveness was represented by quality-adjusted life-years (QALYs). Sensitivity analyses were performed to validate results. RESULTS Endoscopic step-up was the dominant economic strategy with 7.92 QALYs for $90,864.09. Surgical step-up resulted in a decrease of 0.09 QALYs and a cost increase of $10,067.89 while open necrosectomy resulted in a decrease of 0.4 QALYs and an increased cost of $18,407.52 over endoscopic step-up. In 100,000 random-sampling simulations, 65.5% of simulations favored endoscopic step-up. MIS step-up was favored when MIS acute mortality rates fell and when MIS drainage success rates rose. CONCLUSIONS In our simulated patients with INP, the most cost-effective management strategy is endoscopic step-up. Cost-effectiveness varies with changes in acute mortality and drainage success, which will depend on local expertise.
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Affiliation(s)
- Vishnu Prasath
- Division of Surgical Oncology, Department of Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA.
| | - Patrick L Quinn
- Division of Surgical Oncology, Department of Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA.
| | - Joseph B Oliver
- Division of Minimally Invasive Surgery, Department of Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA.
| | - Simran Arjani
- Division of Surgical Oncology, Department of Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA.
| | - Sushil K Ahlawat
- Division of Gastroenterology and Hepatology, Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, USA.
| | - Ravi J Chokshi
- Division of Surgical Oncology, Department of Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA.
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Huang J, Chen Y, Zhang Y, Xie J, Liang Y, Yuan W, Zhou T, Gao R, Wen R, Xia Y, Long L. Comparison of clinical-computed tomography model with 2D and 3D radiomics models to predict occult peritoneal metastases in advanced gastric cancer. Abdom Radiol (NY) 2022; 47:66-75. [PMID: 34636930 DOI: 10.1007/s00261-021-03287-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 02/05/2023]
Abstract
PURPOSE To compare the ability of a clinical-computed tomography (CT) model vs. 2D and 3D radiomics models for predicting occult peritoneal metastasis (PM) in patients with advanced gastric cancer (AGC). METHODS In this retrospective study, we included 49 patients with occult PM and 49 control patients (without PM) who underwent preoperative CT and subsequent surgery between January 2016 and December 2018. Clinical information and CT semantic features were collected, and CT radiomics features were extracted. A predictive clinical-CT model was created using multivariate logistic regression. The least absolute shrinkage and selection operator algorithm and logistic regression were used for constructing 2D and 3D radiomics models. These models were validated with an external cohort (n = 30). Receiver operating characteristics curve with area under the curve (AUC), sensitivity, and specificity were used to evaluate predictive performance. RESULTS Tumor size, mild ascites, and serum CA125 were independent factors predictive of occult PM. The clinical-CT model of these independent factors showed better diagnostic performance than 2D and 3D radiomics models. In the external validation cohort, the AUCs of different models were as follows-clinical-CT model: 0.853 (sensitivity, 66.7%; specificity, 93.3%); 2D radiomics model: 0.622 (sensitivity, 80.0%; specificity, 46.7%); and 3D radiomics model: 0.676 (sensitivity, 60.0%; specificity, 86.0%). The clinical-CT model nomogram showed good clinical predictive efficiency to assess occult PM. CONCLUSION The clinical-CT model was better than the radiomics models in predicting occult PM in AGC.
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Affiliation(s)
- Jiang Huang
- Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Yidi Chen
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yuying Zhang
- Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Jinhuan Xie
- Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Yiqiong Liang
- Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Wenzhao Yuan
- Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Ting Zhou
- Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi, China
| | - Ruizhi Gao
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Rong Wen
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Yuwei Xia
- Huiying Medical Technology Co. Ltd, Beijing, 100192, China
| | - Liling Long
- Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi, China.
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[Complete response after neoadjuvant therapy for gastric cancer: implications for surgery]. Chirurg 2021; 93:138-143. [PMID: 34622304 DOI: 10.1007/s00104-021-01516-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Perioperative or neoadjuvant therapy is the mainstay of treatment for locally advanced gastric cancer in Europe; however, data regarding possible modifications in the surgical strategy depending on the response to preoperative treatment are lacking. METHODS This review was carried out based on a search of the relevant contemporary literature regarding neoadjuvant or perioperative treatment for gastric adenocarcinoma and the implications of tumor response for the subsequent surgical treatment. RESULTS The most recent randomized trials showed a survival benefit after perioperative or neoadjuvant treatment for gastric cancer. Due to the variable response to the preoperatively administered part of the therapy, including complete response, it appears reasonable to develop an individualized surgical approach; however, scientific results supporting this approach are limited due to the variable quality of the surgical resection provided in these studies and the limited rate of complete response to preoperative treatment. Moreover, the reliability of clinical restaging after preoperative treatment is also limited. On the other hand, there is currently evidence that supports a re-evaluation of the necessary resection margins for partial gastrectomy in advanced gastric cancer with the help of intraoperative frozen sections and new reconstruction methods. CONCLUSION The current evidence does not support the implementation of a complete organ-sparing strategy with active follow-up surveillance for gastric cancer.; however, stomach-preserving partial gastrectomy techniques could be applied for advanced disease more often in the future.
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Chen Y, Xi W, Yao W, Wang L, Xu Z, Wels M, Yuan F, Yan C, Zhang H. Dual-Energy Computed Tomography-Based Radiomics to Predict Peritoneal Metastasis in Gastric Cancer. Front Oncol 2021; 11:659981. [PMID: 34055627 PMCID: PMC8160383 DOI: 10.3389/fonc.2021.659981] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/26/2021] [Indexed: 01/06/2023] Open
Abstract
Objective To develop and validate a dual-energy computed tomography (DECT) derived radiomics model to predict peritoneal metastasis (PM) in patients with gastric cancer (GC). Methods This retrospective study recruited 239 GC (non-PM = 174, PM = 65) patients with histopathological confirmation for peritoneal status from January 2015 to December 2019. All patients were randomly divided into a training cohort (n = 160) and a testing cohort (n = 79). Standardized iodine-uptake (IU) images and 120-kV-equivalent mixed images (simulating conventional CT images) from portal-venous and delayed phases were used for analysis. Two regions of interest (ROIs) including the peritoneal area and the primary tumor were independently delineated. Subsequently, 1691 and 1226 radiomics features were extracted from the peritoneal area and the primary tumor from IU and mixed images on each phase. Boruta and Spearman correlation analysis were used for feature selection. Three radiomics models were established, including the R_IU model for IU images, the R_MIX model for mixed images and the combined radiomics model (the R_comb model). Random forest was used to tune the optimal radiomics model. The performance of the clinical model and human experts to assess PM was also recorded. Results Fourteen and three radiomics features with low redundancy and high importance were extracted from the IU and mixed images, respectively. The R_IU model showed significantly better performance to predict PM than the R_MIX model in the training cohort (AUC, 0.981 vs. 0.917, p = 0.034). No improvement was observed in the R_comb model (AUC = 0.967). The R_IU model was the optimal radiomics model which showed no overfitting in the testing cohort (AUC = 0.967, p = 0.528). The R_IU model demonstrated significantly higher predictive value on peritoneal status than the clinical model and human experts in the testing cohort (AUC, 0.785, p = 0.005; AUC, 0.732, p <0.001, respectively). Conclusion DECT derived radiomics could serve as a non-invasive and easy-to-use biomarker to preoperatively predict PM for GC, providing opportunity for those patients to tailor appropriate treatment.
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Affiliation(s)
- Yong Chen
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenqi Xi
- Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiwu Yao
- Department of Radiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lingyun Wang
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhihan Xu
- Department of DI CT Collaboration, Siemens Healthineers Ltd, Shanghai, China
| | - Michael Wels
- Department of Diagnostic Imaging Computed Tomography Image Analytics, Siemens Healthcare GmbH, Forchheim, Germany
| | - Fei Yuan
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Yan
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huan Zhang
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Abstract
OBJECTIVE To evaluate the cost-effectiveness of surgical treatment pathways for apical prolapse. STUDY DESIGN We constructed a stochastic Markov model to assess the cost-effectiveness of vaginal apical suspension, laparoscopic sacrocolpopexy, and robotic sacrocolpopexy. We modeled over 5 and 10 years, with 9 pathways accounting for up to 2 separate surgical repairs, recurrence of symptomatic apical prolapse, reoperation, and complications, including mesh excision. We calculated costs from the health care system's perspective. RESULTS Over 5 years, compared with expectant management, all surgical treatment pathways cost less than the willingness-to-pay threshold of US $50,000 per quality adjusted life-years. However, among surgical treatments, all but 2 pathways were dominated. Of the remaining 2, laparoscopic sacrocolpopexy followed by vaginal repair for apical recurrence was not cost-effective compared with the vaginal-only approach (incremental cost-effectiveness ratio [ICER], >$500,000). Over 10 years, all but the same 2 pathways were dominated. However, starting with the laparoscopic approach in this case was more cost-effective with an ICER of US $6,176. If the laparoscopic approach was not available, starting with the robotic approach similarly became more cost-effective at 10 years (ICER, US $35,479). CONCLUSIONS All minimally invasive surgical approaches for apical prolapse repair are cost-effective when compared with expectant management. Among surgical treatments, the vaginal-only approach is the only cost-effective option over 5 years. However, over a longer period, starting with a laparoscopic (or robotic) approach becomes cost-effective. These results help inform discussions regarding the surgical approach for prolapse.
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Jiang Y, Liang X, Wang W, Chen C, Yuan Q, Zhang X, Li N, Chen H, Yu J, Xie Y, Xu Y, Zhou Z, Li G, Li R. Noninvasive Prediction of Occult Peritoneal Metastasis in Gastric Cancer Using Deep Learning. JAMA Netw Open 2021; 4:e2032269. [PMID: 33399858 PMCID: PMC7786251 DOI: 10.1001/jamanetworkopen.2020.32269] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
IMPORTANCE Occult peritoneal metastasis frequently occurs in patients with advanced gastric cancer and is poorly diagnosed with currently available tools. Because the presence of peritoneal metastasis precludes the possibility of curative surgery, there is an unmet need for a noninvasive approach to reliably identify patients with occult peritoneal metastasis. OBJECTIVE To assess the use of a deep learning model for predicting occult peritoneal metastasis based on preoperative computed tomography images. DESIGN, SETTING, AND PARTICIPANTS In this multicenter, retrospective cohort study, a deep convolutional neural network, the Peritoneal Metastasis Network (PMetNet), was trained to predict occult peritoneal metastasis based on preoperative computed tomography images. Data from a cohort of 1225 patients with gastric cancer who underwent surgery at Sun Yat-sen University Cancer Center (Guangzhou, China) were used for training purposes. To externally validate the model, data were collected from 2 independent cohorts comprising a total of 753 patients with gastric cancer who underwent surgery at Nanfang Hospital (Guangzhou, China) or the Third Affiliated Hospital of Southern Medical University (Guangzhou, China). The status of peritoneal metastasis for all patients was confirmed by pathological examination of pleural specimens obtained during surgery. Detailed clinicopathological data were collected for each patient. Data analysis was performed between September 1, 2019, and January 31, 2020. MAIN OUTCOMES AND MEASURES The area under the receiver operating characteristic curve (AUC) and decision curve were analyzed to evaluate performance in predicting occult peritoneal metastasis. RESULTS A total of 1978 patients (mean [SD] age, 56.0 [12.2] years; 1350 [68.3%] male) were included in the study. The PMetNet model achieved an AUC of 0.946 (95% CI, 0.927-0.965), with a sensitivity of 75.4% and a specificity of 92.9% in external validation cohort 1. In external validation cohort 2, the AUC was 0.920 (95% CI, 0.848-0.992), with a sensitivity of 87.5% and a specificity of 98.2%. The discrimination performance of PMetNet was substantially higher than conventional clinicopathological factors (AUC range, 0.51-0.63). In multivariable logistic regression analysis, PMetNet was an independent predictor of occult peritoneal metastasis. CONCLUSIONS AND RELEVANCE The findings of this cohort study suggest that the PMetNet model can serve as a reliable noninvasive tool for early identification of patients with clinically occult peritoneal metastasis, which will inform individualized preoperative treatment decision-making and may avoid unnecessary surgery and complications. These results warrant further validation in prospective studies.
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Affiliation(s)
- Yuming Jiang
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California
| | - Xiaokun Liang
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China
- Shenzhen Colleges of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, Guangdong, China
| | - Wei Wang
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Chuanli Chen
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qingyu Yuan
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaodong Zhang
- Department of Radiology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Na Li
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China
- Shenzhen Colleges of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, Guangdong, China
| | - Hao Chen
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiang Yu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yaoqin Xie
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China
- Shenzhen Colleges of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, Guangdong, China
| | - Yikai Xu
- Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiwei Zhou
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Guoxin Li
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ruijiang Li
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California
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He Q, Zhu J, Wang A, Ji K, Ji X, Zhang J, Wu X, Li X, Bu Z, Ji J. A decision analysis comparing three strategies for peritoneal lavage cytology testing in staging of gastric cancer in China. Cancer Med 2020; 9:8940-8949. [PMID: 33047873 PMCID: PMC7724308 DOI: 10.1002/cam4.3518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Positive peritoneal cytology (PCY) indicates metastasis (M1) in gastric cancer (GC) patients; both the American and Chinese guidelines recommend laparoscopic peritoneal lavage (LPL) for cytology. However, relatively high costs impair the widespread use of LPL in some resource-limited regions in China, and the cost-effectiveness of PCY testing remains unclear. Therefore, we performed a decision analysis to evaluate the cost-effectiveness of PCY testing by comparing the guideline-recommended intraoperative LPL, a newly proposed preoperative percutaneous peritoneal lavage (PPL), and a third strategy of exploratory laparotomy with no cytology testing (ELNC) among GC patients. METHODS We developed a decision-analytic Markov model of the aforementioned three strategies for a hypothetical cohort of GC patients with curative intent after initial imaging, from the perspective of Chinese society. We estimated costs, quality-adjusted life years (QALYs), and incremental cost-effectiveness ratios (ICERs) as primary outcomes; we also conducted one-way and probabilistic sensitivity analyses to investigate the model's robustness. RESULTS We found that ELNC was dominated (i.e., more expensive and less effective) by PPL and LPL. LPL was the most cost-effective method with an ICER of US$17,200/QALY compared to PPL, which was below the Chinese willingness-to-pay (WTP) threshold of US$29,313 per QALY gained. In sensitivity analyses, PPL was more likely to be cost-effective with a lower WTP threshold. CONCLUSIONS Cytology testing through either LPL or PPL was less expensive and more effective than ELNC among GC patients. Moreover, LPL was the most cost-effective modality at the current WTP threshold, while PPL could potentially be cost-effective in lower-income areas.
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Affiliation(s)
- Qifei He
- Department of Gastrointestinal SurgeryKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education)Peking University Cancer Hospital & InstituteBeijingChina
| | - Jinyi Zhu
- Center for Health Decision ScienceHarvard T.H. Chan School of Public HealthBostonMAUSA
| | - Anqiang Wang
- Department of Gastrointestinal SurgeryKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education)Peking University Cancer Hospital & InstituteBeijingChina
| | - Ke Ji
- Department of Gastrointestinal SurgeryKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education)Peking University Cancer Hospital & InstituteBeijingChina
| | - Xin Ji
- Department of Gastrointestinal SurgeryKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education)Peking University Cancer Hospital & InstituteBeijingChina
| | - Ji Zhang
- Department of Gastrointestinal SurgeryKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education)Peking University Cancer Hospital & InstituteBeijingChina
| | - Xiaojiang Wu
- Department of Gastrointestinal SurgeryKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education)Peking University Cancer Hospital & InstituteBeijingChina
| | - Xia Li
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Zhaode Bu
- Department of Gastrointestinal SurgeryKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education)Peking University Cancer Hospital & InstituteBeijingChina
| | - Jiafu Ji
- Department of Gastrointestinal SurgeryKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education)Peking University Cancer Hospital & InstituteBeijingChina
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Chen X, Chen S, Wang X, Nie R, Chen D, Xiang J, Lin Y, Chen Y, Peng J. Analysis and external validation of a nomogram to predict peritoneal dissemination in gastric cancer. Chin J Cancer Res 2020; 32:197-207. [PMID: 32410797 PMCID: PMC7219103 DOI: 10.21147/j.issn.1000-9604.2020.02.07] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 04/08/2020] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE Peritoneal dissemination is difficult to diagnose by conventional imaging technologies. We aimed to construct a nomogram to predict peritoneal dissemination in gastric cancer (GC) patients. METHODS We retrospectively analyzed 1,112 GC patients in Sun Yat-sen University Cancer Center between 2001 and 2010 as the development set and 474 patients from The Sixth Affiliated Hospital, Sun Yat-sen University between 2010 and 2016 as the validation set. The clinicopathological variables associated with gastric cancer with peritoneal dissemination (GCPD) were analyzed. We used logistic regression analysis to identify independent risk factors for peritoneal dissemination. Then, we constructed a nomogram for the prediction of GCPD and defined its predictive value with a receiver operating characteristic (ROC) curve. External validation was performed to validate the applicability of the nomogram. RESULTS In total, 250 patients were histologically identified as having peritoneal dissemination. Logistic regression analysis demonstrated that age, sex, tumor location, tumor size, signet-ring cell carcinoma (SRCC), T stage, N stage and Borrmann classification IV (Borrmann IV) were independent risk factors for peritoneal dissemination. We constructed a nomogram consisting of these eight factors to predict GCPD and found an optimistic predictive capability, with a C-index of 0.791, an area under the curve (AUC) of 0.791, and a 95% confidence interval (95% CI) of 0.762-0.820. The results found in the external validation set were also promising. CONCLUSIONS We constructed a highly sensitive nomogram that can assist clinicians in the early diagnosis of GCPD and serve as a reference for optimizing clinical management strategies.
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Affiliation(s)
- Xijie Chen
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Shi Chen
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Xinyou Wang
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Runcong Nie
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Dongwen Chen
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Jun Xiang
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Yijia Lin
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Yingbo Chen
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Junsheng Peng
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
- Guangdong Institute of Gastroenterology, Guangzhou 510655, China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
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20
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Carlotto JRM, Carlotto FM, Vesco Neto MD, Pastorello J, Schmitz LD, Dal-Vesco JA. Preoperative laparoscopy and peritoneal lavage in gastric adenocarcinoma: can the approach be modified? ACTA ACUST UNITED AC 2020; 46:e20192314. [PMID: 32022110 DOI: 10.1590/0100-6991e-20192314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 09/17/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE to assess whether laparoscopy with peritoneal lavage is superior to computed tomography for staging gastric adenocarcinoma and whether it can modify the surgical approach. METHODS we conducted a retrospective study of 46 patients with gastric adenocarcinoma treated by the digestive surgery team of the Passo Fundo Clinics Hospital (RS), from January 2015 to December 2018, and submitted to laparoscopy with preoperative peritoneal lavage. All patients underwent preoperative clinical staging with computed tomography. RESULTS of the 46 patients analyzed, the majority had tumors located in the cardia (34.8%), poorly differentiated (69.6%), and subtype signet ring cells (65.2%). In 91.3%, the computed tomography scan did not identify peritoneal carcinomatosis or distant metastasis. Among these patients with negative computed tomography for distant disease, 21.8% had positive peritoneal lavage for neoplastic cells and had their therapeutic approaches modified. CONCLUSION laparoscopy and peritoneal lavage altered the surgical decision in 21.8% of patients, providing a more reliable preoperative staging in gastric adenocarcinoma.
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Affiliation(s)
| | | | - Marcos Dal Vesco Neto
- Hospital de Clínicas de Porto Alegre, Serviço de Cirurgia Geral, Porto Alegre, RS, Brasil
| | - Julia Pastorello
- Hospital de Clínicas de Passo Fundo, Serviço de Oncologia Clínica, Passo Fundo, RS, Brasil
| | - Lucas Duda Schmitz
- Hospital de Clínicas de Passo Fundo, Serviço de Cirurgia do Aparelho Digestivo, Passo Fundo, RS, Brasil
| | - Juarez Antonio Dal-Vesco
- Hospital de Clínicas de Passo Fundo, Serviço de Cirurgia do Aparelho Digestivo, Passo Fundo, RS, Brasil
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21
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Rawicz-Pruszyński K, Mielko J, Pudło K, Lisiecki R, Skoczylas T, Murawa D, Polkowski WP. Yield of staging laparoscopy in gastric cancer is influenced by Laurén histologic subtype. J Surg Oncol 2019; 120:1148-1153. [PMID: 31544969 DOI: 10.1002/jso.25711] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 09/10/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Staging laparoscopy (SL) with cytologic lavage is a useful staging procedure that allows tailoring the treatment of advanced gastric cancer (GC). The current study aimed to evaluate the total yield of SL in patients with various Laurén histo-types of GC, before planned neoadjuvant chemotherapy and gastrectomy. METHODS After exclusion of distant metastatic disease on imaging modalities, 173 patients with primary advanced gastric adenocarcinoma who underwent SL between August 2016 and September 2018, were eligible for the analysis. Patients sex, age, Lauren histo-type, tumor location, grade, cT, and cN were assessed in bivariate analysis. Multivariable logistic regression analysis was used to identify independent factors associated with peritoneal metastases. RESULTS Peritoneal metastases, ascites, and positive cytology were found in 39 (22.5%), 17 (9.8%) and 38 (22%) patients, respectively. The total yield of the SL in the current study was 36.4%. Multivariable logistic regression analysis revealed that serosal involvement (cT4) and diffuse histo-type were independent predictors of peritoneal metastases (OR, 15; 95% CI, 1.9-119, P = .02 and OR, 2.4; 95% CI, 1.2-4.6, P = .01, respectively). CONCLUSIONS Although cT4 and diffuse tumors show the highest association with peritoneal metastases, SL is a valuable diagnostic procedure in all advanced GC patients.
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Affiliation(s)
| | - Jerzy Mielko
- Department of Surgical Oncology, Medical University of Lublin, Lublin, Poland
| | - Kamil Pudło
- Department of General, Gastrointestinal Surgery and Surgical Oncology of the Alimentary Tract, Medical University of Lublin, Lublin, Poland
| | - Radosław Lisiecki
- Department of General Surgery and Oncological Surgery, Pleszewskie Medical Center, Pleszew, Poland
| | - Tomasz Skoczylas
- Department of General, Gastrointestinal Surgery and Surgical Oncology of the Alimentary Tract, Medical University of Lublin, Lublin, Poland
| | - Dawid Murawa
- Department of Surgery and Oncology, University of Medical Science, Zielona Góra, Poland
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22
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Fukagawa T. Role of staging laparoscopy for gastric cancer patients. Ann Gastroenterol Surg 2019; 3:496-505. [PMID: 31549009 PMCID: PMC6749947 DOI: 10.1002/ags3.12283] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 07/26/2019] [Accepted: 07/29/2019] [Indexed: 12/16/2022] Open
Abstract
Staging laparoscopy (SL) is frequently carried out in patients with advanced gastric cancer. However, some clinical questions are being debated and consensus must be obtained. With this aim, a literature search of PubMed/MEDLINE was carried out using the keywords "gastric cancer," "SL," and "diagnostic laparoscopy". Articles published online up to February 2019 were analyzed, focusing on the following questions. (i) What is an adequate indication for SL? (ii) How do you carry out SL? (iii) Does SL provide accurate information about peritoneal dissemination? (iv) Is the yield of SL different by tumor location? (v) Is SL a safe procedure? (vi) Is "repeat SL" needed? (vii) Does SL provide oncological benefit? Results provided the following responses: (i) In Western countries, clinically resectable advanced tumor is an indication for SL. Terms to be introduced for adequate indication include "location," "type 4 (linitis feature)," "large tumor," "equivocal computed tomography (CT] findings," and "lymph node swelling". (ii) Exploration of the entire peritoneal cavity is preferable. (iii) Detection rate of peritoneal disease is 43%-52% in Japanese institutions and 7.8%-40% in other countries. False-negative findings during SL were 0%-17%, and 10%-13% when limited to cytology. (iv) Yield of SL was higher in gastric cancer compared with esophagogastric junctional tumor. (v) SL-related complications were estimated to occur in 0.4%. (vi) Repeat SL is important after treatment. (vii) If the efficacy of neoadjuvant chemotherapy for patients with P0CY1 is established, SL can provide oncological benefit. SL can be carried out safely and effectively. Considering the prevalence of neoadjuvant treatment, the role of SL will become more important.
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Affiliation(s)
- Takeo Fukagawa
- Department of SurgerySchool of MedicineTeikyo UniversityTokyoJapan
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23
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Radiomics analysis using contrast-enhanced CT for preoperative prediction of occult peritoneal metastasis in advanced gastric cancer. Eur Radiol 2019; 30:239-246. [DOI: 10.1007/s00330-019-06368-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 06/23/2019] [Accepted: 07/11/2019] [Indexed: 01/08/2023]
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24
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Liu K, Chen XZ, Zhang WH, Zhang DY, Luo Y, Yu Y, Yang K, Yang SJ, Chen XL, Sun LF, Zhao LY, Zhou ZG, Hu JK. "Four-Step Procedure" of laparoscopic exploration for gastric cancer in West China Hospital: a retrospective observational analysis from a high-volume institution in China. Surg Endosc 2018; 33:1674-1682. [PMID: 30478700 PMCID: PMC6484818 DOI: 10.1007/s00464-018-6605-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 11/19/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND The preoperative work-up has limitations on finding peritoneal dissemination (PD) in gastric cancer patients. Laparoscopic exploration (LE) can discover radiographically occult PD, obtain accurate stage and avert futile laparotomy. The aim of our study was to introduce "Four-Step Procedure" LE in West China Hospital and further evaluate its safety and feasibility. METHODS We conducted a retrospective analysis on 165 patients from July 2016 to December 2017 who underwent "Four-Step Procedure" LE in gastrointestinal surgery department of West China Hospital. All the patients were diagnosed with gastric adenocarcinoma without explicit distant metastasis through Computed Tomography and/or Gastrointestinal Ultrasonography. Peritoneal lavage cytological examination (CY) was routinely performed during LE in our research. The "Four-Step" technical process of LE was introduced comprehensively. The clinicopathologic features and the presence of PD or CY at LE were analyzed, and the stratified analysis by cT and cN stages on the proportion of P1 and/or CY1 was also reported in this study. RESULTS Total of 165 patients accepted LE in our study, among these patients: 27 (16.4%) patients with P1 and/or CY1: 19 (11.5%) patients were found PD (P1), 17 (10.3%) patients with positive cytological examination (CY1) and 9 (3.6%) patients with P1Cy1. The stratified analysis by cT stage indicated that there was no P1 and/or Cy1 in cT1-cT2 stages, 1 (2.7%) patient with P1 and 1 (2.7%) with Cy1 in cT3 stage, 18 (20.0%) patients with P1 and 16 (17.8%) with Cy1 in cT4 stage. After LE, there were 74 (44.8%) patients underwent laparoscopic assistant gastrectomy, 25 (15.2%) patients with open gastrectomy, 50 (30.3%) patients with neoadjuvant chemotherapy and 16 (9.7%) patients with palliative chemotherapy and/or conversion therapy. CONCLUSION "Four-Step Procedure" LE is reliable and feasible for gastric cancer. From our study, LE has unique superiority on ascertaining PD and cytological examination and LE should be recommended in cT4 stage gastric cancer before resection.
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Affiliation(s)
- Kai Liu
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Xin-Zu Chen
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Wei-Han Zhang
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Dong-Yang Zhang
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Yi Luo
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Yue Yu
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Kun Yang
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Shi-Jie Yang
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Xiao-Long Chen
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Li-Fei Sun
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Lin-Yong Zhao
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Zong-Guang Zhou
- Department of Gastrointestinal Surgery and Laboratory of Digestive Surgery, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Jian-Kun Hu
- Department of Gastrointestinal Surgery and Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China.
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25
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Thiels CA, Ikoma N, Fournier K, Das P, Blum M, Estrella JS, Minsky BD, Ajani J, Mansfield P, Badgwell BD. Repeat staging laparoscopy for gastric cancer after preoperative therapy. J Surg Oncol 2018; 118:61-67. [PMID: 29878364 DOI: 10.1002/jso.25094] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 04/16/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Staging laparoscopy is recommended before preoperative therapy in patients with locoregional gastric cancer, but yield of repeated diagnostic laparoscopy at the time of resection is unknown. METHODS Retrospective review of a prospective database of patients with gastric adenocarcinoma (1994-2016) who had negative staging laparoscopy followed by preoperative therapy and subsequent attempted resection. Primary outcome was positive exploration (peritoneal or unresectable disease) at the time of resection. Multivariable logistic regression identified factors associated with positive exploration. RESULTS Of the 451 patients with attempted resection, 54 (12.0%) had positive explorations, including 48 with peritoneal disease. Patients with positive explorations were more likely to be female and have poorly differentiated tumors, linitis features, and signet-ring morphology. There was no significant difference by exploration results in age, race, clinical stage, or delayed definitive surgery. Positive explorations were independently associated with poor differentiation (OR 4.6, 95%CI 1.4-15.3; P = 0.01) and linitis (OR 4.2, 95%CI 1.9-9.2; P < 0.001). Positive explorations were seen in 14.0% of patients with poor differentiation, 36.6% of patients with linitis, and 5.8% of patients with neither linitis nor poor differentiation. CONCLUSION Despite negative pretreatment laparoscopy, post-treatment repeat laparoscopy may prevent non-therapeutic laparotomies. At a minimum, we recommend selective repeat laparoscopy for patients with linitis features.
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Affiliation(s)
| | - Naruhiko Ikoma
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Keith Fournier
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Prajnan Das
- Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mariela Blum
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jeannelyn S Estrella
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Bruce D Minsky
- Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jaffer Ajani
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Paul Mansfield
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Brian D Badgwell
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
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