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Zou B, Ning N, Yan Y, Zhang Y. Lateral lymph node dissection can increase overall survival and 5‑year survival rate of rectal cancer patients: A meta‑analysis. Oncol Lett 2024; 27:80. [PMID: 38249814 PMCID: PMC10797321 DOI: 10.3892/ol.2024.14214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 09/19/2023] [Indexed: 01/23/2024] Open
Abstract
Rectal cancer is one of the most malignant tumors, and postoperative recurrence and metastasis are the main reasons for treatment failure. Lymph node metastasis is the main metastatic pathway of rectal cancer. The present study aimed to investigate the role of lateral lymph node dissection (LLND) in patients with rectal cancer using a meta-analysis. Articles in Chinese and English related to the application of LLND in patients with rectal cancer were retrieved and eligible studies were selected for data analysis. Evaluation indicators included the 5-year survival rate, recurrence rate, urinary system function and operation time. The random-effects model was utilized for the analysis. A total of 10 studies that met the eligibility criteria were selected, comprising 2,272 patients, including 1,101 cases in the LLND group and 1,171 cases in the non-LLND group. No significant difference was found between the two groups in terms of local recurrence rate, 5-year disease-free survival (DFS) rate, and DFS rate at the follow-up. It is noteworthy that cases in the LLND group had no significantly longer overall survival, but had a higher 5-year survival rate. However, cases in the LLND group had a longer operation time and worse urinary dysfunction. The results remained consistent throughout separate analyses for different research quality sources. The present meta-analysis showed that LLND provided a specific advantage in prolonging survival time. However, it was associated with prolonged operation time and an increased incidence of urinary dysfunction.
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Affiliation(s)
- Boyuan Zou
- Department of Retroperitoneal Tumor and Anorectal Surgery, Peking University International Hospital, Beijing 102206, P.R. China
| | - Ning Ning
- Department of Gastroenterological Surgery, Peking University International Hospital, Beijing 102206, P.R. China
| | - Yichao Yan
- Department of Gastroenterological Surgery, Peking University International Hospital, Beijing 102206, P.R. China
| | - Yankai Zhang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Peking University People's Hospital, Beijing 100044, P.R. China
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Zhang C, Gudmundsdottir H, Takahashi H, Day C, Glasgow A, Wasif N, Starlinger P, Warner S, Grotz T, Smoot R, Truty M, Cleary S, Kendrick M, Nagorney D, Navin P, Halfdanarson TR, Thiels C. Accuracy of DOTATATE PET imaging in the preoperative planning of small bowel neuroendocrine tumor resection. J Surg Oncol 2023; 128:1072-1079. [PMID: 37529970 DOI: 10.1002/jso.27413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/17/2023] [Accepted: 07/23/2023] [Indexed: 08/03/2023]
Abstract
BACKGROUND AND OBJECTIVES We assessed the accuracy of preoperative gallium-68 DOTA-Tyr3-octreotate (DOTATATE) positron emission tomography (PET) imaging in estimating multifocality and nodal metastases of small bowel neuroendocrine tumors (sbNETs). METHODS A multicenter analysis was performed on patients with sbNETs who underwent preoperative DOTATATE PET imaging and surgical resection, with manual palpation of the entire length of the small bowel, between January 2016 and August 2022. Preoperative imaging reports and blinded secondary imaging reviews were compared to the final postoperative pathology reports. Descriptive statistics were applied. RESULTS One-hundred and four patients met inclusion criteria. Pathology showed 53 (51%) patients had multifocal sbNETs and 96 (92%) had nodal metastases. The original preoperative DOTATATE PET imaging identified multifocal sbNET in 28 (27%) patients and lymph node (LN) metastases in 80 (77%) patients. Based on original radiology reports, sensitivity for multifocal sbNET identification was 45%, specificity was 92%, positive predictive value (PPV) was 86%, and negative predictive value (NPV) was 62%. For the identification of LN metastases, sensitivity was 82%, specificity was 88%, PPV was 99%, and NPV was 29%. CONCLUSIONS Although DOTATATE PET imaging is specific and relatively accurate, sensitivity and NPV are insufficient to guide surgical planning. Preoperative use should not replace open palpation to identify additional synchronous lesions or to omit regional lymphadenectomy.
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Affiliation(s)
- Chi Zhang
- Department of Surgery, Mayo Clinic, Phoenix, Arizona, USA
- The Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Rochester, Minnesota, USA
| | - Hallbera Gudmundsdottir
- The Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Rochester, Minnesota, USA
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Courtney Day
- The Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Rochester, Minnesota, USA
| | - Amy Glasgow
- The Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Rochester, Minnesota, USA
| | - Nabil Wasif
- Department of Surgery, Mayo Clinic, Phoenix, Arizona, USA
| | | | - Susanne Warner
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Travis Grotz
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Rory Smoot
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mark Truty
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Sean Cleary
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - David Nagorney
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Patrick Navin
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Cornelius Thiels
- The Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Rochester, Minnesota, USA
- Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA
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