1
|
Liao S, Liao R, Wu H, Wang S, Zhou Y. Proposal for a new N-stage classification system for intrahepatic cholangiocarcinoma. Front Oncol 2023; 13:1149211. [PMID: 37637053 PMCID: PMC10455933 DOI: 10.3389/fonc.2023.1149211] [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: 01/21/2023] [Accepted: 06/22/2023] [Indexed: 08/29/2023] Open
Abstract
Background The number of metastatic lymph nodes (MLNs) is not considered in the nodal status (N classification) of intrahepatic cholangiocarcinoma (ICC) in the current 8thEdition of the American Joint Committee on Cancer (AJCC) staging system. The aim of this study was to find out the optimal cut-off point based on the number of MLNs and establish a modified AJCC staging system for ICC according to the new N category. Methods A total of 675 ICC patients diagnosed between 2004 and 2015 were retrieved from the Surveillance, Epidemiology and End Results (SEER) database. The optimal cut-off value of MLNs affecting survival was determined by X-tile software. The relative discriminative power was assessed by Harrell's concordance index (C-index) and Akaike information criterion (AIC). Results The proposed new nodal category subdivided patients into three groups (N0, no MLN; N1, 1-3 MLNs; and N2, ≥ 4 MLNs) with significantly different overall survival (P < 0.001). Multivariable analysis revealed that the new nodal category was an independent prognostic factor (P < 0.001). Both the C-index and AIC for our modified staging system were better than those for the 8th AJCC edition (0.574 [95% confidence interval 0.533-0.615] versus 0.570 [95% confidence interval 0.527-0.613], and 853.30 versus 854.21, respectively). Conclusion The modified AJCC staging system based on the number of MLNs may prove to be a useful alternative for predicting survival of ICC patients in clinical practice.
Collapse
Affiliation(s)
- Shan Liao
- Department of General Surgery, First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Ruizhe Liao
- Department of General Surgery, First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Huaxing Wu
- Department of General Surgery, First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Shijie Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yanming Zhou
- Department of General Surgery, First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| |
Collapse
|
2
|
Mashiko T, Ogasawara T, Masuoka Y, Ei S, Takahashi S, Mori M, Koyanagi K, Yamamoto S, Nakagohri T. Indications for resection of recurrent lesions in patients with distal cholangiocarcinoma based on prognostic factors: a single-institute retrospective study and brief literature review. BMC Surg 2022; 22:423. [PMID: 36503431 PMCID: PMC9743743 DOI: 10.1186/s12893-022-01879-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND To evaluate the effectiveness of surgery for recurrent distal cholangiocarcinoma and determine surgical indications based on prognostic factors for the recurrence of distal cholangiocarcinoma. METHODS We analysed the outcomes of 101 patients who underwent surgical resection for distal cholangiocarcinoma between 2000 and 2018. The clinicopathological factors and prognosis of primary and recurrent distal cholangiocarcinoma were investigated. RESULTS Of the 101 patients with resected distal cholangiocarcinoma, 52 (51.5%) had relapsed. Seven (13.5%) and 45 patients (86.5%) underwent resection of recurrent lesions and palliative therapy, respectively. There were no major complications requiring therapeutic intervention after metastasectomy. The median overall survival in patients with and without surgery for recurrent lesions was 83.0 (0.0-185.6) and 34 months (19.0-49.0), respectively. Therefore, patients who had undergone surgery for recurrent lesions had a significantly better prognosis (p = 0.022). Multivariate analyses of recurrent distal cholangiocarcinoma revealed that recurrence within one year was an independent predictor of poor survival. Resection of recurrent lesions improved prognosis. CONCLUSIONS Radical resection in recurrent distal cholangiocarcinoma may improve the prognosis in selected patients. Although time to recurrence is considered an important factor, the small number of cases of recurrence and resection of recurrent lesions in this study makes it difficult to conclude which patients are best suited for resection of recurrent lesions. This issue requires clarification in a multicentre prospective study, considering patients' background, such as the recurrence site and number of metastases.
Collapse
Affiliation(s)
- Taro Mashiko
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
| | - Toshihito Ogasawara
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Yoshihito Masuoka
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Shigenori Ei
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Shinichiro Takahashi
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Masaki Mori
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Kazuo Koyanagi
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Seiichiro Yamamoto
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Toshio Nakagohri
- Department of Gastroenterological Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| |
Collapse
|
3
|
OUP accepted manuscript. Br J Surg 2022; 109:580-587. [DOI: 10.1093/bjs/znac075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 02/23/2022] [Indexed: 11/13/2022]
|
4
|
The effect of the robotic platform in hepatectomy after prior liver and non-liver abdominal operations: a comparative study of clinical outcomes. J Robot Surg 2021; 16:1067-1072. [PMID: 34825309 DOI: 10.1007/s11701-021-01343-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 11/21/2021] [Indexed: 02/07/2023]
Abstract
Improvements in outcomes after primary hepatectomy have increased the eligibility of patients for reoperative hepatectomies, but this can be fraught with technical difficulties, particularly via a minimally invasive approach. The robotic approach provides superior visualization, articulated instrumentation, platform stability, and increased dexterity when compared to conventional laparoscopy. We sought to investigate the effect brought by the robotic system in the outcome of these operations. We followed 234 patients who underwent robotic liver resection from 2012 to 2021 for retrospective analysis. Patients were classified as: no prior abdominal operation, prior abdominal operation(s), and prior liver resection. Cohorts were compared by one-way ANOVA and 2 × 3 contingency table analyses. For illustrative purposes, data are presented as median (mean ± SD). Significance was accepted at p < 0.05. Of the 234 patients studied, 114 underwent primary hepatectomy, 105 had a prior laparoscopic or open abdominal operation (cholecystectomy, herniorrhaphy, colectomy, and appendectomy), and 15 had a redo hepatectomy. Demographic and preoperative ASA, MELD, neoplasm size, and extent of liver resection were similar among the cohorts. There were no statistically significant differences between the three cohorts for all outcome variables including blood loss, operative duration, intensive care unit length of stay, overall length of stay, morbidity, mortality, and readmission rate. There were no differences in morbidity nor mortality between patients undergoing primary nor reoperative robotic hepatectomy. The advantages afforded by the robotic platform may have contributed to the equalization of outcomes.
Collapse
|