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Tsagkalidis V, Ecker BL. ASO Author Reflections: Extent of Resection Not Associated with Disease-Specific Survival in Patients with Localized Mucinous Adenocarcinoma of the Appendix. Ann Surg Oncol 2024:10.1245/s10434-024-15289-7. [PMID: 38622457 DOI: 10.1245/s10434-024-15289-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/17/2024]
Affiliation(s)
- Vasileios Tsagkalidis
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Brett L Ecker
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA.
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA.
- Cooperman Barnabas Medical Center, Livingston, NJ, USA.
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Tsagkalidis V, Choe JK, Beninato T, Eskander MF, Grandhi MS, In H, Kennedy TJ, Langan RC, Maggi JC, Pitt HA, Alexander HR, Ecker BL. Extent of Resection and Long-Term Outcomes for Appendiceal Adenocarcinoma: a SEER Database Analysis of Mucinous and non-Mucinous Histologies. Ann Surg Oncol 2024:10.1245/s10434-024-15233-9. [PMID: 38594579 DOI: 10.1245/s10434-024-15233-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/12/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Mucinous appendiceal adenocarcinomas (MAA) and non-mucinous appendiceal adenocarcinomas (NMAA) demonstrate differences in rates and patterns of recurrence, which may inform the appropriate extent of surgical resection (i.e., appendectomy versus colectomy). The impact of extent of resection on disease-specific survival (DSS) for each histologic subtype was assessed. PATIENTS AND METHODS Patients with resected, non-metastatic MAA and NMAA were identified in the Surveillance, Epidemiology, and End Results database (2000-2020). Multivariable models were created to examine predictors of colectomy for each histologic subtype. DSS was calculated using Kaplan-Meier estimates and examined using Cox proportional hazards modeling. RESULTS Among 4674 patients (MAA: n = 1990, 42.6%; NMAA: n = 2684, 57.4%), the majority (67.8%) underwent colectomy. Among colectomy patients, the rate of nodal positivity increased with higher T-stage (MAA: T1: 4.6%, T2: 4.0%, T3: 17.1%, T4: 21.6%, p < 0.001; NMAA: T1: 6.8%, T2: 11.4%, T3: 25.6%, T4: 43.8%, p < 0.001) and higher tumor grade (MAA: well differentiated: 7.7%, moderately differentiated: 19.2%, and poorly differentiated: 31.3%; NMAA: well differentiated: 9.0%, moderately differentiated: 20.5%, and 44.4%; p < 0.001). Nodal positivity was more frequently observed in NMAA (27.6% versus 16.4%, p < 0.001). Utilization of colectomy was associated with improved DSS for NMAA patients with T2 (log rank p = 0.095) and T3 (log rank p = 0.018) tumors as well as moderately differentiated histology (log rank p = 0.006). Utilization of colectomy was not associated with improved DSS for MAA patients, which was confirmed in a multivariable model for T-stage, grade, and use of adjuvant chemotherapy [hazard ratio (HR) 1.00, 95% confidence interval (CI) 0.81-1.22]. CONCLUSIONS Colectomy was associated with improved DSS for patients with NMAA but not MAA. Colectomy for MAA may not be required.
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Affiliation(s)
- Vasileios Tsagkalidis
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Jennie K Choe
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Toni Beninato
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Mariam F Eskander
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Miral S Grandhi
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Haejin In
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Timothy J Kennedy
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Russell C Langan
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
- Cooperman Barnabas Medical Center, Livingston, NJ, USA
| | - Jason C Maggi
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
- Cooperman Barnabas Medical Center, Livingston, NJ, USA
| | - Henry A Pitt
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - H Richard Alexander
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Brett L Ecker
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA.
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA.
- Cooperman Barnabas Medical Center, Livingston, NJ, USA.
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Abstract
Gastric neuroendocrine tumors (G-NET) are rare tumors arising from enterochromaffin-like cells of the gastric mucosa. They belong to a larger group called gastroenteropancreatic neuroendocrine tumors and are classified as low, intermediate, or high-grade tumors based on their proliferative indices. They are further categorized into three subtypes based on their morphologic characteristics, pathogenesis, and behavior. Types 1 and 2 tumors are characterized by elevated serum gastrin and are usually multifocal. They typically occur in the setting of atrophic gastritis or MEN1/Zollinger Ellison syndrome, respectively. Type 2 tumors are associated with the most symptoms, such as abdominal pain and diarrhea. Type 3 tumors are associated with normal serum gastrin, are usually solitary, and occur sporadically. This type has the most aggressive phenotype and metastatic potential. Treatment and prognosis for G-NET is dependent on their type, size, and stage. Type 1 has the best prognosis, and Type 3 has the worst. This review discusses the presentation, workup, and surgical management of these tumors.
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Affiliation(s)
- Caitlin Sok
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Atlanta, GA, USA
| | - Pranay S Ajay
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Atlanta, GA, USA
| | - Vasileios Tsagkalidis
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - David A Kooby
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Atlanta, GA, USA
| | - Mihir M Shah
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Atlanta, GA, USA.
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Tsagkalidis V, Langan RC, Ecker BL. Ampullary Adenocarcinoma: A Review of the Mutational Landscape and Implications for Treatment. Cancers (Basel) 2023; 15:5772. [PMID: 38136318 PMCID: PMC10741460 DOI: 10.3390/cancers15245772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Ampullary carcinomas represent less than 1% of all gastrointestinal malignancies with an incidence of approximately 6 cases per 1 million. Histologic examination and immunohistochemistry have been traditionally used to categorize ampullary tumors into intestinal, pancreatobiliary or mixed subtypes. Intestinal-subtype tumors may exhibit improved survival versus the pancreatobiliary subtype, although studies on the prognostic value of immunomorphologic classification have been inconsistent. Genomic classifiers hold the promise of greater reliability, while providing potential targets for precision oncology. Multi-institutional collaboration will be necessary to better understand how molecular classification can guide type and sequencing of multimodality therapy.
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Affiliation(s)
- Vasileios Tsagkalidis
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA; (V.T.); (R.C.L.)
| | - Russell C. Langan
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA; (V.T.); (R.C.L.)
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - Brett L. Ecker
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA; (V.T.); (R.C.L.)
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
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Tsagkalidis V, Blaszczyk MB, In H. Interpretation of Tumor Response Grade following Preoperative Therapy for Gastric Cancer: An Overview. Cancers (Basel) 2023; 15:3662. [PMID: 37509323 PMCID: PMC10377503 DOI: 10.3390/cancers15143662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Gastric cancer is among the top five causes of cancer-related death worldwide. Preoperative chemotherapy has been established as an option in patients with locally advanced gastric cancer. However, chemotherapy yields variable results, owing to the cellular and molecular heterogeneity of this disease. Identifying patients who did or did not respond to preoperative therapy can allow clinicians to alter treatment modalities and provide important information related to prognostication. A pathologic response to preoperative therapies, called the Tumor Response Grade (TRG), has been evaluated to quantify treatment response. Multiple systems for TRG have been established. However, the literature has demonstrated inconsistent results for TRG systems and prognosis, possibly due to variability in interpretation of tumor response between systems and interobserver variability. Radiographic responses to preoperative therapies using RECIST 1.1 criteria and endoscopically assessed tumor response have demonstrated association with survival; however, their use in gastric cancer remains challenging given the inability to accurately and consistently identify and measure the tumor, especially in the setting of neoadjuvant therapy, where treatment-related changes can obscure the gastric wall layers. While the response to preoperative therapies with positron emission tomography (PET) has shown promising results in esophageal and esophagogastric junction (EGJ) malignancies, its role in gastric cancer is still under investigation. This review is focused on summarizing the available literature related to evaluating TRG in gastric cancer, as well as providing a brief overview of the use of radiographic and endoscopic methods to assess response to preoperative therapies. Lastly, we outline future directions regarding the use of a universal TRG system to guide care and assist with prognosis.
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Affiliation(s)
- Vasileios Tsagkalidis
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
| | - Maryjka B Blaszczyk
- Department of Pathology and Laboratory Medicine, Rutgers Biomedical and Health Sciences, New Brunswick, NJ 08901, USA
| | - Haejin In
- Division of Surgical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
- Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
- Department of Health Behavior, Society and Policy, Rutgers School of Public Health, Piscataway, NJ 08854, USA
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Casabianca AS, Tsagkalidis V, Burchard PR, Chacon A, Melucci A, Reitz A, Swift DA, McCook AA, Switchenko JM, Shah MM, Carpizo DR. Surgery in combination with systemic chemotherapy is associated with improved survival in stage IV gallbladder cancer. Eur J Surg Oncol 2022; 48:2448-2454. [PMID: 35773092 PMCID: PMC10993821 DOI: 10.1016/j.ejso.2022.06.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/14/2022] [Accepted: 06/20/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Gallbladder cancer (GBC) is the most common biliary malignancy frequently metastatic at diagnosis with poor prognosis. While surgery remains the standard for early-stage GBC, the role of surgery in patients with metastatic gastrointestinal cancers is expanding due to improvements in systemic therapies. We sought to evaluate the survival of patients with stage IV GBC undergoing surgery in an era of improved multi-agent systemic therapy. METHODS A retrospective review of the National Cancer Database was performed. Patients with stage IV GBC who underwent systemic therapy were included. Patients who received radiation therapy, palliative therapy or had missing survival data were excluded. Univariable and multivariable analysis was performed. RESULTS 4,145 patients were identified between 2004 and 2016. Mean age was 69. Surgery combined with systemic therapy predicted improved median survival compared with chemotherapy alone (11.1mo versus 6.8mo, HR 0.65, p < 0.001). Additionally, receipt of treatment after 2011 predicted improved survival (HR 0.86, p < 0.001). Patients treated with multi-agent chemotherapy in combination with surgery were associated with the greatest hazard ratio benefit (0.40, p < 0.001) versus single agent therapy alone. CONCLUSION Patients with stage IV gallbladder cancer treated with a combination of surgery and chemotherapy are associated with an improved overall survival compared to chemotherapy alone. Patients receiving care during the more recent era demonstrated improved survival. These results support a role for surgery in selected patients with stage IV gallbladder cancer receiving chemotherapy.
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Affiliation(s)
- Anthony S Casabianca
- Department of Surgery, Division of General Surgery, University of Rochester, Rochester, NY, USA
| | - Vasileios Tsagkalidis
- Department of Surgery, Division of General Surgery, University of Rochester, Rochester, NY, USA
| | - Paul R Burchard
- Department of Surgery, Division of General Surgery, University of Rochester, Rochester, NY, USA
| | - Alexander Chacon
- Department of Surgery, Division of General Surgery, University of Rochester, Rochester, NY, USA
| | - Alexa Melucci
- Department of Surgery, Division of General Surgery, University of Rochester, Rochester, NY, USA
| | - Alexandra Reitz
- Department of General Surgery, Emory University School of Medicine, Atlanta, GA, USA
| | - David A Swift
- Department of General Surgery, Emory University School of Medicine, Atlanta, GA, USA
| | - Ashley A McCook
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Jeffrey M Switchenko
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Mihir M Shah
- Department of Surgery, Division of Surgical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA
| | - Darren R Carpizo
- Department of Surgery, Division of Surgical Oncology, University of Rochester, NY, USA; Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA.
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Melucci AD, Chacon AC, Burchard PR, Tsagkalidis V, Casabianca AS, Goyal S, Switchenko JM, Kooby DA, Staley CA, Carpizo DR, Shah MM. ASO Visual Abstract: The Impact of Carbohydrate Antigen 19-9 on Survival in Patients with Clinical Stage I and II Pancreatic Cancer. Ann Surg Oncol 2022; 29:8550. [PMID: 36088428 DOI: 10.1245/s10434-022-12538-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Affiliation(s)
- Alexa D Melucci
- Department of Surgery, University of Rochester, Rochester, NY, USA
| | | | - Paul R Burchard
- Department of Surgery, University of Rochester, Rochester, NY, USA
| | | | | | - Subir Goyal
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Jeffrey M Switchenko
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - David A Kooby
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA, USA
| | - Charles A Staley
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA, USA
| | - Darren R Carpizo
- Department of Surgery, University of Rochester, Rochester, NY, USA
- Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA
| | - Mihir M Shah
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA, USA.
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Melucci AD, Chacon AC, Burchard PR, Tsagkalidis V, Casabianca AS, Goyal S, Switchenko JM, Kooby DA, Staley CA, Carpizo DR, Shah MM. The Impact of Carbohydrate Antigen 19-9 on Survival in Patients with Clinical Stage I and II Pancreatic Cancer. Ann Surg Oncol 2022; 29:8536-8547. [PMID: 36121582 PMCID: PMC9879696 DOI: 10.1245/s10434-022-12497-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 08/17/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Carbohydrate antigen (CA) 19-9 is a biomarker to monitor treatment effect. A threshold to predict prognostic significance remains undefined. We evaluated the impact of CA19-9 on overall survival (OS) in patients with early-stage pancreatic cancer (PC) utilizing the National Cancer Database (NCDB). METHODS The NCDB was queried from 2010 to 2014 to identify patients with clinical stage I-II PC. Patients who had undocumented pretreatment CA19-9 were excluded. Patients were stratified into two cohorts: CA19-9 < 98 U/mL and CA19-9 ≥ 98 U/mL, and further categorized into surgery versus no surgery. Twelve- and 24-month OS rates are reported. RESULTS Overall, 32,382 patients (stage I: 12,173; stage II: 20,209) were included. The majority of stage I (52.1%) and II (60%) patients had CA19-9 ≥ 98 U/mL. Stage I-II patients with CA19-9 < 98 U/mL had improved OS rates (stage I: 67.5%, 42.6%; stage II: 59.8%, 32.8%) compared with stage I and II patients with CA19-9 ≥ 98 U/mL (stage I: 50.7%, 26.9%; stage II: 48.1%, 22%). Among resected stage I patients, CA19-9 <98 U/mL was associated with improved OS (< 98: 80.5%, 56%; ≥ 98: 70.2%, 42.8%), and a similar trend was seen in resected stage II patients (< 98: 77.6%, 49.9%; ≥ 98: 71%, 39.2%). Unresected stage I patients with lower CA19-9 had improved OS (< 98: 42.1%, 17.5; ≥ 98: 29.9%, 10%), with similar findings in unresected stage II patients (< 98: 41.1%, 15.3%; ≥ 98: 33.4%, 10.6%). CONCLUSIONS Our study demonstrated the prognostic value of CA19-9 in patients with clinical stage I-II PC, with a value < 98 U/mL demonstrating improved survival. Surgery significantly improved survival at 12 and 24 months irrespective of CA19-9.
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Affiliation(s)
| | | | | | | | | | - Subir Goyal
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Jeffrey M. Switchenko
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA
| | - David A. Kooby
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA
| | - Charles A. Staley
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA
| | - Darren R. Carpizo
- Department of Surgery, University of Rochester, Rochester, NY,Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY
| | - Mihir M. Shah
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA
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Ajay PS, Tsagkalidis V, Casabianca A, Burchard PR, Melucci AD, Chacon A, Goyal S, Switchenko JM, Kooby DA, Carpizo DR, Shah MM. A review of hepatic epithelioid hemangioendothelioma-Analyzing patient characteristics and treatment strategies. J Surg Oncol 2022; 126:1423-1429. [PMID: 35975699 PMCID: PMC9836828 DOI: 10.1002/jso.27066] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 07/30/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Hepatic epithelioid hemangioendothelioma (HEH) is a rare vascular tumor of unknown etiology and unpredictable natural history. To date, no large-scale studies have been published evaluating this disease due to its rare occurrence. METHODS The National Cancer Database was reviewed between 2004 and 2016 to identify patients with HEH. Univariate analysis with overall survival (OS) was performed by Cox proportional hazards model. Kaplan-Meier method was used to create OS curves and compared using the log-rank test. RESULTS We identified 229 patients with HEH. The majority of patients were female (61.1%), white (84.3%), and had a Charlson-Deyo score of 0 (75%). Chemotherapeutic intervention was seen in 26% of the patients while 33% received surgical intervention in the form of wedge/segmental liver resection (n = 27), hepatectomy lobectomy/extended lobectomy (n = 18), and liver transplant (n = 22). Five-year survival in surgical patients was 90.5%, 66.5% and 81%, respectively (p = 0.485). Age greater than 55 years (hazard ratio [HR], 2.78; p < 0.001), Asian ethnicity compared to white (HR, 2.84; p = 0.012), and a higher Charlson-Deyo score (score 1: HR, 2.28; p < 0.001 and score ≥2: HR, 2.76; p = 0.011) were associated with worse OS. CONCLUSION Treatment for HEH remains variable with only a third of the patients undergoing surgery. International collaboration is necessary to determine the optimal treatment for this rare disease.
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Affiliation(s)
- Pranay S. Ajay
- Division of Surgical Oncology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Vasileios Tsagkalidis
- Department of Surgery, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Anthony Casabianca
- Department of Surgery, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Paul R. Burchard
- Department of Surgery, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Alexa D. Melucci
- Department of Surgery, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Alexander Chacon
- Department of Surgery, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Subir Goyal
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Jeffrey M. Switchenko
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - David A. Kooby
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Darren R. Carpizo
- Division of Surgical Oncology, Wilmot Caner Center, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Mihir M. Shah
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
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Chacon AC, Melucci AD, Ullman NA, Burchard P, Casabianca AS, Reitz A, Swift DA, Tsagkalidis V, Switchenko JM, Goyal S, Carpizo DR, Shah MM. Association of suboptimal lymph node yield with inferior survival in resected stage 1 colon cancer patients. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.3601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3601 Background: A minimum of 12 lymph nodes are required during colectomy to accurately stage colon cancer. Prior studies in stage II colon cancer patients demonstrate association of inadequate lymph node examination (LNE) with worse overall survival (OS). No large-scale analogous studies related to LNE have been completed in stage I colon cancer patients. We evaluated patients with stage I colon cancer to determine the association between lymph node yield and OS. Methods: We reviewed the National Cancer Database between 2004-2015 to identify patients with pathologic stage I colon cancer (pT1N0 or pT2N0) who underwent definitive surgical resection. Patients who received radiation therapy or had missing values were excluded. Clinical and demographic characteristics were analyzed. Based on LNE, patients were stratified into 4 cohorts (LNE, 0-5, 6-11, 12-19, 20+) and 2 cohorts (0-11, 12+). Univariable and multivariable analyses were performed to identify variables associated with OS. Kaplan-Meier survival curves were computed to compare the cohorts. Results: We included 81,909 patients for analyses. Median age at diagnosis was 69. A majority were female (51.1%), white (83.8%), received care in a community cancer program (59.5%), and had a Charlson-Deyo score of 0 (66.6%). Only 0.7% of patients had a margin positive resection with a 2.5cm median tumor size. Patients were similarly split between pT1 and pT2. Suboptimal LNE was noted in 27.8% of patients. Patients with LNE were distributed - 10.7% (0-5), 17.1% (6-11), 43.4% (12-19) and 28.9% (20+). Postoperative 30-day mortality was 1.9%. 521 (0.7%) received systemic therapy. Ten-year survival in patients with 0-5 LNE was 52.8% compared to 60.1% with 20+ LNE. On multivariable analyses, patients aged ≥ 69, male sex, increasing tumor size (quartile), pT2 staging and a higher Charlson-Deyo score independently predicted worse OS (p < 0.001). LNE categories were significantly associated with OS (p < 0.001) (Table). On regrouping into 0-11 and 12+ LNE groups, 0-11 LNE group predicted worse OS (HR 1.22, p < 0.001). On multivariable analysis, the above variables continued to show similar association with OS (p < 0.001). Conclusions: Our study demonstrates that lymph node yield is associated with overall survival in patients with stage 1 colon cancer undergoing surgical resection. Furthermore, patients with suboptimal lymph node yield are associated with an inferior overall survival compared to those with optimal lymph node yield. Moreover, this study finds that a large number of patients ( > 25%) continue to have suboptimal lymph node yields. Future efforts should focus on improving the lymph node yield with optimal efforts by the surgeon and pathologist. Future studies should examine the role of systemic therapy in patients with inadequate lymph node yield.[Table: see text]
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Affiliation(s)
| | | | | | - Paul Burchard
- University of Rochester Medical Center, Rochester, NY
| | | | | | | | | | | | - Subir Goyal
- Winship Cancer Institute and Rollins School of Public Health at Emory University, Atlanta, GA
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