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Ruggeri RM, Benevento E, De Cicco F, Fazzalari B, Guadagno E, Hasballa I, Tarsitano MG, Isidori AM, Colao A, Faggiano A. Neuroendocrine neoplasms in the context of inherited tumor syndromes: a reappraisal focused on targeted therapies. J Endocrinol Invest 2023; 46:213-234. [PMID: 36038743 DOI: 10.1007/s40618-022-01905-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/16/2022] [Indexed: 01/25/2023]
Abstract
PURPOSE Neuroendocrine neoplasms can occur as part of inherited disorders, usually in the form of well-differentiated, slow-growing tumors (NET). The main predisposing syndromes include: multiple endocrine neoplasias type 1 (MEN1), associated with a large spectrum of gastroenteropancreatic and thoracic NETs, and type 4 (MEN4), associated with a wide tumour spectrum similar to that of MEN1; von Hippel-Lindau syndrome (VHL), tuberous sclerosis (TSC), and neurofibromatosis 1 (NF-1), associated with pancreatic NETs. In the present review, we propose a reappraisal of the genetic basis and clinical features of gastroenteropancreatic and thoracic NETs in the setting of inherited syndromes with a special focus on molecularly targeted therapies for these lesions. METHODS Literature search was systematically performed through online databases, including MEDLINE (via PubMed), and Scopus using multiple keywords' combinations up to June 2022. RESULTS Somatostatin analogues (SSAs) remain the mainstay of systemic treatment for NETs, and radiolabelled SSAs can be used for peptide-receptor radionuclide therapy for somatostatin receptor (SSTR)-positive NETs. Apart of these SSTR-targeted therapies, other targeted agents have been approved for NETs: the mTOR inhibitor everolimus for lung, gastroenteropatic and unknown origin NET, and sunitinib, an antiangiogenic tyrosine kinase inhibitor, for pancreatic NET. Novel targeted therapies with other antiangiogenic agents and immunotherapies have been also under evaluation. CONCLUSIONS Major advances in the understanding of genetic and epigenetic mechanisms of NET development in the context of inherited endocrine disorders have led to the recognition of molecular targetable alterations, providing a rationale for the implementation of treatments and development of novel targeted therapies.
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Affiliation(s)
- R M Ruggeri
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Messina, AOU Policlinico "Gaetano Martino" University Hospital, 98125, Messina, Italy.
| | - E Benevento
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - F De Cicco
- SSD Endocrine Disease and Diabetology, ASL TO3, Pinerolo, TO, Italy
| | - B Fazzalari
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, ENETS Center of Excellence, Sapienza University of Rome, Rome, Italy
| | - E Guadagno
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - I Hasballa
- Endocrinology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - M G Tarsitano
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - A M Isidori
- Gruppo NETTARE, Policlinico Umberto I, Università Sapienza, Rome, Italy
| | - A Colao
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
- UNESCO Chair "Education for Health and Sustainable Development", Federico II University, Naples, Italy
| | - A Faggiano
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, ENETS Center of Excellence, Sapienza University of Rome, Rome, Italy
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2
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Canakis A, Lee LS. Current updates and future directions in diagnosis and management of gastroenteropancreatic neuroendocrine neoplasms. World J Gastrointest Endosc 2022; 14:267-290. [PMID: 35719897 PMCID: PMC9157694 DOI: 10.4253/wjge.v14.i5.267] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/14/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023] Open
Abstract
Gastroenteropancreatic neuroendocrine neoplasms are a heterogenous group of rare neoplasms that are increasingly being discovered, often incidentally, throughout the gastrointestinal tract with varying degrees of activity and malignant potential. Confusing nomenclature has added to the complexity of managing these lesions. The term carcinoid tumor and embryonic classification have been replaced with gastroenteropancreatic neuroendocrine neoplasm, which includes gastrointestinal neuroendocrine and pancreatic neuroendocrine neoplasms. A comprehensive multidisciplinary approach is important for clinicians to diagnose, stage and manage these lesions. While histological diagnosis is the gold standard, recent advancements in endoscopy, conventional imaging, functional imaging, and serum biomarkers complement histology for tailoring specific treatment options. In light of developing technology, our review sets out to characterize diagnostic and therapeutic advancements for managing gastroenteropancreatic neuroendocrine tumors, including innovations in radiolabeled peptide imaging, circulating biomarkers, and endoscopic treatment approaches adapted to different locations throughout the gastrointestinal system.
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Affiliation(s)
- Andrew Canakis
- Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD 21201, United States
| | - Linda S Lee
- Division of Gastroenterology Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, United States
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3
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Somatostatin and Its Receptor System in Colorectal Cancer. Biomedicines 2021; 9:biomedicines9111743. [PMID: 34829972 PMCID: PMC8615525 DOI: 10.3390/biomedicines9111743] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 12/14/2022] Open
Abstract
Somatostatin (SST)/somatotropin release-inhibiting factor (SRIF) is a well-known neuropeptide, widely distributed in the central and peripheral nervous systems, that regulates the endocrine system and affects neurotransmission via interaction with five SST receptors (SST1-5). In the gastrointestinal tract, the main SST-producing cells include intestinal enteroendocrine cells (EECs) restricted to the mucosa, and neurons of the submucosal and myenteric plexuses. The action of the SRIF system is based on the inhibition of endocrine and exocrine secretion, as well as the proliferative responses of target cells. The SST1–5 share common signaling pathways, and are not only widely expressed on normal tissues, but also frequently overexpressed by several tumors, particularly neuroendocrine neoplasms (NENs). Furthermore, the SRIF system represents the only peptide/G protein-coupled receptor (GPCR) system with multiple approved clinical applications for the diagnosis and treatment of several NENs. The role of the SRIF system in the histogenesis of colorectal cancer (CRC) subtypes (e.g., adenocarcinoma and signet ring-cell carcinoma), as well as diagnosis and prognosis of mixed adenoneuroendocrine carcinoma (MANEC) and pure adenocarcinoma, is poorly understood. Moreover, the impact of the SRIF system signaling on CRC cell proliferation and its potential role in the progression of this cancer remains unknown. Therefore, this review summarizes the recent collective knowledge and understanding of the clinical significance of the SRIF system signaling in CRC, aiming to evaluate the potential role of its components in CRC histogenesis, diagnosis, and potential therapy.
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4
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Yozgat A, Kekilli M, Altay M. Time to give up traditional methods for the management of gastrointestinal neuroendocrine tumours. World J Clin Cases 2021; 9:8627-8646. [PMID: 34734042 PMCID: PMC8546836 DOI: 10.12998/wjcc.v9.i29.8627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/19/2021] [Accepted: 08/24/2021] [Indexed: 02/06/2023] Open
Abstract
Neuroendocrine tumors (NETs) are a rare and heterogeneous disease group and constitute 0.5% of all malignancies. The annual incidence of NETs is increasing worldwide. The reason for the increase in the incidence of NETs is the detection of benign lesions, incidental detection due to the highest use of endoscopic and imaging procedures, and higher recognition rates of pathologists. There have been exciting developments regarding NET biology in recent years. Among these, first of all, somatostatin receptors and downstream pathways in neuroendocrine cells have been found to be important regulatory mechanisms for protein synthesis, hormone secretion, and proliferation. Subsequently, activation of the mammalian target of rapamycin pathway was found to be an important mechanism in angiogenesis and tumor survival and cell metabolism. Finally, the importance of proangiogenic factors (platelet-derived growth factor, vascular endothelial growth factor, fibroblastic growth factor, angiopoietin, and semaphorins) in the progression of NET has been determined. Using the combination of biomarkers and imaging methods allows early evaluation of the appropriateness of treatment and response to treatment.
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Affiliation(s)
- Ahmet Yozgat
- Department of Gastroenterology, Ufuk University, Ankara, 06510, Turkey
| | - Murat Kekilli
- Department of Gastroenterology, Gazi University, Ankara 06560, Turkey
| | - Mustafa Altay
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Keçiören Health Administration and Research Center, Ankara 06190, Turkey
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5
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Abstract
Neuroendocrine neoplasms of the colon and rectum are rare, although surgeons are likely to encounter appendiceal neuroendocrine tumors while caring for patients with appendicitis. Surgery remains the primary treatment, provided disease is resectable, although for small rectal lesions endoscopic resection is often sufficient. Metastastic disease has a variety of treatment options. Poorly differentiated neuroendocrine carcinomas continue to have a poor prognosis.
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Affiliation(s)
- Jennifer Hrabe
- Colorectal Surgery, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA.
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A Case of Profound Secretory Diarrhea Revealing 2 Primary Neuroendocrine Tumors. ACG Case Rep J 2021; 8:e00625. [PMID: 34258305 PMCID: PMC8270576 DOI: 10.14309/crj.0000000000000625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 03/30/2021] [Indexed: 11/23/2022] Open
Abstract
Neuroendocrine tumors (NETs) are unusual neoplasms with a diverse spectrum of clinical presentations. There is a lack of literature on cases of 2 primary histologically distinct NETs. We report a case of a 40-year-old man who presented with chronic diarrhea. A colonoscopy was performed which discovered a rectal polyp, with pathology showing a well-differentiated NET. A subsequent somatostatin scan revealed a pancreatic tail mass. Biopsy showed a histologically distinct well-differentiated vasoactive intestinal peptide-producing NET. Given that pancreatic and rectal NETs come from different embryonic origins, the diagnosis of 2 primary NETs presents a unique case.
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Mahoney RC, Awad K, Maldini G. Metastatic neuroendocrine tumor with metastases to the right liver in a patient with absent left portal vein. J Surg Case Rep 2021; 2021:rjab207. [PMID: 34055294 PMCID: PMC8159266 DOI: 10.1093/jscr/rjab207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/24/2021] [Indexed: 11/14/2022] Open
Abstract
The patient is a 50-year-old female that underwent routine screening colonoscopy during which she was found to have a neuroendocrine tumor in the right colon. The patient underwent computed tomography and magnetic resonance imaging scans that demonstrated metastatic disease in segments 5 and 7 of the liver. Notably, the patient was found to have an absent left portal vein. The metastatic lesions abut the right portal vein; the right portal vein also supplies the left lobe of the liver in place of an absent left portal vein. She underwent a laparoscopic-assisted right hemicolectomy to remove the primary tumor. The patient recovered uneventfully from surgery and is currently being monitored by a multidisciplinary team regarding her metastatic disease. Neuroendocrine tumors can cause long-term effects on health and ultimately death if left untreated. We present a case of metastatic midgut neuroendocrine tumor that has metastasized to the liver in a patient with absent left portal vein.
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Affiliation(s)
- Reid C Mahoney
- Department of Surgery, University of Hawai'i John A. Burns School of Medicine, Honolulu, HI, USA
| | - Kyrillos Awad
- Department of Surgery, University of Hawai'i John A. Burns School of Medicine, Honolulu, HI, USA
| | - Gregorio Maldini
- Department of Surgery, University of Hawai'i John A. Burns School of Medicine, Honolulu, HI, USA
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Mirallas O, Saoudi N, Gómez-Puerto D, Riveiro-Barciela M, Merino X, Auger C, Landolfi S, Blanco L, Garcia-Burillo A, Molero X, Salcedo-Allende MT, Capdevila J. Acquired hepatocerebral degeneration in a metastatic neuroendocrine tumor long-term survivor — an update on neuroendocrine neoplasm’s treatment: A case report. World J Hepatol 2021; 13:611-619. [PMID: 34131474 PMCID: PMC8173341 DOI: 10.4254/wjh.v13.i5.611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 02/04/2021] [Accepted: 04/09/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Metastatic small bowel low-grade neuroendocrine tumors (NETs) have a good prognosis. Surgery is the only curative treatment; however, this may induce advanced liver disease, particularly in long-term survivor patients. Acquired hepatocerebral degeneration or Parkinsonism in cirrhosis is characterized by rapidly progressive extrapyramidal symptoms in patients with advanced liver disease.
CASE SUMMARY A 70-year-old man presented to the emergency department with diminished consciousness and disorientation, and was diagnosed with hepatic encephalopathy. The patient was diagnosed in 1993 with a metastatic small bowel NET, for which he twice underwent hepatic surgery, with metastatic resection in 1993 and a right hepatectomy in 2002 to remove two hepatic metastases. In 2003, the patient started first-line chemotherapy and in 2004 started the first of three consecutive biological treatments, followed by radio-molecular therapy, achieving stable disease for 14 years. Disease progression was identified and he underwent an endoscopic retrograde cholangiopancreatography. However, in 2019 advanced liver disease was identified. We diagnosed the development of acquired hepatocerebral degeneration, an unusual long-term side effect after multiple hepatic procedures.
CONCLUSION The importance of regular and ongoing surveillance in long-term NET survivors who undergo hepatic procedures should be integrated into the therapeutic management plan, as some of these negative outcomes could be prevented.
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Affiliation(s)
- Oriol Mirallas
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall Hebron Institute of Oncology, Barcelona 08035, Catalunya, Spain
| | - Nadia Saoudi
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall Hebron Institute of Oncology, Barcelona 08035, Catalunya, Spain
| | - Diego Gómez-Puerto
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall Hebron Institute of Oncology, Barcelona 08035, Catalunya, Spain
| | - Mar Riveiro-Barciela
- Liver Unit, Department of Internal Medicine, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona 08035, Catalunya, Spain
| | - Xavier Merino
- Radiodiagnostic Department, Vall d’Hebron University Hospital, Barcelona 08035, Catalunya, Spain
| | - Cristina Auger
- Radiodiagnostic Department, Vall d’Hebron University Hospital, Barcelona 08035, Catalunya, Spain
| | - Stefania Landolfi
- Pathology Department, Vall d'Hebron University Hospital, Barcelona 08035, Catalunya, Spain
| | - Laia Blanco
- Hepatobiliopancreatic Surgery and Transplantation Department, Vall d'Hebron University Hospital, Barcelona 08034, Catalunya, Spain
| | - Amparo Garcia-Burillo
- Nuclear Medicine Department, Vall d'Hebron University Hospital, Barcelona 08035, Catalunya, Spain
| | - Xavier Molero
- Hepatobiliopancreatic Surgery and Transplantation Department, Vall d'Hebron University Hospital, Barcelona 08034, Catalunya, Spain
| | | | - Jaume Capdevila
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall Hebron Institute of Oncology, Barcelona 08035, Catalunya, Spain
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Lim JY, Pommier RF. Clinical Features, Management, and Molecular Characteristics of Familial Small Bowel Neuroendocrine Tumors. Front Endocrinol (Lausanne) 2021; 12:622693. [PMID: 33732215 PMCID: PMC7959745 DOI: 10.3389/fendo.2021.622693] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/21/2021] [Indexed: 12/14/2022] Open
Abstract
Small bowel neuroendocrine tumors are rare tumors with an increasing incidence over the last several decades. Early detection remains challenging because patients commonly develop symptoms late in the disease course, often after the tumors have metastasized. Although these tumors were thought to arise from sporadic genetic mutations, large epidemiological studies strongly support genetic predisposition and increased risk of disease in affected families. Recent studies of familial small bowel neuroendocrine tumors have identified several novel genetic mutations. Screening for familial small bowel neuroendocrine tumors can lead to earlier diagnosis and improved patient outcomes. This review aims to summarize the current knowledge of molecular changes seen in familial small bowel neuroendocrine tumors, identify clinical features specific to familial disease, and provide strategies for screening and treatment.
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10
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Osagiede O, Habermann E, Day C, Gabriel E, Merchea A, Lemini R, Jabbal IS, Colibaseanu DT. Factors associated with worse outcomes for colorectal neuroendocrine tumors in radical versus local resections. J Gastrointest Oncol 2020; 11:836-846. [PMID: 33209480 DOI: 10.21037/jgo-20-193] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Colorectal neuroendocrine tumors (NETs) are the most common NETs of the gastrointestinal tract. Due to the rarity, colorectal NETs are understudied and are not clearly understood. Our study sought to identify the factors associated with worse outcomes for colorectal NETs following resection. Methods We identified patients diagnosed with colorectal NETs [2004-2014] who underwent resection from the National Cancer Data Base. Non-NETs were excluded. Overall survival (OS) was evaluated using the Kaplan Meier method. Cox proportional hazards and logistic regression models were used to assess factors associated with radical versus local resection, OS and LOS. Results A total of 7,967 colon and 11,929 rectal NETs were analyzed. The majority of colon (93.4%) and rectal (89.1%) NETs underwent radical and local resection respectively. The 5-year OS was 69% and 92% for colon and rectal NETs respectively. Older age (OR 1.45, CI 1.37-1.53) and clinical stage 4 (OR 9.91, CI 4.56-21.52) were associated with higher odds for colonic radical resection. Lowest median income quartile (OR 1.41, CI 1.21-1.64) and African Americans (OR 1.26, CI 1.07-1.49) experienced higher mortality for colon and rectal NETs respectively. Conclusions Racial minority and low-income patients experience worse outcomes for colorectal NETs following resection.
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Affiliation(s)
- Osayande Osagiede
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, NY, USA
| | - Elizabeth Habermann
- Division of Health Care Policy and Research, Mayo Clinic, Rochester, MN, USA
| | - Courtney Day
- Division of Health Care Policy and Research, Mayo Clinic, Rochester, MN, USA
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Abstract
Neuroendocrine neoplasms (NENs) of the gastrointestinal (GI) tract and pancreas are a rare and heterogeneous group of neoplasms characterized by common cellular features as well as unique site-specific traits. GI and pancreatic NENs are much rarer than the more common adenocarcinomas arising at these sites. However, the incidences of GI and pancreatic NENs have increased significantly, particularly in the stomach and common site, followed by rectum, appendix, colon, and stomach. Pancreatic NENs are also uncommon, with fewer than 1 per 100,000, accounting for 1% to 2% of all pancreatic neoplasms.
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12
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Scoville SD, Xourafas D, Ejaz AM, Tsung A, Pawlik T, Cloyd JM. Contemporary indications for and outcomes of hepatic resection for neuroendocrine liver metastases. World J Gastrointest Surg 2020; 12:159-170. [PMID: 32426095 PMCID: PMC7215975 DOI: 10.4240/wjgs.v12.i4.159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/21/2020] [Accepted: 03/05/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Although surgical resection is associated with the best long-term outcomes for neuroendocrine liver metastases (NELM), the current indications for and outcomes of surgery for NELM from a population perspective are not well understood.
AIM To determine the current indications for and outcomes of liver resection (LR) for NELM using a population-based cohort.
METHODS A retrospective review of the 2014-2017 American College of Surgeons National Surgical Quality Improvement Program and targeted hepatectomy databases was performed to identify patients who underwent LR for NELM. Perioperative characteristics and 30-d morbidity and mortality were analyzed.
RESULTS Among 669 patients who underwent LR for NELM, the median age was 60 (interquartile range: 51-67) and 51% were male. While the number of metastases resected ranged from 1 to 9, the most common (45%) number of tumors resected was one. The majority (68%) of patients had a largest tumor size of < 5 cm. Most patients underwent partial hepatectomy (71%) while fewer underwent a right or left hepatectomy or trisectionectomy. The majority of operations were open (82%) versus laparoscopic (17%) or robotic (1%). In addition, 30% of patients underwent intraoperative ablation while 45% had another concomitant operation including cholecystectomy (28.8%), bowel resection (20.2%), or partial pancreatectomy (3.4%). Overall 30-d morbidity and mortality was 29% and 1.3%, respectively. On multivariate analysis, American Society of Anesthesiologists class ≥ 3 [odds ratios (OR), OR = 2.089, 95% confidence intervals (CI): 1.197-3.645], open approach (OR = 1.867, 95%CI: 1.148-3.036), right hepatectomy (OR = 1.618, 95%CI: 1.014-2.582), and prolonged operative time of > 230 min (OR = 1.731, 95%CI: 1.168-2.565) were associated with higher 30-d morbidity while intraoperative ablation and concomitant procedures were not.
CONCLUSION LR for NELM was performed with relatively low postoperative morbidity and mortality. Concomitant procedures performed at the time of LR did not increase morbidity.
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Affiliation(s)
- Steven D Scoville
- Department of Surgery, Division of Surgical Oncology at The Ohio State University, James Cancer Center, Columbus, OH 43210, United States
- The Arthur G James Comprehensive Cancer Center and Solove Research Institute, The Ohio State University, Columbus, OH 43210, United States
| | - Dimitrios Xourafas
- Department of Surgery, Division of Surgical Oncology at The Ohio State University, James Cancer Center, Columbus, OH 43210, United States
- Department of Surgery, Harvard Medical School, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, United States
| | - Aslam M Ejaz
- Department of Surgery, Division of Surgical Oncology at The Ohio State University, James Cancer Center, Columbus, OH 43210, United States
- Department of Surgery, The Ohio State University, Columbus, OH 43210, United States
| | - Allan Tsung
- Department of Surgery, Division of Surgical Oncology at The Ohio State University, James Cancer Center, Columbus, OH 43210, United States
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, United States
| | - Timothy Pawlik
- Department of Surgery, Division of Surgical Oncology at The Ohio State University, James Cancer Center, Columbus, OH 43210, United States
- Department of Surgery, The Ohio State University, Columbus, OH 43210, United States
| | - Jordan M Cloyd
- Department of Surgery, Division of Surgical Oncology at The Ohio State University, James Cancer Center, Columbus, OH 43210, United States
- Department of Surgery, The Ohio State University, Columbus, OH 43210, United States
- Department of Surgery, Division of Surgical Oncology, The Ohio State University Wexner Medical Center, Columbus, OH 43210, United States
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