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Dohner E, Kierdorf FJ, Langer R, Zuber M, Fahrner R. Retrospective analysis of the incidence of appendiceal neoplasm and malignancy in patients treated for suspected acute appendicitis. BMC Surg 2024; 24:121. [PMID: 38658891 PMCID: PMC11040831 DOI: 10.1186/s12893-024-02412-4] [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] [Received: 10/12/2023] [Accepted: 04/10/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND Nonoperative management of uncomplicated appendicitis is currently being promoted as treatment option, albeit 0.7-2.5% of appendectomies performed due to suspected acute appendicitis show histologically malignant findings. The purpose of this study was to investigate the incidence of neoplasm and malignancy of the appendix in patients presenting with suspected acute appendicitis in real world setting. METHODS This is a retrospective single-centre investigation of 457 patients undergoing appendectomy between the years 2017-2020. The patients' demographics, symptoms and diagnosis, intraoperative findings, and histopathological results were analysed. RESULTS In 3.7% (n = 17) histological analysis revealed neoplasms or malignancies. Median age was 48 years (20-90 years), without sex predominance. Leukocytes (11.3 ± 3.7 G/l) and C-reactive protein (54.2 ± 69.0 mg/l) were elevated. Histological analysis revealed low-grade mucinous appendiceal neoplasia (n = 3), sessile serrated adenoma of the appendix (n = 3), neuroendocrine tumours (n = 7), appendiceal adenocarcinoma of intestinal type (n = 3), and goblet cell carcinoma (n = 1). Additional treatment varied between no treatment or follow-up due to early tumour stage (n = 4), follow-up care (n = 3), additional surgical treatment (n = 8), or best supportive care (n = 2). CONCLUSIONS Preoperative diagnosis of appendiceal tumours is difficult. Nonoperative management of patients with acute, uncomplicated appendicitis potentially prevents the correct diagnosis of malignant appendiceal pathologies. Therefore, close follow-up or surgical removal of the appendix is mandatory.
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Affiliation(s)
- Eliane Dohner
- Department of Surgery, Bürgerspital Solothurn, Solothurn, Switzerland
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, Bern, Switzerland
| | | | - Rupert Langer
- Institute of Pathology and Molecular Pathology, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Markus Zuber
- Department of Surgery, Bürgerspital Solothurn, Solothurn, Switzerland
- Clarunis University Center for Gastrointestinal and Liver Diseases, St. Clara Hospital Basel and University Hospital, Basel, Switzerland
| | - René Fahrner
- Department of Surgery, Bürgerspital Solothurn, Solothurn, Switzerland.
- Department of Vascular Surgery, University Hospital Bern, University of Bern, Bern, Switzerland.
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Fransvea P, Puccioni C, Altieri G, D'Agostino L, Costa G, Tropeano G, La Greca A, Brisinda G, Sganga G. Beyond acute appendicitis: a single-institution experience of unexpected pathology findings after 989 consecutive emergency appendectomy. Langenbecks Arch Surg 2024; 409:87. [PMID: 38441707 DOI: 10.1007/s00423-024-03277-0] [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] [Received: 12/05/2023] [Accepted: 02/27/2024] [Indexed: 03/07/2024]
Abstract
INTRODUCTION Appendiceal neoplasms (ANs) are rare, with an estimated incidence of around 1%: neuroendocrine tumours (NETs) and low-grade appendiceal mucinous neoplasms (LAMNs) comprise most cases. Most tumours are cured by appendectomy alone, although some require right hemicolectomy and intra-operative chemotherapy. The aim of the present study is to evaluate our institution's experience in terms of the prevalence of AN, their histological types, treatment and outcomes in adult patients undergoing emergency appendectomy. MATERIAL AND METHODS Single-centre retrospective cohort analysis of patients treated for acute appendicitis at a large academic medical centre. Patients with a diagnosis of acute appendicitis (AA) where further compared with patients with acute appendicitis and a histologically confirmed diagnosis of appendiceal neoplasm (AN). RESULTS A diagnosis of acute appendicitis was made in 1200 patients. Of these, 989 patients underwent emergency appendectomy. The overall incidence of appendiceal neoplasm was 9.3% (92 patients). AN rate increased with increasing age. Patients under the age of 30 had a 3.8% (14/367 patients) rate of occult neoplasm, whereas patients between 40 and 89 years and older had a 13.0% rate of neoplasm. No difference was found in clinical presentations and type of approach while we found a lower complicated appendicitis rate in the AN group. CONCLUSION ANs are less rare with respect to the literature; however, clinically, there are no specific signs of suspicious and simple appendicectomy appears to be curative in most cases. However, age plays an important role; older patients are at higher risk for AN. ANs still challenge the non-operative management concept introduced into the surgical literature.
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Affiliation(s)
- Pietro Fransvea
- Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy.
- Università Cattolica del Sacro Cuore Roma Italia, Rome, Italy.
| | - Caterina Puccioni
- Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
- Università Cattolica del Sacro Cuore Roma Italia, Rome, Italy
| | - Gaia Altieri
- Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
| | - Luca D'Agostino
- Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
| | - Gianluca Costa
- Surgery Center, Colorectal Surgery Clinical and Research Unit - Fondazione Policlinico Universitario Campus Bio-Medico, University Campus Bio-Medico of Rome, Rome, Italy
| | - Giuseppe Tropeano
- Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
| | - Antonio La Greca
- Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
- Università Cattolica del Sacro Cuore Roma Italia, Rome, Italy
| | - Giuseppe Brisinda
- Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
- Università Cattolica del Sacro Cuore Roma Italia, Rome, Italy
| | - Gabriele Sganga
- Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
- Università Cattolica del Sacro Cuore Roma Italia, Rome, Italy
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Butts CA, Byerly S, Nahmias J, Gelbard R, Ziesmann M, Bruns B, Davidson GH, Di Saverio S, Esposito TJ, Fischkoff K, Joseph B, Kaafarani H, Mentula P, Podda M, Sakran JV, Salminen P, Sammalkorpi H, Sawyer RG, Skeete D, Tesoriero R, Yeh DD. A core outcome set for appendicitis: A consensus approach utilizing modified Delphi methodology. J Trauma Acute Care Surg 2024; 96:487-492. [PMID: 37751156 DOI: 10.1097/ta.0000000000004144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
BACKGROUND Appendicitis is one of the most common pathologies encountered by general and acute care surgeons. The current literature is inconsistent, as it is fraught with outcome heterogeneity, especially in the area of nonoperative management. We sought to develop a core outcome set (COS) for future appendicitis studies to facilitate outcome standardization and future data pooling. METHODS A modified Delphi study was conducted after identification of content experts in the field of appendicitis using both the Eastern Association for the Surgery of Trauma (EAST) landmark appendicitis articles and consensus from the EAST ad hoc COS taskforce on appendicitis. The study incorporated three rounds. Round 1 utilized free text outcome suggestions, then in rounds 2 and 3 the suggests were scored using a Likert scale of 1 to 9 with 1 to 3 denoting a less important outcome, 4 to 6 denoting an important but noncritical outcome, and 7 to 9 denoting a critically important outcome. Core outcome status consensus was defined a priori as >70% of scores 7 to 9 and <15% of scores 1 to 3. RESULTS Seventeen panelists initially agreed to participate in the study with 16 completing the process (94%). Thirty-two unique potential outcomes were initially suggested in round 1 and 10 (31%) met consensus with one outcome meeting exclusion at the end of round 2. At completion of round 3, a total of 17 (53%) outcomes achieved COS consensus. CONCLUSION An international panel of 16 appendicitis experts achieved consensus on 17 core outcomes that should be incorporated into future appendicitis studies as a minimum set of standardized outcomes to help frame future cohort-based studies on appendicitis. LEVEL OF EVIDENCE Diagnostic Test or Criteria; Level V.
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Affiliation(s)
- Christopher A Butts
- From the Division of Trauma, Acute Care Surgery & Surgical Critical Care (C.A.B.), Department of Surgery, Reading Hospital-Tower Health, West Reading, Pennsylvania; Department of Surgery, University of Tennessee Health Science Center (S.B.), Memphis, Tennessee; UC Irvine Healthcare, Orange (J.N.), California; Department of Surgery, University of Alabama at Birmingham (R.G.), Birmingham, Alabama; University of Manitoba, Winnipeg (M.Z.), Manitoba, Canada; Department of Surgery, University of Texas Southwestern, Dallas (B.B.), Texas; Department of Surgery, University of Washington, Seattle (G.H.D.), Washington; AST5 ASR Marche, Hospital Madonna del Soccorso (S.D.S.), San Benedetto del Tronto, Italy; Department of Medicine, University of Illinois School of Medicine (T.J.E.), Peoria, Illinois; Department of Surgery, Columbia University Irving Medical Center (K.F.), New York, New York; Division of Trauma, Critical Care, Burns, and Emergency Surgery, Department of Surgery (B.J.), College of Medicine, University of Arizona, Tuscon, Arizona; Trauma, Emergency Surgery, and Surgical Critical Care (H.K.), Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; Department of Gastroenterological Surgery (P.M., H.S.), Helsinki University Hospital, Helsinki, Finland; Department of General and Emergency Surgery (M.P.), Cagliari University Hospital, Cagliari, Italy; Division of Acute Care Surgery, Department of Surgery (J.V.S.), Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Surgery (P.S.), University of Turku, Turku, Finland; Department of Surgery, Western Michigan University School of Medicine: Western Michigan University Homer Stryker MD School of Medicine (R.G.S.), Kalamazoo, Michigan; Roy J. and Lucille A. Carver College of Medicine (D.S.), University of Iowa, Iowa City, Iowa; Division of General Surgery, Trauma and Surgical Critical Care, Acute Care Surgery (R.T.), Zuckerberg San Francisco General Hospital, San Francisco, California; and Ernest E Moore Shock Trauma Center at Denver Health (D.D.Y.), University of Colorado, Denver, Colorado
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Bonomi AM, Ferrario L, Frontali A, Danelli P, Colombo F. Appendiceal Mucinous Neoplasms and Inflammatory Bowel Disease: Systematic Review of the Literature. J Clin Med 2023; 13:191. [PMID: 38202199 PMCID: PMC10780220 DOI: 10.3390/jcm13010191] [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: 12/06/2023] [Revised: 12/23/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
There is no clear evidence on the prevalence and clinical presentation of appendiceal mucinous neoplasm (AMN) among patients with inflammatory bowel disease (IBD), so a systematic review was performed to investigate the diagnosis, management and treatment of AMN in these patients. PubMed, Medline, Scopus and the Cochrane Library were searched for articles published up to September 2023. Twenty-three studies reporting data about 34 AMN patients were included. UC patients had a median age of 52 years and a median length of disease of 10 years; CD patients had a median age of 40.5 years and a median length of disease of 5 years. A pre-operative diagnosis was achieved in 44% of patients. Most patients were symptomatic (82.6%) and showed moderate-severe disease activity (61%). Surgical procedures were performed: laparoscopic appendectomy, ileocecal resection, right hemicolectomy and colectomy/proctocolectomy. Of the patients, 73.5% were diagnosed with low-grade mucinous neoplasm (LAMN) and nine with adenocarcinoma. Synchronous colorectal dysplasia/carcinoma was present in 23.5% of patients. IBD patients with long-standing disease should be routinely screened, not only for colorectal cancer but also for AMN, during gastro-enterologic follow-up. Laparoscopic appendectomy of unruptured LAMN as well as right hemicolectomy of non-metastatic adenocarcinoma are safe procedures in IBD patients.
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Affiliation(s)
- Alessandro Michele Bonomi
- Department of General Surgery, Department of Biomedical and Clinical Sciences “L. Sacco”, University of Milan, ASST Fatebenefratelli Sacco, 20157 Milan, Italy; (A.M.B.)
| | - Luca Ferrario
- Department of General Surgery, Department of Biomedical and Clinical Sciences “L. Sacco”, University of Milan, ASST Fatebenefratelli Sacco, 20157 Milan, Italy; (A.M.B.)
| | - Alice Frontali
- Coloproctology and Inflammatory Bowel Disease Surgery Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy
| | - Piergiorgio Danelli
- Department of General Surgery, Department of Biomedical and Clinical Sciences “L. Sacco”, University of Milan, ASST Fatebenefratelli Sacco, 20157 Milan, Italy; (A.M.B.)
| | - Francesco Colombo
- Department of General Surgery, Department of Biomedical and Clinical Sciences “L. Sacco”, University of Milan, ASST Fatebenefratelli Sacco, 20157 Milan, Italy; (A.M.B.)
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