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Yazici H, Ugurlu O, Aygul Y, Ugur MA, Sen YK, Yildirim M. Predicting severity of acute appendicitis with machine learning methods: a simple and promising approach for clinicians. BMC Emerg Med 2024; 24:101. [PMID: 38886641 PMCID: PMC11184860 DOI: 10.1186/s12873-024-01023-9] [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: 12/07/2023] [Accepted: 06/12/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUNDS Acute Appendicitis (AA) is one of the most common surgical emergencies worldwide. This study aims to investigate the predictive performances of 6 different Machine Learning (ML) algorithms for simple and complicated AA. METHODS Data regarding operated AA patients between 2012 and 2022 were analyzed retrospectively. Based on operative findings, patients were evaluated under two groups: perforated AA and none-perforated AA. The features that showed statistical significance (p < 0.05) in both univariate and multivariate analysis were included in the prediction models as input features. Five different error metrics and the area under the receiver operating characteristic curve (AUC) were used for model comparison. RESULTS A total number of 1132 patients were included in the study. Patients were divided into training (932 samples), testing (100 samples), and validation (100 samples) sets. Age, gender, neutrophil count, lymphocyte count, Neutrophil to Lymphocyte ratio, total bilirubin, C-Reactive Protein (CRP), Appendix Diameter, and PeriAppendicular Liquid Collection (PALC) were significantly different between the two groups. In the multivariate analysis, age, CRP, and PALC continued to show a significant difference in the perforated AA group. According to univariate and multivariate analysis, two data sets were used in the prediction model. K-Nearest Neighbors and Logistic Regression algorithms achieved the best prediction performance in the validation group with an accuracy of 96%. CONCLUSION The results showed that using only three input features (age, CRP, and PALC), the severity of AA can be predicted with high accuracy. The developed prediction model can be useful in clinical practice.
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Affiliation(s)
- Hilmi Yazici
- General Surgery Department, Marmara University Pendik Research and Training Hospital, Istanbul, Turkey.
| | - Onur Ugurlu
- Faculty of Engineering and Architecture, Izmir Bakircay University, Izmir, Turkey
| | - Yesim Aygul
- Department of Mathematics, Ege University, Izmir, Turkey
| | - Mehmet Alperen Ugur
- General Surgery Department, University of Health Sciences Izmir Bozyaka Research and Training Hospital, Izmir, Turkey
| | - Yigit Kaan Sen
- General Surgery Department, University of Health Sciences Izmir Bozyaka Research and Training Hospital, Izmir, Turkey
| | - Mehmet Yildirim
- General Surgery Department, University of Health Sciences Izmir Bozyaka Research and Training Hospital, Izmir, Turkey
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Stolarski Ł, Zawada T, Tokarczyk W, Patrzałek P. Unusual Acute Appendicitis Complicated by Sepsis, Evisceration, and Ileostomy: A Case Report. Cureus 2024; 16:e60360. [PMID: 38883094 PMCID: PMC11177243 DOI: 10.7759/cureus.60360] [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] [Accepted: 05/15/2024] [Indexed: 06/18/2024] Open
Abstract
Acute appendicitis stands as a prevalent cause necessitating surgical intervention globally, predominantly affecting young adults and children, with notably lower incidence among the elderly. Timely diagnosis facilitates effective management, mitigating the risk of severe complications. In this report, we present the case of a 59-year-old patient whose delayed diagnosis and consequently delayed surgical treatment led to serious complications. After the appendectomy, the patient, due to developing sepsis, was transferred to the intensive care unit. On the seventh postoperative day, complications were found in the form of wound dehiscence along with perforation of the jejunum. The second surgery involved a classic laparotomy, encompassing partial resection of the small intestine, and the creation of a single-barrel ileostomy. Further conservative treatment was implemented, and drainage of the abscess was performed. After treatment in the ICU, the patient was transferred to the surgical ward for further treatment. During the hospital stay, further conservative treatment was implemented, resulting in the improvement of the patient's general condition and resolution of symptoms. The patient was discharged home in optimal general condition with recommendations. After six months, the patient was brought to the surgical ward for reconstructive surgery to reestablish gastrointestinal continuity, which was carried out successfully.
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Affiliation(s)
| | - Tomasz Zawada
- Intensive Care Unit, District Hospital in Rawicz, Rawicz, POL
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Gracias D, Siu A, Seth I, Dooreemeah D, Lee A. Exploring the role of an artificial intelligence chatbot on appendicitis management: an experimental study on ChatGPT. ANZ J Surg 2024; 94:342-352. [PMID: 37855397 DOI: 10.1111/ans.18736] [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: 08/05/2023] [Revised: 09/27/2023] [Accepted: 10/02/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Appendicitis is a common surgical condition that requires urgent medical attention. Recent advancements in artificial intelligence and large language processing, such as ChatGPT, have demonstrated potential in supporting healthcare management and scientific research. This study aims to evaluate the accuracy and comprehensiveness of ChatGPT's knowledge on appendicitis management. METHODS Six questions related to appendicitis management were created by experienced RACS qualified general surgeons to assess ChatGPT's ability to provide accurate information. The criteria of ChatGPT answers' accuracy were compared with current healthcare guidelines for appendicitis and subjective evaluation by two RACS qualified General Surgeons. Additionally, ChatGPT was then asked to provide five high level evidence references to support its responses. RESULTS ChatGPT provided clinically relevant information on appendicitis management, however, was inconsistent in doing so and often provided superficial information. Further to this, ChatGPT encountered difficulties in generating relevant references, with some being either non-existent or incorrect. CONCLUSION ChatGPT has the potential to provide timely and comprehensible medical information on appendicitis management to laypersons. However, its issue of inaccuracy in information and production of non-existent or erroneous references presents a challenge for researchers and clinicians who may inadvertently employ such information in their research or healthcare. Therefore, clinicians should exercise caution when using ChatGPT for these purposes.
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Affiliation(s)
- Dylan Gracias
- Department of Surgery, Townsville Hospital, Townsville, Queensland, Australia
| | - Adrian Siu
- Faculty of Medicine and Health, Central Clinical School, The University of Sydney, Sydney, New South Wales, Australia
- Surgical Outcomes Research Centre (SOuRCe), Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
- Concord Institute of Academic Surgery, Concord Hospital, Concord, New South Wales, Australia
| | - Ishith Seth
- Department of Surgery, Peninsula Health, Melbourne, Victoria, Australia
- Department of Surgery, Bendigo Health, Bendigo, Victoria, Australia
| | | | - Angus Lee
- Department of Surgery, Bendigo Health, Bendigo, Victoria, Australia
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Carvalho N, Carolino E, Ferreira M, Coelho H, Santos CR, Barreira AL, Henriques S, Cardoso C, Moita L, Costa PM. Tryptase in Acute Appendicitis: Unveiling Allergic Connections through Compelling Evidence. Int J Mol Sci 2024; 25:1645. [PMID: 38338923 PMCID: PMC10855922 DOI: 10.3390/ijms25031645] [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: 01/02/2024] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
The aetiology of acute appendicitis (AA), the most frequent abdominal surgical emergency, is still unclarified. Recent epidemiologic, clinical and laboratorial data point to an allergic component in the pathophysiology of AA. Mastocytes participate in the Th2 immune response, releasing inflammatory mediators from their granules upon stimulation by IgE-specific antigens. Among the well-known mediators are histamine, serotonin and tryptase, which are responsible for the clinical manifestations of allergies. We conducted a prospective single-centre study to measure histamine and serotonin (commercial ELISA kit) and tryptase (ImmunoCAP System) concentrations in appendicular lavage fluid (ALF) and serum. Consecutive patients presenting to the emergency department with a clinical diagnosis of AA were enrolled: 22 patients with phlegmonous AA and 24 with gangrenous AA The control group was composed of 14 patients referred for colectomy for colon malignancy. Appendectomy was performed during colectomy. Tryptase levels were strikingly different between histological groups, both in ALF and serum (p < 0.001); ALF levels were higher than serum levels. Tryptase concentrations in ALF were 109 times higher in phlegmonous AA (APA) (796.8 (194.1-980.5) pg/mL) and 114 times higher in gangrenous AA (AGA) (837.4 (272.6-1075.1) pg/mL) than in the control group (7.3 (4.5-10.3) pg/mL. For the diagnosis of AA, the discriminative power of serum tryptase concentration was good (AUC = 0.825), but discriminative power was weak (AUC = 0.559) for the differential diagnosis between APA and AGA. Mastocytes are involved in AA during clinical presentations of both phlegmonous and gangrenous appendicitis, and no significant differences in concentration were found. No differences were found in serum and ALF concentrations of histamine and serotonin between histological groups. Due to their short half-lives, these might have elapsed by the time the samples were collected. In future research, these determinations should be made immediately after appendectomy. Our findings confirm the hypersensitivity type I reaction as an event occurring in the pathogenesis of AA: tryptase levels in ALF and serum were higher among patients with AA when compared to the control group, which is in line with a Th2 immune response and supports the concept of the presence of an allergic reaction in the pathogenesis of acute appendicitis. Our results, if confirmed, may have clinical implications for the treatment of AA.
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Affiliation(s)
- Nuno Carvalho
- Serviço Cirurgia Geral, Hospital Garcia de Orta, 2805-267 Almada, Portugal; (M.F.); (A.L.B.); (S.H.); (P.M.C.)
- Faculdade Medicina, Universidade Lisboa, 1649-028 Lisboa, Portugal
| | - Elisabete Carolino
- H & TRC—Health & Technology Research Centre, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1549-020 Lisboa, Portugal;
| | - Margarida Ferreira
- Serviço Cirurgia Geral, Hospital Garcia de Orta, 2805-267 Almada, Portugal; (M.F.); (A.L.B.); (S.H.); (P.M.C.)
- Faculdade Medicina, Universidade Lisboa, 1649-028 Lisboa, Portugal
| | - Hélder Coelho
- Serviço de Anatomia Patológica, Hospital Garcia de Orta, 2805-267 Almada, Portugal;
| | - Catarina Rolo Santos
- Serviço de Cirurgia Geral, Hospital de Nossa Senhora do Rosário, 2830-003 Barreiro, Portugal;
| | - Ana Lúcia Barreira
- Serviço Cirurgia Geral, Hospital Garcia de Orta, 2805-267 Almada, Portugal; (M.F.); (A.L.B.); (S.H.); (P.M.C.)
| | - Susana Henriques
- Serviço Cirurgia Geral, Hospital Garcia de Orta, 2805-267 Almada, Portugal; (M.F.); (A.L.B.); (S.H.); (P.M.C.)
| | - Carlos Cardoso
- Dr. Joaquim Chaves Laboratório de Análises Clínicas, 1495-068 Algés, Portugal;
| | - Luís Moita
- Innate Immunity and Inflammation Lab., Instituto Gulbenkian de Ciência Oeiras, 2780-156 Oeiras, Portugal;
- Instituto de Histologia e Biologia do Desenvolvimento, Faculdade Medicina, Universidade Lisboa, 1649-028 Lisboa, Portugal
| | - Paulo Matos Costa
- Serviço Cirurgia Geral, Hospital Garcia de Orta, 2805-267 Almada, Portugal; (M.F.); (A.L.B.); (S.H.); (P.M.C.)
- Faculdade Medicina, Universidade Lisboa, 1649-028 Lisboa, Portugal
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Caballero-Alvarado J, Lau Torres V, Peralta KL, Zavaleta-Corvera C. Complicated acute appendicitis with compromised appendiceal base: A review of surgical strategies. POLISH JOURNAL OF SURGERY 2023; 96:65-70. [PMID: 38348988 DOI: 10.5604/01.3001.0053.6868] [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] [Indexed: 02/15/2024]
Abstract
<b><br>Introduction:</b> Acute appendicitis is one of the most frequent emergencies in hospitals around the world; it requires early surgical treatment in complicated cases. One of the challenges that the surgeon faces during appendectomy is when the base of the appendix is compromised by either a perforation or gangrene. To show the surgical strategies that have been reported, as well as the complications associated with a compromised appendicular base in a complicated acute appendicitis.</br> <b><br>Methods:</b> A bibliographic search was carried out in the databases of Pubmed, Embase, Web of Science, and Google Scholar. The search expression ("appendiceal stump closure" OR "Closure of the appendiceal stump" OR "Management of appendiceal stump") was used to search for articles. The inclusion criteria were observational studies (case reports, case series, or cross-sectional, case-control, or cohort studies).</br> <b><br>Discussion:</b> Different techniques have been reported for the treatment of a compromised appendicular base. Among the most used are primary closure, partial resection of the cecum, cecostomy tube, ileocecectomy, and right hemicolectomy. The most frequent complications are surgical site infection, intra-abdominal abscess, postoperative ileus, intestinal obstruction, and others.</br> <b><br>Conclusions:</b> The appendicular base, compromised by necrosis or perforation, requires adequate treatment in order to prevent dehiscence of the appendicular stump sutures and fecal peritonitis. A number of surgical options have been reported.</br>.
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Affiliation(s)
- Jose Caballero-Alvarado
- Surgery Department, Regional Hospital of Trujillo, Trujillo, Peru, School of Medicine, Antenor Orrego Private University, Trujillo, Peru
| | - Victor Lau Torres
- Surgery Department, Regional Hospital of Trujillo, Trujillo, Peru, School of Medicine, Nacional University of Trujillo, Trujillo, Peru
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Alajaimi J, Almansoor M, Almutawa A, Almusalam MM, Bakry H. Are Antibiotics the New Appendectomy? Cureus 2023; 15:e44506. [PMID: 37790034 PMCID: PMC10544542 DOI: 10.7759/cureus.44506] [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] [Accepted: 08/31/2023] [Indexed: 10/05/2023] Open
Abstract
Prior to the development of laparoscopic procedures, open appendectomy was the standard of care for the majority of appendicitis cases. Recently, studies have debated using antibiotics as a first-line treatment in uncomplicated appendicitis cases. The definition of uncomplicated appendicitis is not always clear-cut; however, with the large-scale accessibility of radiologic techniques, it is becoming increasingly easier to classify patient groups. As suggested by clinical and radiological patient data, this has raised the speculation of considering antibiotic therapy as the sole treatment modality in uncomplicated appendicitis cases. We aim to compare the options of surgery and antibiotics only in terms of efficacy, complications, and financial cost. A range of databases and search strategies were adopted, and various databases were used, including PubMed, ScienceDirect, Google Scholar, and JAMA. Collectively, 30 studies were reviewed, but only 18 were included. Efficacy rates were higher in the appendectomy group. Nevertheless, the antibiotics-only group maintained an efficacy rate greater than 70% at one-year follow-up. Risk factors that decreased the efficacy in medical management included the presence of appendicolith, neoplasm, appendiceal dilatation, peri-appendiceal fluid collection, higher mean temperature, CRP, and bilirubin. Complications were more frequent and significant in the surgery group. These included complications related to anaesthesia, surgical site infections, damage to nearby structures, and pulmonary embolism. Despite several years of follow-up and disease recurrences, higher financial costs were observed in surgically treated patients compared to the antibiotics-only group. Given the high success rates post-appendectomy for acute appendicitis over the decades, the efficacy of conservatively treated acute appendicitis raises a strong argument when choosing one of the two options. The efficacy remained consistently higher across the literature in the surgery group than in the antibiotics-only group. However, it is still arguable that antibiotics may be a preferable option given an efficacy rate of more than 70% at one year and overall higher complications associated with surgery. The argument of missing a neoplasm by avoiding surgery is valid. However, most are carcinoid neuroendocrine neoplasms with a low probability of metastasis (<5%) and are usually considered benign. Given the current practice focused on conservative and minimally invasive treatments and recently the COVID-19 pandemic, with its restrictions and lessons learnt, antibiotics may be the future standard for treating uncomplicated acute appendicitis. Lastly, we noticed higher efficacy rates in articles published recently than those published at least five to ten years earlier. Antibiotics-only therapy for uncomplicated appendicitis is cost-effective with fewer complications than surgery. However, appendectomies have higher efficacy. Thus, surgical treatment prevails as the standard of care. Future literature should yield larger sample sizes and explore the numbers of emergency appendectomies mandated following antibiotics-only therapy.
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Affiliation(s)
- Janan Alajaimi
- School of Medicine, Royal College of Surgeons in Ireland, Busaiteen, BHR
| | - Manar Almansoor
- School of Medicine, Royal College of Surgeons in Ireland, Busaiteen, BHR
| | - Amina Almutawa
- School of Medicine, Royal College of Surgeons in Ireland, Busaiteen, BHR
| | | | - Husham Bakry
- General Surgery, King Hamad University Hospital, Busaiteen, BHR
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Gebreselassie H, Zeleke H, Ashebir D. Diagnosis of Acute Appendicitis: A Cross-sectional Study on Alvarado's Score from a Low Income Country. Open Access Emerg Med 2023; 15:253-258. [PMID: 37346382 PMCID: PMC10281270 DOI: 10.2147/oaem.s410119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/09/2023] [Indexed: 06/23/2023] Open
Abstract
Background Alvarado score is the most widely used scoring system for diagnosing acute appendicitis, globally. There have been concerns regarding the diagnostic accuracy of this score as it was shown to have lower sensitivity in certain populations like Blacks and Asians. Despite its wide clinical use in the Ethiopian set up, the diagnostic accuracy of this score remained largely unexamined in this population. Methodology A prospective cross-sectional study was conducted and all adult patients who presented with right lower quadrant abdominal pain and evaluated with a clinical impression of acute appendicitis were enrolled in the study. Data was collected by trained surgical residents over a period of six months (August 2019- January 2020) and analysed using SPSS version 25. Results A total of 235 patients were enrolled in this study among whom two thirds were males. The majority of the study participants (61.7%) had an Alvarado score of ≥7 while almost a quarter of them had a score of <4. The mean Alvarado score in this study was 7 ± 1.8 whereas the median and the mode were 7 and 9 respectively. The overall sensitivity, specificity, positive predictive value and negative predictive value of Alvarado score were 99.1%, 55.6%, 98.2% and 62.5% respectively. The sensitivity and specificity of this score was superior in males compared to females (99.3% vs 97.6% and 80% vs 25%). A score of ≥5 was found to have a sensitivity of 98.4%. Conclusion Alvarado score was found to have good sensitivity and positive predictive value in this study. A score of ≥5 can be used to "rule in" the diagnosis of acute appendicitis. Hence, the use of Alvarado score's in the Ethiopian setup is to be encouraged.
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Affiliation(s)
- Hana Gebreselassie
- Department of Surgery, St. Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia
| | - Henok Zeleke
- Department of Surgery, Addis Ababa University, College of Health Sciences, Addis Ababa, Ethiopia
| | - Daniel Ashebir
- Department of Surgery, Addis Ababa University, College of Health Sciences, Addis Ababa, Ethiopia
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Wirth U, Schardey J, Werner J. [Acute appendicitis: Diagnosis and management]. MMW Fortschr Med 2023; 165:48-54. [PMID: 37322212 DOI: 10.1007/s15006-023-2656-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Ulrich Wirth
- Klinik für Allgemeine-, Viszeral-, und Transplantationschirurgie, Klinikum der Universität München, Marchioninistrasse 15, 81377, München, Germany
| | - Josefine Schardey
- Klinik für Allgemeine-, Viszeral-, und Transplantationschirurgie, Klinikum Großhadern der LMU München, Marchioninistrasse 15, 81377, München, Germany
| | - Jens Werner
- Allgemein-, Viszeral- u. Transplantationsmedizin, Klinikum der Universität München, Marchioninistr. 15, 81377, München, Germany
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Zachos K, Kolonitsiou F, Panagidis A, Gkentzi D, Fouzas S, Alexopoulos V, Kostopoulou E, Roupakias S, Vervenioti A, Dassios T, Georgiou G, Sinopidis X. Association of the Bacteria of the Vermiform Appendix and the Peritoneal Cavity with Complicated Acute Appendicitis in Children. Diagnostics (Basel) 2023; 13:diagnostics13111839. [PMID: 37296691 DOI: 10.3390/diagnostics13111839] [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: 04/24/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Primary infection has been questioned as the pathogenetic cause of acute appendicitis. We attempted to identify the bacteria involved and to investigate if their species, types, or combinations affected the severity of acute appendicitis in children. METHODS Samples from both the appendiceal lumen and the peritoneal cavity of 72 children who underwent appendectomy were collected to perform bacterial culture analysis. The outcomes were studied to identify if and how they were associated with the severity of the disease. Regression analysis was performed to identify any risk factors associated with complicated appendicitis. RESULTS Escherichia coli, Pseudomonas aeruginosa, and Streptococcus species were the most common pathogens found in the study population. The same microorganisms, either combined or separate, were the most common in the appendiceal lumen and the peritoneal cavity of patients with complicated appendicitis. Gram-negative bacteria and polymicrobial cultures in the peritoneal fluid and in the appendiceal lumen were associated with complicated appendicitis. Polymicrobial cultures in the peritoneal cavity presented a four times higher risk of complicated appendicitis. CONCLUSIONS Polymicrobial presentation and Gram-negative bacteria are associated with complicated appendicitis. Antibiotic regimens should target the combinations of the most frequently identified pathogens, speculating the value of early antipseudomonal intervention.
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Affiliation(s)
| | - Fevronia Kolonitsiou
- Department of Microbiology, University of Patras School of Medicine, 26504 Patras, Greece
| | - Antonios Panagidis
- Department of Pediatric Surgery, Children's Hospital, 26331 Patras, Greece
| | - Despoina Gkentzi
- Department of Pediatrics, University of Patras School of Medicine, 26504 Patras, Greece
| | - Sotirios Fouzas
- Department of Pediatrics, University of Patras School of Medicine, 26504 Patras, Greece
| | | | - Eirini Kostopoulou
- Department of Pediatrics, University of Patras School of Medicine, 26504 Patras, Greece
| | - Stylianos Roupakias
- Department of Pediatric Surgery, University of Patras School of Medicine, 26504 Patras, Greece
| | - Aggeliki Vervenioti
- Department of Pediatrics, University of Patras School of Medicine, 26504 Patras, Greece
| | - Theodore Dassios
- Department of Pediatrics, University of Patras School of Medicine, 26504 Patras, Greece
| | - George Georgiou
- Department of Pediatric Surgery, Children's Hospital, 26331 Patras, Greece
| | - Xenophon Sinopidis
- Department of Pediatric Surgery, University of Patras School of Medicine, 26504 Patras, Greece
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Shao C, Song X, Wang L, Zhang H, Liu Y, Wang C, Chen S, Ren B, Wen S, Xiao J, Tang L. Microbiome Structure and Mucosal Morphology of Jejunum Appendix and Colon of Rats in Health and Dysbiosis. Curr Microbiol 2023; 80:127. [PMID: 36877409 PMCID: PMC9988748 DOI: 10.1007/s00284-023-03224-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 02/11/2023] [Indexed: 03/07/2023]
Abstract
Gut microbiota contributes to human health. Plenty of studies demonstrate that antibiotics can disrupt gut ecosystem leading to dysbiosis. Little is known about the microbial variation of appendix and its up/downstream intestine after antibiotic treatment. This study aimed to investigate the microbiome and mucosal morphology of jejunum, appendix, and colon of rats in health and dysbiosis. A rodent model of antibiotic-induced dysbiosis was employed. Microscopy was used to observe mucosal morphological changes. 16S rRNA sequencing was performed for identifying bacterial taxa and microbiome structure. The appendices of dysbiosis were found enlarged and inflated with loose contents. Microscopy revealed the impairment of intestinal epithelial cells. High-throughput sequencing showed the Operational Taxonomic Units changed from 361 ± 33, 634 ± 18, 639 ± 19 in the normal jejunum, appendix, colon to 748 ± 98, 230 ± 11, 253 ± 16 in the disordered segments, respectively. In dysbiosis, Bacteroidetes translocated inversely from the colon and appendix (0.26%, 0.23%) to the jejunum (13.87% ± 0.11%); the relative abundance of all intestinal Enterococcaceae increased, while Lactobacillaceae decreased. Several bacterial clusters were found correlated to the normal appendix, whereas nonspecific clusters correlated to the disordered appendix. In conclusion, species richness and evenness reduced in the disordered appendix and colon; similar microbiome patterns were shared between the appendix and colon regardless of dysbiosis; site-specific bacteria were missing in the disordered appendix. Appendix is likely a transit region involving in upper and lower intestinal microflora modulation. The limitation of this study is all the data were derived from rats. We must be cautious about translating the microbiome results from rats to humans.
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Affiliation(s)
- Chenyi Shao
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Xiaobo Song
- Department of Medical Biology, Faculty of Health Sciences, The Arctic University of Norway, Tromsø, Norway
| | - Lili Wang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Hongying Zhang
- Department of Pathology & Forensic Medicine, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Yinhui Liu
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Chunhao Wang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Shenmin Chen
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Baowei Ren
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Shu Wen
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Jing Xiao
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, China.
| | - Li Tang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China.
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Muacevic A, Adler JR, Awais M, Rafi M, Javeed S, Ahmed I, Farooq S, Ali AA. Accuracy of RIPASA and Lintula Scores in Diagnosing Acute Appendicitis Using Surgical Findings as the Gold Standard. Cureus 2022; 14:e31297. [PMID: 36514623 PMCID: PMC9733822 DOI: 10.7759/cureus.31297] [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] [Accepted: 11/09/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Appendicitis is an inflammation of the vermiform appendix's inner lining that spreads to its other sections. Appendectomy is still the standard way to cure appendicitis. The diagnosis of acute appendicitis is still clinical and supported by a raised neutrophilic count and imaging studies; moreover, scoring systems, such as the Raja Isteri Pengiran Anak Saleha Appendicitis (RIPASA) and Lintula scores, help the clinicians in the diagnosis. The main objective of this study was to establish the diagnostic accuracy of RIPASA and Lintula scores for acute appendicitis using surgical findings as the gold standard, in an Asian population. METHODS This was a retrospective cohort study conducted at the Department of Surgery, Mayo Hospital, Lahore, and Department of Surgery, Services Hospital, Lahore. This study was conducted from January 2020 to January 2022, for the duration of two years. A total of 120 patients were enrolled after meeting the inclusion criteria, and demographic data were obtained. Lintula and RIPASA scores were recorded, and patients were classified as positive or negative based on histopathological findings. IBM SPSS Statistics, version 26 (IBM Corp., Armonk, NY) was used to evaluate all of the gathered data. RESULTS The average age of the patients in this study was 37.39±14.36 years, with a male-to-female ratio of 1.14:1. Taking surgical finding as the gold standard, RIPASA scoring had a diagnosis accuracy of 91.67% while the Lintula score had a diagnostic accuracy of 79.17%. CONCLUSION While both the RIPASA and the Lintula scoring systems were accurate, the RIPASA scoring system outperformed the Lintula scoring system when surgical findings were used as the gold standard.
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12
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Hoxha I, Duraj B, Xharra S, Avdaj A, Beqiri V, Grezda K, Selmani E, Avdiu B, Cegllar J, Marušič D, Osmani A. Clinical Decision-Making for Appendectomy in Kosovo: A Conjoint Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14027. [PMID: 36360907 PMCID: PMC9654723 DOI: 10.3390/ijerph192114027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/23/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Objective: The objective was to investigate the association of clinical attributes with decision making for performing appendectomy and making preoperative preparations for appendectomy. Method: A conjoint analysis with 17 clinical scenarios was executed with surgeons employed at public hospitals in Kosovo. Setting: The study was conducted at two public hospitals in Kosovo that have benefited from quality-improvement interventions. Participants: The participants included 22 surgeons. Outcome measures: The primary outcome was the overall effect of clinical attributes on the decision to perform appendectomy and make the preoperative preparations for appendectomy. Results: In the regression analyses, several attributes demonstrated statistically significant effects on the clinical decision to perform appendectomy and on the practice of preoperative preparation. Conclusions: We found that several factors influenced the decision to perform appendectomy and the practices for preoperative preparation. Nevertheless, the small sample size limited our efforts to interpret the results. These findings could assist Kosovo in the design and implementation of future similar studies and in fostering quality improvement measures that address clinical decision making and the lack of process standardization in the delivery of surgical care.
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Affiliation(s)
- Ilir Hoxha
- The Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, NH 03766, USA
- Evidence Synthesis Group, 10000 Prishtina, Kosovo
- Research Unit, Heimerer College, 10000 Prishtina, Kosovo
- Lux Development, 10000 Prishtina, Kosovo
| | - Bajram Duraj
- General Hospital of Prizren, 20000 Prizren, Kosovo
| | - Shefki Xharra
- General Hospital of Prizren, 20000 Prizren, Kosovo
- General Hospital of Gjilan, 60000 Gjilan, Kosovo
| | - Afrim Avdaj
- General Hospital of Prizren, 20000 Prizren, Kosovo
| | - Valon Beqiri
- The Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia
| | - Krenare Grezda
- Evidence Synthesis Group, 10000 Prishtina, Kosovo
- Research Unit, Heimerer College, 10000 Prishtina, Kosovo
| | - Erza Selmani
- Evidence Synthesis Group, 10000 Prishtina, Kosovo
- Research Unit, Heimerer College, 10000 Prishtina, Kosovo
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13
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de Almeida Leite RM, Seo DJ, Gomez-Eslava B, Hossain S, Lesegretain A, de Souza AV, Bay CP, Zilberstein B, Marchi E, Machado RB, Barchi LC, Ricciardi R. Nonoperative vs Operative Management of Uncomplicated Acute Appendicitis: A Systematic Review and Meta-Analysis. JAMA Surg 2022; 157:828-834. [PMID: 35895073 PMCID: PMC9330355 DOI: 10.1001/jamasurg.2022.2937] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Importance Appendectomy remains the standard of care for uncomplicated acute appendicitis despite several randomized clinical trials pointing to the safety and efficacy of nonoperative management of this disease. A meta-analysis of randomized clinical trials may contribute to the body of evidence and help surgeons select which patients may benefit from surgical and nonsurgical treatment. Objective To assess the efficacy and safety of nonoperative management vs appendectomy for acute uncomplicated appendicitis. Data Sources A systematic review was conducted using indexed sources (Embase and PubMed) to search for published randomized clinical trials in English comparing nonoperative management with appendectomy in adult patients presenting with uncomplicated acute appendicitis. To increase sensitivity, no limits were set for outcomes reported, sex, or year of publication. All nonrandomized or quasi-randomized trials were excluded, and validated primers were used. Study Selection Among 1504 studies imported for screening, 805 were duplicates, and 595 were excluded for irrelevancy. A further 96 were excluded after full-text review, mainly owing to wrong study design or inclusion of pediatric populations. Eight studies met the inclusion criteria and were selected for the meta-analysis. Data Extraction and Synthesis Meta-extraction was conducted with independent extraction by multiple reviewers using the Covidence platform for systematic reviews and in accordance with PRISMA guidelines. Data were pooled by a random-effects model. Main Outcomes and Measures Treatment success and major adverse effects at 30 days' follow-up. Results The main outcome (treatment success proportion at 30 days of follow-up) was not significantly different in the operative and nonoperative management cohorts (risk ratio [RR], 0.85; 95% CI, 0.66-1.11). Likewise, the percentage of major adverse effects was similar in both cohorts (RR, 0.72; 95% CI, 0.29-1.79). However, in the nonoperative management group, length of stay was significantly longer (RR, 1.48; 95% CI, 1.26-1.70), and a median cumulative incidence of 18% of recurrent appendicitis was observed. Conclusions and Relevance These results point to the general safety and efficacy of nonoperative management of uncomplicated acute appendicitis. However, this strategy may be associated with an increase in duration of hospital stay and a higher rate of recurrent appendicitis. This meta-analysis may help inform decision-making in nonoperative management of uncomplicated acute appendicitis.
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Affiliation(s)
- Rodrigo Moises de Almeida Leite
- Colon and Rectal Surgery Department, Massachusetts General Hospital, Boston.,Gastrointestinal Surgery Department, Gastromed Institute, Sao Paulo, Brazil
| | - Dong Joo Seo
- Colon and Rectal Surgery Department, Massachusetts General Hospital, Boston
| | | | - Sigma Hossain
- Colon and Rectal Surgery Department, Massachusetts General Hospital, Boston
| | - Arnaud Lesegretain
- Colon and Rectal Surgery Department, Massachusetts General Hospital, Boston
| | | | - Camden Phillip Bay
- Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Bruno Zilberstein
- Gastrointestinal Surgery Department, Gastromed Institute, Sao Paulo, Brazil.,Digestive Surgery Division, Department of Gastroenterology, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Evaldo Marchi
- Department of General Surgery, Faculdade de Medicina de Jundiaí, Jundiaí, Brazil
| | | | - Leandro Cardoso Barchi
- Gastrointestinal Surgery Department, Gastromed Institute, Sao Paulo, Brazil.,Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Rocco Ricciardi
- Section of Colon & Rectal Surgery, Massachusetts General Hospital, Harvard Medical School, Boston
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14
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Hung SK, Kou HW, Wu KH, Chen SY, Li CH, Lee CW, Hung YY, Gao SY, Wu PH, Hsieh CH, Chaou CH. Does medical disparity exist while treating severe mental illness patients with acute appendicitis in emergency departments? A real-world database study. BMC Psychiatry 2022; 22:488. [PMID: 35864481 PMCID: PMC9306199 DOI: 10.1186/s12888-022-04141-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 07/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Patients with severe mental illness (SMI) have a shorter life expectancy and have been considered by the World Health Organization (WHO) as a vulnerable group. As the causes for this mortality gap are complex, clarification regarding the contributing factors is crucial to improving the health care of SMI patients. Acute appendicitis is one of the most common indications for emergency surgery worldwide. A higher perforation rate has been found among psychiatric patients. This study aims to evaluate the differences in appendiceal perforation rate, emergency department (ED) management, in-hospital outcomes, and in-hospital expenditure among acute appendicitis patients with or without SMI via the use of a multi-centre database. METHODS Relying on Chang Gung Research Database (CGRD) for data, we selectively used its data from January 1st, 2007 to December 31st, 2017. The diagnoses of acute appendicitis and SMI were confirmed by combining ICD codes with relevant medical records. A non-SMI patient group was matched at the ratio of 1:3 by using the Greedy algorithm. The outcomes were appendiceal perforation rate, ED treatment, in-hospital outcome, and in-hospital expenditure. RESULTS A total of 25,766 patients from seven hospitals over a span of 11 years were recruited; among them, 11,513 were excluded by criteria, with 14,253 patients left for analysis. SMI group was older (50.5 vs. 44.4 years, p < 0.01) and had a higher percentage of females (56.5 vs. 44.4%, p = 0.01) and Charlson Comorbidity Index. An analysis of the matched group has revealed that the SMI group has a higher unscheduled 72-hour revisit to ED (17.9 vs. 10.4%, p = 0.01). There was no significant difference in appendiceal perforation rate, ED treatment, in-hospital outcome, and in-hospital expenditure. CONCLUSIONS Our study demonstrated no obvious differences in appendiceal perforation rate, ED management, in-hospital outcomes, and in-hospital expenditure among SMI and non-SMI patients with acute appendicitis. A higher unscheduled 72-hour ED revisit rate prior to the diagnosis of acute appendicitis in the SMI group was found. ED health providers need to be cautious when it comes to SMI patients with vague symptoms or unspecified abdominal complaints.
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Affiliation(s)
- Shang-Kai Hung
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan
| | - Hao-Wei Kou
- grid.454211.70000 0004 1756 999XDepartment of Surgery, Division of General Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan
| | - Kai-Hsiang Wu
- grid.454212.40000 0004 1756 1410Department of Emergency Medicine, Chiayi Chang Gung Memorial Hospital, Chiayi County, 613 Taiwan ,grid.418428.3Department of Nursing, Chang Gung University of Science and Technology, Chiayi Campus, Chiayi County, 613 Taiwan
| | - Shou-Yen Chen
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan ,grid.145695.a0000 0004 1798 0922Graduate Institute of Clinical Medical Sciences, Division of Medical Education, College of Medicine, Chang Gung University, Taoyuan City, 333 Taiwan
| | - Chih-Huang Li
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan ,grid.145695.a0000 0004 1798 0922Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan City, 333 Taiwan
| | - Chao-Wei Lee
- grid.454211.70000 0004 1756 999XDepartment of Surgery, Division of General Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan ,grid.145695.a0000 0004 1798 0922Graduate Institute of Clinical Medical Sciences, Division of Medical Education, College of Medicine, Chang Gung University, Taoyuan City, 333 Taiwan ,grid.145695.a0000 0004 1798 0922College of Medicine, Chang Gung University, Guishan, Taoyuan City, 333 Taiwan
| | - Yu-Yung Hung
- grid.415011.00000 0004 0572 9992Department of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung City, 813 Taiwan
| | - Shi-Ying Gao
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan
| | - Po-Han Wu
- grid.454212.40000 0004 1756 1410Department of Emergency Medicine, Chiayi Chang Gung Memorial Hospital, Chiayi County, 613 Taiwan
| | - Chiao-Hsuan Hsieh
- grid.454211.70000 0004 1756 999XDepartment of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333 Taiwan
| | - Chung-Hsien Chaou
- Department of Emergency Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan. .,College of Medicine, Chang Gung University, Guishan, Taoyuan City, 333, Taiwan. .,Chang-Gung Medical Education Research Centre, Chang-Gung Memorial Hospital, No. 5, Fusing St., Guei-shan Township, Taoyuan City, 333, Taiwan.
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15
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Bolmers MDM, de Jonge J, Bom WJ, van Rossem CC, van Geloven AAW, Bemelman WA. In-hospital Delay of Appendectomy in Acute, Complicated Appendicitis. J Gastrointest Surg 2022; 26:1063-1069. [PMID: 35048258 DOI: 10.1007/s11605-021-05220-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 10/14/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Present theory is that uncomplicated and complicated appendicitis are different entities. Recent studies suggest it is safe to delay surgery in patients with uncomplicated appendicitis. We hypothesize that patients with complicated appendicitis are at higher risk for postoperative complications when surgery is delayed. METHODS Data was used from the multicenter, prospective SNAPSHOT appendicitis study of 1975 patients undergoing surgery for suspected appendicitis. Adult patients (≥ 18 years) who underwent appendectomy for appendicitis were included in this study. The primary outcome was the difference in postoperative complications between patients with complicated appendicitis who were operated within and after 8 h after hospital presentation. Secondary outcomes were the incidence of both uncomplicated and complicated appendicitis in relationship to delay of appendectomy. Follow-up was 30 days. A multivariable analysis was performed. RESULTS Of 1341 adult patients with appendicitis, 34.3% had complicated appendicitis. In patients with complicated appendicitis, 22.8% developed a postoperative complication compared to 8.2% for uncomplicated appendicitis (P < 0.001). Delay in surgery (> 8 h) increased the complication rate in patients with complicated appendicitis (28.1%) compared to surgery within 8 h (18.3%; P = 0.01). Multivariate analysis showed a delay in surgery as an independent predictor for a postoperative complication in patients with complicated appendicitis (OR 1.71; 95%CI 1.01-2.68, P = 0.02). CONCLUSION In-hospital delay of surgery (> 8 h) in patients with complicated appendicitis is associated with a higher risk of a postoperative complication. It is important that we recognize and treat these patients early.
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Affiliation(s)
- M D M Bolmers
- Department of Surgery, Dijklander Hospital, Hoorn, The Netherlands. .,Department of Surgery, Tergooi Hospital, P.O. Box 10016, 1201 DA, Hilversum, The Netherlands.
| | - J de Jonge
- Department of Surgery, Tergooi Hospital, P.O. Box 10016, 1201 DA, Hilversum, The Netherlands
| | - W J Bom
- Department of Surgery, Tergooi Hospital, P.O. Box 10016, 1201 DA, Hilversum, The Netherlands
| | - C C van Rossem
- Department of Surgery, Maasstad Ziekenhuis, Rotterdam, The Netherlands
| | - A A W van Geloven
- Department of Surgery, Tergooi Hospital, P.O. Box 10016, 1201 DA, Hilversum, The Netherlands
| | - W A Bemelman
- Department of Surgery, Academic Medical Center, Amsterdam, The Netherlands
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Hazan D, Goldstein AL, Keidar S, Dayan K, Shimonov M. Keep it Simple, Laboratory Parameters to Predict Complicated Acute Appendicitis in Children Younger Than Five Years. Am Surg 2022:31348221078963. [PMID: 35317666 DOI: 10.1177/00031348221078963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The clinical presentation of acute appendicitis in the youngest age lacks specific signs and symptoms, and it is difficult to obtain an accurate clinical diagnosis. Once the diagnosis is made, it is necessary to determine if the appendicitis is simple and able to be managed non-surgically, or complicated, therefore requiring surgery. Together with the clinical picture and imaging, routine laboratory values play a vital role in this decision. The aim of this study is to evaluate routine blood in their ability to differentiate between complicated and uncomplicated acute appendicitis. METHOD A retrospective analysis was conducted from a single pediatric surgery department of all children 5 years of age or younger who underwent surgery for acute appendicitis between the years 2010-2020. RESULTS 728 children were diagnosed with acute appendicitis, and 42 children were under the age of 5 years. There was a significant difference in the C-reactive protein, white blood cell count, neutrophil/lymphocyte ratio, and platelet/lymphocyte ratio in the complicated group versus the uncomplicated group. The value of these together for prediction complicated appendicitis were 84.8% sensitivity, 80.9% specificity, 82.8% positive predictive value, and 72.8% negative predictive value. These values were all higher than both the Alvarado score and the PAS (P < .05). CONCLUSIONS C-reactive protein, neutrophil/lymphocyte ratio, and platelet/lymphocyte ratio are simple laboratory parameters that can help identify complicated versus uncomplicated appendicitis in children 5 years old or younger. These universal parameters may help guide the treatment and decision to operate on a difficult to diagnose population.
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Affiliation(s)
- Danny Hazan
- Department of General Surgery, 58883The Edith Wolfson Medical Center, Holon, Israel
| | - Adam Lee Goldstein
- Department of General Surgery, 58883The Edith Wolfson Medical Center, Holon, Israel
| | - Sergey Keidar
- Department of General Surgery, 58883The Edith Wolfson Medical Center, Holon, Israel
| | - Katia Dayan
- Department of General Surgery, 58883The Edith Wolfson Medical Center, Holon, Israel
| | - Mordechai Shimonov
- Department of General Surgery, 58883The Edith Wolfson Medical Center, Holon, Israel
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17
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Shi W, Wu Y, Zhong L, Huang Z, Zhong M, Wang J, Huang W, Yi X, Lu X, Yuan J, Huang W, Zhou X. Diagnostic Accuracy of Serum Amyloid A in Acute Appendicitis: A Systematic Review and Meta-Analysis. Surg Infect (Larchmt) 2022; 23:380-387. [PMID: 35319305 DOI: 10.1089/sur.2021.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: Serum amyloid A has been widely reported as a useful biochemical marker in the diagnoses of acute appendicitis. The aim of this study was to appraise the diagnostic accuracy of serum amyloid A in the diagnosis of acute appendicitis. Methods: A systematic search of several databases was conducted. The search time was from the beginning of the databases creation to March 1, 2021, and the languages were restricted to English and Chinese. Clinical studies using serum amyloid A for the diagnosis of acute appendicitis were included. The overall sensitivity and specificity were calculated by using a bivariable mixed effects model. Heterogeneity was tested using I2 statistics. This study has been registered on the International Prospective Register of Systematic Reviews (PROSPERO; no. CRD42021241343). Results: Five studies comprising 668 participants were eligible for inclusion. The overall sensitivity and specificity of serum amyloid A in diagnosing acute appendicitis were 0.87 (95% confidence interval [CI], 0.79-0.92) and 0.74 (95% CI, 0.59-0.85), respectively. The positive and negative likelihood were 3.3 (95% CI, 2.1-5.4) and 0.18 (95% CI, 0.11-0.28), respectively. The area under the summary receiver operating characteristic curves was 0.89 (95% CI, 0.86-0.91). The heterogeneity was significant (I2 = 82%; 95% CI [63%-100%]). Conclusions: Serum amyloid A has good diagnostic accuracy for acute appendicitis. It is expected that serum amyloid A could be helpful in the early clinical diagnosis of acute appendicitis.
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Affiliation(s)
- Wenhua Shi
- The Second Clinical College of Guangzhou University of Chinese Medicine, Baiyun District, Guangzhou, China
| | - Yizhe Wu
- The Second Clinical College of Guangzhou University of Chinese Medicine, Baiyun District, Guangzhou, China
| | - Linyu Zhong
- The Second Clinical College of Guangzhou University of Chinese Medicine, Baiyun District, Guangzhou, China
| | - Zhibin Huang
- The Second Clinical College of Guangzhou University of Chinese Medicine, Baiyun District, Guangzhou, China
| | - Minlin Zhong
- The Second Clinical College of Guangzhou University of Chinese Medicine, Baiyun District, Guangzhou, China
| | - Jin Wang
- Emergency Department, Guangdong Provincial Hospital of Chinese Medicine, Yuexiu District, Guangzhou, China
| | - Wujiao Huang
- Laboratory Department, Guangdong Provincial Hospital of Chinese Medicine, Yuexiu District, Guangzhou, China
| | - Xiaojiang Yi
- Department of Colorectal Surgery, Guangdong Provincial Hospital of Chinese Medicine, Yuexiu District, Guangzhou, China
| | - Xinquan Lu
- Department of Colorectal Surgery, Guangdong Provincial Hospital of Chinese Medicine, Yuexiu District, Guangzhou, China
| | - Jingjing Yuan
- Anesthesiology Department, Guangdong Provincial Hospital of Chinese Medicine, Yuexiu District, Guangzhou, China
| | - Wei Huang
- Emergency Department, Guangdong Provincial Hospital of Chinese Medicine, Yuexiu District, Guangzhou, China
| | - Xianshi Zhou
- Emergency Department, Guangdong Provincial Hospital of Chinese Medicine, Yuexiu District, Guangzhou, China.,Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Yuexiu District, Guangzhou, China.,Guangzhou Key Laboratory of Traditional Chinese Medicine for Prevention and Treatment of Emerging Infectious Diseases, Yuexiu District, Guangzhou, China
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18
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Eickhoff RM, Bulla A, Eickhoff SB, Heise D, Helmedag M, Kroh A, Schmitz SM, Klink CD, Neumann UP, Lambertz A. Machine learning prediction model for postoperative outcome after perforated appendicitis. Langenbecks Arch Surg 2022; 407:789-795. [PMID: 35169871 PMCID: PMC8933368 DOI: 10.1007/s00423-022-02456-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 01/28/2022] [Indexed: 02/07/2023]
Abstract
Purpose Appendectomy for acute appendicitis is one of the most common operative procedures worldwide in both children and adults. In particular, complicated (perforated) cases show high variability in individual outcomes. Here, we developed and validated a machine learning prediction model for postoperative outcome of perforated appendicitis. Methods Retrospective analyses of patients with clinically and histologically verified perforated appendicitis over 10 years were performed. Demographic and surgical baseline characteristics were used as competing predictors of single-patient outcomes along multiple dimensions via a random forest classifier with stratified subsampling. To assess whether complications could be predicted in new, individual cases, the ensuing models were evaluated using a replicated 10-fold cross-validation. Results A total of 163 patients were included in the study. Sixty-four patients underwent laparoscopic surgery, whereas ninety-nine patients got a primary open procedure. Interval from admission to appendectomy was 9 ± 12 h and duration of the surgery was 74 ± 38 min. Forty-three patients needed intensive care treatment. Overall mortality was 0.6 % and morbidity rate was 15%. Severe complications as assessed by Clavien-Dindo > 3 were predictable in new cases with an accuracy of 68%. Need for ICU stay (> 24 h) could be predicted with an accuracy of 88%, whereas prolonged hospitalization (greater than 7–15 days) was predicted by the model with an accuracy of 76%. Conclusion We demonstrate that complications following surgery, and in particular, health care system-related outcomes like intensive care treatment and extended hospitalization, may be well predicted at the individual level from demographic and surgical baseline characteristics through machine learning approaches. Supplementary Information The online version contains supplementary material available at 10.1007/s00423-022-02456-1.
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Affiliation(s)
- Roman M Eickhoff
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany.
| | - Alwin Bulla
- Department of Surgery, Hospital Linnich, Linnich, Germany
| | - Simon B Eickhoff
- Institute for Systems Neuroscience, Medical School, Heinrich-Heine University, Düsseldorf, Germany.,Institute of Neuroscience and Medicine (INM-7) Research Center, Jülich, Germany
| | - Daniel Heise
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Marius Helmedag
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Andreas Kroh
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Sophia M Schmitz
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Christian D Klink
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany.,Department of Surgery, Diakonissen Hospital Speyer, Speyer, Germany
| | - Ulf P Neumann
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Andreas Lambertz
- Department of General, Visceral and Transplantation Surgery, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
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Can The ‘Speed Bump Sign’ Be a Diagnostic Tool for Acute Appendicitis? Evidence-Based Appraisal by Meta-Analysis and GRADE. Life (Basel) 2022; 12:life12020138. [PMID: 35207428 PMCID: PMC8875208 DOI: 10.3390/life12020138] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 12/30/2021] [Accepted: 01/14/2022] [Indexed: 12/29/2022] Open
Abstract
Objectives: The ‘speed bump sign’ is a clinical symptom characterised by aggravated abdominal pain while driving over speed bumps. This study aimed to perform a diagnostic meta-analysis, rate the certainty of evidence (CoE) and analyse the applicability of the speed bump sign in the diagnosis of acute appendicitis. Materials and Methods: Four databanks and websites were systemically searched, and the Quality Assessment of Diagnostic Accuracy Studies 2 was used to evaluate the risk of bias. Meta-analysis was assessed by MIDAS commands in Stata 15. Grading of Recommendations, Assessment, Development and Evaluation methodology was applied to examine the CoE. Results: Four studies with 343 participants were included. The pooled sensitivity and specificity were 0.94 (95% CI (confidence interval) = 0.83–0.98; I2 = 79%) and 0.49 (95% CI = 0.33–0.66; I2 = 67%), respectively. The area under the summary receiver operating characteristic curve was 0.78 (95% CI = 0.74–0.81). The diagnostic odds ratio was 14.1 (95% CI = 3.6–55.7). The pooled positive and negative likelihood ratios (LR (+) and LR (−)) were 1.84 (95% CI = 1.30–2.61) and 0.13 (95% CI = 0.04–0.41), respectively. According to Fagan’s nomogram plot, when the pretest probabilities were 25%, 50% and 75%, the related posttest probabilities increased to 38%, 65% and 85% calculated through LR (+), respectively, and the posttest probabilities were 4%, 12% and 28% calculated through LR (−), respectively. The overall CoEs were low and very low in sensitivity and specificity, respectively. Conclusion: Current evidence shows that the speed bump sign is a useful ‘rule-out’ test for diagnosing acute appendicitis. With good accessibility, the speed bump sign may be added as a routine part of taking the history of patients with abdominal pain.
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20
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Haider N, Mehmood Z, Kumar V, Imran M, Ahmed M. Fecal Loading at Caecum as a New Radiological Sign for Diagnosing Acute Appendicitis. Cureus 2022; 14:e20903. [PMID: 35145807 PMCID: PMC8809636 DOI: 10.7759/cureus.20903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2021] [Indexed: 12/07/2022] Open
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21
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Hospitalization Trends for Acute Appendicitis in Spain, 1998 to 2017. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312718. [PMID: 34886447 PMCID: PMC8656947 DOI: 10.3390/ijerph182312718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/25/2021] [Accepted: 11/28/2021] [Indexed: 12/29/2022]
Abstract
The incidence of acute appendicitis decreased in Western countries from 1930 to at least the early 1990s, when epidemiological data started becoming scarcer. This study aimed to assess the trend in annual hospitalizations for acute appendicitis in all people Spain for a 20-year period between 1998 and 2017. This observational study analyzing direct age-standardized hospital admission rates by gender and age group (0–14 years, 15–34 years, 35–44 years, 45–64 years, and ≥65 years). Joinpoint regression models were fitted to evaluate changes in trends. There were 789,533 emergency hospital admissions for acute appendicitis between 1998 and 2017: 58.9% in boys and men and 41.1% in girls and women. Overall, there was a significant increase in admissions for this cause from 1998 to 2009, with an annual percent change (APC) of 0.6%. Following the peak in 2009, admission rates decreased by around 1.0% annually until 2017. The length of hospital stay gradually decreased from 4.5 days in 1998 to 3.4 days in 2017. The trends in hospital admissions for acute appendicitis in Spain changed over the study period, decreasing from 2009, especially in people younger than 35 years.
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22
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Miranda E, Meara JG, Pendleton A, Peters AW, Santhirapala V, Ashraf N, Alonso N, Hakizimana S, Bekele A, Park KB, Farmer P. Harvard Medical School Department of Global Health and Social Medicine COVID-19 seminar series: COVID and surgical, anesthetic and obstetric care. BMC Proc 2021; 15:20. [PMID: 34551790 PMCID: PMC8457896 DOI: 10.1186/s12919-021-00218-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2021] [Indexed: 11/10/2022] Open
Abstract
On May 21, 2020, the Harvard Program in Global Surgery and Social Change (PGSSC) hosted a webinar as part of the Harvard Medical School Department of Global Health and Social Medicine’s COVID-19 webinar series. The goal of PGSSC’s virtual webinar was to share the experiences of surgical, anesthesia, and obstetric (SAO) providers on the frontlines of the COVID pandemic, from both high-income countries (HICs), such as the United States and the United Kingdom, as well as low- and middle-income countries (LMICs). Providers shared not only their experiences delivering SAO care during this global pandemic, but also solutions and innovations they and their colleagues developed to address these new challenges. Additionally, the seminar explored the relationship between surgery and health system strengthening and pandemic preparedness, and outlined the way forward, including a roadmap for prioritization and investment in surgical system strengthening. Throughout the discussion, other themes emerged as well, such as the definition of elective surgery and its implications during a persistent global pandemic, the safe and ethical reintroduction of surgical services, and the social inequities exposed by the stress placed on health systems by COVID-19. These proceedings document the perspectives shared by participants through their invited lectures as well as through the panel discussion at the end of the seminar.
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Affiliation(s)
- Elizabeth Miranda
- Program in Global Surgery and Social Change, Harvard Medical School, 641 Huntington Ave, Boston, MA, 02215, USA. .,Division of Vascular Surgery, University of Southern California, Los Angeles, CA, USA.
| | - John G Meara
- Program in Global Surgery and Social Change, Harvard Medical School, 641 Huntington Ave, Boston, MA, 02215, USA.,Department of Plastic and Oral Surgery, Boston Children's Hospital, Boston, MA, USA
| | - Alaska Pendleton
- Program in Global Surgery and Social Change, Harvard Medical School, 641 Huntington Ave, Boston, MA, 02215, USA
| | | | | | | | - Nivaldo Alonso
- Department of Plastic Surgery, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Abebe Bekele
- University of Global Health Equity, Butaro, Rwanda
| | - Kee B Park
- Program in Global Surgery and Social Change, Harvard Medical School, 641 Huntington Ave, Boston, MA, 02215, USA
| | - Paul Farmer
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, USA
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23
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Greydanus DE, Cabral MD, Patel DR. Pelvic inflammatory disease in the adolescent and young adult: An update. Dis Mon 2021; 68:101287. [PMID: 34521505 DOI: 10.1016/j.disamonth.2021.101287] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Pelvic inflammatory disease (PID) is an infection of the female upper genital tract that is typically polymicrobial with classic core involvement of Neisseria gonorrhoeae and/or Chlamydia trachomatis, though other endogenous flora from the vagino-cervical areas can be involved as well. It is often a sexually transmitted disease but other etiologic routes are also noted. A variety of risk factors have been identified including adolescence, young adulthood, adolescent cervical ectropion, multiple sexual partners, immature immune system, history of previous PID, risky contraceptive practices and others. An early diagnosis and prompt treatment are necessary to reduce risks of PID complications such as chronic pelvic pain, ectopic pregnancy and infertility. Current management principles of PID are also reviewed. It is important for clinicians to screen sexually active females for common sexually transmitted infections such as Chlamydia trachomatis and provide safer sex education to their adolescent and young adult patients. Clinicians should provide comprehensive management to persons with PID and utilize established guidelines such as those from the US Centers for Disease Control and Prevention (CDC).
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Affiliation(s)
- Donald E Greydanus
- Department of Pediatric and Adolescent Medicine, Western Michigan University, Homer Stryker M.D. School of Medicine, 1000 Oakland Drive, Kalamazoo, Michigan, 49008, United States of America.
| | - Maria Demma Cabral
- Department of Pediatric and Adolescent Medicine, Western Michigan University, Homer Stryker M.D. School of Medicine, 1000 Oakland Drive, Kalamazoo, Michigan, 49008, United States of America.
| | - Dilip R Patel
- Department of Pediatric and Adolescent Medicine, Western Michigan University, Homer Stryker M.D. School of Medicine, 1000 Oakland Drive, Kalamazoo, Michigan, 49008, United States of America.
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24
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Kells M, Gregas M, Wolfe BE, Garber AK, Kelly-Weeder S. Factors associated with refeeding hypophosphatemia in adolescents and young adults hospitalized with anorexia nervosa. Nutr Clin Pract 2021; 37:470-478. [PMID: 34494697 DOI: 10.1002/ncp.10772] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Refeeding hypophosphatemia (RH) in individuals with anorexia nervosa (AN) is a potentially fatal complication of nutrition restoration; yet, little is known about risk. This retrospective cohort study examined factors found in hospitalized youth with AN that may contribute to RH. METHODS We reviewed medical records of 300 individuals diagnosed with AN admitted between the years of 2010 and 2016. Logistic regression examined factors associated with RH. Multivariate regression examined factors associated with phosphorus nadir. RESULTS For 300 participants, the mean (SD) age was 15.5 (2.5) years, 88.3% were White, and 88.3% were female. Participants lost an average of 11.3 (9.7) kg of body weight and were 82% (12.1) of median body mass index (BMI). Age (P = .022), nasogastric (NG) tube feeding (P = .054), weight gain (P = .003), potassium level (P = .001), and magnesium level (P = .024) were contributors to RH. Odds of RH were 13.7 times higher for each unit reduction in magnesium, 9.2 times higher for each unit reduction in potassium, three times higher in those who received NG feeding, 1.5 times higher for each kg of weight gain, and 1.2 times higher for each year of age. Regarding phosphorus nadir, serum magnesium level (P < .001) and admission BMI (P = .002) contributed significantly. CONCLUSION The results indicate that age, NG feeding, weight gain, electrolyte abnormalities, and BMI on admission are potential indicators of the development of RH in youth. This study identifies clinical risk factors associated with RH and may guide further investigation.
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Affiliation(s)
- Meredith Kells
- Boston Children's Hospital, Division of Adolescent/Young Adult Medicine, Boston, Massachusetts, USA.,Department of Psychiatry and Behavioral Neuroscience, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois, USA
| | - Matt Gregas
- William F. Connell School of Nursing, Boston College, Chestnut Hill, Massachusetts, USA
| | - Barbara E Wolfe
- College of Nursing, University of Rhode Island, Kingston, Rhode Island, USA
| | - Andrea K Garber
- Division of Adolescent and Young Adult Medicine, Department of Pediatrics, University of California, San Francisco, San Francisco, California, USA
| | - Susan Kelly-Weeder
- William F. Connell School of Nursing, Boston College, Chestnut Hill, Massachusetts, USA
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25
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The effect of the Covid-19 outbreak on the management of acute appendicitis: A retrospective comparative cohort study. JOURNAL OF SURGERY AND MEDICINE 2021. [DOI: 10.28982/josam.960850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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Farber ON, Gomez GI, Titan AL, Fisher AT, Puntasecca CJ, Arana VT, Kempinsky A, Wise CE, Bessoff KE, Hawn MT, Korndorffer JR, Forrester JD, Esquivel MM. Impact of COVID-19 on presentation, management, and outcomes of acute care surgery for gallbladder disease and acute appendicitis. World J Gastrointest Surg 2021; 13:859-870. [PMID: 34512909 PMCID: PMC8394376 DOI: 10.4240/wjgs.v13.i8.859] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/31/2021] [Accepted: 07/09/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The ongoing coronavirus disease 2019 (COVID-19) pandemic has significantly disrupted both elective and acute medical care. Data from the early months suggest that acute care patient populations deferred presenting to the emergency department (ED), portending more severe disease at the time of presentation. Additionally, care for this patient population trended towards initial non-operative management.
AIM To examine the presentation, management, and outcomes of patients who developed gallbladder disease or appendicitis during the pandemic.
METHODS A retrospective chart review of patients diagnosed with acute cholecystitis, symptomatic cholelithiasis, or appendicitis in two EDs affiliated with a single tertiary academic medical center in Northern California between March and June, 2020 and in the same months of 2019. Patients were selected through a research repository using international classification of diseases (ICD)-9 and ICD-10 codes. Across both years, 313 patients were identified with either type of gallbladder disease, while 361 patients were identified with acute appendicitis. The primary outcome was overall incidence of disease. Secondary outcomes included presentation, management, complications, and 30-d re-presentation rates. Relationships between different variables were explored using Pearson’s r correlation coefficient. Variables were compared using the Welch’s t-Test, Chi-squared tests, and Fisher’s exact test as appropriate.
RESULTS Patients with gallbladder disease and appendicitis both had more severe presentations in 2020. With respect to gallbladder disease, more patients in the COVID-19 cohort presented with acute cholecystitis compared to the control cohort [50% (80) vs 35% (53); P = 0.01]. Patients also presented with more severe cholecystitis in 2020 as indicated by higher mean Tokyo Criteria Scores [mean (SD) 1.39 (0.56) vs 1.16 (0.44); P = 0.02]. With respect to appendicitis, more patients were diagnosed with a perforated appendix at presentation in 2020 [20% (36) vs 16% (29); P = 0.02] and a greater percentage were classified as emergent cases using the emergency severity index [63% (112) vs 13% (23); P < 0.001]. While a greater percentage of patients were admitted to the hospital for gallbladder disease in 2020 [65% (104) vs 50% (76); P = 0.02], no significant differences were observed in hospital admissions for patients with appendicitis. No significant differences were observed in length of hospital stay or operative rate for either group. However, for patients with appendicitis, 30-d re-presentation rates were significantly higher in 2020 [13% (23) vs 4% (8); P = 0.01].
CONCLUSION During the COVID-19 pandemic, patients presented with more severe gallbladder disease and appendicitis. These findings suggest that the pandemic has affected patients with acute surgical conditions.
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Affiliation(s)
- Orly Nadell Farber
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Giselle I Gomez
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Ashley L Titan
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Andrea T Fisher
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Christopher J Puntasecca
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Veronica Toro Arana
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Arielle Kempinsky
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Clare E Wise
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Kovi E Bessoff
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Mary T Hawn
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - James R Korndorffer Jr
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Joseph D Forrester
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
| | - Micaela M Esquivel
- Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94305, United States
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27
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Li J. Revisiting delayed appendectomy in patients with acute appendicitis. World J Clin Cases 2021; 9:5372-5390. [PMID: 34307591 PMCID: PMC8281431 DOI: 10.12998/wjcc.v9.i20.5372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 05/04/2021] [Accepted: 05/18/2021] [Indexed: 02/06/2023] Open
Abstract
Acute appendicitis (AA) is the most common acute abdomen, and appendectomy is the most common nonelective surgery performed worldwide. Despite the long history of understanding this disease and enhancements to medical care, many challenges remain in the diagnosis and treatment of AA. One of these challenges is the timing of appendectomy. In recent decades, extensive studies focused on this topic have been conducted, but there have been no conclusive answers. From the onset of symptoms to appendectomy, many factors can cause delay in the surgical intervention. Some are inevitable, and some can be modified and improved. The favorable and unfavorable results of these factors vary according to different situations. The purpose of this review is to discuss the causes of appendectomy delay and its risk-related costs. This review also explores strategies to balance the positive and negative effects of delayed appendectomy.
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Affiliation(s)
- Jian Li
- Department of General Surgery, The Third Hospital of Mianyang, Sichuan Mental Health Center, Mianyang 621000, Sichuan Province, China
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28
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Kobayashi T, Hidaka E, Koganezawa I, Nakagawa M, Yokozuka K, Ochiai S, Gunji T, Ozawa Y, Hikita K, Sano T, Tomita K, Tabuchi S, Chiba N, Kawachi S. Prediction Model for Failure of Nonoperative Management of Uncomplicated Appendicitis in Adults. World J Surg 2021; 45:3041-3047. [PMID: 34156478 DOI: 10.1007/s00268-021-06213-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Prediction of failure of nonoperative management (NOM) in uncomplicated appendicitis (UA) is difficult. This study aimed to establish a new prediction model for NOM failure in UA. METHODS We included 141 adults with UA who received NOM as initial treatment. NOM failure was defined as conversion to operation during hospitalization. Independent predictors of NOM failure were identified using logistic regression analysis. A prediction model was established based on these independent predictors. Receiver operating characteristic (ROC) curve analysis and the Hosmer-Lemeshow test were used to assess the discrimination and calibration of the model, respectively, and risk stratification using the model was performed. RESULTS Among 141 patients, NOM was successful in 120 and unsuccessful in 21. Male sex, maximal diameter of the appendix, and the presence of fecalith were identified as independent predictors of NOM failure for UA. A prediction model with scores ranging from 0 to 3 was established using the three variables (male sex, maximal diameter of the appendix ≥ 15 mm, and the presence of fecalith). The area under the ROC curve for the new prediction model was 0.778, and the model had good calibration (P = 0.476). A score of 2 yielded a sensitivity of 71.4% and a specificity of 90.8%. Patients were stratified into low (0-1), moderate (2), and high (3) risk categories, which had NOM rates of 5.2%, 47.1%, and 77.8%, respectively. CONCLUSIONS Our prediction model may predict NOM failure in UA with good diagnostic accuracy and help surgeons select appropriate treatments.
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Affiliation(s)
- Toshimichi Kobayashi
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Eiji Hidaka
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Itsuki Koganezawa
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Masashi Nakagawa
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Kei Yokozuka
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Sigeto Ochiai
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Takahiro Gunji
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Yosuke Ozawa
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Kosuke Hikita
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Toru Sano
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Koichi Tomita
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Satoshi Tabuchi
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Naokazu Chiba
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan
| | - Sigeyuki Kawachi
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
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29
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General Versus Neuraxial Anesthesia for Appendectomy: A Multicenter International Study. World J Surg 2021; 45:3295-3301. [PMID: 33554296 DOI: 10.1007/s00268-021-05978-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND In resource-limited countries, open appendectomy is still performed under general anesthesia (GA) or neuraxial anesthesia (NA). We sought to compare the postoperative outcomes of appendectomy under NA versus GA. METHODS We conducted a post hoc analysis of the International Patterns of Opioid Prescribing (iPOP) multicenter study. All patients ≥ 16 years-old who underwent an open appendectomy between October 2016 and March 2017 in one of the 14 participating hospitals were included. Patients were stratified into two groups: NA-defined as spinal or epidural-and GA. All-cause morbidity, hospital length of stay (LOS), and pain severity were assessed using univariate analysis followed by multivariable logistic regression adjusting for the following preoperative characteristics: age, gender, body mass index (BMI), smoking, history of opioid use, emergency status, and country. RESULTS A total of 655 patients were included, 353 of which were in the NA group and 302 in the GA group. The countries operating under NA were Colombia (39%), Thailand (31%), China (23%), and Brazil (7%). Overall, NA patients were younger (mean age (SD): 34.5 (14.4) vs. 40.7 (17.9), p-value < 0.001) and had a lower BMI (mean (SD): 23.5 (3.8) vs. 24.3 (5.2), p-value = 0.040) than GA patients. On multivariable analysis, NA was independently associated with less postoperative complications (OR, 95% CI: 0.30 [0.10-0.94]) and shorter hospital LOS (LOS > 3 days, OR, 95% CI: 0.47 [0.32-0.68]) compared to GA. There was no difference in postoperative pain severity between the two techniques. CONCLUSIONS Open appendectomy performed under NA is associated with improved outcomes compared to that performed under GA. Further randomized controlled studies should examine the safety and value of NA in lower abdominal surgery.
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30
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Manatakis DK, Aheimastos V, Antonopoulou MI, Agalianos C, Tsiaoussis J, Xynos E. Unfinished Business: A Systematic Review of Stump Appendicitis. World J Surg 2020; 43:2756-2761. [PMID: 31375871 DOI: 10.1007/s00268-019-05101-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Stump appendicitis is defined as interval inflammation of any residual appendicular tissue, after an appendicectomy. We present a systematic review of case series and case reports on stump appendicitis, emphasising on risk factors, diagnosis and surgical management. METHODS The English literature (1945-2018) was reviewed, using PubMed, Embase and GoogleScholar, combining the terms "appendix", "appendicitis", "stump", "residual", "recurrent" and "retained". In total, 127 studies were included, describing 164 patients (males 59%, mean age 36 ± 17 years). RESULTS Index surgery was open in 59% and laparoscopic in 38%. It was described as "difficult" or "complicated" in 31%. 20% of patients reported episodes of recurrent abdominal pain during the time interval between index and stump appendicitis (range 2 weeks to 60 years, median 2 years). Right lower quadrant pain was the most frequent complain (88%), leukocytosis was found in 56%, whereas 92% of patients underwent imaging testing, which was diagnostic or highly suspicious in 67.5%. Mean delay between beginning of symptoms and surgery was 2.4 ± 2.3 days. The operative approach was open in 61% and laparoscopic in 35% of cases. The operation was characterised as "difficult" or "complicated" in 45%. In the majority (88%), a completion stump appendicectomy was performed, with 11% requiring more extensive procedures. Mean length of resected stump was 3.1 ± 1.6 cm (range 0.5-10 cm). CONCLUSIONS Stump appendicitis may occur following both open and laparoscopic approach, when the residual stump is > 0.5 cm. Its clinical significance lies in the delayed diagnosis, leading to higher incidence of complications and the need for more extensive surgery.
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Affiliation(s)
- Dimitrios K Manatakis
- Department of Surgery, Athens Naval and Veterans Hospital, 11521, Athens, Greece.
- Medical School, University of Crete, Heraklion, Crete, Greece.
| | - Vasileios Aheimastos
- Department of Surgery, Athens Naval and Veterans Hospital, 11521, Athens, Greece
| | | | - Christos Agalianos
- Department of Surgery, Athens Naval and Veterans Hospital, 11521, Athens, Greece
| | - John Tsiaoussis
- Medical School, University of Crete, Heraklion, Crete, Greece
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31
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Is interval appendectomy really needed? A closer look at neoplasm rates in adult patients undergoing interval appendectomy after complicated appendicitis. Surg Endosc 2020; 35:3855-3860. [PMID: 32676725 DOI: 10.1007/s00464-020-07798-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/07/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND The treatment algorithm for appendicitis is evolving, with recent interest in non-operative management. However, the safety of non-operative management for patients with complicated appendicitis has been questioned due to concern for increased risk of occult appendiceal neoplasm in this patient population. Our study aims to determine the rate of neoplasms discovered during interval appendectomy for patients with complicated appendicitis and determine the necessity of interval appendectomy. METHODS A retrospective chart review was conducted on interval appendectomies performed in adult patients for complicated appendicitis at our institution over a 9-year period. Interval appendectomy was defined as appendectomy delayed from initial presentation with appendicitis. Complicated appendicitis was defined as perforation, phlegmon, and/or abscess as seen on computed tomography at time of presentation. RESULTS We identified 402 patients who underwent interval appendectomy for complicated appendicitis. A total of 36 appendiceal neoplasms were discovered on final pathology with an overall neoplasm rate of 9%. Patients with an appendiceal neoplasm were significantly older (56.6 years vs 45.1 years, p < 0.01). No patients under the age of 30 had a neoplasm. The rate of appendiceal neoplasms in patients 30 years and older was 11%. The rate for patients 50 years and older was 16%. For patients 80 years and older, the rate of appendiceal neoplasm was 43%. CONCLUSION The risk of occult appendiceal neoplasm is low in patients under the age of 30; however, there was an 11% rate of appendiceal neoplasm in patients 30 years and older. The risk increases with increased age, with a 16% risk in patients 50 years and older. Given these findings, we recommend consideration of interval appendectomy in all patients 30 years and older with complicated appendicitis.
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32
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Seawell J, Sciarretta JD, Pahlkotter M, Muertos K, Onayemi A, Davis JM. The Understated Malignancy Potential of Nonoperative Acute Appendicitis. Am Surg 2020. [DOI: 10.1177/000313481908500728] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cancer of the appendix is rare and is most commonly found incidentally on pathology after an appendectomy for uncomplicated appendicitis (UA). The medical management alternative with antibiotics and observation remains an ongoing debate. The purpose of our study was to develop modern epidemiological data for adult patients completing an appendectomy for UA secondary to an appendiceal neoplasm (AN). ACS-NSQIP database was queried (2005–2016) to identify patients completing an appendectomy. Cohorts of patients who were diagnosed with UA and an AN were included in the study. Relevant perioperative clinical and outcomes data were collected. Type of AN, surgical procedure, and mortality were analyzed. A total of 239,615 UA patients were identified, of whom 2,773 (1.2%) met the inclusion criteria of AN. Patients with AN were predominantly white (79.5%), with a mean age of 54.5 ± 15.9 years, and 54.6 per cent were females. AN pathology findings included malignant neoplasm (64.5%), malignant carcinoid (17.3%), benign carcinoid (9.3%), and benign neoplasm (8.8%). The overall reported incidence was 1.2 per cent and the mortality rate was 0.7 per cent. Our study emphasizes surgical intervention in adult UA maintains a 1 per cent incidence of AN, and treatment with antibiotics alone will presumably lead to a delay in surgical treatment and progression of disease.
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Affiliation(s)
- Jaimie Seawell
- Grand Strand Medical Center, Edward Via College of Osteopathic Medicine, Myrtle Beach, South Carolina
| | - Jason D. Sciarretta
- Grand Strand Medical Center, University of South Carolina, Myrtle Beach, South Carolina; and
| | - Maranda Pahlkotter
- Grand Strand Medical Center, University of South Carolina, Myrtle Beach, South Carolina; and
| | - Keely Muertos
- Grand Strand Medical Center, University of South Carolina, Myrtle Beach, South Carolina; and
| | - Ayolola Onayemi
- Palisades Medical Center, Hackensack Meridian School of Medicine, North Bergen, New Jersey
| | - John M. Davis
- Palisades Medical Center, Hackensack Meridian School of Medicine, North Bergen, New Jersey
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Qian S, Vasileiou G, Dodgion C, Ray-Zack MD, Zakrison T, Rattan R, Namias N, Yeh DD. Narrow- versus Broad-Spectrum Antibiotics for Simple Acute Appendicitis Treated by Appendectomy: A Post Hoc Analysis of EAST MUSTANG Study. J Surg Res 2020; 254:217-222. [PMID: 32474194 DOI: 10.1016/j.jss.2019.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/25/2019] [Accepted: 04/03/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND We sought to compare the effectiveness of narrow- versus broad-spectrum antibiotics (abx) in preventing infectious complications in adults with acute appendicitis treated with appendectomy. METHODS In this post hoc analysis of a prospective multicenter observational study of appendicitis in adults (≥18 y) conducted from January 2017 to June 2018, we included only patients with simple appendicitis. Subjects were grouped based on receipt of broad-spectrum or narrow-spectrum abx before and/or after appendectomy. Outcomes compared were surgical site infection, intra-abdominal abscess, secondary interventions (percutaneous drainage or operation), emergency department (ED) visits, 30-d readmission, and hospital length of stay. RESULTS A total of 2336 subjects were analyzed. In comparing narrow (n = 778) versus broad (n = 1558) groups, there were no differences in male sex (53% versus 54%, P = 0.704), white blood cell (13.0 ± 3.9 versus 13.4 ± 4.5, P = 0.05), Alvarado score (6 [5-7] versus 6 [5-7], P = 0.25), or Charlson comorbidity index (0 [0-1] versus 0 [0-1], P = 0.09). A total of 688 (29%) received postoperative abx, [184 (24%) narrow and 504 (32%) broad, P < 0.001] for a median 5 [2-7] d [42 (23%) narrow and 235 (47%) broad, P < 0.001]. There were no significant differences between narrow and broad groups in surgical site infection, intra-abdominal abscess, secondary interventions, ED visits, or hospital readmissions. CONCLUSIONS Significant practice variation in duration and spectrum of antibiotic adjunct for surgical treatment of simple acute appendicitis treatment is evident, and broad-spectrum abx did not offer clinical advantages over narrow-spectrum abx. Restriction of antibiotic spectrum should be considered, although randomized trials are required to overcome selection bias.
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Affiliation(s)
- Sinong Qian
- DeWitt Daughtry Family Department of Surgery, University of Miami, Miami, Florida.
| | - Georgia Vasileiou
- DeWitt Daughtry Family Department of Surgery, University of Miami, Miami, Florida
| | - Chris Dodgion
- Division of Trauma and Critical Care, Medical College of Wisconsin, Milwaukee, Wisconsin
| | | | - Tanya Zakrison
- DeWitt Daughtry Family Department of Surgery, University of Miami, Miami, Florida
| | - Rishi Rattan
- DeWitt Daughtry Family Department of Surgery, University of Miami, Miami, Florida
| | - Nicholas Namias
- DeWitt Daughtry Family Department of Surgery, University of Miami, Miami, Florida
| | - D Dante Yeh
- DeWitt Daughtry Family Department of Surgery, University of Miami, Miami, Florida
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Iuamoto LR, Meyer A. An invited commentary on "Reducing the negative appendectomy rate with the laparoscopic appendicitis score; a multicenter prospective cohort and validation study" [Int. J. Surg. 2020 Epub ahead of print]. Int J Surg 2020; 79:267-268. [PMID: 32450262 DOI: 10.1016/j.ijsu.2020.05.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 05/18/2020] [Indexed: 11/19/2022]
Affiliation(s)
- Leandro Ryuchi Iuamoto
- Department of Surgery, Laboratory of Medical Research 02, Division of Human Structural Topography, University of Sao Paulo School of Medicine, Sao Paulo, SP, Brazil
| | - Alberto Meyer
- Hospital Das Clínicas, Department of Gastroenterology, University of Sao Paulo School of Medicine, Sao Paulo, SP, Brazil.
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Smith LE, Levy AP. Ischemic appendicitis due to pelvic adhesions: a case report. J Surg Case Rep 2020; 2020:rjaa055. [PMID: 32280439 PMCID: PMC7136704 DOI: 10.1093/jscr/rjaa055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 02/25/2020] [Indexed: 11/23/2022] Open
Abstract
Acute appendicitis is one of the most common etiologies of a surgical abdomen. The lifetime risk is estimated to be 7%. Over 300 000 appendectomies occur annually in the USA. The pathophysiology of appendicitis in most patients is believed to be caused by outflow obstruction of the appendiceal lumen leading to increased intraluminal pressure, venous congestion and mucosal ischemia. This can occur due to a variety of internal obstructive causes such as a fecalith, lymphoid hyperplasia, parasites or a tumor. To date, no case reports describing appendicitis secondary to external compression of the appendix leading to outflow obstruction been documented in the literature. This case report describes a 61-year-old female who had a thick, adhesive band compressing the base of her appendix, which created external outflow obstruction leading to the development of appendicitis.
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Affiliation(s)
- Lauren E Smith
- Grandview Medical Center, Department of Surgery, Dayton, OH, USA
| | - And Paul Levy
- Grandview Medical Center, Department of Surgery, Dayton, OH, USA
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Guaitoli E, Gallo G, Cardone E, Conti L, Famularo S, Formisano G, Galli F, Giuliani G, Martino A, Pasculli A, Patini R, Soriero D, Pappalardo V, Casoni Pattacini G, Sparavigna M, Meniconi R, Mazzari A, Barra F, Orsenigo E, Pertile D. Consensus Statement of the Italian Polispecialistic Society of Young Surgeons (SPIGC): Diagnosis and Treatment of Acute Appendicitis. J INVEST SURG 2020; 34:1089-1103. [PMID: 32167385 DOI: 10.1080/08941939.2020.1740360] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background: Acute appendicitis (AA) is one of the most common causes of abdominal pain requiring surgical intervention. Approximately 20% of AA cases are characterized by complications such as gangrene, abscesses, perforation, or diffuse peritonitis, which increase patients' morbidity and mortality. Diagnosis of AA can be difficult, and evaluation of clinical signs, laboratory index and imaging should be part of the management of patients with suspicion of AA.Methods: This consensus statement was written in relation to the most recent evidence for diagnosis and treatment of AA, performing a literature review on the most largely adopted scientific sources. The members of the SPIGC (Italian Polispecialistic Society of Young Surgeons) worked jointly to draft it. The recommendations were defined and graded based on the current levels of evidence and in accordance with the criteria adopted by the American College of Chest Physicians (CHEST) for the strength of the recommendations.Results: Fever and migratory pain tend to be present in patients with suspicion of AA. Laboratory and radiological examinations are commonly employed in the clinical practice, but today also scoring systems based on clinical signs and laboratory data have slowly been adopted for diagnostic purpose. The clinical presentation of AA in children, pregnant and elderly patients can be unusual, leading to more difficult and delayed diagnosis. Surgery is the best option in case of complicated AA, whereas it is not mandatory in case of uncomplicated AA. Laparoscopic surgical treatment is feasible and recommended. Postoperative antibiotic treatment is recommended only in patients with complicated AA.
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Affiliation(s)
| | - Gaetano Gallo
- Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy
| | - Eleonora Cardone
- Department of Surgery, Santa Maria del Popolo degli Incurabili Hospital, Napoli, Italy
| | - Luigi Conti
- Department of Surgery, G. Da Saliceto Hospital, Piacenza, Italy
| | - Simone Famularo
- Department of Medicine and Surgery University of Milan Bicocca HPB Unit, San Gerardo Hospital, Monza, Italy
| | - Giampaolo Formisano
- Department of General and Minimally Invasive Surgery, Misericordia Hospital, Grosseto, Italy
| | | | - Giuseppe Giuliani
- Department of General and Minimally Invasive Surgery, Misericordia Hospital, Grosseto, Italy
| | - Antonio Martino
- Department of General Surgery, University of Genoa, Genova, Italy
| | | | - Romeo Patini
- Odontostomatology and Oral Surgery, Sacro Cuore Hospital, Rome, Italy
| | - Domenico Soriero
- Department of General Surgery, University of Genoa, Genova, Italy
| | | | | | - Marco Sparavigna
- Department of General Surgery, University of Genoa, Genova, Italy
| | - Roberto Meniconi
- Department of General Surgeon and Transplantations, San Camillo-Forlanini Hospital, Rome, Italy
| | - Andrea Mazzari
- Mini Invasive and General Surgery, Cristo Re Hospital, Rome, Italy
| | - Fabio Barra
- Academic Unit of Obstetrics and Gynaecology, IRCCS Ospedale Policlinico San Martino, Genova, Italy.,Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genova, Genova, Italy
| | - Elena Orsenigo
- Department of General and Emergency Surgery, San Raffaele Scientific Institute, Milano, Italy
| | - Davide Pertile
- Department of General Surgery, University of Genoa, Genova, Italy
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Abstract
The purpose of this study is to review the cases of postcolonoscopy appendicitis (PCA) reported in the literature. A comprehensive search using PubMed, EMBASE, Scopus, and Google Scholar identified 57 cases. The median age at presentations of PCA was 55 years. PCAs typically occurred during the first 24 hours after colonoscopy, and the majority developed after diagnostic colonoscopy. Clinical presentations were similar to those with common acute appendicitis, though with a high perforation rate. Most patients were correctly diagnosed using ultrasound or computed tomography scan. Treatment included open appendicectomy, laparoscopic appendicectomy or cecotomy, radiologic drainage of the abscess, nonoperative treatment with antibiotics. In addition to barotrauma, fecalith impaction into the appendiceal lumen, direct trauma to the appendiceal orifice, and underlying ulcerative colitis, a pre-existing subclinical disease of the appendix seems to play an important role in the pathogenesis. For PCA, timely diagnosis and management are crucial to attain a satisfactory outcome.
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Eurboonyanun K, Rungwiriyawanich P, Chamadol N, Promsorn J, Eurboonyanun C, Srimunta P. Accuracy of Nonenhanced CT vs Contrast-Enhanced CT for Diagnosis of Acute Appendicitis in Adults. Curr Probl Diagn Radiol 2020; 50:315-320. [PMID: 32037023 DOI: 10.1067/j.cpradiol.2020.01.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/09/2019] [Accepted: 01/06/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Acute appendicitis is one of the most common causes of acute abdominal pain requiring emergency intervention. It is often difficult for the clinician to make an accurate diagnosis due to nonspecific and overlapping clinical symptoms. Computed tomography (CT) has become the imaging modality of choice for the evaluation of suspected acute appendicitis. The main purpose of our study was to compare nonenhanced CT (NECT) with contrast-enhanced CT (CECT) for the diagnosis of acute appendicitis. MATERIAL AND METHODS A total of 140 patients were enrolled in the study. Two abdominal radiologists-masked to both the clinical information and the final diagnosis-retrospectively reviewed the computed tomographic findings and made an imaging diagnosis based on (1) NECT only, (2) CECT only, and (3) both NECT and CECT. With the final diagnosis as the reference standard, the accuracy of each CT technique was estimated. RESULTS The respective sensitivity, specificity, and accuracy for NECT, CECT, and NECT + CECT for the diagnosis of acute appendicitis were 80.7%, 86.7%, and 84.3%; 86.0%, 81.9%, and 83.6%; and, 87.7%, 80.7%, and 83.6%. There was no significant difference in the diagnosis of acute appendicitis among the 3 techniques. In order to make a correct diagnosis, the presence of at least 3 imaging findings for NECT or at least 4 for CECT had the best diagnostic accuracy. We also found that 9.25 mm was the optimal cut-off threshold for the detection of patients with acute appendicitis. CONCLUSION Our study allowed direct comparison between NECT, CECT, and NECT + CECT combined. There was no difference in the ability of each CT technique for diagnosing patients with acute appendicitis. For a patient whom iodinated contrast media is contraindicated or a patient who has an increased risk of severe adverse reaction, we would encourage the use of NECT because it provides comparable diagnostic accuracy without further exposing such patient to the contrast media.
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Affiliation(s)
- Kulyada Eurboonyanun
- Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
| | | | - Nittaya Chamadol
- Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Julaluck Promsorn
- Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Chalerm Eurboonyanun
- Department of Surgery, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Piyachat Srimunta
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
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Tachezy M, Izbicki JR. [Evidence for standard surgical procedures: appendicitis, diverticulitis and cholecystitis]. Chirurg 2019; 90:351-356. [PMID: 30635701 DOI: 10.1007/s00104-018-0779-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Acute appendicitis, cholecystitis and sigmoid diverticulitis are the most common inflammatory visceral surgical emergencies. According to the principles of evidence-based medicine, treatment methods and surgical indications should be constantly questioned and validated by high-quality clinical studies. OBJECTIVE To identify and classify the current evidence on surgical treatment of acute appendicitis, cholecystitis and sigmoid diverticulitis. MATERIAL AND METHODS Targeted literature search in Medline, the Cochrane Library and study registers (clinicaltrials.gov). RESULTS AND CONCLUSION The indications for surgery are changing due to increasing numbers of high-quality clinical studies. Conservative treatment seems to be feasible in the early stages. In contrast, many surgical steps have not yet been sufficiently validated. Furthermore, there is a great need for high-quality, prospective randomized clinical trials, so that promotion of studies and the study culture in surgery should continue to be of greatest interest.
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Affiliation(s)
- M Tachezy
- Klinik für Allgemein‑, Viszeral- und Thoraxchirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Deutschland.
| | - J R Izbicki
- Klinik für Allgemein‑, Viszeral- und Thoraxchirurgie, Universitätsklinikum Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Deutschland
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Boardman TJ, Musisca NJ. Recurrent Appendicitis Caused by a Retained Appendiceal Tip: A Case Report. J Emerg Med 2019; 57:232-234. [PMID: 31174902 DOI: 10.1016/j.jemermed.2019.03.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 03/06/2019] [Accepted: 03/30/2019] [Indexed: 01/07/2023]
Abstract
BACKGROUND Acute appendicitis is one of the most common surgical emergencies, and it is treated definitively with appendectomy. Recurrent appendicitis is a rare entity, being reported after approximately 1 in 50,000 appendectomies. It is typically caused by inflammation of the appendiceal stump. Inflammation of a retained appendiceal tip is a unique entity that can also cause recurrent appendicitis and presents similarly to primary appendicitis. CASE REPORT We present a case of a 50-year-old man who had undergone laparoscopic appendectomy 1 year earlier and who subsequently presented with a chief complaint of right lower quadrant abdominal pain. The diagnosis of recurrent appendicitis caused by a retained appendiceal tip was made after a computed tomography scan. The patient underwent successful laparoscopic removal of the retained appendiceal fragment. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: The etiology of recurrent appendicitis is separate from the stump appendicitis that has been well described in the literature. Retained tip appendicitis poses a diagnostic dilemma because it is uncommon and, if missed, can lead to complications, such as perforation and severe sepsis. Recurrent appendicitis must be in the differential diagnosis for patients who are post-appendectomy and who present with right lower quadrant abdominal pain.
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Affiliation(s)
- Timothy J Boardman
- Department of Emergency Medicine, Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Nicholas J Musisca
- Department of Emergency Medicine, Warren Alpert Medical School of Brown University, Providence, Rhode Island
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