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Open research questions in Appendicitis Diagnosis and Management

105 gap statements mined from Appendicitis Diagnosis and Management papers in our 4.5M-paper local library, which holds 631 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • There is a need for a reliable and accurate scoring system for diagnosing appendicitis. The current scoring systems have limitations and variability in their diagnostic performance.

    Comparison of the diagnostic values of MASS, RIPASA, AIR, and AAS scores in adult patients presenting to the emergency department with suspected appendicitis · 2026 · DOI

  • The main limitations of our study include its single-center design, the operator-dependent nature of parameters such as physical examination findings, and the interpretation of imaging studies by different on-call radiologists rather than by a standardized group of readers. As only adults aged 18 years and older were enrolled, the findings cannot be generalized to pediatric, adolescent, or pregnant populations.

    Comparison of the diagnostic values of MASS, RIPASA, AIR, and AAS scores in adult patients presenting to the emergency department with suspected appendicitis · 2026 · DOI

  • Perforation peritonitis is a critical surgical emergency with significant morbidity and mortality. The MPI has been extensively studied, but its efficacy in predicting mortality and morbidity in patients with perforation peritonitis needs to be evaluated. The study had a relatively small sample size.

    The Role of the Mannheim Peritonitis Index in Predicting Mortality and Morbidity in Perforation Peritonitis Patients: A Prospective Cohort Study in a Tertiary Care Hospital in Southern Rajasthan · 2026 · DOI

  • There is a need to evaluate the efficacy of the MPI in predicting mortality and morbidity in patients with perforation peritonitis. The study aims to address this gap by assessing the predictive efficacy of the MPI.

    The Role of the Mannheim Peritonitis Index in Predicting Mortality and Morbidity in Perforation Peritonitis Patients: A Prospective Cohort Study in a Tertiary Care Hospital in Southern Rajasthan · 2026 · DOI

  • The impact of the COVID-19 pandemic on the pattern of acute appendicitis is not well understood. There is a need to evaluate changes in the number, clinical presentation, and surgical approach of appendectomies during the pandemic.

    Impact of the COVID-19 pandemic on the pattern of acute appendicitis, a single-center study · 2026 · DOI

  • The optimal treatment for appendicular mass is debated. There is a need to investigate the effectiveness of conservative management in treating appendicular mass.

    Outcome of Conservative Management of Appendicular Mass in Pediatric Age Group in Benghazi Children's Hospital · 2026 · DOI

  • The current diagnosis methods for acute appendicitis have limitations. There is a need for a more accurate and reliable scoring system to guide risk stratification and management.

    Validation of the Appendicitis Inflammatory Response (AIR) Score in Diagnosing and Classifying Acute Appendicitis: A Prospective Study at a Tertiary Hospital in Bengaluru, India · 2026 · DOI

  • There is a need to improve psychological well-being and postoperative recovery in pediatric patients undergoing laparoscopic appendectomy. The current standard of care may not adequately address the psychological needs of these patients.

    Influence of integrated operating room nursing and psychological intervention on anxiety, depression, and recovery in pediatric laparoscopic appendectomy · 2026 · DOI

  • The presence of collinearity may influence coefficient estimates and their interpretation. The lack of calibration analysis and internal validation limits the score's interpretability and clinical transportability.

    Letter to the editor regarding the article “Development of a new predictive clinico-biological score for acute appendicitis in the pediatric population” · 2026 · DOI

  • Further methodological clarification and validation are required before confident clinical adoption can be supported. Future research should examine the development of diagnostic tools for pediatric emergencies with improved methodological transparency.

    Letter to the editor regarding the article “Development of a new predictive clinico-biological score for acute appendicitis in the pediatric population” · 2026 · DOI

  • The study highlights the need for further research on the diagnosis and treatment of rare causes of acute abdomen.

    Rare causes of acute abdomen in a paediatric surgery department: a 5-years review. · 2026 · DOI

  • The diagnostic accuracy of ultrasound for acute appendicitis in pediatric patients is not well established. The factors that affect the diagnostic accuracy of ultrasound are not well understood.

    What are The Sensitivity, Specificity, and Positive Predictive Value of Ultrasound for Diagnosing Acute Appendicitis in Pediatric Patients? : A Systematic Review · 2026 · DOI

  • Limited generalizability of clinical prediction tools due to differences in bacterial epidemiology and practice norms.

    External validation of the Melbourne ASSET score for pediatric cellulitis · 2026 · DOI

  • Studies systematically comparing multiple biochemical markers for differentiating UCA from CA remain relatively limited. The study aims to address this gap by identifying biochemical markers associated with CA and establishing a predictive model.

    The role of serum biochemical markers in early prediction of complicated appendicitis: a single-center retrospective analysis · 2026 · DOI

  • Differentiating between UA and CA is a diagnostic challenge. Existing scoring systems and single biomarkers lack sufficient specificity. The study's retrospective design inherently carries the typical limitations and potential biases of such an approach.

    Refining Paediatric Appendicitis Severity Assessment through a Novel Logistic Regression Model Utilising Routine Biomarkers · 2026 · DOI

  • The need to assess the reliability of resident-performed ultrasonography in diagnosing acute appendicitis. The limited evidence on the diagnostic agreement between emergency medicine residents and radiologists in the ultrasonographic evaluation of suspected acute appendicitis.

    Diagnostic agreement between emergency medicine residents after dedicated appendix ultrasound training and radiologists in the ultrasonographic evaluation of suspected acute appendicitis · 2026 · DOI

  • These differences emphasise the lack of standardised intraoperative criteria and underscore the need for caution when interpreting macroscopic findings in isolation.

    Management of a macroscopically normal appendix during surgery for suspected appendicitis: Evidence for clinical practice, healthcare resource use and surgical policy · 2026 · DOI

  • Future research should focus on well-designed prospective multicentre studies using standardized definitions of both macroscopically normal appendix and histological appendicitis.

    Management of a macroscopically normal appendix during surgery for suspected appendicitis: Evidence for clinical practice, healthcare resource use and surgical policy · 2026 · DOI

  • Bleeding occurred despite continuous PPI prophylaxis, suggesting that PPI cover alone is insufficient when multiple risk factors coexist; the clinical implication is that risk-factor-based (rather than universal) PPI prophylaxis, together with monitoring of vitamin K-dependent coagulation, should be considered in critically ill children receiving high-dose corticosteroids and prolonged broad-spectrum antibiotics.

    Severe Upper Gastrointestinal Bleeding in a 12-Year-Old Boy with Acute SARS-CoV-2 Infection Complicating Perforated Appendicitis: A Case Report and Differential Considerations · 2026 · DOI

  • Large multicenter prospective controlled trials are required to objectively compare the safety and efficacy of different treatment modalities. Prolonged long-term monitoring is necessary to evaluate long-term abscess recurrence and tissue recovery.

    Endoscopic drainage and one-stage titanium clip closure for appendiceal root abscess mimicking cecal submucosal tumor: a case report · 2026 · DOI

  • The lack of independent reference standards for validating systemic inflammatory indices. The need for adequately powered analyses and standardized reporting.

    Methodological considerations in the use of systemic inflammatory indices for risk stratification in acute appendicitis · 2026 · DOI

  • No feasible endoscopic treatment exists for appendiceal orifice occlusion. The use of guidewires and biopsy forceps is a novel approach for appendiceal orifice closure.

    Guidewires and biopsy forceps: a novel approach for appendiceal orifice closure in endoscopic retrograde appendicitis therapy · 2026 · DOI

  • Estudos sobre a eficácia da Ressonância Magnética (RM) no abdome agudo - Análise da relação entre a escolha da modalidade de imagem e a morbimortalidade - Desenvolvimento de protocolos de aquisição e achados diagnósticos específicos para diferentes faixas…

    AVALIAÇÃO POR IMAGEM E CRITÉRIOS DE DIAGNÓSTICO RADIOLÓGICO NO ABDOME AGUDO · 2026 · DOI

  • A necessidade de uma avaliação por imagem eficaz no abdome agudo - A limitação da ultrassonografia em pacientes obesos ou com meteorismo - A importância da integração dos dados clínicos com a modalidade de…

    AVALIAÇÃO POR IMAGEM E CRITÉRIOS DE DIAGNÓSTICO RADIOLÓGICO NO ABDOME AGUDO · 2026 · DOI

  • The underrepresentation of women in research studies. The neglect of women's health in research. The perpetuation of historical bias in medical education and emergency care.

    Gender disparities in analgesia for acute abdominal pain – a call to action for emergency medicine · 2026 · DOI

Most-cited papers in Appendicitis Diagnosis and Management

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Open questions raised by papers listed on this page include: (1) There is a need for a reliable and accurate scoring system for diagnosing appendicitis (“Comparison of the diagnostic values of MASS, RIPASA, AIR, and AAS scores in…”, 2026); (2) There is a need to evaluate the efficacy of the MPI in predicting mortality and morbidity in patients with perforation peritonitis (“The Role of the Mannheim Peritonitis Index in Predicting Mortality and…”, 2026); (3) The impact of the COVID-19 pandemic on the pattern of acute appendicitis is not well understood (“Impact of the COVID-19 pandemic on the pattern of acute appendicitis, a…”, 2026); (4) There is a need to investigate the effectiveness of conservative management in treating appendicular mass (“Outcome of Conservative Management of Appendicular Mass in Pediatric Age Group…”, 2026); (5) There is a need for a more accurate and reliable scoring system to guide risk stratification and management (“Validation of the Appendicitis Inflammatory Response (AIR) Score in Diagnosing…”, 2026). 105 gap statements have been mined from Appendicitis Diagnosis and Management papers in our 4.5M-paper local library, which holds 631 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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