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Open research questions in Appendicitis Diagnosis and Management

62 unresolved questions extracted from the limitations and future-work sections of 327 Appendicitis Diagnosis and Management papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • The need for a model to detect missed appendicitis in low-risk pediatric patients. The difficulty in diagnosing appendicitis in pediatric patients with a PAS <4.

    A Prospective Model for Detecting Missed Appendicitis in Low-Risk Pediatric Patients · 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

  • Variability in disease severity and social factors makes it challenging to determine the appropriate level of treatment for pediatric cellulitis. 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

  • 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

  • Delayed presentation is common in complicated appendicitis. Limited access to advanced diagnostic modalities is a challenge in resource-limited settings. Systemic healthcare constraints contribute to disease progression prior to timely surgical intervention.

    Complicated versus uncomplicated acute appendicitis: clinical characteristics, diagnostic scores, surgical management, and outcomes in a tertiary hospital in Mogadishu, Somalia · 2026 · DOI

  • The diagnosis of greater omental torsion is often challenging and may be made incidentally during surgery. There is a need for increased awareness of this condition among clinicians.

    Greater Omental Torsion With Reactive Periappendicitis: A Case Report From a Second-Level Care Hospital · 2026 · DOI

  • The optimal management of incidentally discovered appendiceal malignancies, particularly the indication for completion right hemicolectomy, remains debated. There is a lack of standardized guidelines for the management of these neoplasms.

    Management of Incidentally Discovered Appendiceal Malignancies: When to Perform Right Hemicolectomy – Case Series and Literature Review · 2026 · DOI

  • The optimal time‐to‐surgery interval remains debated, as studies reported increased complication risk beyond 12 or 24 hours respectively.

    Associations Between Time‐To‐Surgery and Postoperative Length of Stay and Complications in Patients With Acute Appendicitis · 2026 · DOI

  • The main limitations of our study include its single-cen- ter design, the operator-dependent nature of parameters such as physical examination findings, and the interpre- tation 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 preg- nant populations. An additional limitation relates to the management of patients in the conservative group. Antibiotic exposure was not systematically recorded in the study dataset, and reliable retrospective retrieval of antibiotic use was therefore not possible. The study did not document the indications, timing, or regimens of antibiotic therapy when prescribed. Given the increasing role of antibiotics in the treatment of uncomplicated appendicitis, undoc- umented antibiotic use may alter clinical progression or mask symptoms, which could potentially influence whether a patient was ultimately classified as “AA” or “non-AA”, thereby introducing a source of confounding when comparing the diagnostic performance of the scor- ing systems. Another important limitation is the potential risk of misclassification within the ‘non-AA’ group. Although patients with uncertain diagnoses underwent a standard- ized 4-week clinical follow-up, the sensitivity of US/CT is not absolute, and telephone-based follow-up may not reliably exclude mild, resolving, or antibiotic-treated appendicitis. As a result, a small number of true AA cases may have been inadvertently categorized as non-AA, which could attenuate the measured diagnostic accuracy of the scoring systems.

    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

  • External validation in multi-center cohorts represents the next critical step for clinical implementation47. Integration of additional data sources, such as continuous vital sign monitoring or novel biomarkers, may further enhance predictive accuracy49. Real-time implementation studies will be essential to evaluate clinical impact, workflow integration, and cost-effectiveness. Regarding deployment format, we envisage the Gradient Boosting model being made available as a web-based risk calculator (planned deployment via a dedicated URL) allowing clinicians to enter the eight input variables at the bedside. Prospective real-time implementation studies will be essential to evaluate clinical impact, workflow integration, and cost-effectiveness50. Development of a simplified scoring chart derived from the model, while sacrificing some predictive accuracy, may improve adoption in settings without electronic clinical decision support51. Investigation of optimal intervention strategies for high-risk patients identified by these models represents an important clinical question. Whether enhanced monitoring, alternative antibiotic regimens, or earlier surgical intervention improves outcomes requires prospective evaluation52.

    Building and validating machine learning models to predict appendiceal perforation during conservative treatment of fecalith-associated appendicitis: a 20-algorithm multicenter retrospective analysis · 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

  • Further studies are needed to validate the findings of this study. The study suggests that the MPI can be used to predict mortality and morbidity in patients with perforation peritonitis, but further research is needed to confirm this.

    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 risk of adverse pregnancy outcomes associated with surgical intervention. The non-negligible failure rate of traditional non-operative management strategies. The need for a minimally invasive treatment option that can be safely performed in pregnant patients.

    Case Report: ERAT-based management of appendiceal abscess in early pregnancy · 2026 · DOI

  • Further studies are needed to evaluate the efficacy and safety of ERAT in a larger population of pregnant patients with appendiceal abscess. Comparative analyses of ERAT with other treatment strategies are necessary to determine its relative benefits and risks.

    Case Report: ERAT-based management of appendiceal abscess in early pregnancy · 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

  • 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 etárias

    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 imagem

    AVALIAÇÃO POR IMAGEM E CRITÉRIOS DE DIAGNÓSTICO RADIOLÓGICO NO ABDOME AGUDO · 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 study's methodology may be flawed due to information overlap and multicollinearity. There is a need for careful consideration of these issues in future studies.

    Risk Factors for False-Positive Ultrasound in Pediatric Acute Appendicitis: A Prospective Cohort Study – Correspondence · 2026 · DOI

  • Further analysis, including sensitivity tests, is necessary to validate findings. The impact of pre-admission antibiotics on inflammatory marker performance should be explored.

    Risk Factors for False-Positive Ultrasound in Pediatric Acute Appendicitis: A Prospective Cohort Study – Correspondence-2 · 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 identifies a gap in the current understanding of rare aetiologies of acute abdomen in children. 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

  • 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

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62 open questions have been extracted from the limitations and future-work passages of 327 Appendicitis Diagnosis and Management papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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