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Research Paper| Volume 26, ISSUE 1, P13-23, March 2023

Air ambulance retrievals of patients with suspected appendicitis and acute abdominal pain: The patients’ journeys, referral pathways and appendectomy outcomes using linked data in Central Queensland, Australia

      Abstract

      Introduction

      Acute appendicitis is the most common cause of acute abdominal pain presentations to the ED and common air ambulance transfer. Aims: describe how linked data can be used to explore patients’ journeys, referral pathways and request-to-activation responsiveness of patients’ appendectomy outcomes (minor vs major complexity).

      Methods

      Data sources were linked: aeromedical, hospital and death. Request-to-activation intervals showed strong right-tailed skewness. Quantile regression examined whether the longest request-to-activation intervals were associated with appendicitis complexity in patients who underwent an appendectomy.

      Results

      There were 684 patients in three referral pathways based on hospital capability levels. In total, 5.6 % patients were discharged from ED. 83.3 % of all rural origins entered via the ED. 3.8 % of appendicitis patients were triaged to tertiary hospitals. Appendectomy patients with major complexity outcomes were less likely to have longer request-to-activation wait times & had longer lengths of stay than patients with minor complexity outcomes.

      Conclusions

      Linked data highlighted four aspects of a functioning referral system: appendectomy outcomes of major complexity were less likely to have longer request-to-activation intervals compared to minor (sicker patients were identified); few were discharged from EDs (validated transfer); few were triaged to tertiary hospitals (appropriate level for need), and no deaths relating to appendectomy.

      Keywords

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      References

        • Madore J.C.
        • Collins C.E.
        • Ayturk M.D.
        • Santry H.P.
        The impact of acute care surgery on appendicitis outcomes: results from a national sample of university-affiliated hospitals.
        J Trauma Acute Care Surg. 2015; 79: 282-288https://doi.org/10.1097/TA.0000000000000732
        • Di Saverio S.
        • Podda M.
        • De Simone B.
        • et al.
        Diagnosis and treatment of acute appendicitis: 2020 update of the WSES Jerusalem guidelines.
        World J Emerg Surg. 2020; 15: 27https://doi.org/10.1186/s13017-020-00306-3
      1. Edwards KH, Franklin RC, Jones R, Kuhnert PM, Khanna S. Exploring the air ambulance patients' journey outcomes in Central Queensland, Australia. Manuscript under review.

        • Scott J.W.
        • Olufajo O.A.
        • Brat G.A.
        • et al.
        Use of national burden to define operative emergency general surgery.
        JAMA Surg. 2016; 151 (e160480-e160480)https://doi.org/10.1001/jamasurg.2016.0480
        • Allen L.
        • Vogt K.
        • Joos E.
        • et al.
        Impact of interhospital transfer on patient outcomes in emergency general surgery.
        Surgery. 2021; 169: 455-459https://doi.org/10.1016/j.surg.2020.08.032
        • Becher R.D.
        • Sukumar N.
        • DeWane M.P.
        • et al.
        Regionalization of emergency general surgery operations: a simulation study.
        J Trauma Acute Care Surg. 2020; 88: 366-371https://doi.org/10.1097/TA.0000000000002543
        • Teng C.Y.
        • Davis B.S.
        • Kahn J.M.
        • Rosengart M.R.
        • Brown J.B.
        Factors associated with potentially avoidable interhospital transfers in emergency general surgery-a call for quality improvement efforts.
        Surgery. 2021; 170: 1298-1307https://doi.org/10.1016/j.surg.2021.05.021
        • Taylor C.B.
        • Stevenson M.
        • Jan S.
        • et al.
        An investigation into the cost, coverage and activities of Helicopter Emergency Medical Services in the state of New South Wales, Australia.
        Injury. 2011; 42: 1088-1094https://doi.org/10.1016/j.injury.2011.02.013
        • Bertazzoni G.
        • Cristofani M.
        • Ponzanetti A.
        • et al.
        Scant justification for interhospital transfers: a cause of reduced efficiency in the emergency department.
        Emerg Med J. 2008; 25: 558-561https://doi.org/10.1136/emj.2007.052415
        • Sorensen M.J.
        • von Recklinghausen F.M.
        • Fulton G.
        • Burchard K.W.
        Secondary overtriage: the burden of unnecessary interfacility transfers in a rural trauma system.
        JAMA Surg. 2013; 148: 763-768
        • Ross M.J.
        • Liu H.
        • Netherton S.J.
        • et al.
        Outcomes of children with suspected appendicitis and incompletely visualized appendix on ultrasound.
        Acad Emerg Med. 2014; 21: 538-542https://doi.org/10.1111/acem.12377
        • Naiditch J.A.
        • Lautz T.B.
        • Daley S.
        • Pierce M.C.
        • Reynolds M.
        • Sinert R.
        The implications of missed opportunities to diagnose appendicitis in children.
        Acad Emerg Med. 2013; 20: 592-596https://doi.org/10.1111/acem.12144
        • Jones R.E.
        • Gee K.M.
        • Preston S.C.
        • Babb J.L.
        • Beres A.L.
        Diagnostic utilization and accuracy of pediatric appendicitis imaging at adult and pediatric centers.
        J Surg Res. 2019; 240: 97-103https://doi.org/10.1016/j.jss.2019.02.047
      2. Parliament of Australia. Availability and accessibility of diagnostic imaging equipment around Australia; 2018, 9 March. Senate Standing Committees on Community Affairs. 〈https://www.aph.gov.au/Parliamentary_Business/Committees/Senate/Community_Affairs/Diagnosticimaging/Report〉 [Accessed 12 March 2021].

      3. Queensland Health. Protocol for management of inter-hospital transfers; 2021. 〈https://www.health.qld.gov.au/__data/assets/pdf_file/0023/1115357/qh-hsdptl-025-2.pdf〉 [Accessed 1 December 2021].

        • Medford-Davis L.N.
        • Holena D.N.
        • Karp D.
        • Kallan M.J.
        • Delgado M.K.
        Which transfers can we avoid: multi-state analysis of factors associated with discharge home without procedure after ED to ED transfer for traumatic injury.
        Am J Emerg Med. 2018; 36: 797-803https://doi.org/10.1016/j.ajem.2017.10.024
        • Walls T.A.
        • Chamberlain J.M.
        • Klein B.L.
        Factors associated with emergency department discharge after pediatric interhospital transport: a role for outreach education.
        Pedia Emerg Care. 2015; 31: 10-14https://doi.org/10.1097/pec.0000000000000326
        • Santry H.
        • Kao L.S.
        • Shafi S.
        • Lottenberg L.
        • Crandall M.
        Pro-con debate on regionalization of emergency general surgery: controversy or common sense?.
        Trauma Surg Acute Care Open. 2019; 4e000319https://doi.org/10.1136/tsaco-2019-000319
        • Limmer A.M.
        • Edye M.B.
        Interhospital transfer delays emergency abdominal surgery and prolongs stay.
        ANZ J Surg. 2017; 87: 867-872https://doi.org/10.1111/ans.13824
        • Edwards K.H.
        • Franklin R.C.
        • Aitken P.
        • Elcock M.
        • Edwards M.T.
        A program profile of air medical transport in regional central Queensland, Australia.
        Air Med J. 2019; 38: 431-436https://doi.org/10.1016/j.amj.2019.09.003
        • Franklin R.K.J.
        • Aitken P.J.
        • Elcock M.S.
        • Lawton L.
        • Robertson A.
        • Mazur S.M.
        • et al.
        Aeromedical retrievals in Queensland: a five-year review.
        Emerg Med Austral. 2020; 33 (34-33)https://doi.org/10.1111/1742-6723.13559
      4. Queensland Health. Central Queensland hospital and health service annual report 2012–13; 2013. 〈https://www.health.qld.gov.au/cq/annual-report-2012–13/docs/cqhhs-annual-report-web.pdf〉 [Accessed 9 January 2020].

      5. Australian Institute of Health and Welfare. Emergency department ICD-10-AM (10th ed.) principal diagnosis short list code. 〈https://meteor.aihw.gov.au/content/index.phtml/itemId/640980/meteorItemView/long〉 [Accessed 4 April 2020].

      6. Australian Institute of Health and Welfare. Australian refined diagnosis-related groups. Accessed 5 April 2020. 〈https://www.aihw.gov.au/reports/hospitals/ar-drg-data-cubes/contents/data-cubes〉.

      7. American Hospital Association. ICD-10-CM Official Guidelines for Coding and Reporting FY 2016, Sections II.H and III.C. Coding Clinic; 2005:21. [Accessed 5 April 2020].

      8. American College of Physicians. More crucial coding for clinicians; November 2016. 〈https://acphospitalist.org/archives/2016/11/coding-rules-clinicians.htm〉 [Accessed 5 April 2020].

        • Vandenbroucke J.P.
        • von Elm E.
        • Altman D.G.
        • et al.
        Strengthening the reporting of observational studies in epidemiology (STROBE): explanation and elaboration.
        Epidemiology. 2007; 18: 805-835https://doi.org/10.1097/EDE.0b013e3181577511
      9. Cohen J. A power primer. Vol. 112; 1992. p. 155–159. 〈http://www.bwgriffin.com/workshop/Sampling %20A %20Cohen %20tables.pdf〉 [Accessed 13 November 2021].

        • Ko R.E.
        • Park S.J.
        • Kim H.S.
        Relationship between the time required for transfer and outcomes in patients with appendicitis: experience at a tertiary military hospital in South Korea.
        Medicine. 2019; 98e17715https://doi.org/10.1097/md.0000000000017715
        • França U.L.
        • McManus M.L.
        Outcomes of hospital transfers for pediatric abdominal pain and appendicitis.
        JAMA Netw Open. 2018; 1 (e183249-e183249)https://doi.org/10.1001/jamanetworkopen.2018.3249
        • Blok G.
        • Veenstra L.M.M.
        • van der Lei J.
        • Berger M.Y.
        • Holtman G.A.
        Appendicitis in children with acute abdominal pain in primary care, a retrospective cohort study.
        Fam Pract. 2021; 38: 758-765https://doi.org/10.1093/fampra/cmab039
        • Elrod J.K.
        • Fortenberry J.L.
        The hub-and-spoke organization design revisited: a lifeline for rural hospitals.
        BMC Health Serv Res. 2017; 17: 795https://doi.org/10.1186/s12913-017-2755-5
        • Harwood A.
        • Black S.
        • Sharma P.
        • Bishop L.
        • Gardiner F.W.
        Aeromedical retrieval for suspected appendicitis in rural and remote paediatric patients.
        Australas J Ultrasound Med. 2020; 23: 47-51https://doi.org/10.1002/ajum.12198
        • Prada-Arias M.
        • Gómez-Veiras J.
        • Vázquez J.L.
        • Salgado-Barreira Á.
        • Montero-Sánchez M.
        • Fernández-Lorenzo J.R.
        Appendicitis or non-specific abdominal pain in pre-school children: When to request abdominal ultrasound?.
        J Paediatr Child Health. 2020; 56: 367-371https://doi.org/10.1111/jpc.14617
        • Bhangu A.
        • Søreide K.
        • Di Saverio S.
        • Assarsson J.H.
        • Drake F.T.
        Acute appendicitis: modern understanding of pathogenesis, diagnosis, and management.
        Lancet. 26 2015; 386: 1278-1287https://doi.org/10.1016/s0140-6736(15)00275-5
        • Grewal K.
        • Wijeysundera D.N.
        • Carroll J.
        • Tait G.
        • Beattie W.S.
        Gender differences in mortality following non-cardiovascular surgery: an observational study.
        Can J Anaesth. 2012; 59: 255-262https://doi.org/10.1007/s12630-011-9629-9
        • Newgard C.D.
        In reply.
        Ann Emerg Med. 2011; 57: 74-75https://doi.org/10.1016/j.annemergmed.2010.08.004
        • Nouraei S.A.
        • Virk J.S.
        • Hudovsky A.
        • Wathen C.
        • Darzi A.
        • Parsons D.
        Accuracy of clinician-clinical coder information handover following acute medical admissions: implication for using administrative datasets in clinical outcomes management.
        J Public Health. 2016; 38: 352-362https://doi.org/10.1093/pubmed/fdv041
      10. Queensland Health. QHAPDC Standard; 2020. 〈https://www.health.qld.gov.au/__data/assets/pdf_file/0023/1013468/Clinical-Coding-Standard_March-2020_v0.1.pdf〉 [Accessed 22 November 2021].