Abstract
Introduction
Globally, healthcare systems face rising costs, inefficiencies, and inequitable resource allocation. In Nigeria, underfunding and systemic inefficiencies limit access to surgical care, preventing many patients from receiving necessary procedures. Operating theatres (OTs), which are among the most resource-intensive hospital units, are central to improving surgical care but are often underutilised. Auditing OT processes is essential for identifying inefficiencies and supporting strategies to enhance utilisation and reduce cancellations.
Purpose
This study aimed to evaluate OT time utilisation and surgical case cancellations in a Nigerian teaching hospital over one month, focusing on first-case tardiness, prediction bias, turnover time, and cancellations.
Methods
A prospective cross-sectional study was conducted to analyse observational data from OT processes, including first-case tardiness, prediction bias, turnover time, cancellations, and raw utilisation. Hierarchical multiple regression was used to assess the predictive impact of these factors on OT utilisation.
Results
Out of 133 scheduled surgeries, 59 (44.4%) were cancelled. The leading causes of cancellation were patient non-attendance (33.9%) and time constraints (27.1%). Raw OT utilisation was 55.4%, with general surgery recording the highest utilisation (81.5%). First-case tardiness (mean delay: 133.7 ± 46.4 minutes) and prediction bias (mean: 49.9 ± 44.3 minutes) significantly predicted OT utilisation (B = -0.219, p = 0.007; B = 0.305, p = 0.005, respectively). Delayed starts accounted for 5,886 minutes of lost time.
Conclusions
Addressing patient non-attendance through financial counselling and automated reminders, standardising workflows, and enhancing scheduling accuracy with digital tools can reduce delays and cancellations, thereby optimising resource use.
References
Arcidiacono, G., Wang, J., & Yang, K. (2015). Operating room adjusted utilization study. International Journal of Lean Six Sigma, 6(2), 111–137. https://doi.org/10.1108/ijlss-02-2014-0005
Asmal, I. I., Keerath, K., & Cronjé, L. (2019). An audit of operating theatre utilisation and day-of-surgery cancellations at a regional hospital in the Durban metropole. South African Medical Journal, 109(10), 765. https://doi.org/10.7196/samj.2019.v109i10.13815
Charlesworth, M., & Pandit, J. J. (2020). Rational performance metrics for operating theatres, principles of efficiency, and how to achieve it. British Journal of Surgery, 107(2), e63–e69. https://doi.org/10.1002/bjs.11396
Colvin, J. R., & Peden, C. J. (2012). Raising the standard: A compendium of audit recipes for continuous quality improvement in anaesthesia. Royal College of Anaesthetists. https://www.rcoa.ac.uk/sites/default/files/documents/2019-09/CSQ-ARB-2012_0.pdf
Crew, N., & Venter, S. (2024). Towards improved theatre efficiency: A study of procedural times for common elective surgical procedures at Tygerberg Hospital. Southern African Journal of Anaesthesia and Analgesia, 30(2), 38–44. https://doi.org/10.36303/sajaa.3056
Dawka, S. (2016). The emergence of surgery as a major force in the public health arena. Archives of Medical and Biomedical Research, 3(1), 24. https://doi.org/10.4314/ambr.v3i1.4
Development Research and Projects Centre (dRPC). (2024). Analysis of the Federal Government of Nigeria 2024 Health Budget Proposal. Development Research and Projects Centre (dRPC). https://drpcngr.org/wp-content/uploads/2023/12/Analysis-of-the-2024-Health-Budget-Proposal-by-the-Federal-Government-of-Nigeria-dRPC.pdf
Elrahman, A. A. (2014, March 15). Cancellation of elective general surgical operations at the day of intended surgery. Global Journal of Medical Research. https://medicalresearchjournal.org/index.php/GJMR/article/view/676
Faiz, O., Tekkis, P., McGuire, A., Papagrigoriadis, S., Rennie, J., & Leather, A. (2008). Is theatre utilization a valid performance indicator for NHS operating theatres? BMC Health Services Research, 8(1). https://doi.org/10.1186/1472-6963-8-28
Fatungase, O., Sogebi, O., Nwokoro, C., & Oyelekan, A. (2016). An audit of the Day-of-Surgery Cancellation of scheduled surgical procedures in Sagamu, Nigeria. Annals of Health Research, 2(2), 72–78. https://mail.annalsofhealthresearch.com/index.php/ahr/article/view/43/27
Firde, M., Ayine, B., Mekete, G., Sisay, A., & Yetneberk, T. (2024). Root causes of first-case start time delays for elective surgical procedures: A prospective multicenter observational cohort study in Ethiopia. Patient Safety in Surgery, 18(1). https://doi.org/10.1186/s13037-024-00405-z
Ford, S., Brink, N., Martin, N., Soares, S., Manicom, B., Mahadea, T., Reynolds, M., Grieve, A., Loveland, J., & Gabler, T. (2021). Utilisation of paediatric surgical theatres at the Chris Hani Baragwanath Academic Hospital, Johannesburg. South African Journal of Child Health, 15(4), 185–188. https://doi.org/10.7196/sajch.2021.v15i4.1774
Hartmann, D., & Sunjka, B. (2013). Private theatre utilisation in South Africa: A case study. South African Medical Journal, 103(5), 285. https://doi.org/10.7196/samj.6460
Jesuyajolu, D. A., Okeke, C., Obi, C., & Nicholas, A. (2022). Access to quality surgical care in Nigeria: A narrative review of the challenges, and the way forward. Surgery in Practice and Science, 9, 100070. https://doi.org/10.1016/j.sipas.2022.100070
Koushan, M., Wood, L. C., & Greatbanks, R. (2021). Evaluating factors associated with the cancellation and delay of elective surgical procedures: A systematic review. International Journal for Quality in Health Care, 33(2). https://doi.org/10.1093/intqhc/mzab092
Meara, J. G., & Greenberg, S. L. (2015). The Lancet Commission on Global Surgery: Global surgery 2030: Evidence and solutions for achieving health, welfare, and economic development. Surgery, 157(5), 834–835. https://doi.org/10.1016/j.surg.2015.02.009
Moutlana, H. (2021). Theatre efficiency. South African Journal of Anaesthesia and Analgesia, 27(6 Suppl1), S182–S185. https://www.sajaa.co.za/index.php/sajaa/article/view/2737/3084
Naik, S., Dhulkhed, V., & Shinde, R. (2018). A prospective study on operation theater utilization time and most common causes of delays and cancellations of scheduled surgeries in a 1000-bedded tertiary care rural hospital with a view to optimize the utilization of operation theater. Anesthesia Essays and Researches, 12(4), 797. https://doi.org/10.4103/aer.aer_132_18
Negash, S., Anberber, E., Ayele, B., Ashebir, Z., Abate, A., Bitew, S., Derbew, M., Weiser, T. G., Starr, N., & Mammo, T. N. (2022). Operating room efficiency in a low-resource setting: A pilot study from a large tertiary referral center in Ethiopia. Patient Safety in Surgery, 16(1). https://doi.org/10.1186/s13037-021-00314-5
Okeke, C., Okorie, C., Ojewola, R., Omoke, N., Obi, A., Egwu, A., & Onyebum, O. (2020a). Delay of surgery start time: Experience in a Nigerian teaching hospital. Nigerian Journal of Surgery, 26(2), 110. https://doi.org/10.4103/njs.njs_61_19
Okeke, C. J., Obi, A. O., Tijani, K. H., Eni, U. E., & Okorie, C. O. (2020b). Cancellation of elective surgical cases in a nigerian teaching hospital: Frequency and reasons. Nigerian Journal of Clinical Practice, 23(7), 965. https://doi.org/10.4103/njcp.njcp_650_19
Olajide, G., Aremu, S., Olajide, T., Adegbiji, W., Raji, M., & Ali, A. (2018). Reasons for cancellation of surgeries in a Nigerian tertiary hospital. Paripex-Indian Journal of Research, 7(2), 551–554.
Olomu, B. O., & Babcock University, Ilishan Remo, Department of Political Science and Public Administration. (2019). A critical appraisal on population explosion and poverty in Nigeria. International Journal of Latest Research in Humanities and Social Science (IJLRHSS), 2(6), 48–55. http://www.ijlrhss.com/paper/volume-2-issue-6/7-HSS-381.pdf
Pandit, J. J., Abbott, T., Pandit, M., Kapila, A., & Abraham, R. (2012). Is ‘starting on time’ useful (or useless) as a surrogate measure for ‘surgical theatre efficiency’? Anaesthesia, 67(8), 823–832. https://doi.org/10.1111/j.1365-2044.2012.07160.x
Queensland Audit Office. (2015). Queensland public hospital operating theatre efficiency: Volume One. https://documents.parliament.qld.gov.au/TableOffice/TabledPapers/2016/5516T451.pdf
Takai, I., Gajida, A., & Nuhu, Y. (2016). Cancellations of elective surgical procedures performed at a teaching hospital in North-West Nigeria. Journal of Medicine in the Tropics, 18(2), 108. https://doi.org/10.4103/2276-7096.192244
The Royal College of Anaesthetists. (2024). Guidelines for the Provision of Anaesthetic Services (GPAS). https://www.rcoa.ac.uk/
Tsimanyane, M., Koetsie, K., & Makgotloe, A. (2023). Operating theatre efficiency at a tertiary eye hospital in South Africa. South African Medical Journal, 113(5), 59–64. https://doi.org/10.7196/samj.2023.v113i5.16602

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