Impact of COVID-19 Pandemic on Hepatopancreatobiliary Surgical Services in Singapore

Study Overview
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Brief Summary
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This paper is intended to report our observational study in evaluating the impact of the COVID-19 pandemic on Tan Tock Seng Hospital hepatopancreatobiliary unit's surgical workload from January to June across 2019 to 2022, corresponding to the pre-pandemic baseline to its peak and the gradual normalization of hospital services as Singapore entered the transition phase to COVID-19 resilience.

Detailed Description
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This paper is intended to report our observational study in evaluating the impact of the COVID-19 pandemic on Tan Tock Seng Hospital hepatopancreatobiliary unit's surgical workload from January to June across 2019 to 2022, corresponding to the pre-pandemic baseline to its peak and the gradual normalization of hospital services as Singapore entered the transition phase to COVID-19 resilience. A comparative audit of the unit's surgical workload for the months of January-June across 2019 to 2022, which corresponded to pre-COVID-19, the height of the pandemic, and a gradual normalization of surgical services. Operations performed by the unit were collected from the surgeons' electronic case logs. These operations were sorted based on the Singapore Ministry of Health's table of surgical procedures, which assigns charge codes to different procedures. The retrospective data across the 4 years were compared and analysed. No patient contact or identifiers were retrieved, stored or disseminated and thus exempt from ethics board review.

Official Title
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Before and After- Impact of COVID-19 Pandemic on Hepatobiliary and Pancreatic Surgical Services in Singapore: Retrospective Quantitative Study 2019-2022

Conditions
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COVID-19, Surgery

Intervention / Treatment
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* Other: COVID-19 pandemic


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: all patients who underwent gallbladder, hernia, liver or pancreas resection surgeries during the periods of January to June of 2019/2020/2021/2022. Exclusion Criteria: anyone who does not fall within the inclusion criteria

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 120 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| 2019<br>No intervention will be carried out. The sum total of surgeries carried out during 2019 will be audited to see how the COVID-19 pandemic has impacted the surgical volume. | Other: COVID-19 pandemic<br>* To retrospectively review the surgical volume across 2019-2022 to see the impact of the COVID-19 pandemic.<br>|
| 2020<br>No intervention will be carried out. The sum total of surgeries carried out during 2020 will be audited to see how the COVID-19 pandemic has impacted the surgical volume. | Other: COVID-19 pandemic<br>* To retrospectively review the surgical volume across 2019-2022 to see the impact of the COVID-19 pandemic.<br>|
| 2021<br>No intervention will be carried out. The sum total of surgeries carried out during 2021 will be audited to see how the COVID-19 pandemic has impacted the surgical volume. | Other: COVID-19 pandemic<br>* To retrospectively review the surgical volume across 2019-2022 to see the impact of the COVID-19 pandemic.<br>|
| 2022<br>No intervention will be carried out. The sum total of surgeries carried out during 2022 will be audited to see how the COVID-19 pandemic has impacted the surgical volume. | Other: COVID-19 pandemic<br>* To retrospectively review the surgical volume across 2019-2022 to see the impact of the COVID-19 pandemic.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of surgeries done under general anaesthesia by the hepatopancreatobiliary unit | Operations performed by the unit will be collected from the surgeons' electronic case logs. These operations will be sorted based on the Singapore Ministry of Health's table of surgical procedures, which assigns charge codes to different procedures. The retrospective data across the 4 years will be compared and analysed. | 2019-2022 |