• Leah Imogen Boyle, Alexander Boyle, Sharon Jay, and Jacques Marnewick.
• General Surgical Registrar, Department of General Surgery, Tauranga Hospital, Tauranga.
• N. Z. Med. J. 2020 Nov 20; 133 (1525): 96-105.

AimNew Zealand's stated goal of eradicating COVID-19 included the enforcement of a national lockdown. During this time, a perceived decrease in hospital presentations nationwide was noted. This was also the experience of the Department of General Surgery, Bay of Plenty District Health Board (BOPDHB). We sought to quantify this reduction by analysing the frequency and severity of three common acute general surgical presentations; appendicitis, cholecystitis and diverticulitis.MethodsData on presentations of patients with appendicitis, cholecystitis and diverticulitis were retrospectively collected for the national lockdown period (25 March 2020-27 April 2020) and the immediate pre-lockdown period (21 February 2020-25 March 2020). Data collected included patient demographics, duration of symptoms, method of diagnosis, treatment, severity of disease, length of stay and complications.ResultsA reduction of 62.2% was noted in the frequency of appendicitis during the lockdown period compared to the pre-lockdown period. Patients presented later during lockdown and had a higher complication rate (5.4% versus 42.8%). Similarly, a 39.2% reduction in presentations of cholecystitis during lockdown was found. The lockdown group of patients had a longer length of stay (6.9 versus 4 days) and only one patient (9.1%, 1/11) was managed with laparoscopic cholecystectomy during the lockdown period, compared to 52.9% of patients (9/17) over the pre-lockdown period. No difference in frequency or severity of acute diverticulitis presentations between the two periods was found.ConclusionsThe COVID-19 lockdown led to fewer presentations, but these were often delayed, with more complications and a longer length of stay. This could be partly explained by patient fear around exposure to the virus and reluctance to attend hospital. More research is needed to study the flow-on effects of the COVID-19 lockdown on surgical presentations.

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