1. The overwhelming majority of patients referred into secondary care with suspected head and neck cancer (HNC) do not have cancer (~95%). 2. During the COVID-19 pandemic telephone triage of patients with suspected HNC was necessary. During this time, a validated HNC risk-calculator, HaNC-RC-v2 (a set of symptomatology-based questions) was recommended by ENT UK to stratify patients into high or low risk of having HNC via telephone triage [(1)](#ref-0001) 3. Ufonia, a digital health company which uses an Artificial Intelligence (AI) voice assistant to automate clinical conversations via telephone, and *INSTITUTION*, were awarded an SBRI Healthcare grant to help develop an AI-delivered HNC triage telephone call. This was based on the HaNC-RC-v2 and co-created with HNC patients from the Heads2Gether charity via round-table discussions and one-to-one sessions. 4. Twenty-nine patients underwent a clinician-supervised AI-delivered HNC triage conversation as part of their standard telephone consultation. 100% of calls were completed with an average agreement of 89% between the clinician and the AI system for all symptoms asked. The technology was highly acceptable to patients with a median net promoter score (NPS) score of 8 out of 10. 5. Novel technologies involving AI automated telephone calls can be generated to remotely triage suspected HNC patients. This technology may offer an exciting opportunity to help departments triage suspected HNC referrals in an ever increasingly resource pressurised NHS.

•A 28-month retrospective review from February 2019 to April 2021 of penetrating neck injuries (PNIs) at our trauma centre revealed a 48% (n=25 to n=37) increase in PNIs ‘post-lockdown’ (lockdown date = 23rd March 2020). •The aetiology of PNI changed over time, with an increase in the proportion of Deliberate Self Harm’ (DSH) cases from 1/3 to 2/3rds of case (n=9 to n=25), an overall 177.8% increase ‘post-lockdown’. An increase in mortality was also seen with no deaths ‘pre-lockdown’, and 3 deaths ‘post-lockdown’. •‘Accidental Injuries’ (AI) increased from 4% to 10% of cases (n=1 to n=4) post lockdown, with ‘grievous bodily harm (GBH) reducing from half to 1/5th of all cases (n=13 to n=8), and ‘domestic violence’ from 8% of cases to no cases post lockdown (DV) ‘post lockdown’. •‘Pre-lockdown’ 10% of DSH patients (n=1) were noted to have a prior mental health diagnosis or psychiatric care, ‘post-lockdown’ this increased to 61.5% (n=16) of DSH patients. •Data from our tertiary trauma centre in London has shown a change in aetiology, psychiatric co-morbidity and number of PNIs pre and post lockdown.