Evidence for necrotising otitis externa (NOE) diagnosis and management is limited, and outcome reporting is heterogeneous. International best practice guidelines were used to develop consensus diagnostic criteria and a core outcome set (COS).

The study was pre-registered on the Core Outcome Measures in Effectiveness Trials (COMET) database. Systematic literature review identified candidate items. Patient-centred items were identified via a qualitative study. Items and their definitions were refined by multidisciplinary stakeholders in a two-round Delphi exercise and subsequent consensus meeting.

The final COS incorporates 36 items within 12 themes: Signs and symptoms; Pain; Advanced Disease Indicators; Complications; Survival; Antibiotic regimes and side effects; Patient comorbidities; Non-antibiotic treatments; Patient compliance; Duration and cessation of treatment; Relapse and readmission; Multidisciplinary team management.

Consensus diagnostic criteria include 12 items within 6 themes: Signs and symptoms (oedema, otorrhoea, granulation); Pain (otalgia, nocturnal otalgia); Investigations (microbiology [does not have to be positive], histology [malignancy excluded], positive CT and MRI); Persistent symptoms despite local and/or systemic treatment for at least two weeks; At least one risk factor for impaired immune response; Indicators of advanced disease (not obligatory but mut be reported when present at diagnosis). Stakeholders were unanimous that there is no role for secondary, graded, or optional diagnostic items. The consensus meeting identified themes for future research.

The adoption of consensus-defined diagnostic criteria and COS facilitates standardised research reporting and robust data synthesis. Inclusion of patient and professional perspectives ensures best practice stakeholder engagement.

Non-fatal strangulation as a consequence of a sexual assault attack or domestic violence represents serious bodily harm. Otolaryngologists have an important role in documenting physical findings and managing airway symptoms. This study aimed to describe our otolaryngology department's experience managing patients referred from the sexual assault referral centre who suffered non-fatal strangulation.

A retrospective analysis of patients suffering non-fatal strangulation referred to the Manchester University Hospitals NHS Foundation Trust Otolaryngology Department from Saint Mary's Sexual Assault Referral Centre in Manchester between 1 January 2017 and 31 December 2019 was carried out.

A total of 86 patients were referred from Saint Mary's Sexual Assault Referral Centre. Of these patients, 56 were given telephone advice and the remaining 30 were seen by the on-call otolaryngology team. In addition, 20 out of 30 (66.6 per cent) patients underwent fibre-optic nasal endoscopy. Common presenting symptoms were neck pain (81.4 per cent), dyspnoea (80.2 per cent) and dizziness (72.1 per cent). Five patients had identifiable laryngeal injury on endoscopy.

Meticulous documentation is recommended when managing patients who suffer non-fatal strangulation because medical records may be used as evidence in criminal investigations.