Rahul G Kanegaonkar BSc, DLO, FRCS(ORL-HNS) is a Consultant in Otolaryngology at Medway Maritime Hospital, Kent, UK, and Clinical Lead for the Multidisciplinary Balance Clinic at Guy's Hospital, London. James R Tysome MA, PhD, FRCS(ORL-HNS) is a Consultant in Otolaryngology and Skull Base Surgery at Addenbrooke’s Hospital, Cambridge, UK.