This paper heralds a series entitled The Future of ORL-HNS and Associated Specialties which the Journal will run through each issue of the year 2000.

Recent developments in our understanding of prion diseases have raised concerns for the public health. There is now compelling evidence that the transmissible agent for variant Creutzfeldt-Jakob disease (vCJD) in affected individuals is accumulated in lymphoreticular tissues such as the appendix and tonsils. This agent demonstrates a remarkable resistance to standard methods of sterilisation used in hospital sterile services departments. The possible implications this has on the safety of surgical instruments in ENT and other surgical practice is discussed. This review also outlines the history of our understanding of prion diseases and describes the development of a diagnostic test for vCJD in the living patient by pharyngeal tonsil biopsy.

Otitis media with effusion is almost universal in children with cleft palate and can delay speech, language and educational development by causing hearing loss. Grommet insertion at the time of cleft palate repair is common. There is debate about whether the benefits of grommets outweigh the risk of complications. A postal questionnaire was used to investigate parental perceptions of middle-ear ventilation via grommet insertion in children attending the multidisciplinary cleft palate clinic. These children's case notes were reviewed. Many children had speech and language delay, but parents thought this improved after grommet insertion. Overall parents were pleased with the results. This confirms that grommets have an important part to play in the management of children with cleft palate.

Day surgery is increasing to improve the efficient use of NHS resources and it is vital that the quality of patient care is not compromised. The Audit Commission has recommended that there should be a systematic appraisal of the patient's views to monitor quality of day care. A survey of parental satisfaction with paediatric day-case surgery provides valuable information for those providing day surgery. A specific area of dissatisfaction previously identified is inadequate pain control following discharge. It is also suggested that day surgery may incur higher costs for the general practitioner.

A retrospective study to investigate parental satisfaction with 100 paediatric otorhinolaryngology cases was performed. This study found 96 per cent of parents were happy with the treatment their child received, 89 per cent were satisfied with self-administered simple analgesia and no patients visited their general practitioner on the day following surgery. It is concluded that with careful selection and adequate support the degree of satisfaction with day surgery is high for a wide variety of procedures.

The aim of the study was to review the literature of tympanoscierosis especially its pathogenesis, to study the general incidence of tympanoscierosis among patients with chronic suppurative otitis media (CSOM), its association with cholesteatoma and also the type of hearing loss as well as its relation to the degree and site of tympanosclerosis.

Seven hundred and seventy-five patients with CSOM were studied retrospectively. A full history was taken and thorough ENT examinations were carried out. Pure tone audiograms (PTA) of all patients were done and analysed. The operative finding of tympanosclerosis as well as middle-ear status were inspected.

The incidence of tympanosclerosis was found to be 11.6 per cent (90 patients out of 775 CSOM cases). Most tympanosclerosis cases had dry ear, (85.6 per cent). Of the 57.8 per cent who had myringosclerosis, their PTA showed an AB gap 20–40 dB. When sclerosis affect both the tympanic membrane and middle ear, 61 per cent of patients had an AB gap >40 dB. The association of cholesteatoma and tympanosclerosis may be regarded as uncommon, 2.2 per cent.

The exact aetiology and pathogenesis of tympanosclerosis is as yet not well known. Our study concentrated on the clinical picture of tympanosclerosis among patients with CSOM. The majority of hearing loss associated with tympanosclerosis was of the conductive type.

Acute mastoiditis in children remains an otological problem. Although the widespread use of antibiotics has reduced the need for surgical intervention, surgery is frequently used in the treatment of acute mastoiditis and its complications. The charts of 44 patients hospitalized with signs of acute mastoiditis were reviewed. In 43.2 per cent of all patients, acute mastoiditis was the presenting sign of acute middle-ear infection. Post-auricular erythema and protrusion of the auricle were the most frequent signs at presentation. All four signs (post-auricular erythema, oedema, tenderness, and protrusion of the auricle) were present in 40.9 per cent of patients. No bacterial pathogen was isolated in 45.5 per cent of ear cultures. Complicated acute mastoiditis was diagnosed in 13.7 per cent of the patients. Eighty-seven per cent of patients responded well to intravenous antibiotics and myringotomy, and in 11.4 per cent mastoidectomy or abscess drainage were performed. We conclude that nearly all patients with uncomplicated mastoiditis recover following intravenous antibiotics and myringotomy. Mastoidectomy should be perfonned in selected cases, such as cases of complicated acute mastoiditis.

Abstract Epistaxis remains the most common ENT emergency. The use of coagulation studies in Scotland to manage these patients was investigated to determine current practice. The study took the form of a postal questionnaire sent to all practising ENT consultants and a telephone survey of ENT senior house officers working in Scotland. Of the 60 questionnaires circulated amongst consultants, 55 responses were received (92 per cent). Thirty-eight consultants (70 per cent) indicated that they did not routinely request a coagulation screen for their patients, however, 30 per cent (16) did. Forty-three of the 45 junior staff were available for interview, 22 (51 per cent) of whom routinely requested coagulation studies. While the majority of consultants did not request routine coagulation studies, there did not appear to be any consensus among the junior staff. Although there is a paucity of scientific information with regard to this aspect of epistaxis patient management, there is support in the literature for targeted rather than blanket testing. There is perhaps a need to address this issue within individual departments, to achieve uniformity of practice, and to improve communication between junior and senior staff.

Adenotonsillectomy and tonsillectomy are amongst the most commonly performed surgical procedures. In our prospective study we looked at early post-operative morbidity (haemorrhage, vomiting and pyrexia) in 521 consecutive children following tonsillectomy, adenotonsillectomy and adenoidectomy. While the incidence of reactionary haemorrhage is low, pyrexia and vomiting are common. The implications of this high early post-operative morbidity for day surgery are discussed.

Oral rinses/gargles and oral sprays are frequently used in the management of oropharyngeal inflammation. This pictorial study, using methylene blue dye as a marker of the distribution of these topical preparations in the oropharynx, suggests that oral sprays are more effective in coating the oropharynx than oral rinses, whilst oral rinses are better at staining the oral cavity and base of tongue. The authors therefore suggest that oral rinses should be used to treat disease in the oral cavity and oral sprays should be used to treat ailments in the oropharynx.

We present a case of a 63-year-old diabetic male who developed malignant otitis externa following mastoidectomy. Extensive skull base osteomyelitis caused thrombosis of the jugular bulb and subsequent paralysis of cranial nerves VII, IX, X and XII. Hewas treated aggressively with intravenous antibiotics and debridement of granulation tissue in the mastoid bowl with full recovery of the cranial nerve palsies associated with recanalization of the jugular bulb. We believe this is the first reported case of malignant otitis externa to occur following mastoidectomy with complete recovery of the cranial nerve paresis.

Langerhans' cell histiocytosis is a rare disorder of unknown aetiology in which pathological Langerhans' cells accumulate and destroy local tissue. We report a 38-year-old female who presented with a sudden onset of left sensormeural hearing loss. Magnetic resonance imaging (MRI) revealed a contrast-enhancing lesion in the left mastoid and a second lesion in the hypothalamus. Following left mastoid exploration and biopsy a definitive diagnosis of Langerhans' cell histiocytosis was made and the patient was treated with external beam radiotherapy. Subsequent right femur and right mastoid involvement were successfully treated with steroids and cytotoxic chemotherapy. At one year follow-up the patient had residual left-sided sensorineural hearing loss with normal hearing in the right ear. To our knowledge, Langerhans' cell histiocytosis has not been previously reported as a cause of unilateral sudden onset sensorineural hearing loss. It should be considered in the differential diagnosis of this condition.

Meningiomas account for approximately 18 to 19 per cent of all brain tumours. Although they can arise in numerous locations, meningiomas of the internal auditory canal (IAC) are rare. Most tumours that originate in the IAC are schwannomas of the Vilith cranial nerve (acoustic neuromas). We report a case of a meningioma which appears to originate from the IAC and extends into the vestibule. The clinical findings and the radiographical features of meningiomas of the IAC are similar to those of acoustic neuromas. Pre-operative differentiation between acoustic neuromas and meningiomas of the IAC may be difficult.

We present two cases of alar haematoma. This is a very rare complication of nasal trauma, and only two cases have been described previously. One case presented late and did not undergo surgical drainage and has a persistent cosmetic deformity. We recommend early surgical drainage when possible.

A rare case of compartmentalized maxillary sinus mucocele 12 years after a Caidwell-Luc operation is reported. The two separate mucoceles were drained intranasally by endoscopic sinus surgery. The clinical features of this mucocele are presented and the incidence, presentation and theories on formation of post-operative mucoceles are reviewed.

Three cases of pituitary adenomas with infra-sellar extension into the nasopharynx and the nasal cavities are reported. The clinical signs were epistaxis, nasal obstruction, painful sinuses and purulent rhinorrhoea. The initial diagnostic hypothesis was that of a carcinoma of the nasopharynx or the sinuses in all three cases. The diagnosis was made by histological examination and measurement of plasma hormone levels. These cases highlight the difficulty in the diagnosis of such tumours due to their misleading clinical, radiological and histological features.

We describe a patient with trigeminal neunnoma whose main presenting symptom was trismus. This has not previously been reported in the literature. We review the previously described symptoms and signs of trigeminal neurinoma.

We present a rare presentation of myasthenia gravis as acute inspiratory stridor in a 16-year-old girl. Prompt diagnosis and medical treatment avoided the need for tracheostomy. Although an uncommon cause, myasthenia gravis should be included in the differential daignosis of stridor.

A 76-year-old patient had an elective percutaneous dilatational tracheostomy (PDT) under endoscopic control in the intensive care unit. Twelve days later when her general condition improved, two attempts at decannulation failed due to upper airway obstruction above the tracheostomy site.

Bronchoscopy showed herniation of the anterior tracheal wall above the tracheostomy tube occluding 80 per cent of the lumen. The herniated anterior segment was elevated and partially resected under endoscopic guidance. The patient made a full recovery and was decannulated on the first post-operative day. Pitfalls and possible complications of PDT are discussed.

A patient who developed non-cardiogenic pulmonary oedema secondary to acute airway obstruction caused by an aspirated foreign body is presented. The literature is reviewed, discussing the theories regarding the formation of non-cardiogenic pulmonary oedema. The case highlights the importance of this rare complication of foreign body aspiration and surgeons and anaesthetists should be alert to continued respiratory symptoms following relief of acute airway obstruction.