Cholesteatoma is a non-neoplastic, keratinising lesion which has two forms: congenital and acquired. Congenital cholesteatoma develops behind a normal, intact tympanic membrane, whilst acquired cholesteatoma is associated with a defect in the tympanic membrane. The pathological substrate of cholesteatoma is keratinising stratified squamous epithelium, but the origin of this epidermal tissue in the middle ear is controversial. Here, we review the most relevant and recent evidence for the principal aetiopathogenic theories of both forms of cholesteatoma, in the light of recent otopathological findings. Congenital cholesteatoma is most plausibly explained by the persistence of fetal epidermoid formation. Conclusive 'proof' awaits the unambiguous demonstration of the metamorphosis of an epidermoid nidus into a lesion in vivo. Acquired cholesteatoma may develop by various mechanisms: immigration, basal hyperplasia, retraction pocket and/or trauma (iatrogenic or non-iatrogenic). However, squamous metaplasia of the normal cuboidal epithelium of the middle ear is a highly unlikely explanation. Chronic inflammation seems to play a fundamental role in multiple aetiopathogenic mechanisms of acquired cholesteatoma. Therefore early treatment of inflammatory conditions might reduce their sequelae, perhaps by preventing the development of hyperplastic papillary protrusions. Continued otopathological, cellular and molecular research would enhance our limited understanding of cholesteatoma and may lead to new therapeutic strategies for this erosive disease, which often defies surgical treatment.

In all cancer specialities, there has been much debate about the best follow-up regime. The provision of a service that meets high standards whilst being cost-effective is increasingly pertinent. The objectives of the study were to examine: whether routine follow-up facilitates early diagnosis and recurrence; whether there is a cohort of patients who require a more intensive follow-up regime; whether follow-up should be customised to individual patients. A total of 1,039 consecutive outpatient consultations were prospectively analysed in a multicentre study. All adult patients who had undergone multidisciplinary, multimodality management for head and neck cancer were included. The case mix was representative of all head and neck tumour sites and stages. Suspicion of recurrence was noted in 10% (n = 96/951) of patients seen routinely. This rose to 68% (n = 60/88) for the subset of patients who had requested an appointment. Most recurrences were found within the first follow-up year (n = 64/156, 54%). Only 0.3% (n = 3/1,039) of asymptomatic patients attending routine appointments were suspected of having a recurrence, and two (0.2%) were found to have an actual recurrence following investigation. Of the total number of patients reporting a new suspicious symptom, recurrence was suspected in 56% (n = 152/270). Patients thus had a 98.1% sensitivity to raising suspicion for a recurrence based on the reporting of new symptoms with a 99.6% negative predictive value. Our data show that the efficiency of the current follow-up regime at detecting suspected recurrence of head and neck cancer is low, suggesting the need for a customised, more focused follow-up regime, tailored to individual cases. Patient education and close relationships with clinicians and allied health-care professionals are essential for early diagnosis and management of cancer recurrence. Follow-up regimes within the first year should be most intensive as recurrence is most likely within this time, and it serves to alleviate patient anxiety in the early post-treatment period. More research needs to be carried out to investigate the role of patient self-reporting and surveillance of cancer recurrence.

The use of CAM is high among nurses. As patients are increasingly relying on nurses for advice on its use, it is important for nurses to be educated about CAM in order to guide their patients.

These data suggest the need for a more patient-focused, individualised approach to follow-up in head and neck cancer.

Objective: Symptoms, including tinnitus, ear pain and vertigo, have been reported following exposure to wind turbine noise. This review addresses the effects of infrasound and low frequency noise and questions the existence of 'wind turbine syndrome'.Design: This review is based on a search for articles published within the last 10 years, conducted using the PubMed database and Google Scholar search engine, which included in their title or abstract the terms 'wind turbine', 'infrasound' or 'low frequency noise'.Results: There is evidence that infrasound has a physiological effect on the ear. Until this effect is fully understood, it is impossible to conclude that wind turbine noise does not cause any of the symptoms described. However, many believe that these symptoms are related largely to the stress caused by unwanted noise exposure.Conclusion: There is some evidence of symptoms in patients exposed to wind turbine noise. The effects of infrasound require further investigation.

Examination of the available literature supports the notion that therapeutic mastoidectomy does not lend any additional benefit to the management of noncholesteatomatous chronic otitis media. This has implications for patient care, both clinically and financially. Further research, ideally in the form of a prospective, multi-institutional, geographically wide, ethnically diverse, randomized controlled trial, is needed to further support this notion.

A cross-sectional study was conducted in four rural communities of northeastern Trinidad to determine the microbial quality of water supply to households and that quality's relationship to source and storage device. Of the 167 household water samples tested, total coliforms were detected in 132 of the samples (79.0%), fecal coliforms in 102 (61.1%), and E. coli in 111 (66.5%). There were significant differences among the towns in the proportion of the samples contaminated with coliforms (P < 0.001) and E. coli (P < 0.001). Of 253 strains of E. coli studied, 4 (1.6%) were mucoid, 9 (3.6%) were hemolytic, and 37 (14.6%) were nonsorbitol fermenters. Of 69 isolates of E. coli tested, 10 (14.5%) were verocytotoxigenic. Twenty-eight (14.0%) of 200 E. coli isolates tested belonged to enteropathogenic serogroups. Standpipe, the most common water source, was utilized by 57 (34.1%) of the 167 households. Treated water (pipeborne in homes, standpipes, or truckborne) was supplied to 119 households (71.3%), while 48 households (28.7%) used water from untreated sources (rain, river/stream, or well) as their primary water supply. The type of household storage device was associated with coliform contamination. Water stored in drums, barrels, or buckets was more likely to harbor fecal coliforms (74.2% of samples) than was water stored in tanks (53.3% of samples), even after controlling for water source (P = 0.04). Compared with water from other sources, water piped into homes was significantly less likely to be contaminated with total coliforms (56.9% versus 88.8%, P < 0.001) and fecal coliforms (41.2% versus 69.8%, P < 0.01), even when the type of storage device was taken into account. However, fecal contamination was not associated with whether the water came from a treated or untreated source. We concluded that the drinking water in rural communities in Trinidad was grossly unfit for human consumption, due both to contamination of various water sources and during household water storage.

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