UK national survey of thoracic ultrasound in respiratory registrars.

Thoracic ultrasound training has become part of the respiratory medicine curriculum. Data on training, access to teaching and achievement of competency in thoracic ultrasound by respiratory specialty trainees are scarce. Using the web-based kwiksurveys, we surveyed current respiratory specialty trainees (STs) in the UK. 177 responses were recorded. Nearly three-quarters of trainees had access to bedside ultrasound but only 15.3% had regular ultrasound training. Overall, 28.8% had achieved level 1 competency but only 44.4% of trainees at ST6 and above were level 1 competent. The majority of respiratory trainees have access to thoracic ultrasound but structured training is limited, with only a small proportion of trainees attaining level 1. More structured training and mentoring is needed to enable trainees to achieve the required competencies.

The effect of adiposity measured by dual-energy X-ray absorptiometry on lung function.

Respiratory function is impaired in obesity but there are limitations with body mass index and skin-fold thickness in assessing this effect. The present authors hypothesised that the regional distribution of body fat and lean mass, as measured by dual-energy X-ray absorptiometry (DXA), might be more informative than conventional measurements of total body fat. In total, 107 subjects (55 female, 51.4%) aged 20-50 yrs with no respiratory disease were recruited. Respiratory function tests, anthropometric measurements and a DXA scan were performed. Partial correlation and linear regression analyses were used to explore the effect of adiposity and lean body mass on respiratory function. The majority of respiratory function parameters were significantly correlated with DXA and non-DXA measurements of body fat. Neither thoracic nor abdominal fat had a greater effect. There were some differences in the effect of adiposity between the sexes. Respiratory function was negatively associated with lean body mass in females but positively associated in males. This disappeared after adjustment in females but remained in males. The effects of thoracic and abdominal body fat on respiratory function are comparable but cannot be separated from one another.