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Letter
ARDS outcomes: a marker of critical care quality in the UK?
  1. Matt P Wise1,
  2. Nick Hart2,
  3. Paul J Frost1
  1. 1Adult Critical Care, University Hospital of Wales, Cardiff, UK
  2. 2Lane Fox Respiratory Unit, St Thomas' Hospital, Guy's and St Thomas' NHS Foundation Trust and King's College, London
  1. Correspondence to Dr Matt P Wise, Adult Critical Care, University Hospital of Wales, Cardiff CF14 4XW, UK; mattwise{at}doctors.org.uk

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Finney and colleagues'1 recent editorial discussed the results of the UK-based CESAR trial,2 which investigated extracorporeal membrane oxygenation (ECMO) in severe hypoxic respiratory failure. The editorialists concluded that this trial provided powerful support for the centralisation of care for severe acute respiratory failure (ARF) in a limited number of hospitals, with appropriate expertise and resources, including ECMO. Whilst this may be true, we suggest that CESAR also supports the contention that the provision of critical care services for the management of severe ARF in UK intensive care units requires further detailed auditing.

The CESAR trial's pragmatic design gives an insight into the prevailing standards of care for patients with severe ARF. Although lung protective ventilation3 is a well established, uncontroversial practice, only 30% of the patients in the control group received this modality. It is of concern that 17 of 85 patients arriving alive at the ECMO centre improved with what would be generally recognised as a standard adult respiratory distress syndrome (ARDS) treatment protocol (tidal volume 4–8 ml/kg, plateau pressure <30 cm H2O, FiO2 titration to SaO2 >90%, diuresis to dry weight, packed cell volume of 40%, prone positioning and full nutrition). Significantly 14 (82%) of these individuals survived, suggesting that outcomes in severe ARF in the CESAR trial are a reflection of the quality of the critical care process that is delivered.

In this context it is not unreasonable to question why there is such a disparity in critical care provision within the UK. In Australia and New Zealand critical care medicine has been a speciality for >25 years with a faculty, fellowship and, more recently, a college. Consequently there is less variability in service provision and the delivery of care which is central to clinical governance. This may explain, in part, why outcomes for many aspects of critical care, including ARDS, are better in Australasian centres.4 Unfortunately the UK has fallen behind this model of service delivery and critical care has only been recognised as a speciality since 2002. In the first instance establishing a faculty of critical care medicine would go a long way towards redressing the balance.

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Footnotes

  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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