There is anecdotal evidence (from discussion with physiotherapists at the European Cystic Fibrosis Conference, 2001) that some lung transplant centres are advising their patients to undertake daily (prophylactic) chest physiotherapy as part of their usual routine. They believe that this may compensate for the reduced stimulus to cough caused by the lack of vagal nerve supply to the transplanted lung/s.There is no evidence that this time consuming intervention is of any benefit to the patient in the short or longer term.