• R S Bourne, S J Webber, and S P Hutchinson.
• Intensive Care Unit, Royal Hallamshire Hospital, Glossop Road, Sheffield, S10 2JF, United Kingdom. richard.bourne@sth.nhs.uk
• Anaesthesia. 2003 Jun 1; 58 (6): 591-6.

AbstractRecently, there has been renewed interest in corticosteroid therapy for patients with septic shock. The cortisol response to a tetracosactide stimulation test, otherwise known as a short synacthen test, may identify which patients are most likely to benefit from corticosteroid replacement. Controversy over interpretation of the cortisol response and the correct tetracosactide dose remains. We retrospectively analysed all septic shock patients who had full cortisol results following a 1- micro g short synacthen test. All cortisol results were re-evaluated by three common ways of interpreting the cortisol response to a short synacthen test. The thresholds were a cortisol rise >/= 250 nmol x l(-1), a peak cortisol >/= 550 nmol x l(-1) and a peak cortisol >/= 700 nmol x l(-1). We found a significant relationship between the peak cortisol results and haemodynamic improvement in patients given corticosteroids. There was no association between a cortisol rise >/= 250 nmol x l(-1) and haemodynamic improvement after corticosteroids. A postal questionnaire was sent to adult intensive care units in the United Kingdom to assess national practice. Sixty per cent of intensive care units use corticosteroids in septic shock patients, but only 22% use a short synacthen test to guide therapy.

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