Altered pharmacological effects of adrenergic agonists during hypothermia
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https://hdl.handle.net/10037/10240Dato
2016-12-05Type
Journal articleTidsskriftartikkel
Peer reviewed
Sammendrag
Rewarming from accidental hypothermia is often complicated by hypothermia-induced cardiac dysfunction, calling
for immediate pharmacologic intervention. Studies show that although cardiac pharmacologic support is applied
when rewarming these patients, a lack of updated treatment recommendations exist. Mainly due to lack of clinical
and experimental data, neither of the international guidelines includes information about pharmacologic cardiac
support at temperatures below 30 °C. However, core temperature of accidental hypothermia patients is often
reduced below 30 °C. Few human studies exploring effects of adrenergic drugs during hypothermia have been
published, and therefore prevailing information is collected from pre-clinical studies. The most prominent finding in
these studies is an apparent depressive effect of adrenaline on cardiac function when used in doses which elevate
cardiac output during normothermia. Also noradrenaline and isoprenaline largely lacked positive cardiac effects
during hypothermia, while dopamine is a more promising drug for supporting cardiac function during rewarming.
Data and information from these studies are in support of the prevailing notion; not to use adrenergic drugs at
core temperatures below 30 °C
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This article is also available via DOI:10.1186/s13049-016-0339-8
This article is also available via DOI:10.1186/s13049-016-0339-8