Another Possible Reason to Use Prophylactic Phenylephrine Infusions to Reduce Spinal Anesthesia–Associated Hypotension: Do These Patients Stay Warmer?
It is difficult to measure accurate core temperatures in this population, and it is not commonly done. Using the incidence of shivering as a surrogate measure may be problematic. Because skin temperature significantly affects the patient’s response, paradoxically, a colder patient may shiver less.2 It would be interesting to know whether Bishop et al1 were fortunate enough to collect any temperature-related data. Both hypotension and hypothermia result from vasodilation; they are linked. In future studies in this area, cocollection of temperature data, if possible, would be helpful. Demonstrating a thermal benefit would provide another reason to use prophylactic phenylephrine infusions. Hypothermia has multiple adverse consequences and should be avoided.