- Joined
- Sep 18, 2006
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One stupid study w a n 20 done in 04' (who of us even own cars that old?)showed an 20% increase in mac volatile anesthetics.... and now everyone who is a ginger, or miss informed dolt propagates this myth!!! If one of my crnas or old partners say this one more time I (being a ginger) say give me the same damn dose of prop/sevo as everyone else and play music if I can name even one song after waking up I'll give you 100k cash...
A later study by the same researchers in 2013 found absolutely no difference in IV anaesthetic requirements for red-haired females. The study concluded: “Anecdotal impressions among anaesthesiologists that propofol [a common IV anaesthetic] requirements are increased in redheads thus seem unsubstantiated”.
In addition, a larger study performed by Australian researchers in 2012 examined 468 adult patients undergoing surgery and general anaesthesia and, contrary to prior findings, showed that patients with red hair had no higher anaesthesia drug requirements than patients with black or brown hair.
They concluded: “We found no evidence that redheads had increased anaesthetic requirement or faster speed of recovery after surgery. Nor was there any evidence of a difference in pain response, pain intensity, or other adverse effects after anaesthesia and surgery…we could find no evidence that a patient’s natural hair colour meaningfully affects anaesthetic requirement”.
Ref
Anthony G. Doufas, MD, PhD, Mukadder Orhan-Sungur, MD, Ryu Komatsu, MD. Bispectral Index Dynamics During Propofol Hypnosis Is Similar in Red-Haired and Dark-Haired Subjects. Anesth Analg 2013;116:319–26
PS Myles, FF Buchanan, et.al. The effect of hair colour on anaesthetic requirements and
recovery time after surgery. Anaesth Intensive Care 2012; 40:683-689
A later study by the same researchers in 2013 found absolutely no difference in IV anaesthetic requirements for red-haired females. The study concluded: “Anecdotal impressions among anaesthesiologists that propofol [a common IV anaesthetic] requirements are increased in redheads thus seem unsubstantiated”.
In addition, a larger study performed by Australian researchers in 2012 examined 468 adult patients undergoing surgery and general anaesthesia and, contrary to prior findings, showed that patients with red hair had no higher anaesthesia drug requirements than patients with black or brown hair.
They concluded: “We found no evidence that redheads had increased anaesthetic requirement or faster speed of recovery after surgery. Nor was there any evidence of a difference in pain response, pain intensity, or other adverse effects after anaesthesia and surgery…we could find no evidence that a patient’s natural hair colour meaningfully affects anaesthetic requirement”.
Ref
Anthony G. Doufas, MD, PhD, Mukadder Orhan-Sungur, MD, Ryu Komatsu, MD. Bispectral Index Dynamics During Propofol Hypnosis Is Similar in Red-Haired and Dark-Haired Subjects. Anesth Analg 2013;116:319–26
PS Myles, FF Buchanan, et.al. The effect of hair colour on anaesthetic requirements and
recovery time after surgery. Anaesth Intensive Care 2012; 40:683-689
.
