Question
True about Brewer-Luckhardt reflex include the following except:
| A. |
Associated with ear surgeries
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| B. |
Causes intense pain
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| C. |
Causes laryngospasm
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| D. |
Causes cardiac arrhythmias/tachypnea
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Show Answer
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Correct Answer � A
Explanation
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Brewer- Luckhardt reflex is reflex inspiratory closure while the grunting reflex of Guedel is glottis closure on expiration. Whilst many surgical stimuli trigger vagal reflexes, stimulation of the anus or cervix causes Brewer – Luckhardt reflex.
Anorectal surgery requires deep anaesthesia because the zone gets multiple nerve supply and is reflexogenic.
Operations under light planes of anaesthesia cause intense pain, reflex body movements, tachypnea and laryngeal spasm, the so-called Brewer Luckhardt reflex.
The Brewer-Luckhardt reflex describes laryngospasm that is provoked by a distant stimulus. Vagal reflexes can be attenuated by the use of an anticholinergic such as atropine, but in low doses, it can stimulate the vagus before it blocks (Bezold Jarisch reflex).
Brewer-Luckhardt reflex is characterized by intense pain, reflex body movements, tachypnea, and laryngeal spasm.
