It is vital, as with any other compensation or technique to view the effects of carbonated beverages. They use Ginger Brew, Club Soda or carbonated citrus. One of the important issues to consider when looking at research involving carbonated beverages is that the researchers in these studies do not use Coke, Pepsi or Sprite. It is likely that sour and carbonated beverages reflect a more organized activation of the submental muscles because of more effective afferent input to the Nucleus Tractus Solitarius. (Newman et al).ĭrinks containing chemical ingredients that activate sour and heat receptors alter swallowing physiology greater than water. (Saravou & Walshe).Ĭarbonated thin liquid significantly decreased the incidence of spillover, delayed pharyngeal response and laryngeal penetration compared to non-carbonated thin liquids. Carbonated beverages sis however decrease penetration/aspiration with 5 & 10 ml swallows. No significant effect on oral transit time, pharyngeal transit time, initiation of pharyngeal swallow or pharyngeal retention. Sensory input (afferent drive) drives the motoric output (efferent drive). Rather than acting as a nectar thick liquid, the carbonated beverage actually increases the sensory stimulation for the swallow. The Trigeminal Nerve has bare nerve endings making it more susceptible to sensory or afferent input. The Trigeminal Nerve or Cranial Nerve V is one of the major swallowing nerves. It’s effective through a process called chemesthesis, where the “bubbly” or “fizzy” of the carbonated beverage acts as a Trigeminal irritant. One of the common misconceptions at this time is that carbonated beverages act as a nectar thick liquid.Ĭarbonation is a sensory option for dysphagia rehabilitation. Part of the sensory process is carbonated beverages. Much of the recent dysphagia research has focused on the sensory portion of the swallow and how sensory drives the swallowing process. For some reason, at one point in time, the research was translated to substitution of carbonated beverages, including soda to replace nectar thick liquids.Ĭarbonated beverages have hit the dysphagia world by storm. When patients have dysphagia, often sensory techniques, including carbonation can help increase aspects of the swallow.
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