Photic sneeze reflex: another variant of the trigeminocardiac reflex?
نویسندگان
چکیده
منابع مشابه
Photic sneeze reflex in nephropathic cystinosis.
Photic induced sneeze is a reflex that occurs in certain individuals after exposure to bright light. Cystinosis is an autosomal recessive inborn error of metabolism in which nonprotein cystine accumulates within lysosomes. The pathognomonic ocular manifestation of cystinosis is corneal crystal deposition. We observed photic induced sneezes during ophthalmoscopic examination in five of 19 patien...
متن کاملThe photic sneeze.
Sneezing once or twice in response to bright light has been observed and described by several authors in the last four decades.'-5 Sedan observed that people sneezed in response to the beam of his ophthalmoscope. He described 6 cases of sneezing in response to ophthalmoscope light, sun, photographic flash and Wood's ultraviolet light.2 Sneezing occurred at the beginning of exposure of the retin...
متن کاملThe Trigeminocardiac Reflex — An Example of Reflexive Heart Rhythm Change
The trigeminocardiac reflex (TCR) is defined as the sudden onset of parasympathetic dysrhythmia, sympathetic hypotension, apnoea or gastric hyper-motility during mechanical/thermal stimulation of any of the sensory branches of the trigeminal nerve. The risk factors that are already known for increasing the prevalence of the TCR include anatomical location, hypercapnia, hypoxemia, light general ...
متن کاملThe clinical surrogate definition of the trigeminocardiac reflex
BACKGROUND The trigeminocardiac reflex (TCR) is defined as sudden onset of parasympathetic dysrhythmias including hemodynamic irregularities, apnea, and gastric hypermotility during stimulation of sensory branches of the trigeminal nerve. Since the first description of the TCR 1999, there is an ongoing discussion about a more flexible than the existing clinical definition. Aim of this work was ...
متن کاملThe trigeminocardiac reflex – a comparison with the diving reflex in humans
The trigeminocardiac reflex (TCR) has previously been described in the literature as a reflexive response of bradycardia, hypotension, and gastric hypermotility seen upon mechanical stimulation in the distribution of the trigeminal nerve. The diving reflex (DR) in humans is characterized by breath-holding, slowing of the heart rate, reduction of limb blood flow and a gradual rise in the mean ar...
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ژورنال
عنوان ژورنال: Future Neurology
سال: 2019
ISSN: 1479-6708,1748-6971
DOI: 10.2217/fnl-2019-0007