Some observations on the blink reflex in posttraumatic coma

Rumpl, E.; Gerstenbrand, F; Hackl, J. M.; Prugger, M.

doi:10.1016/0013-4694(82)90204-8

Cited by 20 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The correlation of coma grade and BR changes demonstrated that prognosis is better when R2 is present [14]. A close correlation has been reported between survival and a positive R1 during the first investigation [27], followup recordings having a high predictive value [27,104,113].…”

Section: Blink Reflexmentioning

confidence: 79%

Evoked potentials and brain stem reflexes

Klug¹,

Csécsei

1985

Neurosurg. Rev.

View full text Add to dashboard Cite

The recording of evoked potentials (EPs) has become one of the most useful functional diagnostic techniques in the neurosciences during recent years. In combination with the neurophysiological investigation of brain stem reflexes (BSRs) EPs provide good information concerning circumscribed and diffuse brain and brain stem lesions. In this article the role of EPs and BSRs will be pointed out with special regard to their use in neurosurgery concerning awake and comatose patients as well. Pathological findings caused by extracerebral factors or due to neurological (systemic) and otological diseases will be discussed from the aspect of differential diagnosis only. Evoked potentials described in this paper are short latency potentials which are related to more or less defined generators in the peripheral and central nervous system. EPs of long latency seem to play a role in cognitive, affective and integrative functions of the central nervous system and they will not be dealt with in this article. In recent years an increasing number of review articles and monographs dealing with several aspects of evoked potentials has appeared [16, 17, 18, 25, 69, 80, 84, 122, 123, 124, 127, 130].

show abstract

Section: Blink Reflexmentioning

confidence: 79%

Evoked potentials and brain stem reflexes

Klug¹,

Csécsei

1985

Neurosurg. Rev.

View full text Add to dashboard Cite

show abstract

“…The effects of altered consciousness on the blink reflex have been studied in and coThe effects of ether13 and barbituma*15, [47][48][49] rate13'16 anesthesia have been studied in animals. In a recent study of intraoperative recording of blink reflexes in patients with hemifacial spasm under isoflurane and nitrous oxide anesthesia, it was reported that "the blink reflex cannot normally be elicited during surgical anesthesia using inhalation anesthetic^.…”

Section: Head 81 Neck 11937-1491989mentioning

confidence: 99%

“…The blink reflex has been studied extensively in a variety of central nervous system disorders, in cluding ~t r~k e~,~'~~,~~-~~,~~,~~ brain t~m~r s ,~'~~,~~,~~,~~,~~ multiple sclerosis,19~20~37 and moplegia and delayed R1 response^'^-^^ sug-parkinsonism.2.1 1,2638-43 The reflex has also been used diagnostically in peripheral nerve lesions such as acoustic neuroma3T23,42-44 and Bell's We were interested in the possibility of using the blink reflex as a test of intratemporal facial nerve function immediately after ear surgery, while the patient is still in the operating room and has not yet fully regained consciousness. The effects of altered consciousness on the blink reflex have been studied in and co-The effects of ether13 and barbitu-ma*15, [47][48][49] rate13'16 anesthesia have been studied in animals. In a recent study of intraoperative recording of blink reflexes in patients with hemifacial spasm under isoflurane and nitrous oxide anesthesia, it was reported that "the blink reflex cannot normally be elicited during surgical anesthesia using inhalation anesthetic^.…”

mentioning

confidence: 99%

Effects of general anesthesia on the human blink reflex

Marelli¹,

Hıllel

1989

Head & Neck

View full text Add to dashboard Cite

The blink reflex was studied in 10 patients undergoing elective procedures under general anesthesia. Anesthetic agents were isoflurane, halothane, nitrous oxide, methohexital, and thiopental in various combinations. At induction, blink reflexes were diminished by low-dose thiopental (1-1.5 mg/kg) and abolished by high-dose thiopental (4-8 mg/kg) and methohexital (1.5 mg/kg). Blink reflexes were absent during halogenated volitile inhalational anesthesia and did not return until patients were in the recovery room, well after end-tidal anesthetic levels were zero by mass spectroscopy. Recovery of consciousness and the ability to blink on command often preceded return of any blink reflex activity, indicating that the blink reflex is not useful as a postoperative test of facial nerve function in the operating room after anesthesia. In six patients, blink reflexes were still diminished 2-3 hours after cessation of anesthesia, at a time when patients were fully oriented and corneal and eyelid reflexes were clinically normal. This finding suggests that the blink reflex might be a sensitive test of subtle CNS dysfunction after inhalational anesthesia and potentially could serve as a useful objective indicator of recovery from anesthesia for outpatient surgery.

show abstract

“…A positividade do reflexo de blinking é um sinal favorável para o prognóstico do paciente 3 . Este reflexo não é considerado um reflexo primitivo, ou seja, é um reflexo que somente estará presente ao término da maturação do Sistema Nervoso Central, pois requer um processo cortical de ordem mais alta.…”

Section: Introductionunclassified

Correlação do reflexo de Blinking com o quadro clínico de pacientes neurológicos graves

et al. 2019

View full text Add to dashboard Cite

Objetivo: Este estudo teve como objetivo correlacionar a melhora do nível de consciência e a força da musculatura inspiratória com o aparecimento do reflexo de blinking e demonstrar através destes acontecimentos o valor prognóstico deste reflexo. Método: Participaram do estudo 8 pacientes com faixa etária entre 20 e 82 anos, portadores de patologias neurológicas submetidos à Ventilação Mecânica (VM). Uma vez ao dia em horários fixos, foram avaliados no início do atendimento fisioterapêutico: a consciência através da Escala de Coma de Glasgow (ECG) e Escala de Coma de Jouvet (que inclui o reflexo de blinking) e, após o término do atendimento, a força da musculatura inspiratória através da medida da Pressão Inspiratória máxima (PImáx). Resultados: Pode-se observar que todos os pacientes que apresentaram reflexo de blinking positivo saíram da VM, portanto houve uma correlação direta entre o aparecimento do reflexo de blinking e a retirada da VM, assim como não houve relação direta entre estes acontecimentos e o dia em que o paciente apresentou a maior PImáx com relação ao nível de consciência. Conclusão: Pode-se concluir que o reflexo de blinking é um marcador clínico, fidedigno, prático, não muito utilizado em pacientes em ventilação mecânica invasiva com rebaixamento do nível de consciência, sendo de grande importância para o prognóstico destes pacientes.

show abstract

Some observations on the blink reflex in posttraumatic coma

Cited by 20 publications

References 21 publications

Evoked potentials and brain stem reflexes

Evoked potentials and brain stem reflexes

Effects of general anesthesia on the human blink reflex

Correlação do reflexo de Blinking com o quadro clínico de pacientes neurológicos graves

Contact Info

Product

Resources

About