The pupilometer determines the alteration of the pupil diameter after a defined light stimulus. In this study data is collected from pupilometer measurements of patients with an acute cerebral disease. The measurements take place during daily neurological routine examinations. The values are compared to outcomes resulting from pupilometer measurements done on patients having not an acute cerebral disease (e.g. cerebral aneurysm without symptoms). The study aims to establish the not invasive method of pupillometry for detecting neurological degradations early.
The pupilometer determines the alteration of the pupil diameter after a defined light stimulus providing information of the autonomic nerve system. The result collecting from pupillometry is objective and more precise than the subjective-visual evaluation of the pupil and its reactivity. In this observational study data is collected from pupilometer measurements of patients with an acute cerebral disease. The measurements take place during neurological routine examinations. The first measurement is done during the initial diagnosing examination, followed by daily measurements and ending with measurements after 3 and 6 month upon hospital discharge. The values are compared to standard values resulting from pupilometer measurements done on patients having non-acute cerebral disease (e.g. cerebral aneurysm without symptoms). The study aims to establish the not invasive method of pupillometry for detecting neurological degradations early.
Study Type
OBSERVATIONAL
Enrollment
300
Device to measure change in pupil diameter due to a defined light stimulus.
Uniklinik RWTH Aachen
Aachen, North Rhine-Westphalia, Germany
RECRUITINGNumber of delayed cerebral ischemia (DCI)
DCI is defined as the development of new focal neurological signs and/or deterioration in level of consciousness, lasting for more than 1 h, or the appearance of new infarctions on CT or MRI.
Time frame: 21 days
Number of perfusion deficiency
Time frame: 21 days
Transcranial Doppler (TCD) -fluency increase [cm/s]
\> 150 cm/s absolute or increase \> 50 cm/s within 24 h
Time frame: 21 days
Digital subtraction angiography (DSA)
Detection of an angiographic vasospasm
Time frame: day 7 ± 2 d
Glasgow Outcome Score (GOS)
Standardized and objective description of the degree of recovery of patients suffered from a cerebral disease.
Time frame: after 3 and 6 month
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