Can intracranial pressure be measured non-invasively bedside using a two-depth Doppler-technique?
Measurement of intracranial pressure (ICP) is necessary in many neurological and neurosurgical diseases. To avoid lumbar puncture or intracranial ICP probes, non-invasive ICP techniques are becoming popular. A recently developed technology uses two-depth Doppler to compare arterial pulsations in the...
| Publicado en: | Journal of Clinical Monitoring & Computing Vol. 31; no. 2; pp. 459 - 468 |
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| Autores principales: | , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Springer Nature
Apr2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=121743091&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 121743091 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13871307 OHC jtl: Journal of Clinical Monitoring & Computing issn: 13871307 maglogo: N pubinfo: dt: Apr2017 vid: 31 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 121743091 121743091 NLM26971794 121743091 10.1007/s10877-016-9862-4 NLM26971794 121743091 ppf: 459 ppct: 9 formats: fmt: @attributes: type: P tig: atl: Can intracranial pressure be measured non-invasively bedside using a two-depth Doppler-technique? aug: au: Koskinen, Lars-Owe Malm, Jan Zakelis, Rolandas Bartusis, Laimonas Ragauskas, Arminas Eklund, Anders Koskinen, Lars-Owe D affil: Department of Clinical Neuroscience, Neurosurgery and Neurology , Umeå University , Umeå 90185 Sweden sug: subj: Intracranial Pressure Hydrocephalus, Normal Pressure Ultrasonography, Doppler Methods Ophthalmic Artery Ultrasonography, Doppler, Transcranial Methods Aged, 80 and Over Intracranial Hypertension Blood Pressure Hydrocephalus, Normal Pressure Physiopathology Reference Values Aged Linear Regression Female Reproducibility of Results Monitoring, Physiologic Methods Male Human Aged, 80 & over Aged: 65+ years Female Male ab: Measurement of intracranial pressure (ICP) is necessary in many neurological and neurosurgical diseases. To avoid lumbar puncture or intracranial ICP probes, non-invasive ICP techniques are becoming popular. A recently developed technology uses two-depth Doppler to compare arterial pulsations in the intra- and extra-cranial segments of the ophthalmic artery for non-invasive estimation of ICP. The aim of this study was to investigate how well non-invasively-measured ICP and invasively-measured cerebrospinal fluid (CSF) pressure correlate. We performed multiple measurements over a wide ICP span in eighteen elderly patients with communicating hydrocephalus. As a reference, an automatic CSF infusion apparatus was connected to the lumbar space. Ringer's solution was used to create elevation to pre-defined ICP levels. Bench tests of the infusion apparatus showed a random error (95 % CI) of less than ±0.9 mmHg and a systematic error of less than ±0.5 mmHg. Reliable Doppler signals were obtained in 13 (72 %) patients. An infusion test could not be performed in one patient. Thus, twelve patients and a total of 61 paired data points were studied. The correlation between invasive and non-invasive ICP measurements was good (R = 0.74), and the 95 % limits of agreements were -1.4 ± 8.8 mmHg. The within-patient correlation varied between 0.47 and 1.00. This non-invasive technique is promising, and these results encourage further development and evaluation before the method can be recommended for use in clinical practice. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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