Waveform Morphology as a Surrogate for ICP Monitoring: A Comparison Between an Invasive and a Noninvasive Method

Moraes, Fabiano Moulin de; Rocha, Eva; Barros, Felipe Chaves Duarte; Freitas, Flávio Geraldo Rezende; Miranda, Munique; Valiente, Raul Alberto; Andrade, João Brainer Clares de; Neto, Feres Eduardo Aparecido Chaddad; Silva, Gisele Sampaio

doi:10.1007/s12028-022-01477-4

Cited by 45 publications

(41 citation statements)

References 34 publications

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“…Although there is no study evaluating specifically its use in patients with TAC, our survey showed a common recommendation of the method, what could be explained by the several papers published in the last ten years showing the validation and effectiveness of the method. [22][23][24][25][26][27] About treatment, only 27% of the participants of our survey indicate surgery for a patient with asymptomatic TAC. However, when the relationship between symptoms and TAC was established, more than 2/3 choose the surgical treatment.…”

Section: Discussionmentioning

confidence: 89%

Current practices in temporal arachnoid cysts: a survey among Brazilian neurosurgeons

Mansilla¹,

Protzenko

Pousa³

et al. 2022

Arch Pediat Neurosurg

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Introduction: There has been no consensus for the best treatment strategy for TACs. The aim of this survey was to aggroup the different practices between Brazilian pediatric neurosurgeons in the management of a children with TAC Galassi Type II and III. Methods: contributors answered a case questionnaire about TACs and select the answer that better reflect their conduct in asymptomatic or symptomatic patients (chronic headache, epilepsy and psychomotor retardation). Results: all respondents confessed that had doubts about TACs and 59-75% was not satisfied only with brain MRI. Fundoscopy was the most required exam (28-35%), followed by EEG/VideoEEG (19-20%), ICP-NI (16%) and MRI CSF flowmetry (12-13%). For asymptomatic, 61-85% suggested follow-up with clinical, radiologic and fundoscopic control. Still, surgery was the choice for 61-70% in symptomatic patients. The preferred technique for TAC type II was endoscopic cysto-cisternostomy (32%) and for type III craniotomy and arachnoid cyst marsupialization (25%). Discussion: Since the past 14 years, more information has become available about the natural history of TACs and innovative technologies arises for its management helps. Treatment is still debated, but endoscopy is increasingly common and proved to be safe and effective. Conclusion: modern technologies allow more security and subsidies to treatment chosen and even though for TAC Galassi type III open craniotomy still is preferred than endoscopic surgery, nowadays the least invasive treatment have been the choice for TAC Galassi Type II. The years of experience in endoscopy and the more availability of the tool into hospitals maybe contributed to this pattern change.

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Section: Discussionmentioning

confidence: 89%

Current practices in temporal arachnoid cysts: a survey among Brazilian neurosurgeons

Mansilla¹,

Protzenko

Pousa³

et al. 2022

Arch Pediat Neurosurg

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“…Hypotension episodes occurred, and the device captured the values of 1.49 concerning P2/P1 relationship and TTP of 0.283, both indirect values suggestive of intracranial hypertension (Brasil, et al, 2021), (Moraes et al, 2022). Due to the anisocoria, decompressive craniotomy and hematoma drainage were indicated without intercurrences during the procedure.…”

Section: Casementioning

confidence: 99%

“…The device consists of an electrical resistance strain gauge (sensor) capable of capturing bone micro deformations resulting from ICP variation. The technology has already been validated with the invasive sensor (Brasil, et al, 2021) (Moraes et al, 2022) and has already received marketing authorization in Brazil (ANVISA) and in the USA (FDA). This noninvasive ICP monitoring (niICP) analysis the ICP waveform morphology.…”

Section: Introductionmentioning

confidence: 99%

Noninvasive intracranial pressure in patients with traumatic brain injury

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Botelho

Dhaese

et al. 2022

RSD

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Monitoring and treatment of intracranial pressure are extremely important procedures in the management of patients with traumatic brain injury. The monitoring methods currently marketed are invasive and are not suitable for all patients. In addition to the risks offered, they are not available on all services. This study aims to describe the cases of five patients with traumatic brain injury of different severity who underwent noninvasive monitoring of intracranial pressure in the acute phase of the injury, relating the changes identified with the clinical picture presented. Patients showed important changes in intracranial pressure wave morphology, possibly related to the lesions, clinical presentation and therapeutic interventions used.

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“…Recently, the development of a non-invasive system to evaluate the ICPW (nICPW) allowed assessing the behavior of ICPW beyond the neurointensive care environment. This method has clinically [9,13,14] and experimentally [15,16] demonstrated a high correlation with its invasive predicate, reproducing the same pulse shape profile and extracting numerical parameters from its different peaks amplitudes.…”

Section: Introductionmentioning

confidence: 95%

Qualitative Evaluation of Intracranial Pressure Slopes in Patients Undergoing Brain Death Protocol

Ideta¹,

Oliveira²,

Gonçalves³

et al. 2023

Preprint

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Background: Due to the importance of brain death (BD) diagnostic do not mistake, reliable confirmatory exams should be performed to enhance its security. This study aims to evaluate the intracranial pressure (ICP) pulse morphology behavior in brain-dead patients through a noninvasive monitoring system. Methods: A pilot case-control study was conducted in adults that met the BD national protocol criteria. Quantitative data from the ICP waveforms were extracted and analyzed comparing BD patients and health subjects. Results: Fifteen patients were included. ICP waveforms presented substantial differences amidst BD patients when compared to the control group. Moreover, pulse amplitude and time to peak variables values in the case group were also statistically significant. Conclusions: In this exploratory study, noninvasive ICP waveforms have shown potential as a screening method in patients with suspected brain death. Future studies should be carried out in a larger population.

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Waveform Morphology as a Surrogate for ICP Monitoring: A Comparison Between an Invasive and a Noninvasive Method

Cited by 45 publications

References 34 publications

Current practices in temporal arachnoid cysts: a survey among Brazilian neurosurgeons

Current practices in temporal arachnoid cysts: a survey among Brazilian neurosurgeons

Noninvasive intracranial pressure in patients with traumatic brain injury

Qualitative Evaluation of Intracranial Pressure Slopes in Patients Undergoing Brain Death Protocol

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