Transcranial Doppler ultrasonography with jugular vein compression can detect impairment of intracranial compliance

Paschoal, Fernando Mendes; Bor-Seng-Shu, Edson; Teixeira, Manoel Jacobsen

doi:10.1016/j.clineuro.2012.09.028

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…murmur near the mass is rare, but may be a sign of carotid artery compression [2,3]. It is well known that compression maneuvers of the ICA and jugular vein, as well as carotid surgical procedures, can induce TCDcerebral hemodynamic changes, evidenced by changes in the spectral waveforms of CBFV and pulsatility index, as described in the literature [3][4][5]. TCD result from our patient suggests compression of PGL against the ICA and/or jugular vein.…”

mentioning

confidence: 61%

Neck paraganglioma: Head rotation maneuver on transcranial Doppler ultrasonography

Paschoal

Rogério

et al. 2015

Clinical Neurology and Neurosurgery

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mentioning

confidence: 61%

Neck paraganglioma: Head rotation maneuver on transcranial Doppler ultrasonography

Paschoal

Rogério

et al. 2015

Clinical Neurology and Neurosurgery

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“…Under normal conditions, this maneuver causes a slight increase in brain blood volume and ICP augmentation. In patients with reduced intracranial compliance, venous compression would cause PI elevation and reduction of mean brain blood flow velocities [67] leptomeningeal arteries during acute arterial occlusion. Still in the acute phase, the detection of emboli by TCD in the region of the occluded artery may be indicative of recanalization of this arterial segment.…”

Section: Intracranial Hypertensionmentioning

confidence: 99%

Management of Patients with Brain Injury Using Noninvasive Methods

Frigieri¹,

Rabelo²,

Nogueira³

et al. 2021

Advancement and New Understanding in Brain Injury

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In the last decades, the development of new noninvasive technologies in critical care allowed physicians to continuously monitor clinical parameters, aggregating important information that has been previously inaccessible or restricted due to the invasiveness of the existing techniques. The aim of this chapter is to present noninvasive methods in use on intensive care units (ICU) for brain injured patients monitoring, collaborating to the diagnosis and follow-up, aiding medical teams to achieve better outcomes.

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“…When net forward flow is seriously reduced, severe ischemic brain damage or brain death may occur. In critical IH, the intracranial waveform degrades to become a small systolic spike and then disappears altogether [44] . The relationship between TCDhemodynamic patterns and the different states of ICP reinforces the idea that TCD can be useful for determining the optimal range of arterial blood pressure for adequate cerebral blood flow dynamics in FHF patients [45,46] .…”

Section: Cerebral Blood Flow Monitoringmentioning

confidence: 99%

Multimodal brain monitoring in fulminant hepatic failure

Paschoal¹,

Nogueira²,

Ronconi³

et al. 2016

WJH

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Acute liver failure, also known as fulminant hepatic failure (FHF), embraces a spectrum of clinical entities characterized by acute liver injury, severe hepatocellular dysfunction, and hepatic encephalopathy. Cerebral edema and intracranial hypertension are common causes of mortality in patients with FHF. The management of patients who present acute liver failure starts with determining the cause and an initial evaluation of prognosis. Regardless of whether or not patients are listed for liver transplantation, they should still be monitored for recovery, death, or transplantation. In the past, neuromonitoring was restricted to serial clinical neurologic examination and, in some cases, intracranial pressure monitoring. Over the years, this monitoring has proven insufficient, as brain abnormalities were detected at late and irreversible stages. The need for real-time monitoring of brain functions to favor prompt treatment and avert irreversible brain injuries led to the concepts of multimodal monitoring and neurophysiological decision support. New monitoring techniques, such as brain tissue oxygen tension, continuous electroencephalogram, transcranial Doppler, and cerebral microdialysis, have been developed. These techniques enable early diagnosis of brain hemodynamic, electrical, and biochemical changes, allow brain anatomical and physiological monitoring-guided therapy, and have improved patient survival rates. The purpose of this review is to discuss the multimodality methods available for monitoring patients with FHF in the neurocritical care setting.

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Transcranial Doppler ultrasonography with jugular vein compression can detect impairment of intracranial compliance

Cited by 4 publications

References 7 publications

Neck paraganglioma: Head rotation maneuver on transcranial Doppler ultrasonography

Neck paraganglioma: Head rotation maneuver on transcranial Doppler ultrasonography

Management of Patients with Brain Injury Using Noninvasive Methods

Multimodal brain monitoring in fulminant hepatic failure

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