Journal ArticleDOI
Ocular color-coded sonography - a promising tool for neurologists and intensive care physicians.
Michael Ertl,F. Barinka,Elisabeth Torka,M. Altmann,Karin Pfister,Horst Helbig,Ulrich Bogdahn,M.-A. Gamulescu,Felix Schlachetzki +8 more
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TLDR
The technique and main parameter settings of OCCS systems to reduce potential risks as thermal or cavitational effects for sensitive orbital structures are described and perspectives are illustrated that combine established ultrasound methods such as transcranial color-coded sonography with O CCS.Abstract:
Ocular color-coded duplex sonography (OCCS), when performed within the safety limits of diagnostic ultrasonography, is an easy noninvasive technique with high potential for diagnosis and therapy in diseases with raised intracranial pressure and vascular diseases affecting the eye. Despite the capabilities of modern ultrasound systems and its scientific validation, OCCS has not gained widespread use in neurological practice. In this review, the authors describe the technique and main parameter settings of OCCS systems to reduce potential risks as thermal or cavitational effects for sensitive orbital structures. Applications of OCCS are the determination of intracranial pressure in emergency medicine, and follow-up evaluations of idiopathic intracranial hypertension and ventricular shunting by measuring the optic nerve sheath diameter. A diameter of 5.7 – 6.0 mm corresponds well with symptomatically increased intracranial pressure (> 20 cmH2O). OCCS also helps to discriminate between different etiologies of central retinal artery occlusion – by visualization of a “spot sign” and Doppler flow analysis of the central retinal artery – and aids the differential diagnosis of papilledema. At the end perspectives are illustrated that combine established ultrasound methods such as transcranial color-coded sonography with OCCS.read more
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Journal ArticleDOI
Ultrasonography Assessments of Optic Nerve Sheath Diameter as a Noninvasive and Dynamic Method of Detecting Changes in Intracranial Pressure.
TL;DR: Ultrasonographic ONSD measurements may be a useful, noninvasive tool for dynamically evaluating ICP and the dilated ONSDs decreased along with the elevated ICP reduction.
Journal ArticleDOI
Optic nerve sheath diameter: present and future perspectives for neurologists and critical care physicians.
Piergiorgio Lochner,Marek Czosnyka,Andrea Naldi,Epameinondas Lyros,Paolo Pelosi,Shrey Mathur,Klaus Fassbender,Chiara Robba +7 more
TL;DR: The technique and the novel approach of ONSD measurement, the clinical applications of OnSD in neurology and critical care patients, and the safe and low-cost bedside tool ONSD in the prehospital setting are discussed.
Journal ArticleDOI
Management of spontaneous intracranial hypotension - Transorbital ultrasound as discriminator.
Jens Fichtner,Christian T. Ulrich,Christian Fung,Christin Knüppel,Martina Veitweber,Astrid Jilch,Philippe Schucht,Michael Ertl,Beate Schömig,Jan Gralla,Werner J. Z’Graggen,Corrado Bernasconi,Heinrich Mattle,Felix Schlachetzki,Andreas Raabe,Jürgen Beck +15 more
TL;DR: Symptomatic patients with SIH showed a significant decrease of ONSD, as assessed by ultrasound, when changing from the supine to the upright position, suggesting that ultrasound assessment of the ONSD in two positions may be a novel, non-invasive tool for the diagnosis and follow-up of SIH and for elucidating the pathophysiology ofSIH.
Journal ArticleDOI
Changes in intraocular pressure and optic nerve sheath diameter in patients undergoing robotic-assisted laparoscopic prostatectomy in steep 45° Trendelenburg position.
Sebastian Blecha,Marion Harth,Felix Schlachetzki,Florian Zeman,Christiane Blecha,Pierre Flora,Maximilian Burger,Stefan Denzinger,Bernhard M. Graf,Horst Helbig,Michael T. Pawlik +10 more
TL;DR: The combination of STP and capnoperitoneum during RALP has a pronounced influence on IOP and, to a lesser degree, on ICP, and is directly correlated with increasing PIP and MAP.
Journal ArticleDOI
The relation of optic nerve sheath diameter (ONSD) and intracranial pressure (ICP) in pediatric neurosurgery practice - Part I: Correlations, age-dependency and cut-off values
Susanne R. Kerscher,Daniel Schöni,Helene Hurth,Felix Neunhoeffer,Karin Haas-Lude,Markus Wolff,Martin U. Schuhmann +6 more
TL;DR: Transorbital ultrasound measurement of ONSD is a reliable non-invasive technique to assess increased ICP in children in every clinical situation; however, the impact of age and fontanelle status needs to be considered.
References
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The American College of Rheumatology 1990 criteria for the classification of giant cell arteritis
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Diagnostic criteria for idiopathic intracranial hypertension
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Journal ArticleDOI
Color Duplex Ultrasonography in the Diagnosis of Temporal Arteritis
TL;DR: In patients with typical clinical signs and a halo on ultrasonography, it may be possible to make a diagnosis of temporal arteritis and begin treatment without performing a temporal-artery biopsy.
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Ultrasonography of optic nerve sheath diameter for detection of raised intracranial pressure: a systematic review and meta-analysis
TL;DR: Ultrasonography of ONSD shows a good level of diagnostic accuracy for detecting intracranial hypertension, which may help physicians decide to transfer patients to specialized centers or to place an invasive device when specific recommendations for this placement do not exist.
Journal ArticleDOI
Validation of the optic nerve sheath response to changing cerebrospinal fluid pressure: ultrasound findings during intrathecal infusion tests
TL;DR: The human ONS has sufficient elasticity to allow a detectable dilation in response to intracranial hypertension, and the clinical relevance of this method relies on the demonstration of pathologically enlarged sheaths or ongoing enlargement on serial ultrasonography studies.