scholarly journals Ultrasound assessment of optic nerve sheath diameter for evaluation of elevated intracranial pressure in patient with head trauma: A comparative study with CT head

2021 ◽  
Vol 4 (2) ◽  
pp. 01-04
Author(s):  
Dr. Payal damor ◽  
Dr. Sunil Vatukiya
Keyword(s):  
Optic Nerve ◽  
Intracranial Pressure ◽  
Comparative Study ◽  
Head Trauma ◽  
Optic Nerve Sheath Diameter ◽  
Optic Nerve Sheath ◽  
Elevated Intracranial Pressure ◽  
Nerve Sheath ◽  
Ct Head ◽  
Ultrasound Assessment

scholarly journals Optic Nerve Sheath Diameter Correlation with Elevated Intracranial Pressure Determined via Ultrasound

Cureus ◽  
2019 ◽  
Author(s):  
Kamran Munawar ◽  
Muhammad Tariq Khan ◽  
Syed Waqar Hussain ◽  
Aayesha Qadeer ◽  
Zahid Siddique Shad ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Intracranial Pressure ◽  
Optic Nerve Sheath Diameter ◽  
Optic Nerve Sheath ◽  
Elevated Intracranial Pressure ◽  
Nerve Sheath

scholarly journals Elevated Intracranial Pressure Diagnosis with Emergency Department Bedside Ocular Ultrasound

2015 ◽  
Vol 2015 ◽  
pp. 1-3 ◽  
Author(s):  
D. Amin ◽  
T. McCormick ◽  
T. Mailhot
Keyword(s):  
Emergency Department ◽  
Optic Nerve ◽  
Intracranial Pressure ◽  
Vision Loss ◽  
Optic Nerve Sheath Diameter ◽  
Optic Nerve Sheath ◽  
Elevated Intracranial Pressure ◽  
Nerve Sheath ◽  
Ocular Ultrasound ◽  
Fundoscopic Examination

Bedside sonographic measurement of optic nerve sheath diameter can aid in the diagnosis of elevated intracranial pressure in the emergency department. This case report describes a 21-year-old female presenting with 4 months of mild headache and 2 weeks of recurrent, transient binocular vision loss. Though limited by patient discomfort, fundoscopic examination suggested the presence of blurred optic disc margins. Bedside ocular ultrasound (BOUS) revealed wide optic nerve sheath diameters and bulging optic discs bilaterally. Lumbar puncture demonstrated a cerebrospinal fluid (CSF) opening pressure of 54 cm H2O supporting the suspected diagnosis of idiopathic intracranial hypertension. Accurate fundoscopy can be vital to the appropriate diagnosis and treatment of patients with suspected elevated intracranial pressure, but it is often technically difficult or poorly tolerated by the photophobic patient. BOUS is a quick and easily learned tool to supplement the emergency physician’s fundoscopic examination and help identify patients with elevated intracranial pressure.

scholarly journals Effects of positive end-expiratory pressure, carbon dioxide and body position on intracranial pressure measured by ultrasound assessment of optic nerve sheath diameter

2021 ◽  
Vol 74 (1-2) ◽  
pp. 45-49
Author(s):  
Adrijana Bojicic ◽  
Gordana Jovanovic ◽  
Filip Pajicic ◽  
Milanka Tatic
Keyword(s):  
Carbon Dioxide ◽  
Optic Nerve ◽  
Intracranial Pressure ◽  
Body Position ◽  
Venous Pressure ◽  
Optic Nerve Sheath Diameter ◽  
Optic Nerve Sheath ◽  
Positive End Expiratory Pressure ◽  
Nerve Sheath ◽  
Ultrasound Assessment

Introduction. The optic nerve is surrounded by layers of meninges and cerebrospinal fluid, which is why intracranial pressure affects the optic nerve sheath. Noninvasive measurement of the optic nerve sheath diameter is simple, accurate, repeatable and with minimal side effects. Effects of positive end-expiratory pressure on intracranial pressure. The application of positive end-expiratory pressure plays a significant role in improving gas exchange, but it leads to an increase in intrathoracic and central venous pressure, cerebral blood volume, reduces arterial and cerebral perfusion pressure and thus futher increases intracranial pressure. The effect of positive end-expiratory pressure depends on basal intracranial pressure and respiratory system compliance. Effects of carbon dioxide on intracranial pressure. Hypercapnia leads to cerebral vasodilatation and increases cerebral blood flow and intracranial pressure. Hypocapnia reduces intracranial pressure, but its prolonged effect may lead to cerebral ischemia. Effects of body position on intracranial pressure. Body position affects intracranial pressure, primarily by affecting cerebral venous drainage. Conclusion. Body position, application of positive end-expiratory pressure, and changes in carbon dioxide can affect intracranial pressure, which is why its monitoring is of importance. Numerous studies show that their effects on intracranial pressure can be easily monitored by ultrasound assessment of optic nerve sheath diameter.

BEDSIDE SONGRAPHIC MEASUREMENT OF OPTIC NERVE SHEATH DIAMETER (ONSD) AS A PREDICTOR OF ELEVATED INTRACRANIAL PRESSURE (EICP) IN CHILDREN

2007 ◽  
Vol 23 (10) ◽  
pp. 763
Author(s):  
Audrey H. Le ◽  
Mary Ellen Hoehn ◽  
Mary Smith ◽  
Thomas Spentzas ◽  
David Schlappy ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Intracranial Pressure ◽  
Optic Nerve Sheath Diameter ◽  
Optic Nerve Sheath ◽  
Elevated Intracranial Pressure ◽  
Nerve Sheath
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