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https://www.readbyqxmd.com/read/29768927/ultrasonographic-optic-nerve-sheath-diameter-to-detect-increased-intracranial-pressure-in-adults-a-meta-analysis
#1
Sung-Eun Kim, Eun Pyo Hong, Heung Cheol Kim, Si Un Lee, Jin Pyeong Jeon
Background The optimal optic nerve sheath diameter (ONSD) cut-off for identifying increased intracranial pressure (IICP) remains unclear in adult patients. Purpose To validate the diagnostic accuracy of ultrasonographic (US) ONSD > 5.0 mm as a cut-off for detecting IICP by computed tomographic (CT) through a meta-analysis. Material and Methods A systemic literature review was performed of online databases from January 1990 to September 2017. A bivariate random-effects model was used to estimate pooled sensitivity, specificity, and diagnostic odds ratio (DOR) with 95% confidence intervals (CIs)...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29767632/reply-to-comment-on-invasive-and-noninvasive-means-of-measuring-intracranial-pressure-a-review
#2
Xuan Zhang, Joshua E Medow, Bermans J Iskandar, Fa Wang, Mehdi Shokoueinejad, Joyce Koueik, John G Webster
In their comments, Drs. De Bernardo and Rosa stated that our paper was missing several references
 related to optic nerve sheath diameter ONSD assessments. Specifically, they state that we neglected to
 mention that ultrasound has been used since the 1970s, that we did not emphasize the role of
 Standardized A scans, and they reference some of their publications in which they emphasize the
 importance of these scans in diagnosing optic nerve lesions and benign intracranial hypertension...
May 16, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29763714/optic-nerve-sheath-diameter-measured-using-early-unenhanced-brain-computed-tomography-shows-no-correlation-with-neurological-outcomes-in-patients-undergoing-targeted-temperature-management-after-cardiac-arrest
#3
Dong Hoon Lee, Sun Hwa Lee, Je Hyeok Oh, In Soo Cho, Young Hwan Lee, Chul Han, Wook Jin Choi, You Dong Sohn
AIM: Previous studies indicated that the optic nerve sheath diameter (ONSD) measured using brain computed tomography (CT) is a prognostic factor for poor neurological outcome after cardiac arrest. However, these studies were retrospective or included a small sample size. We performed a prospective multi-centre observational study to investigate the correlation between the ONSD on early brain CT and neurological outcomes in patients undergoing targeted temperature management (TTM). METHODS: This study used data from the Korean Hypothermia Network prospective registry between November 2015 and October 2016...
May 12, 2018: Resuscitation
https://www.readbyqxmd.com/read/29740393/comparison-of-ocular-ultrasonography-and-magnetic-resonance-imaging-for-detection-of-increased-intracranial-pressure
#4
David F Patterson, Mai-Lan Ho, Jacqueline A Leavitt, Nathan J Smischney, Sara E Hocker, Eelco F Wijdicks, David O Hodge, John Jing-Wei Chen
Background/aims: To evaluate and compare the performance of ocular ultrasonography (US) and magnetic resonance imaging (MRI) for detecting increased intracranial pressure (ICP) in patients with idiopathic intracranial hypertension (IIH). Methods: Twenty-two patients with papilledema from IIH and 22 with pseudopapilledema were prospectively recruited based on funduscopic and clinical findings. Measurements of optic nerve sheath diameters (ONSDs) 3 mm behind the inner sclera were performed on B-scan US and axial T2-weighted MRI examinations...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29725178/bedside-ultrasonography-as-an-alternative-to-computed-tomography-scan-for-the-measurement-of-optic-nerve-sheath-diameter
#5
Uday Yanamandra, Amul Gupta, Sushma Yanamandra, Subrat Kumar Das, Sagarika Patyal, Velu Nair
Background: Optic nerve sheath diameter (ONSD) as measured by optic nerve sheath ultrasonography (ONSU) is used as a surrogate marker of intracranial pressure (ICP), especially in resource-limited settings. There is a growing interest in the use of ONSU in emergency and high-altitude setups. Notwithstanding multiple studies done on this subject, there is a paucity of data regarding standardization of techniques and comparison of ONSU with computed tomography (CT). Materials and Methods: Thirty-five patients with a diagnosis of high-altitude cerebral edema were enrolled in the study...
April 2018: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29657371/comparison-of-optic-nerve-sheath-diameter-between-both-eyes-a-bedside-ultrasonography-approach
#6
Uday Yanamandra, Amul Gupta, Srinivasa A Bhattachar, Sushma Yanamandra, Subrat K Das, Sagarika Patyal, Rajan Grewal, Velu Nair
Context: Optic nerve sheath diameter (ONSD) has long been accepted as a reliable proxy of intracranial pressure especially in critical care and bedside settings. The present consensus is to measure ONSD in both eyes and take average value, which is cumbersome and a potential cause of discomfort to the patient. Aim: We aim to compare the values of ONSD of the right and left eye in a random sample as measured by bedside ocular ultrasonography (USG) in Indian adults...
March 2018: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29628552/ultrasonographic-optic-nerve-sheath-diameter-as-a-surrogate-measure-of-raised-intracranial-pressure-in-severe-pregnancy-induced-hypertension-patients
#7
Shiv Kumar Singh, Kiran Bhatia
Context: It is a well-known fact that severe pregnancy-induced hypertension (PIH) can be disastrous at times as it can cause a lot of complications to both pregnant women and her baby. Hence, it is always desirable to know the extent of severity by a real-time and easily accessible modality like ultrasound. Aims: The aim of the study was to evaluate the incidence of raised intracranial pressure (ICP) in severe preeclampsia and eclampsia patients using ocular ultrasonography with optic nerve sheath diameter (ONSD) measurement...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29492535/non-invasive-intracranial-pressure-assessment-in-brain-injured-patients-using-ultrasound-based-methods
#8
Chiara Robba, Danilo Cardim, Tamara Tajsic, Justine Pietersen, Michael Bulman, Frank Rasulo, Rita Bertuetti, Joseph Donnelly, Liu Xiuyun, Zofia Czosnyka, Manuel Cabeleira, Peter Smielewski, Basil Matta, Alessandro Bertuccio, Marek Czosnyka
BACKGROUND: Non-invasive measurement of intracranial pressure (ICP) can be invaluable in the management of critically ill patients. Invasive measurement of ICP remains the "gold standard" and should be performed when clinical indications are met, but it is invasive and brings some risks. In this project, we aim to validate the non-invasive ICP (nICP) assessment models based on arterious and venous transcranial Doppler ultrasonography (TCD) and optic nerve sheath diameter (ONSD)...
2018: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/29480684/artificial-neural-networks-can-be-effectively-used-to-model-changes-of-intracranial-pressure-icp-during-spinal-surgery-using-different-non-invasive-icp-surrogate-estimators
#9
Abdulla Watad, Nicola L Bragazzi, Susanna Bacigaluppi, Howard Amital, Samaa Watad, Kassem Sharif, Bishara Bisharat, Anna Siri, Ala Mahamid, Hakim Abu Ras, Ahmed Nasr, Federico Bilotta, Chiara Robba, Mohammad Adawi
BACKGROUND: Artificial Intelligence (AI) techniques play a major role in anesthesiology, even though their importance is often overlooked. In the extant literature, AI approaches, such as Artificial Neural Networks (ANNs), have been underutilized, mainly being used to model patient's consciousness state, to predict the precise amount of anesthetic gases, the level of analgesia, or the need of anesthesiological blocks, among others. In the field of neurosurgery, ANNs have been effectively applied to the diagnosis and prognosis of cerebral tumors, seizures, low back pain, and also to the monitoring of intracranial pressure (ICP)...
February 23, 2018: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29479964/bedside-measurement-of-the-optic-nerve-sheath-diameter-with-ultrasound-in-cerebrovascular-disorders
#10
Yücel Yüzbaşıoğlu, Sema Yüzbaşıoğlu, Selçuk Coşkun, Ferhat İçme, Tolga Öz, Refik Kunt, Sinan Becel, Emine Akçay, Havva Şahin Kavaklı
Background/aim: We aimed to show the role of determination of optic nerve sheath diameter (ONSD) by bedside ultrasonography in an emergency department in the diagnosis of cerebrovascular disorders and its correlation with the clinical picture. Materials and methods: This prospective cross-sectional study included 55 patients with cerebrovascular disorders and 53 controls. Age, sex, ONSD, comorbid disease status, and multidetector computed tomography results of all subjects and application periods and National Institutes of Health Stroke Scale (NIHSS) scores of the patient group were evaluated...
February 23, 2018: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29479105/prognostic-significance-of-optic-nerve-sheath-diameter-on-computed-tomography-scan-with-severity-of-blunt-traumatic-brain-injury-in-the-emergency-department
#11
Shahan Waheed, Muhammad Akbar Baig, Emaduddin Siddiqui, Danyal Jamil, Masharib Bashar, Asher Feroze
Optic nerve sheath diameter measurement (ONSD) has been associated with identifying the prognosis of traumatic brain injury (TBI) patients. The study was planned to evaluate the prognostic value of ONSD measured on the initial brain computed tomography (CT) scan performed on patients with blunt TBI in the emergency department(ED). This retrospective cross-sectional study was conducted at the Aga Khan University Hospital, Karachi, and comprised data of moderate and severe TBI patients from January to December 2014...
February 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29433056/optic-nerve-sheath-diameter-based-on-preoperative-brain-computed-tomography-and-intracranial-pressure-are-positively-correlated-in-adults-with-hydrocephalus
#12
Hyung-Chul Lee, Won-Jong Lee, Yun-Sik Dho, Won-Sang Cho, Yong Hwy Kim, Hee-Pyoung Park
OBJECTIVE: The usefulness of optic nerve sheath diameter (ONSD) in predicting increased intracranial pressure (ICP) is not well established in adults with hydrocephalus. In this retrospective study, we evaluated the correlation between ONSD measured on brain computed tomography (CT) and ICP in adults with hydrocephalus. PATIENTS AND METHODS: ONSDs were measured on preoperative brain CT images from 64 adult patients with hydrocephalus who underwent extracranial ventricular drainage or a ventriculoperitoneal shunt in 2016...
April 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29415565/effect-of-mannitol-on-ultrasonographically-measured-optic-nerve-sheath-diameter-as-a-surrogate-for-intracranial-pressure-during-robot-assisted-laparoscopic-prostatectomy-with-pneumoperitoneum-and-the-trendelenburg-position
#13
In-Jung Jun, Myong Kim, Joonho Lee, Se-Ung Park, Jai-Hyun Hwang, Jun Hyuk Hong, Young-Kug Kim
INTRODUCTION: CO2 pneumoperitoneum and the steep Trendelenburg position during robot-assisted laparoscopic prostatectomy (RALP) can increase intracranial pressure (ICP). Mannitol is widely used to treat increased ICP. However, no studies to date have specifically evaluated the effect of mannitol on ICP in patients undergoing RALP. Ultrasonographic measurement of the optic nerve sheath diameter (ONSD) is considered a reliable technique to noninvasively evaluate the ICP. Therefore, this study compared ONSDs as a surrogate for ICP before and after mannitol administration in prostate cancer patients undergoing RALP...
March 13, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29392301/ultrasonography-assessments-of-optic-nerve-sheath-diameter-as-a-noninvasive-and-dynamic-method-of-detecting-changes-in-intracranial-pressure
#14
Li-Juan Wang, Li-Min Chen, Ying Chen, Li-Yang Bao, Nan-Nan Zheng, Yu-Zhi Wang, Ying-Qi Xing
Importance: The crtierion standard method for monitoring intracranial pressure (ICP) can result in complications and pain. Hence, noninvasive, repeatable methods would be valuable. Objective: To examine how ultrasonographic optic nerve sheath diameter (ONSD) correlated with noninvasive and dynamically monitored ICP changes. Design, Setting, and Participants: The ONSD was measured before the lumbar puncture (LP) in 60 patients on admission...
March 1, 2018: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29380112/use-of-neuroimaging-measurements-of-optic-nerve-sheath-diameter-to-assess-intracranial-pressure-in-craniosynostosis
#15
Mostafa Haredy, Giulio Zuccoli, Mandeep Tamber, Amani Davis, Ken Nischal, Jesse A Goldstein
PURPOSE: This study aims to evaluate accuracy of optic nerve sheath diameter (ONSD) measurements obtained by magnetic resonance imaging (MRI) in patients with craniosynostosis (CS) for detection of high intracranial pressure (ICP) and to correlate MRI-derived ONSD measurements with those obtained by computed tomography (CT) scans in CS patients. METHODS: A retrospective review was conducted on CS patients who had MRI- and age-matched controls with normal MRI. Diagnosis of intracranial hypertension was based on presence of papilledema, direct ICP monitoring, and/or lumbar puncture...
May 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29356623/effect-of-history-of-mild-traumatic-brain-injury-on-optic-nerve-sheath-diameter-changes-after-valsalva-maneuver
#16
Matthew Lyon, Parth Agrawal, Kyle Friez, Richard Gordon, Ivan Morales, Li Fang Zhang, Hongyan Xu, Ian Heger, Robert W Gibson
Optic nerve sheath diameter (ONSD) measured by transocular ultrasound is a marker of real-time intracranial pressure (ICP). The objective of this study was to evaluate the association between optic nerve sheath (ONS) dilation after a Valsalva maneuver and a prior history of mild to moderate traumatic brain injury (mTBI) in a heterogeneous sample of participants. Participants were excluded if they had had a recent brain injury, were symptomatic from a prior brain injury, had a history consistent with severe TBI and/or had undergone intracranial surgery...
February 15, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29338967/real-time-optic-nerve-sheath-diameter-measurement-during-lumbar-puncture
#17
Getaw Worku Hassen, Mohammed Al-Juboori, Barbara Koppel, Gokhan Akfirat, Hossein Kalantari
Measurement of optic nerve sheath diameter (ONSD) using point of care ultrasound has been used to indirectly assess the intracranial pressure (ICP) particularly in conditions where it is raised. Direct pressure measurements using probes reaching the ventricle system correlated with ONSD using ultrasound. Attempts were made to measure the ONSD pre and post lumbar puncture (LP) after draining cerebrospinal fluid (CSF) as well as post ventricular shunt placement. We report ONSD measurement and demonstrate dynamic changes during LP in a patient with known idiopathic intracranial hypertension (IIH)...
January 10, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29246580/measurement-and-associations-of-the-optic-nerve-subarachnoid-space-in-normal-tension-and-primary-open-angle-glaucoma
#18
Hanruo Liu, Diya Yang, Teng Ma, Wenyuan Shi, Qiang Zhu, Jun Kang, Ningli Wang
PURPOSE: To measure the area of the optic nerve subarachnoid space (ONSASA) in patients with normal tension glaucoma (NTG), primary open-angle glaucoma (POAG), and controls and examine its association with relevant ocular and systemic parameters. DESIGN: Cross-sectional study. METHODS: The study included 40 patients with NTG, 42 with POAG, and 45 healthy controls. B-scan ultrasound was performed binocularly, using a 12.5-MHz linear array probe...
February 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29171933/transpalpebral-ultrasonographic-measurement-of-the-optic-nerve-sheath-diameter-in-healthy-dogs
#19
Joshua J Smith, Daniel J Fletcher, Stacy D Cooley, Margret S Thompson
OBJECTIVE: To develop a reference range for ultrasonographically measured optic nerve sheath diameter (ONSD-US) in dogs. We hypothesized that ONSD-US can be measured reliably and is associated with weight but not age, sex, or body condition score (BCS), and that the relationship between weight and ONSD-US in dogs is allometric due to canine size variations. DESIGN: Prospective, observational study. SETTING: University teaching hospital. ANIMALS: Seventy-eight healthy adult dogs...
January 2018: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/29162911/ultrasonographic-measurement-of-the-optic-nerve-sheath-diameter-and-its-association-with-eyeball-transverse-diameter-in-585-healthy-volunteers
#20
Dong Hwan Kim, Jin-Sun Jun, Ryul Kim
The optic nerve sheath diameter (ONSD) is considered as an indirect marker for intracranial pressure (ICP). However, the optimal cut-off value for an abnormal ONSD indicating elevated ICP and its associated factors have been unclear. Thus, we investigated normative values for the ONSD using ultrasonography and investigate the potential factors affecting it. We prospectively recruited healthy volunteers between September 2016 and March 2017. A total of 585 individuals were included, in which the mean ONSD was 4...
November 21, 2017: Scientific Reports
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