Clinical trials: Optic Nerve Sheath Diameter
Upper Limb Injury, Intracranial Pressure Increase
Evaluation of Supraclavicular Brachial Plexus Blocks at Various Volumes: Impact on Optic Nerve Sheath Diameter
This study aimed to evaluate the anesthesia adequacy, side effects, and complication rates, as well as the postoperative pain relief effectiveness of supraclavicular brachial plexus blocks administered at different volumes under…
- Trial name
- NCT06428461
- Testing
- Supraclavicular brachial plexus block, Measurement of Optic Nerve Sheath Diameter (ONSD) Using B-Mode Ultrasound, Assessment of Peripheral Nerve Block Success Using Perfusion Index Measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 64 people
- Sponsor
- Pamukkale University
Cerebrospinal Fluid Shunts
Bedside Ultrasound to Measure Optic Nerve Sheath Diameter in Pediatric CSF Shunts
Bedside ultrasound in the emergency department is useful for quick assessments of patients. One growing use is to measure the optic nerve sheath diameter of patients for whom increased pressure in the head is a concern.
- Trial name
- NCT02776085
- Where
- United States
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Recruitment, Optic Nerve
The Effect of Alveolar Recruitment Manoeuvre on Optic Nerve Sheath Diameter in Laparoscopic Hysterectomies
Laparoscopic total hysterectomy is the most common gynaecological surgical procedure after caesarean section. In laparoscopic total hysterectomy, intraabdominal pressure increases, venous return decreases, hypercarbia and…
- Conditions
- Recruitment, Optic Nerve, Hysterectomy
- Trial name
- NCT06168578
- Testing
- ultrasound
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Balikesir University
Aortic Diseases, Cardiac Surgical Procedures
Selective Antegrade Cerebral Perfusion and Perioperative Optic Nerve Sheath Diameter in Ascending Aortic Surgery
In ascending aortic surgery the distal anastomosis may be constructed with the aortic cross-clamp maintained, or, where the extent of the aortic pathology and the geometry of the graft require it, after release of the cross-clamp…
- Conditions
- Aortic Diseases, Cardiac Surgical Procedures, Aortic Aneurysm, Thoracic, Delirium - Postoperative
- Trial name
- SACP-ONSD (NCT07800806)
- Testing
- Optic nerve sheath and optic nerve diameter ultrasonography, Transcranial Doppler ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 134 people
- Sponsor
- Koşuyolu Kartal Heart Training and Research Hospital
Osteotomy of Lower Extremity
The Effect of Continuous Epidural Analgesia on Intracranial Pressure by Measuring the Optic Nerve Sheath Diameter Using Ultrasound in Pediatric Patients
Ultrasonography of optic nerve sheath diameter shows a good level of diagnostic accuracy for detecting intracranial hypertension.
- Trial name
- NCT03911804
- Testing
- bolus group and infusion group for epidural block
- Where
- South Korea
- Volunteers
- 60 people
- Sponsor
- Yonsei University
Intracranial Hypertension
Optic Nerve Sheath Diameter and Intracranial Pressure (ICP) in Children
The use of optic nerve sheath diameter (ONSD) measurements as a non invasive test for raised ICP has many potential benefits. This includes having assessments that can be made at the bedside instead of requiring patient transport…
- Trial name
- NCT02507063
- Testing
- ultrasound
- Sponsor
- Anna Rominger
Intracranial Hypertension, Endotracheal Intubation
Lidocaine, Dexmedetomidine, Esmolol and Magnesium Effect on Optic Nerve Sheath Diameter After Laryngoscopy
This clinical trial aims to compare the effects of lidocaine, dexmedetomidine, esmolol, and magnesium on optic nerve sheath diameter and hemodynamic response to laryngoscopy.
- Conditions
- Intracranial Hypertension, Endotracheal Intubation, Optic Nerve Sheath Diameter, General Anesthesia
- Trial name
- NCT06254534
- Testing
- optic nerve ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Haseki Training and Research Hospital
Malignant Media Infarction, Stroke
Optic Nerve Sonography to Monitor Intracranial Pressure After Ischemic sTrokE - The ONSITE Study
The goal of the ONSITE study is to investigate whether an increase Optic nerve sheath diameter (ONSD) may help to predict intracranial hypertension (IH) after stroke.
- Conditions
- Malignant Media Infarction, Stroke, Intracranial Hypertension
- Trial name
- ONSITE (NCT06939114)
- Where
- Switzerland
- Volunteers
- 107 people
- Sponsor
- University of Zurich
Optic Nerve Sheath Diameter
Effect of Contrast Medium on Optic Nerve Sheath Diameter
One method of indirect measurement of intracranial pressure is using optic nerve sheath diameter. There is no study whether equal volume of contrast medium injection has any increasing effect of optic nerve sheath diameter.
- Trial name
- NCT04826042
- Testing
- thoracic epidural catheterization
- Where
- South Korea
- Volunteers
- 42 people
- Sponsor
- Keimyung University Dongsan Medical Center
Intracranial Pressure Increase
Change of Optic Nerve Sheath Diameter After Deflation of Pneumatic Tourniquet
The purpose of this study is to evaluate the change of the optic nerve sheath diameter after deflation of pneumatic tourniquet.
- Trial name
- NCT03782077
- Testing
- Deflation of pneumatic tourniquet
- Where
- South Korea
- Volunteers
- 20 people
- Sponsor
- Asan Medical Center
Increase Intra Cranial Pressure, Traumatic Brain Injury
Diagnostic Accuracy of the Optic Nerve Deformability Index and Optic Nerve Sheath Diameter as a Noninvasive Predictor of Intracranial Pressure
The study will be carried out on 50 patients, dichotomized into high and normal ICP groups, and we will assess both ONSD and DI in all patients.
- Trial name
- NCT06884319
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Benha University
Brachial Plexus Block, Intracranial Pressure Increase
The Effect of Interscalene Block on Intracranial Pressure
The study aims to show the effects of interscalene brachial plexus (ISBP) block on intracranial pressure by measuring optic nerve sheath diameter (ONSD) and internal vein collapsibility index (IJV-CI).
- Trial name
- NCT05434975
- Testing
- Interscalene brachial plexus block
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Cumhuriyet University
Optic Nerve Sheath Diameter Measurements for Carotis Endarterectomy
Can Optic Nerve Sheath Diameter Detect Norological Morbidities for Patients Undergoing Carotis Endarterectomy
The main purpose of this study is to investigate the contribution of changes in Optic Nerve Sheath Diameter (OSNC) measured at different periods during Carotid Endarterectomy (CEA) operations to the prediction of neurological…
- Trial name
- NCT06491693
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Başakşehir Çam & Sakura City Hospital
Intracranial Pressure Increase, Traumatic Brain Injuries
TCD and ONSD for Noninvasive Assessment of Increased ICP in TBI
This study will evaluate two non-invasive ultrasound methods, transcranial Doppler (TCD) and optic nerve sheath diameter (ONSD) ultrasound, for detecting signs of increased intracranial pressure in adults with traumatic brain…
- Trial name
- TCD ONSD TBI (NCT07816588)
- Testing
- Transcranial Doppler (TCD), Optic Nerve Sheath Diameter (ONSD) Ultrasound
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Ain Shams University
Pre-Eclampsia
Optic Nerve Sheath Diameter in Preeclampsia
Severe preeclampsia is associated with an elevation in intracranial pressure (ICP). Optic nerve sheath diameter is a non-invasive surrogate of invasive ICP measurement.
- Trial name
- NCT04004897
- Testing
- Optic nerve sheath diameter measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people
- Sponsor
- Kanuni Sultan Suleyman Training and Research Hospital
Positive End-expiratory Pressure (PEEP), Intracranial Pressure
The Effects of Positive End-expiratory Pressure (PEEP) on Optic Nerve Sheath Diameter in Laparoscopic Cholecystectomy
This prospective interventional study will evaluate the effects of applying positive end-expiratory pressure (PEEP) at 10 cmH₂O on optic nerve sheath diameter (ONSD) in patients undergoing elective laparoscopic cholecystectomy…
- Conditions
- Positive End-expiratory Pressure (PEEP), Intracranial Pressure, Optic Nerve Sheath Diameter, Mechanical Ventilation
- Trial name
- PEEPON (NCT06979999)
- Testing
- Positive End-Expiratory Pressure (PEEP)
- Where
- Turkey (Türkiye)
- Volunteers
- 34 people
- Sponsor
- Nigde Omer Halisdemir University
Intracranial Pressure Increase, Supraglottic Airway Device
Effect of Different Supralottic Airway Devicess on Optic Nerve Sheath Diameter
Direct laryngoscopy and tracheal intubation are associated with increases in intraocular pressure (IOP), intracranial pressure (ICP), heart rate (HR), and blood pressure.
- Conditions
- Intracranial Pressure Increase, Supraglottic Airway Device, Optic Nerve Sheath Diameter
- Trial name
- NCT05499754
- Testing
- pLMA: PROSEAL LARYNGEAL MASK, sLMA : SUPREMA LARYNGEAL MASK, I-jel =I-GEL
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Zonguldak Bulent Ecevit University
Postoperative Cognitive Dysfunction
Optic Nerve Sheath Diameter and Cognitive Outcomes in Bentall Surgery
Bentall surgery is a major cardiac procedure involving replacement of the ascending aorta, aortic root, and aortic valve, typically requiring cardiopulmonary bypass (CPB) and sometimes deep hypothermic circulatory arrest (DHCA).
- Trial name
- ONCOB (NCT07452367)
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Bursa Yuksek Ihtisas Training and Research Hospital
Supratentorial Brain Tumor
Perioperative Evaluation of Intracranial Hypertension by Ultrasound Measurement of Variations in the Diameter of the Sheath of the Optic Nerve in the Excision of a Tumor or Biopsy Supratentorial Brain
Neurosurgery for supratentorial brain tumor is frequently associated with preoperative intracranial hypertension. The evaluation of intracranial pressure is available noninvasively by measuring the diameter of the optic nerve…
- Trial name
- NCT01864499
- Testing
- ultrasound measurement of variations in the diameter of the sheath of the optic nerve
- Sponsor
- Poitiers University Hospital
Optic Nerve Sheath Diameter, Robot Assisted Laparoscopic Radical Prostatectomy
Analysis of Change of Optic Nerve Sheath Diameter in Robot Assisted Laparoscopic Radical Prostatectomy
In the present study, The investigators evaluated whether anesthetic agents effects on Optic Nerve Sheath Diameter in patients undergoing Robot Assisted Laparoscopic Radical Prostatectomy
- Trial name
- NCT03152981
- Testing
- Desflurane, propofol, remifentanil
- Where
- South Korea
- Volunteers
- 60 people
- Sponsor
- Seoul National University Hospital