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Endotracheal intubation and laryngeal mask are generally applied to secure the airway during general anesthesia. There is a widespread opinion among anesthesiologists that endotracheal intubation increases intracranial pressure. Since there were no non-invasive methods measuring intracranial pressure in the past, adequate studies on this subject could not be done. With this measurement, we aimed to show whether ETT or LMA applications have effects on intracranial pressure.
In normal pediatric patients with closed fontanelles, the contents of the central nervous system are almost compressed into the skull and spinal canal. Intracranial pressure is created and constant by the total volume of brain, CSF, and blood within the skull. Increased intracranial pressure can be measured with an intraventricular catheter, transducers, and a subarachnoid bolt. By measuring the diameter of the optic nerve sheath with ultrasonography, we can find out whether there is an increase in intracranial pressure non-invasively.
Endotracheal intubation and laryngeal mask are generally applied to secure the airway during general anesthesia. There is a widespread opinion among anesthesiologists that endotracheal intubation increases intracranial pressure. Since there were no non-invasive methods measuring intracranial pressure in the past, adequate studies on this subject could not be done. With this measurement, we aimed to show whether ETT or LMA applications have effects on intracranial pressure.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group 1 | Active Comparator | 30 patients who will be intubated with a video laryngoscope and who meet the inclusion criteria are randomly selected by lottery method. After obtaining the consent of the patient's family, the patient is taken to the operating room and monitored. 5 minutes after sedation with 1 mg midazolam, the optic nerve sheath diameter of both eyes is measured with a linear ultrasound probe and recorded (T0). 5 minutes after the patient is intubated with a video laryngoscope, the optic nerve sheath diameter of both eyes is measured and recorded (T1). After the patient's extubation at the end of the case, the optic nerve sheath diameter of both eyes is measured and recorded (T2). Vitals (pulse, blood pressure, saturation) involved in T0, T1 and T2 processes are recorded. |
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| Group 2 | Active Comparator | 30 patients who will be intubated with a normal laryngoscope and who meet the inclusion criteria are randomly selected by lottery method. After obtaining the consent of the patient's family, the patient is taken to the operating room and monitored. 5 minutes after sedation with 1 mg midazolam, the optic nerve sheath diameter of both eyes is measured with a linear ultrasound probe and recorded (T0). 5 minutes after the patient is intubated with a normal laryngoscope, the optic nerve sheath diameter of both eyes is measured and recorded (T1). After the patient's extubation at the end of the case, the optic nerve sheath diameter of both eyes is measured and recorded (T2). Vitals (pulse, blood pressure, saturation) involved in T0, T1 and T2 processes are recorded. |
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| Group 3 | Active Comparator | 30 patients who will be ventilated with a laryngeal mask airway (LMA) and who meet the inclusion criteria are randomly selected by lottery method. After obtaining the consent of the patient's family, the patient is taken to the operating room and monitored. 5 minutes after sedation with 1 mg midazolam, the optic nerve sheath diameter of both eyes is measured with a linear ultrasound probe and recorded (T0). The optic nerve sheath diameter of both eyes is measured and recorded 5 minutes after LMA is placed on the patient (T1). After the patient's extubation at the end of the case, the optic nerve sheath diameter of both eyes is measured and recorded (T2). Vitals (pulse, blood pressure, saturation) involved in T0, T1 and T2 processes are recorded. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Optic nerve sheath diameter measurement with linear ultrasound | Diagnostic Test | In this study, we aimed to show whether endotracheal intubation or LMA applications with optic nerve sheath diameter measurement, which is a completely non-invasive method, have effects on intracranial pressure. |
| Measure | Description | Time Frame |
|---|---|---|
| Optic nerve sheath diameter measurement at pediatric patients | to show whether endotracheal intubation or LMA applications with optic nerve sheath diameter measurement, which is a completely non-invasive method, have effects on intracranial pressure. | 6 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Feyza Calisir | Contact | 05056492875 | fbolcal@hotmail.com |
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| ID | Term |
|---|---|
| D019574 | Optic Nerve Neoplasms |
| D019586 | Intracranial Hypertension |
| ID | Term |
|---|---|
| D003390 | Cranial Nerve Neoplasms |
| D009423 | Nervous System Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
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| D010524 |
| Peripheral Nervous System Neoplasms |
| D003389 | Cranial Nerve Diseases |
| D009422 | Nervous System Diseases |
| D009901 | Optic Nerve Diseases |
| D005128 | Eye Diseases |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |