Effect of Different Supralottic Airway Devicess on Optic Nerve Sheath Diameter

Zonguldak Bulent Ecevit University

Status: Completed

Conditions: Optic Nerve Sheath Diameter; Supraglottic Airway Device; Intracranial Pressure Increase

Treatments: Other: pLMA: PROSEAL LARYNGEAL MASK, sLMA : SUPREMA LARYNGEAL MASK, I-jel =I-GEL

Study type: Observational

Funder types: Other

Identifiers

NCT05499754

2019/09

Details and patient eligibility

About

Direct laryngoscopy and tracheal intubation are associated with increases in intraocular pressure (IOP), intracranial pressure (ICP), heart rate (HR), and blood pressure. The use of supraglottic airway devices (SADs) are known to be beneficial in overcoming the disadvantages of laryngoscopy and tracheal intubation, especially ocular and pressure stress responses. In recent years, it has been reported that ultrasonographic measurement of optic nerve sheath diameter (ONSD) can be used in the diagnosis of increased ICP. The aim of our study is to compare the effects of Proseal laryngeal mask airway (pLMA), Suprem laryngeal mask airway (sLMA) and I-gel on hemodynamic response and ONSD during insertion in adult patients.

Enrollment: 90 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• ASA physical status of I-II
• elective surgery
• non-ophthalmic procedures
• 1-2 h duration
• general anaesthesia
• supine position

Exclusion criteria

• Mallampati and ASA status ≥III,

• a history or suspect of difficult airway,

• previous intracranial/ocular surgery,

• cerebral edema/high intracranial pressure,

• glaucoma,

• uncontrolled hypertension

  -, diabetic retinopathy,

• obstetric patients,

• those who refused to participate in the study

Trial design

90 participants in 3 patient groups

pLMA(n=30)

Treatment:

Other: pLMA: PROSEAL LARYNGEAL MASK, sLMA : SUPREMA LARYNGEAL MASK, I-jel =I-GEL

sLMA(n=30)

Treatment:

Other: pLMA: PROSEAL LARYNGEAL MASK, sLMA : SUPREMA LARYNGEAL MASK, I-jel =I-GEL

I-jel(n=30)

Treatment:

Other: pLMA: PROSEAL LARYNGEAL MASK, sLMA : SUPREMA LARYNGEAL MASK, I-jel =I-GEL