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Optic Nerve Sheath Diameter Changes During Bariatric Surgery

CompletedN/A

Sponsor: Fatih Sultan Mehmet Training and Research Hospital

Conditions: Morbid Obesity, Obesity

Interventions: Optic Nerve Sheath Diameter Measurement

Countries: Turkey (Türkiye)

This prospective clinical study aimed to evaluate the effects of pneumoperitoneum and patient positioning on intracranial pressure in patients undergoing bariatric surgery. Intracranial pressure was assessed noninvasively using ultrasonographic optic nerve sheath diameter (ONSD) measurements. ONSD measurements were performed before anesthesia induction in the supine position (T0), 5 minutes after anesthesia induction (T1), 5 minutes after creation of pneumoperitoneum and placement in the reverse Trendelenburg position (T2), at the 20th minute of pneumoperitoneum (T3), and 5 minutes after termination of pneumoperitoneum and return to the supine position (T4). The study aimed to determine the effects of anesthesia, pneumoperitoneum, and surgical positioning on intracranial pressure during bariatric surgery

Eligibility overview

Sex: ALL

Age: 18 Years to —

Healthy volunteers: No

Study type: OBSERVATIONAL

Eligibility criteria

Inclusion Criteria:

1. Patients scheduled for bariatric surgery.
2. ASA physical status 1-3
3. Patients aged 18 years and older

Exclusion Criteria:

1. Patients who declined to participate.
2. Age \<18 years.
3. ASA physical status IV.
4. Previous cataract surgery.
5. Presence of conditions associated with increased intracranial pressure, including hydrocephalus, cerebrovascular disease, or intracranial tumors.
6. Ocular conditions that could interfere with optic nerve sheath diameter measurement, including globe pathology or glaucoma

Locations (1)

Istanbul, Istanbul, Turkey (Türkiye)