The Effect of Neostigmine and Sugammadex on the Optic Nerve Sheath Diameter
Comparison of the Effects of Neostigmine and Sugammadex on the Optic Nerve Sheath Diameter During the Postoperative Extubation Period
Cukurova University
86 participants
Jun 4, 2026
INTERVENTIONAL
Conditions
Summary
This study will compare how two drugs, sugammadex and neostigmine-used to reverse muscle relaxation after surgery-affect the size of the optic nerve sheath (the nerve behind the eye) as patients wake up and have their breathing tubes removed. It will also examine the relationship between changes in blood pressure and heart rate during this time and these measurements. This study will be conducted on 86 healthy patients aged 18-65 who will undergo planned surgery at the Çukurova University Faculty of Medicine, Department of Anesthesiology and Reanimation. Patients will be randomly divided into two groups: the sugammadex group and the neostigmine group. All patients will receive standard general anesthesia and rocuronium to relax their muscles. At the end of the surgery, to reverse this effect, patients will be given either sugammadex or a mix of neostigmine and atropine. Group S will receive 2 mg sugammadex per kg, while Group N will receive 0.05 mg neostigmine and 0.02 mg atropine per kg. The width of the optic nerve sheath will be measured by ultrasound 5 minutes after the breathing tube is inserted, 5 minutes before the tube is removed, and 5 minutes after it is removed. Additionally, blood pressure, heart rate, and any complications during the surgery will be tracked and compared between the groups.
Eligibility
Inclusion Criteria3
- With an ASA physical status of 1-2
- Patients scheduled for elective surgery
- Patients willing to participate in the study
Exclusion Criteria8
- Patients with heart, liver, kidney, or respiratory failure
- Brain tumors, hemorrhages, or aneurysms
- Patients who have undergone eye, cardiovascular, or neurosurgery
- Eye or neurological diseases or increased intracranial pressure
- Laparoscopic surgeries
- Cases not in the supine position
- Allergy to the medications used
- Patients who did not provide informed consent to participate in the study.
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Interventions
Intravenous bolus injection
Intravenous bolus injection
Locations(1)
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NCT07666984