The aim of this study is to investigate the effects of low and normal intraperitoneal pressures on intraoperative optic nerve sheath diameter in laparoscopic gyneco-oncologic surgeries.
Laparoscopic gyneco-oncological surgeries
Female patients aged 18-65 years
ASA physical status classification I-II-III patients
Patients with diabetic retinopathy
Patients with glaucoma
Patients with cerebrovascular disease
Pregnant women
Crossover
Low pressure group
Other interventionIn laparoscopic gyneco-oncological surgeries, low pressure group will receive below 12 mmHg intraperitoneal pressure.
Normal pressure group
Other interventionIn laparoscopic gyneco-oncological surgeries, normal pressure group will receive 12 and abowe 12 mmHg intraperitoneal pressure.
Measurement of optic nerve sheath diameter (ONSD)
ONSD will be measured in the supine position by ulrasonographic measurement.After obtaining optimal contrast between the retrobulbar echogenic fat tissue and the vertical hypoechoic band, the ONSD will be measured 3 mm behind the optic disc using an electronic caliper. The final ONSD value was calculated by averaging 4 measured values: measured values of transverse and sagittal plane of both eyes.
Measurement of optic nerve sheath diameter (ONSD)
ONSD will be measured by ulrasonographic measurement.After obtaining optimal contrast between the retrobulbar echogenic fat tissue and the vertical hypoechoic band, the ONSD will be measured 3 mm behind the optic disc using an electronic caliper. The final ONSD value was calculated by averaging 4 measured values: measured values of transverse and sagittal plane of both eyes.
Measurement of optic nerve sheath diameter (ONSD)
ONSD will be measured in the supine position by ulrasonographic measurement.After obtaining optimal contrast between the retrobulbar echogenic fat tissue and the vertical hypoechoic band, the ONSD will be measured 3 mm behind the optic disc using an electronic caliper. The final ONSD value was calculated by averaging 4 measured values: measured values of transverse and sagittal plane of both eyes.
Measurement of optic nerve sheath diameter (ONSD)
ONSD will be measured by ulrasonographic measurement.After obtaining optimal contrast between the retrobulbar echogenic fat tissue and the vertical hypoechoic band, the ONSD will be measured 3 mm behind the optic disc using an electronic caliper. The final ONSD value was calculated by averaging 4 measured values: measured values of transverse and sagittal plane of both eyes.
Measurement of optic nerve sheath diameter (ONSD)
ONSD will be measured by ulrasonographic measurement.After obtaining optimal contrast between the retrobulbar echogenic fat tissue and the vertical hypoechoic band, the ONSD will be measured 3 mm behind the optic disc using an electronic caliper. The final ONSD value was calculated by averaging 4 measured values: measured values of transverse and sagittal plane of both eyes.
numerical rating scale (NRS) at rest
Recording the patient's pain at rest on the Numerical Rating Scale (NRS) by asking the patient
numerical rating scale (NRS) at rest
Recording the patient's pain at rest on the Numerical Rating Scale (NRS) by asking the patient
postoperative nosia and vomiting (PONV)
Recording the presence or absence of nausea and vomiting in the patient within the first 24 hours postoperatively
postoperative nosia and vomiting (PONV)
Recording the presence or absence of nausea and vomiting in the patient within the first 24 hours postoperatively
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