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This study aims to compare the change of optic nerve sheath diameter in obese and non-obese patients undergoing laparoscopic gynecological surgery in a steep Trendelenburg position.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Obese group | Experimental | body mass index≥ 30 kg/m2 |
|
| Non-obese group | Active Comparator | BMI < 30 kg/m2 |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ultrasound assessment of optic nerve sheath diameter | Other | Using ultrasonography, optic nerve sheath diameter is measured during perioperative period. |
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| Measure | Description | Time Frame |
|---|---|---|
| Optic nerve sheath diameter | Using ultrasonography, optic nerve sheath diameter is measured. | 30 minutes after pneuroperitoneum in the Trendelenburg position |
| Measure | Description | Time Frame |
|---|---|---|
| Optic nerve sheath diameter | Using ultrasonography, optic nerve sheath diameter is measured. | 15 minutes after pneuroperitoneum in the Trendelenburg position |
| Optic nerve sheath diameter | Using ultrasonography, optic nerve sheath diameter is measured. |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| SMG-SNU Boramae Medical Center | Seoul | South Korea |
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| 60 minutes after pneuroperitoneum in the Trendelenburg position |
| Optic nerve sheath diameter | Using ultrasonography, optic nerve sheath diameter is measured. | 10 minutes after release of pneumoperitoneum and return to the supine position |
| Optic nerve sheath diameter | Using ultrasonography, optic nerve sheath diameter is measured. | At 1 hour after completion of surgery |
| Optic nerve sheath diameter | Using ultrasonography, optic nerve sheath diameter is measured. | At 24 hours after completion of surgery |
| Nausea and vomiting | The presence and severity of nausea and vomiting is evaluated. | At 1 hour after completion of surgery |
| Headache | The presence and severity of headache is evaluated. | At 1 hour after completion of surgery |
| Nausea and vomiting | The presence and severity of nausea and vomiting is evaluated. | At 24 hours after completion of surgery |
| Headache | The presence and severity of headache is evaluated. | At 24 hours after completion of surgery |