None listed
Conditions
Brief summary
We hypothesized that pneumoperitoneum and Trendelenburg position applied during laparoscopic hysterectomy would impact intracranial pressure. Optic nerve sheath diameter measured with USG reflects intracranial pressure. Therefore we are enrolling patients undergoing a laparoscopic hysterectomy in our institute and measuring optic nerve sheath diameter with a linear 13-6 megahertz probe during different stages of the surgery (eg. before and after pneumoperitoneum, before and after Trendelenburg position). The primary outcome is the change in optic nerve sheath diameter with pneumoperitoneum and Trendelenburg position. The secondary outcome is postoperative nausea and vomiting and postoperative headache.
Interventions
Optic nerve sheath diameter (ONSD) will be measured at six times using ultrasound :
1. Before anesthesia
2. 10 minutes after pneumoperitoneum
3. 10 minutes after Trendelenburg position
4. 60 minutes after Trendelenburg position
5. 10 minutes after supine position
6.20 minutes after CO2 desufflation
A laparoscopic hysterectomy will be carried out by the same surgeon who has over 10 years experience in gynecologic laparoscopy
Anesthesia will be managed by the same anesthesiologists with 9 years
Optic nerve sheath diameter (ONSD) will be measured at six times using ultrasound : 1. Before anesthesia 2. 10 minutes after pneumoperitoneum 3. 10 minutes after Trendelenburg position 4. 60 minutes after Trendelenburg position 5. 10 minutes after supine position 6.20 minutes after CO2 desufflation A laparoscopic hysterectomy will be carried out by the same surgeon who has over 10 years experience in gynecologic laparoscopy Anesthesia will be managed by the same anesthesiologists with 9 years experience ONSD measurement will be performed by a 15-year experienced radiologist.
Sponsors
University of Health Sciences
Study design
Allocation
Non-randomised trial
Primary purpose
Diagnosis
Eligibility
Sex/Gender
All
Age
38 Years to 78 Years
Healthy volunteers
No
Inclusion criteria
Female patients undergoing laparoscopic hysterectomy
Exclusion criteria
Patients with previous history of ocular disease, ocular surgery, neurologic disease and transient ischemic attack,
Outcome results
None listed