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Influence of Anesthesia in the Ultrassound measurement of the Optic Nerve in Gynecological Surgeries

Influence of the anesthetic technique (Total Intravenous Anesthesia X Balanced Anesthesia) on the behavior of measuring the Optic Nerve Sheath Diameter by Ultrasound in Laparoscopic Gynecological Surgeries. Randomized clinical trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-7jjj2pw
Enrollment
Unknown
Registered
2022-08-23
Start date
2022-03-01
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adenomyosis

Interventions

Experimental group: total venous anesthesia technique (TVA), with 30members will consist of general anesthesia through continuous infusion of propofol and remifentanil, guided by goals through monitor
E03.155.308

Sponsors

Universidade Estadual de Campinas
Lead Sponsor
Universidade Estadual de Campinas
Collaborator

Eligibility

Sex/Gender
Female
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Women; Older than 18 years; Laparoscopic gynecological surgery requiring steep Trendelemburg positioning; Pelvic oncologic surgery requiring steep Trendelenburg positioning; Accept to participate in the study.

Exclusion criteria

Exclusion criteria: Surgical procedure expected to take less than 120 minutes; Ocular pathologies that prevent the measurement of the optic nerve sheath diameter; History of intracranial hypertension; Active neurological diseases; History of transient ischemic attack; Presence of carotid disease; cerebral edema; Glaucoma

Design outcomes

Primary

MeasureTime frame
Measurement of the optic nerve sheath diameter through ultrasound. The assessment will be performed using a portable ultrasound device and linear transducer (6 - 13 MHz), which will be positioned over the eyeball with closed eyelids, a layer of gel and without manual pressure. Transducer angulation adjustments will be necessary to obtain the best contrast image in the axial plane between the retrobulbar adipose tissue and the vertical hypoechoic band, representing the optic nerve. The measurement will be performed three millimeters posterior to the optic disc in both eyes and the average of these measurements will be used as data. It is expected that the total venous anesthesia group will present lower increases in the DBNO measurement compared to balanced anesthesia—

Secondary

MeasureTime frame
Patients in the intervention group will have lower scores of pain, nausea and vomiting (PONV), agitation, mental confusion, drowsiness and delirium—

Countries

Brazil

Contacts

Public ContactAyrton Teixeira

Universidade Estadual de Campinas

abteix@gmail.com+55(19)3521-9560

Outcome results

None listed

Source: REBEC (via WHO ICTRP)