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Pupillary Response to Nitrous Oxide Administration in Cataract Surgery

Pupillary Response to Nitrous Oxide Administration in Cataract Surgery under General Anesthesia

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
IRCT
Registry ID
IRCT2016071319470N34
Enrollment
40
Registered
2016-10-20
Start date
2013-03-10
Completion date
Unknown
Last updated
2018-02-22

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

Conditions

Cataract. Senile incipient cataract

Interventions

Control group: After induction of anesthesia oxygen 100% was administered in control group.
Intervention 1: Intervention group: After induction of anesthesia, anesthesia is maintained with Isoflurane and nitrous oxide oxygen (60%-40%) in intervention group. Intervention 2: Control group: Aft
Diagnosis
Intervention group: After induction of anesthesia, anesthesia is maintained with Isoflurane and nitrous oxide oxygen (60%-40%) in intervention group.

Sponsors

Shiraz University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to 80 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: Forty patients with cataract50 to 80 year- old; ASA 1 or 2. Exclusion criteria: patients with obesity (BMI >30); blood pressure above 160/90 mmHg; glaucoma, pseudo exfoliation pupillary adhesions; optical trauma; clear corneal opacity (Leucoma); diabetes and endotracheal intubation more than 30 seconds

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Pupillary diameter measurment. Timepoint: before anesthesia induction, before endotracheal intubation, one and five minutes after intubation. Method of measurement: by pupillometer (Colvard Pupillometer manufactured by OASIS, United States).

Secondary

MeasureTime frame
Blood pressure. Timepoint: before anesthesia induction, before endotracheal intubation, one and five minutes after intubation. Method of measurement: Sphygmomanometer.;Heart rate. Timepoint: before anesthesia induction, before endotracheal intubation, one and five minutes after intubation. Method of measurement: pulsoximeter.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAlireza GhANBARI

Shiraz University of Medical Sciences

alinurse1371@gmail.com+98 36474270

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026