The effect of two levels of end exhaustion carbon dioxide pressure on the cognitive status of patients undergoing cataract surgery

A comparative study of two different levels of end exhaustion carbon dioxide pressure with cognitive status of patients after cataract surgery in patients referred to Faiz Hospital in 2017-18

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20130311012782N36

Enrollment

240

Registered

2019-09-15

Start date

2019-09-22

Completion date

Unknown

Last updated

2019-10-07

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

Conditions

Cataract. Unspecified open-angle glaucoma

Interventions

Intervention 1: Intervention group1: Level of End-Tidal Carbon Dioxide is set between 35-40 mmHg. Intervention 2: Intervention group2: Level of End-Tidal Carbon Dioxide is set between 40-45 mmHg.

Eligibility

Sex/Gender

All

Age

65 Years to No maximum

Inclusion criteria

Inclusion criteria: Consent to participate in the study Candidate for cataract surgery ander general anesthesia age above 65 years American Society Anesthesiologist:1,2

Exclusion criteria

Exclusion criteria: History of allergy to anesthesial drugs History of moderate or severe psychological disorders

Design outcomes

Primary

Measure	Time frame
Cognitive Disorder. Timepoint: Until 24 hours after surgery. Method of measurement: Mini- Mental Status Examination check list.	—

Secondary

Measure	Time frame
Hemodynamic Disorder. Timepoint: Every 15 minutes during operation and recovery. Method of measurement: Pulse oximetry.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactNajmeh Askarianfard

Esfahan University of Medical Sciences

Na.askarianfard93@yahoo.com+98 31 3669 2174

Outcome results

None listed

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