The effect of oxygen on nausea and vomiting

The effect of supplemental oxygen during the procedure on postoperative nausea and vomiting in patients undergoing cataract surgery

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT2016020126300N1

Enrollment

200

Registered

2016-09-07

Start date

2016-04-20

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

Condition 1: postoperative nausea and vomiting. Condition 2: cataract. Postprocedural disorder of digestive system, unspecified cataract,unspecified

Interventions

Intervention 1: Group A: Receiving 30 percent oxygen during surgery. Intervention 2: Group B: Receiving 80 percent oxygen during surgery.

Treatment - Other

Group A: Receiving 30 percent oxygen during surgery

Group B: Receiving 80 percent oxygen during surgery

Eligibility

Sex/Gender

All

Age

40 Years to 70 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria:All patients 40-70 years old; ASA(American Society of Anesthesiologists) Class 1,2 Exclusion criteria:History of postoperative nausea and vomiting; motion sickness; obesity; pregnancy; breastfeeding; smoking; use of antiemetic drugs within 24 hours prior to surgery; migrain headache; duration of the surgery more than one houre; diabetes melitus.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Nausea and vomiting. Timepoint: during the first 6 hours after surgery. Method of measurement: Observation and assessment with statistical methods.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMahshid Ashrafzadeh

Zahedan University of Medical Sciences

mahshidashrafzadeh@zaums.ac.ir+98 54 3348 0946

Outcome results

None listed

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