The effect of inspired oxygen concentration on postoperative pulmonary atelectasis in obese patients undergoing laparoscopic cholecystectomy. A random

The effect of inspired oxygen concentration on postoperative pulmonary atelectasis in obese patients undergoing laparoscopic cholecystectomy. A randomized-controlled double-blind study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

PACTR

Registry ID

PACTR201802003138123

Enrollment

Registered

2018-02-22

Start date

2017-06-18

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Digestive System Surgery anesthesia Anaesthesia

Interventions

oxygen

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: ASA I-II, of both sexes, aged 20-60 years, and BMI < 30 kg/m2 scheduled for elective laparoscopic cholecystectomy

Exclusion criteria

Exclusion criteria: patient refusal to be included in the study, history of current symptoms of acute or chronic pulmonary disease, history of current symptoms of cardiac disease, fever or infection and patients who need open cholecystectomy because of a surgical cause

Design outcomes

Primary

Measure	Time frame
pulmonary atelectasis determined by CT scan	—

Secondary

Measure	Time frame
pulmonary atelectasis determined by X-ray	—

Countries

Egypt

Contacts

Public Contactmahmoud mohammed

mahmsaad@yahoo.com00201004986145

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Aug 9, 2026