Hypoxia in single lung ventilation versus two lung ventilation in video assisted lung surgeries

Incidence of hypoxia in single lung ventilation by double lumen endotracheal tube "of choice in lung surgeries" versus incidence of hypoxia in two lung ventilation by conventional single lumen endotracheal tube "intermittent two lung ventilation"

Inclusion Criteria:

• Age group: Adult patients from age of 21 years to 60 years
• Sex: Both sexes
• ASA Classification: patients with ASA classification II, III.
• Elective lung surgeries using video assisted thoracoscopic surgeries.

Exclusion Criteria:

• Patients refuse to give informed consent.
• ASA Classification: ASA IV.
• Failure of thoracoscopic surgeries and continue as open thoracotomy
• Patients with ischemic heart diseases, where hypoxemia might be preexisting, or patient be more vulnerable to hypoxemia whatever the technique or time of hypoxia.
• Emergency lung surgeries.
• Patients underwent previous lung surgeries of any cause.
• Patients with pathology to the non-operated side.

All study data will be open to other researchers

After finishing the study by the end of August 2021

For any medical student or staff interested in topic without any other considerations

The patients will not know whether they are in the first or second group