Status:

UNKNOWN

Effects of Small-dose S-ketamine on Anesthesia-induced Atelectasis in Anesthetized Patients Accessed by Pulmonary Ultrasound

Lead Sponsor:

Beijing Tiantan Hospital

Conditions:

Atelectasis

Eligibility:

All Genders

18-60 years

Phase:

EARLY_PHASE1

Brief Summary

Background: Atelectasis occurs in the majority of patients with general anesthesia, which can lead to postoperative pulmonary complications (PPCs) and affect the postoperative outcome. However, there ...

Eligibility Criteria

Inclusion

  • Age of 18 - 60 years;
  • American Society of Anesthesiologists (ASA) physical status of I - II;
  • Patients scheduled for urinary, obstetrics and gynecology surgery in supine position or lithotomy position under general anesthesia, and the expected operation time is more than 1 hour;
  • Patients and their authorized surrogates have signed the informed consent form.

Exclusion

  • Patients who have difficulty in applying pulmonary ultrasound, such as chest fractures, surgical history, etc;
  • Patients who have a history of upper respiratory tract infection one month before surgery, or a history of smoking more than 6 packs/year;
  • Preoperative chest X-ray or CT abnormalities, including atelectasis, pneumothorax, pleural effusion or pneumonia;
  • BMI\>30kg/㎡;
  • Expected difficulty in intubation or mask ventilation;
  • Patients with significant increase in intraocular pressure and intracranial pressure before surgery;
  • Patients allergic to S-ketamine, propofol and opioids.
  • Patients with a positive history of psychiatric disorders.

Key Trial Info

Start Date :

March 1 2021

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

March 1 2022

Estimated Enrollment :

100 Patients enrolled

Trial Details

Trial ID

NCT04745286

Start Date

March 1 2021

End Date

March 1 2022

Last Update

February 9 2021

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