Lung Ultrasound for the Detection of Pulmonary Atelectasis in the Perioperative Period

Medical University of Vienna

Status: Active, not recruiting

Conditions: Postoperative Pulmonary Atelectases

Treatments: Device: Electric impedance tomography; Device: Ultrasound of the lungs

Study type: Observational

Funder types: Other

Identifiers

NCT02121275

LUS

Details and patient eligibility

About

Atelectases (collapsed lung areas) of 15-20% of total lung occur in up to 90% of patients who are anaesthetized and intubated. The goal of the present prospective study is to detect atelectatic areas in the perioperative period in the lungs of patients undergoing elective laparoscopic surgery non-invasively and without x-ray exposure. Results of lung ultrasound (LUS) as the experimental method will be compared to the results of Electrical Impedance Tomography (EIT) as the reference technique for the detection of atelectasis. A device for peripheral Oxygen saturation measurement (MASIMO Radical-8) will detect changes in ventilation. The investigators want to confirm or disprove former findings of the appearance of intraoperative atelectases and to prove that ultrasound is a valid tool for detection of atelectases.

Enrollment: 25 patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Male or female,
• age 18 - 75
• BMI < 30
• Laparoscopic operation

Exclusion criteria

• Pregnancy
• Pulmonary infection
• Chronic pulmonary diseases
• Morbid Obesity

Trial design

25 participants in 1 patient group

Laparoscopic surgery

Description:

Patients undergoing laparoscopic surgery under general anaesthesia, patients undergo ultrasound of the lungs and electric impedance tomography at 4 times during anaesthesia

Treatment:

Device: Ultrasound of the lungs

Device: Electric impedance tomography