Diagnostic Values of Lung Ultrasound for Perioperative Atelectasis

Lung ultrasound offers a novel, reliable and radiation-free tool for diagnosing perioperative atelectasis and evaluating its severity in adult patients undergoing general anesthesia in the operating room.

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Key information

Conditions

Postoperative Pulmonary Atelectasis Lung Diseases Pulmonary Atelectasis Respiratory Tract Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

The Third Xiangya Hospital of Central South University, Changsha, Hunan, China

About this study

Atelectases occur in up to 90% of patients undergoing general anesthesia and intubation. The aim of the present observational study was designed to further to evaluate the diagnostic performance of lung ultrasound (LUS) in detection of postoperative atelectasis in adult patients undergoing general anesthesia. Results of LUS as the experimental method will be compared to the results of computed tomography (CT) as the reference technique for the detection of atelectasis. The investigators want to confirm former findings of the appearance of perioperative atelectases and to prove that ultrasound is a valid tool for detection of atelectases.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Aged 18 years and older;
American Society of Anesthesiologists (ASA) physical status within class I-III;
Scheduled for selective neurosurgical operation with general anesthesia;
Need of mechanical ventilation more than 2 hours;

Exclusion criteria

Patients decline to participate;
Pregnancy;
Previous thoracic procedures (thoracic drain, thoracotomy, thoracoscopy);
A history of pulmonary diseases within last two weeks with abnormal manifestation of lung CT (pulmonary parenchyma or/and interstitial lesions );
Pneumothorax or subcutaneous emphysema during peri-operation;
Patients with a body mass index (BMI) more than 30 kg/m2;
Emergency operation.

Treatment and study plan

Lung ultrasound

Device

lung ultrasound investigations were performed right before and after the surgical procedure.

thoracic computed tomography

Radiation

thoracic CT were performed within one hour after the LUS investigation

Primary outcomes

Correlation between manifestations of atelectasis in lung ultrasound and in thoracic computed tomography.

Time frame: From 5 minutes before induction of anesthesia to 1 hour after the surgery

Measurements of lung ultrasound are performed before induction of anesthesia and immediately after finishing the surgery. Lung CTs are performed the day before surgery and within 1 hour after surgery. Outcome measure: comparison of atelectases by lung ultrasound (experimental method) versus by computed tomography (standard method)

Sponsors and collaborators

Lead sponsor

The Third Xiangya Hospital of Central South University

Other

Collaborators

Xiangya Hospital of Central South University

Registry information

Official study title

Diagnostic Performance of Lung Ultrasound for Perioperative Atelectasis in Adult Patients Undergoing General Anesthesia

Important dates

Study start: 2015
Primary completion: 2015
Study completion: 2015
First posted: Feb 4, 2015
Registry last updated: Apr 21, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed