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Role of Lung Ultrasound Imaging for Intraoperative Monitoring of Atelectasis During Laparoscopic Surgery

NCT01749436 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2013-09-16

No results posted yet for this study

Summary

General anesthesia results in the development of atelectasis in the dependent areas of the lungs exposing patients to an increased risk of hypoxemia. During laparoscopic procedures, pneumoperitoneum increases already present atelectasis.

Several methods have been suggested to reduce the impact of atelectasis during surgery. However, few intraoperative modalities for the diagnosis and monitoring of atelectasis are available. Lung ultrasound imaging is a promising non-invasive, non-radiant, portable and easy to use tool that as yet to be studied in the intraoperative setting.

This observational study will aim to clarify the role of lung ultrasound imaging during laparoscopic surgery for the diagnostic and monitoring of atelectasis.

This study is designed to:

* Demonstrate a link between the lung ultrasound aeration score, the partial pressure of oxygen in arterial blood (PaO2) / fraction of inspired oxygen (FiO2) ratio and the oxygenation index.
* In the event of intraoperative desaturation, study the impact of positive end-expiratory pressure (PEEP) and/or increase of FiO2 on the aeration score.
* Study the impact of pain on diaphragmatic function and the aeration score.

Our hypothesis is that lung ultrasound imaging allows detection of lung aeration changes associated with induction of general anesthesia, pneumoperitoneum, emergence from anesthesia and changes occurring during the stay in the recovery room.

Conditions

  • Atelectasis

Interventions

OTHER

Lung ultrasound imaging examinations

Lung ultrasound examinations performed at different time-points immediately before surgery, during surgery under general anesthesia and after surgery in the recovery room to detect and monitor atelectasis related to laparoscopic procedures.

Sponsors & Collaborators

  • Centre de Recherche du Centre Hospitalier de l'Université de Montréal

    collaborator OTHER

  • Centre hospitalier de l'Université de Montréal (CHUM)

    lead OTHER

Principal Investigators

  • Martin Girard, MD, FRCPC · Centre hospitalier de l'Université de Montréal (CHUM)

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-04-30
Primary Completion
2013-09-30
Completion
2013-09-30

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01749436 on ClinicalTrials.gov