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Abstract
Methods Air was introduced into 5 hemithoraces (HTs) of 3 PPV porcine models. An anaesthesiologist experienced in US, identified LPs during the inspiratory phase and delineated the topography and extension of the PTX with subcutaneous needles. This was compared with the points where the lung detached from the inside of the chest wall identified by CT. The distance from sternum to the LP (S-LP) and PTX area were measured in two preset levels.
Highlights
In trauma patients, ultrasound (US) is twice as sensitive as supine chest x-ray (CXR) in detecting occult pneumothorax (OPTX)[1]
US proved accurate in identifying the lung point” sign (LP)
PTX size correlated with the lateral LP position
Summary
Ultrasound (US) is twice as sensitive as supine chest x-ray (CXR) in detecting occult pneumothorax (OPTX)[1]. LP localization correlates with size and extension of OPTX [3], but uncertainty exists in patients on positive pressure ventilation (PPV)
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