Why the study?
Does chest CT identify a more accurate surface anatomic landmark for left atrial location compared to the midaxillary line for pulmonary artery wedge pressure measurement?
Does chest CT identify a more accurate surface anatomic landmark for left atrial location compared to the midaxillary line for pulmonary artery wedge pressure measurement?
CT imaging reveals that traditional midaxillary referencing for pulmonary artery catheters is inaccurate, and lateral decubitus positioning provides a more reliable anatomic landmark for the left atrium.
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Questions midaxillary line accuracy for PAWP; leaves open prospective validation of CT-derived landmark before practice change.
Paolella et al. (1988) studied this question.
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