EchoBridgeMD Evidence Update #1: Yet Another Study Questions the Optimal Location for Chest Compressions

Yet another study adds to growing evidence that guideline-recommended hand placement for chest compressions may not correspond to the optimal anatomic target.

In this prospective ultrasound study of 152 adults, investigators used transthoracic echocardiography to identify the left ventricular outflow tract (LVOT) and the ideal area of maximal compression (iAMC), then mapped these structures onto standardized external chest-wall coordinates relative to the sternum.

The LVOT was located a median of only 1.5 cm from the sternum, while the iAMC was 4 cm away. The guideline-recommended compression zone therefore frequently overlaid the LVOT rather than the area of maximal LV compression.

Although this study does not demonstrate that changing hand position improves clinical outcomes, it raises an important physiologic question: Are standard chest compressions optimally positioned to generate forward blood flow during CPR?

📖 Martinez L, Hansen A, Patel M, et al. Where Should We Compress? Ultrasound Identification of the Ideal Area of Maximal Compression for CPR. Resuscitation. 2026.

https://pubmed.ncbi.nlm.nih.gov/42492621/

🔗 Free subscription — receive future EchoBridgeMD educational content by email:

https://www.echobridgemd.com/blog