Which intraoperative transesophageal echocardiography (TEE) view is best for monitoring myocardial ischemia?

Which intraoperative transesophageal echocardiography (TEE) view is best for monitoring myocardial ischemia?

• A. Mid-esophageal 4 chamber view
• B. Transgastric mid-papillary left ventricular short axis view
• C. Mid-esophageal long axis view
• D. Mid-esophageal 2 chamber view

Answer: (B)

Monitoring myocardial ischemia with intraoperative TEE relies on spotting new regional wall motion abnormalities of the left ventricle. The transgastric mid-papillary short-axis view is best for this because it provides a cross-sectional, circular view of the LV at the level of the papillary muscles, allowing you to assess wall motion around the entire circumference in one image. Ischemia typically causes hypokinesia or akinesia in specific myocardial segments corresponding to a affected coronary territory, and the short-axis view makes these regional abnormalities most apparent. Other mid-esophageal views are useful for overall function or specific walls, but they don’t offer the same comprehensive circumferential assessment as the short-axis view, making them less sensitive for rapidly detecting ischemia across multiple LV segments.

Monitoring myocardial ischemia with intraoperative TEE relies on spotting new regional wall motion abnormalities of the left ventricle. The transgastric mid-papillary short-axis view is best for this because it provides a cross-sectional, circular view of the LV at the level of the papillary muscles, allowing you to assess wall motion around the entire circumference in one image. Ischemia typically causes hypokinesia or akinesia in specific myocardial segments corresponding to a affected coronary territory, and the short-axis view makes these regional abnormalities most apparent.

Other mid-esophageal views are useful for overall function or specific walls, but they don’t offer the same comprehensive circumferential assessment as the short-axis view, making them less sensitive for rapidly detecting ischemia across multiple LV segments.