Purpose: Transesophageal echocardiography (TEE) may cause an increase in intracerebral pressure (ICP). Data are currently lacking.
Methods: Monocentric observational study. Continuous monitoring of ICP, cerebral perfusion pressure (CPP) and mean arterial pressure (MAP) before, during, and after TEE. The first 10 patients were positioned in the left lateral position (left lateral tilt group = LLTG). Further patients were examined in the supine position (supine position group = SPG).
Results: A total of 20 patients with a median age of 59 ± 20.1 years were included in the study. The median baseline ICP was 9 ± 4.3 mmHg in LLTG and 4 ± 5.1 mmHg in SPG. Only LLTG showed a significant increase in ICP from baseline to TEE (p = 0.013). When comparing both groups, a significantly longer procedure duration was found in the positioning group (LLTG = 14.5 min versus SPG = 9.5 min; p = 0.002).
Conclusion: This study is the first to investigate the effect of transesophageal echocardiography on ICP and CPP. Our data demonstrated a temporary increase in ICP during TEE probably caused by lateral positioning the patients. For patients at risk with critically elevated ICP values, TEE should only be performed in the supine position.
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