[Peroperative detection of embolizing material in the heart. The importance of peroperative transesophageal echocardiography].

During operation, 102 patients were continually monitored for heart function using transoesophageal echocardiography. Echo-contrast particles (mostly of mi-minute echo-contrast particles were also monitored through the right and left hearts. The most frequent and significant evidence was found in the right heart in the left ventricle. The authors discuss the etiolo-less frequent and less significant in abdominal operations (57%). In 27% patients undergoing chest surgery, minute echo-contrast particles were also monitored in the left ventricle. The authors discuss the etiology (fat droplets, marrow particles, thrombotic material, air) as well as the clinical significance of the monitored findings. With the exception of orthopedic patients, where even large particles were sporadically observed to pass through, these findings are of no clinical significance.