J Med Assoc Thai 2000; 83 (11):46

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Utility of Intraoperative Transesopha3eal Echocardiogram in Congenital Heart Disease
Durongpisitkul K Mail, Soongswang J , Sriyoschati S , Ponvilawan S , Suptaweesin T , Prakanrattana U , Kangkagate C

Intraoperative transesophageal echocardiogram (TEE) has improved the perioperative
outcome in adult patients. The purpose of the current study was to assess the benefit of intraoperative
TEE in patients with congenital heart disease undergoing surgical correction (repair). The results
of the patients who had consecutively undergone intraoperative TEE during their congenital heart
surgery between January 1998 to June 2000 were reviewed. There were 104 patients (whose ages
ranged from one week old to 50 years old (median 5 years old) and their weights from 3 kg to 79 kg
(median 15 kg). A significant impact was said to have occurred if these findings prompted a change
in surgical procedure following a prebypass study or rebypass for repair of a residual defect.
Prebypass TEE had a significant impact in seven patients (6.7%). TEE could be used as a guide to
help repair in three patients. The postbypass TEE examination had a significant impact in 15 patients
(14.4%). Of these 15 patients, eight were detected primarily by TEE examination. The group of
patients in whom TEE had the most significant impact was in patients who had surgery related to
the repair of the atrioventricular valve (complete or partial atrioventricular (A V) canal repair,
Ebstein's anomaly; 9 out of 22 patients; 41
A less significant impact was found in surgery for
other complex congenital defects (single ventricle or complete transposition of great arteries;
eight out of 46 patients; 17.4%). TEE had limited impact in simple congenital lesion. Intraoperative
TEE is valuable in the perioperative care of patients with congenital heart defects. We found the
most benefit in patients with complete or partial AV canal and Ebstein's anomaly.
Key words : Intraoperative Transesophageal Echocardiogram, Congenital Heart Disease

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