title: Intraoperative transesophageal echocardiographic assessment of left ventricular Tei index in congenital heart disease.
abstract: BACKGROUND
  Use of the Tei index has not been described to assess myocardial function before or after surgery in pediatric patients. This study was designed to evaluate the left ventricular (LV) function using the Tei index pre- and post-cardiopulmonary bypass in patients with lesion that result in a volume loaded right ventricle (RV).
  
  
  METHODS
  Retrospective data on 55 patients who underwent repair of a cardiac defect were analyzed. Patients with volume overload RV (n = 15) were compared to patients without volume overload but with other cardiac defects (n = 40). We reviewed pre- and post-operative LV myocardial performance index (Tei index). Tei index was obtained from transesophageal Doppler echocardiogram.
  
  
  RESULTS
  Patients with right heart volume overload, the mean preoperative Tei index was 0.6, with a postoperative mean decrease of 0.207 (P = 0.014). Patients without right heart volume overload, the mean preoperative Tei was 0.48 with no significant postoperative change (P = 0.82).
  
  
  CONCLUSIONS
  Pre- and post-operative transesophageal echocardiogram assessment provides an easy and quick way of evaluating LV function intra-operatively using LV Tei index. Preoperative LV Tei index was greater in the RV volume overload defects indicating diminished LV global function. This normalized in the immediate postoperative period, implying an immediate improvement in LV function. In patients without right heart volume load, consist of other cardiac defects, demonstrated no changes in the pre- and post-operative LV Tei. This implies that LV function was similar after the surgery.
authors: Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA.
authors: Shanthi
authors: S
authors: Sivanandam
authors: Andrew
authors: A
authors: Wey
authors: James
authors: J
authors: St Louis
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D015150:Echocardiography, Doppler / Q000379:methods; D017548:Echocardiography, Transesophageal / Q000379:methods*; D005260:Female; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging* / Q000601:surgery*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D016343:Monitoring, Intraoperative / Q000379:methods*; D012189:Retrospective Studies; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging*; D016277:Ventricular Function, Left; D055815:Young Adult