JOURNAL ARTICLE

[Evaluation of right ventricular function of patients with intraoperative device closure of atrial septal defect by ultrasonic Doppler tissue imaging]

Liu-hua Zhang, Wei-hong Xu, Yan Wang, Ai-qin Liu, Chang-yan Lin, Zhi-an Li, Chun Zhang
Zhonghua Yi Xue za Zhi [Chinese medical journal] 2009 June 16, 89 (23): 1627-9
19957511

OBJECTIVE: To study the application of Doppler tissue imaging (TDI) in the assessment of right ventricular function of patients with intraoperative device closure of atrial septal defect (ASD).

METHODS: A total of 48 ASD patients, 18 males and 30 females, were selected for intraoperative device closure. The mean age was 31 +/- 16 years old. Color Doppler echocardiographic instrument (Sonos 4500) was employed to perform the Doppler tissue imaging before and at 3-5 days after operation. The parameters included: (1) Time and peak speed of systolic motion of anterior tricuspid valve annulus (TDI-TS, TDI-PVS), early diastole motion time (TDI-TE) and late diastolic motion time (TDI-TA) and peak speed of early and late diastolic motion (TDI-PVE, TDI-PVA), interval between the early diastolic motion and late diastolic motion (TDI-TE-A); (2) Peak speed of systolic, early diastolic and late diastolic motions of the middle lateral and basic lateral walls of right ventricle.

RESULTS: The TDI-PVS (0.16 +/- 0.05) m/s in post-operation was decreased than TDI-PVS (0.20 +/- 0.04) m/s in pre-operation and TDI-PVA (0.12 +/- 0.03) m/s in post-operation was decreased than TDI-PVA (0.16 +/- 0.02) m/s in pre-operation apparently (P < 0.01). The TDI-TS (231 +/- 36) msec in post-operation were shorter than TDI-TS (265 +/- 24) msec in pre-operation (P < 0.01). Peak spead of Systolic, early diastolic and late diastolic motions of middle lateral and basic lateral walls of right ventricle declined post-operatively (P < 0.01).

CONCLUSION: TDI is an effective method to evaluate the function of right ventricle quantitatively in patients with intraoperative device closure of ASD.

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