|Table of Contents|

Clinical values of transthoracic echocardiography combined with right heart contrast echocardiography in the right-to-left shunt of patent foramen ovale

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《第三军医大学学报》[ISSN:1000-5404/CN:51-1095/R]

Issue:
2017年第16期
Page:
1648-1653
Research Field:
临床医学
Publishing date:

Info

Title:

Clinical values of transthoracic echocardiography combined with right heart contrast echocardiography in the right-to-left shunt of patent foramen ovale

Author(s):

WANG Wenting HUANG Haiyun LIU Qiangwei YAO Qing SONG Zhiyuan GUO Yanli

Department of Ultrasonography, Department of Cardiology, Chongqing Institute of Interventional Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China

Keywords:

patent foramen ovaleright heart contrast echocardiographytransthoracic echocardiographytransesophageal echocardiographytranscatheter closure

PACS:
R322.11;R540.45;R541.1
DOI:
-
Abstract:

-Objective      To explore the clinical values of transthoracic echocardiography (TTE) combined with right heart contrast echocardiography in the diagnosis of patent foramen ovale (PFO) and to assess the efficacy of transcatheter closure in PFO. Methods     Three hundred and seventythree patients,including 121 cases with unexplained stroke and 252 cases with migraine, who admitted in the cardiological and neurological departments of our hospital from January 2013 to December 2016, and needed to further diagnose in the presence or absence of PFO, were recruited in this study. All patients underwent TTE and right heart contrast echocardiography, and 103 of them underwent transesophageal echocardiography (TEE) voluntarily. Results     ①In the resting state, TTE in 373 patients showed 22 cases with PFO. Next, 103 cases of 351 patients with no PFO detected by TTE received TEE, and the results showed 49 patients with PFO. ②All patients also underwent right heart contrast echocardiography when examined with TTE. The results showed that 186 of 373 cases (49.87%) had varying degrees of right-to-left shunt under the condition of Valsalva maneuver or severe cough [69 cases with mild right-toleft shunt (gradeⅠ), 70 cases with moderate shunt(grade Ⅱ) and 47 cases with severe shunt(grade Ⅲ)]. ③And the examination also showed moderate or severe right-to-left shunts in both 22 cases with PFO confirmed by TTE and 49 cases with PFO confirmed by TEE. ④Finally, 59 patients, having moderate or severe right-to-left shunts confirmed by TTE combined with right heart contrast echocardiography and focal cerebral infarction by MRI, underwent TTE-guided percutaneous transcatheter closure. Right heart contrast echocardiography after 1month closure operation showed that 55 cases had no right-to-left shunts and 4 cases had mild shunts (grade Ⅰ) under the condition of Valsalva maneuver or severe cough. Conclusion     The combination of TTE and right heart contrast echocardiography could not only show the extent of right-to-left shunt in PFO clearly and provide direct basis for PFO clinical treatment, but also be an effective follow-up method after PFO transcatheter closure. It has been an important tool in PFO diagnosis and follow-up examination after transcatheter closure.

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Last Update: 2017-08-23