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Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography
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Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography

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[Echocardiographic diagnosis of the aorto-pulmonary window]

C Apitz1, R Kaulitz, L Sieverding

  • 1Abteilung Kinderheilkunde II (Kardiologie, Intensivmedizin, Pulmologie), Universitätsklinikum Tübingen. christian.apitz@med.uni-tuebingen.de

Ultraschall in Der Medizin (Stuttgart, Germany : 1980)
|December 6, 2006
PubMed

Insights

Echocardiography effectively diagnoses aortopulmonary windows, revealing characteristic left heart dilation and shunting. Careful assessment is crucial due to frequent associated cardiac anomalies.

Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Medical Imaging

Background:

  • Aortopulmonary window is a rare congenital cardiac malformation.
  • It involves a connection between the ascending aorta and the main pulmonary artery.
  • Associated cardiovascular malformations are common.

Purpose of the Study:

  • To report the echocardiographic features of aortopulmonary window.
  • To assess the diagnostic limitations of echocardiography for this condition.
  • To highlight the importance of identifying associated anomalies.

Main Methods:

  • Retrospective analysis of 5 consecutive patients treated between 7/2000 and 11/2005.
  • Utilized 2D-echocardiography, pulsed-wave Doppler, and continuous-wave Doppler.
  • Echocardiography was used to visualize the window and assess associated defects.

Main Results:

  • Characteristic echocardiographic feature: dilation of the left atrium and ventricle due to left-to-right shunt.
  • The aortopulmonary window was visualized in all patients via 2D-echocardiography.
  • Doppler findings included diastolic negative flow in the descending aorta and systemic arteries.
  • All patients had significant associated cardiovascular malformations accurately diagnosed by echocardiography.
  • Coronary anomalies were noninvasively excluded in all cases.

Conclusions:

  • Echocardiography is the primary diagnostic method for aortopulmonary window.
  • Systematic investigation is essential due to frequent, significant associated cardiac anomalies.
  • Cardiac catheterization is reserved for cases with unclear coronary anatomy or pulmonary hypertension in older patients.
Abstract

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