publication . Other literature type . Article . 1994

Re-evaluation of the left atrial to aortic root ratio as a marker of patent ductus arteriosus.

P Iyer; N Evans;
Open Access English
  • Published: 01 Mar 1994
Abstract
The aim of this study was to re-examine the accuracy of the left atrial aortic root ratio (LA:Ao) as a marker of significant patent ductus arteriosus (PDA) in the preterm infant by comparison with direct Doppler echocardiographic assessment. Fifty six infants (< 1500 g) had 463 serial echocardiograms. Firstly the LA:Ao was measured, then the duct was imaged and classified as wide open, restricting, or closed according to two dimensional and Doppler criteria. Probability analysis was performed to test the ability of the LA:Ao to discriminate between a wide open PDA and a restricting or closed duct. Mean LA:Ao was 1.17 and 1.21 when the duct was respectively close...
Subjects
free text keywords: Research Article, Obstetrics and Gynaecology, Pediatrics, Perinatology, and Child Health, General Medicine, Ductus arteriosus, medicine.anatomical_structure, medicine, Shunt (electrical), Heart atrium, Aortic root, Cardiology, medicine.medical_specialty, Internal medicine, business.industry, business, Duplex ultrasonography, Left atrial, Likelihood ratios in diagnostic testing, Congenital disease
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publication . Other literature type . Article . 1994

Re-evaluation of the left atrial to aortic root ratio as a marker of patent ductus arteriosus.

P Iyer; N Evans;