Abstract
Article: Addition of Subdiaphragmatic Vessels in Evaluation of Hemodynamically Significant Patent Ductus Arteriosus in Premature Infants
Authors: Joy Guthrie, PhD, ACS, RDMS, RDCS, RVT, FSDMS, FASE
Category: Cardiac (Fetal) [FE]
Credit: 0.75 SDMS CME Credit
Objectives: After studying the article entitled “Addition of Subdiaphragmatic Vessels in Evaluation of Hemodynamically Significant Patent Ductus Arteriosus in Premature Infants,” you will be able to:
Discuss the use of echocardiography in the assessment of patent ductus arteriosus (PDA)
Explain the PDAM score
Define the use of Doppler of the subdiaphragmatic vessels in the evaluation of hemodynamically significant PDA
For the past decade, which of the following has been the gold standard for diagnosis of a PDA in neonates? Obstetric sonography EKG Echocardiography CT angiogram
The PDAM score is used to detect: Respiratory distress syndrome in preterm infants Hemodynamically significant PDAs in preterm infants Respiratory distress syndrome in term infants Hemodynamically significant PDAs in term infants
Which echocardiographic criteria are included in the calculation of the PDAM score? Right atrial diameter Right ventricle diameter Left atrial diameter Left ventricle diameter
What is the cutoff PDAM score for a hemodynamically significant PDA that needs treatment? >5.1 <5.1 >4.1 <4.1
A vascular steal: Shows high diastolic waveforms Has no effect on organs Occurs when flow is redirected from organs Only occurs with PDAs
A Doppler waveform that drops to baseline prior to the end of the systolic phase of the cardiac cycle is known as: Steal Reversed Stenotic Staccato
Subdiaphragmatic vessel interrogation with spectral Doppler: Provides quantitative information regarding whether a vascular steal is occurring due to a PDA Does not improve diagnostic accuracy when used in conjunction with echocardiography Shows how systolic flow relates to function Includes only superior mesenteric artery assessment
Footnotes