What question did this study set out to answer?

To evaluate the efficacy and anatomical fit of a modified Amplatzer duct occluder specifically designed with an angled retention disk for patent ductus arteriosus closure.

July 25, 2001Catheterization and Cardiovascular Interventions

Experimental evaluation of a modified Amplatzer duct occluder

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Authors

HKHuafu KongWestern University XGXiaoping GuRutgers, The State University of New Jersey JBJohn L. BassUniversity of Arizona

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Implication

Animal study demonstrates successful percutaneous ductus arteriosus occlusion in dogs, indicating the modified angled disk prevents aortic protrusion and pressure gradients.

Key Points

To evaluate the efficacy and anatomical fit of a modified Amplatzer duct occluder specifically designed with an angled retention disk for patent ductus arteriosus closure.
Percutaneous closure was evaluated in 10 dogs with surgically created aortopulmonary shunts mimicking patent ductus arteriosus anatomy.
The prosthesis, consisting of a polyester-filled cylindrical frame and a 32-degree angled retention disk, was delivered via a 6 Fr Teflon introducing sheath.
Postmortem assessments were performed at 1 to 3 months to evaluate neoendothelial coverage and device orientation.
Complete shunt occlusion was achieved in 9 of 10 animals, with 1 animal dying prior to device placement.
Transient hemolysis developed in 1 dog, while no devices protruded into the aortic lumen across all successful implants.
Postmortem analysis at 1 to 3 months revealed the retention disk was fully covered by smooth neoendothelium without producing an aortic pressure gradient.

Cite This Study

Kong et al. (2001) studied this question.

synapsesocial.com/papers/6a963ea065cd0d1d26bb6a2a https://doi.org/10.1002/ccd.1225

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Implication

Animal study demonstrates successful percutaneous ductus arteriosus occlusion in dogs, indicating the modified angled disk prevents aortic protrusion and pressure gradients.

Experimental evaluation of a modified Amplatzer duct occluder

Discussion

Member takes

Implication

Key Points

Cite This Study

Experimental evaluation of a modified Amplatzer duct occluder

Discussion

Member takes

Implication

Key Points

Cite This Study

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