Related Experiment Video
Updated: Aug 23, 2026
Closure of a Patent Foramen Ovale (PFO): An Intervention Sequence
Published on: December 23, 2022
Minimally invasive patent ductus arteriosus occlusion in 5 dogs
Nicolas Borenstein1, Luc Behr, Valérie Chetboul
1CERA-IMM Recherche, Institut Mutualiste Montsouris, Paris, France. nicolas.borenstein@imm.fr
Objective:
To report a technique for minimally invasive occlusion of patent ductus arteriosus (PDA) and outcome in 5 dogs.
Study Design:
Clinical cases.
Animals:
Five, 4-6-month-old, dogs with PDA.
Materials And Methods:
Titanium ligating clips were used for PDA closure in all dogs. Three dogs had video-enhanced mini-thoracotomy PDA occlusion. Two other dogs had thoracoscopic PDA occlusion using a custom-designed thoracoscopy clip applicator.
Results:
Thoracoscopic PDA occlusion was successful in both dogs in which it was attempted. Complete PDA closure was achieved in 4 dogs. Three months after surgery, the largest dog had residual ductal flow that hemodynamically was insignificant.
Conclusions:
Although technically demanding, minimally invasive PDA occlusion is a safe and reliable technique in dogs. Preoperative measurement of the diameter of the PDA is crucial to determine if complete closure with metal clips can be achieved.
Clinical Relevance:
Minimally invasive PDA occlusion should be considered as an alternative to occlusion via conventional thoracotomy.
