Transfemoral approach to patent ductus arteriosus occlusion using ACDO in a dog with complex surgical history

Authors

• Nawat Sannamwong, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Hataichon Owatdhumma, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Kornrawee Tharavanij, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Thitinan Tangarsasilp, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Nardtiwa Chaivoravitsakul, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Kongthit Horoongruang, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Patmanachatr Bunnag, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Nakkawee Saengklub, Faculty of Pharmacy, Mahidol UniversityFollow
• Krishaporn Kradangnga, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Sirilak Disatian Surachetpong, Faculty of Veterinary Science, Chulalongkorn UniversityFollow
• Anusak Kijtawornrat, Faculty of Veterinary Science, Chulalongkorn UniversityFollow

Abstract

A five-year-old spayed female Welsh Corgi weighing 12.4 kg presented with exercise intolerance and was diagnosed with a patent ductus arteriosus (PDA). Due to signs of left-sided volume overload, the dog was initially managed with oral pimobendan and was subsequently referred to the Small Animal Teaching Hospital at Chulalongkorn University for further evaluation and intervention. Upon presentation, the patient was bright, alert, and responsive, with a body condition score of 6 out of 9 and normal muscle condition. The mucous membranes were pink and moist, with a capillary refill time of 1 to 2 seconds. A continuous heart murmur was detected (heart rate: 120 bpm), accompanied by normal lung sounds and mild tachypnea (respiratory rate: 60 bpm) without signs of dyspnea. Femoral pulses were strong with no deficits. Echocardiography confirmed a left-to-right shunting PDA along with mild mitral regurgitation and left-sided volume overload. Thoracic radiographs showed left atrial bulging (VHS 10.3, VLAS 2.5) and a prominent main pulmonary artery. Cardiac-gated computed tomography revealed an anomalous vessel measuring 1.3 cm in length, with a ductal diameter of 1.0 cm at the aortic origin, tapering to 0.4 cm at the pulmonary artery insertion. A prior attempt at surgical ligation was unsuccessful due to dense fibrous adhesions and intraoperative hemorrhage. Consequently, transcatheter occlusion was chosen as the preferred intervention. Under general anesthesia, a transfemoral approach was utilized, employing a 7 Fr introducer sheath inserted into the right femoral artery. Fluoroscopic angiography confirmed the PDA anatomy, and a 7 mm Amplatz Canine Duct Occluder (ACDO) was successfully deployed, resulting in complete occlusion. Post-procedural echocardiography confirmed successful PDA closure and a reduction in cardiac size. No major procedural complications were noted. Minor postoperative events included mild localized swelling at the surgical site on the femoral area and a transient localized allergic skin reaction, both of which resolved without incident. This case underscores the effectiveness and safety of transfemoral ACDO deployment as a minimally invasive option for dogs with PDA, especially when surgical correction is not feasible.

DOI

10.56808/2985-1130.3928

First Page

1

Last Page

9

Recommended Citation

Sannamwong, Nawat; Owatdhumma, Hataichon; Tharavanij, Kornrawee; Tangarsasilp, Thitinan; Chaivoravitsakul, Nardtiwa; Horoongruang, Kongthit; Bunnag, Patmanachatr; Saengklub, Nakkawee; Kradangnga, Krishaporn; Disatian Surachetpong, Sirilak; and Kijtawornrat, Anusak (2026) "Transfemoral approach to patent ductus arteriosus occlusion using ACDO in a dog with complex surgical history," The Thai Journal of Veterinary Medicine: Vol. 56: Iss. 3, Article 15.
DOI: https://doi.org/10.56808/2985-1130.3928
Available at: https://digital.car.chula.ac.th/tjvm/vol56/iss3/15