Peer-reviewed veterinary case report
Heart valve leakage after PDA surgery in adult Maltese dog
By Ro, Woong-Bin et al.·Published in Frontiers in veterinary science·2022·Department of Veterinary Internal Medicine, South Korea·View original on PubMed →
PetCaseFinder translated the abstract of this peer-reviewed paper into plain English so pet owners can read it. We do not publish original research — every detail traces back to the citation above. How we work →
Original publication title: Case Report: Aortic Regurgitation of Postocclusion and Long-Term Outcome Following PDA Correction in an Adult Dog.
- Species:
- dog
Plain-English summary
A 9-year-old female Maltese was brought in for severe coughing and trouble exercising due to a previously diagnosed heart condition called patent ductus arteriosus (PDA). Tests showed her heart was enlarged and not pumping well, leading to a significant heart murmur. The vet performed a procedure to close the PDA, which improved her condition, although some issues with blood flow and aortic regurgitation (backward blood flow) remained. Remarkably, the dog showed no clinical signs of illness for 41 months after the procedure, indicating a successful long-term outcome.
People also search for: Maltese coughing exercise intolerance · dog PDA treatment · heart murmur in dogs
Abstract
A 9-year-old intact female Maltese dog was admitted for further evaluation of previously diagnosed patent ductus arteriosus (PDA). The dog showed severe coughing and exercise intolerance. On physical examination, a grade VI/VI continuous heart murmur was auscultated. Thoracic radiography demonstrated cardiomegaly, pulmonary overcirculation, and moderate bronchointerstitial pattern. Echocardiography revealed severe dilation of the left ventricle and atrium, decreased left ventricular contractility, and left-to-right PDA. On electrocardiography (ECG), R amplitude was increased. Computed tomographic angiography revealed type IIA PDA. The serum N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentration was >10,000 pmol/L. Transarterial occlusion was performed and the Amplatz® Canine Duct Occluder was successfully deployed. On echocardiography 48 h after the procedure, aortic regurgitation (AR) and residual ductal flow were noted. Long-term follow-up on clinical signs, physical examination, radiography, echocardiography, ECG, and serum NT-proBNP were evaluated until 30 months after correction of PDA. The clinical indices of physical examination, thoracic radiography, echocardiography, ECG, and serum NT-proBNP concentration were improved, although the postocclusion AR and residual ductal flow persisted. The dog followed up without clinical signs for 41 months following the correction. To our knowledge, this is the first case report to demonstrate quite a long time of follow-up (41 months) in an older dog with transarterial occlusion of PDA with postocclusion AR and residual flow.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/35359672/