English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Background  The median age at presentation for dogs with patent ductus arteriosus ( PDA ) is <6 months of age, and closure is associated with a decrease in heart size and increased survival time, which are not well described in older dogs.    Objectives  To describe the clinical characteristics of dogs with  PDA  ≥5 years of age at the time of presentation to a veterinary referral hospital.    Animals  35 client‐owned dogs.    Methods  Retrospective case series.    Results   PDA  was diagnosed at a median age of 7.4 years (range, 5.1–12.3 years). Females represented 23/35 (65.7%) of the patients. Concurrent heart disease included degenerative mitral valve disease ( DMVD ; 13), arrhythmias (11), pulmonary hypertension (7), and other congenital defects (2). Cardiomegaly was documented in the majority of dogs consisting of left ventricular enlargement (91%) and left atrial enlargement (86%). Median vertebral heart size in 24 dogs was 12.9 (range, 10.7–18.2). The  PDA  shunt direction was left‐to‐right in 33 and bidirectional in 2 dogs. Closure was performed in 26 dogs, including 4 with pulmonary hypertension. In 10 dogs receiving furosemide pre‐operatively for management of heart failure, furosemide was discontinued (8) or the dosage decreased (2) at the time of discharge.    Conclusions and Clinical Importance  Adult dogs can present with a left‐to‐right shunting  PDA  that results in cardiomegaly and clinical signs that can improve or resolve with  PDA  closure. This improvement is also apparent in dogs with  PDA  complicated by  DMVD . Pulmonary hypertension that does not result in complete right‐to‐left shunting should not be considered a contraindication to closure.

Clinical Characteristics of Adult Dogs More Than 5 Years of Age at Presentation for Patent Ductus Arteriosus