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Cor triatriatum dexter in 17 dogs.

K E Nadolny1, H B Kellihan1, B A Scansen2

  • 1Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Dr. Madison, WI 53706, USA.

Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology
|June 9, 2019
PubMed
Summary

Cor triatriatum dexter (CTD) in dogs often occurs with other congenital heart defects, particularly on the right side. Some dogs with CTD may be asymptomatic or have good outcomes after treatment.

Keywords:
AscitesCanineCongenital cardiac diseasePulmonary stenosisTricuspid valve dysplasia

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Area of Science:

  • Veterinary Cardiology
  • Congenital Heart Disease
  • Canine Medicine

Background:

  • Cor triatriatum dexter (CTD) is a rare congenital cardiac anomaly.
  • Understanding its presentation and outcomes in dogs is crucial for diagnosis and management.

Purpose of the Study:

  • To describe the signalment, clinical presentation, diagnostic findings, interventions, and outcomes in dogs with CTD.
  • To investigate the association of CTD with other congenital cardiac defects.

Main Methods:

  • Retrospective review of medical records from 17 client-owned dogs diagnosed with CTD.
  • Analysis of signalment, history, physical examination, imaging, concurrent defects, interventions, and outcomes.

Main Results:

  • CTD was diagnosed in dogs aged 2-110 months, with 59% under 12 months.
  • Peritoneal effusion was the most common presenting complaint (59%).
  • CTD was frequently associated with other congenital cardiac anomalies (82%), especially right-sided defects like tricuspid valve dysplasia (53%).

Conclusions:

  • Cor triatriatum dexter in dogs is often linked to other right-sided congenital heart anomalies and can be an incidental finding.
  • Intervention for obstructive CTD can lead to favorable outcomes.
  • Asymptomatic dogs may remain clinically stable into adulthood.