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  • Title: Use of a modified surgical approach to the right atrium for retrieval of heartworms in a dog.
    Author: Kuntz CA, Smith-Carr S, Huber M, Weigand C, Hankes GH.
    Journal: J Am Vet Med Assoc; 1996 Mar 01; 208(5):692-4. PubMed ID: 8617624.
    Abstract:
    A 2-year-old 2-kg female Maltese dog was referred for treatment of dirofilariosis and mild caval syndrome characterized by hemolysis and lethargy. Ultrasonography revealed worms within the caudal vena cava, right auricle, right ventricle, and pulmonary artery. Because of the mild clinical signs and small size of the dog, jugular venotomy was not performed, and treatment with sodium caparsolate was instituted. A markedly adverse reaction was noticed on initial injection, characterized by cardiac and respiratory arrest. Further treatment with sodium caparsolate was discontinued. Because of progression of the dog's condition surgical removal of heartworms was elected. A modified surgical approach to the right atrium was performed, using a cannula introduced through a pursestring placed in the wall of the right auricle. This technique allowed almost complete removal of heartworms with minimal blood loss. Postoperative ultrasonography revealed a single heart-worm remaining in the distal portion of the left pulmonary artery, but it was subsequently absorbed.
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