• 1. Ogburn PN. Cardiovascular system. In: Slatter D, ed. Textbook of small animal surgery. Vol 2. 2nd ed. Philadelphia: WB Saunders Co, 1993;21062111.

    • Search Google Scholar
    • Export Citation
  • 2. Thamm DH. Miscellaneous tumors. In: Withrow SJ, Vail DM, eds. Small animal clinical oncology. 4th ed. St Louis: Saunders Elsevier, 2007;785795.

    • Search Google Scholar
    • Export Citation
  • 3. Weisse C, Soares N, Beal MW, et al. Survival times in dogs with right atrial hemangiosarcoma treated by means of surgical resection with or without adjuvant chemotherapy: 23 cases (1986-2000). J Am Vet Med Assoc 2005; 226:575-579.

    • Search Google Scholar
    • Export Citation
  • 4. Nelson RW, Guillermo Couto C. Selected neoplasms in dogs and cats. In: Nelson RW, Guillermo Couto C, eds. Small animal internal medicine. 3rd ed. St Louis: Mosby, 2003;11421155.

    • Search Google Scholar
    • Export Citation
  • 5. Sorenmo KU, Baez JL, Clifford CA, et al. Efficacy and toxicity of a dose-intensified doxorubicin protocol in canine hemangiosarcoma. J Vet Intern Med 2004; 18:209-213.

    • Search Google Scholar
    • Export Citation
  • 6. Jackson J, Richter KP, Launer DP. Thoracoscopic partial pericardiectomy in 13 dogs. J Vet Intern Med 1999; 13:529-533.

  • 7. Das K, Rothberg M. Thoracoscopic surgery: historical perspectives. Neurosurg Focus 2000; 9:e10.

  • 8. Seder CW, Hanna K, Lucia V, et al. The safe transition from open to thoracoscopic lobectomy: a 5-year experience. Ann Thorac Surg 2009; 88:216-225.

    • Search Google Scholar
    • Export Citation
  • 9. Landreneau RJ, Hazelrigg SR, Mack MJ, et al. Postoperative pain-related morbidity: video-assisted thoracic surgery versus thoracotomy. Ann Thorac Surg 1993; 56:1285-1289.

    • Search Google Scholar
    • Export Citation
  • 10. Walsh PJ, Remedios AM, Ferguson JF, et al. Thoracoscopic versus open partial pericardectomy in dogs; comparison of postoperative pain and morbidity. Vet Surg 1999; 28:472-479.

    • Search Google Scholar
    • Export Citation

Advertisement

Thoracoscopic subtotal pericardiectomy and right atrial mass resection in a dog

Denise M. Crumbaker DVM1, Matthew B. Rooney DVM, MS, DACVS2, and J. Brad Case DVM3
View More View Less
  • 1 Aspen Meadow Veterinary Specialists, 104 S Main St, Longmont, CO 80501.
  • | 2 Aspen Meadow Veterinary Specialists, 104 S Main St, Longmont, CO 80501.
  • | 3 Aspen Meadow Veterinary Specialists, 104 S Main St, Longmont, CO 80501.

Abstract

Case Description—A 10-year-old spayed female Corgi mix was examined for a 3-week history of lethargy and weight gain.

Clinical Findings—Physical examination findings included muffled heart sounds and a distended abdomen with a fluid wave on ballottement. Thoracic radiography revealed a globoid cardiac silhouette, and thoracic ultrasonography indicated pericardial effusion and a pedunculated mass originating from the right auricle.

Treatment and Outcome—Initial treatment consisted of pericardiocentesis. One week later, thoracoscopic right atrial mass resection was performed. No surgical complications were noted, and the dog was discharged approximately 28 hours after surgery. Results of histologic examination of the mass indicated a grade 2 hemangiosarcoma with incomplete margins. Treatment with doxorubicin was initiated 35 days after surgery. The dog survived for 177 days after mass resection, when it was euthanized because of complications related to metastatic disease.

Clinical Relevance—Findings suggested that thoracoscopic right atrial mass removal combined with adjunct doxorubicin treatment may be a viable alternative to thoracotomy in dogs with right atrial masses.

Contributor Notes

Dr. Case's present address is Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523.

Address correspondence to Dr. Crumbaker (dbarr520@aol.com).