Cor Triatriatum Sinistrum with an Ostium Primum Atrial Septal Defect in a Siamese Cat

  • Choi, Ran (Section of Small Animal Internal Medicine, School of Veterinary Medicine, Kangwon National University) ;
  • Hyun, Chang-Baig (Section of Small Animal Internal Medicine, School of Veterinary Medicine, Kangwon National University)
  • Published : 2008.12.31

Abstract

An approximately 8-month-old, 2.61 kg, male Siamese kitten was referred with primary complaints of a 1-week history of respiratory distress, exercise intolerance and dyspnea. Diagnostic studies identified III/VI systolic murmur in the cardiac auscultation, right ventricular enlargement patterns in the electrocardiogram, pleural effusion and right-sided cardiomegaly in the thoracic radiography, and right marked ventricular dilatation, right atrial enlargement, atrial septal defect and abnormal left atrium divided by fibromuscular membrane. Based on these findings, the case was diagnosed as cor triatriatum sinistrum complicated with an ostium primum atrial septal defect. The cat was rescued with furosemide, nitroglycerine, oxygen supplement and fluid removal from pleural cavity.

Keywords

References

  1. Gharagozloo F, Bulkley BH, Hutchins GM. A proposed pathogenesis of cor triatriatum: impingement of the left superior vena cava on the developing left atrium. Am Heart J 1977; 94: 618-626 https://doi.org/10.1016/S0002-8703(77)80132-4
  2. Goel AK, Saxena A, Kothari SS. Atrioventricular septal defect with cor triatriatum: case report and review of the literature. Pediatr Cardiol 1998; 243-245
  3. Heaney AM, Bulmer BJ. Cor triatriatum sinister and persistent left cranial vena cava in a kitten. J Vet Intern Med 2004; 18: 895-898 https://doi.org/10.1892/0891-6640(2004)18<895:CTSAPL>2.0.CO;2
  4. Hyun C, Park IC. Congenital heart diseases in small animals: part II. Potential genetic aetiologies based on human genetic studies. Vet J 2006; 171: 256-262 https://doi.org/10.1016/j.tvjl.2005.02.007
  5. Jacobstein MD, Hirschfeld SS. Concealed left atrial membrane: pitfalls in the diagnosis of cor triatriatum and supravalve mitral ring. Am J Cardiol 1982; 49: 780-786 https://doi.org/10.1016/0002-9149(82)91959-2
  6. Johnson MS, Martin M, De Giovanni JV, Boswood A, Swift S. Management of cor triatriatum dexter by balloon dilatation in three dogs. J Small Anim Pract 2004; 45: 16- 20 https://doi.org/10.1111/j.1748-5827.2004.tb00189.x
  7. Kittleson MD, Kienle RD. Septal defect. In: Small Animal Cardiovascular Medicine 1st ed. St. Louis: Mosby. 1998: 230-239
  8. Koie H, Sato T, Nakagawa H, Sakai T. Cor triatriatum sinister in a cat. J Small Anim Pract 2000 Mar; 41: 128-131 https://doi.org/10.1111/j.1748-5827.2000.tb03180.x
  9. Lee S-G, Nam S-J, Moon H-S, Hyun C. Partial atrioventricular canal defect in a maltese dog. J Vet Clin 2008; 25: 195-199
  10. Lim CW, Yip WC, Quek SC. Cor triatriatum and partial atrioventricular septal defect. Pediatr Cardiol 2007; 28: 72-73 https://doi.org/10.1007/s00246-006-1392-2
  11. Marin-Garcia J, Tandon R, Lucas RV Jr, Edwards JE. Cor triatriatum: study of 20 cases. Am J Cardiol 1975; 35: 59-66 https://doi.org/10.1016/0002-9149(75)90559-7
  12. Miller GAH, Ongley PA, Anderson MW. Cor triatriatum: hemodynamic and angiocardiographic diagnosis. Am Heart J 1964; 68: 298-304 https://doi.org/10.1016/0002-8703(64)90295-9
  13. Van Son JA, Autschbach R, Mohr FW. Repair of cor triatriatum associated with partially unroofed coronary sinus. Ann Thorac Surg 1999; 68: 1414-1416 https://doi.org/10.1016/S0003-4975(99)00734-1
  14. Varma PK, Warrier G, Ramachandran P, Neema PK, Manohar SR, Titus T, Neelakandhan KS. Partial atrioventricular canal defect with cor triatriatum sinister: report of three cases. J Thorac Cardiovasc Surg 2004; 127: 572-573 https://doi.org/10.1016/S0022-5223(03)01029-8
  15. Wander KW, Monnet E, Orton EC. Surgical correction of cor triatriatum sinister in a kitten. J Am Anim Hosp Assoc 1998; 34: 383-386 https://doi.org/10.5326/15473317-34-5-383