Monday, April 22, 2013

Estudo retrospectivo de 153 casos de colapso, sincope ou intolerância ao exercício não diagnosticados / A retrospective study of 153 cases of undiagnosed collapse, syncope or exercise intolerance


A retrospective study of 153 cases of undiagnosed collapse, syncope or exercise intolerance: the outcomes

  1. L. Barnett1
  2. M. W. S. Martin2
  3. J. Todd3
  4. S. Smith4
  5. M. Cobb1
Article first published online: 22 DEC 2010
DOI: 10.1111/j.1748-5827.2010.01013.x
Journal of Small Animal Practice

Journal of Small Animal Practice

Volume 52Issue 1pages 26–31January 2011

Objectives: To retrospectively assess the long-term outcome for dogs that were presented with collapse, syncope or exercise intolerance for which an underlying cause is not identified.
Methods: The clinical records of animals presenting to two practices were assessed. Dogs which presented for collapse, syncope or exercise intolerance at least 6 months previously and did not receive a definitive diagnosis despite investigation were included. Follow-up of these cases was carried out by conducting telephone interviews with the owners.
Results: One hundred and fifty-three cases were successfully followed up. Clinical signs had resolved in 64 cases (42%), 35 dogs (23%) were continuing to exhibit clinical signs, although 22 of these had improved without medical intervention. In 17 cases (11%), a diagnosis had subsequently been made or treatment was being administered and 37 dogs (24%) had died. Of the deaths, 18 (12%) were considered to be related to the original presentation. The overall prevalence of death and deterioration related to the problems investigated was 16·2% of cases. Death in boxers was significantly more common than in other breeds (36%).
Clinical Significance: Death and deterioration are uncommon outcomes for dogs other than boxers presenting with collapse, syncope and exercise intolerance for which a definitive diagnosis cannot be made.


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