title: Analysis of prognostic indicators for dogs with pericardial effusion: 46 cases (1985-1996).
abstract: OBJECTIVE
  To determine factors associated with disease-free interval and survival time for dogs with pericardial effusion.
  
  
  METHODS
  Retrospective study.
  
  
  METHODS
  46 dogs.
  
  
  METHODS
  Signalment, history, results of physical examination, electrocardiography, echocardiography, and thoracic radiography; disease-free interval; and survival time were obtained from medical records or telephone conversations with owners and referring veterinarians.
  
  
  RESULTS
  Dogs that had ascites at the time of the initial physical examination were significantly less likely, and dogs that had evidence of pulmonary metastases on thoracic radiographs or that had echocardiographic evidence of a right atrial mass were significantly more likely, to have died of pericardial effusion or the underlying cause of effusion than were dogs that did not. Median survival time was 15.3 months for dogs with idiopathic pericardial effusion, 16 days for dogs with hemangiosarcoma, and 13.6 months for dogs with mesothelioma. Dogs that had a nonspecific extracardiac mass and underwent pericardiectomy were significantly less likely to have had recurrence of signs than were dogs that did not. However, dogs with mesothelioma or hemangiosarcoma that underwent pericardiectomy did not have a significantly different risk of recurrence of signs or survival time, compared with dogs that did not.
  
  
  CONCLUSIONS
  Results suggest that pericardiectomy will not affect risk of recurrence or survival time in dogs with pericardial effusion secondary to hemangiosarcoma or mesothelioma. However, pericardiectomy is still needed to differentiate dogs with neoplastic pericardial effusion from dogs with idiopathic pericardial effusion.
authors.affiliation: Department of Clinical Sciences, Veterinary Teaching Hospital, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins 80523-1620, USA.
authors.forename: D
authors.initials: D
authors.lastname: Dunning
authors.forename: E
authors.initials: E
authors.lastname: Monnet
authors.forename: E C
authors.initials: EC
authors.lastname: Orton
authors.forename: M D
authors.initials: MD
authors.lastname: Salman
mesh_terms: D000818:Animals; D001201:Ascites / Q000150:complications / Q000662:veterinary; D018572:Disease-Free Survival; D004283:Dog Diseases / Q000175:diagnosis / Q000209:etiology / Q000401:mortality*; D004285:Dogs; D004452:Echocardiography / Q000662:veterinary; D005260:Female; D006338:Heart Neoplasms / Q000150:complications / Q000662:veterinary; D006394:Hemangiosarcoma / Q000150:complications / Q000556:secondary / Q000662:veterinary; D008175:Lung Neoplasms / Q000556:secondary; D008297:Male; D008654:Mesothelioma / Q000150:complications / Q000662:veterinary; D010490:Pericardial Effusion / Q000175:diagnosis / Q000401:mortality / Q000662:veterinary*; D010492:Pericardiectomy / Q000662:veterinary; D011379:Prognosis; D016016:Proportional Hazards Models; D013902:Radiography, Thoracic / Q000662:veterinary; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors