Objective—To determine survival times of and prognostic
indicators for dogs with heart base masses.
Procedure—Medical records were reviewed to
obtain information regarding signalment; initial complaint;
results of physical examination, radiography,
electrocardiography, and echocardiography; surgical
findings; medical and surgical treatment; outcome;
necropsy findings; survival time; and cause of death.
Results—Survival time ranged from 0 to 1,096 days
(mean, 213 days; median, 57 days). None of the variables
examined, including initial complaints and
results of physical examination, radiography, electrocardiography,
and echocardiography, were associated
with survival time. However, dogs that underwent
pericardectomy had a significantly longer mean survival
time (mean ± SD, 661 ± 170 days) than did dogs
that were treated medically (129 ± 51 days).
Conclusions and Clinical Relevance—Results suggest
that dogs with heart base masses that undergo
pericardectomy may survive longer than those that
receive medical treatment alone. (J Am Vet Med