RESUMO
A 10-month-old female spayed Scottish Fold was referred to cardiology for incidental radiographic cardiomegaly. Echocardiography was suspicious for a right atrial or right auricular aneurysm. The differential diagnosis also included peritoneal-pericardial diaphragmatic hernia, mass lesion (cyst, granuloma, or neoplasia), or cardiac malformation. A giant right atrial aneurysm associated with a persistent left cranial vena cava was subsequently confirmed with computed tomography.
Assuntos
Aneurisma , Fibrilação Atrial , Doenças do Gato , Cardiopatias Congênitas , Feminino , Gatos , Animais , Fibrilação Atrial/veterinária , Veia Cava Superior/diagnóstico por imagem , Veia Cava Superior/anormalidades , Veia Cava Superior/patologia , Aneurisma/complicações , Aneurisma/diagnóstico por imagem , Aneurisma/veterinária , Cardiopatias Congênitas/diagnóstico , Cardiopatias Congênitas/veterinária , Cardiomegalia/veterinária , Doenças do Gato/diagnóstico por imagemRESUMO
A 9-month-old kitten with increased resting respiratory rate and exercise intolerance was diagnosed with a congenital partial atrioventricular septal defect causing pulmonary over circulation and presumed pulmonary hypertension based on echocardiogram. Invasive pressure measurements and contrast angiography confirmed this diagnosis. The cat underwent pulmonary artery banding under general anesthesia. Findings of echocardiogram 10 days postoperatively suggested reduced left-to-right shunt volume. Echocardiographic findings were static 4 months postoperatively.
Assuntos
Doenças do Gato/diagnóstico , Comunicação Interventricular/veterinária , Artéria Pulmonar/anormalidades , Animais , Doenças do Gato/diagnóstico por imagem , Doenças do Gato/cirurgia , Gatos , Diagnóstico Diferencial , Ecocardiografia/veterinária , Comunicação Interventricular/diagnóstico , Masculino , Artéria Pulmonar/cirurgiaRESUMO
In mammals, memory acquisition and retrieval can be affected by time of day, as well as by manipulations of the light/dark cycle. Under bifurcation, a manipulation of circadian waveform, two subjective days and nights are experimentally induced in rodents. We examined the effect of bifurcation on Pavlovian fear conditioning, a prominent model of learning and memory. Here we demonstrate that bifurcation of the circadian waveform produces a small deficit in acquisition, but not on retrieval of fear memory. In contrast, repeated phase-shifting in a simulated jet-lag protocol impairs retrieval of memory for cued fear. The results have implications for those attempting to adjust to shift-work or other challenging schedules.