Three dogs under 2 years of age with heartworm caval syndrome.
Heartworm caval syndrome (CS) occurred in three dogs under 2 years of age. A 23-month-old dog was recovered by surgical and medical treatments, but the other 2 dogs (15 and 21 months old) died. Necropsy demonstrated 12 heartworms in the 15-month-old dog and 8 worms in the 21-month-old dog. Histopathologically, pulmonary arterial embolism caused by dead worms and thrombi were observed in these cases. The findings suggested that CS could develop regardless of canine age and worm burden if pulmonary arterial embolism related to worm death or thrombus formation were induced.
Department of Veterinary Surgery, Faculty of Agriculture, Miyazaki University, Miyazaki, Japan.
Yuichi
Y
Hidaka
Mitsuyoshi
M
Hagio
Takayuki
T
Murakami
Syozo
S
Okano
Koichi
K
Natsuhori
Norio
N
Narita
D000818:Animals; D004182:Dirofilaria / Q000302:isolation & purification; D004184:Dirofilariasis / Q000175:diagnosis*; D004283:Dog Diseases / Q000175:diagnosis* / Q000469:parasitology; D004285:Dogs; D017809:Fatal Outcome; D008297:Male; D011655:Pulmonary Embolism / Q000469:parasitology / Q000473:pathology / Q000662:veterinary