Another parasitic infection of dogs that is capable of generating circulating microfilariae, detectable upon examination of the blood, is called Acanthocheilonema (Dipetalonema) reconditum. A reconditum is a non-disease-causing parasite which matures in the cells under the skin . Its offspring could be differentiated from those produced by heartworms through microscopic examination evaluating size, shape as well as their movement.Physical ExaminationA heartworm infected pet with mild disease may seem to be perfectly normal upon physical examination. Severely affected dogs, however, may show signs of right-sided heart collapse. Labored breathing or crackles may be observed from the lungs because of vascular ailments and elevated pressure. A history of coughing and inability to work out are among the first detectable abnormalities. Tachycardia (rapid heartbeat), ascites (fluid in the abdomen) and hepatomegaly (enlarged liver) indicate right-sided congestive heart failure. Hemoptysis (blood in the sputum) sometimes occurs and signals severe ailments and complications within the lungs. Anorexia (loss of appetite), cachexia (severe weight loss), syncope (fainting) jaundice or yellow bile pigmentation within the skin and mucous membranes might seem in severely affected dogs. Sometimes, heartworms are reported in strange areas like the eyes, abdominal cavity, cerebral artery and spinal cord. Clinical signs and disorder experienced in such ailments depend mostly on the location of these worms. The primary reaction to the presence of heartworms in dogs, however, occurs in the lungs and heart.
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