フレキシブル・アリゲーター鉗子による肺動脈内犬糸状虫摘出後の臨床効果

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  • Clinical effects after heartworm removal from pulmonary arteries using flexible alligator forceps in dogs with common dirofilariasis.
  • フレキシブル・アリゲーター鉗子による肺動脈内犬糸状虫摘出後の臨床効果〔英文〕
  • フレキシブル アリゲーター カンシ ニ ヨル ハイ ドウミャクナイ イヌ シジ

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Changes in clinical features after heatworm removal flom the pulmonary arteries using flexible alligator forceps were examined in 36 dogs with common dirofilariasis. No dogs died owing to the removal manipulations. The removal efficiency was 90% in 18 dogs autopsied. In the mild cases (23 dogs), the signs such as coughing, anemia and so on were relieved or disappeared rapidly after removal. Serious cases were divided into ascites (9 dogs) and hemoptysis (4 dogs) cases. Their prominent signs before removal were less activity, anorexia, dyspnea and anemia in almost all cases, and subcutaneous edema, hydrothorax, icterus and hypothermia were seen in some ascites cases. The general condition improved considerably and the main symptoms were relieved or disappeared within 4 weeks after removal in most cases. The post-removal progress was good in all cases with hemoptysis and in 7 of 9 cases with ascites. However, 2 cases with ascites died of severe heart valvular disease or renal failure 3.5 or 4 months after removal. Anemia, leukocytosis and hypoalbuminemia were alleviated after removal in some mild and serious cases on laboratory tests. LDH and CK activities, which showed high levels before removal, decreased within 1 or 4 weeks after. These findings might suggest that injuries of the heart, lung and liver healed after the heartworm removal. However, the cases with insufficient compensation for severe lesions could not recover completely. These results showed that the heartworm removal using flexible alligator forceps was safe and excellent as a radical therapy for heartworm disease and could be recommended to apply for even serious cases.

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