人為的肺動脈塞栓あるいは犬糸状虫体液投与に伴う寄生犬糸状虫の右心房方向への移動

DOI 日本農学文献記事索引 Web Site Web Site PubMed 被引用文献5件

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  • Heartworm migration toward right atrium following artificial pulmonary arterial emobolism or injection of heartworm body fluid.
  • 人為的肺動脈塞栓あるいは犬糸状虫体液投与に伴う寄生犬糸状虫の右心房方向への移動〔英文〕
  • ジンイテキ ハイ ドウミャク ソクセン アルイハ イヌ シジョウチュウ タイエ

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Heartworms harboring in the pulmonary arteries migrated toward the right atrium following insertion of dead heartworms or heartworm-like silicone tubes, or intravenous injection of body fluid extract of a female heartworm. The migration occurred within 3 hr (early group) or 1 to 7 days (late group) after insertion of dead worms, 1 to 11 days after insertion of silicone tubes, and immediately after infusion of heartworm-body fluid. The cardiac output decreased to an unmeasurably low level, and the pulmonary arterial pressure was also reduced in the early group. Although the output decreased, the pulmonary arterial pressure and the total pulmonary resistance increased gradually in the late group. In dogs with heartworm migration, in which silicone tubes had been inserted, the changes in cardiopulmonary values were the same as those in dogs of the late group. In dogs to which the body fluid had been administered intravenously, the changes in cardiopulmonary values were well accord with those in the early group. The systemic blood pressure also fell immediately after the administration with the shock-like state. These results suggest that the death of a part of the heartworms may be closely associated with the migration of heartworms toward the right atrium through the pulmonary arterial embolism and/or shock-like reaction by heartworm body fluid.

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