@article{oai:miyazaki-u.repo.nii.ac.jp:00003312, author = {村上, 隆之 and Murakami, Takayuki and 萩尾, 光美 and 後藤, 高義 and 那須, 哲夫 and Nasu, Tetsuo and 斎藤, 勇夫 and Saito, Isao and Hagio, Mituyoshi and Goto, Takayoshi}, issue = {2}, journal = {宮崎大学農学部研究報告, Bulletin of the Faculty of Agriculture, Miyazaki University}, month = {Dec}, note = {ウシの正常な動脈管(DA)と動脈管開存症(PDA)の心臓を肉眼的に観察した. 妊娠満期胎子のDA は広く開存し,その内径は大動脈弓よりやや狭かった. DA の大動脈端に弁はなく, DA 腔内に突出する横走隆起も存在しなかった.生後DA は収縮し,6日齢以後のDA 腔は裂隙状で,約3か月でDA 腔は消失していた. ウシの奇形心116例中19例(16.37%)にPDA が認められた.今回の観察例と過去の報告例の合計50例のうち, PDA の単独奇形はわずか4例(8%)で,34例(68%) は大動脈や肺動脈の閉鎖性奇形に合併していた.著者らの観察した3例のPDA 単独奇形のうち,2例には拡張した肺動脈幹に噴流障害が,1例には動脈内膜炎が認められた.肺動脈の閉鎖や狭窄に伴うPDA でもDA を介する大動脈から肺動脈への短絡が示唆された., The ductus arteriosus (DA) of normal hearts and hearts with patent ductus arteriosus (PDA) in cattle were macroscopically observed. The DA of stillborn full-term fetuses was widely open and its diameter was somewhat narrower than that of the aortic arch. The DA had neither a transverse ridge projecting into its lumen nor a valve at its aortic end. The DA was constricted after birth, the ductus in calves older than 6 days of age having a slit-like lumen, and which became obliterated after about 3 months. PDA was observed in 19 (16.37%) of 116 bovine hearts showing congenital cardiac anomalies. Of 50 hearts comprised of our cases and other reported instances of PDA, uncomplicated PDA was observed in only 4 (8%) cases, and 34 (68%) cases of PDA were associated with obstructive anomalies of the aorta or pulmonary artery. Of the 3 cases of uncomplicated PDA that we observed, two had jet lesions and one had endarteritis in the dilated pulmonary trunk. A shunt through the DA from the aorta to the pulmonary artery was suggested in PDA associated with pulmonary atresia or stenosis.}, pages = {149--159}, title = {ウシにおける動脈管の解剖学的閉鎖と動脈管開存}, volume = {33}, year = {1986} }