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Cannon A waves : ウィキペディア英語版 | Cannon A waves Cannon A waves, or cannon atrial waves, are waves seen occasionally in the jugular vein of humans with certain cardiac arrhythmias. When the atria and ventricles contract simultaneously, the blood will be pushed against the AV valve, and a very large pressure wave runs up the vein.〔(【引用サイトリンク】title=cannon A waves - definition of cannon A waves in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia. )〕〔(【引用サイトリンク】title=Pacemaker Syndrome: Overview - eMedicine Cardiology )〕 It is associated with heart block, in particular third-degree (complete) heart block. It is also seen in pulmonary hypertension.〔 Cannon A waves may also be seen in ventricular tachycardia due to the inherent AV dissociation of the arrhythmia. This wave will cause pulsation in the neck and abdomen, headache, cough, and jaw pain.〔 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Cannon A waves」の詳細全文を読む
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