心膜ノック音

英

pericardial knock, pericardial knock sound

関

収縮性心膜炎

概念

• 拡張早期過剰心音
• 音程：高音　⇔　(III音は低音)
• 聴取部位：心尖部
• 時期：拡張早期の過剰心音。大動脈弁の閉鎖に続いて聴取(A2から0.10-0.12 s後)　(⇔III音は0.14-0.16 s後)
• 肥厚した心膜による拡張不全で生じる音。

• its presence depends on the restrictive effect of the adherent pericardium, which abruptly halts diastolic filling(HIM.1386)

• 収縮性心膜炎に典型的

• an S3 that is earlier (0.10?0.12 s after A2) and higher-pitched than normal (a pericardial knock) often occurs in patients with constrictive pericarditis (HIM.1386)

参考

• 辞書

<click2in>http://www.medilexicon.com/medicaldictionary.php?t=47245</click2in> <click2in>http://medical-dictionary.thefreedictionary.com/pericardial+knock</click2in>

• texasheart.org

<click2in>http://www.texasheart.org/education/cme/explore/events/eventdetail_5056-presentation.cfm</click2in>