Title: Dextrocardia
题目：右位心
Author作者: SemharTewelde

• Mirror-image dextrocardia is the most common form of cardiac malposition and is commonly associated with situsinversus of the abdominal organs
• 镜像关系的右位心是心脏异位的最常见形式，常伴有腹腔脏器反位
• The anatomic right ventricle is anterior to the left ventricle and the aortic arch curves to the right and posteriorly
• 解剖上，右心室位于左心室前方；主动脉弓向右后方向弯曲
• 25% percent of these patients will have associated sinusitis and bronchiectasis (Kartagener’s syndrome)
• 25％的患者将有鼻窦炎和支气管扩张（Kartagener氏综合征）
• ECG changes associated with dextrocardia include:
• 与右位心有关的心电图改变包括：
1. Right-axis deviation
电轴右偏
2. Global negativity in leads I and aVL (negative QRS w/inverted P and T waves)
I和aVL导联全部负波（负性QRS伴P和T波倒置）
3. Lead aVR similar to the normal aVL (positive QRS)
AVR导联与正常aVL类似（正QRS）
4. Absent R wave progression in precordial leads/dominant S waves
胸前导联无R波逐渐增高 /明显S波

References参考文献：
Al-Khadra A. Mirror-Image Dextrocardia With SitusInversus. Circulation. 1995; 91: 1602-1603