anteroapical position
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Electrode placement. *****es or paddles may be placed in the anteroapicalor the anteroposterior position.

anteroapical position Is easy to use in an emergency it is associated with a lower delivery of current to the myocardium.
The left anteroposterior position is commonly used for cardioversion of atrial arrhythmias . because it is associated with a smaller interelectrode distance and a lesser interposition of lung parenchyma. This enhances delivery of current to the atria and improves the success of cardioversion
The right parasternal-left paravertebral position especial use in patients with ab**rmality of both atria(eg, atrial septal defect, rheumatic valve disease). This electrode position is favored in our laboratory for cardioversion of atrial fibrillation. is associated with better current delivery to both atria