Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Comparison is made with the next preceding PA and lateral chest examination of ___ . The frontal view AP chest image does not disclose any pneumothorax in this patient who recently has undergone revision of failing permanent pacer . Comparison is made with a previous study . One can also identify that a new different type pacemaker capsule has been inserted . A new third electrode reaches in a position compatible with apical portion of the right ventricle . Noteworthy is that the previously present remains in unchanged position with it s tip , a finding which also holds for the right atrial electrode . Unfortunately , there are multiple probably external wires overlying the area making interpretation uncertain .
    OUTPUT:
    
No pneumothorax , no new acute pulmonary infiltrates .