Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is a left - sided dual - chamber pacemaker through a left subclavian approach , with leads terminating in the right atrium and right ventricle . There is no pneumothorax , pleural effusion , or focal consolidation . There is mild cardiomegaly . There is no vascular congestion .
    OUTPUT:
    
Left - sided dual chamber pacemaker with leads terminating in the right atrium and right ventricle , no evidence of complication .