Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate cardiomegaly . The small left pleural effusion is unchanged compared to the prior exam . There appears to be mild interstitial edema . No new focal consolidations are identified . There is no pneumothorax . The transvenous right atrial and left ventricular pacer leads and right ventricular pacer defibrillator leads are unchanged in position compared to the prior exam .
    OUTPUT:
    
No acute abnormalities identified to explain patients abnormal left base breath sounds .