Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates less than 2 cm from the carina and could be slightly retracted for better positioning . Dual - chamber pacemaker with a lead extending via the coronary sinus is unchanged . Sternal wires are intact . Significant cardiomegaly is stable . No significant pulmonary edema . No evidence of pneumonia .
    OUTPUT:
    
Endotracheal tube terminating less than 2 cm in the carina . This could be slightly retracted to prevent right mainstem intubation .