Coronary sinus rhythm and umbilical vein catheterization.
D001146:Arrhythmia, Sinus / Q000150:complications* / Q000503:physiopathology; D006328:Cardiac Catheterization; D004562:Electrocardiography; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000150:complications* / Q000503:physiopathology; D008722:Methods; D014471:Umbilical Veins; D014682:Vena Cava, Inferior / Q000002:abnormalities*