INTRA-ATRIAL CATHETER PLACEMENT UNDER ELECTROCARDIOGRAPHIC GUIDANCE.
D006328:Cardiac Catheterization; D004562:Electrocardiography; D006325:Heart Atria; D006801:Humans; D006849:Hydrocephalus; D009493:Neurosurgery
ELECTROCARDIOGRAPHY; HEART CATHETERIZATION; HYDROCEPHALUS; NEUROSURGERY