Migration of tips of central venous catheters in seated patients.
D000328:Adult; D001795:Blood Pressure Determination / Q000295:instrumentation*; D006328:Cardiac Catheterization / Q000295:instrumentation*; D002496:Central Venous Pressure; D004562:Electrocardiography; D004618:Embolism, Air / Q000175:diagnosis / Q000628:therapy; D006325:Heart Atria; D006352:Heart Ventricles; D006801:Humans; D007432:Intraoperative Period; D008991:Monitoring, Physiologic / Q000295:instrumentation; D009068:Movement; D009493:Neurosurgery / Q000379:methods; D011187:Posture