caa a22 4500 477112897 CHVBK 20180405111614.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF01746208 doi (NATIONALLICENCE)springer-10.1007/BF01746208 Movement of pulmonary artery catheters [Elektronische Daten] [Michelle Chew, Erik Sloth, Mette Veien, KV Jensen, Hans Kure, J Hasenkam] Summary: Intraluminal movements of pulmonary artery catheters are seldom considered, although they may have a significant impact on flow measurement and safety. The purpose of this study was to document the movements of these catheters within the heart cycle, and to establish whether any patterns existed. We analyzed two-dimensional real time echocardiography cross-sectional images of the human pulmonary artery in 20 patients, plotting the position of the intra-arterial catheter frame-by-frame onto a standardized template. We found that movement of the catheter within the pulmonary artery occurred in a seemingly random pattern. There was no movement pattern to the inferior right of the vessel, an area known to have complex velocity profiles and erroneous velocity measurements. The catheter moved substantially throughout the heart cycle, occasionally quite close to the vessel wall. We observed significant movement of the pulmonary artery catheter throughout the heart cycle, without any predictable pattern. Although we did not specifically investigate the effect of these movements on cardiac output, they imply that intra-arterial Doppler flow measurements from the pulmonary artery may be inaccurate, since a stable catheter position, and, hence, a sample volume, cannot be ensured. Further speculation can be made on the implications of these movements in regard to thermodilution cardiac output and safety. Springer-Verlag, 1996 Pulmonary artery catheter nationallicence Doppler nationallicence Flow nationallicence Cardiac output nationallicence Safety nationallicence Chew Michelle Department of Anesthesia and Intensive Care, Aarhus University Hospital, 8200, Aarhus N, Denmark aut Sloth Erik Department of Anesthesia and Intensive Care, Aarhus University Hospital, 8200, Aarhus N, Denmark aut Veien Mette Institute for Experimental Clinical Research, Aarhus University Hospital, 8200, Aarhus N, Denmark aut Jensen KV Department of Anesthesia and Intensive Care, Aarhus University Hospital, 8200, Aarhus N, Denmark aut Kure Hans Department of Cardiothoracic Surgery, Aarhus University Hospital, 8200, Aarhus N, Denmark aut Hasenkam J. Department of Cardiothoracic and Vascular Surgery and The Institute for Experimental Clinical Research, Skejby Sygehus, Aarhus University Hospital, 8200, Aarhus N, Denmark aut Heart and Vessels Springer-Verlag 11/5(1996-09-01), 269-274 0910-8327 11:5<269 1996 11 380 https://doi.org/10.1007/BF01746208 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01746208 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chew Michelle Department of Anesthesia and Intensive Care, Aarhus University Hospital, 8200, Aarhus N, Denmark aut NATIONALLICENCE 700 1- Sloth Erik Department of Anesthesia and Intensive Care, Aarhus University Hospital, 8200, Aarhus N, Denmark aut NATIONALLICENCE 700 1- Veien Mette Institute for Experimental Clinical Research, Aarhus University Hospital, 8200, Aarhus N, Denmark aut NATIONALLICENCE 700 1- Jensen KV Department of Anesthesia and Intensive Care, Aarhus University Hospital, 8200, Aarhus N, Denmark aut NATIONALLICENCE 700 1- Kure Hans Department of Cardiothoracic Surgery, Aarhus University Hospital, 8200, Aarhus N, Denmark aut NATIONALLICENCE 700 1- Hasenkam J. Department of Cardiothoracic and Vascular Surgery and The Institute for Experimental Clinical Research, Skejby Sygehus, Aarhus University Hospital, 8200, Aarhus N, Denmark aut NATIONALLICENCE 773 0- Heart and Vessels Springer-Verlag 11/5(1996-09-01), 269-274 0910-8327 11:5<269 1996 11 380 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer