Miho Sumiyoshi1, Takuma Maeda2,3, Erika Miyazaki4, Naoshi Hotta4, Hitoshi Sato4, Eisuke Hamaguchi4, Hiroko Kanazawa4, Yoshihiko Ohnishi4, Masataka Kamei1. 1. Department of Anesthesiology, Mie University Hospital, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan. 2. Department of Anesthesiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishirodai, Suita, Osaka, 565-8565, Japan. takuma@ncvc.go.jp. 3. Division of Transfusion Medicine, National Cerebral and Cardiovascular Center, 5-7-1 Fujishirodai, Suita, Osaka, 565-8565, Japan. takuma@ncvc.go.jp. 4. Department of Anesthesiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishirodai, Suita, Osaka, 565-8565, Japan.
Abstract
PURPOSE: The ClearSight™ device monitors continuous pressure and cardiac output via pulse contour analysis. ClearSight™, however, may not be reliable in patients with reduced peripheral perfusion caused by high peripheral resistance. This study aimed to elucidate the accuracy and trending ability of ClearSight™ in patients undergoing abdominal aortic aneurysm (AAA) surgery by comparing the ClearSightTM-derived cardiac index (CICS) with that measured using three-dimensional echocardiography (CI3D). METHODS: The study included 20 patients who underwent elective AAA surgery. CICS and CI3D were measured simultaneously at eight time points during the surgery. Trending ability was investigated after aortic clamping and unclamping. We used CI3D as the reference method. RESULTS: Bland-Altman analysis showed a wide limit of agreement between CICS and CI3D (percentage error 41.3%). Subgroup analysis showed a lower percentage error (33.2%) in patients with CI ≥ 2.5 L/min/m2. The cubic splines related to the CI3D and CI discrepancy were negatively sloped, indicating that CI3D had significant influence on the CI discrepancy (p < 0.001). Four-quadrant plot analysis showed that the tracking ability of ClearSight™ after aortic clamping and declamping were clinically unacceptable (81.3% and 78.6%, respectively). Also, the polar plot analysis showed that the concordance rate of ClearSight™ after aortic clamping and declamping were clinically unacceptable (58.3% and 66.7%, respectively). CONCLUSIONS: ClearSight™ was not sufficiently accurate in patients undergoing AAA surgery. The tracking ability of ClearSight™ after aortic clamping was below the acceptable limit.
PURPOSE: The ClearSight™ device monitors continuous pressure and cardiac output via pulse contour analysis. ClearSight™, however, may not be reliable in patients with reduced peripheral perfusion caused by high peripheral resistance. This study aimed to elucidate the accuracy and trending ability of ClearSight™ in patients undergoing abdominal aortic aneurysm (AAA) surgery by comparing the ClearSightTM-derived cardiac index (CICS) with that measured using three-dimensional echocardiography (CI3D). METHODS: The study included 20 patients who underwent elective AAA surgery. CICS and CI3D were measured simultaneously at eight time points during the surgery. Trending ability was investigated after aortic clamping and unclamping. We used CI3D as the reference method. RESULTS: Bland-Altman analysis showed a wide limit of agreement between CICS and CI3D (percentage error 41.3%). Subgroup analysis showed a lower percentage error (33.2%) in patients with CI ≥ 2.5 L/min/m2. The cubic splines related to the CI3D and CI discrepancy were negatively sloped, indicating that CI3D had significant influence on the CI discrepancy (p < 0.001). Four-quadrant plot analysis showed that the tracking ability of ClearSight™ after aortic clamping and declamping were clinically unacceptable (81.3% and 78.6%, respectively). Also, the polar plot analysis showed that the concordance rate of ClearSight™ after aortic clamping and declamping were clinically unacceptable (58.3% and 66.7%, respectively). CONCLUSIONS: ClearSight™ was not sufficiently accurate in patients undergoing AAA surgery. The tracking ability of ClearSight™ after aortic clamping was below the acceptable limit.
Authors: William A Zoghbi; Maurice Enriquez-Sarano; Elyse Foster; Paul A Grayburn; Carol D Kraft; Robert A Levine; Petros Nihoyannopoulos; Catherine M Otto; Miguel A Quinones; Harry Rakowski; William J Stewart; Alan Waggoner; Neil J Weissman Journal: J Am Soc Echocardiogr Date: 2003-07 Impact factor: 5.251
Authors: Victor Mor-Avi; Carly Jenkins; Harald P Kühl; Hans-Joachim Nesser; Thomas Marwick; Andreas Franke; Christian Ebner; Benjamin H Freed; Regina Steringer-Mascherbauer; Heidi Pollard; Lynn Weinert; Johannes Niel; Lissa Sugeng; Roberto M Lang Journal: JACC Cardiovasc Imaging Date: 2008-07
Authors: M M Givertz; W S Colucci; T H LeJemtel; S S Gottlieb; J M Hare; M T Slawsky; C V Leier; E Loh; J M Nicklas; B E Lewis Journal: Circulation Date: 2000-06-27 Impact factor: 29.690