A prospective comparison of atrio-femoral and femoro-atrial flow in adult venovenous extracorporeal life support Preston B. Rich, MD, Samir S. Awad,

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Presentation transcript:

A prospective comparison of atrio-femoral and femoro-atrial flow in adult venovenous extracorporeal life support Preston B. Rich, MD, Samir S. Awad, MD, Stefania Crotti, MD, Ronald B. Hirschl, MD, MS, Robert H. Bartlett, MD, Robert J. Schreiner, MD The Journal of Thoracic and Cardiovascular Surgery Volume 116, Issue 4, Pages 628-632 (October 1998) DOI: 10.1016/S0022-5223(98)70170-9 Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig 1 The modified ECLS bridge. This bridge was placed in the ECLS circuits of all patients studied. Flow was redirected from AF to FA by changing position of the tubing clamps as indicated. Arrows indicate the path of blood flow with the 2 modes of support. The Journal of Thoracic and Cardiovascular Surgery 1998 116, 628-632DOI: (10.1016/S0022-5223(98)70170-9) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig 2 Maximum ECLS flow. When corrected for body weight, FA bypass provided significantly higher extracorporeal flow (FA = 55.6 ± 9.8 mL/kg per minute, AF = 51.1 ± 11.1 mL/kg per minute; P = .04). The Journal of Thoracic and Cardiovascular Surgery 1998 116, 628-632DOI: (10.1016/S0022-5223(98)70170-9) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig 3 Maximum Svo2. FA ECLS provided statistically higher levels of Svo2 (FA = 89.9% ± 6.6%, AF = 83.2% ± 4.2%, P = .006). The Journal of Thoracic and Cardiovascular Surgery 1998 116, 628-632DOI: (10.1016/S0022-5223(98)70170-9) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig 4 Flow required to maintain equivalent Svo2. Significantly less flow (adjusted for patient weight) was required during FA ECLS to achieve comparatively similar levels of Svo2 (FA = 37.0 ± 12.2 mL/kg per minute, AF = 46.4 ± 8.8 mL/kg per minute; P = .04). The Journal of Thoracic and Cardiovascular Surgery 1998 116, 628-632DOI: (10.1016/S0022-5223(98)70170-9) Copyright © 1998 Mosby, Inc. Terms and Conditions