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Assessment of fluid responsiveness

recent advances

Monnet, Xaviera; Teboul, Jean-Louisb

Current Opinion in Critical Care: June 2018 - Volume 24 - Issue 3 - p 190–195
doi: 10.1097/MCC.0000000000000501

Purpose of review In the field of prediction of fluid responsiveness, the most recent studies have focused on validating new tests, on clarifying the limitations of older ones, and better defining their modalities.

Recent findings The limitations of pulse pressure/stroke volume variations are numerous, but recent efforts have been made to overcome these limitations, like in case of low tidal volume ventilation. Following pulse pressure/stroke volume variations, new tests have emerged which assess preload responsiveness by challenging cardiac preload through heart–lung interactions, like during recruitment manoeuvres and end-expiratory/inspiratory occlusions. Given the risk of fluid overload that is inherent to the ‘classical’ fluid challenge, a ‘mini’ fluid challenge, made of 100 ml of fluid only, has been developed and investigated in recent studies. The reliability of the passive leg raising test is now well established and the newest publications have mainly aimed at defining several noninvasive estimates of cardiac output that can be monitored to assess its effects.

Summary Research in this field is still very active, such that several indices and tests of fluid responsiveness are now available. They may contribute to reduce excessive fluid balance by avoiding unnecessary fluid administration and, also, by ensuring safe fluid removal.

aService de réanimation médicale, AP-HP, Hôpital de Bicêtre

bInserm, UMR S_999, Univ Paris-Sud, Le Kremlin-Bicêtre, France

Correspondence to Prof. Xavier Monnet, Service de réanimation médicale, Hôpital de Bicêtre, 78, rue du Général Leclerc, 94 270 Le Kremlin-Bicêtre, France. Tel: +33 1 45 21 35 47; fax: +33 1 45 21 35 51; e-mail:

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