Limited value of end-expiratory inferior vena cava diameter to predict fluid responsiveness impact of intra-abdominal pressure

Antoine Vieillard-Baron (1, 2) , Bruno Evrard (3, 4) , Xavier Repesse (1) , Julien Maizel (5) , Christophe Jacob (6) , Marine Goudelin (3) , Cyril Charron (7) , Gwenael Prat (6) , Michel Slama (8, 9) , Guillaume Geri (10, 11) , Philippe Vignon (12)

1 Hôpital Ambroise Paré [AP-HP]
2 CESP - Centre de recherche en épidémiologie et santé des populations
3 Service de Réanimation Polyvalente [CHU Limoges]
4 UNILIM - Université de Limoges
5 Unité Médicale de Soins Intensifs
6 CHU - BREST - Réa Med - CHRU Brest - Service de Réanimation Médicale
7 Intensive Care Unit, Section Thorax-Vascular Disease-Abdomen-Metabolism [AP-HP]
8 CHU Amiens-Picardie
9 MP3CV - Mécanismes physiopathologiques et conséquences des calcifications vasculaires - UR UPJV 7517
10 VIMA - Vieillissement et Maladies chroniques : approches épidémiologique et de santé publique
11 CESP - Centre de recherche en épidémiologie et santé des populations
12 CIC1435 - Centre d'Investigation Clinique de Limoges

Purpose: We sought to determine the diagnostic ability of the end-expiratory inferior vena cava diameter (IVCEE) to predict fluid responsiveness (FR) and the potential confounding effect of intra-abdominal pressure (IAP). Methods: In this multicenter study, 540 consecutive ventilated patients with shock of various origins underwent an echocardiographic assessment by experts. The IVCEE, velocity time integral (VTI) of the left ventricular outflow tract (LVOT) and intra-abdominal pressure (IAP) were measured. Passive leg raising (PLR) was then systematically used to perform a reversible central blood volume expansion. FR was defined by an increase in LVOT VTI >= 10% after 1 min of PLR. Results: Since IVC(EE)was not obtained in 117 patients (22%), 423 were studied (septic shock: 56%), 129 of them (30%) having elevated IAP (>= 12 mmHg) and 172 of them (41%) exhibiting FR. IVCEE <= 13 mm predicted FR with a specificity of at least 80% in 62 patients (15%), while IVCEE >= 25 mm predicted the absence of FR with a specificity of at least 80% in 61 patients (14%). In the remaining 300 patients (71%), the intermediate value of IVCEE did not allow predicting FR. An adjusted relationship between IVCEE and FR was observed while this relationship was less pronounced in patients with IAP >= 12 mmHg. Conclusions: Measurement of IVCEE in ventilated patients is moderately feasible and poorly predicts FR, with IAP acting as a confounding factor. IVCEE might add some value to guide fluid therapy but should not be used alone for fluid prediction purposes.

Domaines: Sciences du Vivant [q-bio]

Antoine Vieillard-Baron, Bruno Evrard, Xavier Repesse, Julien Maizel, Christophe Jacob, et al.. Limited value of end-expiratory inferior vena cava diameter to predict fluid responsiveness impact of intra-abdominal pressure. Intensive Care Medicine, 2018, 44 (2), pp.197-203. ⟨10.1007/s00134-018-5067-2⟩. ⟨hal-03577871⟩