• Antoine Vieillard-Baron, Michel Slama, Paul Mayo, Cyril Charron, Jean-Bernard Amiel, Cédric Esterez, François Leleu, Xavier Repesse, and Philippe Vignon.
• Intensive Care Unit, Section Thorax-Vascular Diseases-Abdomen-Metabolism, University Hospital Ambroise Paré, AP-HP, 9 avenue Charles-de-Gaulle, 92104, Boulogne, France. antoine.vieillard-baron@apr.aphp.fr
• Intensive Care Med. 2013 Apr 1;39(4):629-35.

PurposeTo evaluate the hemodynamic monitoring capability and safety of a single-use miniaturized transesophageal echocardiography (TEE) probe left in place in ventilated critically ill patients.MethodsThe probe was inserted in 94 patients and designed to be left in place for up to 72 h. Three views were obtained: the superior vena caval transverse, the mid-esophageal four-chamber, and the transgastric mid-papillary short-axis views. Observational data on the feasibility of insertion, complications, image quality, and influence on management were recorded and analyzed.ResultsNo failure of probe insertion was observed. The nasogastric tube had to be removed in 17 % of cases. Image quality was judged as adequate or optimal in 91/94 (97 %) of cases in the superior vena caval view, 89/94 (95 %) of cases in the four-chamber view, and 86/94 (91 %) of cases in the short-axis view. The duration of monitoring was 32 ± 23 h, allowing 2.8 ± 1.6 hemodynamic evaluations per patient that led to a mean of 1.4 ± 1.5 therapeutic changes per patient. Among the 263 hemodynamic assessments, 132 (50 %) had a direct therapeutic impact in 62 patients (66 %). Two patients developed lip ulceration from the probe, and two patients had self-limited gastric bleeding.ConclusionThe single-use miniaturized probe could be inserted in all patients. Image quality was acceptable in the majority of cases, and the information derived from the device was useful in making management decisions in patients with hemodynamic failure on ventilatory support. Further studies are needed to confirm the good tolerance and to compare the new device with other hemodynamic monitoring techniques.

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