Please assess the completion status of the following clinical trial:

Trial Title: Accuracy of Pulse Pressure Variations Measured by a Non Invasive Digital Device to Predict Fluid Responsiveness

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Adult patients of the intensive care units of the Lille university-hospital.~* Age greater than or equal to 18.~* Patient insured~* Mechanical ventilation without spontaneous respiratory cycles~* Regular cardiac rhythm~* Prescription by the physician in charge of the patients of a 500 mL volume expansion in less than 30 minutes.~* Patients with sepsis with at least one sign of acute circulatory failure:~  * Tachycardia with heart rate\> 100/min~ * systolic blood pressure \<90mmHg or a decrease \>40mmHg in previously hypertense patient~ * Oliguria \<0.5ml/kg/hour for at least one hour~ * skin mottling~Exclusion Criteria:~* high-grade aortic insufficiency~* transthoracic echogenicity unsuitable for measuring the stroke volume by echo-Doppler~* Spontaneous breathing~* clinical or ultrasonographic evidence of pulmonary edema due to heart failure~* pregnancy~* abdominal compartment syndrome~* Irregular cardiac rhythm

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Pulse pressure variations (Type: EXPERIMENTAL): Pulse pressure variations, stroke volume, systemic arterial pressure, heart rate, and respiratory rate are recorded immediately before and after volume expansion (VE), performed as a 30-minute infusion of 500 mL of 4% gelatin. Pulse pressure variations are obtained by noninvasive (ΔPPCNAP) and invasive (ΔPPART) devices.

Based on this trial design, predict the completion outcome and termination type (if applicable).