VOLume and Vasopressor Therapy in Patients With Hemodynamic instAbility

Septic Shock Clinical Trial

— VOLTA  

Official title:

Characterizing VOLume and Vasopressor Therapy in Patients With Hemodynamic instAbility (VOLTA)

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04089098
• Other study ID #: VOLTA-01
• Status: Completed
• Start date: September 1, 2019
• Est. completion date: September 30, 2021

Study information

• Verified date: June 2022
• Source: University of Leipzig
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

This prospective observational study will include critically ill patients with hemodynamic compromise. It will compare passive leg raising and a mini volume challenge (MVC) carried out on every patient sequentially. The endogenous release of stress hormones will also be assayed in order to investigate their modifying effect on the hemodynamic reaction of the participants. The effect of fluid resuscitation on renal perfusion will also be assessed and the data compared with the release of cystatin C.

Description:

Fluids are administered either before starting with or during ongoing vasopressor treatment in critically ill patients with hemodynamic instability. The endogenous release of stress hormones, namely renin, vasopressin, norepinephrine and cortisol, may be variable in critically ill patients, which may have a modifying effect on the hemodynamic response. Passive leg raising (PLR), a validated, simple and dynamic test, is currently recommended for testing fluid responsiveness. The test might possibly be false negative under extreme dehydration or increased intra-abdominal pressure. This prospective observational study aims to compare PLR and MVC with 300 ml Ringer acetate solution administered as a bolus within 5 minutes in critically ill medical patients with a hemodynamic instability. MVC will be carried out in every participant following PLR. Blood samples will be collected immediately before PLR for measurement of renin, copeptin A, cortisol and norepinephrine in those patients not yet receiving a vasopressor. These biomarkers will be compared with the Magnitude of fluid responsiveness. Additionally, renal resistive index will be assessed with ultrasound immediately before PLR and 1 and 24 hours after fluid challenge and the data compared with Initial serum cystatin C in those patients who have not yet developed acute renal failure. Blood samples for measurement of angiopoietin-2, a marker of capillary leak, will be drawn immediately before PLR and the data will be correlated with the amount of fluid required for Initial resuscitation.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 125
• Est. completion date: September 30, 2021
• Est. primary completion date: July 31, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• mean arterial pressure <65 mm Hg and/or
• blood lactate >2 mmol/l and/or
• mottling or capillary refill >3 seconds and/or
• oliguria and
• critical care decision for testing fluid responsiveness

Exclusion Criteria:

• cardiopulmonary resuscitation
• uncontrolled bleeding
• irreversible brain damage
• pregnancy and lactation
• Age under 18 years

Related Conditions & MeSH terms

• Hemodynamic Instability
• Septic Shock
• Shock

Intervention

Diagnostic Test:
• passive leg raising versus mini volume challenge
Blood samples will be collected and ultrasound evaluation of renal perfusion conducted in study participants immediately before conducting passive leg raising (PLR). PLR will then be carried out on study participants, followed by MVC. PLR- and/or MVC-responsive patients will receive a further 700 ml fluid immediately after the MVC. Renal perfusion will be further assessed 1 and 24 hours after the MVC.

Locations

Country	Name	City	State
Germany	University Hospital of Leipzig	Leipzig	Saxony

Sponsors (1)

Lead Sponsor	Collaborator
University of Leipzig

Country where clinical trial is conducted

Germany, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Changes in blood pressure under PLR vs. MVC	changes in mean arterial pressure with PLR vs. MVC	immediately at the end of the MVC
Secondary	Hemodynamic changes with PLR vs. MVC	Changes in cardiac Output under PLR vs. MVC	immediately at the end of the MVC
Secondary	fluid requirement and endogenous stress response	correlation between fluid requirement and the level of endogenous renin, copeptin A, cortisol and norepinephrine	at the end of the first 3 hours of fluid resuscitation
Secondary	fluid administration versus renal perfusion	renal resistive index will be assessed 1 and 24 hours after the Initial fluid resuscitation	1 and 24 hours after initial fluid resuscitation
Secondary	fluid administration and capillary leak	Fluid resuscitation in the first 3 hours vs. initial serum angiopoietin-2	at the end of the first 3 hours of fluid resuscitation