Shock Clinical Trial - The Prevalence of the Aortic to Radial Pressure

Status Not yet recruiting

Clinical Trial Summary

First described in cardiac surgery, the aortic to radial pressure gradient (ATRAP) is the cause of an underestimation of the aortic pressure with a measure assumed with a radial catheter, and he can concert 1 of 3rd patients. The risks factor well known are small height, previous hypertension, long and difficult surgery, radial artery diameter less than 1.8mm. The ATRAP definition is a pressure difference between radial and femoral (same of the aortic pressure) pressure of 25mmHg on the systolic pressure, or a pressure difference on the mean pressure of 10mmHg, both measures realised by arterial canulation, and with a duration superior than 5 minutes. If this gradient appears in pathophysiological specifics situations, there is a risk of inappropriate administration of vasopressors, with more hospitalisation days, more side effect of vasopressors like an augmentation of myocardial work. The ATRAP is documented in septic shock with a prevalence between 21% and 27%. The ATRAP can appear in shocks, moreover with doses of equivalent norepinephrine of 0.5 µg/kg/min who is use for the definition of refractive shock, the difference between the two pressure is higher if the dose of equivalent norepinephrine is higher than 1µg/kg/min. But the prevalence and risks factors are barely unknowns in this situation. Most of the time, a radial arterial catheter is used for hemodynamic monitoring for his simplicity of utilisation and the lows complications associated. Some medical teams in cardiac surgeries, or in intensive care unit (ICU) for the management of shocks used often radial and femoral arterial catheter. It seems there is no at risk for the utilisation of a radial and femoral arterial canulation. Out of the situation of cardiac surgery, there is a lack of information of the ATRAP, the objective of the study is to evaluate the prevalence of the ATRAP in shock, out of the situation of cardiac surgery.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Shock

Clinical Trial Details

NCT number	NCT06460519
Study type	Observational
Source	Hospices Civils de Lyon
Contact	Matthias Jacquet-lagreze, Dr
Phone	0783426888
Email	matthias.jacquet-lagreze@chu-lyon.fr
Status	Not yet recruiting
Phase
Start date	August 1, 2024
Completion date	September 1, 2025

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

The Prevalence of the Aortic to Radial Pressure Gradient in States of Shock, Outside the Context of Cardiac Surgery, a Prospective Study — PARECHOC

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms