An observational study in Vasoplegia and Vasoplegic Shock, sponsored by Universität Münster. Recruiting at 1 site in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-12-11.
Sponsored by Universität Münster · Observational
This observational study investigates the effect of endotoxinemia on the postoperative incidence of vasoplegia or vasoplegic shock in patients undergoing cardiac surgery with the use of cardiopulmonary bypass.
Through previous research, it has been well established that cardiothoracic surgery using cardiopulmonary bypass (CPB) causes a systemic inflammatory response. This is in part due to the surgical trauma, the extracorporeal circulation and factors that come with it (e.g. blood contact with foreign surfaces, mechanical stress etc.), and ischemia. This inflammatory response is a key contributor to the incidence of vasoplegia and vasoplegic shock following these types of surgery - a common complication that in turn causes significant morbidity and mortality. Over the years, many factors that contribute to this reaction have been discussed. One potential explanation is the release of endotoxin into the bloodstream during CPB. Endotoxin is a molecule that is a part of bacteria which are native to the human gut. In healthy subjects, cell-barriers prevent release of relevant amounts of endotoxin into the blood stream. During major interventions, and especially during cardiac surgery with CPB, this barrier function is impeded, allowing endotoxin levels to rise and potentially exert detrimental effects. While previous studies have indicated that endotoxin may in fact be released into the bloodstream in significant concentrations, and there are some mechanistic explanations to how endotoxin may contribute to the resulting inflammation and vasoplegia, available studies have been small and the evidence is inconclusive. This study aims to show whether different blood-levels of endotoxin are associated with vasoplegia and vasoplegic shock in patients undergoing cardiac surgery with CPB.
48 studies on the registry are indexed under Vasoplegia; 19 are open to participants now.
This study's planned enrollment of 200 is close to the median of 200 across 19 observational studies indexed under Vasoplegia.
Browse Vasoplegia studies →Universität Münster is the lead sponsor of 30 studies on the registry; 19 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Perioperative patients
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Exclusion Criteria:
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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Due to the observational design of the study, no study-specific interventions are performed. Blood samples are measured to analyze blood-levels of endotoxin
Norepinephrine equivalent dose (NED)
Time frame: within 24 hours following induction of general anesthesia
Fluid input
Time frame: within 24 hours following induction of general anesthesia
Fluid balance
Time frame: within 24 hours following induction of general anesthesia
Occurence of Acute Kidney Injury (AKI) according to the Kidney Disease: Improving Global Outcomes (KDIGO) criteria
Time frame: 72 hours after cardiac surgery
Duration of mechanical ventilation
Time frame: within 72 hours after cardiac surgery
Plan to share: No
No publications or documents are linked to this record.
Started Oct 2023 (actual). Primary completion is estimated for Dec 2024, 14 months after the start.
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