Clinical trial NCT05293067: Troponin in Carotid Revascularization
Official title: Troponin in Carotid Revascularization
Study type: OBSERVATIONAL
Overall status: ACTIVE_NOT_RECRUITING
Conditions: Carotid Artery Stenosis
Lead sponsor: University of Belgrade
Sponsor class: OTHER
First posted: 2022-03-24
Enrollment: 320
Sex: ALL
Minimum age (years): 40
Maximum age (years): 85
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Patients with extracranial carotid stenosis greater than 50% (NASCET) in the carotid bifurcation or internal carotid artery assessed by ultrasound in whom carotid revascularisation is planned;

Brief summary: Patients undergoing carotid revascularization procedures are at increased risk for the development of short- and long-term cardiac complications. Increased values of high-sensitive troponin may be useful in a timely selection of those patients. Still, contemporary literature doesn't provide enough data to answer the following questions: "Can high-sensitive troponin predict adverse cardiac outcomes perioperatively in carotid surgery?", "Should these cardiac biomarkers be routinely sampled in all patients undergoing carotid revascularization?" and "Can elevated levels of high-sensitive troponin preoperatively designate patients in whom the risk of surgical treatment (at a given moment) is greater than the benefit of the surgery?".

Detailed description: The aims of the study are: 1) to determine the incidence of elevated troponin levels pre- and postoperatively in patients undergoing CEA/CAS; 2) to assess whether elevated troponin levels pre- and postoperatively can predict the occurrence of myocardial infarction and death in these patients; 3) to demonstrate whether routine pre- and postoperative troponin measurement is justified in all or only in a particular subpopulation of patients, and 4) to assess whether, in this regard, a difference between patients undergoing CEA and CAS procedures exists.

A prospective, multicenter cohort study would include approximately 240 consecutive patients undergoing CEA/CAS procedures, under the conditions of regional/general and local anesthesia, during the period from April, to August 2022. Patients admitted due to emergency procedure for immediate surgical treatment (the same day), patients with preoperative anemia (due to any reason, hemoglobin level \< 10 g/dL), in whom concomitant or "staged" cardiac surgery or vascular procedure is planned, who had an acute coronary event in the previous 3 months, patients undergoing multiple CEA/CAS during the study period, as well as those patients with conditions that may lead to increased troponin levels (end-stage kidney disease, sepsis, acute pericarditis and myocarditis, advanced heart failure, chemotherapy, systemic inflammatory diseases, and critical limb ischemia) would be excluded from the study. Using a pre-designed questionnaire, standard demographic and clinical data (related to comorbidities, chronic therapy, habits, previous surgery, and characteristics of carotid disease) would be collected. Intraoperative data (type of carotid intervention, type of anesthesia technique, and shunt placement), as well as data regarding the postoperative course, would be obtained from the database implemented in daily practice and patients' medical records. High-sensitive troponin would be measured in all patients, according to the following plan: 1) preoperatively - one day before the planned intervention and 2) postoperatively - 8 hours after the operation and on the first day after the operation. Troponin samples would be frozen and analyzed only after the patient's hospital discharge. Also, ECG would be recorded immediately following troponin measurement (a day before the planned intervention, 8 hours and 24 hours after the intervention). Patients operated on at the Clinic for Vascular and Endovascular Surgery of the University Clinical Center of Serbia would be operated under the conditions of regional anesthesia - a combination of deep and superficial cervical plexus block (which is a regular practice at this Institution), or local infiltrative anesthesia (for CAS procedures), while patients in other Hospital would be treated under the conditions of general anesthesia (Collaborators - to be defined). Clinical outcomes of interest: myocardial injury, myocardial infarction, stroke, cardiac-related death, and the all-cause mortality, would be recorded perioperatively, until hospital discharge (2 days following the procedure). Myocardial infarction, stroke, cardiac-related death, and the all-cause mortality would be recorded preoperatively and up to 2 days following the procedure, one month after, one and two years following surgery (at regular postoperative check-ups or by telephone interview with the patient, or a member of his family). Myocardial injury would be defined in accordance with the current Fourth Universal Definition of Myocardial Infarction, published by the European Society of Cardiology, as the existence of at least one elevated troponin value above the 99th percentile of the upper reference limit. In accordance with the same recommendations, acute myocardial infarction would be defined as the existence of an increase and/or decrease in troponin levels and clinical signs of acute myocardial ischemia. The indication for surgery or stenting procedure would be made based on the European Society of Vascular Surgery guidelines.

Eligibility criteria: Inclusion Criteria:

* Extracranial carotid stenosis greater than 50% (NASCET) in the carotid bifurcation or internal carotid artery assessed by ultrasound in whom carotid revascularisation is planned;
* The ability of the patient for follow-up examinations;
* Personally signed informed consent

Exclusion Criteria:

* Patients admitted due to emergency procedure for immediate surgical treatment (the same day);
* Patients with preoperative anemia (due to any reason, hemoglobin level \< 10 g/dL);
* Patients in whom concomitant or "staged" cardiac surgery or vascular procedure is planned,
* Patients who had an acute coronary event in the previous 3 months;
* Patients undergoing multiple CEA/CAS during the study period;
* Patients with end-stage kidney disease;
* Patients with sepsis:
* Patients with acute pericarditis/myocarditis;
* Patients with advanced heart failure;
* Patients on chemotherapy,
* Patients with systemic inflammatory diseases;
* Patients with critical limb ischemia;

Primary outcomes:
measure: The incidence of myocardial injury
timeFrame: preoperatively
measure: The incidence of myocardial injury
timeFrame: 2 days following surgery
measure: The incidence of myocardial infarction
timeFrame: 2nd postoperative day
measure: The incidence of myocardial infarction
timeFrame: 2 years following surgery
measure: The rate of cardiac-related death
timeFrame: 2nd postoperative day
measure: The rate of cardiac-related death
timeFrame: 2 years following surgery
measure: The incidence of stroke
timeFrame: 2nd postoperative day
measure: The incidence of stroke
timeFrame: 2 years following surgery
measure: The rate of all-cause mortality
timeFrame: 2nd postoperative day
measure: The rate of all-cause mortality
timeFrame: 2 years following surgery
Secondary outcomes:
Other outcomes:
Locations:
city: Belgrade
country: Serbia
facility: Clinic for Vascular and Endovascular Surgery, University Clinical Center of Serbia
Study officials:
affiliation: University of Belgrade
name: Igor Koncar, MD, Ph.D.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Grobben RB, Vrijenhoek JE, Nathoe HM, Den Ruijter HM, van Waes JA, Peelen LM, van Klei WA, de Borst GJ. Clinical Relevance of Cardiac Troponin Assessment in Patients Undergoing Carotid Endarterectomy. Eur J Vasc Endovasc Surg. 2016 Apr;51(4):473-80. doi: 10.1016/j.ejvs.2015.09.023. Epub 2015 Nov 6.
citation: Galyfos G, Tsioufis C, Theodorou D, Katsaragakis S, Zografos G, Filis K. Cardiac troponin I after carotid endarterectomy in different cardiac risk patients. J Stroke Cerebrovasc Dis. 2015 Mar;24(3):711-7. doi: 10.1016/j.jstrokecerebrovasdis.2014.11.024. Epub 2015 Jan 16.
citation: Pereira-Macedo J, Rocha-Neves JP, Dias-Neto MF, Andrade JPV. Prognostic effect of troponin elevation in patients undergoing carotid endarterectomy with regional anesthesia - A prospective study. Int J Surg. 2019 Nov;71:66-71. doi: 10.1016/j.ijsu.2019.09.015. Epub 2019 Sep 19.
citation: Nagy B, Engblom E, Matas M, Maroti P, Koszegi T, Menyhei G, Lantos J, Szabo P, Molnar T. Increased serum level of high sensitivity troponin T even prior to surgery can predict adverse events during carotid endarterectomy. Vascular. 2021 Dec;29(6):938-944. doi: 10.1177/1708538120986297. Epub 2021 Jan 11.