Clinical trial NCT05192005: Perioperative Blood Pressure and In-hospital Morbidity After Coronary Artery Bypass Surgery
Official title: Perioperative Blood Pressure and In-hospital Morbidity After Coronary Artery Bypass Surgery
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Ischemic Cardiopathy
Lead sponsor: Fondation Hôpital Saint-Joseph
Sponsor class: OTHER
First posted: 2022-01-14
Enrollment: 1220
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: RETROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Patients with ischemic heart disease managed for coronary artery bypass grafting in the cardiac surgery department at Marie Lannelongue Hospital between 01/01/2016 and 12/31/2020.

Brief summary: The prevalence of hypertension is high, estimated at 80% in patients with cardiovascular (CV) disease. The optimal blood pressure (BP) level for CV prevention remains controversial. Data from the literature highlight that the relationship between BP level and mortality is not linear, but rather J-shaped. In particular, in treated hypertensive patients with stable coronary artery disease, a systolic BP below 120 mm Hg is associated with the risk of recurrent coronary events and CV mortality.

An inverse relationship was recently demonstrated between BP level before revascularization procedure and mortality at 3 months and 1 year after the procedure in patients managed for critical ischemia. These data underline the need for a personalized approach to the management of hypertension, especially in elderly hypertensive patients with comorbidities.

The question of the optimal mean BP value also arises in cardiac surgery, especially during extracorporeal circulation in patients undergoing coronary artery bypass grafting. Hypotension during cardiac surgery appears to be associated with renal failure and perioperative mortality in some patients. Conversely, high blood pressure levels (above the cerebral autoregulatory threshold) may be associated with postoperative cognitive impairment and bleeding risk. In hypertensive patients, the autoregulatory capacity of cerebral and renal perfusion is partly impaired, with a greater susceptibility to ischemia in case of hypotension. Personalized blood pressure targets could be beneficial perioperatively with a lower risk of postoperative complications.

The objective of this protocol is to determine a correlation between perioperative mean arterial pressure level and in-hospital morbidity in a population of patients with ischemic heart disease managed for coronary artery bypass grafting (CABG). The results of this descriptive work would make it possible to introduce the problem of the optimal blood pressure target during extracorporeal circulation according to the existence of peripheral arterial damage and preoperative blood pressure values.


Eligibility criteria: Inclusion Criteria:

* Patient whose age ≥ 18 years
* Patient with ischemic heart disease managed for coronary artery bypass grafting (CABG) between 01/01/2016 and 12/31/2020
* French-speaking patient

Exclusion Criteria:

* Patient under guardianship or curatorship
* Patient deprived of liberty
* Patient under court protection
* Patient objecting to the use of his data for this research

Primary outcomes:
measure: Correlation between perioperative mean arterial pressure level in the occurrence of postoperative organ failure
timeFrame: Day 30
Secondary outcomes:
measure: Correlation between perioperative mean arterial pressure level and occurrence of postoperative organ failure
timeFrame: Day 30
Other outcomes:
Locations:
city: Paris
country: France
facility: Groupe Hospitalier Paris Saint-Joseph
Study officials:
affiliation: Fondation Hôpital Saint-Joseph
name: Alexandra YANNOUTSOS, MD
role: PRINCIPAL_INVESTIGATOR
References:
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citation: Yannoutsos A, Lin F, Billuart O, Buronfosse A, Sacco E, Beaussier H, Mourad JJ, Emmerich J, Lazareth I, Priollet P. Low admission blood pressure as a marker of poor 1-year survival in patients with revascularized critical limb ischemia. J Hypertens. 2021 Aug 1;39(8):1611-1620. doi: 10.1097/HJH.0000000000002821.
citation: Ono M, Arnaoutakis GJ, Fine DM, Brady K, Easley RB, Zheng Y, Brown C, Katz NM, Grams ME, Hogue CW. Blood pressure excursions below the cerebral autoregulation threshold during cardiac surgery are associated with acute kidney injury. Crit Care Med. 2013 Feb;41(2):464-71. doi: 10.1097/CCM.0b013e31826ab3a1.
citation: Ono M, Brady K, Easley RB, Brown C, Kraut M, Gottesman RF, Hogue CW Jr. Duration and magnitude of blood pressure below cerebral autoregulation threshold during cardiopulmonary bypass is associated with major morbidity and operative mortality. J Thorac Cardiovasc Surg. 2014 Jan;147(1):483-9. doi: 10.1016/j.jtcvs.2013.07.069. Epub 2013 Sep 26.
citation: Hori D, Brown C, Ono M, Rappold T, Sieber F, Gottschalk A, Neufeld KJ, Gottesman R, Adachi H, Hogue CW. Arterial pressure above the upper cerebral autoregulation limit during cardiopulmonary bypass is associated with postoperative delirium. Br J Anaesth. 2014 Dec;113(6):1009-17. doi: 10.1093/bja/aeu319. Epub 2014 Sep 25.