Costa MACD, Gauer MF, Gomes RZ, Schafranski MD. Risk factors for perioperative ischemic stroke in cardiac surgery.
Braz J Cardiovasc Surg 2016;
30:365-72. [PMID:
26313728 PMCID:
PMC4541784 DOI:
10.5935/1678-9741.20150032]
[Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 05/12/2015] [Indexed: 11/20/2022] Open
Abstract
Objective
The purpose of this study was to evaluate the risk factors for ischemic stroke in
patients undergoing cardiac surgery.
Methods
From January 2010 to December 2012, 519 consecutive patients undergoing cardiac
surgery were analyzed prospectively. The sample was divided into two groups:
patients with stroke per and postoperative were allocated in Group GS (n=22) and
the other patients in the group CCONTROL (n=497). The following variables were
compared between the groups: gender, age, carotid stenosis ≥ 70%, diabetes
on insulin, chronic obstructive pulmonary disease, peripheral arteriopathy,
unstable angina, kidney function, left ventricular function, acute myocardial
infarction, pulmonary arterial hypertension, use of cardiopulmonary bypass.
Ischemic stroke was defined as symptoms lasting over 24 hours associated with
changes in brain computed tomography scan. The variables were compared using
Fisher’s exact test, Chi square, Student’s t-test and logistic regression.
Results
Stroke occurred in 4.2% of patients and the risk factors statistically significant
were: carotid stenosis of 70% or more (P=0.03; OR 5.07; IC 95%:
1.35 to 19.02), diabetes on insulin (P=0.04; OR 2.61; IC 95%:
1.10 to 6.21) and peripheral arteriopathy (P=0.03; OR 2.61; 95%
CI: 1.08 to 6.28).
Conclusion
Risk factors for ischemic stroke were carotid stenosis of 70% or more, diabetes on
insulin and peripheral arteriopathy.
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