Abstract 221: Use of Statins in Patients with Coronary Artery Aneurysms: A Pilot Study from the North American Kawasaki Disease Registry

Circulation ◽  
2015 ◽  
Vol 131 (suppl_2) ◽  
Author(s):  
Michael Khoury ◽  
Michael A Portman ◽  
Cedric Manlhiot ◽  
Anne Fournier ◽  
Rejane F Dillenburg ◽  
...  

Background: Statins have been considered as therapy for children with coronary artery aneurysms (CAA) after Kawasaki disease (KD), due to potential beneficial pleiotropic effects which might influence chronic vascular processes and inflammation. Methods: The North American Kawasaki Disease Registry was queried to identify patients who have received statins in the first 6 months following the convalescent phase of KD. Each identified patient was matched by age, gender and CAA z score to 3 patients who were statin-naïve (controls). Linear regression models adjusted for repeated measures and maximum coronary involvement were used to determine an association of statin use with longitudinal changes in coronary artery diameter z-score. Kaplan-Meier analysis was used to compare freedom from angiographically-confirmed stenosis or interventions. Results: Of 29 patients with KD and CAA (maximum coronary artery z-score >10) who received statins at any time (of n=621, 5%), 10 (9 males) patients were started within 6 months of the acute KD episode. The mean age at KD was 6.3±3.4 years (5.4±3.5 for controls, p=0.57). Mean maximum CAA z-score was 36±14 (vs. 29±16, p=0.20); 90% of statin patients and 87% of matched controls had CAAs in 3 or more branches. Linear regression analysis of 442 serial echocardiograms showed that maximum CAA z-score decreased by -1.5 (95%CI: -2.7; -0.4) SD/year (p=0.008) for control patients compared to -2.9 (95%CI: -4.4; -1.4) SD/year (p<0.001) for statin treated patients. The difference between the rate of change of CAA z-score for statin vs. control patients did not reach statistical significance (controls vs. statins: +1.4 SD/year, 95%CI: -0.6; +3.4, p=0.18). n=7 patients (3 on statin, 4 controls) developed stenosis or had revascularization, with no significant difference between groups (HR for statin group: 2.2 (0.4-11.4), p=0.41). Conclusions: This underpowered pilot study suggests that equipoise likely exists with regards to statin therapy in children with KD and CAA, and that a formal registry-nested trial might be considered.

Circulation ◽  
2015 ◽  
Vol 131 (suppl_2) ◽  
Author(s):  
Elif Seda Selamet Tierney ◽  
Andrew S Mackie ◽  
Brian W McCrindle ◽  
Mathew Mathew ◽  
Kathryn R Armstrong ◽  
...  

Background: The pharmacological management of coronary artery aneurysms (CAA) associated with Kawasaki disease (KD) is based on imperfect evidence, which may lead to considerable practice variation. Methods: Pharmacological management of patients included in the North American Kawasaki Disease Registry was reviewed. The Registry included data for 621 patients with CAA after KD (280 patients with maximum CAA z-score between 2.5-5.0, 139 with z-score 5.0-10.0 and 202 with z-score >10.0) followed at 20 medical centers. Practice variation regarding acute treatment, anti-inflammatory agents, statins, beta-blockers, antiplatelet therapy and anticoagulation were assessed. Results: Considerable practice variation existed between centers. During the acute phase, 93% of patients received at least one dose of IVIG (range: 80-100%), with 23% (range: 12-50%) receiving additional immunomodulatory treatment (22% additional IVIG, 17% steroids, 4% infliximab). Use of a 3 rd course of IVIG was infrequent (2%). All centers reported using additional IVIG or steroids for IVIG-resistant patients, but only 6 centres reported any experience with infliximab (2 commonly, 4 infrequent). Routine use of non-steroidal anti-inflammatory agents was limited to 2 centres, with 4 additional sites reporting infrequent use (10% of patients). Statins (5%), beta blockers (4%) and abciximab (3%) were mostly used by a single centre and was limited to patients with giant CAAs. Aspirin was the primary antiplatelet modality for 97% of patients, clopidogrel (10% of all patients, 23% in giant CAA) was routinely prescribed to patients with giant CAAs at 6 centres, with 2 more centres reporting infrequent use and the remainder not reporting any use. For patients with giant CAA (z-score>10.0), 46% were maintained on an antiplatelet agent alone, 17% additionally were on low molecular weight heparin(LMWH), 12% on warfarin and 25% had initially received LMWH and were later switched to warfarin. Conclusions: Given the important variations in management between centres and the poor evidence base, randomized controlled trials examining outcomes and nested in a high-quality collaborative registry may be an efficient strategy to address this gap.


Circulation ◽  
2015 ◽  
Vol 131 (suppl_2) ◽  
Author(s):  
Brian W McCrindle ◽  
Cedric Manlhiot ◽  
Kristen Sexson ◽  
Pei-Ni Jone ◽  
Mathew Mathew ◽  
...  

Background: One of the main impediments to conceiving and planning studies in children with coronary artery aneurysms (CAA) after Kawasaki disease (KD) is the lack of normative data regarding the prevalence of outcomes over time and risk factors. Methods: The North American Kawasaki Disease Registry was used to determine the prevalence of multiple clinically important outcomes of CAA after KD. All analyses were stratified by severity of CAA (small CAA with z-score = 2.5-5, medium with z-score = 5-10 and giant with z-score >10). All analyses were performed using non-parametric survival analysis. Results: n=621 patients submitted to the Registry had complete follow-up data and were included in the analysis (280 [45%] small CAA, 139 [22%] medium and 202 [33%] giant). Time-related freedom from multiple outcomes stratified by type of CAA are reported in the Table. Reduction in z-scores was strongly associated with the initial size of the lesion, with smaller lesions being more likely to decrease to a normal dimension over time. Thrombosis and stenosis were infrequent in patients without giant CAA. For those patients with giant CAA, the risk of thrombosis, myocardial infarction, angiographically-confirmed stenosis and revascularization was substantial and persisted up to 10 years after diagnosis. In addition to larger luminal diameter, other factors associated with increased risk of adverse outcomes included larger CAA longitudinal area and complex CAA (vs. isolated lesions). Conclusions: Only patients with giant CAA are at substantial risk of adverse clinical outcomes; future trials of pharmacological therapy targeting thrombosis and stenosis risk should focus on these patients.


Circulation ◽  
2015 ◽  
Vol 131 (suppl_2) ◽  
Author(s):  
Cedric Manlhiot ◽  
William T Mahle ◽  
Kevin D Hill ◽  
Jennifer S Li ◽  
Dawn Tucker ◽  
...  

Background: Children with giant coronary artery aneurysms (CAA) after Kawasaki disease (KD) are at substantial risk of thrombosis. There are currently no evidence-based guidelines for optimal thromboprophylactic therapy in these children. Methods: The North American Kawasaki Disease Registry was queried to identify all patients with giant CAA (maximum coronary artery z-score >10) and their antithrombotic therapy. Freedom from thrombosis was modelled using the Kaplan-Meier method; thrombotic complication rate was calculated per patient-year/month of follow-up. Results: n=202 patients with giant CAA were included, of whom 28 (14%) experienced either coronary artery thrombosis with or without myocardial infarction. Freedom from thrombotic complications was 92%, 85% and 79% at 3 months, 5 and 10 years after diagnosis, respectively. Non-pharmacological factors associated with increased risk of thrombotic complications included higher maximum coronary artery z-scores (HR: 1.7/+10 SD, p<0.001), higher number of coronary artery branches with giant CAA (HR: 2.6/branch, p<0.001), higher number of discrete CAA (HR: 1.4/aneurysm, p=0.001) and presence of complex CAA (involving the bifurcation or non-discrete; HR: 3.0, p=0.05). A total of 982 patient-years of follow-up were available for analysis (11% low molecular weight heparin (LMWH), 32% warfarin, 57% antiplatelet alone). All patients were maintained on ASA, with 47 patients (23%) also receiving clopidogrel. Patients while on LMWH had the highest event rate, at 1 event per 13 patient-years, compared to 1 per 39 on warfarin and 1 per 33 on no anticoagulant. However, LMWH was predominantly prescribed immediately after the acute phase, which is also the highest risk phase for thrombosis. When limiting analysis to events within 3 months of the acute phase, patients on LMWH had the lowest event rate at 1 per 46 patient-months, compared to 1 per 27 on warfarin and 1 per 33 on no anticoagulant (p=NS). Conclusions: Current thromboprophylaxis strategies in patients with giant CAA have suboptimal efficacy, and residual thrombosis risk persists. New anticoagulants/antiplatelet agents should be assessed in this population to determine if they provide better, safer and more tolerable thromboprophylaxis.


2020 ◽  
Vol 9 (15) ◽  
Author(s):  
Brian W. McCrindle ◽  
Cedric Manlhiot ◽  
Jane W. Newburger ◽  
Ashraf S. Harahsheh ◽  
Therese M. Giglia ◽  
...  

Circulation ◽  
2015 ◽  
Vol 131 (suppl_2) ◽  
Author(s):  
Brian W McCrindle ◽  

Background: Clinical research in children with Kawasaki disease (KD), particularly those with coronary artery aneurysms (CAA), is challenging due to the limited number of patients available at any single institution. This has resulted in imperfect evidence for optimal management and considerable practice variation. Methods: The North American Kawasaki Disease Registry (NAKDR) was started in July 2013 to determine the prevalence, patient-level and pharmacological risk factors for outcomes of CAA after KD. The NAKDR enrolls KD patients diagnosed from 1999-2013 with CAA (defined as any segment with a z-score >2.5). The NAKDR and its internet-based data entry portal are maintained at The Hospital for Sick Children in Toronto. Local ethics approvals and bilateral data sharing agreements are necessary for participation. Participation in the NAKDR is currently unfunded and voluntary. In September 2014, a survey on the future of the NAKDR was sent to all participating centers (response rate: 54%). Results: 45 sites have been invited, of which 37 (82%) agreed to participate. As of September 2014, 20 sites are actively submitting data; 17 are still being initiated; 706 cases have been submitted. The majority (90%) of members indicated that they wished to continue enrolling newly diagnosed patients and continue follow-up on patients already enrolled. Members were split (45% for, 55% against) as to whether the NAKDR should be expanded to include all KD patients, regardless of CAA status. Finally, while most NAKDR members (60%) indicated that site reimbursement was not an absolute condition for future participation, most members suggested that potential funding sources should be sought to expand/facilitate activities. At term, the NAKDR is expected to comprise ~1,400 patients and, if moving forward, add ~120 new KD patients with CAA per year. Conclusions: The NAKDR is an important tool for clinical research in children with CAAs after KD, and its success represents broad support from clinicians. The next step will be to formalize the NAKDR leadership structure, create standard operating procedures, and pursue prospective studies and funding.


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1397.2-1397
Author(s):  
M. Kantemirova ◽  
S. Kurbanova ◽  
Y. Novikova ◽  
A. Glazyrina ◽  
M. Azova ◽  
...  

Background:Kawasaki disease (KD) is a multifactorial disease with a genetic predisposition, systemic vasculitis complicated by the formation of coronary artery aneurysms (CAA). Its pathogenesis is based on immune inflammation with an increase in the concentration of pro-inflammatory cytokines, the level of C-reactive protein (CRP), and coagulation disorder.Objectives:to search for polymorphisms of genes cluster of differentiation CD14, CRP, fibrinogen beta chain (FGB), associated with the KD development and a predisposition to the CAA formation among patients with KD living in Moscow and the Moscow region.Methods:genotyping for gene polymorphisms CD14 –159 C>T (rs2569190), CRP 3872 C>T (rs1205), FGB – 455 G>A (rs1800790) by PCR in 31 children 1 month – 10 years old (median age 19 months [9,0; 38,5]) with KD, among them, in 10 patients the disease was complicated by CAA formation according to echocardiography, and 30 children of the control group.Results:Three out of six investigated SNPs showed statistically significant difference in genotype and allele distribution: СRP C3872T, CD14 C159T and FGB G455A. CRP gene polymorphism: in patients with KD significantly less frequent is homozygous type TT (RR 0,22, 95% CI: 0,05–0,91, p=0,0168).CD14 gene polymorphism: in control group heterozygous genotype CT is predominant, (RR 0,58, 95% CI: 0,4–0,83, p=0,0017) among patients with KD homozygous genotypes CC and TT are predominant. (RR 3,61, 95% CI: 1,14–11,49, p=0,0057).FGB gene polymorphism: genotype GA is predominant in control group (RR 0,48, 95% CI: 0,26–0,9, p=0,0149). In patients with KD significantly less frequent is homozygous type GG (RR 1,69, 95% CI: 1,03–2,8, p=0,0297).We didn’t find any significant difference in genotype and allele distribution in KD patients with and without CA lesions.Conclusion:statistically significant differences (p<0,05) were revealed in the distribution of genotypes for polymorphisms of the CD14 –159 C>T, CRP 3872 C>T and FGB –455 G>A genes among patients with KD and children of the control group; when comparing the results of KD patients with CAA and the control group, statistically significant differences (p<0,05) were revealed only in the polymorphism CD14 –159 C>T. It can be assumed that these polymorphisms are associated with the development of KD and CAA in these patients.Disclosure of Interests:None declared


2020 ◽  
pp. archdischild-2020-319810 ◽  
Author(s):  
Kevin G Friedman ◽  
Kimberlee Gauvreau ◽  
Annette Baker ◽  
Mary Beth Son ◽  
Robert Sundel ◽  
...  

ObjectivePatients with Kawasaki disease (KD) with coronary artery enlargement at diagnosis are at the highest risk for persistent coronary artery aneurysms (CAAs) and may benefit from primary adjunctive anti-inflammatory therapy beyond intravenous immunoglobulin (IVIG). We evaluate the effect of primary adjunctive corticosteroid therapy on outcomes in patients with CAA at diagnosis.DesignSingle-centre, retrospective review.PatientsPatients with KD diagnosed within 10 days of fever onset and with baseline CA z-score ≥2.5.InterventionsPrimary treatment with IVIG (n=162) versus IVIG plus corticosteroids (n=48).Main outcome measuresTreatment resistance (persistent fever >36 hours after initial treatment), CAA regression rate.ResultsOf the 92 patients with KD who received corticosteroids at our institution from 2012 to 2019, 48 met the inclusion criteria for primary adjunctive therapy. The corticosteroid group was younger and had larger baseline CAAs compared with historical controls. Demographics and laboratory values were otherwise similar between groups. The corticosteroid group had a less treatment resistance (4% vs 30%, p=0.003) and a greater improvement in C reactive protein. After adjusting for baseline CA z-score, age and baseline bilateral versus unilateral CAA, the corticosteroid group had a higher odds of (OR 2.77 (1.04, 7.42), p=0.042) and a shorter time to CAA regression (HR 1.94 (1.27, 2.96), p=0.002).ConclusionPrimary adjunctive corticosteroid therapy is associated with decreased initial treatment resistance, greater improvement in inflammatory markers and higher likelihood of CAA regression in patients who have CAA at diagnosis. Multi-centre, randomised controlled trials are needed to confirm the benefits of corticosteroids in patients with CAA at diagnosis and to compare corticosteroids with other adjunctive therapies.


Author(s):  
Mary Beth F. Son ◽  
Kimberlee Gauvreau ◽  
Susan Kim ◽  
Alexander Tang ◽  
Fatma Dedeoglu ◽  
...  

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Justin M Pick ◽  
Shuo Wang ◽  
Sharon Wagner-Lees ◽  
Sarah Badran ◽  
Jacqueline R Szmuszkovicz ◽  
...  

Introduction: Multisystem Inflammatory Syndrome in Children (MIS-C) is thought to be a delayed reaction to SARS-CoV-2 exposure. Coronary artery aneurysms (CAA) have been described in the MIS-C diagnostic criteria, with many symptoms mimicking Kawasaki disease (KD). Our institution has seen a significant rise in KD-like illness during the current COVID-19 pandemic. Objectives: We sought to describe the variation in coronary artery (CA) involvement between traditional KD and post-COVID-19 pandemic KD/MIS-C cases. Methods: We identified children admitted to our center with KD from April to June 2016 - 2017 and those with MIS-C/KD from April 1 - June 6, 2020, with review of clinical and echocardiogram data. Presence of CAA (any CA z-score ≥ +2.5), z-scores of the left main (LMCA), left anterior descending (LAD), and right coronary artery (RCA), and presence of cardiac and valvar dysfunction were evaluated. Nonparametric Wilcoxon rank sum test was used to compare the groups. Results: There were 26 patients in the 2016-17 KD group and 24 in the 2020 KD/MIS-C group; results are shown in Table 1. The groups had similar median age, and 2016-17 KD patients were more likely to be male. 2020 KD/MIS-C patients were more likely to have CAA than 2016-17 KD patients (54% vs 26%, p=0.05). The LAD had larger median z-score in 2020 KD/MIS-C than KD (p=0.017). RCA and LMCA z-scores of 2020 KD/MIS-C patients tended to be larger than 2016-17 KD but did not reach statistical significance (p=0.097, p=0.07 respectively). More 2020 KD/MIS-C patients had cardiac dysfunction, not statistically significant (13% vs 0%, p=NS), with no differences in valve function or effusion. Conclusions: Our spring 2020 cohort of MIS-C/KD patients had higher incidence of CAA, particularly larger LAD z-scores than those with KD pre-COVID-19 pandemic. Coronary arteries should be thoroughly assessed in patients presenting with MIS-C symptoms. Future studies are needed to determine long term outcomes in this cohort.


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