Limits...
Global Coronary Artery Plaque Area is Associated with Myocardial Hypoperfusion in Women with Non-ST Elevation Myocardial Infarction.

Eskerud I, Gerdts E, Nordrehaug JE, Lønnebakken MT - J Womens Health (Larchmt) (2015)

Bottom Line: Age, prevalence of hypertension, and diabetes did not differ between sexes (all nonsignificant).In multivariate analysis, larger coronary artery plaque area was associated with a 35% higher risk for having severe myocardial hypoperfusion (odds ratio 1.35 [95% confidence interval 1.01-1.80], p<0.05) in the total study population, while no association between artery tortuosity and myocardial ischemia was found.Similar results were obtained in separate analysis among women and men.

View Article: PubMed Central - PubMed

Affiliation: Department of Clinical Science, University of Bergen , Bergen, Norway .

ABSTRACT

Background: Women with non-ST elevation myocardial infarction (NSTEMI) have similar extent of myocardial ischemia but less obstructive coronary artery disease (CAD) than their male counterparts. We tested the impact of global coronary artery plaque area and artery tortuosity on myocardial perfusion in NSTEMI patients.

Methods: Coronary artery plaque area was determined by quantitative angiography in 108 patients (32% women) with NSTEMI. Myocardial perfusion was assessed by contrast echocardiography in the 17 individual left ventricular segments. Artery tortuosity was defined as ≥3 curves >45° in a main coronary artery.

Results: Age, prevalence of hypertension, and diabetes did not differ between sexes (all nonsignificant). Women had lower prevalence of ≥50% coronary artery stenosis (74% vs. 91%, p<0.05), while global coronary plaque area (35±22 vs. 43±21mm(2)) and the number of segments with hypoperfusion (6.9±3.7 vs. 7.2±3.4) did not differ between sexes (both p>0.07). In multivariate analysis, larger coronary artery plaque area was associated with a 35% higher risk for having severe myocardial hypoperfusion (odds ratio 1.35 [95% confidence interval 1.01-1.80], p<0.05) in the total study population, while no association between artery tortuosity and myocardial ischemia was found. Similar results were obtained in separate analysis among women and men.

Conclusion: In women and men with NSTEMI, the global coronary artery plaque area was an important determinant of the severity of myocardial hypoperfusion at rest independent of presence of significant coronary stenoses. These findings may expand current understanding of NSTEMI in patients with nonobstructive CAD.

No MeSH data available.


Related in: MedlinePlus

Global coronary artery plaque area and severe myocardial hypoperfusion. Receiver operating curve analysis of the univariate association of presence of severe myocardial hypoperfusion with global coronary plaque area and presence of significant coronary artery stenosis in women and men.
© Copyright Policy - open-access
Related In: Results  -  Collection


getmorefigures.php?uid=PMC4440999&req=5

f3: Global coronary artery plaque area and severe myocardial hypoperfusion. Receiver operating curve analysis of the univariate association of presence of severe myocardial hypoperfusion with global coronary plaque area and presence of significant coronary artery stenosis in women and men.

Mentions: Global coronary artery plaque area did not differ significantly between women and men despite lower prevalence of significant coronary artery stenoses and multivessel disease in women (Table 2). In receiver operating characteristic curve analysis, global coronary artery plaque area was significantly associated with having severe myocardial hypoperfusion in both women and men, while presence of significant coronary artery stenosis was significantly associated with severe myocardial hypoperfusion only in women, probably reflecting the low prevalence of nonobstructive CAD in men (Fig. 3).


Global Coronary Artery Plaque Area is Associated with Myocardial Hypoperfusion in Women with Non-ST Elevation Myocardial Infarction.

Eskerud I, Gerdts E, Nordrehaug JE, Lønnebakken MT - J Womens Health (Larchmt) (2015)

Global coronary artery plaque area and severe myocardial hypoperfusion. Receiver operating curve analysis of the univariate association of presence of severe myocardial hypoperfusion with global coronary plaque area and presence of significant coronary artery stenosis in women and men.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4440999&req=5

f3: Global coronary artery plaque area and severe myocardial hypoperfusion. Receiver operating curve analysis of the univariate association of presence of severe myocardial hypoperfusion with global coronary plaque area and presence of significant coronary artery stenosis in women and men.
Mentions: Global coronary artery plaque area did not differ significantly between women and men despite lower prevalence of significant coronary artery stenoses and multivessel disease in women (Table 2). In receiver operating characteristic curve analysis, global coronary artery plaque area was significantly associated with having severe myocardial hypoperfusion in both women and men, while presence of significant coronary artery stenosis was significantly associated with severe myocardial hypoperfusion only in women, probably reflecting the low prevalence of nonobstructive CAD in men (Fig. 3).

Bottom Line: Age, prevalence of hypertension, and diabetes did not differ between sexes (all nonsignificant).In multivariate analysis, larger coronary artery plaque area was associated with a 35% higher risk for having severe myocardial hypoperfusion (odds ratio 1.35 [95% confidence interval 1.01-1.80], p<0.05) in the total study population, while no association between artery tortuosity and myocardial ischemia was found.Similar results were obtained in separate analysis among women and men.

View Article: PubMed Central - PubMed

Affiliation: Department of Clinical Science, University of Bergen , Bergen, Norway .

ABSTRACT

Background: Women with non-ST elevation myocardial infarction (NSTEMI) have similar extent of myocardial ischemia but less obstructive coronary artery disease (CAD) than their male counterparts. We tested the impact of global coronary artery plaque area and artery tortuosity on myocardial perfusion in NSTEMI patients.

Methods: Coronary artery plaque area was determined by quantitative angiography in 108 patients (32% women) with NSTEMI. Myocardial perfusion was assessed by contrast echocardiography in the 17 individual left ventricular segments. Artery tortuosity was defined as ≥3 curves >45° in a main coronary artery.

Results: Age, prevalence of hypertension, and diabetes did not differ between sexes (all nonsignificant). Women had lower prevalence of ≥50% coronary artery stenosis (74% vs. 91%, p<0.05), while global coronary plaque area (35±22 vs. 43±21mm(2)) and the number of segments with hypoperfusion (6.9±3.7 vs. 7.2±3.4) did not differ between sexes (both p>0.07). In multivariate analysis, larger coronary artery plaque area was associated with a 35% higher risk for having severe myocardial hypoperfusion (odds ratio 1.35 [95% confidence interval 1.01-1.80], p<0.05) in the total study population, while no association between artery tortuosity and myocardial ischemia was found. Similar results were obtained in separate analysis among women and men.

Conclusion: In women and men with NSTEMI, the global coronary artery plaque area was an important determinant of the severity of myocardial hypoperfusion at rest independent of presence of significant coronary stenoses. These findings may expand current understanding of NSTEMI in patients with nonobstructive CAD.

No MeSH data available.


Related in: MedlinePlus