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Articles by R. L. Sacco
Total Records ( 2 ) for R. L. Sacco
  G. C Fonarow , T Gregory , M Driskill , M. D Stewart , C Beam , J Butler , A. K Jacobs , N. M Meltzer , E. D Peterson , L. H Schwamm , J. A Spertus , C. W Yancy , G. F Tomaselli and R. L. Sacco
 

Cardiovascular disease and stroke remain leading causes of mortality, disability, and rising healthcare expenditures in the United States. Although a number of organizations provide hospital accreditation, recognition, and certification programs, existing programs do not address cardiovascular disease and stroke care in a comprehensive way. Current evidence suggests mixed findings for correlation between accreditation, recognition, and certification programs and hospitals' actual quality of care and outcomes. This advisory discusses potential opportunities to develop and enhance hospital certification programs for cardiovascular disease and stroke. The American Heart Association/American Stroke Association is uniquely positioned as a patient-centered, respected, transparent healthcare organization to help drive improvements in care and outcomes for patients hospitalized with cardiovascular disease and stroke. As a part of its commitment to promoting high-quality, evidence-based care for cardiovascular and stroke patients, it is recommended that the American Heart Association/American Stroke Association explore hospital certification programs to develop truly meaningful programs to facilitate improvements in and recognition for cardiovascular disease and stroke quality of care and outcomes. Future strategies should standardize objective, unbiased assessments of hospital structural, process, and outcome performance while allowing flexibility as technology and methodology advances occur.

  L Wang , M. R Di Tullio , A Beecham , S Slifer , T Rundek , S Homma , S. H Blanton and R. L. Sacco
  Background—

Left atrial (LA) enlargement is associated with cardiovascular disease and stroke. Genetic factors contributing to the LA dimension are poorly understood. We sought to map susceptibility genes for LA size in a large Dominican family data set and an independent population-based sample from the Northern Manhattan Study.

Methods and Results—

One hundred Dominican families comprising 1350 individuals were studied to estimate heritability and map quantitative trait loci for LA size using variance components analysis. LA dimension was measured by transthoracic echocardiography. A polygenic covariate screening was used to identify significant covariates. LA size had a moderate estimate of heritability (h2=0.42) after adjusting for significant covariates. Linkage analysis revealed suggestive evidence on chromosome 10p19 (D10S1423, MLOD=2.00) and 17p10 (D17S974, MLOD=2.05). Ordered subset analysis found significantly enhanced (P<0.05 for increase of LOD score) evidence for linkage at 17p10 (MLOD=2.9) in families with lower LDL level. Single nucleotide polymophisms (n=2233)were used to perform a peak-wide association mapping across 17p10 in 825 NOMAS individuals. Evidence for association were found in NTN1, MYH10, COX10, and MYOCD genes (P=0.00005 to 0.005).

Conclusions—

Using nonbiased genome-wide linkage followed by peak-wide association analysis, we identified several possible susceptibility genes affecting LA size. Among them, MYOCD has been shown to serve as a key transducer of hypertrophic signals in cardiomyocytes. Our data support that polymorphisms in MYOCD modify LA size.

 
 
 
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