کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2855626 | 1572216 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Association of Serum Triiodothyronine With B-Type Natriuretic Peptide and Severe Left Ventricular Diastolic Dysfunction in Heart Failure With Preserved Ejection Fraction
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موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
کاردیولوژی و پزشکی قلب و عروق
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چکیده انگلیسی
There are well-documented changes in thyroid hormone metabolism that accompany heart failure (HF). However, the frequency of thyroid hormone abnormalities in HF with preserved ejection fraction (HFpEF) is unknown, and no studies have investigated the association between triiodothyronine (T3) and markers of HF severity (B-type natriuretic peptide [BNP] and diastolic dysfunction [DD]) in HFpEF. In this study, 89 consecutive patients with HFpEF, defined as symptomatic HF with a left ventricular ejection fraction >50% and a left ventricular end-diastolic volume index <97 ml/m2, were prospectively studied. Patients were dichotomized into 2 groups on the basis of median T3 levels, and clinical, laboratory, and echocardiographic data were compared between groups. Univariate and multivariate linear regression analyses were performed to determine whether BNP and DD were independently associated with T3 level. We found that 22% of patients with HFpEF had reduced T3. Patients with lower T3 levels were older, were more symptomatic, more frequently had hyperlipidemia and diabetes, and had higher BNP levels. Severe (grade 3) DD, higher mitral E velocity, shorter deceleration time, and higher pulse pressure/stroke volume ratio were all associated with lower T3 levels. T3 was inversely associated with log BNP (p = 0.004) and the severity of DD (p = 0.039). On multivariate analysis, T3 was independently associated with log BNP (β = â4.7 ng/dl, 95% confidence interval â9.0 to â0.41 ng/dl, p = 0.032) and severe DD (β = â16.3 ng/dl, 95% confidence interval â30.1 to â2.5 ng/dl, p = 0.022). In conclusion, T3 is inversely associated with markers of HFpEF severity (BNP and DD). Whether reduced T3 contributes to or is a consequence of increased severity of HFpEF remains to be determined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The American Journal of Cardiology - Volume 110, Issue 2, 15 July 2012, Pages 234-239
Journal: The American Journal of Cardiology - Volume 110, Issue 2, 15 July 2012, Pages 234-239
نویسندگان
Senthil BA, Irwin MD, Sara PhD, Nausheen MD, Robert O. MD, Sanjiv J. MD,