101. EVOLUŢIA PARAMETRILOR DE EC OGRAFIE ARTERIALĂ HUMERALĂ ÎN CURSUL COMPENSĂRII INSUFICIENŢEI CARDIACE CONGESTIVE, LA PACIENŢI CU CARDIOPATIE DE FOND HIPERTENSIVĂ SAU ISCHEMICĂ.
- Author
-
Olinic, Maria, Homorodean, Călin, and Olinic, Dan
- Subjects
- *
VASODILATION , *HEART failure , *BLOOD pressure , *HYPERTENSION , *ENDOTHELIAL growth factors - Abstract
Aims. Flow mediated vasodilatation (FMD) is impaired in chronic congestive heart failure (CHF). An inverse correlation exists between humeral artery diameter (HAD) and FMD, related to the shearing stress magnitude. Material and Methods. This study investigates the influence on HAD and FMD exerted by the presence and severity of congestive status in heart failure. The study included 16 p with ischemic cardiomiopathy (group A) and 20 p with hypertensive cardiomiopathy (group B), all in sinus rythm. Recordings were made before and after the correction of the congestive state and control of blood pressure. Data recorded at the beginning and the end of hospital stay, in each of the groups, were compared; data were also compared between the two groups. Results. In group A, a significant HAD decrease at rest was found, during correction of the congestive status (4.8±0.2 mm vs. 3.9±0.1 mm, p<0.001), as well as a significant FMD increase (5.4±0.9 mm vs. 7.8±0.8 mm, p<0.001). Similar data were found in group B, after congestive status correction and blood pressure control: significant rest HAD decrease (4.8±0,2 vs. 4.0±0.1 mm, p<0.001) and significant FMD increase (5.4±0.9 vs. 7.8±0.8 mm, p<0.001). The magnitude (%) of the HAD decrease after the congestive status correction in the two groups, was similar (17.3±5.3 vs. 17.3±3.4, NS). Conclusions. Congestive status in heart failure is associated not only with venous congestion, but also with arterial diameter increase. The congestion corection in CHF is associated with an arterial diameter decrease, which could in turn lead to an improvement of the impaired endothelial function. [ABSTRACT FROM AUTHOR]
- Published
- 2011