Changes of common carotid artery wave intensity in coronary heart disease patients with decreased left ventricular ejection fraction
10.3724/SP.J.1008.2013.00754
- Author:
Xin-Iiang XU
1
Author Information
1. Department of Uitrasound, Changhal Hospital, Second Military Medical University
- Publication Type:Journal Article
- Keywords:
Coronary artery disease;
Left ventricular systolic funison;
Ultrasonography;
Wave intensity
- From:
Academic Journal of Second Military Medical University
2013;34(7):754-758
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the changes of wave intendy (WI) of the left common carotid artery (LCCA) in coronaryarterydisease (CAD) patients with decreased left ventricular ejection fraction (LVEF). Methods Forty-one CAD patients conitrmed by coronary angiography (CAG) were drnded into group A, LVEF >50%, 23 cases; group B, LVEF^ 50%, 18 cases. The patients nncluded 26 males and 15 females, with an average age of (59. 68 ± 7. 61) years old. Normal controis (group C) had 35 partisipants, including 23 males and 12 females, with an average age of (61. 69± 13. 48) years old. All the participants underwent conventional echocardlographi examination and left common carotid WI analyiis (2-D color Doppler ultrasound), and the relationship and changes of the LCCA WI values were compared between group A and group B. Resulis The LCCA intima-media thickness (IMT) nn CAD patients were signiticancly thicker than that in the normal controis (P<0. 05), and W1 and W2 values were signiticancly lower than those nn the normal conirois (P<0. 05). The W1, W2 values ingroup A and group B showed a decreadng trend with the decrease of LVEF values, with W1 value of group B bang signiticantiy lower than group A (P<0. 05); espedally that, for seven partidpants with LVEF<35% nn group B, the W1 and W2 valueswere only (3. 32± 1. 91) and (1. 09±0. 41) mmHgl(m • s2), respectivdy. Under the same arterial blood pressure level, the W1 and W2 values were positivcly correlated with each other in all the partidpants of this study (r = 0. 41,P<0. 05), and the W1 value was positivcly correlated with the LVEF (r=0. 60,P<0. 05). Conclusion The W1 and W2 indices of LCCA erived from carotid WI analysis can reflect the left ventricular systolic function of CAD patients, and can serve as a valuable indicator for evaluating the peripheral hemodynamic changes.
