AI Article Synopsis
- The study evaluates carotid elasticity in post-radiotherapy patients with nasopharyngeal carcinoma (NPC) who have normal heart function, using wave intensity measures.
- It involved 67 NPC patients divided into two groups based on carotid thickness, compared with a control group of 30 non-irradiated patients.
- The results showed increased stiffness and decreased compliance in NP groups, highlighting that radiotherapy may negatively impact carotid artery health despite normal heart function.
Article Abstract
Purpose: This study aims to assess carotid elasticity early in normal left ventricular function in post-radiotherapy patients with nasopharyngeal carcinoma (NPC) by wave intensity.
Methods: Sixty-seven post-radiotherapy patients all with normal left ventricular function were classified into group NPC1 and group NPC2 based on their carotid intima-media thickness. Thirty age- and sex-matched NPC patients without any history of irradiation and chemotherapy were included as a control group. Carotid parameters, including stiffness constant (β), pressure-strain elastic modulus (Ep), arterial compliance (AC), stiffness constant pulse wave velocity (PWVβ), and wave intensity pulse wave velocity (PWVWI) were measured.
Results: There were no significant differences in conventional echocardiographic variables among the three groups. In comparison with the control group, β, Ep, PWVβ, and PWVWI were significantly increased, while AC was significantly decreased in the NPC1 and NPC2 groups, and there were differences between the NPC1 group and NPC2 group (all P < 0.05).
Conclusion: This study suggested that carotid artery stiffness increased with reduced carotid compliance in post-RT with NPC.
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| http://dx.doi.org/10.1007/s10396-017-0817-2 | DOI Listing |
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