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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References
Li CS, Schminke U, Tan TY. Extracranial carotid artery disease in nasopharyngeal carcinoma patients with post-irradiation ischemic stroke. Clin Neurol Neurosurg. 2010;112:682–6.
Dorresteijn LD, Kappelle AC, Scholz NM, et al. Increased carotid wall thickening after radiotherapy on the neck. Eur J Cancer. 2005;41:1026–30.
Yuan C, Wu VW, Yip SP, et al. Ultrasound evaluation of carotid atherosclerosis in post-radiotherapy nasopharyngeal carcinoma patients, type 2 diabetics, and healthy controls. Ultraschall Med. 2017;38:190–7.
Yuan C, Wu VW, Yip SP, et al. Predictors of the extent of carotid atherosclerosis in patients treated with radiotherapy for nasopharyngeal carcinoma. PLoS ONE. 2014;9:e116284.
Gujral DM, Shah BN, Chahal NS, et al. Arterial stiffness as a biomarker of radiation-induced carotid atherosclerosis. Angiology. 2016;67:266–71.
Parker KH, Jones CJ. Forward and backward running waves in the arteries: analysis using the method of characteristics. J Biomech Eng. 1990;112:322–6.
Sugawara M, Niki K, Ohte N, et al. Clinical usefulness of wave intensity analysis. Med Biol Eng Comput. 2009;47:197–206.
Smiseth OA, Thompson CR, Lohavanichbutr K, et al. The pulmonary venous systolic flow pulse—its origin and relationship to left atrial pressure. J Am Coll Cardiol. 1999;34:802–9.
Nie M, Kobayashi H, Sugawara M, et al. Helium inhalation enhances vasodilator effect of inhaled nitric oxide on pulmonary vessels in hypoxic dogs. Am J Physiol Heart Circ Physiol. 2001;280:H1875–81.
MacRae JM, Sun YH, Isaac DL, et al. Wave-intensity analysis: a new approach to left ventricular filling dynamics. Heart Vessels. 1997;12:53–9.
Sun YH, Anderson TJ, Parker KH, et al. Wave-intensity analysis: a new approach to coronary hemodynamics. J Appl Physiol. 1985;2000:1636–44.
Jones CJ, Sugawara M, Kondoh Y, et al. Compression and expansion wavefront travel in canine ascending aortic flow: wave intensity analysis. Heart Vessels. 2002;16:91–8.
Liu CL, Wang CZ, Wang Y, et al. Early evaluation of carotid elasticity by an instantaneous wave intensity technique in patients with systemic lupus erythematosus. J Ultrasound Med. 2014;33:2125–9.
Yu ZX, Wang XZ, Guo RJ, et al. Comparison of ultrasound echo-tracking technology and pulse wave velocity for measuring carotid elasticity among hemodialysis patients. Hemodial Int. 2013;17:19–23.
Huang TL, Hsu HC, Chen HC, et al. Long-term effects on carotid intima-media thickness after radiotherapy in patients with nasopharyngeal carcinoma. Radiat Oncol. 2013;8:261.
Bleasdale RA, Mumford CE, Campbell RI, et al. Wave intensity analysis from the common carotid artery: a new noninvasive index of cerebral vasomotor tone. Heart Vessels. 2003;18:202–6.
Spence JD, Koschinsky M. Mechanisms of lipoprotein(a) pathogenicity: prothrombotic, proatherosclerotic, or both? Arterioscler Thromb Vasc Biol. 2012;32:1550–1.
Antonini-Canterin F, Rosca M, Beladan CC, et al. Echo-tracking assessment of carotid artery stiffness in patients with aortic valve stenosis. Echocardiography. 2009;26:823–31.
Chow B, Rabkin SW. The relationship between arterial stiffness and heart failure with preserved ejection fraction: a systemic meta-analysis. Heart Fail Rev. 2015;20:291–303.
Vriz O, Favretto S, Jaroch J, et al. Left ventricular function assessed by one-point carotid wave intensity in newly diagnosed untreated hypertensive patients. J Ultrasound Med. 2017;36:25–35.
Sugawara M, Niki K, Furuhata H, et al. Relationship between the pressure and diameter of the carotid artery in humans. Heart Vessels. 2000;15:49–51.
Devereux RB, Roman MJ, de Simone G, et al. Relations of left ventricular mass to demographic and hemodynamic variables in American Indians: the strong heart study. Circulation. 1997;96:1416–23.
Lam WW, Leung SF, So NM, et al. Incidence of carotid stenosis in nasopharyngeal carcinoma patients after radiotherapy. Cancer. 2001;92:2357–63.
Cheng SW, Wu LL, Ting AC, et al. Irradiation-induced extracranial carotid stenosis in patients with head and neck malignancies. Am J Surg. 1999;178:323–8.
Wilkinson IB, Franklin SS, Hall IR, et al. Pressure amplification explains why pulse pressure is unrelated to risk in young subjects. Hypertension. 2001;38:1461–6.
Acknowledgements
Thanks to Jie Li, Juan Li, and Jingbin Shi from the Department of Radiation Oncology, the Second Affiliated Hospital of Dalian Medical University, China for helping in collection of the cases.
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All participants provided their written consent for participation in this study. The design proposal and methods of data collection and analysis in this study were approved by the Ethics Committee of the Hospital.
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There are no financial or other relations that could lead to a conflict of interest.
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Zhang, Z., Luo, R., Tan, B. et al. Carotid artery stiffness evaluated early by wave intensity in normal left ventricular function in post-radiotherapy patients with nasopharyngeal carcinoma. J Med Ultrasonics 45, 301–306 (2018). https://doi.org/10.1007/s10396-017-0817-2
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DOI: https://doi.org/10.1007/s10396-017-0817-2