Early atherosclerosis and arterial compliance in children with cardiovascular risk factors

    Authors

    Keywords

    preatherosclerosis, arterial stiffness, arterial compliance, diabetes mellitus, obesity

    DOI

    https://doi.org/10.15836/ccar2016.501

    Full Text

    **Introduction:** Early atherosclerosis is asymptomtic, and clinical manifestations are visible relatively late. (1-3) **Patients and Methods:** To determine parameters of arterial stiffness in pediatric patients with preatherosclerosis, in cooperation with Department of Pediatric Endocrinology, we have analyzed 148 patients, 68 obese, 42 with diabetes mellitus type 1 with duration over 5 years, and 38 controls. Patients did not have clinical manifestations of atherosclerosis. The groups were formed due to well-known influence of diabetes and obesity as a risk factors for cardiovascular disease. In our study pediatric patients with diabetes mellitus type 1, obese patients and controls were screened with e-tracking ultrasound method. Novel methods for determination of arterial stiffness by ultrasound e-tracking analysis is easy, safe and reproducible allowing measurement of parameters like Beta stiffness index, pulse wave velocity (PWV), augmentation index (AI), arterial compliance (AC) and elasticity modulus (Ep). Common carotid artery is analyzed 1-2 cm from bifurcation on anterior and posterior wall of vessel. Accurate image of intima-media border is essential for analysis. By positioning the tracking gate on arterial wall we can measure deformation of artery during cardiac cycle. **Results:** We found significant difference in AC (p=0.004) and intima media thickness (p=0.022) between all groups. Also, significant difference between group was found in IMT (diabetic patients vs. control, p=0.015), in IMT (diabetic vs. control, p=0.002) and in AC (diabetic patients vs. obese patients, p=0.004). **Conclusion:** Arterial compliance is most sensitive parameter of early atherosclerosis. Intima-media thickness could be additional marker in detection of preatherosclerosis. Combination of functional arterial stiffness parameters with early morphological markers like IMT is useful in diagnosis and follow-up of these patients. According to our data diabetes mellitus is more significant risk factor than obesity in pediatric patients.

    Literature

    1. Lorenz MW, Markus HS, Bots ML, Rosvall M, Sitzer M. Prediction of clinical cardiovascular events with carotid intima-media thickness: a systematic review and meta-analysis. Circulation. 2007;115(4):459–67. https://doi.org/10.1161/CIRCULATIONAHA.106.628875
    2. Van Bortel LM, Duprez D, Starmans-Kool MJ, Safar ME, Giannattasio C, Cockcroft J, et al. Clinical applications of arterial stiffness, Task Force III: recommendations for user procedures. Am J Hypertens. 2002 May;15(5):445–52. https://doi.org/10.1016/S0895-7061(01)02326-3
    3. Lee E, Emoto M, Teramura M, Tsuchikura S, Ueno H, Shinohara K, et al. The combination of IMT and stiffness parameter beta is highly associated with concurrent coronary artery disease in type 2 diabetes. J Atheroscler Thromb. 2009 Mar;16(1):33–9. https://doi.org/10.5551/jat.E605
    Cardiologia Croatica
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    Early atherosclerosis and arterial compliance in children with cardiovascular risk factors

    Extended Abstract
    Issue10-11
    Published
    Pages501
    PDF via DOIhttps://doi.org/10.15836/ccar2016.501
    preatherosclerosis
    arterial stiffness
    arterial compliance
    diabetes mellitus
    obesity

    Authors

    Krešimir Putarek*ORCIDUniversity of Zagreb School of Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
    Ljiljana BanfićORCIDUniversity of Zagreb School of Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
    Marijan PašalićORCIDUniversity of Zagreb School of Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
    Anita Špehar UroićORCIDUniversity of Zagreb School of Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
    Nataša Rojnić PutarekORCIDUniversity of Zagreb School of Medicine, University Hospital Centre Zagreb, Zagreb, Croatia

    *Correspondence email: kputarek@hotmail.com

    Full Text

    Introduction: Early atherosclerosis is asymptomtic, and clinical manifestations are visible relatively late. (1–3)

    Patients and Methods: To determine parameters of arterial stiffness in pediatric patients with preatherosclerosis, in cooperation with Department of Pediatric Endocrinology, we have analyzed 148 patients, 68 obese, 42 with diabetes mellitus type 1 with duration over 5 years, and 38 controls. Patients did not have clinical manifestations of atherosclerosis. The groups were formed due to well-known influence of diabetes and obesity as a risk factors for cardiovascular disease. In our study pediatric patients with diabetes mellitus type 1, obese patients and controls were screened with e-tracking ultrasound method. Novel methods for determination of arterial stiffness by ultrasound e-tracking analysis is easy, safe and reproducible allowing measurement of parameters like Beta stiffness index, pulse wave velocity (PWV), augmentation index (AI), arterial compliance (AC) and elasticity modulus (Ep). Common carotid artery is analyzed 1-2 cm from bifurcation on anterior and posterior wall of vessel. Accurate image of intima-media border is essential for analysis. By positioning the tracking gate on arterial wall we can measure deformation of artery during cardiac cycle.

    Results: We found significant difference in AC (p=0.004) and intima media thickness (p=0.022) between all groups. Also, significant difference between group was found in IMT (diabetic patients vs. control, p=0.015), in IMT (diabetic vs. control, p=0.002) and in AC (diabetic patients vs. obese patients, p=0.004).

    Conclusion: Arterial compliance is most sensitive parameter of early atherosclerosis. Intima-media thickness could be additional marker in detection of preatherosclerosis. Combination of functional arterial stiffness parameters with early morphological markers like IMT is useful in diagnosis and follow-up of these patients. According to our data diabetes mellitus is more significant risk factor than obesity in pediatric patients.

    Literature

    1. 1.
      Lorenz MW, Markus HS, Bots ML, Rosvall M, Sitzer M. Prediction of clinical cardiovascular events with carotid intima-media thickness: a systematic review and meta-analysis. Circulation. 2007;115(4):459–67.DOI
    2. 2.
      Van Bortel LM, Duprez D, Starmans-Kool MJ, Safar ME, Giannattasio C, Cockcroft J, et al. Clinical applications of arterial stiffness, Task Force III: recommendations for user procedures. Am J Hypertens. 2002 May;15(5):445–52.DOI
    3. 3.
      Lee E, Emoto M, Teramura M, Tsuchikura S, Ueno H, Shinohara K, et al. The combination of IMT and stiffness parameter beta is highly associated with concurrent coronary artery disease in type 2 diabetes. J Atheroscler Thromb. 2009 Mar;16(1):33–9.DOI