Key result
In haemodialysis patients without significant comorbidities, carotid artery intima-media thickness increased significantly over 1 year (from 0.59 mm to 0.64 mm; P<0.001), with age and male sex as independent predictors.
Cohort (n=54)
Absolute Event Rate: 0.64% vs 0.59%
p-value: p=<0.001
In young haemodialysis patients without significant comorbidities, carotid atherosclerosis progresses significantly over 1 year, driven primarily by age, male sex, and non-specific inflammation.
Carotid atherosclerosis progresses in low-comorbidity haemodialysis patients; hypothesis-generating and should not yet change practice or guide interventions.
AIM: The aim of this prospective study was to assess the determinants of the progression of carotid artery intima-media thickness (CA-IMT) for 1 year in haemodialysis (HD) patients without significant comorbidities. METHODS: Fifty-four HD patients younger than 55 years, without diabetes, obesity and any clinical evidence of cardiovascular disease (29 men, 25 women; mean age 33.3 +/- 10 years; mean time on HD 49.4 +/- 43 months) were included in the 1-year study. CA-IMT was assessed at baseline and after 12 months. The difference in IMT between these two points of time was calculated (DeltaCA-IMT). C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), haematocrit-corrected ESR, beta-2 microglobulin, cardiac troponin I, lipid profile, fibrinogen, homocysteine, CaXP product, intact parathyroid hormone, haematocrit, albumin, uric acid levels, anthropometric parameters (age, body mass index), smoking, hypertension and left ventricular hypertrophy were recorded at baseline. RESULTS: The mean value for CA-IMT at baseline (0.59 +/- 0.05 mm) was significantly lower than that at 12 months (0.64 +/- 0.07 mm) (P < 0.001). CA-IMT had increased in 41 patients (75.9%). Age (P = 0.02), CRP (P = 0.03), beta-2 microglobulin (P = 0.001) and left ventricular hypertrophy (P = 0.01) were independently related with CA-IMT at baseline. Age (P = 0.003) and CRP (P = 0.04) were the independent variables related with CA-IMT, measured at 12 months. DeltaCA-IMT correlated positively with age (r = 0.31, P < 0.05). Age and sex were independent predictors of DeltaCA-IMT (R(2) for the model 0.56). CONCLUSION: In addition to age and male sex, non-specific inflammation may have a possible role in the progression of atherosclerosis in HD patients without significant comorbidities.
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Zumrutdal et al. (2006) conducted a cohort in Haemodialysis without significant comorbidities (n=54). Age, male sex, and inflammation was evaluated on Carotid artery intima-media thickness (CA-IMT) at 12 months compared to baseline (p=<0.001). In haemodialysis patients without significant comorbidities, carotid artery intima-media thickness increased significantly over 1 year (from 0.59 mm to 0.64 mm; P<0.001), with age and male sex as independent predictors.
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