Serum phosphate is an independent predictor of the total aortic calcification volume in non-hemodialysis patients undergoing cardiovascular surgery.
J Cardiol
; 68(4): 308-15, 2016 10.
Article
en En
| MEDLINE
| ID: mdl-26572956
ABSTRACT
BACKGROUND:
A high serum phosphate level is a well-known risk factor for vascular calcification (VC) in patients on hemodialysis (HD). However, the association between the serum phosphate level and VC in non-HD patients is unclear. Our aim was to assess the impact of serum phosphate level on aortic calcification (AC) volume in non-HD patients undergoing cardiovascular surgery.METHODS:
A total of 117 patients who underwent thoracoabdominal computed tomography as a preoperative general evaluation before cardiovascular surgery were enrolled. The total AC volume was quantified using the volume-rendering method by extracting the area ≥130HU within the entire aorta. The total AC volume index (AC-VI) was estimated as the total AC volume divided by the body surface area.RESULTS:
In the 117 patients (64.7±13.1 years, 39% women), the median total AC-VI was 1.23mL/m(2). The mean estimated glomerular filtration rate (eGFR), adjusted serum calcium levels, and serum phosphate levels were 63.8±19.9mL/min/1.73m(2), 9.1±0.4mg/dL, and 3.6±0.6mg/dL, respectively. When the patients were classified into four quartiles based on their total AC-VI value, the serum phosphate level showed a positive correlation with a probability of being in the highest AC-VI quartile (R(2)=0.0146, p=0.0383) whereas the adjusted serum calcium level did not show a significant correlation (R(2)=0.0040, p=0.2615). A similar relationship between the serum phosphate level, adjusted serum calcium level, and AC-VI was confirmed when the total AC-VI was divided into the thoracic AC-VI and abdominal AC-VI. Multivariate analysis indicated that the serum phosphate level was an independent positive predictor of higher total AC-VI quartiles (ß=0.8013, p=0.0160).CONCLUSIONS:
An increase in serum phosphate level was associated with an increased AC burden in non-HD patients undergoing cardiovascular surgery.Palabras clave
Texto completo:
1
Colección:
01-internacional
Asunto principal:
Enfermedades de la Aorta
/
Fosfatos
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Calcificación Vascular
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Aged
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
J Cardiol
Asunto de la revista:
CARDIOLOGIA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Japón