Cefazolin concentration in the mediastinal adipose tissue of patients undergoing cardiac surgery
Rev. bras. cir. cardiovasc
;
32(4): 239-244, July-Aug. 2017. tab, graf
Article
Dans Anglais
| LILACS
| ID: biblio-897930
ABSTRACT
Abstract Objective:
To measure the concentration of cefazolin in the anterior mediastinal adipose tissue of patients undergoing cardiac surgery, determining the variation of cefazolin concentration.Methods:
Two samples of approximately 1g of subcutaneous tissue were collected from 19 patients who underwent surgery in December 2015 the first sample was collected right after sternotomy and the second one, before sternal synthesis with steel wires. Antibiotic dosage was administered through high performance liquid chromatography.Results:
We observed a positive and statistically significant correlation between time 1 and cefazolin concentration (r=0.489 and P=0.039). For time 2 and cefazolin concentration, there was a negative and statistically significant correlation between both variables (r=-0.793 and P<0.001). A negative correlation was also observed between body mass index and cefazolin concentration at time 2 (r=-0.510 and P=0.031). The regression model showed that every 1-minute increase in time 1 corresponded to an increase of 0.240 µg/dL in cefazolin concentration, whereas every 1-minute increase in time 2 corresponded to a reduction of 0.046 µg/dL in cefazolin concentration. As for body mass index, every 1 kg/m2 increase corresponded to a reduction of about 0.510 µg/dL in cefazolin concentration.Conclusion:
There was a positive and significant correlation between the initial time of surgery and cefazolin level in the first dosage. The evaluation of the second dosage showed a negative and significant correlation between cefazolin level and the second time of dosage. The concentration of cefazolin is under the influence of body mass index.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Céfazoline
/
Tissu adipeux
/
Médiastin
/
Antibactériens
Type d'étude:
Étude pronostique
Limites du sujet:
Adulte
/
Adulte très âgé
/
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Rev. bras. cir. cardiovasc
Thème du journal:
Cardiologie
/
Chirurgie générale
Année:
2017
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Hospital Dom Helder Câmara/BR
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