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Mặc dù giá trị tiên đoán âm cao (99% và 93% cho ngưỡng của 15 và 100 cfu, tương ứng), các giá trị dự báo dương tính vẫn ở mức thấp, 46% và 56%, tương ứng). Kết quả tương tự cũng được báo cáo bởi Rello et al. phê bình các bệnh nhân bị bệnh bằng cách sử dụng các ngưỡng 15 và 50 | Gérard Nitenberg and Francois Blot 63 Although the negative predictive values were high 99 and 93 for thresholds of 15 and 100 cfu respectively the positive predictive values remained low 46 and 56 respectively . Similar findings were reported byRello eiaZ.incriticallyillpatients using ttaesholds of 15 and 50 cfu 13 . Interestingly a study of 197 CVCs comparing the value of semi-quantitative tip ihihiires plated at the bedside withthose cultured in the laboratory hiteeeeled ehat brnsde piating could bemyra eentilivedi ail roh pbile tadiihis perfoeme5 in eer labaeatory 14 . It is coneeivaWe tier oiganisini ouch atCandida a pi.i killwnto torivamhKÚsi envsreamtnts may not snide nr tae a prolong pt tied 71 diypkislf ip daces 1 In iiiinniaiy. althneigh phyticiann dee so be ewaeeiiHha hmiiatiovs ae ane inehpiale1 eehute id eeen-tdlaeiilalihi thidire technique nr i aiddtedan eany aan tam. apo fend ns toe iHiisi eonnnonẠ hsed methoa waeMiwMe ani liiediagios odlodidcadl callleieviiet ykiia allyn. QuanlilativeCatoiatT-TlpCuhuenTin hoiqueo Hia tpiininai1 vnliiidhii1 lidnKitiiprtyisedby Oerie to. dcrmas he naploreanty Ida ilVeleleiieallyiOtle CVCdã tvd demonstrated that when using a threshold for positivity of 103 cfu ml a good correlation with eallieler-relaledbaelereinias WU5 shown. However the method is cumbersome and not always easy to perform. Theseforeiayimpliocaticnha eiieiecIuúouehPhrou ii IK1 did al pael ci urinh eathhter tyiii 1ey2. m tieiile walbi was proposed by ihentvieiseyd de X di the ednaninoe li ecploemg hyib die axternnl and nileisd eindct ie tha aeideiee dnA enaislliildat eih eto oú was correlated with systemic signs of infectioid whli ie whhout tathater-assoiiated baalareind and exhibhed toll specifidiy i S Swlandseneiliiily ioa.5 e m CTitìua viU patieriie ail1 cvc i.pìhi aue yeaeael dars medic t . Anatole techrnqul for qu atíin o c alin iinnitv criHrirc usto0 hh i t onit i tKm la dahnd baclanaailliereal to die eatoetee dwea tinitoif tatohs 17 . Id .
