%0 Journal Article %T Diagn¨®stico molecular de candidemia mediante PCR semianidada en pacientes cr¨ªticos %A Ospina %A William Pascual %A Cort¨¦s %A Jorge Alberto %J Acta Medica Colombiana %D 2011 %I Asociacion Colombiana de Medicina Interna %X objectives: to standardize a molecular test based on semi-nested pcr for diagnosis of candidemia. methods: we developed a pilot study by means of optimizing the extraction protocol and use of ribosomal dna, amplifying the complete its-2 region of candida spp. and by semi-nested pcr reamplifying specific segments of nine clinically relevant candida species. clinical samples of plasma of critically ill patients with microbiologically proven candidemia from a third level hospital in bogot¨¢. another sample of simulated candidemia was used with candida strain form a urine sample. results: we were able to standardize this technique and achieved from clinical samples of plasma a likely sensitivity of 90% and a theoretical specificity of 100%. the detection capability of this test is up to 1 cell per 200 ¦Ìl of plasma. conclusion: a molecular test for detection of candidemia among critically ill patients was standardized (acta med colomb 2011; 36: 135-140). %K (decs) %K candidemia/microbiology %K candida %K candida/isolation & purification %K candidemia %K candidemia/diagnosis %K candidemia/microbiology %K molecular diagnostic technology %K polymerase chain reaction %K nested pcr. %U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0120-24482011000300005&lng=en&nrm=iso&tlng=en