Acurácia da avaliação doppler velocimétrica da velocidade máxima do pico sistólico da artéria cerebral média na detecção da anemia fetal na doença hemolítica perinatal: uma revisão sistemática

Abstract

Study context is the prediction of fetal anemia in pregnant women with perinatal haemolitical disease and it has like objective to appraise the accuracy of middle cerebral artery peak systolic velocity (MCA-PSV) in fetal anemia prediction. Papers identification was identified using general bibliographic databases (MEDLINE and LILACS), and by checking reference lists of other authors. Studies were selected if observe type, pregnant woman with indirect coombs higher than 1:8, adequate technic, MCA-PSV ≥ 1,5MOM, presence of gold standard (fetal or newborn hemoglobin), and hierarchy of evidence higher or equal than four. Data from the selected studies were abstracted as 2 x 2 tables comparing the diagnostic teste result with the reference standard. Diagnostic accuracy was expressed as likelihood ratios. The review included eleven studies with a total sample of 688. Prospective patient recruitment and hierarchy of evidence one were reported in three studies. The test performance presented reasonable variation. Mari et al (2000) study was applied like best quality, with a LR(+) 8,45 and LR(-) 0,02. MCA-PSV like a fetal anemia predictor in perinatal haemolitical disease is consolidated. However, some points have to be cleared up., like the best exams interval in severe cases and method validity in after transfusional situation.