OBJECTIVES: To assess incidence and volume of fetomaternal hemorrhage (FMH) after chorionic villus sampling (CVS) by Kleihauer Betke test (KBT) and rise in maternal protein (MSAFP). METHODS: A prospective study was conducted on 61 cases requiring CVS. FMH due to CVS was assessed by KBT and MSAFP. RESULTS: Out of 61 cases, 60 (98.36%) cases showed FMH by MSAFP while all showed FMH by KBT. Median volume of FMH detected by MSAFP was 0.06 mL (25 to 75th interquartile (IQR) 0.01 to 0.12 mL) and by KBT was 0.45 mL (25 to 75th IQR 0.09 to 0.90). Mean volume of FMH detected by MSAFP was 0.1 + 0.1424 mL and by KBT was 0.58 + 0.637 mL. Significant FMH up to 0.1 mL was found in 20 (32.8%) and 45 (60.6%) by MSAFP and KBT respectively. CONCLUSION: MSAFP and KBT are sensitive to detect FMH. KBT estimates more FMH than MSAFP. Fifty micrograms of anti-D is sufficient to cover FMH during CVS. (c) 2006 John Wiley & Sons, Ltd.
OBJECTIVES: To assess incidence and volume of fetomaternal hemorrhage (FMH) after chorionic villus sampling (CVS) by Kleihauer Betke test (KBT) and rise in maternal protein (MSAFP). METHODS: A prospective study was conducted on 61 cases requiring CVS. FMH due to CVS was assessed by KBT and MSAFP. RESULTS: Out of 61 cases, 60 (98.36%) cases showed FMH by MSAFP while all showed FMH by KBT. Median volume of FMH detected by MSAFP was 0.06 mL (25 to 75th interquartile (IQR) 0.01 to 0.12 mL) and by KBT was 0.45 mL (25 to 75th IQR 0.09 to 0.90). Mean volume of FMH detected by MSAFP was 0.1 + 0.1424 mL and by KBT was 0.58 + 0.637 mL. Significant FMH up to 0.1 mL was found in 20 (32.8%) and 45 (60.6%) by MSAFP and KBT respectively. CONCLUSION: MSAFP and KBT are sensitive to detect FMH. KBT estimates more FMH than MSAFP. Fifty micrograms of anti-D is sufficient to cover FMH during CVS. (c) 2006 John Wiley & Sons, Ltd.