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  • Title: Association between lamellar body count and respiratory distress in neonates.
    Author: Bahasadri S, Changizi N.
    Journal: Saudi Med J; 2005 Sep; 26(9):1414-6. PubMed ID: 16155659.
    Abstract:
    OBJECTIVE: Assessment of fetal lung maturity by a simple and rapid test has a pivotal role in obstetric managements. Lack of modern laboratory techniques in our country made us investigate whether lamellar body count (LBC) can be applied efficiently in the evaluation of fetal lung maturity. METHODS: Lamellar body count was assessed in 104 unspun amniotic fluid samples taken from pregnant women admitted at Akbar Abadi Hospital, Tehran, Iran between May 2003 and November 2003 whose fetuses were at risk for respiratory distress syndrome (RDS). Cut-off points for LBC were determined to evaluate the risk of RDS. Standard clinical and radiographic criteria were used to diagnose RDS. RESULTS: An LBC of less than 10,000 was 99.1% specific for lung immaturity (positive predictive value = 99.1%, negative predictive value = 83.5%). The LBCs of greater than 45,000 eliminates RDS (negative predictive value = 98.9%). CONCLUSION: Lamellar body count is an easy, rapid and cost-effective test to assess fetal lung maturity in high-risk fetuses. Using the cut-off points of 10,000 and 45,000, LBC can serve as the first screening test of fetal lung maturity.
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