1. Cord Blood pH and Lactate- A Step Ahead in Diagnosis of Fetal Acidaemia in Patients with Abnormal Cardiotocography.
- Author
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MUKHOPADHYAY, Indrani, SINGH, Sanjay, and KACHATTI, Sushila
- Subjects
DIAGNOSIS of fetal diseases ,HYDROGEN-ion concentration ,STATISTICAL correlation ,BLOOD gases analysis ,DELIVERY (Obstetrics) ,T-test (Statistics) ,BLOOD collection ,ACCELERATION (Mechanics) ,PREGNANCY outcomes ,DESCRIPTIVE statistics ,CHI-squared test ,TERTIARY care ,PREGNANT women ,LONGITUDINAL method ,LACTIC acidosis ,LACTATES ,MECONIUM ,GESTATIONAL age ,APGAR score ,RESEARCH ,CORD blood ,ACIDOSIS ,FETAL heart rate monitoring ,PHYSIOLOGICAL effects of acceleration ,FETAL distress ,FETAL anoxia ,FETUS - Abstract
OBJECTIVES: Electronic fetal monitoring (EFM) is used to identify early signs of fetal deterioration. However, caution is advised when interpreting cardiotocographic parameters. A promising alternative is umbilical cord blood sampling. The analysis of blood gases and lactate levels in the cord within the initial minutes of life is a recommended approach. STUDY DESIGN: This prospective cohort study, conducted over eighteen months from June 2021 to December 2022, enrolled 70 patients with non-reactive and 70 with reactive cardiotocograph (CTG) patterns. APGAR scores were recorded at 1 and 5-minute intervals. 1 ml of umbilical artery blood was assessed in an arterial blood gas machine and fetal acidosis was defined as pH <7.0 and a lactate concentration exceeding 4 mmol/L. RESULTS: In the non-reactive CTG group, 35.7% had early decelerations, 37.1% had variable decelerations, and 17.1% had late decelerations (p<0.001). The mean cord blood lactate was 5.220±1.970 mmol/L in the non-reactive CTG group and 3.400±0.228 mmol/L in the reactive CTG group. Similarly, the mean cord blood pH was 7.030±0.007 in the non-reactive CTG group and 7.170±0.076 in the reactive CTG group (p<0.001). 14.3% of cases in the non-reactive CTG group had a 5-minute APGAR <7, with a higher APGAR score in the reactive group. CONCLUSION: The study suggests that abnormal or indeterminate CTG readings are linked to a higher risk of intrapartum fetal acidosis. Non-reactive CTG results were associated with higher mean cord blood lactate and pH levels and more number of Neonatal Intensive Care Unit (NICU) admissions. There is a definite correlation between abnormal CTG patterns and poorer neonatal outcomes. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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