Predictors of mortality and major morbidities in extremely low birth weight neonates |
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Authors: | Kanya Mukhopadhyay Deepak Louis Rama Mahajan Praveen Kumar |
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Affiliation: | 1. Neonatal Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India 2. Department of Pediatrics, PGIMER, Chandigarh, India
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Abstract: | Objectives To determine predictors of mortality and morbidity in extremely low birth weight neonates (ELBW) from a developing country Study design Prospective observational study. Setting Level III neonatal unit in Northern India. Subjects Neonates <1000g born and admitted to intensive care during study period were enrolled. They were analyzed based on survival and development of major morbidity. Multivariable logistic regression model was used to determine independent risk factors. Outcome Mortality and major morbidity (one or more of the following: Bronchopulmonary dysplasia (BPD), Retinopathy of Prematurity (ROP) requiring laser, grade III or IV intraventricular hemorrhage (IVH), periventricular leukomalacia (PVL) and necrotizing enterocolitis (NEC) stage III) during hospital stay. Results Of 255 ELBW neonates born, 149 received optimal care, of which 78 (52%) survived and 57 (39%) developed morbidities. Mean birth weight and gestational age were 29.1±2.6 weeks and 843±108g. Major causes of mortality were sepsis (46%), birth asphyxia (20%) and pulmonary hemorrhage (19%). Birth weight ≤800g [OR (95% CI)-3.51 (1.39–8.89), P=0.008], mechanical ventilation [4.10 (1.64–10.28), P=0.003] and hypotensive shock [10.75 (4.00–28.89), P<0.001] predicted mortality while birth weight ≤800g [3.75 (1.47–9.50), P=0.006], lack of antenatal steroids [2.62 (1.00–6.69), P=0.048), asphyxia [4.11 (1.45–11.69), P=0.008], ventilation [4.38 (1.29–14.79), P=0.017] and duration of oxygen therapy [0.004 (1.001–1.006), P=0.002] were the predictors of major morbidities. Conclusions Low birth weight, mechanical ventilation and hypotensive shock predicted mortality in ELBW neonates while low birth weight, lack of antenatal steroids, birth asphyxia, ventilation and duration of oxygen therapy were predictors for major morbidity. |
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