Enteral administration of a simulated amniotic fluid in preventing feeding intolerance in very low birthweight neonates: A randomized controlled trial.

OBJECTIVES: Feeding intolerance (FI) is a common finding in preterm neonates. Enteral administration of different forms of amniotic fluid (AF) has been tried for treating FI in high-risk neonates. Simulated amniotic fluid (SAF) is a solution with a similar electrolyte composition to human AF. The aim of this study was to examine whether enteral administration of SAF would improve feeding tolerance in very low birthweight (VLBW) neonates. METHODS: Forty VLBW neonates were randomized to either SAF or placebo (total daily dose 20 mL/kg/d-1 divided every 3 h) to their milk for a maximum of 7 d. Neonates with major congenital anomalies, those in whom early feeding was contraindicated, and those treated with parental erythropoietin and/or human granulocyte stimulating factor were excluded. The primary outcome was the total amount of enteral feeds reached by day 7. Secondary outcomes were incidence of FI and necrotizing enterocolitis (NEC). Study intervention was stopped on completing 7 d, reaching enteral feeds of 100 mL/kg/d-1, or the appearance of any sign of FI or NEC. RESULTS: All neonates tolerated the test solution well. The SAF group reached significantly larger volume and higher calories on days 3 and 7 (P < 0.05 for all). No statistical differences were seen between the two groups in incidence of FI (P = 0.311), NEC (P = 0.429), mortality (P = 0.632), length of stay (P = 0.744), or weight gain on day 10 (P = 0.389). Baseline hematologic parameters showed no statistical differences before or after enteral administration (P > 0.05). CONCLUSION: Results of the present study demonstrated that SAF solution might improve feeding tolerance in VLBW babies without evidence of its systemic absorption. Larger multicenter randomized studies are recommended.

Milrinone Versus Sildenafil in Treatment of Neonatal Persistent Pulmonary Hypertension: A Randomized Control Trial.

ABSTRACT: Persistent pulmonary hypertension of the newborn (PPHN) is a condition caused by failure of pulmonary vascular adaptation at birth, resulting in severe hypoxia. Several therapeutic modalities are being tried in developing countries where established therapies (inhaled nitric oxide and extracorporeal membrane oxygenation) are widely unavailable. This study aimed to assess the efficacy of milrinone versus sildenafil as available alternative therapeutics in treating PPHN. Forty neonates (>34 weeks) admitted to neonatal intensive care units with evidence of PPHN were randomly allocated to receive either oral sildenafil (0.5-2 mg/kg/6 hours) or intravenous milrinone (0.25-0.75 mic/kg/min). Primary outcomes included improvements in systolic pulmonary artery pressure and oxygen saturation index (OSI) at 24 and 48 hours after treatment. Secondary outcomes included the duration of hospitalization and mechanical ventilation. The ClinicalTrials identifier is NCT04391478. Both groups showed significant improvement in the post-treatment hemodynamic variables compared with pretreatment levels ( P < 0.05 for all parameters). Systolic pulmonary artery pressure and OSI values significantly improved in both study groups compared with baseline ( P < 0.001). The 24-hour and 48-hour post-treatment OSI values were much lower in the milrinone group than those in the sildenafil group ( P < 0.05). The length of hospital stay was significantly shorter in the milrinone group than that in the sildenafil group ( P < 0.05). There were no significant differences in the duration of mechanical ventilation, incidence of intracranial hemorrhage and pulmonary hemorrhage, or mortality between the 2 groups ( P > 0.05). In conclusion, milrinone and sildenafil are effective and well-tolerated in neonates with PPHN, particularly when inhaled nitric oxide and extracorporeal membrane oxygenation are not available. Milrinone is superior to sildenafil in improving oxygenation without lowering blood pressure parameters.

2021 NATIONAL DIAGNOSTIC REFERENCE LEVELS FOR PAEDIATRIC COMPUTED TOMOGRAPHY IN EGYPT.

OBJECTIVE: To establish national diagnostic reference levels (NDRLs) for most common paediatric computed tomography (CT) examinations in Egypt. METHODS: This was a prospective study that included all dedicated paediatric imaging centers in Egypt. Data from 1680 individual paediatric patients undergoing CT scanning of the head, chest and abdomen-pelvis were collected. Computed tomography dose indices were recorded, data were analysed and compared with the internationally published paediatric DRLs in14 countries. RESULTS: The Egyptian NDRLs of the CTDIvol (mGy) for head, chest and abdomen-pelvis scans among four paediatric age groups were found to be (23, 27, 28, 32, 4, 5, 6, 8, 5, 6, 7, 9) mGy, respectively; and the corresponding NDRLs of the DLP (mGycm) for head, chest and abdomen-pelvis scans were found to be (345, 428, 499, 637, 67, 85, 145, 215, 97, 135, 240, 320) mGycm, respectively. There were variations in the radiation doses between CT centers and identical scanners indicating the need for dose optimization. The NDRLs of the CTDIvol (mGy) and the DLP (mGycm) values were similar to or lower than international DRLs. CONCLUSION: This study summarizes the results of the first Egyptian Computed Tomography survey that provides national diagnostic reference levels for paediatric patients in Egypt. Despite the reasonable NDRLs values, the study depicted certain pros and cons concerning CT practice, and identified some problems that hinder the process of optimization as well as justification in children.

Measurement of Cumulative Preterm Neonatal and Maternal Stressors During Neonatal Intensive Care Unit Admission.

OBJECTIVES: By nature, the neonatal intensive care unit (NICU) environment is stressful for both infants and mothers. This study aimed to explore and quantify the severity of early life stressors in premature infants admitted to the NICU and evaluate the effect of cumulative neonatal stressors on maternal mental health. METHODS: This cross-sectional study included 100 preterm infants admitted to the NICU for at least 10 days. Daily experiences with painful/stressful procedures for 10 days were determined using the Neonatal Infant Stressor Scale. The included mothers were assessed for their psychological well-being 1 week after NICU admission using the Parental Stressor Scale: NICU and Edinburgh Postnatal Depression Scale. RESULTS: During the first 10 days of NICU admission, preterm infants experienced an average of 350.76 ± 84.43 acute procedures and an average of 44.84 ± 11.12 cumulative hours of chronic events, with the highest scores recorded on first 3 days of admission. Although intravenous flushing for patency was the most frequent acute procedure, blood gas sampling was the most painful. Forty-five percent of the mothers showed significant depressive symptoms, with the maternal role alteration reported as the most stressful experience, especially for young and new mothers (p < .001). The cumulative stressors experienced by infants were significantly associated with elevated maternal perception of psychological maladjustment (p < .001). CONCLUSION: This study confirmed that the NICU environment is stressful for both infants and mothers, with the total cumulative stressors experienced by preemies in the NICU having an negative impact on maternal mental health.

Postextubation Noninvasive Ventilation in Respiratory Distress Syndrome: A Randomized Controlled Trial.

OBJECTIVE: Successful extubation and prevention of reintubation remain primary goals in neonatal ventilation. Our aim was to compare three modalities of postextubation respiratory support-noninvasive positive pressure ventilation (NIPPV), nasal bilevel positive airway pressure (N-BiPAP), and nasal continuous positive airway pressure (NCPAP)-using the RAM cannula in preterm neonates with respiratory distress syndrome (RDS). Our secondary aim was to define the predictors of successful extubation. STUDY DESIGN: A total of 120 preterm neonates (gestational age ≤35 weeks) with RDS who had undergone primary invasive ventilation were randomized to receive either NIPPV, N-BiPAP, or NCPAP. The incidence of respiratory failure in the first 48 hours postextubation, total days of invasive and noninvasive ventilation, duration of hospitalization, and mortality were measured and compared among the three different noninvasive support modalities. RESULTS: There were no significant differences in the postextubation respiratory failure rates and the number of days of invasive as well as noninvasive ventilation among the three different support modalities (p > 0.05). The total number of days of mechanical ventilation and the duration of hospitalization were significantly higher in the N-BiPAP group than those in the NCPAP or NIPPV groups (p < 0.05). A gestational age of at least 29 weeks and a birth weight of at least 1.4 kg were predictive of successful extubation with a sensitivity of 98.2 and 85.3% and a specificity of 63.6 and 90.9%, respectively. CONCLUSION: Longer durations of mechanical ventilation and hospitalization were observed with N-BiPAP as a noninvasive mode of ventilation, but there was no significant difference in the extubation failure rates among the three modalities. Gestational age and birth weight were shown to be independent predictors of successful extubation of preterm neonates with RDS. KEY POINTS: · Successful extubation and reintubation prevention of preterms are primary goals in neonatal ventilation.. · NIPPV, N-BiPAP, and NCPAP could be used as postextubation noninvasive modes in preterm neonates.. · Gestational age and birth weight are independent predictors of successful extubation of preterms..

Perioperative nutritional prehabilitation in malnourished children with congenital heart disease: A randomized controlled trial.

OBJECTIVE: The poor preoperative nutritional state of children with congenital heart disease (CHD) is often exacerbated postoperatively. The aim of this study was to evaluate the effect of perioperative 1- versus 2-wk nutritional prehabilitation programs on growth and surgical outcomes in malnourished children with CHD. METHODS: Forty malnourished infants scheduled for elective CHD surgery were randomized to receive either 1 or 2 wk of a nutritional prehabilitation program. Pre- and postoperative anthropometric parameters and feeding characteristics, feeding tolerance, duration of mechanical ventilation, intensive care unit (ICU) length of stay (LOS) and total hospital LOS were documented. RESULTS: The 2-wk prehabilitation group showed higher weight-for-age z-score and body mass index than the 1-wk group both preoperatively postnutritional, and postoperatively with significantly higher weight gain postoperatively. The 2-wk prehabilitation group had a shorter duration of postoperative mechanical ventilation, ICU LOS, and total hospital LOS. CONCLUSION: The 2-wk prehabilitation program was associated with better anthropometric measurements, shorter ICU LOS postoperatively, and shorter duration of hospitalization and mechanical ventilation. The preoperative nutritional status of children with CHD had a negative effect on ICU LOS and duration of mechanical ventilation.

Longer duration of kangaroo care improves neurobehavioral performance and feeding in preterm infants: a randomized controlled trial.

AIM: To investigate the effect of kangaroo care (KC) and its duration on neurobehavioral performance, stress response, breastfeeding success, and vital signs in premature infants. METHODS: One hundred and twenty premature infants were randomized to receive either KC for 60 min daily, KC for 120 min daily or conventional care (controls) for at least 7 days. Salivary cortisol was measured before and after the first KC session and then after 7 days. Temperature, respiration rate, heart rate, and oxygen saturation were recorded, before and after KC. Neonates were evaluated by the Neonatal Intensive Care Unit Network Neurobehavioral Scale (NNNS). RESULTS: Both KC groups demonstrated higher scores for attention, arousal, regulation, nonoptimal reflexes, and quality of movements and lower scores for handling, excitability, and lethargy, compared to controls (p < 0.05). Both KC groups had higher infant breastfeeding assessment tool score and reached full enteral feeds faster than controls (p < 0.05). After the first KC session, improvement in O2 saturation and temperature was observed in KC 120-min group compared with the KC 60-min group (p < 0.05). Salivary cortisol decreased in both KC groups compared with controls after 7 days (p < 0.05). CONCLUSION: Preterm neonates who receive KC for long durations reach full enteral feeds faster, have better breastfeeding success, neurobehavioral performance, thermal control, and tissue oxygenation.

Oxidative stress markers in neonatal respiratory distress syndrome: advanced oxidation protein products and 8-hydroxy-2-deoxyguanosine in relation to disease severity.

OBJECTIVE: We assessed oxidant-antioxidant status and evaluated the role of lipid peroxidation, oxidative DNA damage, and protein oxidation in the development and severity of neonatal respiratory distress syndrome (RDS). METHODS: Forty preterm neonates with RDS were compared with another 40 preterm neonates without RDS enrolled as controls. Total antioxidant capacity (TAC), malondialdehyde (MDA), advanced oxidation protein products (AOPPs), 8-hydroxy-2-deoxyguanosine (8-OHdG), and trace elements (copper and zinc) were measured in cord blood (day 0) for all neonates and repeated on day 3 for the RDS group. RESULTS: Day 0 serum levels of MDA, AOPPs, and 8-OHdG were significantly higher in neonates with RDS than controls with a further increase on day 3. Days 0 and 3 levels of TAC, copper, and zinc were significantly lower in the RDS group compared with controls. Elevated serum levels of 8-OHdG and AOPPs were associated with severe RDS, invasive mechanical ventilation, and high mortality rate. 8-OHdG and AOPPs were positively correlated with MDA, oxygenation index, duration of ventilation, and duration of hospitalization. CONCLUSIONS: Increased lipid, protein, and DNA oxidation is accompanied by alterations in the antioxidant defense status, which may play a role in the pathogenesis and severity of RDS.

Passive Range-of-Motion Exercise and Bone Mineralization in Preterm Infants: A Randomized Controlled Trial.

OBJECTIVE: To assess the effect of range-of-motion exercise program on bone mineralization and somatic growth of very low birth weight (VLBW) infants. STUDY DESIGN: A total of 36 VLBW infants were randomized into 18 VLBW infants receiving range-of-motion exercise and 18 VLBW control infants receiving tactile stimulation for 4 weeks. Laboratory investigations were performed at baseline and postexercise and included serum calcium, serum phosphorus (s.PO4), magnesium, alkaline phosphatase (ALP), urinary calcium/phosphate ratio, and serum carboxy-terminal cross-linked telopeptide of type 1 collagen (CTX). Dual-energy X-ray absorptiometry was performed at the end of the exercise protocol to measure bone mineral content, bone mineral density (BMD), bone area, lean mass, and fat mass. RESULTS: The weight and the rate of weight gain were significantly higher (p < 0.001) in the exercise group compared with controls postexercise. Also, higher s.PO4, lower ALP, and lower urinary calcium/phosphate ratio were observed postexercise in the exercise group (p = 0.001, p = 0.005, and p = 0.04, respectively), whereas serum CTX showed no difference between the two groups (p = 0.254). Postexercise BMD significantly improved in the exercise group (p < 0.001) compared with controls. CONCLUSION: Although the sample size was small, we may be able to suggest favorable effects of range-of-motion exercise versus tactile stimulation on bone metabolism, BMD, and short-term growth in VLBW infants.

Efficacy and safety of oral paracetamol versus oral ibuprofen for closure of patent ductus arteriosus in preterm infants: a randomized controlled trial.

Objective: The objective of this study is to evaluate the efficacy and safety of oral paracetamol versus oral ibuprofen in the treatment of hemodynamically significant patent ductus arteriosus (hsPDA) in preterm infants. Study design: An interventional randomized case-control study, registered in ClinicalTrials.gov (NCT03265782), was conducted on 60 preterm infants with gestational age ≤34 weeks, postnatal age of 2-7 d and color Doppler echocardiographic evidence of hsPDA. Neonates were randomly assigned to two groups: 30 received oral ibuprofen and 30 received oral paracetamol. With failure of ductal closure, a second course of ibuprofen or paracetamol was given. The included newborns were subjected to detailed history, clinical examination, laboratory investigations that included complete blood count, renal, and liver function tests and echocardiographic evaluation. Results: Oral paracetamol was as effective as ibuprofen for the closure of patent ductus arteriosus (PDA) with one course of treatment (p > .05). Moreover, oral paracetamol was superior to ibuprofen among neonates who needed second course of treatment with significant decrease in end diastolic flow velocity in the left pulmonary artery (0.35 ± 0.09 versus 0.19 ± 0.06, p = .014), right ventricular systolic pressure (40.50 ± 12.91 versus 20.50 ± 0.58, p = .016) and left atrium to aortic root ratio (1.23 ± 0.14 versus 1.07 ± 0.04, p = .046) when compared to ibuprofen group. Furthermore, the mean difference between pre- and post-treatment PDA size was significantly higher in the paracetamol group compared with ibuprofen group after the second course of treatment (1.07 ± 0.32 versus 0.73 ± 0.38, p = .024). Oral paracetamol was comparable with ibuprofen in terms of the rate of non-surgical ductal closure [28 (93.3%) versus 24 (80%), p = .591]. In addition, oral paracetamol was as safe as oral ibuprofen in terms of gastrointestinal perforation or bleeding, necrotizing enterocolitis, bronchopulmonary dysplasia, intraventricular hemorrhage, thrombocytopenia, hepatic or renal dysfunction. Conclusions: Oral paracetamol is an effective and well-tolerated first-line drug treatment for PDA in premature infants.

Effect of phototherapy on oxidant/antioxidant status: a randomized controlled trial.

In order to evaluate the effect of different types of phototherapy on oxidant/antioxidant status in hyperbilirubinemic neonates, an interventional randomized control trial was conducted on 120 neonates ≥35 weeks' gestational age with indirect hyperbilirubinemia reaching phototherapy level. This study is registered with ClinicalTrials.gov as NCT03074292. Neonates were assigned to three groups; 40 neonates received conventional phototherapy, 40 received intensive phototherapy and 40 received blue light-emitting diodes (LED) phototherapy. Complete blood count (CBC), total serum bilirubin (TSB), total antioxidant capacity (TAC), malondialdehyde (MDA), nitric oxide (NO), copper (Cu), zinc (Zn), and iron (Fe) levels were measured before and 24 hours after phototherapy. TSB decreased postphototherapy in all three groups (p < .05 for all), with significantly lower levels following intensive and LED phototherapy compared to conventional phototherapy (p < .05 for both). TAC decreased postphototherapy in the three groups (p < .05 for all). MDA and NO increased postphototherapy (p < .05 for all), with the intensive phototherapy group having the highest levels followed by the conventional while LED phototherapy group showed the lowest levels in comparison to the other groups (p < .05). Cu, Zn and Fe increased postphototherapy in all three groups (p < .05 for all). Positive correlations were found between postphototherapy TSB with TAC, Cu and Zn (p < .05) and negative correlations with MDA, NO and Fe (p < .05) among neonates of the 3 studied groups. In conclusion, different photo therapies have an impact on oxidant/antioxidant balance and are associated with increased oxidative stress markers with the LED phototherapy being the safest.

Cerebral blood flow and serum neuron-specific enolase in early-onset neonatal sepsis.

BACKGROUND AND OBJECTIVES: Sepsis leads to systemic inflammatory response with cerebral blood flow (CBF) alteration and blood-brain barrier disruption that contribute to sepsis-associated encephalopathy (SAE). We aimed to evaluate cord blood neuron-specific enolase (cNSE) and CBF in early-onset neonatal sepsis (EONS) as predictors of SAE and to define short-term neurodevelopmental outcomes among survivors. METHODS: cNSE was measured in 200 neonates with antenatal risk factors for EONS, stratified into two groups: sepsis (n = 96) and no-sepsis (n = 104). Trans-cranial Doppler of peak systolic velocities (PSV), end diastolic velocities (EDV) and resistive indices (RI) of anterior (ACA) and middle (MCA) cerebral arteries recorded on day 1 postnatal. Griffiths mental developmental scale (GMDS) was assessed at 6 months. RESULTS: Increased cNSE, PSV, EDV, and decreased RI of both ACA and MCA were found in sepsis group compared to no-sepsis group (p < 0.001 for all). Patients with SAE (n = 34) had higher NSE, PSV, and EDV as well as lower RI of ACA and MCA compared to those without (p < 0.01 for all). SAE neonates had lower GMDS than those without. ACA RI of ≤0.61 was the best predictor of SAE. CONCLUSION: High CBF and cNSE could be useful markers for prediction of SAE. SAE impairs neurodevelopmental scales at 6 months.

Circulating Levels of Vascular Endothelial Growth Factor and Basic Fibroblastic Growth Factor in Infantile Hemangioma Versus Vascular Malformations.

Few preliminary reports studied the utility of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) for differentiation between infantile hemangiomas (IHs) and vascular malformations. The aim of this study was to investigate the role of serum VEGF and bFGF levels in differentiating IHs from vascular malformations and identifying the stage and clinical course of IHs. Serum levels of VEGF and bFGF were assessed in 60 infants and children with various cutaneous vascular anomalies defined in 3 groups: proliferating IHs (n = 25), involuting IHs (n = 23), and vascular malformations (n = 12), in comparison with their levels in 40 healthy matched control. Serum levels of VEGF and bFGF were significantly elevated in all groups as compared to control ( P < .001, respectively). Both proliferating and involuting IHs had comparable levels of both markers ( P > .05, respectively) that were significantly higher in comparison with vascular malformations ( P < .05, respectively). Significantly lower VEGF levels were found in IHs that had regressed spontaneously (n = 11) compared to those regressed by treatment (n = 37), ( P < .05); meanwhile, bFGF showed no significant difference between both groups ( P > .05). Using receiver operating characteristic curves, a combined use of VGEF and bFGF yielded a sensitivity of 85.42% and a specificity of 100% for differentiating IHs from vascular malformations. Serum VEGF and/or bFGF levels are increased in cutaneous vascular anomalies and can differentiate IHs from vascular malformations. None of these markers could help in identifying the stage of IHs. Low VEGF is associated with spontaneous regression of IHs.

Renal functional and structural integrity in infants with iron deficiency anemia: relation to oxidative stress and response to iron therapy.

BACKGROUND: Iron deficiency anemia (IDA) is the most common nutritional deficiency in the world. The aim of our study was to evaluate and compare renal functional and structural integrity in 50 infants with IDA and 50 healthy controls and to assess the relation between IDA and oxidative stress and response to iron therapy. METHODS: This was a prospective study in which peripheral blood samples were collected from all study subjects and the following laboratory investigations performed: serum iron profile, urinary microalbumin, urinary leucine aminopeptidase (LAP), fractional excretion of sodium (FeNa), serum total antioxidant capacity (TAC), serum malondialdehyde (MDA), serum and urinary trace elements (iron, copper, zinc, calcium and magnesium). All patients received oral iron therapy and were followed-up for 3 months. RESULTS: The levels of baseline urinary markers were higher among the patients with IDA than among the controls (p < 0.05). Patients had a lower pre-therapy TAC and lower serum zinc and magnesium levels than controls as well as higher MDA and serum copper levels (p < 0.05). MDA level was positively correlated to microalbumin and LAP level (p < 0.05). Urinary LAP concentration was positively correlated to urinary trace element concentrations (p < 0.05). A significant decrease in microalbumin, LAP, FeNa, and urinary trace elements was observed post-iron therapy while hemoglobin and ferritin levels were increased (p < 0.05). CONCLUSION: Among the study subjects, IDA had an adverse influence on renal functional and structural integrity which could be reversed with iron therapy. Oxidative stress played an important role in the pathogenesis of renal injury in IDA.

Enteral granulocyte-colony stimulating factor and erythropoietin early in life improves feeding tolerance in preterm infants: a randomized controlled trial.

OBJECTIVE: To evaluate the efficacy and safety of enteral recombinant human granulocyte colony-stimulating factor (rhG-CSF) and recombinant human erythropoietin (rhEPO) in preventing feeding intolerance. STUDY DESIGN: An interventional randomized control trial was conducted in 90 preterm infants born at ≤33 weeks gestational age. The neonates were assigned to 4 groups; 20 received rhG-CSF, 20 received rhEPO, 20 received both, and 30 received distilled water (placebo control). The test solution was given at the beginning of enteral feeding and was discontinued when enteral intake reached 100 mL/kg/day or after a maximum of 7 days, whichever came first. Feeding tolerance and adverse effects of treatment were assessed. Serum granulocyte colony-stimulating factor and erythropoietin levels were measured on days 0 and 7 of treatment. RESULTS: All neonates tolerated the treatment without side effects. Neonates who received rhG-CSF and/or rhEPO had better feeding tolerance, as reflected by earlier achievement of 75 mL/kg/day, 100 mL/kg/day, and full enteral feeding of 150 mL/kg/day with earlier weight gain and a shorter hospital stay (P < .05). The risk of necrotizing enterocolitis was reduced from 10% to 0% in all treatment groups (P < .05). There was a shorter duration of withholding of feeding secondary to feeding intolerance among neonates receiving both rhG-CSF and rhEPO compared with those receiving placebo (P < .05). Serum levels of granulocyte colony-stimulating factor and erythropoietin at 0 and 7 days did not differ across the treatment groups. CONCLUSIONS: Enteral administration of rhG-CSF and/or rhEPO improves feeding outcome and decreases the risk of necrotizing enterocolitis in preterm neonates. The mechanism may involve the prevention of villous atrophy.

CD144+ endothelial microparticles as a marker of endothelial injury in neonatal ABO blood group incompatibility.

BACKGROUND: ABO antigens are expressed on the surfaces of red blood cells and the vascular endothelium. We studied circulating endothelial microparticles (EMP) in ABO haemolytic disease of the newborn (ABO HDN) as a marker of endothelial activation to test a hypothesis of possible endothelial injury in neonates with ABO HDN, and its relation with the occurrence and severity of haemolysis. MATERIAL AND METHODS: Forty-five neonates with ABO HDN were compared with 20 neonates with Rhesus incompatibility (Rh HDN; haemolytic controls) and 20 healthy neonates with matched mother and infant blood groups (healthy controls). Laboratory investigations were done for markers of haemolysis and von Willebrand factor antigen (vWF Ag). EMP (CD144(+)) levels were measured before and after therapy (exchange transfusion and/or phototherapy). RESULTS: vWF Ag and pre-therapy EMP levels were higher in infants with ABO HDN or Rh HDN than in healthy controls, and were significantly higher in babies with ABO HDN than in those with Rh HDN (p<0.05). In ABO HDN, pre-therapy EMP levels were higher in patients with severe hyperbilirubinaemia than in those with mild and moderate disease or those with Rh HDN (p<0.001). Post-therapy EMP levels were lower than pre-therapy levels in both the ABO HDN and Rh HDN groups; however, the decline in EMP levels was particularly evident after exchange transfusion in ABO neonates with severe hyperbilirubinaemia (p<0.001). Multiple regression analysis revealed that the concentrations of haemoglobin, lactate dehydrogenase and indirect bilirubin were independently correlated with pre-therapy EMP levels in ABO HDN. DISCUSSION: Elevated EMP levels in ABO HDN may reflect an IgG-mediated endothelial injury parallel to the IgG-mediated erythrocyte destruction and could serve as a surrogate marker of vascular dysfunction and disease severity in neonates with this condition.

Antenatal administration of vitamin K1: relationship to vitamin K-dependent coagulation factors and incidence rate of periventricular-intraventricular hemorrhage in preterm infants; Egyptian randomized controlled trial.

OBJECTIVES: To determine the effect of maternal antenatal administration of vitamin K1 on activity level of vitamin K-dependent coagulation factors and on the occurrence of periventricular-intraventricular hemorrhage (PIVH). METHODS: This study was conducted on 90 infants who were classified into; Group A: 30 preterm whose mothers received antenatal vitamin K1, Group B: 30 preterm whose mothers did not receive antenatal vitamin K1, and Group C: 30 healthy full term newborns as a control group. All newborns were subjected to measurement of the activity level of vitamin K-dependent coagulation factors (FII, FVII, FIX and FX). Cranial ultrasound was done on the 1st, 3rd and 7th days of life. RESULTS: Group B showed significantly lower activity level of FII and FX with higher incidence of PIVH compared with group A. Neonates who developed PIVH by the 7th day in both group A and B had significantly lower activity level of vitamin K-dependent coagulation factors. CONCLUSION: when antenatal vitamin K1 was given to pregnant women at imminent risk of preterm labor, their preterm neonates were able to achieve a clotting status approaching that of full term neonates and are less liable to develop PIVH.

Targeted versus Universal Neonatal Hearing Screening in a Single Egyptian Center.

Aim. To compare targeted neonatal hearing screening (TNHS) and universal neonatal hearing screening (UNHS) since many developing countries, including Egypt, implement selective screening for high-risk neonates. Methods. 150 neonates were assessed; 50 full terms consecutively admitted to the well-baby nursery and 100 neonates consecutively admitted to neonatal intensive care unit (NICU), Ain Shams University. Patients were further subdivided into high-risk group which included 50 neonates with multiple risk factors for hearing loss and low risk group which included 50 neonates with only one risk factor. Transient evoked otoacoustic emissions (TEOAEs) were used for hearing screening. Auditory brain response (ABR) was performed 3 months later for failed TEOAEs. Results. The most frequent risk factor was consanguinity (46%). In the well-baby population, 16% failed TEOAEs. In the NICU, 30% of the low risk and 38% of the high risk groups failed TEOAEs. Regarding ABR, failed results were 12%, 10%, and 8% in the high-risk, low-risk, and healthy groups, respectively. Conclusion. The use of TNHS would have missed 8% of neonates from the well-baby group who actually had PCHL (permanent congenital hearing loss). The use of UNHS would identify all cases with PCHL, allowing for early intervention and follow-up.