Incidence Of Neonatal Respiratory Distress Research Articles

Evaluation of quality of recovery score in mothers and neonatal outcome assessment after surgery using preoperative dexamethasone for caesarean section

BackgroundQuality of recovery (QoR) after surgery is an essential measure of early postoperative health status of the patient. The incidence of caesarean section (CS) has increased in the last few decades. Numerous studies have been conducted for reduction of pain after CS but only a few on the effect of preoperative dexamethasone on QoR after CS. This study is designed to evaluate QoR with dexamethasone and neonate outcome assessment after CS. MethodsThis is a prospective, randomised study in which patients undergo CS under spinal anaesthesia (SA). Patients received either 8 mg (2 ml) of dexamethasone IV (group D, n = 30) or 2 ml of 0.9% normal saline (group C; n = 30) before SA. The QoR-40 and Apgar score, neonatal respiratory distress, haemodynamic response and ill effects were recorded. ResultsThe baseline haemodynamic (heart rate, mean arterial pressure (MRP), Respiratory rate (RR) and pulse oximetry) parameters were comparable in both the groups. The mean global score and each score in group D was better than that of group C (p < 0.001). The mean duration of block in group D (169.83 ± 9.05 min) was more than that in group C (163.33 ± 11.91 min) (p < 0.021). The incidence of neonatal respiratory distress, neonatal intensive care unit admission and Apgar score at 1 min and at 5 min of birth was comparable between the groups. ConclusionDexamethasone has a positive effect on early postoperative recovery of patients undergoing CS with a delay in regression of spinal block and without any significant adverse effects on neonatal outcomes.

Antenatal corticosteroids and incidence of neonatal respiratory distress after elective caesarean section in late preterm and term neonates

IntroductionBirth by elective caesarean section in late preterm and early term newborn increases the risk of respiratory distress. Administration of antenatal corticosteroids in these cases could reduce the respiratory distress and its severity. ObjectivesTo determine the influence of antenatal corticosteroids use in elective caesarean sections in the respiratory distress of the newborn from 35+0 to 38+6 weeks of gestational age. Patients and methodsRetrospective analytical study of caesarean sections from 35+0 to 38+6 gestational age was conducted in a tertiary hospital from January 2013 to April 2017. Data were collected from medical records of pregnant women and newborns after an implementation of new protocol of betamethasone administration to these elective caesarean sections. Analysis was performed on 2 newborn subgroups: preterm newborn (PTN) 35–36 gestational age and term (TN) 37–38 weeks. ResultsA total of 208 elective caesarean sections were performed in the study period. Corticosteroids were administered in 97 (46.6%) of cases. The percentage of respiratory distress was higher in the group of preterm newborn compared to term newborn (29% vs. 8.8%, P<.001) and in term newborn higher at a lower gestational age. Between treated with corticosteroids or not, no significant differences were found in the treated and non-treated in the development of respiratory distress (PTN 30 vs. 30%, TN 9.1 vs. 6.9%, P=.6). ConclusionsNo statistically significant differences were found in this study in favour of the administration of an antenatal dose of betamethasone in the reduction of respiratory distress in the elective caesarean sections from 35+0 to 38+6 gestational age. The delay in the indication of elective caesarean sections, whenever possible, could help reduce the incidence of newborn respiratory distress.

Neonatal Respiratory Distress in Misan: Causes, Risk Factors, and Outcomes

Background: Respiratory distress is considered one of the most frequent causes of admission in the neonatal unit. Additionally, it is the leading cause of neonatal morbidity and mortality. This study aimed to determine the incidence of neonatal respiratory distress and its causes, risk factors, and outcomes to have a baseline data about the magnitude of respiratory distress with a further step toward the development of the neonatal field.Methods: This cross-sectional study was conducted in the neonatal care unit of Misan Hospital for Child and Maternity in Misan, Iraq, during one year. All the neonates who developed respiratory distress were included in this study according to the World Health Organization criteria.Results: The total number of neonatal admission during the study period was 870 cases among whom 738 (84.8%) subjects developed respiratory distress. The fatality rate was 21%, and the majority of deaths were found in respiratory distress syndrome (RDS) (67.1%). The RDS, transient tachypnea, and birth asphyxia were the major causes of neonatal respiratory distress. Statistically, prematurity, type of delivery, and number of babies at the delivery time were significantly associated with respiratory distress development.Conclusion: The incidence rate of neonatal respiratory distress was apparently high in Misan forming the most common cause of neonatal admission associated with a high mortality rate. Efforts toward preventing the causes and risk factors for neonatal respiratory distress, as well as, improving the efficacy of neonatal care unit are the significant challenges to improve the neonatal care and outcome.

EP21.01: Incidence of neonatal respiratory distress after 36 weeks of gestation among uncomplicated twin pregnancies according to gestational week of birth

EP21.01: Incidence of neonatal respiratory distress after 36 weeks of gestation among uncomplicated twin pregnancies according to gestational week of birth

Mice with a Deletion of Rsph1 Exhibit a Low Level of Mucociliary Clearance and Develop a Primary Ciliary Dyskinesia Phenotype.

Primary ciliary dyskinesia (PCD) is a genetically and phenotypically heterogeneous disease caused by mutations in over 40 different genes. Individuals with PCD caused by mutations in RSPH1 (radial spoke head 1 homolog) have been reported to have a milder phenotype than other individuals with PCD, as evidenced by a lower incidence of neonatal respiratory distress, higher nasal nitric oxide concentrations, and better lung function. To better understand genotype-phenotype relationships in PCD, we have characterized a mutant mouse model with a deletion of Rsph1. Approximately 50% of cilia from Rsph1-/- cells appeared normal by transmission EM, whereas the remaining cilia revealed a range of defects, primarily transpositions or a missing central pair. Ciliary beat frequency in Rsph1-/- cells was significantly lower than in control cells (20.2 ± 0.8 vs. 25.0 ± 0.9 Hz), and the cilia exhibited an aberrant rotational waveform. Young Rsph1-/- animals demonstrated a low rate of mucociliary clearance in the nasopharynx that was reduced to zero by about 1 month of age. Rsph1-/- animals accumulated mucus in the nasal cavity but had a lower bacterial burden than animals with a deletion of dynein axonemal intermediate chain 1 (Dnaic1-/-). Thus, Rsph1-/- mice display a PCD phenotype similar to but less severe than that observed in Dnaic1-/- mice, similar to what has been observed in humans. The results suggest that some individuals with PCD may not have a complete loss of mucociliary clearance and further suggest that early diagnosis and intervention may be important to maintain this low amount of clearance.

Analysis of Neonatal Respiratory Distress in Neonatal Intensive Care Unit at Nepal Medical College

Respiratory distress is one of the most common reasons for admission in Neonatal Intensive Care Unit. However, studies of newborn admitted with respiratory distress in our setup are limited. This study aims to look for incidence of neonatal respiratory distress in our setup, to analyze the common causes of respiratory distress and to determine possible strategic plan needed for better clinical outcome. A cross sectional study was conducted from March 2013 to December 2014 in Nepal Medical College and Teaching Hospital. Data of all the neonates with respiratory distress admitted during this period were analyzed. Total 317 (13.4%) neonates were admitted to Neonatal Intensive Care Unit during the study period.109 neonates developed respiratory distress comprising 34.3% of all Neonatal Intensive Care Unit admissions. Incidence of neonatal respiratory distress was 4.6%. The common causes of respiratory distress in our study were meconium aspiration syndrome in 21.1%, septicemia in 16.5%, transient tachypnea of newborn in 15.5%, pneumonia in 14.6%, birth asphyxia and hyaline membrane disease were in each 11.9% of the neonates. Caesarean section was the most common predisposing factor associated with the development of transient tachypnea of newborn in 82.3% newborns (p=.001). The overall mortality rate due to respiratory distress was 12.8%. Meconium aspiration syndrome, septicemia and hyaline membrane disease are the most important causes of respiratory distress in our setup. Good obstetric care, proper training of health care personnel in neonatal resuscitation and early recognition of potential risk factors of respiratory distress will be helpful.

Increased incidence of neonatal respiratory distress in infants with mucopolysaccharidosis type II (MPS II, Hunter syndrome)

Records were reviewed on all patients with mucopolysaccharidosis type II (Hunter syndrome) seen at a single institution from 1999 to 2013 to identify those with a history of neonatal intensive care. Eleven of 34 patients were in a neonatal intensive care unit and all had respiratory distress with 8 diagnoses of respiratory distress syndrome and 3 of transient tachypnea of the newborn. None of the infants were premature; four were delivered by cesarean section. These findings suggest that respiratory distress is more commonly observed in neonates with MPS II than in the general population. This may reflect airway disease already present in this disorder at the time of birth.

Elective Cesarean Delivery, Neonatal Intensive Care Unit Admission, and Neonatal Respiratory Distress

Objective To evaluate the relationship among gestational age at elective cesarean delivery, neonatal intensive care unit (NICU) admission, and whether the presence of pre-cesarean delivery labor or ruptured membranes affected the incidence of neonatal respiratory distress. Methods A chart review was performed of all elective caesarean deliveries (documented planned in advance) during 1 year, 2004-2005, in the Calgary Health Region; resulting in liveborn infants at or after 36 weeks of gestation and birth weight equal to or greater than 2,500 g. The primary outcomes are relative risk of NICU admission or respiratory distress. Results A total of 1,193 paired maternal and infant charts were reviewed. Admission rate to the NICU was 156 of 1,195 (13.1%). The most common admitting diagnosis was respiratory distress, 126 of 156 (80%). Male gender was a significant risk factor for admission to the NICU or respiratory distress (odds ratio [OR] 1.82, 95% confidence interval [CI] 1.27-2.60, and OR 1.98, 95% CI 1.33-2.95, respectively). Elective cesarean delivery beyond 270 days of gestational age (38(4/7) weeks) significantly reduced the risk for NICU admission or respiratory distress (OR 0.62, 95% CI 0.43-0.89, and OR 0.50, 95% CI 0.34-0.74, respectively). The presence of spontaneous contractions or rupture of membranes before elective cesarean delivery did not reduce the risk of NICU admission or respiratory distress (OR 1.05, 95% CI 0.69-1.62, and OR 0.96, 95% CI 0.60-1.55, respectively). Conclusion Admission to NICU and development of respiratory distress were associated with gestational age at time of elective cesarean delivery and male gender. Awaiting the onset of labor or ruptured membranes did not appear to reduce the risk of NICU admission or neonatal respiratory distress.

Elective Cesarean Delivery, Neonatal Intensive Care Unit Admission, and Neonatal Respiratory Distress

To evaluate the relationship among gestational age at elective cesarean delivery, neonatal intensive care unit (NICU) admission, and whether the presence of pre-cesarean delivery labor or ruptured membranes affected the incidence of neonatal respiratory distress. A chart review was performed of all elective caesarean deliveries (documented planned in advance) during 1 year, 2004-2005, in the Calgary Health Region; resulting in liveborn infants at or after 36 weeks of gestation and birth weight equal to or greater than 2,500 g. The primary outcomes are relative risk of NICU admission or respiratory distress. A total of 1,193 paired maternal and infant charts were reviewed. Admission rate to the NICU was 156 of 1,195 (13.1%). The most common admitting diagnosis was respiratory distress, 126 of 156 (80%). Male gender was a significant risk factor for admission to the NICU or respiratory distress (odds ratio [OR] 1.82, 95% confidence interval [CI] 1.27-2.60, and OR 1.98, 95% CI 1.33-2.95, respectively). Elective cesarean delivery beyond 270 days of gestational age (38(4/7) weeks) significantly reduced the risk for NICU admission or respiratory distress (OR 0.62, 95% CI 0.43-0.89, and OR 0.50, 95% CI 0.34-0.74, respectively). The presence of spontaneous contractions or rupture of membranes before elective cesarean delivery did not reduce the risk of NICU admission or respiratory distress (OR 1.05, 95% CI 0.69-1.62, and OR 0.96, 95% CI 0.60-1.55, respectively). Admission to NICU and development of respiratory distress were associated with gestational age at time of elective cesarean delivery and male gender. Awaiting the onset of labor or ruptured membranes did not appear to reduce the risk of NICU admission or neonatal respiratory distress.

Antenatal Betamethasone and Incidence of Neonatal Respiratory Distress After Elective Caesarean Section: Pragmatic Randomized Trial

Corticosteroids given antenatally have reduced the incidence of respiratory distress in preterm infants. The randomized ASTECS trial was done to learn whether steroids have this effect when given to term infants delivered electively by cesarean section. A total of 998 women at 10 maternity units were randomized to receive either 2 intramuscular 12-mg doses of betamethasone within 48 hours before delivery or no steroid treatment. The treatment and control groups were similar in maternal age, asthma, and smoking history, as well as infant gender and birth weight. Of 35 newborn infants admitted to special units because of respiratory distress, 24 had not received steroid (P = 0.02). The relative risk of an infant in the treatment group being admitted to a special unit with respiratory distress was 0.46 (95% confidence interval [CI], 0.23-0.93). The risk ratio for transient tachypnea of the newborn was 0.54 (95% CI, 0.26-1.12). The risk ratio for respiratory distress syndrome in treatment cases was 0.21 (95% CI, 0.03-1.32). Respiratory distress was equally severe for treatment and control infants admitted to special care units. Logistic regression analysis showed that the predicted likelihood of admission to special care with respiratory distress at 37 weeks gestation was 5.2% in the treatment group and 11.4% in the control group. The respective figures at 38 weeks were 2.8% and 6.2%, and at 39 weeks, 0.6% and 1.5%. Adverse effects, most often generalized flushing, were noted in 7 mothers given steroid treatment. Antenatal treatment with betamethasone reduces the need for admitting newborn infants to special care units with respiratory distress after term cesarean delivery. Delaying delivery to 39 weeks gestation also is helpful.

Antenatal Betamethasone and Incidence of Neonatal Respiratory Distress After Elective Caesarean Section: Pragmatic Randomised Trial

Antenatal Betamethasone and Incidence of Neonatal Respiratory Distress After Elective Caesarean Section: Pragmatic Randomised Trial

Antenatal Betamethasone and Incidence of Neonatal Respiratory Distress After Elective Caesarean Section: Pragmatic Randomized Trial

The following abstracts of articles from leading journals have been selected on the basis of their importance to the practice of obstetrics and gynecology.

Antenatal betamethasone and incidence of neonatal respiratory distress after elective caesarean section: pragmatic randomised trial

Objective To test whether steroids reduce respiratory distress in babies born by elective caesarean section at term.Design Multicentre pragmatic randomised trial.Setting 10 maternity units.Participants 998 consenting women randomised at decision...

Early amniocentesis versus transabdominal chorion villus sampling for prenatal diagnosis.

A major disadvantage of amniocentesis is that test results are usually available only after 18 weeks gestation. Early amniocentesis can now be done between 9 to 14 weeks gestation. The objective was to assess the safety and accuracy of early amniocentesis compared with chorion villus sampling. The Cochrane Pregnancy and Childbirth Group trials register and the Cochrane Controlled Trials Register were searched. Date of last search: October 1998. Randomised trials comparing early amniocentesis with transabdominal chorion villus sampling. One reviewer assessed eligibility and trial quality. Three studies were included. Sampling failure was 0.4% in the early amniocentesis group compared to 2% in the chorion villus group (relative risk 0.23, 95% confidence interval 0.08 to 0.65). Consequently, more women in the chorion villus sampling group needed a second prenatal diagnostic test (relative risk 0.43, 95% confidence interval 0.21 to 0.88). There were no statistically significant differences in the laboratory failures (relative risk 0.43, 95% confidence interval 0. 17 to 1.10) or number of women with various chromosomal abnormalities (relative risk 0.51, 95% confidence interval 0.26 to 1. 04). Combined total pregnancy loss in the early amniocentesis group was 6.2% (57/915) compared with 5% (46/917) in the chorion villus sampling group (relative risk 1.24, 95% confidence interval 0.85 to 1.81). There were more spontaneous miscarriages after early amniocentesis (4.4% versus 2.3%, relative risk 1.92, 95% confidence interval 1.14 to 3.23). There was no difference in the incidence of neonatal respiratory distress and anomalies in the newborn infants. The incidence of talipes was greater in the early amniocentesis group, although haemangiomas were more common in the chorion villus sampling group. Current data suggest that early amniocentesis is associated with a greater risk of spontaneous miscarriage and neonatal talipes compared to transabdominal chorion villus sampling. An increased risk of these complications needs to be weighed against fewer technical difficulties and the possibility of fewer neonatal haemangiomas.