Assessment and comparison of mortality and short-term outcomes among premature infants before and after 32-week gestation: A cross-sectional analysis

BACKGROUND

Prematurity is a major cause of neonatal morbidity and mortality. The aim of this study is to assess the rate of prematurity and determine the mortality rate and short-term outcomes among premature infants admitted at King Abdullah University Hospital (KAUH) in Jordan.

MATERIALS AND METHODS

A retrospective cross-sectional review of all premature infants admitted at KAUH between August 2016 and August 2018 was conducted. Collected data include characteristics, medical interventions, morbidities, mortality, and discharge outcomes. Included infants were divided into two groups: less than 32-week gestation (group 1) and ≥32-week gestation (group 2). The outcomes were compared between both groups and reported accordingly.

RESULTS

Out of 7020 newborns, 1102 were delivered before 37-week gestation, representing a prematurity rate of 15.7%. The mean gestational age and birth weight were 33.8 weeks and 2116 grams respectively. Group 1 comprised 13%. Late preterm infants (gestational age 34 to 36 6/7 weeks) accounted for 74%. The mortality rate was 4.6%. More infants died from group 1 (29% vs. 1.5%, p < 0.05). Group 1 infants had higher rates of respiratory distress syndrome (92% vs. 30%), bronchopulmonary dysplasia (28.4% vs. 1.1%), severe intraventricular hemorrhage (5.9% vs. 0.1%), high-stage retinopathy of prematurity (6.6% vs. 0.2%), necrotizing enterocolitis (9.2% vs. 0%), and sepsis (18.4% vs. 2.1%). At discharge, there was a significant difference in the length of stay, corrected gestational age, and weight in favor of group 2 (p < 0.05).

CONCLUSIONS

Although high rate of prematurity was observed, the majority were late preterm with reassuring outcomes. Compared with >32-week infants, the mortality and short-term complications were more frequent among those born before 32 weeks. Still, the overall mortality rate and risk of morbidities were reasonable. Population-based analysis of the risk factors among the more vulnerable very preterm and extremely premature infants is recommended to better understand the outcomes.

Indications and Clinical Profile of Neonatal Admissions: A Cross-Sectional Descriptive Analysis from a Single Academic Center in Jordan

PURPOSE

To review the indications and clinical profile of neonatal admissions at King Abdullah University Hospital in Jordan.

MATERIALS AND METHODS

We conducted a cross-sectional review of all neonates admitted to the neonatal intensive care unit between September 2016 and September 2018. Collected data include demographic characteristics, indications for admission, morbidities and mortality, and discharge outcomes. Findings were reported among term and preterm infants.

RESULTS

A total of 1444 infants were admitted during the study period of whom 1332 (92.2%) were inborn and 612 (42.4%) were term neonates. Of the 832 preterm infants, 545 were late preterm (34-36 6/7 gestation) and 125 had very low birth weight (˂ 1500 grams); 925 (64%) were born by cesarean section. Respiratory failure of the newborn (41.2%) and prematurity (33.3%) were the main indications for admission among the whole cohort. Maternal prolonged premature rupture of membranes (PROM) was observed in nearly half the admissions of term infants. Hypoxic ischemic encephalopathy (3.2% vs 0.7%, p 0.01) and congenital anomalies (5% vs 1.2%, p 0.03) were more common in term infants. The rate of bronchopulmonary dysplasia was 39% among <28-week and 28% among <32-week premature infants. Sepsis was encountered in 59 infants. The overall mortality rate was 3.8%. Prematurity was the main predisposing factor for mortality (Adjusted OR: 9.9, 95% CI: 3.5, 27.6).

CONCLUSION

The majority of neonatal admissions at our institution are term and late preterm infants delivered by cesarean section. Prematurity, respiratory failure of the newborn, and suspected sepsis due to maternal PROM are the leading causes of admission. The mortality rate is within WHO target to achieve Sustainable Development Goal 3. Population-based studies are needed to make better conclusions that represent the whole Jordanian population. A revisit for the indications of cesarean deliveries may help to improve the neonatal outcomes.

Continuing epidural analgesia during the second stage and ACOG definition of arrest of labor on maternal-fetal outcomes

Background

Despite an increase in the rates of epidural labor analgesia, continuation of epidural labor analgesia in the second stage of labor (CEADSSOL) was interrupted by care providers due to fears of increased risk of operative delivery and adverse neonatal outcomes. Therefore, we evaluated the effect of CEADSSOL and the newer American College of Obstetricians and Gynecologists (ACOG) definition of arrest of labor on the length of secondary stage of labor, newborn outcomes, and mode of delivery.

Methods

This is a retrospective cohort study. Data collection began during March 2014 and ended in May 2015, 1 year after implementation of both interventions. The primary outcome was the length of secondary stage of labor, mode of delivery and neonatal outcome (Apgar < 7, at 5 minutes). The implementation of continuing epidural analgesia during the second stage of labor was performed with 0.08%‐0.15% ropivacaine and 0.1‐0.2 µg/mL sufentanil.

Results

There were a total 10 414 deliveries during the study period. The length of the second stage of labor has no significant differences among groups. The cesarean delivery rate decreased 4.1% (36% vs 40.1%, P = .0038). Moreover, no significant difference was found in neonatal Apgar scores less than 7 at 5 minutes between two phases. Maternal outcomes remained unchanged. Post‐intervention neonatal parameters including NICU admissions (P < .001), incidences of antibiotics usage (P < .0001), intubation (P = .0003), and 7 days mortality (P = .0020) were remarkably reduced compared to pre‐interventions.

Conclusion

The important finding of this study was the improvement in neonatal outcomes by implementing two simultaneous interventions without a cost of increased operative delivery.

The Impact of Severe Maternal Morbidity on Very Preterm Infant Outcomes

OBJECTIVE

To estimate the prevalence of severe maternal morbidity among very preterm births and determine its association with very preterm infant mortality and morbidity.

STUDY DESIGN

This study used New York City Vital Statistics birth and death records linked with maternal and newborn discharge abstract data for live births between 2010 and 2014. We included 6901 infants without congenital anomalies born between 24^0/7 and 32^6/7 weeks of gestation. Severe maternal morbidity was identified as life-threatening conditions or life-saving procedures. Outcomes were first-year infant mortality, severe neonatal morbidity (bronchopulmonary dysplasia, severe necrotizing enterocolitis, stage 3-5 retinopathy of prematurity, and intraventricular hemorrhage grades 3-4), and a combined outcome of death or morbidity.

RESULTS

Twelve percent of very preterm live-born infants had a mother with severe maternal morbidity. Maternal and pregnancy characteristics associated with occurrence of severe maternal morbidity were multiparity, being non-Hispanic black, and preexisting health conditions, but gestational age and the percentage small for gestational age did not differ. Infants whose mothers experienced severe maternal morbidity had higher first-year mortality, 11.2% vs 7.7% without severe maternal morbidity, yielding a relative risk of 1.39 (95% CI: 1.14-1.70) after adjustment for maternal characteristics, preexisting comorbidities, pregnancy complications, and hospital factors. Severe neonatal morbidity was not associated with severe maternal morbidity.

CONCLUSIONS

Severe maternal morbidity is an independent risk factor for mortality in the first year of life among very preterm infants after consideration of other maternal and pregnancy risk factors.

Decreasing NICU admissions of asymptomatic infants of women with pregestational diabetes mellitus improves breastfeeding initiation rates

BACKGROUND

Asymptomatic infants born to women with pregestational diabetes mellitus (PGDM) are usually admitted to the well baby nursery (WBN) while those who are symptomatic or in need of specialized care are admitted to the neonatal intensive care unit (NICU).

OBJECTIVE

To determine if changes in the NICU admission rate of asymptomatic infants born to women with PGDM during two different epochs affected breastfeeding (BF) initiation rates.

DESIGN/METHODS

Retrospective cohort investigation of 386 women with PGDM and their infants who delivered in 2008-11 (epoch 1) and 457 who delivered in 2013-16 (epoch 2) at a single institution.

RESULTS

NICU admissions: Comparison between epoch 1 and epoch 2 showed a decrease in the number of admissions from 243 (63%) to 175 (38%) *(chi square *p < 0.05). Respiratory distress (39 and 43%) and prematurity (28 and 23%) as admission diagnoses remained unchanged. Admissions for prevention of hypoglycemia declined (32% to 21%)*. At discharge from the NICU, exclusive BF (12 to 19%)* and any BF increased (41 to 55%)* while formula feeding (FF) decreased (59 to 45%)*. Admission to the NICU remained a strong predictor of BF initiation failure (a OR 0.6, 95% , CI 0.4-0.9, p 0.005).WBN admissions: Comparison between epoch 1 and epoch 2 showed an increase in the number of admissions from 143 (37%) to 282 (62%)*. The incidence of hypoglycemia (31% and 38%) and its correction with oral feedings (76% and 71%) remained unchanged. At discharge from the WBN, exclusive BF (15 to 27%)* and any BF (52 to 62%)* increased while FF decreased (48 to 38%)*.

CONCLUSIONS

A decrease in the number of NICU admissions of asymptomatic infants born to women with PGDM is associated with improvements in BF initiation rates.