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Pulmonary hemorrhage in very low-birthweight infants: risk factors and management
Ying-Yao Chen1, Hsiao-Ping Wang, Shu-Ming Lin
1Division of Neonatology, Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan. yiyychen@vghks.gov.tw
Insights
Modified intratracheal epinephrine treatment significantly improved survival rates for very low-birthweight infants suffering from massive pulmonary hemorrhage. Key risk factors include smaller gestational age, lower birthweight, and severe respiratory distress syndrome.
Area of Science:
- Neonatal Medicine
- Pediatric Critical Care
- Pulmonary Medicine
Background:
- Intratracheal epinephrine administration for massive pulmonary hemorrhage (MPH) in very low-birthweight (VLBW) infants was modified in 2007.
- The study aimed to assess changes in VLBW infant outcomes and identify MPH risk factors post-modification.
Purpose of the Study:
- To evaluate the impact of a modified intratracheal epinephrine protocol on VLBW infant survival.
- To identify and analyze risk factors associated with massive pulmonary hemorrhage in VLBW infants.
Main Methods:
- A retrospective cohort study comparing VLBW infants with and without MPH.
- Data analysis included mortality, risk factors, and infant characteristics between two periods: 2000-2006 and 2007-2010.
- Utilized the Premature Baby Foundation of Taiwan database.
Main Results:
- Overall survival rate was 84.2% among 399 VLBW infants.
- Infants with MPH had significantly lower birthweight and gestational age, lower Apgar scores, and higher rates of severe respiratory distress syndrome (RDS) and intraventricular hemorrhage.
- Survival rate for VLBW infants with MPH improved dramatically from 18.2% (2000-2006) to 80% (2007-2010) after protocol modification (P=0.0000002).
Conclusions:
- Smaller gestational age, lower birthweight, lower Apgar scores, severe RDS, and surfactant use are significant risk factors for MPH in VLBW infants.
- Preventative measures like proper prenatal care and preventing premature labor are crucial.
- The modified intratracheal epinephrine administration technique shows promise in improving survival rates.
Background:
Beginning 2007, the intratracheal route of epinephrine to end massive pulmonary hemorrhage (MPH) in very low-birthweight (VLBW) infants was modified at Kaohsiung Veterans General Hospital. The aim of the present study was to assess the change in outcomes for these infants, and to evaluate the risk factors of MPH.
Methods:
Using the database of the Premature Baby Foundation of Taiwan, the mortality, risk factors and characteristics of VLBW infants with or without MPH were compared between 2000-2006 and 2007-2010.
Results:
Between January 2000 and December 2010, 399 VLBW infants were admitted to Kaohsiung Veterans General Hospital. Mean birthweight (BW) was 1099.6 ± 272.7 g, and mean gestational age (GA) was 28.7 ± 2.9 weeks. The overall survival rate was 84.2%. Sixteen (4%) had MPH: 11 in the first group (2000-2006; 18.2% survival rate), and five in the second group (2007-2010; 80% survival rate; P= 0.0000002). Infants with MPH had lower mean BW (864.9 ± 301.4 g, P= 0.0004), smaller mean GA (26.1 ± 2.0 weeks, P= 0.0002), significantly lower Apgar scores at 1 and 5 min, higher severity of respiratory distress syndrome (RDS; grades 3 or 4), and greater use of surfactant than infants without MPH. They also had more intraventricular hemorrhage and higher mortality.
Conclusions:
Smaller GA, lower BW, lower Apgar scores at 1 and 5 min, severe RDS (grades 3 or 4), and use of surfactant place VLBW infants at greater risk of MPH. Proper prenatal care and preventing premature labor and delivery were the most important preventative factors. A quick, deep thrust of intratracheal epinephrine with a catheter may improve survival.
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