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[Prognostic factors for mechanical ventilation in infants with acute lower respiratory disease]
Adriana Gut Lopes Riccetto1, José Dirceu Ribeiro, Marcos Tadeu Nolasco da Silva
1Universidade Estadual de Campinas--UNICAMP, SP. a.riccetto@uol.com.br
Insights
Infants under 3 months, those with limited breastfeeding, and cyanosis are at higher risk for needing invasive mechanical pulmonary ventilation for lower respiratory infections. These infants often require extended hospital stays and are prone to readmission.
Area of Science:
- Pediatric critical care
- Infectious diseases
- Respiratory medicine
Context:
- Acute lower respiratory tract infections (ALRTI) are a leading cause of pediatric hospital admissions.
- A significant subset of these patients requires invasive mechanical pulmonary ventilation (IMPV).
- Understanding prognostic factors for IMPV is crucial for resource allocation and patient management.
Purpose:
- To identify prognostic factors associated with the need for invasive mechanical pulmonary ventilation (IMPV) in infants hospitalized with acute lower respiratory infection.
- To compare prognostic factors between infants requiring IMPV and those who do not.
Summary:
- A prospective cohort study of 152 infants identified key risk factors for IMPV, including age less than 3 months (RR=2.35), breastfeeding for less than 1 month (RR=3.15), and cyanosis (RR=7.55).
- Infants requiring IMPV experienced significantly longer hospitalizations (>10 days, RR=13.69), prolonged oxygen therapy (>10 days, RR=13.57), increased antibiotic use (RR=3.03), and higher readmission rates (RR=5.23).
Impact:
- Early identification of infants at risk for IMPV allows for proactive management and potentially reduces morbidity.
- The findings highlight the vulnerability of young infants with ALRTI, underscoring the need for intensive monitoring and support.
- This research informs clinical decision-making, emphasizing the importance of factors like age and feeding history in predicting ventilation needs and hospital outcomes.
Objective:
Acute lower respiratory tract infections are the most common cause of hospital admission in pediatrics. A number of admitted patients need invasive mechanical pulmonary ventilation (IMPV). This study aimed to evaluate prognostic factors for IMPV in infants admitted due to acute lower respiratory infection.
Methods:
A prospective cohort study was conducted from April to September, 2004, in two university hospitals of the Campinas metropolitan area, São Paulo, Brazil. One hundred, fifty-two infants were enrolled. Epidemiological and clinical data were recorded at admission and follow-up. Two groups were analyzed, according to the need of IMPV, with a comparison of prognostic factors. Association between risk factors and the outcome were studied and assessed by Relative Risk (RR), with confidence intervals of (95%CI).
Results:
Twenty-one patients (13.81%) needed IMPV. Factors significantly associated with IMPV on admission were: age < 3 months (RR=2.35, 95%CI:1.06-5.22), breast feeding < 1 month (RR=3.15, 95%CI:1.35-7.35) and cyanosis (RR=7.55, 95%CI:5.01-11.36). In the IMPV group, increased risks for hospitalization > 10 days (RR=13.69, 95%CI:4.92-38.09), oxygen therapy > 10 days (RR=13.57, 95%CI:5.41-34.03), antibiotic usage (RR=3.03, 95%CI:1.34-6.89) and readmission (RR=5.23, 95%CI:2.12-12.91) were observed.
Conclusion:
The associations between need of IMPV and early age, reduced breast feeding and cyanosis demonstrate diminished physiological reserves in the young infant with lower respiratory infection. These patients require prolonged and intensive hospital support and readmission.
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