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Acute myocarditis in infants. Initial presentation
1Department of Pediatrics, University of Miami School of Medicine, FL 33101.
Insights
Acute myocarditis in infants presents with severe respiratory distress and tachycardia. Early recognition and Pediatric Intensive Care Unit (PICU) admission are crucial for management and improving outcomes.
Area of Science:
- Pediatric Cardiology
- Neonatal Critical Care
Background:
- Acute myocarditis is a rare but serious condition in infants.
- Early diagnosis and management are critical for patient survival.
Purpose of the Study:
- To review the initial presentation of infants diagnosed with acute myocarditis.
- To identify key clinical and diagnostic features suggestive of acute myocarditis in neonates.
Main Methods:
- Retrospective review of seven infant cases with acute myocarditis.
- Analysis of presenting symptoms, physical examination findings, chest X-rays, and electrocardiograms.
Main Results:
- All infants presented with respiratory distress (tachypnea, intercostal retractions).
- Tachycardia, grunting, and abnormal electrocardiograms were common.
- Cardiomegaly was observed in 5/7 infants; 6/7 required tracheal intubation and PICU admission.
- Two patients (28.6%) died, highlighting the severity of the condition.
Conclusions:
- Acute myocarditis should be suspected in infants with severe respiratory distress, tachycardia, cardiomegaly, or ECG abnormalities.
- Prompt stabilization and PICU admission are essential for further evaluation and treatment.
- Increased awareness and timely intervention can potentially improve outcomes in pediatric myocarditis.
Abstract:
The authors reviewed the initial presentation of seven infants with acute myocarditis. All patients presented with respiratory distress including tachypnea (respiratory rate greater than or equal to 40) and intercostal retractions. Other findings included tachycardia (heart rate greater than or equal to 120) (7/7) and grunting (6/7). Lungs were clear to auscultation in six out of the seven patients. Cardiomegaly was seen in five of the initial chest roentgenograms. Each initial electrocardiogram had abnormal findings. Initial diagnoses were sepsis and shock in three patients, pneumonia and asthma in two, and congestive heart failure in two. Six patients required tracheal intubation. All required admission to the Pediatric Intensive Care Unit (ICU). Two patients died. Myocarditis should be suspected in a child presenting with severe respiratory distress, tachycardia, cardiomegaly, and/or an abnormal electrocardiogram. Prompt stabilization and admission to a pediatric intensive care unit for further evaluation and treatment is essential.