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Extralobar pulmonary sequestration: analysis of 15 cases
Insights
Extralobar pulmonary sequestration is a rare congenital lung malformation. Early diagnosis in newborns is critical, as most infants with this condition diagnosed at birth did not survive.
Area of Science:
- Pediatric Surgery
- Neonatal Medicine
- Thoracic Pathology
Background:
- Extralobar pulmonary sequestration (EPS) is a congenital lung malformation.
- It involves lung tissue with an abnormal systemic arterial supply and venous drainage.
- This condition can lead to significant respiratory distress and mortality in neonates.
Purpose of the Study:
- To analyze the clinical presentation and outcomes of patients with extralobar pulmonary sequestration.
- To identify associated congenital anomalies and their impact on survival.
- To describe the pathological findings in affected infants.
Main Methods:
- Retrospective review of 15 patients diagnosed with extralobar pulmonary sequestration.
- Analysis of clinical data, including age at diagnosis, associated anomalies, and outcomes.
- Pathological examination of resected specimens and autopsy findings.
Main Results:
- Twelve of 15 patients (80%) were diagnosed on the first day of life, and all died.
- EPS occurred more frequently in males (11 cases).
- Associated anomalies were common (10/15 patients), including diaphragmatic hernia and bronchogenic cysts. Four infants presented with polyhydramnios and/or edema. Lymphatic dilatation was noted in four cases.
Conclusions:
- Extralobar pulmonary sequestration diagnosed neonatally has a very high mortality rate.
- The presence of associated congenital anomalies significantly impacts prognosis.
- Early recognition and management strategies are crucial for improving outcomes in affected infants.
Abstract:
Extralobar pulmonary sequestrations occurring in 15 patients were studied. Twelve of the lesions were discovered during the first day of life; all of these patients died. The lesions occurred more often in male patients (11 cases). Polyhydramnios was present in four infants, and these four plus an additional infant had localized or generalized edema. Associated congenital anomalies were present in ten patients, including three examples each of diaphragmatic hernia and bronchogenic cyst. In one case the extralobar pulmonary sequestration was composed entirely of a congenital cystic adenomatoid malformation. In one other case, congenital adenomatoid malformation was present in a nonsequestered portion of lung. Significant lymphatic dilatation was found in four cases, two of which resembled congenital lymphangiectasis. Hyaline membranes, present in the normal lungs of three preterm infants, were absent in extralobar pulmonary sequestrations.