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KMID : 0604020110260040272
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Korean Journal of Critical Care Medicine
2011 Volume.26 No. 4 p.272 ~ p.275
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Multiple Bilateral Perfusion Defects in the Infant with Acute Viral Bronchiolitis
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Chung Woo-Jin
Choi Jae-Wook
Han Young-Joo
Park June-Dong
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Abstract
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Acute viral bronchiolitis (AVB) is an obstructive lung disease which frequently develops in infants and the most common functional involvement is a V/Q ratio change caused by small airway obstruction. We report a case showing the redistribution of pulmonary blood flow by multiple perfusion scan defects in an infant with AVB. A 15 month-old male infant visited ER due to respiratory difficulty. He manifested decreased lung sound in the left lung field, hyperinflation of the left lung on chest x-ray, and metabolic acidosis in blood gas analysis. A perfusion scan showed multiple perfusion defects of both lungs without the evidence of pulmonary embolism on a following cardiac CT and echocardiography. Human Rhinovirus PCR in a nasopharyngeal aspirate was positive. With supportive care, the symptom was resolved in 4 days. AVB can show multiple perfusion defects by the redistribution of pulmonary blood flow of which the direction is opposite to the usual distribution of pulmonary blood flow in children.
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KEYWORD
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acute viral bronchiolitis (AVB), perfusion defects, pulmonary blood flow
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