Pradeep Kumar Elangovan
Gheeth Hospital, IndiaPresentation Title:
Necrotizing pneumonia in a vaccinated child: A rare complication of viral and bacterial co-infection
Abstract
Necrotizing pneumonia is a rare but life-threatening complication of community-acquired pneumonia in children, characterized by lung parenchymal destruction, cavitation, and empyema. Despite widespread pneumococcal vaccination, it can still occur in fully immunized, otherwise healthy children, often due to viral–bacterial co-infection. We report a case of a three-year-old, developmentally normal, fully vaccinated female child who presented with prolonged fever and progressive respiratory distress. Investigations revealed severe anemia, marked leukocytosis, and elevated inflammatory markers. Chest radiography and ultrasound showed bilateral lower lobe consolidation with right-sided pleural effusion, while contrast-enhanced CT confirmed cavitations and necrotizing changes. Respiratory viral panel was positive for influenza A, parainfluenza, and rhinovirus, and pneumococcal antigen was detected in pleural fluid, although blood and pleural fluid cultures were sterile.
Despite broad-spectrum antibiotics and antiviral therapy, the child had persistent fever and respiratory compromise, necessitating video-assisted thoracoscopic surgery with decortication. Intraoperative findings included thick pleural peel and loculated pus collections. Postoperatively, the child showed steady clinical improvement with resolution of fever, normalization of inflammatory markers, and complete radiological lung re-expansion. This case highlights the importance of early recognition of necrotizing pneumonia even in vaccinated children. Viral–bacterial synergism significantly contributes to disease severity, and negative cultures should not delay diagnosis. Prompt multidisciplinary care and timely surgical intervention are key to favorable outcomes.
Biography
Pradeep Kumar Elangovan is a pediatrician at Gheeth Hospital, India, working predominantly in resource-limited and rural settings. He has extensive experience in managing common and complicated pediatric illnesses, with a special interest in vaccine-preventable diseases and pediatric infections. His clinical work focuses on early recognition, rational use of investigations and antibiotics, and timely multidisciplinary intervention in settings with limited resources. He is actively involved in mentoring junior doctors and sharing practical, case-based learning through academic meetings and clinical discussions aimed at improving child health outcomes in rural India.