Laboratory Diagnosis of Fetal Infections

Congenital Candida pneumonia in a preterm infant

A 24 week gestation survivor of congenital Candida pneumonia who received prompt antifungal treatment and modern neonatal intensive care is reported. It was an unusual case in that fungal chorioamnionitis occurred without a foreign body in the maternal genital tract. Early diagnosis and treatment of congenital fungal pneumonia was possible because of prior knowledge of the obstetric history. Amphotericin B was successfully used for the treatment of this condition but combination with fluconazole (a fungistatic agent) was unsatisfactory and may be undesirable. Dexamethasone therapy to assist extubation was instituted once the fungal infection had been successfully controlled.

Systemic fungal infections in neonates

Systemic fungal infections, previously considered to be a rare complication, are now frequently diagnosed in VLBW infants receiving intensive care. Confirming the diagnosis by laboratory tests is difficult and a high index of suspicion is required. Prompt and aggressive use of antifungal treatment is justified in a clinically septic neonate, especially those with a raised serum concentration of C reactive protein, who do not show a satisfactory response to antibiotics. The newer generation of liposomal amphotericin and azole antifungal drugs appear to be safe, effective, and well tolerated. With increasing awareness, prompt treatment, and better neonatal intensive care, the outcome of systemic fungal infection in preterm infants should improve.