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1.
Pediatr Infect Dis J ; 17(7): 620-5, 1998 Jul.
Article in English | MEDLINE | ID: mdl-9686729

ABSTRACT

BACKGROUND: An association between recovery of Ureaplasma urealyticum from the respiratory tract of very low birth weight (VLBW) infants (< or =1500 g) and later chronic lung disease (CLD) was reported by several authors before the routine use of exogenous surfactant (SURF). We sought to assess whether this relation persists in the era of routine SURF. METHODS: We prospectively studied a cohort of 105 VLBW infants who required mechanical ventilation at < 12 h of age. Tracheal aspirates for U. urealyticum culture were obtained before administration of SURF or antibiotics. Clinicians were unaware of U. urealyticum status. Chest radiographs at 28 days were reviewed by a single pediatric radiologist, blinded to U. urealyticum status. Sample size was predetermined to detect a 30% increase in CLD among those with U. urealyticum recovery from tracheal culture (U. urealyticum-positive) with alpha <0.05 and beta <0.20. RESULTS: Of the study infants 22 were U. urealyticum-positive and 83 were U. urealyticum-negative. No differences were found between the groups for birth weight, gestational age, gender, inborn, antenatal or postnatal steroid use, SURF therapy, non-U. urealyticum infection, necrotizing enterocolitis, patent ductus arteriosus, intraventricular hemorrhage or cystic periventricular leukomalacia. At 28 days U. urealyticum-positive patients were significantly more likely to have CLD than U. urealyticum-negative [15 of 22 (68%) vs. 30 of 83 (36%); P < 0.02]. The U. urealyticum-positive patients also required significantly longer courses of supplemental oxygen and mechanical ventilation. No significant differences were found for CLD at 36 weeks postconception or duration of hospitalization, although type II error could not be excluded for these secondary endpoints. CONCLUSIONS: Respiratory U. urealyticum at or shortly after birth remains associated with CLD at 28 days despite routine use of SURF. Controlled trials of anti-Ureaplasma therapy in U. urealyticum-positive VLBWs as soon after birth as possible may determine whether CLD, duration of respiratory support and attendant costs can be decreased.


Subject(s)
Infant, Premature, Diseases/microbiology , Infant, Premature, Diseases/therapy , Infant, Very Low Birth Weight , Lung Diseases/microbiology , Lung Diseases/therapy , Pulmonary Surfactants/therapeutic use , Ureaplasma Infections/therapy , Ureaplasma urealyticum/isolation & purification , Chronic Disease , Female , Humans , Infant, Newborn , Infant, Premature , Male , Prospective Studies , Respiration, Artificial , Ureaplasma Infections/diagnosis
2.
Clin Infect Dis ; 24(2): 222-5, 1997 Feb.
Article in English | MEDLINE | ID: mdl-9114151

ABSTRACT

We describe the first documented case of Mycoplasma felis infection in a woman who had common variable immunodeficiency and who presented with septic arthritis of the left hip and right knee. M. felis was isolated from both joints. She had been exposed to cats before the diagnosis of M. felis septic arthritis was made. Both of the patient's joints were surgically debrided, and she was treated with doxycycline for several months. In spite of initial improvement, destruction of her hip was noted. Subsequently, she underwent hip arthroplasty; histopathological examination of the bone at the time of surgery showed chronic osteomyelitis, and doxycycline therapy was continued.


Subject(s)
Agammaglobulinemia/complications , Arthritis, Infectious/etiology , Mycoplasma Infections/etiology , Animals , Arthritis, Infectious/therapy , Cats , Common Variable Immunodeficiency/complications , Doxycycline/therapeutic use , Female , Humans , Middle Aged , Mycoplasma Infections/therapy
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