Effectiveness of antibiotic therapy in pediatric patients with cat scratch disease.

Background Appropriate antibiotic treatment of cat scratch disease (CSD) in pediatrics is not well established. Objective The purpose of this study was to evaluate the response rates of antibiotic therapy in pediatrics with CSD. Methods The electronic medical records of a cohort of pediatric patients with confirmed diagnosis of CSD (2006-2016) were reviewed, retrospectively. Data collection included patient demographics, clinical and laboratory results, antibiotic treatment and follow-up evaluations. Results One hundred and seventy-five patients (aged 7.4 ± 4.4 years) had confirmed CSD. Azithromycin and trimethoprim/sulfamethoxazole (TMP/SMX) were the largest groups with documented effectiveness at follow-up visits. Resolution and improvement of CSD was observed in 51.4% and 61.5% of patients with azithromycin and TMP/SMX, respectively among those with follow-up assessment. The effectiveness of azithromycin and TMP/SMX was comparable (p = 0.56). Conclusion Azithromycin and TMP/SMX were most frequently prescribed antibiotics. Azithromycin appeared to be an appropriate option for the treatment of CSD. TMP/SMX may be considered as an alternative antibiotic when azithromycin cannot be used.

Clinical and Radiologic Manifestations of Bone Infection in Children with Cat Scratch Disease.

We identified 13 patients with cat scratch (Bartonella henselae) bone infection among those admitted to a large tertiary care children's hospital over a 12-year period. The median age was 7 years and the median time from onset of illness to diagnosis was 10 days. Multifocal osteomyelitis involving spine and pelvis was common; no patient had a lytic bone lesion. Median treatment duration was 28 days (IQR, 24.5 days). Despite significant variations in treatment duration and antimicrobial therapy choices, all patients showed improvement.

Discharge Criteria for Bronchiolitis: An Unmet Need.

BACKGROUND: Admission criteria and standardized management strategies for bronchiolitis are addressed in several guidelines and have shown to be beneficial; however, guidance regarding discharge criteria is limited and widely variable. We assessed the impact on clinical outcomes of a discharge protocol for children <2 years of age hospitalized with bronchiolitis in a tertiary care pediatric hospital. METHODS: In October 2013, a protocol to standardize the discharge of children with bronchiolitis was implemented in the infectious diseases (ID) ward but not in other pediatric units caring for these children (non-ID). The protocol included objective clinical criteria and a standardized oxygen weaning pathway. Patients were identified via International Classification of Diseases-9 codes and data manually reviewed. We compared length of stay (LOS) and readmission rates within 2 weeks of discharge according to protocol implementation (ID versus non-ID), adjusted for demographic factors, comorbidities, viral etiology and stratified by pediatric intensive care unit admission. RESULTS: From October 2013 to May 2015, 1118 children were hospitalized in ID and 695 in non-ID units. Median age was 4.5 months, 55% were males and 28% had comorbidities. LOS was 36% longer in non-ID units (risk ratio: 1.36 [1.27-1.45]; P < 0.001) adjusted for age, gender, comorbidities and viral etiology. Difference in LOS remained significant after excluding children with comorbidities and stratifying by pediatric intensive care unit admission. Readmission rates were comparable between units (ID, 2.9% versus non-ID, 2.6%). CONCLUSIONS: A standardized discharge protocol for bronchiolitis reduced LOS without increasing readmission rates. Unifying bronchiolitis discharge criteria and oxygen weaning pathways could positively impact hospital-based patient care for this condition.

Tuberculin skin testing and T-SPOT.TB in internationally adopted children.

BACKGROUND: Diagnosis of latent tuberculosis infection is a problem in children because of lack of a diagnostic standard and potential impact of previous Bacille Calmette-Guérin vaccination and exposure to environmental mycobacteria. Effectiveness and usefulness of interferon-gamma release assays in infants and younger children have yet to be clearly demonstrated. METHODS: Prospective cohort study including 109 children (4 months to 16 years) seen in an international adoption clinic at Nationwide Children's Hospital, Columbus, OH. Children were adopted from 14 countries, mostly (72.5%) from China, Russia and Ethiopia. Correspondence between tuberculin skin test (TST) and the T-SPOT.TB assay was evaluated. Factors associated with positive results on the TST and T-SPOT.TB were determined, and the impact of age on test performance was specifically addressed. RESULTS: TST was positive in 23.4% (25 of 107). T-SPOT.TB was positive in 4.6% (5 of 109). Overall agreement between TST and T-SPOT.TB was 71%, with prevalence-adjusted, bias-adjusted Kappa of 0.68. History of Mycobacterium tuberculosis exposure was associated with positive results on TST (odds ratio: 25.4, 95% confidence interval: 4.8-261.6, exact logistic regression) and T-SPOT.TB (odds ratio: 78.9, 95% confidence interval: 9.7-∞). All 5 children with positive T-SPOT.TB had TST induration ≥15 mm. No patient less than 1 year of age (n = 17) had positive TST or T-SPOT.TB. Positive TST was not associated with Bacille Calmette-Guérin vaccination or scar. CONCLUSIONS: TST was positive in a significant percentage of international adoptees. T-SPOT.TB was rarely positive and discordant results reflected negative T-SPOT.TB with positive TST. In this population latent tuberculosis infection may be over-estimated by TST. Regardless, in our context at the time of the study, treatment decisions were based upon TST results, not results of the T-SPOT.TB assay. Age was consistently associated with findings on TST and T-SPOT.TB with no positive result on either test for any child <1 year of age.

Bordetella parapertussis bacteremia: two case reports.

Bordetella parapertussis is widely recognized as a cause of a pertussis-like respiratory illness in children, but reports of invasive infection are rare. We review the literature and describe the clinical presentation and treatment of 2 children with B. parapertussis bacteremia, as well as the techniques used to isolate the organism.

Pericardial effusion complicating novel influenza A (H1N1) infection in an infant.

We report the case of a 3-month-old boy with novel influenza A (H1N1) infection complicated by pericardial effusion. The patient was treated with pericardial drainage, oseltamivir, and ibuprofen and improved. Pericarditis and pericardial effusion have been occasionally associated with influenza A infections. To our knowledge, this is the first case of pericardial effusion reported during the current novel influenza A (H1N1) pandemic.

Perinatally human immunodeficiency virus-1 infected children born to low risk mothers who tested antibody negative during pregnancy: three cases.

Current Centers for Disease Control and Prevention (CDC) recommendations suggest all pregnant women have human immunodeficiency virus (HIV) antibody testing early in pregnancy. For women with specific identified risks for HIV-1 infection, the CDC recommends repeat testing in the third trimester. We report 3 cases of infants perinatally infected with HIV-1 whose mothers tested negative for HIV-1 during the first trimester of pregnancy. Because they were not considered to be "high risk" for HIV-1 infection, they did not have a third trimester HIV test. These cases suggest that repeat HIV antibody testing may be necessary to avoid cases of perinatal transmission that might be prevented with antiretroviral treatment during pregnancy.

Erdheim-Chester's disease of the heart: a diagnostic conundrum and collision with the same mass in the orbit.

Erdheim-Chester's disease is a rare multisystem xanthogranulomatosis, afflicting the skeletal system with the occasional involvement of soft tissues. We delineate an unusual case of a cardiac variant of Erdheim-Chester's disease presenting with pericardial effusion and as a collision with a synchronous orbital manifestation. We describe our diagnostic pathway and propose a novel treatment option involving nonsteroidal anti-inflammatory drugs. The role of cyclo-oxygenase in the disease process and inhibition thereof by NSAIDs is hypothesized and discussed.

Safety, immunogenicity, and immune memory of a novel meningococcal (groups A, C, Y, and W-135) polysaccharide diphtheria toxoid conjugate vaccine (MCV-4) in healthy adolescents.

OBJECTIVE: A meningococcal (groups A, C, Y, and W-135) polysaccharide diphtheria toxoid conjugate vaccine (MCV-4; Menactra; Sanofi Pasteur Inc, Swiftwater, Pa) was developed to improve the profile of currently licensed products. The objective of this study was to compare the tolerability, immunogenicity, and immune memory of MCV-4 with those of a quadrivalent polysaccharide vaccine (PSV-4; Menomune A/C/Y/W-135; Sanofi Pasteur Inc). DESIGN, SETTING, PARTICIPANTS: A randomized, double-blind trial was performed at 11 clinical centers in the United States. The vaccine MCV-4 or PSV-4 was administered to 881 healthy 11- to 18-year-olds. Sera were collected prevaccination and 28 days postvaccination. Three-year follow-up and booster vaccination with MCV-4 were performed in a participant subset from each group and a control group. MAIN OUTCOME MEASURES: Proportion of participants with a 4-fold or greater increase in serum bactericidal antibody against each serogroup 28 days after initial vaccination, geometric mean serum bactericidal antibody titers, and safety assessments. RESULTS: Both vaccines were well tolerated; most reactions were mild. More MCV-4 recipients reported solicited local reactions (68.9%) than PSV-4 recipients (30.2%). Both MCV-4 and PSV-4 were highly immunogenic; similar proportions of participants had 4-fold or greater increases in serum bactericidal antibody (range, 80.1%-96.7%) to the 4 serogroups. Three-year follow-up showed persistence of serum bactericidal antibody and booster responses to MCV-4 consistent with immune memory in participants previously vaccinated with MCV-4, but not in those who had previously received PSV-4. CONCLUSIONS: The vaccine MCV-4 was well tolerated and highly immunogenic. Persistence of bactericidal activity with MCV-4, but not PSV-4, was evident 3 years after the initial immunization. Booster response was demonstrated after a second vaccination with MCV-4.

[Clinical presentation, differential diagnosis and treatment of lacrimal gland tumours]. / A könnymirigydaganatok klinikai tünetei, diagnosztikája és kezelése.

PURPOSE: We describe the tumours occurring in the lacrimal gland fossa region, the important symptoms and the principles of the therapy. METHODS: We surveyed the patients observed and operated at the National Institute of Neurosurgery, Budapest, Hungary. RESULTS: Space-occupying lesions of lacrimal gland fossa are: 1. Epithelial lacrimal gland tumours, which may be benign or malignant (benign pleomorphic adenoma, malignant pleomorphic adenocarcinoma, adenoid cystic carcinoma, other carcinomas). 2. Lymphoproliferative tumours (lymphoma, leukaemia, Hodgkin's disease, lymphosarcoma, plasmocytoma). 3. Pseudotumours (chronic inflammation, granuloma, sarcoidosis, reactive lymphoid hyperplasia). 4. Other tumours (dermoid cyst, haemangioma, neurinoma, haemangiopericytoma, metastatic tumour). In our Institute, 42% of the tumours of the lacrimal fossa was epithelial, 50% was lymphoid or pseudotumour, and 8% other tumours. Of the 59 primary epithelial tumours 62.7% was benign and 37.3% was malignant. The differential diagnosis and management are based on the clinical presentations, imaging studies and histological examination. CONCLUSIONS: Pleomorphic adenomas of the lacrimal gland should be diagnosed on radiological and clinical evidence, and biopsy avoided to prevent the recurrences and malignant transformation. The prognosis of pleomorphic adenomas depends on the early diagnosis and radical surgical excision of the lesion. In cases of suspected malignant epithelial tumours, lymphomas and pseudotumours, biopsy is indicated for the choice of appropriate treatment.

Depression in Children with HIV Infection: A Case Series.

About 46,000 individuals younger than 25 years of age currently have a diagnosis of human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS). During their lifetime, approximately one-third of patients with HIV may develop depression. While antidepressants have been studied in adults with HIV, no data exist to support the use of antidepressants in children and adolescents with HIV. We report a case series of seven pediatric patients with HIV who were prescribed antidepressants. Six of seven patients had mild to moderate improvements in depressive symptoms. None of our patients experienced any suicidal ideations, and adverse events were minor. No drug-drug interactions were reported, and no significant changes in CD4 counts, CD4 percentages, or viral loads occurred during antidepressant therapy. Placebo-controlled, randomized studies are needed to confirm our results in this patient population.

Primary immunodeficiencies.

Primary immunodeficiencies include a variety of disorders that render patients more susceptible to infections. If left untreated, these infections may be fatal. The disorders constitute a spectrum of more than 80 innate defects in the body's immune system. Primary immunodeficiencies generally are considered to be relatively uncommon. There may be as many as 500,000 cases in the United States, of which about 50,000 cases are diagnosed each year. Common primary immunodeficiencies include disorders of humoral immunity (affecting B-cell differentiation or antibody production), T-cell defects and combined B- and T-cell defects, phagocytic disorders, and complement deficiencies. Major indications of these disorders include multiple infections despite aggressive treatment, infections with unusual or opportunistic organisms, failure to thrive or poor growth, and a positive family history. Early recognition and diagnosis can alter the course of primary immunodeficiencies significantly and have a positive effect on patient outcome.

Mycobacterium aurum bacteremia in an immunocompromised child.

Mycobacterium aurum was cultured from the Broviac catheter of a 5-year-old child with metastatic Wilms tumor. Removal of the catheter resulted in prompt resolution of the fever and sterilization of the blood culture. This rapidly growing mycobacterium, previously believed to be a commensal, can cause disease in the immunocompromised host.

Clinical use of a simultaneous HPLC assay for indinavir, saquinavir, ritonavir and nelfinavir in children and adults.

PROTEASE INHIBITOR TDM: This study examines the importance of therapeutic drug monitoring (TDM) of protease inhibitors (PI) in adults and children infected with the human immunodeficiency virus (HIV). Pediatric patients were included because information in this population is limited. A high performance liquid chromatographic (HPLC) assay measured indinavir, saquinavir, ritonavir and nelfinavir simultaneously in 0.2 mL of plasma. Initially, the reliability, sensitivity and specificity of the assay were verified in stored samples of plasma from adult patients who had been receiving PIs. Non-detectable concentrations (ND) were <25-50 ng/mL. In 96 out of 293 stored samples from adult patients, selected randomly, concentrations of PIs were ND. In a second prospective study of 10 adults (9 mothers and one father, aged 24-42 years) and 15 children (2.9-18 years) ND levels of PI were observed frequently (27% or 4 out of 15 pediatric subjects). In the latter study, drug-drug interactions, dosing errors, noncompliance and other important problems were identified and corrected. Routine monitoring and interpretation of PI concentrations (TDM) may improve the management of adult and pediatric patients infected with HIV, especially in those who fail to respond, develop adverse effects or viral resistance, or lack compliance.