Susan E. Hines

Assessment of adherence to antiviral therapy in HIV-infected children using the Medication event monitoring system, pharmacy refill, provider assessment, caregiver self-report, and appointment keeping

The authors sought to assess the utility of the electronic Medication Event Monitoring System (MEMS) in monitoring adherence to highly active antiretroviral therapy (HAART) in HIV-infected children and to compare this with other methods of adherence assessment. Twenty-six perinatally HIV-infected children being treated with three or more antiretroviral medications and their caregivers were enrolled and prospectively followed-up for 6 months. Adherence was assessed using MEMS monitoring of one antiretroviral, pharmacy refill records of all antiretrovirals, a caregiver self-report interview, a physician/nurse questionnaire, and appointment-keeping behavior. Viral loads measured at the end of the 6-month period were compared with the various adherence assessment methods. Adherence rates for the MEMS-monitored medication ranged from 12.7% to 97.9% (median = 81.4%), and 11 of the participants (42%) had less than 80% adherence using this method. A MEMS adherence rate greater than 80% was associated with viral load below the threshold of detection 6 months after enrollment (p <.001). Although not as robust, pharmacy refill rates for all antiretroviral medications were also associated with virologic response. The highest specificity was attained when both MEMS and pharmacy refill were used in combination. Physician assessment of adherence rate as well as appointment-keeping behavior was associated with virologic response, whereas caregiver self-report was not.

Invasive pneumococcal disease among infected and uninfected children of mothers with human immunodeficiency virus infection

OBJECTIVE To describe the incidence and clinical presentation of invasive pneumococcal disease in a cohort of children infected with human immunodeficiency virus (HIV) who were prospectively followed from birth, in comparison with uninfected children born to HIV-infected mothers and control children. DESIGN Prospective follow-up of a cohort recruited at birth and born to mothers with known HIV status. The person-years analysis method used the occurrence of invasive pneumococcal disease as the end point. SETTING Hospital-based clinic specializing in care of HIV-at-risk and HIV-infected children in Baltimore, Md. PARTICIPANTS Forty-one vertically HIV-infected children, 128 uninfected children born to HIV-infected mothers, and 71 control children born to mothers with negative findings for HIV but with HIV risk factors. RESULTS Among HIV-infected children, 10 episodes of invasive pneumococcal disease occurred during the first 36 months of life compared with 4 episodes among uninfected children and 1 episode among control subjects. The relative risk for HIV-infected children versus the combined uninfected and control groups was 12.6 with a 95% confidence interval (5.4, 28.8) and a p value for difference between groups of < 0.001. The incidence rate per 100 child-years of observation during the first 36 months of life was 11.3 for HIV-infected, 1.1 for uninfected, and 0.5 for control children. Clinical and laboratory variables were not useful in identifying HIV-infected children at risk for pneumococcal disease. CONCLUSION Practical strategies to prevent pneumococcal disease among HIV-infected children need to be developed.

The Effect of Swimming in Asthmatic Children—Participants in a Swimming Program in the City of Baltimore

Forty-five asthmatic children were enrolled in a swimming program in Baltimore. After participating in a 2-month swimming session, the children showed significant improvement in all clinical variables including symptoms, hospitalizations, emergency room visits, and school absenteeism compared with their previous medical history or to those of age-matched controls. These health benefits continued to be observed even 12 months after the session had been completed. The implications of these findings and the potential usefulness of adding sports programs as adjunct therapy in the comprehensive care of asthma in children are discussed.

Detection of salivary immunoglobulin A antibodies to HIV-1 in infants and children.

Secretory immunoglobulin A (slgA) antibodies of non-maternal origin are present in newborns and slgA to HIV-1 antigens has been detected in infected adults. In this study we investigated the presence of HIV-1-specific IgA in saliva from 41 children (aged 1 day–46 months) born to women at risk for HIV-1 infection. Saliva samples were assayed for HIV-1 antibodies with IgA-specific Western blot. The samples from 10 out of 11 children with subsequently proven infection, including one aged 6 months, demonstrated IgA antibodies to HIV-1 envelope antigens. Samples from infants under 15 months, who were born to infected mothers and subsequently shown to be uninfected, were slgA negative. Of the 12 children with continued indeterminate HIV-1 status, eight showed neither slgA nor serologic evidence of infection and four showed slgA antibodies. HIV-1-specific slgA was detectable before the age of 15 months and may prove to be valuable in the diagnosis of HIV-1 infection in infants.

Surgical intervention in children with human immunodeficiency virus infection

Twenty-one children with human immunodeficiency virus (HIV) infection required surgical intervention during the course of their disease. There were 11 females and 10 males (age range, 3 months to 6 years). The children underwent 54 operative procedures after diagnosis of their disease. These included placement of central venous catheter (23 patients), open lung biopsy (11), incision and drainage of perirectal abscess (4), incision and drainage of soft tissue abscess (5), myringotomy (2), diverting colostomy (3), Nissen fundoplication (1), and other (5). All 21 patients had clinical AIDS by the Centers for Disease Control CDC classification. To date, there have been 12 deaths in the 21 patients (57%) due to progressive deterioration with the patients disease. Most procedures were adjuncts for diagnostic and therapeutic intervention in a population of children with a uniformly fatal disease. The knowledge of various high risk groups for AIDS must heighten the surgeons awareness to the growing and significant pediatric segment of the HIV population, the complications of their disease, and the surgeons limited role in treating these problems.

Vertical Transmission of Human Immunodeficiency Virus From Seronegative or Indeterminate Mothers

UNLABELLED OBJECTIVE--To describe the identification of human immunodeficiency virus (HIV)-infected infants born to women who were seronegative or indeterminate during pregnancy. RESEARCH DESIGN--Longitudinal cohort study. SETTING--Inner-city medical center. PARTICIPANTS A series of children born to women with histories of risk factors for HIV infection were followed up for studies of the natural history of HIV-infected infants. These children were identified through risk factor assessment of pregnant women presenting for obstetric care. INTERVENTIONS--Counseling and testing to detect HIV. RESULTS--Three women were retrospectively identified who were infected with HIV during pregnancy but whose test results showed them to be either seronegative or indeterminate. Two of these women transmitted HIV infection to their children. Subsequently, all three women were confirmed to be infected. CONCLUSIONS--Standard serologic testing to detect HIV infection will not identify all infected pregnant women. Perinatal transmission of HIV can occur in women with negative results of enzyme-linked immunosorbent assay or indeterminate results of Western blot analysis during pregnancy.