The critical role of social workers in home-based primary care.

The growing homebound population has many complex biomedical and psychosocial needs and requires a team-based approach to care (Smith, Ornstein, Soriano, Muller, & Boal, 2006). The Mount Sinai Visiting Doctors Program (MSVD), a large interdisciplinary home-based primary care program in New York City, has a vibrant social work program that is integrated into the routine care of homebound patients. We describe the assessment process used by MSVD social workers, highlight examples of successful social work care, and discuss why social workers' individualized care plans are essential for keeping patients with chronic illness living safely in the community. Despite barriers to widespread implementation, such social work involvement within similar home-based clinical programs is essential in the interdisciplinary care of our most needy patients.

The association between second trimester estimated fetal weight and small for gestational age at birth.

OBJECTIVE: To analyze diagnostic accuracy of second trimester ultrasound fetal growth parameters as predictors of small for gestational age (SGA) birth weight. METHODS: We reviewed the fetal biometry from 714 consecutive patients with second trimester ultrasounds. The estimated fetal weight (EFW) and abdominal circumference (AC) percentiles were tested as predictors of SGA at birth (<10‰). RESULTS: 87 (12.2%) patients had an SGA baby. Patients with a second trimester EFW ≤25‰ were significantly more likely to have SGA at birth (24.2% versus 10.3%, p < 0.001). Similar results were seen for women with second trimester AC ≤25‰ (likelihood of SGA 21.9% versus 11.2%, p = 0.013). A second trimester EFW ≤25‰ was a better predictor of SGA at birth than a second trimester EFW ≤ 10‰ (Positive likelihood ratio 2.30 versus 2.09). In the second trimester, only 9 (1.3%) patients had an EFW 0-10‰, only 43 (6%) patients had an EFW 11-20‰, and only 46 (6.4%) patients had an EFW 91-99‰. Each other EFW centile had more than 10% of the patients. CONCLUSIONS: The incidence of second trimester EFW or AC ≤10‰ is less common than expected from standard tables. An EFW ≤25‰ and an AC ≤25‰ should be considered the second trimester marker for risk of SGA at birth. However, due to the low likelihood ratio of, it is not clear if second trimester ultrasound should be used as a predictor of SGA at birth.

Aspirin attenuates platelet activation and immune activation in HIV-1-infected subjects on antiretroviral therapy: a pilot study.

BACKGROUND: Mechanisms for increased cardiovascular risk in HIV-1-infected adults are incompletely understood, but platelet activation and immune activation leading to a prothrombotic state have been proposed as significant contributors. Aspirin has antiplatelet and immunomodulatory properties. We explored whether 1 week of low-dose aspirin attenuates platelet activation and immune activation in HIV-1-infected and virologically suppressed adults on antiretroviral therapy. METHODS: Platelet activation and immune activation were measured in HIV-1-infected subjects virologically suppressed on antiretroviral therapy and controls before and after 1 week of low-dose aspirin. RESULTS: Compared with control subjects, HIV-1-infected subjects had increased platelet activation, as measured by spontaneous platelet aggregation and aggregation in response to adenosine diphosphate, collagen, and arachidonic acid. After aspirin therapy, percent aggregation decreased similarly in both HIV-1-infected and control subjects to all platelet agonists tested except aggregation in response to arachidonic acid, which remained elevated in the HIV-1-infected group. HIV-1-infected subjects exhibited increased markers of T-cell activation (CD38 and HLA-DR) and monocyte activation (sCD14), which decreased after 1 week of aspirin therapy. Moreover, leukocyte responses to Toll-like receptor stimulation were enhanced after 1 week of aspirin therapy. In vitro studies showed that HIV-1 plasma could activate healthy platelets, which in turn activated monocytes, implicating a direct role for activated platelets in immune activation. CONCLUSIONS: Our data demonstrate that heightened platelet activation and immune activation in treated HIV-1 disease are attenuated by 1 week of aspirin therapy. Aspirin should be further studied for its antithrombotic and immunomodulatory benefits in treated HIV-1 disease.