Impact of Protein-Losing Enteropathy on Inflammatory Biomarkers and Vascular Dysfunction in Fontan Circulation.

Fontan palliation has improved survival for single ventricle patients, but long-term complications persist including cardiovascular dysfunction, neurohormonal abnormalities, and protein-losing enteropathy (PLE). Although chronic inflammation contributes to morbidity, an association between inflammation and vascular dysfunction has not been studied. We assessed inflammation and vascular function in 31 Fontan-palliated patients (52% male, median age 14.3 years), including 10 PLE+. Fontan circulation was associated with altered inflammatory cytokines (TNF-α: mean 2.5 ± 1.4 vs. 0.7 ± 0.2 pg/ml, p < 0.0001; sTNFR2: 371 ± 108 vs. 2694 ± 884 pg/ml, p < 0.0001) and vascular dysfunction [log-transformed reactive hyperemia index (lnRHI) 0.28 ± 0.19 vs. 0.47 ± 0.26, p < 0.01; augmentation index (AI) -2.9 ± 13.8 vs. -16.3 ± 12.0, p = 0.001; circulating endothelial progenitor cells (cEPCs) 5.0 ± 8.1 vs. 22.8 ± 15.9, p = 0.0002)]. Furthermore, PLE+ patients showed greater inflammation (IFN-γ 6.3 ± 2.2 vs. 11.5 ± 7.9 pg/ml, p = 0.01; sTNFR1: 1181 ± 420 vs. 771 ± 350 pg/ml, p = 0.01) and decreased arterial compliance (AI: 5.4 ± 17.1 vs. -6.8 ± 10.2, p = 0.02) than PLE- patients. Circulating EPCs, but not inflammatory cytokines, were inversely associated with arterial stiffness in Fontan patients. In conclusion, chronic inflammation and vascular dysfunction are observed after Fontan operation, with greater inflammation and arterial stiffness in Fontan patients with active PLE. However, there is no clear association between inflammatory cytokines and vascular dysfunction, suggesting these pathophysiologic processes are not mechanistically linked.

The economics of squamous cell carcinoma of the head and neck.

PURPOSE OF REVIEW: The current review presents a brief overview of the recent literature on the costs of squamous cell carcinoma of the head and neck (SCCHN), one of the most common forms of cancer. SCCHN is a relatively deadly disease. Approximately 50% of patients survive to 5 years, and surgery and chemoradiotherapy can leave survivors with pain, disfigurement, and disability that further add to the burden of the disease. RECENT FINDINGS: Earlier diagnosis of SCCHN increases the likelihood of treating with a single modality, lowers the risk of mortality, decreases medical expenditures, and improves patients' quality of life. Unfortunately, more than one-half of new cases of oral cancer are diagnosed at an advanced stage. Patients with SCCHN have been shown to use significantly more healthcare resources than similar patients without SCCHN, with resource use varying by cancer stage. SUMMARY: Although there have been a number of treatment innovations for SCCHN in the past 5 years, the lack of economic data complicates the task of evaluating these new interventions. In this time of mounting concerns over healthcare costs, more emphasis on economic data is clearly warranted.

Perceived stigma and depression among caregivers of patients with bipolar disorder.

This study investigates the associations between perceived stigma, depressive symptoms and coping among caregivers of people with bipolar disorder. Caregivers of 500 people with DSM-IV bipolar disorder responded to measures of these constructs at study entry. Patients' clinical and functional status were evaluated within 30 days of the caregiver assessment. Perceived stigma was positively associated with caregiver depressive symptoms, controlling for patient status and socio-demographic factors. Social support and avoidance coping accounted for 63% of the relationship between caregiver stigma and depression. Results suggest that caregivers' perceptions of stigma may negatively affect their mental health by reducing their coping effectiveness.