Internal Medicine Residents' Perception of Cancer Prognosis.

Cancer is the second leading cause of death in the USA. Many internal medicine physicians feel uncomfortable having to prognosticate; however, oncology patients often ask this of them. The inability to provide an accurate prognosis could lead a patient to make a treatment decision incongruent with their true wishes. We conducted this study to assess resident and attending physicians' knowledge of cancer prognosis and to establish the source of residents' knowledge. We conducted a prospective, cross-sectional study to assess internal medicine resident and attending physician knowledge of median survival for seven different oncologic case scenarios. Correct answers were defined by results of randomized, phase III trials. Residents were asked to identify the source(s) of information that most significantly influenced their choices. All residents and attending physicians affiliated with the University of Hawaii were invited to participate. A total of 67 of 85 surveys (78.8%) were completed, representing 41 residents and 26 attending physicians. Overall, the respondents correctly estimated median survival 42.6% of the time. The respondents underestimated more often than overestimated median survival (46.3% vs. 14.9%, p = 0.0001). Seventy-three percent of residents cited inpatient experience as influencing their oncologic knowledge. Internal medicine residents and attending physicians correctly estimate median survival of cancer patients less than 50% of the time and often underestimate survival. Inpatient rotations, where residents care for the oncologic patients experiencing significant complications of their cancer and treatment, may be giving them an unbalanced perspective on cancer prognosis.

Plasminogen Activator Inhibitor-1 Predicts Negative Alterations in Whole-Body Insulin Sensitivity in Chronic HIV Infection.

Plasminogen activator inhibitor type 1 (PAI-1), a key negative regulator of fibrinolysis, has been investigated to be one of the potential mechanisms of the development of impaired insulin sensitivity, insulin resistance, and diabetes mellitus. Because chronically stable HIV-infected individuals frequently develop abnormal glucose metabolism, including insulin resistance and diabetes mellitus, we postulated that PAI-1 could be one of the multifactorial pathogenic roles in the development of impaired insulin sensitivity and insulin resistance among chronic HIV-infected individuals. From our longitudinal cohort study, we selectively recruited chronically stable HIV-infected individuals without diagnosis of diabetes mellitus at baseline (N = 62) to analyze the correlation of baseline inflammatory cytokines, including PAI-1 and whole-body insulin sensitivity, with 2-year follow-up, as measured by Matsuda Index. We found a negative correlation between baseline PAI-1 and Matsuda Index (r = -0.435, p = .001) and a negative correlation between baseline PAI-1 and Matsuda Index at 2 years (r = -0.377, p = .005). In a linear regression model that included age, total body fat mass percentage, serum amyloid A, and family history of diabetes mellitus, PAI-1 still remained significantly associated with Matsuda Index at 2-year follow-up (ß = -.397, p = .002). Our longitudinal study suggests that PAI-1 is an independent predictor of impaired insulin sensitivity among chronic HIV-infected individuals.