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Nonmedical factors and diagnostic certainty contribute to variation in clinical decision making, but the process by which this occurs remains unclear. We examine how physicians' interpretations of patient sex-gender affect diagnostic certainty and, in turn, decision making for coronary heart disease. Data are from a factorial experiment of 256 physicians who viewed 1 of 16 video vignettes with different patient-actors presenting the same symptoms of coronary heart disease. Physician participants completed a structured interview and provided a narrative about their decision-making processes. Quantitative analysis showed that diagnostic uncertainty reduces the likelihood that physicians will order tests and medications appropriate for an urgent cardiac condition in particular. Qualitative analysis revealed that a subset of physicians applied knowledge that women have "atypical symptoms" as a generalization, which engendered uncertainty for some. Findings are discussed in relation to social-psychological processes that underlie clinical decision making and the social framing of medical knowledge. (Contains 3 notes, 1 table and 1 figure.)

Background: Pain complaints are common, but clinicians are increasingly concerned about overuse of opioid pain medications. This may lead patients with actual pain to be stigmatized as “drug-seeking,” or attempting to obtain medications they do not require medically. We assessed whether patient requests for specific opioid pain medication would lead physicians to classify them as drug-seeking and change management decisions. Methods and findings: Mixed-methods analysis of interviews with 192 office-based primary care physicians after viewing video vignettes depicting patients presenting with back pain. For each presentation physicians were randomly assigned to see either an active request for a specific medication or a more general request for help with pain. The main outcome was assignment by the physician of “drug-seeking” as a potential diagnosis among patients presenting with back pain. Additional outcomes included other actions the physician would take and whether the physician would prescribe the medication requested. A potential diagnosis of drug-seeking behavior was included by 21% of physicians seeing a specific request for oxycodone vs. 3% for a general request for help with back pain(p<0.001). In multivariable models an active request was most strongly associated with a physician-assigned diagnosis of drug-seeking behavior(OR 8.10; 95% CI 2.11–31.15;p = 0.002); other major patient and physician characteristics, including gender and race, did not have strong associations with drug-seeking diagnosis. Physicians described short courses of opioid medications as a strategy for managing patients with pain while avoiding opioid overuse. Conclusions: When patients make a specific request for opioid pain medication, physicians are far more likely to suspect that they are drug-seeking. Physician suspicion of drug-seeking behavior did not vary by patient characteristics, including gender and race. The strategies used to assess patients further varied widely. These findings indicate a need for the development of better clinical tools to support the evaluation and management of patients presenting with pain. [ABSTRACT FROM AUTHOR]

Background In children with single right ventricular (RV) anomalies, changes in RV size and function may be influenced by shunt type chosen at the time of the Norwood procedure. Objectives The study sought to identify shunt-related differences in echocardiographic findings at 14 months and ≤6 months pre-Fontan in survivors of the Norwood procedure. Methods We compared 2-dimensional and Doppler echocardiographic indices of RV size and function, neo-aortic and tricuspid valve annulus dimensions and function, and aortic size and patency at 14.1 ± 1.2 months and 33.6 ± 9.6 months in subjects randomized to a Norwood procedure using either the modified Blalock-Taussig shunt (MBTS) or right ventricle to pulmonary artery shunt (RVPAS). Results Acceptable echocardiograms were available at both time points in 240 subjects (114 MBTS, 126 RVPAS). At 14 months, all indices were similar between shunt groups. From the 14-month to pre-Fontan echocardiogram, the MBTS group had stable indexed RV volumes and ejection fraction, while the RVPAS group had increased RV end-systolic volume (p = 0.004) and decreased right ventricular ejection fraction (RVEF) (p = 0.004). From 14 months to pre-Fontan, the treatment groups were similar with respect to decline in indexed neo-aortic valve area, >mild neo-aortic valve regurgitation (<5% at each time), indexed tricuspid valve area, and ≥moderate tricuspid valve regurgitation (<20% at each time). Conclusions Initial Norwood shunt type influences pre-Fontan RV remodeling during the second and third years of life in survivors with single RV anomalies, with greater RVEF deterioration after RVPAS. Encouragingly, other indices of RV function remain stable before Fontan regardless of shunt type. (Comparison of Two Types of Shunts in Infants with Single Ventricle Defect Undergoing Staged Reconstruction—Pediatric Heart Network; NCT00115934 ) [ABSTRACT FROM AUTHOR]

Aim: To assess the feasibility of collecting electronic pain data from thalassaemia patients, based on its acceptability and convenience to the participants and study team. Methods: Participants in the Thalassemia Clinical Research Network Assessment of Pain Survey Study completed the Brief Pain Inventory (BPI) quarterly by paper or phone interview. Participants in a substudy completed the BPI Short Form daily over three non-consecutive transfusion cycles through an automated telephone system. Results: The consent rate for the main study was 93%, with 93% retention. The substudy had 75% retention, with more than 75% of scheduled calls completed. Regular monitoring of enrolment, missed calls, data quality, and the performance of the subcontractor for the automated system was crucial to fulfillment of the study goals. Conclusions: Use of electronic data collection for patient-reported outcomes was convenient for both patients and study personnel but required human interactions beyond the automated system to maximise data quantity and quality. [ABSTRACT FROM AUTHOR]

The authors develop a conceptual framework regarding how information technology (IT) can alter within-physician disparities, and they empirically test some of its implications in the context of coronary heart disease. Using a random experiment on 256 primary care physicians, the authors analyze the relationships between three IT functions (feedback and two types of clinical decision support) and five process-of-care measures. Endogeneity is addressed by eliminating unobserved patient characteristics with vignettes and by proxying for omitted physician characteristics. The results indicate that IT has no effects on physicians' diagnostic certainty and treatment of vignette patients overall. The authors find that treatment and certainty differ by patient age, gender, and race. Consistent with the framework, IT's effects on these disparities are complex. Feedback eliminated the gender disparities, but the relationships differed for other IT functions and process measures. Current policies to reduce disparities and increase IT adoption may be in discord. [ABSTRACT FROM AUTHOR]

Nonselective inhibition of nitric oxide (NO) with NO synthase antagonists decreases hypotension but worsens outcome clinically. We investigated whether iron (III) complex of diethylenetriaminepentaacetic acid [DTPA Fe(III)], a scavenger of NO as well as other oxidant mediators, has similar divergent effects in E. coli challenged rats. Methods: Animals with venous and arterial catheters and challenged with intrabronchial or intravenous E. coli were randomized to treatment with DTPA Fe(III) in doses from 3 to 800 mg/kg or placebo. Mean blood pressure (MBP) was measured in all animals and plasma NO, cytokines, and blood and lung leukocyte and bacteria counts in animals administered intrabronchial E. coli and DTPA Fe(III) 50 mg/kg or placebo. Animals received antibiotics and were observed 168 h. Results: Independent of drug regimen or infection site, compared to placebo, DTPA Fe(III) increased MBP although this was greater with high vs. lower doses. Despite increased MBP, DTPA Fe(III) worsened the hazards ratio of survival . At 6 and 24 h DTPA Fe(III) decreased NO but not significantly and decreased four cytokines (tumor necrosis factor-?, interleukins 1 and 10, and macrophage inflammatory protein 3?) and lung lavage neutrophils. From 6 to 24 h DTPA Fe(III) increased blood bacteria. Conclusions: DTPA Fe(III) while increasing blood pressure has the potential to worsen outcome in sepsis. Further preclinical testing is required before this agent is applied clinically. [ABSTRACT FROM AUTHOR]

Background: The recent publication of clinical trial results has led to a dramatic shift in the evidence about postmenopausal hormone therapy. Objective: To examine whether the publication of clinical trial results, specifically the Heart and Estrogen /progestin Replacement Study (HERS) in 1998 and the Women's Health Initiative (WHI) in 2002, has influenced the use of hormone therapy among post-menopausal women. Design: Observational cohort (1997 to 2003). Setting: San Francisco Mammography Registry, San Francisco, California. Participants: Postmenopausal women between the ages of 50 and 74 years without a personal history of breast cancer who underwent mammography (151 862 mammograms). Measurements: Self-reported current use of hormone therapy. Results: Among menopausal women who had mammography, it was estimated that 41% were currently using hormone therapy in 1997. Before the publication of HERS, the use of hormone therapy was increasing at a rate of 1% (95% CI, 0% to 2%) per quarter. After the publication of HERS, use decreased by 1% (CI,− 3% to 0%) per quarter. In contrast, the publication of the WHI in 2002 was associated with a more substantial decline in the use of hormone therapy of 18% (CI,− 21% to− 16%) per quarter. Similar associations were observed for most subgroups of women, including women older than 65 years of age; women with a previous hysterectomy; and women who described their race or ethnicity as white, African American, Latina, Chinese, or Filipina. Conclusions: The release of the HERS data was temporally associated with a modest decline in the use of hormone therapy. In contrast, the release of the principal findings from the WHI was associated with a more substantial decline in use by postmenopausal women. The reason for the differences in decline may relate to the fact that the WHI results were widely publicized or were more applicable to most postmenopausal women because the WHI study was performed in healthy women. [ABSTRACT FROM AUTHOR]

Presents a study which investigated whether decreases in circulating polymorphonuclear neutrophils during lethal Escherichia coli sepsis in canines are related to insufficient host granulocyte colony-stimulating factor. Methodology; Results and discussion.

Background and Methods: The authors designed and delivered an innovative Web course on cognitive behavioral therapy (CBT), a specific empirically based treatment, to a diverse group of addiction counselors and supervisors in 54 addiction units across the country, and conducted a randomized controlled trial of its effectiveness with 127 counselors. The primary focus of the trial was to assess "adequate adherence to CBT practice" after training as judged by raters blinded to training condition who listened to audiotapes of actual client sessions. Counselors who passed were judged to satisfy 2 criteria: (a) low pass or greater on at least 1 of 3 "CBT-generic skills" assessing session structure; and (b) low pass or greater on at least 1 of 3 "CBT-specific skills" related to use of functional analysis, cognitive skills practice, or behavioral skills practice., Results: Although the counselors' use of CBT skills in sessions increased after Web course training, it was not statistically significant and not larger than the gain of control-group counselors trained with a written CBT manual.

Aim: To assess the feasibility of collecting electronic pain data from thalassaemia patients, based on its acceptability and convenience to the participants and study team., Methods: Participants in the Thalassemia Clinical Research Network Assessment of Pain Survey Study completed the Brief Pain Inventory (BPI) quarterly by paper or phone interview. Participants in a substudy completed the BPI Short Form daily over three non-consecutive transfusion cycles through an automated telephone system., Results: The consent rate for the main study was 93%, with 93% retention. The substudy had 75% retention, with more than 75% of scheduled calls completed. Regular monitoring of enrollment, missed calls, data quality, and the performance of the subcontractor for the automated system was crucial to fulfillment of the study goals., Conclusions: Use of electronic data collection for patient-reported outcomes was convenient for both patients and study personnel but required human interactions beyond the automated system to maximise data quantity and quality.

This article presents data from a validation sample of 390 premenopausal women clinically diagnosed with hypoactive sexual desire disorder (HSDD) enrolled in the HSDD Registry for Women. Participants completed validated measures of sexual distress (e.g., Female Sexual Distress Scale Revised, Question 13) and sexual function including desire (e.g., Female Sexual Function Index). Results showed that lower levels of desire in these women were associated with diminished sexual satisfaction, increased sexually related distress, and fatigue or stress in the women's lives. In addition, the level of distress related to sexual desire decreased with age. The authors conclude that even among women with clinically diagnosed HSDD, the level of sexually related distress varies with situational factors, such as stress and fatigue.

Objective: To investigate treatment seeking and utilization of women diagnosed with hypoactive sexual desire disorder (HSDD) in the clinical setting., Methods: We used interim baseline data from the ongoing HSDD Registry for Women (n = 724, enrolled at 27 clinical sites across the United States in 2008-2009). The recent diagnosis of generalized, acquired HSDD was confirmed by clinician's administration of the validated diagnostic Decreased Sexual Desire Screener. Treatment-seeking behavior was categorized as formal (discussion with a healthcare provider or use of off-label prescription treatment for HSDD) or informal/none (over-the-counter products, anonymous media, or no help seeking)., Results: Over half (n = 386, 53%) of these women with clinically diagnosed HSDD had not sought formal healthcare for their decreased sexual desire problem. Among formal healthcare seekers, 36% remained untreated, whereas 64% received some form of treatment. The most common treatments reported were nonprescription lubricants or arousal creams (36%) and off-label prescription medications (20%). Women were more likely to have sought formal help if they were married/cohabiting, were postmenopausal, had private health insurance, had > 5 current prescription medications, had depression symptoms, had a longer duration of sexual desire problems, or reported that the partner relationship or sense of femininity/sexual self was threatened by HSDD., Conclusions: In these women with HSDD, less than half had sought healthcare, but of those who had sought healthcare, almost two thirds received some form of treatment. Regardless of treatment-seeking behavior, most women had a strong desire to "feel like a normal person again" regarding sexuality, which was the most common motivating factor for treatment seeking.

We investigated nitric oxide (NO) as a possible cause of the cardiac dysfunction associated with high, lethal doses of tumor necrosis factor-alpha (TNF-alpha) in dogs. Eighty-seven awake, 2-year-old (10-12 kg), purpose-bred beagles were randomized to receive an infusion of saline or N-monomethyl-L-arginine (L-NMMA), a nonselective NO synthase (NOS) inhibitor, as a 40 mg kg bolus followed by a 40 mg kg(-1) h(-1) infusion for 3 to 6 h 3 h before (prophylactic) or 3 h after (therapeutic) challenge with TNF-alpha (60 microg kg(-1)) or vehicle. Serial radionuclide-heart scans and thermodilution pulmonary artery catheter hemodynamic measurements were performed. The effects of prophylactic L-NMMA on TNF-alpha-induced cardiac dysfunction as measured by decreases in mean left ventricular (LV) ejection fraction and downward and rightward shifts of LV function plots (peak systolic pressure versus end systolic volume index and LV stroke work index versus end diastolic volume index) were significantly different comparing early (3-6 h) and delayed (24 h) time points (P = 0.02). Prophylactic L-NMMA therapy did not appear to fully prevent early (3-6 h) TNF-alpha-induced cardiac dysfunction, but at 24 h, complete protection was seen. Therapeutic L-NMMA did not appear to fully protect the heart from TNF-alpha-induced early or delayed cardiac dysfunction (P = NS). Similarly, L-NMMA given prophylactically, but not therapeutically, blocked TNF-alpha-induced increases in exhaled NO flow rates and plasma nitrite and nitrate concentrations (both P = 0.02). These data suggest that TNF-alpha initiates two phases of cardiac injury: an early (3-6 h) phase that may be partially NO independent and a delayed (24 h) phase that is NO dependent. The delayed, more persistent dysfunction can be completely blocked by high doses of a nonselective NOS inhibitor administered before TNF-alpha.