Chest Pain Evaluation: Diagnostic Testing

Chest pain/discomfort (CP) is a common symptom and can be a diagnostic dilemma for many clinicians. The misdiagnosis of an acute or progressive chronic cardiac etiology may carry a significant risk of morbidity and mortality. This review summarizes the different options and modalities for establishing the diagnosis and severity of coronary artery disease. An effective test selection algorithm should be individually tailored to each patient to maximize diagnostic accuracy in a timely fashion, determine short- and long-term prognosis, and permit implementation of evidence-based treatments in a cost-effective manner. Through collaboration, a decision algorithm was developed (www.chowmd.ca/cadtesting) that could be adopted widely into clinical practice.

Development and pretesting of "Becoming Breastfeeding Friendly": Empowering governments for global scaling up of breastfeeding programmes

Scaling up breastfeeding programmes has not been highly prioritized despite overwhelming evidence that breastfeeding benefits the health of mothers and children. Lack of evidence-based tools for scaling up may deter countries from prioritizing breastfeeding. To fill this gap, Becoming Breastfeeding Friendly (BBF) was developed to guide countries in effectively scaling up programmes to protect, promote, and support breastfeeding. BBF includes an evidence-based toolbox that consists of a BBF Index, case studies, and a 5-meeting process. These three interrelated components enable countries to assess their breastfeeding scaling up environment, identify gaps, propose policy recommendations, develop a scaling up plan, and track progress. The toolbox was developed based on current evidence and expert guidance from a Technical Advisory Group, which was composed of global breastfeeding and metric experts with experience in the scaling up of health and nutrition programmes in low-, middle-, and high-income countries. The BBF toolbox required a step-by-step iterative approach to describe and systematize each component, thus an operational manual was developed. The BBF toolbox and BBF operational manual underwent intensive pretesting in two countries, Ghana and Mexico, resulting in the modification of each component plus the operational manual. Pretesting continues in six additional countries demonstrating that BBF is a robust and dynamic multi-sectoral process that, with relatively minor adaptations, can be successfully implemented in countries across world regions.

Becoming Breastfeeding Friendly Index: Development and application for scaling-up breastfeeding programmes globally

Global efforts to further improve exclusive breastfeeding rates have not been successful, in part because effective scaling-up frameworks and roadmaps have not been developed. The Becoming Breastfeeding Friendly (BBF) toolbox includes an evidence-based index, the BBF Index (BBFI), to guide the development and tracking of large scale, well-coordinated, multisector national breastfeeding promotion programmes. This paper describes the development of the BBFI, which is grounded in the Breastfeeding Gear Model complex adaptive systems framework. The BBFI was developed by the BBF Steering Committee in collaboration with a high-level Technical Advisory Group following the Delphi consensus methodology. Key benchmarks and definitions were informed by evidence-based health, nutrition, and newborn survival initiatives identified from the academic and grey literature. The BBFI consists of 8 gears (54 benchmarks): Advocacy (4); Political Will (3); Legislation and Policies (10); Funding and Resources (4); Training and Program Delivery (17); Promotion (3); Research and Evaluation (10); and Coordination, Goals, and Monitoring (3). Scores are generated for 8 gear scores plus a total country score to gauge the scaling-up enabling environment. The BBFI provides an evidence-based index to assist countries in (a) assessing their readiness to scale up breastfeeding programmes and (b) tracking scaling-up progress.

The effects of nicotine and nicotine withdrawal on taste reactivity

The effect of nicotine pretreatment on the palatability of flavored solutions was assessed using the taste reactivity test. In Experiment 1, low doses of nicotine [0.2-0.4 mg/kg, subcutaneously (s.c.)] suppressed the aversive taste properties of quinine and quinine-sucrose mixture and enhanced the hedonic taste properties of sucrose (0.4 mg/kg, s.c.) in rats that were nicotine naive. In Experiment 2, rats were chronically preexposed to nicotine or saline over a period of 21 pretreatment days. Tolerance developed to the ability of nicotine to enhance the palatability of sucrose. Furthermore, rats that were chronically preexposed to nicotine displayed enhanced hedonic evaluation of sucrose 24 h after nicotine was withdrawn. These results confirm human self-reports that withdrawal from nicotine dependency enhances the palatability of sweet-tasting foods.