Jennifer W. McCallister

Asthma, the sex difference.

Purpose of review Asthma is a common chronic disease with significant clinical impact worldwide. Sex-related disparities in asthma epidemiology and morbidity exist but debate continues regarding the mechanisms for these differences. There is a need to review the recent findings for asthma care providers and to highlight areas in need of additional research. Recent findings Recent data illustrate striking sex-related differences in asthma epidemiology and disease expression. Studies show an increased incidence of asthma in women. Data demonstrate that asthmatic women have a poorer quality of life and increased utilization of healthcare compared to their male counterparts despite similar medical treatment and baseline pulmonary function. Research continues to explore hypotheses for these differences including the potential influences of the female sex hormones, altered perception of airflow obstruction, increased bronchial hyper-responsiveness, and medication compliance and technique. However, no single explanation has been able to fully explain the disparities. Summary Women are more likely to be diagnosed with asthma and suffer greater morbidity than men. The physiologic mechanisms for these differences are not well understood. Understanding sex-related differences in asthma and providing patients with education geared toward these disparities are important in establishing effective, individualized asthma management strategies for all patients.

Obesity and Acute Lung Injury

Acute lung injury (ALI) and the acute respiratory distress syndrome (ARDS) are common indications for ICU admission and mechanical ventilation. ALI/ARDS also consumes significant health care resources and is a common cause of death in ICU patients. Obesity produces changes in respiratory system physiology that could affect outcomes for ALI/ARDS patients and their response to treatment. Additionally, the biochemical alterations seen in obese patients, such as increased inflammation and altered metabolism, could affect the risk of developing ALI/ARDS in patients with another risk factor (eg, sepsis). The few studies that have examined the influence of obesity on the outcomes from ALI/ARDS are inconclusive. Furthermore, observed results could be biased by disparities in provided care.

Sex Differences in Asthma

Asthma is a common chronic pulmonary disease whose prevalence varies greatly with the sex and age of the patient. Research has shown that men and women may experience this disease differently, although these sex-related differences have not routinely translated into differences in clinical care for patients with asthma. This review explores some of the major differences in asthma between men and women and some of the main hypotheses developed to explain them.

The relationship between gastroesophageal reflux and asthma: an update

Asthma and gastroesophageal reflux disease (GERD) are both common conditions and, hence, they often coexist. However, asthmatics have been found to have a much greater prevalence of GERD symptoms than the general population. There remains debate regarding the underlying physiologic mechanism(s) of this relationship and whether treatment of GERD actually translates into improved asthma outcomes. Based on smaller trials with somewhat conflicting results regarding improved asthma control with treatment of GERD, current guidelines recommend a trial of GERD treatment for symptomatic asthmatics even without symptoms of GERD. However, recently a large multicenter trial demonstrated that the treatment of asymptomatic GERD with proton-pump inhibitors did not improve asthma control in terms of pulmonary function, rate of asthma exacerbations, asthma-related quality of life, or asthma symptom frequency. These data suggest empiric treatment of asymptomatic GERD in asthmatics is not a useful practice. This review article provides an overview of the epidemiology and pathophysiologic relationships between asthma and GERD as well as a summary of current data regarding links between treatment of GERD with asthma outcomes.

Effects of etomidate on vasopressor use in patients with sepsis or severe sepsis: A propensity-matched analysis☆ , ☆☆

PURPOSE The safety of single-bolus etomidate to facilitate intubation in septic patients is controversial due to its potential to suppress adrenal steroidogenesis. The purpose of this study was to evaluate the effects of etomidate on the development of shock when used as an induction agent to facilitate intubation in septic patients. METHODS A multicenter, retrospective, propensity-matched cohort study comparing patients with sepsis or severe sepsis who either received etomidate or did not receive etomidate for intubation was conducted. The primary outcome was the difference in the need for vasopressor support within 72 hours after intubation. Secondary outcomes included the use of multiple vasopressors, intensive care unit length of stay, and in-hospital mortality. RESULTS A total of 411 patients were analyzed. Eighty-three patients were matched by propensity score. There was no difference in the matched cohort in regards to vasopressor use within 72 hours of intubation (odds ratio, 0.95; 95% confidence interval, 0.52-1.76; P=.88). Furthermore, there were no significant differences observed with regard to secondary outcomes, including in-hospital mortality (P=.76). CONCLUSIONS The use of etomidate for intubation in septic patients did not increase vasopressor requirements within 72 hours after intubation.

Asthma in pregnancy: management strategies.

Purpose of review Asthma is one of the most prevalent chronic medical conditions to complicate pregnancy. With approximately one-third of women experiencing a worsening of control during the course of their pregnancy, identifying those at greatest risk has the potential to improve maternal and fetal outcomes for a large number of pregnancies. Similarly, active management strategies that prioritize asthma control in this vulnerable population can have a far-reaching impact. Recent findings Demographic characteristics and patient noncompliance place certain populations of pregnant women at increased risk of poor asthma control during pregnancy. In addition, undertreatment and disparities in care of acute exacerbations during pregnancy likely contribute. Targeted educational interventions and treatment algorithms using objective markers of disease activity have shown improved outcomes in asthma control. Summary Active management strategies which focus on identifying patient-specific risk factors, patient and provider education, and targeted treatment interventions can improve asthma care for women during pregnancy.

Practical strategies for effective lectures

Lecturing is an essential teaching skill for scientists and health care professionals in pulmonary, critical care, and sleep medicine. However, few medical or scientific educators have received training in contemporary techniques or technology for large audience presentation. Interactive lecturing outperforms traditional, passive-style lecturing in educational outcomes, and is being increasingly incorporated into large group presentations. Evidence-based techniques range from the very simple, such as inserting pauses for audience discussion, to more technologically advanced approaches such as electronic audience response systems. Alternative software platforms such as Prezi can overcome some of the visual limits that the ubiquitous PowerPoint imposes on complex scientific narratives, and newer technology formats can help foster the interactive learning environment. Regardless of the technology, adherence to good principles of instructional design, multimedia learning, visualization of quantitative data, and informational public speaking can improve any lecture. The storyline must be clear, logical, and simplified compared with how it might be prepared for scientific publication. Succinct outline and summary slides can provide a roadmap for the audience. Changes of pace, and summaries or other cognitive breaks inserted every 15-20 minutes can renew attention. Graphics that emphasize clear, digestible data graphs or images over tables, and simple, focused tables over text slides, are more readily absorbed. Text slides should minimize words, using simple fonts in colors that contrast to a plain background. Adherence to these well-established principles and addition of some new approaches and technologies will yield an engaging lecture worth attending.

Strategies for Success in Fellowship

Internal Medicine subspecialty fellows across the continuum of their training should be aware of key strategies to gain the most out of their fellowship training. More than during any other time in a physician’s training, subspecialty fellows are expected to be proactive, self-motivated, and self-directed in their own education and career development. Training programs provide unique opportunities to individualize a fellow’s experiences with the goal of preparing each fellow for a specific career path. Identifying the optimal career path for a given fellow requires self-reflection and good mentoring. The successful launching of a career at the end of fellowship requires planning and time to ensure that individualized career-focused objectives and resources are provided during fellowship. Understanding key strategies for successful fellowship training is essential and can increase the likelihood of a successful and rewarding career.

Multicenter Validation of a Customizable Scoring Tool for Selection of Trainees for a Residency or Fellowship Program. The EAST-IST Study

Rationale: Few data have been published regarding scoring tools for selection of postgraduate medical trainee candidates that have wide applicability. Objectives: The authors present a novel scoring tool developed to assist postgraduate programs in generating an institution‐specific rank list derived from selected elements of the U.S. Electronic Residency Application System (ERAS) application. Methods: The authors developed and validated an ERAS and interview day scoring tool at five pulmonary and critical care fellowship programs: the ERAS Application Scoring Tool‐Interview Scoring Tool. This scoring tool was then tested for intrarater correlation versus subjective rankings of ERAS applications. The process for development of the tool was performed at four other institutions, and it was performed alongside and compared with the “traditional” ranking methods at the five programs and compared with the submitted National Residency Match Program rank list. Results: The ERAS Application Scoring Tool correlated highly with subjective faculty rankings at the primary institution (average Spearmans r = 0.77). The ERAS Application Scoring Tool‐Interview Scoring Tool method correlated well with traditional ranking methodology at all five institutions (Spearmans r = 0.54, 0.65, 0.72, 0.77, and 0.84). Conclusions: This study validates a process for selecting and weighting components of the ERAS application and interview day to create a customizable, institution‐specific tool for ranking candidates to postgraduate medical education programs. This scoring system can be used in future studies to compare the outcomes of fellowship training.

Hydrofluoroalkane preparations of fluticasone propionate.

Fluticasone propionate is approved for the long-term maintenance therapy of persistent asthma of all severities, and its safety and efficacy has been well established in clinical trials and practice. With the need to phase out chlorofluorocarbons (CFCs) as propellants in pressurized metered-dose inhalers (pMDIs), hydrofluoroalkane (HFA) propellants have been introduced as a safer, environmentally friendly alternative. A HFA formulation of fluticasone propionate has been developed as a microgram-equivalent replacement for the traditional CFC pMDI. Clinical trials have demonstrated that the fluticasone propionate HFA pMDI is an acceptable clinical alternative for the CFC pMDI with similar safety and efficacy.