The low sensitivity of direct smears limit the utility of intraoperative gram stains for predicting culture-positivity in acute surgical settings.

The role of intraoperative Gram stains in acute surgery decision-making is unclear. Our retrospective chart review of microbiology results for specimens submitted by acute surgery attendings showed Gram stain performs with a sensitivity ranging from 18% to 65% compared to culture, depending on organism type, thus limiting its utility.

Take Your Best Shot: Which SARS-CoV-2 Vaccine Should I Get?

Background. Three vaccines against SARS-CoV-2 (severe acute respiratory syndrome coronavirus-2) have now received emergency use authorization by the US Food and Drug Administration. Patients may have the opportunity to make a choice about which vaccine they prefer to receive. Vaccine hesitancy is a hurdle to the development of widespread immunity, with many patients struggling to decide whether to get vaccinated at all. Objective. Develop a decision model exploring the question, "Should I get vaccinated with mRNA or adenovirus vector vaccine (AVV) if either is available now?"Design. Markov state transition model with lifetime time horizon. Data Sources. MEDLINE searches, bibliographies from relevant English-language articles. Setting. United States, ambulatory clinical setting. Participants. Previously uninfected, nonimmunized adults in the United States. Interventions. 1) Do Not Vaccinate, 2) Vaccination with mRNA Vaccine, 3) Vaccination with Adenovirus Vector Vaccine. Main Measures. Quality-adjusted life years (QALYs). Key Results. Base case-for a healthy 65-year-old patient, both vaccines yield virtually equivalent results (difference of 0.0028 QALYs). In sensitivity analyses, receiving the AVV is preferred if the short-term morbidity associated with each vaccine dose exceeds 1.8 days. Both vaccines afford an even greater benefit compared with Do Not Vaccinate if the pandemic is in a surge phase with a rising incidence of infection or if the current 7-day incidence is greater than the base case estimate of 105 cases per 100,000. Conclusions. Preferred vaccination strategies change under differing assumptions, but differences in outcomes are negligible. The best advice for patients is to get vaccinated against COVID-19 disease with whatever vaccine is available first. Providing mRNA vaccine to the remaining eligible US population would result in an aggregate gain of 3.92 million QALYs.