Risk of serious bacterial infections in pediatric patients with hyperpyrexia.

Objectives: Hyperpyrexia has been associated with a greater prevalence of bacterial infections in the pediatric population, which prior to routine childhood vaccinations, has led to invasive testing and empiric antibiotic use for urinary tract infections, bacterial pneumonia, bacteremia, and bacterial meningitis. Since the implementation of routine childhood vaccinations, the prevalence of serious bacterial infections (SBIs) has declined. This study aims to determine if there is an association between hyperpyrexia and serious bacterial infections in well-appearing febrile pediatric patients presenting to the emergency department (ED). Methods: This is a cross-sectional study conducted between January 1, 2019, and December 31, 2019, at a single urban tertiary care pediatric ED. Patients were included if they were between 61 days and ≤18 years old presenting with a chief complaint of fever. Patients were excluded if they received antibiotics within 3 days of presentation, underwent surgical procedures within 2 weeks of presentation, had an ED visit for febrile illness within 2 weeks of study visit, were transferred from another institution, or were ill appearing. Prevalence of SBI was described and compared by presence of hyperpyrexia, age group, chronic medical condition, gender, and vaccination status. Logistic regression was used to analyze the association between SBIs and hyperpyrexia. Results: Of the 3862 charts reviewed, 2565 patients were included. The prevalence of SBI was 5.6%. A total of 413 patients presented with hyperpyrexia. Of the patients with hyperpyrexia, 31 (7.5%) had a serious bacterial infection. Hyperpyrexia was not significantly associated with SBIs in our logistic regression models (adjusted Odds Ratio 1.40, 95% confidence interval 0.92-2.12). Conclusions: Serious bacterial infections were uncommon in our population. There is no statistically significant association between hyperpyrexia and SBIs in well-appearing pediatric patients presenting to the ED with fever. The lack of a statistically significant association between hyperpyrexia and SBIs argues that clinicians should be cautious using hyperpyrexia as an independent risk factor for SBIs. More research is needed to identify independent and grouped SBI risk factors in well-appearing pediatric patients presenting to the ED.

The association between abortion restrictions and patient-centered care for early pregnancy loss at US obstetrics-gynecology residency programs.

BACKGROUND: Early pregnancy loss is a common medical problem, and the recommended treatments overlap with those used for induced abortions. The American College of Obstetricians and Gynecologists recommends the incorporation of clinical and patient factors when applying conservative published imaging guidelines to determine the timing of intervention for early pregnancy loss. However, in places where abortion is heavily regulated, clinicians who manage early pregnancy loss may cautiously rely on the strictest criteria to differentiate between early pregnancy loss and a potentially viable pregnancy. The American College of Obstetricians and Gynecologists also notes that specific treatment modalities that are frequently used to induce abortion, including the use of mifepristone in medical therapy and surgical aspiration in an office setting, are cost-effective and beneficial for patients with early pregnancy loss. OBJECTIVE: This study aimed to determine how US-based obstetrics and gynecology residency training institutions adhere to the American College of Obstetricians and Gynecologists recommendations for early pregnancy loss management, including the timing and types of interventions, and to evaluate the relationship with institutional and state abortion restrictions. STUDY DESIGN: From November 2021 to January 2022, we conducted a cross-sectional study of all 296 US-based obstetrics and gynecology residency programs by emailing them and requesting that a faculty member complete a survey about early pregnancy loss practices at their institution. We asked about location of diagnosis, use of imaging guidelines before offering intervention, treatment options available at their institution, and program and personal characteristics. We used chi-square tests and logistic regressions to compare the availability of early pregnancy loss care based on institutional indication-based abortion restrictions and state legislative hostility to abortion care. RESULTS: Of the 149 programs that responded (50.3% response rate), 74 (49.7%) reported that they did not offer any intervention for suspected early pregnancy loss unless rigid imaging criteria were met, whereas the remaining 75 (50.3%) programs reported that they incorporated imaging guidelines with other factors. In an unadjusted analysis, programs were less likely to incorporate other factors with imaging criteria if they were in a state with legislative policies that were hostile toward abortion (33% vs 79%; P<.001) or if the institution restricted abortion by indication (27% vs 88%; P<.001). Mifepristone was used less often in programs located in hostile states (32% vs 75%; P<.001) or in institutions with abortion restrictions (25% vs 86%; P<.001). Similarly, office-based suction aspiration use was lower in hostile states (48% vs 68%; P=.014) and in institutions with restrictions (40% vs 81%; P<.001). After controlling for program characteristics, including state policies and affiliation with family planning training programs or religious entities, institutional abortion restrictions were the only significant predictor of rigid reliance on imaging guidelines (odds ratio, 12.3; 95% confidence interval, 3.2-47.9). CONCLUSION: In training institutions that restrict access to induced abortion based on indication for care, residency programs are less likely to holistically incorporate clinical evidence and patient priorities in determining when to intervene in early pregnancy loss as recommended by the American College of Obstetricians and Gynecologists. Programs in restrictive institutional and state environments are also less likely to offer the full range of early pregnancy loss treatment options. With state abortion bans proliferating nationwide, evidence-based education and patient-centered care for early pregnancy loss may also be hindered.

Synthesis of Bench-Stable N-Quaternized Ketene N,O-Acetals and Preliminary Evaluation as Reagents in Organic Synthesis.

N-Quaternized ketene N,O-acetals are typically an unstable, transient class of compounds most commonly observed as reactive intermediates. In this report, we describe a general synthetic approach to a variety of bench-stable N-quaternized ketene N,O-acetals via treatment of pyridine or aniline bases with acetylenic ethers and an appropriate Brønsted or Lewis acid (triflic acid, triflimide, or scandium(III) triflate). The resulting pyridinium and anilinium salts can be used as reagents or synthetic intermediates in multiple reaction types. For example, N-(1-ethoxyvinyl)pyridinium or anilinium salts can thermally release highly reactive O-ethyl ketenium ions for use in acid catalyst-free electrophilic aromatic substitutions. N-(1-Ethoxyvinyl)-2-halopyridinium salts can be employed in peptide couplings as a derivative of Mukaiyama reagents or react with amines in nucleophilic aromatic substitutions under mild conditions. These preliminary reactions illustrate the broad potential of these currently understudied compounds in organic synthesis.