Coronary Artery Aneurysm in Kawasaki Disease: Coronary CT Angiography through the Lens of Pathophysiology and Differential Diagnosis

Kawasaki disease (KD) is an inflammatory autoimmune vasculitis affecting the coronary arteries of very young patients, which can result in coronary artery aneurysms (CAAs) with lifelong manifestations. Accurate identification and assessment of CAAs in the acute phase and sequentially during the chronic phase of KD is fundamental to the treatment plan for these patients. The differential diagnosis of CAA includes atherosclerosis, other vasculitic processes, connective tissue disorders, fistulas, mycotic aneurysms, and procedural sequelae. Understanding of the initial pathophysiology and evolutionary arterial changes is important to interpretation of imaging findings. There are multiple applicable imaging modalities, each with its own strengths, limitations, and role at various stages of the disease process. Coronary CT angiography is useful for evaluation of CAAs as it provides assessment of the entire coronary tree, CAA size, structure, wall, and lumen characteristics and visualization of other cardiothoracic vasculature. Knowledge of the natural history of KD, the spectrum of other conditions that can cause CAA, and the strengths and limitations of cardiovascular imaging are all important factors in imaging decisions and interpretation. Keywords: Pediatrics, Coronary Arteries, Angiography, Cardiac © RSNA, 2021.

Identification of Racial Inequities in Access to Specialized Inpatient Heart Failure Care at an Academic Medical Center

BACKGROUND

Racial inequities for patients with heart failure (HF) have been widely documented. HF patients who receive cardiology care during a hospital admission have better outcomes. It is unknown whether there are differences in admission to a cardiology or general medicine service by race. This study examined the relationship between race and admission service, and its effect on 30-day readmission and mortality Methods: We performed a retrospective cohort study from September 2008 to November 2017 at a single large urban academic referral center of all patients self-referred to the emergency department and admitted to either the cardiology or general medicine service with a principal diagnosis of HF, who self-identified as white, black, or Latinx. We used multivariable generalized estimating equation models to assess the relationship between race and admission to the cardiology service. We used Cox regression to assess the association between race, admission service, and 30-day readmission and mortality.

RESULTS

Among 1967 unique patients (66.7% white, 23.6% black, and 9.7% Latinx), black and Latinx patients had lower rates of admission to the cardiology service than white patients (adjusted rate ratio, 0.91; 95% CI, 0.84-0.98, for black; adjusted rate ratio, 0.83; 95% CI, 0.72-0.97 for Latinx). Female sex and age >75 years were also independently associated with lower rates of admission to the cardiology service. Admission to the cardiology service was independently associated with decreased readmission within 30 days, independent of race.

CONCLUSIONS

Black and Latinx patients were less likely to be admitted to cardiology for HF care. This inequity may, in part, drive racial inequities in HF outcomes.

Educating medical students about military health: Perspectives from a multidisciplinary lecture initiative

BACKGROUND

Medical student education on military health topics is critical in ensuring optimal future care for military service members and their families.

METHODS

Keck School of Medicine of the University of Southern California (Keck SOM) students were invited to participate in an anonymous, voluntary, online survey ("Pre") rating their level of interest, awareness, exposure and comfort with military health issues on a 5-point Likert scale. A student-organized program of four voluntary lectures discussing military health-related topics was then implemented. Students were invited to re-take the survey ("Post") and also indicate which, if any, lectures they had attended.

RESULTS

230 students completed the "Pre" survey. A statistically significant deviation in responses was observed in all four questions, showing high interest (mean: 3.19 ± 1.20, P = 0.002), low awareness (mean: 2.52 ± 1.15, P < 0.001), low comfort (mean: 2.66 ± 1.11, P < 0.001), and low exposure (mean: 1.80 ± 0.95, P < 0.001) to military health issues. 132 students completed the "Post" survey, including 37 lecture attendees and 95 non-attendees. A statistically significant difference in the level of interest (P < 0.05) and exposure (P < 0.05) was observed between these groups.

DISCUSSION

Medical schools that lack military health curricula may underprepare students to care for military-affiliated patients. Student-led programs can help introduce this topic before formalized curricula are instituted.