Disparities in access to specialty care and emergency department use after hospital discharge to a skilled nursing facility.

BACKGROUND: Patterns in access to specialists among patients in skilled nursing facilities (SNFs) have not been previously described. OBJECTIVE: To measure access to outpatient specialty follow-up and subsequent emergency department (ED) visits by patient characteristics, including race/ethnicity and those who received specialty care during the hospitalization that preceded the SNF stay. DESIGN, SETTINGS, AND PARTICIPANTS: This retrospective cohort study used the minimum data set and 100% Medicare fee-for-service claims for beneficiaries admitted to an SNF between 2012 and 2014. Hospital stays for surgical procedures were excluded. MAIN OUTCOME AND MEASURES: The associations between ED visits, follow-up, and race/ethnicity were measured using logistic and linear regression, adjusting for patient demographic and clinical characteristics. RESULTS: The sample included 1,117,632 hospitalizations by Medicare beneficiaries ≥65 with a consult by a medical subspecialist followed by discharge to SNF. Of the sample, 85.4% were non-Hispanic White (NHW) and 14.6% were Black, indigenous, and people of color (BIPOC), according to Medicare beneficiary records. During the SNF stay, BIPOC patients had lower odds of specialty follow-up compared to NHW patients (odds ratio [OR]: 0.96, 95% confidence intervals [CI]: 0.94-0.99, p = .004). BIPOC patients had higher rates of ED visits compared to NHW patients (with follow-up: 24.1% vs. 23.4%, and without follow-up: 27.4% vs. 25.9%, p < .001). Lack of follow-up was associated with a 0.8 percentage point difference in ED visits between BIPOC and NHW patients (95% CI: 0.3-1.3, p = .003). CONCLUSIONS: There is a racial/ethnic disparity in subspecialty follow-up after hospital discharge to SNF that is associated with a higher rate of subsequent ED visits by BIPOC patients.

Association of Preoperative Pulse Pressure and Oxygen Delivery Index During Cardiopulmonary Bypass With Postoperative Acute Kidney Injury.

OBJECTIVE: To investigate if oxygen delivery index during cardiopulmonary bypass (DO2I) was more strongly associated with acute kidney injury (AKI), the higher the patient's preoperative pulse pressure (PP). DESIGN: Retrospective cohort of 1064 patients undergoing cardiac surgery. SETTING: Single academic healthcare center. PARTICIPANTS: Adult patients undergoing coronary artery bypass grafting, valve, aortic, or combined surgery requiring cardiopulmonary bypass. INTERVENTIONS: Hemoglobin, arterial oxygen saturation, and pump flow recorded no fewer than every 30 min were extracted from the patients' perfusion records, and DO2I was calculated. The AKI was assessed from the pre- and postoperative creatinine and urine output values using the Acute Kidney Injury Network criteria. The sample was stratified in 5 categories of progressively higher PP. The patient characteristics and intraoperative variables were evaluated in univariate analysis for a relationship with AKI. The significant risk factors from the univariate analysis then were evaluated in a multivariate analysis and assessed for logistic fit with respect to AKI. PRIMARY OUTCOME: The AKI assessed as a binary outcome. MEASUREMENTS AND MAIN RESULTS: Age, body surface area, DO2I, history of heart failure, and baseline creatinine were associated significantly with AKI, as was an interaction term between the PP category and DO2I (p = 0.0067). The higher the PP category, the stronger the observed association between DO2I and AKI, and the higher the variability in the predicted risk of AKI dependent on DO2I. CONCLUSIONS: A lower DO2I during cardiopulmonary bypass appeared more strongly associated with a higher likelihood of developing AKI, the higher the patient's preoperative pulse pressure.