Impact of genotype on clinical course in sickle cell disease and the utility of neutrophil-lymphocyte ratio: a ten-year single-institution experience.

BACKGROUND: Sickle cell disease (SCD) is a diverse group of blood disorders with significant global disease burden. Contemporary interest in the underlying inflammatory paradigm of SCD has emphasized the role of the neutrophil-lymphocyte ratio (NLR) as a prognostic inflammatory marker. METHODS: We retrospectively reviewed 268 hospitalized patients with SCDs of different genotypes (HbSS, HbSß0 thalassemia, HbSß+ thalassemia, and HbSC), totaling 3329 hospital admissions over a 10-year period. Patients were stratified into SS/Sß0 and Sß+/SC groups for statistical analysis of parameters collected at steady state and at hospital admission. RESULTS: At steady state, per unit increase of hemoglobin values was associated with reduced odds of ≥ 2 hospital admissions per year in SS/Sß0 and Sß+/SC groups; per unit increase in platelet count and white blood cell count was associated with increased odds only in the SS/Sß0 group. The NLR had no association in either group. During admission, a cutoff of NLR = 3.5 discerned infection with a sensitivity of 60% and specificity of 57%. Performance improved when excluding patients on outpatient hydroxyurea therapy (cutoff of NLR = 3.5; sensitivity of 68% and specificity of 64%). CONCLUSION: This study supports the utility of NLR as an accessible adjunctive clinical tool in SCD prognostication.

44-year-old man • elevated total cholesterol • chest pains • ketogenic diet • Dx?

► elevated total cholesterol ► chest pains ►ketogenic diet.

The Association Between Family Medicine Appointment Cancellations and Hospital Utilization in 2019 and 2020.

INTRODUCTION: The COVID-19 pandemic caused a disruption in the usual primary care services offered and received by patients. The objective of this study was to compare the impact of family medicine appointment cancellations on hospital utilization metrics both before and during the COVID-19 pandemic within a family medicine residency clinic. METHODS: This study is a retrospective chart review of cohorts of patients with a family medicine clinic cancellation who presented to the emergency department during a similar time period before and during the pandemic (March-May of 2019 vs March-May 2020). The patient population studied has multiple chronic diagnoses and prescriptions. Hospital admission, hospital readmission, and length of stay for hospitalizations during these periods were compared. The impacts of appointment cancellations on the emergency department presentation with subsequent inpatient admission, readmission, and length of stay were examined using generalized estimating equation (GEE) logistic or Poisson regression models to account for the lack of independence between patient outcomes. RESULTS: A total of 1878 patients were included in the final cohorts. Of these patients, 101 (5.7%) presented to the emergency department and/or hospital in both 2019 and 2020. An increased odds of readmission was associated with family medicine appointment cancellation regardless of year. The effects of appointment cancellations were not associated with admissions or length of stay between 2019 and 2020. CONCLUSION: Between the 2019 and 2020 cohorts, appointment cancellations were not associated with significant differences in likelihood of admission, readmission, or length of stay. A higher risk of readmission was associated with patients with a recent family medicine appointment cancellation.