T. Swan (2020) Adherence to guideline recommendations for human rabies immune globulin patient selection, dosing, timing, and anatomical site of administration in rabies postexposure prophylaxis,

No abstract

Background: Guidelines support area-under-the-curve (AUC) monitoring for vancomycin dosing which may lower overall doses and reduce acute kidney injury (AKI). Objective: The aim of this study was to compare incidence of AKI across 3 vancomycin dosing modalities: AUC-targeted Bayesian pharmacokinetic software, AUC-targeted empiric dosing nomogram, and trough-guided dosing using clinical pharmacists’ judgment. Methods: This retrospective study included adult patients with a pharmacy dosing consult who received ≥1 dose of vancomycin and ≥1 serum vancomycin level documented between January 1, 2018, and December 31, 2019. Patients with baseline serum creatinine ≥2 mg/dL, weight ≥100 kg, receiving renal replacement therapy, AKI prior to vancomycin therapy, or vancomycin ordered only for surgical prophylaxis were excluded. The primary analysis was incidence of AKI adjusted for baseline serum creatinine, age, and intensive care unit admission. A secondary outcome was adjusted incidence of an abnormal trough value (<10 or >20 μg/mL). Results: The study included 3459 encounters. Incidence of AKI was 21% for Bayesian software (n = 659), 22% for the nomogram (n = 303), and 32% for trough-guided dosing (n = 2497). Compared with trough-guided dosing, incidence of AKI was lower in the Bayesian (adjusted odds ratio [OR] = 0.72, 95% confidence interval [CI]: 0.58-0.89) and the nomogram (adjusted OR = 0.71, 95% CI: 0.53-0.95) groups. Compared with trough-guided dosing, abnormal trough values were less common in the Bayesian group (adjusted OR = 0.83, 95% CI: 0.69-0.98). Conclusion and Relevance: Study results suggest that use of AUC-guided Bayesian software reduces the incidence of AKI and abnormal trough values compared with trough-guided dosing.

Human 4-factor prothrombin complex concentrate (4F-PCC) may reduce blood loss during surgery. This case series described perioperative outcomes among 9 patients who refused standard allogeneic blood transfusion, underwent complex cardiac surgery with aortic involvement, and received intraoperative 4F-PCC. Additional intraoperative cointerventions included protamine (n = 9), aminocaproic acid (n = 8), fibrinogen concentrate (n = 6), desmopressin (n = 6), factor VIIa (n = 2), and tranexamic acid (n = 1). Outcomes included postoperative death (n = 1), major postoperative bleeding (n = 1), deep vein thrombosis (n = 2), and ischemic stroke (n = 1). When standard allogeneic blood transfusion is refused, viable hemostasis can be obtained using 4F-PCC during complex cardiac surgeries with a high risk of bleeding.