Characteristics and spatiotemporal changes in phenotypes and genotypes of extended-spectrum β-lactamases in Escherichia coli isolated from bloodstream infections in China from 2014 to 2021.

Objective: To examine the characteristics and spatiotemporal changes in the phenotypes and genotypes of extended-spectrum β-lactamases (ESBLs) in Escherichia coli strains isolated from bloodstream infections (BSIs) across China between 2014 and 2021.

Methods: 983 ESBL-positive E. coli strains were collected from BSIs in 66 hospitals across different geographic regions in China from 2014 to 2021.

The eSAH score: a simple practical predictive model for SAH mortality and outcomes.

We developed a simple quantifiable scoring system that predicts aneurysmal subarachnoid hemorrhage (aSAH) mortality, delayed cerebral ischemia (DCI), and modified Rankin scale (mRS) outcomes using readily available SAH admission data with SAH volume (SAHV) measured on computed tomography (CT). We retrospectively analyzed a cohort of 277 patients with aSAH admitted at our Comprehensive Stroke Center at Mayo Clinic in Jacksonville, Florida, between January 5, 2012, and February 24, 2022. We developed a mathematical radiographic model SAHV that measures basal cisternal SAH blood volume using a derivation of the ABC/2 ellipsoid formula (A = width/thickness, B = length, C = vertical extension) on noncontrast CT, which we previously demonstrated is comparable to pixel-based manual segmentation on noncontrast CT.

Safety, tolerability and pharmacokinetics of subcutaneous cefazolin as an alternative to intravenous administration.

Background: Subcutaneous (SC) administration of antibiotics is a practical alternative to IV administration. Cefazolin is widely used for skin and soft tissue infections and other complex infections by IV administration.

Methods: In this prospective, cross-over self-controlled study, a single dose of SC cefazolin was administered to 15 stable inpatients established on IV cefazolin as part of their management plan.