Out With the Old and in With the New? Factors Involved in Migration of Older and Newer Generation Stereotactic Breast Biopsy Markers.

Objective: The purpose of this study was to investigate four commonly used stereotactic biopsy markers, two older and two newer generation, assessing percentage migration and factors influencing migration distance.

Methods: This was an IRB-approved retrospective review of upright stereotactic breast biopsies from May 2018 to May 2020 involving either older (Cork, Hourglass) or newer (Vision, X-shaped) generation markers. Markers were assessed for migration rate by two-sample Z-test and migration distance by analysis of variance.

A Simulation-Based Blended Curriculum for Short Peripheral Intravenous Catheter Insertion: An Industry-Practice Collaboration.

Despite peripheral intravenous catheter (PIVC) insertion being a commonly performed skill, practicing nurses may receive little substantive education, training, or opportunities to practice this skill at a competent level. This article describes a collaboration between private industry and a hospital to modify, implement, and evaluate a simulation-based blended PIVC insertion continuing education program for staff nurses. Included is an overview of the practical and theoretical rationale for the initial development of the curriculum to address an identified PIVC insertion education gap, the collaborative modification and implementation of the program, and an evaluation of the program.

Improving Nurses' Peripheral Intravenous Catheter Insertion Knowledge, Confidence, and Skills Using a Simulation-Based Blended Learning Program: A Randomized Trial.

Introduction: Peripheral intravenous catheter (PIVC) insertion is one of the most common invasive procedures performed in a hospital, but most nurses receive little formal training in this area. Blended PIVC insertion training programs that incorporate deliberate simulated practice have the potential to improve clinical practice and patient care.

Methods: The study was a randomized, wait-list control group with crossover using nurses on three medical/surgical units.

Development and Testing of an Instrument to Measure Short Peripheral Catheter Insertion Confidence.

The Peripheral Intravenous Insertion Confidence Assessment for short peripheral catheters is a 10-item, 5-point Likert scale, self-administered tool to measure a person's confidence in his or her personal intravenous insertion skills, including site selection and assessment, procedure, dressing, and documentation. Expert opinion validity was obtained from a panel of 3 infusion therapy leaders. Two-day test-retest reliability and internal consistency were determined using 22 practicing nurses.

Radical thiol-yne chemistry on diphenylacetylene: selective and quantitative addition enabling the synthesis of hyperbranched poly(vinyl sulfide)s.

A powerful variation of traditional radical thiol-yne reaction with diphenylacetylene (DPA)-based starting materials leading to the quantitative and selective formation of the corresponding vinyl sulfides is reported. A variety of different thiols are shown to undergo reaction with DPA and the influence of their structure on reactivity is studied. The results obtained from the model reactions are then used to guide the efficient synthesis of hyperbranched poly(vinyl sulfide) (hb-PVS) systems by employing a dithiol and a trialkyne in an A2 + B3 approach.

Reactive, multifunctional polymer films through thermal cross-linking of orthogonal click groups.

The ability to produce robust and functional cross-linked materials from soluble and processable organic polymers is dependent upon facile chemistries for both reinforcing the structure through cross-linking and for subsequent decoration with active functional groups. Generally, covalent cross-linking of polymeric assemblies is brought about by the application of heat or light to generate highly reactive groups from stable precursors placed along the chains that undergo coupling or grafting reactions. Typically, these strategies suffer from a general lack of control of the cross-linking chemistry as well as the fleeting nature of the reactive species that precludes secondary chemistry.

Multiple nanoscale templates by orthogonal degradation of a supramolecular block copolymer lithographic system.

An orthogonal approach to the creation of multiple nanoscale templates from a single supramolecular block copolymer system is presented. The enabling feature of this strategy is the design of block copolymers that incorporate independent degradation chemistries which permits each block copolymer to be addressed individually and sequentially. By blending a block copolymer containing H-bond donor groups and a UV-degradable domain with the complementary copolymer containing H-bond acceptor groups and an acid-cleavable segment, diverse and tunable nanoporous thin films with different pore sizes and array patterns can be obtained.