A Qualitative Study of the Work Systems and Culture Around End-of-Day Intraoperative Anesthesia Handoffs in a Tertiary Care Center.

Background: Intraoperative handoffs have been implicated as a contributing factor in many perioperative adverse events. Despite conflicting data around their impact on perioperative outcomes, they remain a vulnerable point in the perioperative system with significant attention focused on improving them. This study aimed to understand the processes in place surrounding the point of information transfer in intraoperative handoffs.

Factors Associated With Prescription Opioid Abuse and Dependence Among Those Reporting Prescription Opioid Misuse: A Retrospective Cross-Sectional Study.

Background: Prescription opioid misuse is an ongoing epidemic in the United States. Though the number of people misusing prescription opioids is declining, the prevalence of abuse and dependence remains stable. This highlights the need to identify and intervene in factors leading to the escalation of prescription opioid misuse.

Factors associated with heroin use among those reporting -prescription opioid misuse: Results from a nationally -representative sample.

Objective: The present investigation aims to identify characteristics associated with heroin use among those reporting prescription opioid misuse from a nationally representative sample, and how these characteristics vary by urbanicity.

Design: A cross-sectional analysis.

Setting: Pooled 2015-2018 data from the National Survey on Drug Use and Health (NSDUH), the leading source for nationally representative substance use, mental health, and other health-related data and trends in the United States.

Predictors of 30-day outcomes following mitral valve repair.

Introduction: Mitral valve repair has been established as the preferred treatment option in the management of degenerative mitral valve disease. Compared with other surgical treatment options, mitral valve repair is associated with increased survival and decreased rates of both complications and reoperations. However, among patients undergoing mitral valve repair, little is known about the predictors of postoperative outcomes.

"Lipase Only, Please": Reducing Unnecessary Amylase Testing.

Background: Serum amylase testing is not recommended for the workup of acute pancreatitis; yet it is commonly ordered in acute care settings.

Methods: This was a student-led quality improvement initiative with application of a pre-post study design at two urban hospitals: Mount Sinai Hospital, a 1,134-bed academic hospital, and Mount Sinai Queens, a 235-bed community hospital. The multifaceted intervention combined a targeted educational and awareness campaign with the decoupling of amylase from electronic order sets (at the academic hospital only), as well as a nonintrusive electronic medical record (EMR) advisory statement (at both hospitals).

Predictors of serious morbidity and mortality after endovascular repair of aortoiliac lesions.

Background: Endovascular approaches to aortoiliac disease are becoming increasingly frequent due to decreases in recovery time, bleeding, and discomfort. Despite this trend, little is known about the predictors of complications. This study was designed to identify risk factors for major 30-day morbidity and mortality after endovascular repair.

Optimal Synthetic Glycosylation of a Therapeutic Antibody.

Glycosylation patterns in antibodies critically determine biological and physical properties but their precise control is a significant challenge in biology and biotechnology. We describe herein the optimization of an endoglycosidase-catalyzed glycosylation of the best-selling biotherapeutic Herceptin, an anti-HER2 antibody. Precise MS analysis of the intact four-chain Ab heteromultimer reveals nonspecific, non-enzymatic reactions (glycation), which are not detected under standard denaturing conditions.

Optimal Synthetic Glycosylation of a Therapeutic Antibody.

Glycosylation patterns in antibodies critically determine biological and physical properties but their precise control is a significant challenge in biology and biotechnology. We describe herein the optimization of an endoglycosidase-catalyzed glycosylation of the best-selling biotherapeutic Herceptin, an anti-HER2 antibody. Precise MS analysis of the intact four-chain Ab heteromultimer reveals nonspecific, non-enzymatic reactions (glycation), which are not detected under standard denaturing conditions.

Rationally designed short polyisoprenol-linked PglB substrates for engineered polypeptide and protein N-glycosylation.

The lipid carrier specificity of the protein N-glycosylation enzyme C. jejuni PglB was tested using a logical, synthetic array of natural and unnatural C10, C20, C30, and C40 polyisoprenol sugar pyrophosphates, including those bearing repeating cis-prenyl units. Unusual, short, synthetically accessible C20 prenols (nerylnerol 1d and geranylnerol 1e) were shown to be effective lipid carriers for PglB sugar substrates.

Highly cis-selective synthesis of iodo-aziridines using diiodomethyllithium and in situ generated N-Boc-imines.

The first preparation of iodoaziridines is described. The addition of diiodomethyllithium to N-Boc-imines affords these novel aziridines in high yields. The reaction proceeds in one-pot via a highly diastereoselective cyclisation of an amino gem-diiodide intermediate.