NousNav: A low-cost neuronavigation system for deployment in lower-resource settings.

Purpose: NousNav is a complete low-cost neuronavigation system that aims to democratize access to higher-quality healthcare in lower-resource settings. NousNav's goal is to provide a model for local actors to be able to reproduce, build and operate a fully functional neuronavigation system at an affordable cost.

Methods: NousNav is entirely open source and relies on low-cost off-the-shelf components, which makes it easy to reproduce and deploy in any region.

Management of Severe Facial Nerve Cross Stimulation by Cochlear Implant Replacement to Change Pulse Shape and Grounding Configuration: A Case-series.

Objectives: To investigate the combined effect of changing pulse shape and grounding configuration to manage facial nerve stimulation (FNS) in cochlear implant (CI) recipients.

Patients: Three adult CI recipients with severe FNS were offered a replacement implant when standard stimulation strategies and programming adjustments did not resolve symptoms. Our hypothesis was that the facial nerve was less likely to be activated when using anodic pulses with "mixed-mode" intra-cochlear and extra-cochlear current return.

Optical sensor arrays designed for guided manufacture of perfluorocarbon nanoemulsions with a non-synthetic stabilizer.

Hydrophobic drugs are incorporated into oil-in-water nanoemulsions (OIW) either as new formulations or repurposed for intravenous delivery. Typically, these are manufactured through stepwise processes of sonication or high-pressure homogenization (HPH). The guiding criteria for most nanoemulsion manufacture are the size and homogeneity/polydispersity of the drug-laden particles with strict requirements for clinical injectables.

Higher naloxone dosing may be required for opioid overdose.

Purpose: Carfentanil is a synthetic opioid with an estimated potency that is 10,000 times more than that of morphine and 100 times more than that of fentanyl. Although there is a paucity of evidence, when considering the potency of carfentanil, it is reasonable to speculate that larger doses of naloxone may be required to resuscitate patients after carfentanil ingestion. This case report discusses the use of high-dose naloxone in 2 patients with suspected carfentanil overdose presenting to a small community hospital.

Stable perfluorocarbon emulsions for the delivery of halogenated ether anesthetics.

Background: Research into injectable volatile anesthetics has been ongoing for approximately 40 years, with limited success, in an attempt to address the deficiencies of inhalational anesthesia. The purpose of this work was to formulate and optimize volatile anesthetic carrier emulsions based on our prior work in perfluorocarbon emulsions.

Methods: Perfluorocarbons were screened for their volatilty and emulsion stability.