Semi-Quantitative Assessment of Surgical Navigation Accuracy During Endoscopic Sinus Surgery in a Real-World Environment.

Introduction: Although surgical navigation is commonly used in rhinologic surgery, data on real world performance are sparse because of difficulties in collecting measurements for target registration error (TRE). Despite publications showing submillimeter TRE, surgeons do report TRE of >3 mm. We describe a novel method for assessing TRE during surgery and report findings with this technique.

Use of bovine-derived collagen matrix in the surgical treatment of empty nose syndrome.

Bovine-derived collagen matrix (BDCM) is a safe augmentation material in patients with empty nose syndrome. BDCM augmentation results in clinically and statistically significant improvement in nasal symptoms. Improvements in nasal symptoms with BDCM augmentation may be durable and can be seen up to 2 years postoperative.

Bystander-application of a novel nasal swab optimized for drug delivery is safe and non-traumatic for the general population.

Objective: The PN Naloxone Nasal Swab (Pocket Naloxone Corp., Bethesda, MD) is a swab optimized for drug delivery and intended for use by non-medical personnel for the emergency treatment of opioid overdose. The aim of this study (PNC-20-003) is to determine the safety of this nasal swab in a real-world environment.

Expansion of distinct peripheral blood myeloid cell subpopulations in patients with rheumatoid arthritis-associated interstitial lung disease.

Objectives: Interstitial lung disease (ILD) is associated with significant mortality in rheumatoid arthritis (RA) patients with key cellular players remaining largely unknown. This study aimed to characterize inflammatory and myeloid derived suppressor cell (MDSC) subpopulations in RA-ILD as compared to RA, idiopathic pulmonary fibrosis (IPF) without autoimmunity, and controls.

Methods: Peripheral blood was collected from patients with RA, RA-ILD, IPF, and controls (N = 60, 15/cohort).