Safety of cyanoacrylate-based adhesives in creating layered septal cartilage grafts during open structure septorhinoplasty

Use of alloplastic implants for correction of deviated nasal septum: Systematic review and meta-analysis

PURPOSE

To systematically reviews the safety and effectiveness of alloplastic implants (AI) in septoplasty.

METHODS

We conducted a comprehensive search in Medline, EMBASE, SCOPUS, CINAHL, and Cochrane Library databases to identify articles on septoplasty using AI. We also manually searched reference lists of included articles. Inclusion criteria involved prospective or retrospective case-series studies of adults with deviated nasal septum (DNS) who underwent septoplasty with AI, with sufficient follow-up data. Two authors independently screened articles, reviewed full manuscripts, and extracted data.

RESULTS

Out of 5370 articles, 16 met inclusion criteria, encompassing 884 patients from 14 eligible studies. Most studies had fair quality. AI materials included Polydioxanone (PDS), Polycaprolactone (PCL), Titanium, Macropore, and PolyMax. AI usage improved nasal obstruction in most patients, with 95.6 % (84.8 %-100 %) based on physical examination and 96.9 % (89.6 %-100 %) based on symptoms. AI-related complications occurred in 4.3 % (0 %-12.8 %) of cases, mostly non-serious.

CONCLUSIONS

AI use can be considered as a useful adjunct in septoplasty, with uncommon complications similar to standard procedures. However, due to limited-quality evidence, further prospective controlled studies are needed.

Strong and bioactive bioinspired biomaterials, next generation of bone adhesives

The bone adhesive is a clinical requirement for complicated bone fractures always articulated by surgeons. Applying glue is a quick and easy way to fix broken bones. Adhesives, unlike conventional fixation methods such as wires and sutures, improve healing conditions and reduce postoperative pain by creating a complete connection at the fractured joint. Despite many efforts in the field of bone adhesives, the creation of a successful adhesive with robust adhesion and appropriate bioactivity for the treatment of bone fractures is still in its infancy. Because of the resemblance of the body's humid environment to the underwater environment, in the latest decades, researchers have pursued inspiration from nature to develop strong bioactive adhesives for bone tissue. The aim of this review article is to discuss the recent state of the art in bone adhesives with a specific focus on biomimetic adhesives, their action mechanisms, and upcoming perspective. Firstly, the adhesive biomaterials with specific affinity to bone tissue are introduced and their rational design is studied. Consequently, various types of synthetic and natural bioadhesives for bone tissue are comprehensively overviewed. Then, bioinspired-adhesives are described, highlighting relevant structures and examples of biomimetic adhesives mainly made of DOPA and the complex coacervates inspired by proteins secreted in mussel and sandcastle worms, respectively. Finally, this article overviews the challenges of the current bioadhesives and the future research for the improvement of the properties of biomimetic adhesives for use as bone adhesives.

Electrospinning of cyanoacrylate tissue adhesives for human dural repair in endonasal surgery

Cerebral spinal fluid (CSF) leakage is a major postoperative complication requiring surgical intervention, resulting in prolonged healing and higher costs. Biocompatible polymers, such as cyanoacrylates, are currently used as tissue adhesives for closing surgical defects and incisions. Coupling these polymers with nanofiber technology shows promising results for generating nanofibers used in wound care, tissue engineering, and drug delivery. Fiber membranes formed by electrospinning of n-octyl-2-cyanoacrylate (NOCA) are investigated for in situ dural closures after neurosurgery to improve the quality of the closure and prevent post-surgical CSF leaks. Electrospun NOCA fiber membranes showed significantly higher sealing capabilities of defects in human dura, with an average burst pressure of 149 mmHg, compared with that of an FDA-approved common dural sealant that had an average burst pressure of 37 mmHg. In this study, microfabrication of NOCA fibers demonstrates a promising technique for dural repairs.

Patient Safety and Quality Improvement in Otolaryngology-Head and Neck Surgery: A Systematic Review

OBJECTIVE

The current landscape of patient safety/quality improvement (PS/QI) research dedicated to Otolaryngology-Head and Neck Surgery (OHNS) has not been established. This systematic review aims to define the breadth and depth of PS/QI research dedicated to OHNS and to identify knowledge gaps as well as potential areas of future study.

METHODS

The study protocol was developed a priori using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) process. A computerized Ovid/Medline database search was conducted (January 1, 1965-September 30, 2019). Similar computerized searches were conducted using Cochrane Database, PubMed, and Google Scholar. Articles were classified by year, subspecialty, PS/QI category, Institute of Medicine (IOM) Crossing the Chasm categories, and World Health Organization (WHO) subclass.

RESULTS

Computerized searches yielded 11,570 eligible articles, 738 (6.4%) of which met otolaryngology PS/QI inclusion criteria; 178 (24.1%) were not specific to any one subspecialty. The most prevalent subspecialty foci were head and neck (29.9%), pediatric otolaryngology (16.9%), and otology/neurotology (11.0%). Studies examining complications or risk factors (32.0%) and outcomes/quality measures (16.3%) were the most common foci. Classification by the IOM included effective care (31.4%), safety (29.9%), and safety/effective care (25.3%). Most research fell into the WHO categories of understanding causes (28.5%) or measuring harm (28.3%).

CONCLUSION

Most OHNS PS/QI projects (32.0%) focus on reporting complications or risk factors, followed by outcomes/quality measures (16.3%). Knowledges gaps for future research include healthcare disparities, multidisciplinary care, and the WHO category of studies translating evidence into safer care.

LEVEL OF EVIDENCE

NA Laryngoscope, 131:33-40, 2021.