Measurement of forces applied during Macintosh direct laryngoscopy compared with GlideScope® videolaryngoscopy
|
submitted by SeanJax 2 months ago
|
|
Laryngoscopy can induce stress responses that may be harmful in susceptible patients. We directly measured the force applied to the base of the tongue as a surrogate for the stress response. Force measurements were obtained using three FlexiForce Sensors® (Tekscan Inc, Boston, MA, USA) attached along the concave surface of each laryngoscope blade. Twenty-four 24 adult patients of ASA physical status 1–2 were studied. After induction of anaesthesia and neuromuscular blockade, laryngoscopy and tracheal intubation was performed using either a Macintosh or a GlideScope®(Verathon, Bothell, WA, USA) laryngoscope. Complete data were available for 23 patients. Compared with the Macintosh, we observed lower median (IQR [range]) peak force (9 (5–13 [3–25]) N vs 20 (14–28 [4–41]) N; p = 0.0001), average force (5 (3–7 [2–19]) N vs 11 (6–16 [1–24]) N; p = 0.0003) and impulse force (98 (42–151 [26–444]) Ns vs 150 (93–207 [17–509]) Ns; p = 0.017) with the GlideScope. Our study shows that the peak lifting force on the base of the tongue during laryngoscopy is less with the GlideScope videolaryngoscope compared with the Macintosh laryngoscope.
|
|
Add your comment
Please Login or Signup to leave a comment
Related stories
| Chip-based protein-protein interaction studied by atomic force microscopy |
| submitted by farhanchemist 23 days ago |
|
| In this paper, a technique for accurate direct measurement of protein to protein interactions before and after the introduction of a drug candidate is developed using atomic force micrsocopy (AFM). The method is applied to known immunosuppressant drug candidate Echinacea purpurea derived cynarin.... |
| |
|
|
| Implicit social cognition and safety culture |
| submitted by EliaJamis 1 year and 1 month ago |
|
| Most models define safety culture as basic assumptions, attitudes, or values concerning organizational safety issues. When measuring safety cultures, many researchers have had their main focus on explicit safety-critical attitudes and generally relied on specific survey instruments. It is questio... |
| |
|
|
| The assessment of shear stress and bed stability in stream ecology |
| submitted by lechin 2 years and 5 months ago |
|
| Substratum stability and shear stress exerted by flowing water can have a strong influence on the structure of benthic communities. Bed stability can be characterised in a variety of ways, e.g. flow competence, threshold of particle entrainment, measures of erosion and deposition, particle transp... |
| |
|
|
| Three-dimensional microfluidic chip for the extraction of mitochondrial DNA |
| submitted by MigueKyan 2 years and 3 months ago |
|
| This study reports an integrated microfluidic chip manufactured by micro-electro-mechanical-system (MEMS) technology used for the automatic extraction of mitochondrial deoxyribonucleic acid (mtDNA). Mitochondria is a key organelle associated with aging, degenerative diseases, and cancers. An alte... |
| |
|
|
| Loads on a spinal implant measured in vivo during whole-body vibration |
| submitted by pitishorp11 2 years and 2 months ago |
|
| After spinal surgery, patients often want to know whether driving a car or using public transportation can be dangerous for their spine. In order to answer this question, a clinically proven vertebral body replacement (VBR) has been modified. Six load sensors and a telemetry unit were integrated ... |
| |
|
|
| Principal arc analysis on direct product manifolds |
| submitted by brotik 1 year and 1 month ago |
|
| We propose a new approach to analyze data that naturally lie on manifolds. We focus on a special class of manifolds, called direct product manifolds, whose intrinsic dimension could be very high. Our method finds a low-dimensional representation of the manifold that can be used to find and visual... |
| |
|
|
|
|
|
|
