Retrograde fiberoptic intubation

2020 ◽  
Author(s):  
Babak Babakhani ◽  
Mohammad Moharrami ◽  
Amir Jalal Abbasi
Keyword(s):  
Promising Result ◽  
Clinical Investigation ◽  
Guide Wire ◽  
Mouth Opening ◽  
Technical Note ◽  
New Technique ◽  
Fiberoptic Intubation ◽  
Direct Visualization ◽  
New Approach ◽  
Retrograde Intubation

This technical note aims to introduce a new approach for intubation of patients with restricted mouth opening in cases that conventional and fiberoptic-assisted endotracheal intubation are not possible. The proposed technique is a modification to the previously well-established retrograde intubation method. The main advantage of this new technique is the employment of fiberscope for direct visualization which eliminates the use of guide wire. The endotracheal tube enters through the nostril and is railroaded using the fiberscope as a guide. Using this new technique can prevent the complications of tracheostomy and the traditional retrograde intubation in patients that anterograde intubation is not feasible. The promising result of conducting the intubation with this approach can be considered the basis for future clinical investigation.

scholarly journals Retrograde intubation: An alternative way for the management of difficult airway

1970 ◽  
Vol 6 (4) ◽  
pp. 516-519 ◽  
Author(s):  
P Lama ◽  
BR Shrestha
Keyword(s):  
Tracheal Intubation ◽  
Fiber Optic ◽  
Guide Wire ◽  
Mouth Opening ◽  
Plate Removal ◽  
Flexible Fiber ◽  
Expert User ◽  
Retrograde Intubation ◽  
Lower Mandible ◽  
Difficult Situations

Inserting a retrograde wire into the pharynx through a cricothyroid puncture can facilitate tracheal intubation in difficult situations where either a flexible fiber-optic bronchoscope or an expert user of such a device is not available. Even in cases when fibropric can not be negotiated for the purpose,this method has been claimed to be useful to manage the airway. Some mouth opening is essential for the oral or nasal retrieval of the wire from the pharynx. Here, a case of post mandibular reconstructed wound infection required surgical debridement and plate removal from reconstructed lower mandible under general anesthesia. We retrieved the guide wire passed through a cricothyroid puncture and subsequently accomplished wire-guided oro-tracheal intubation. In the absence of a flexible fiber-optic bronchoscope, this technique is a very useful aid to intubate patients with limited mouth opening. Key words: cricothyrotomy, guide wire, retrograde endotracheal intubation (REI), surgery. doi: 10.3126/kumj.v6i4.1748     Kathmandu University Medical Journal (2008), Vol. 6, No. 4, Issue 24, 516-519   

Awake endotracheal retrograde intubation in restricted mouth opening: a ‘J’-tipped guide wire technique—a retrospective study

2013 ◽  
Vol 18 (4) ◽  
pp. 393-396 ◽  
Author(s):  
Nitin Bhola ◽  
Anendd Jadhav ◽  
Rajiv Borle ◽  
Gaurav Khemka ◽  
Abbas ali Ajani
Keyword(s):  
Retrospective Study ◽  
Guide Wire ◽  
Mouth Opening ◽  
Retrograde Intubation

scholarly journals Anaesthesia management of a difficult airway patient with severe aortic stenosis for major oncosurgery

2021 ◽  
Vol 8 (4) ◽  
pp. 597-599
Author(s):  
Ninad Chodankar ◽  
Disha Kapadia ◽  
Hemant Mehta
Keyword(s):  
Aortic Stenosis ◽  
Difficult Airway ◽  
Severe Aortic Stenosis ◽  
Mouth Opening ◽  
Perioperative Period ◽  
Fiberoptic Intubation ◽  
Team Approach ◽  
Free Fibula Flap ◽  
Early Recovery ◽  
Perioperative Morbidity

Over the past few decades, oncosurgical procedures are increasing in number, require considerable expertise and training for anaesthetising such patients. Aortic Stenosis itself poses great challenge, causes significant increase in morbidity and mortality in the perioperative period. Head, neck oncosurgical procedures with difficult airway requiring awake fiberoptic intubation in such patients adds to the challenge.We describe once such case of previously operated Carcinoma of oral cavity with new growth involving mandible for excision of tumour with neck dissection and mandibular reconstruction with a free Fibula flap. This patient now presented with anticipated difficult airway with restricted mouth opening and a recent diagnosis of severe Aortic stenosis with mean gradient across aortic valve of 52mmHg and valve area 0.8 cm2.Such patient requires multidisciplinary team approach by cardiologist, anaesthesiologist, surgeon and intensivist to prevent perioperative morbidity and facilitate early recovery.

scholarly journals Development of FRET-based indicators for visualizing homophilic trans interaction of a clustered protocadherin

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Takashi Kanadome ◽  
Natsumi Hoshino ◽  
Takeharu Nagai ◽  
Tomoki Matsuda ◽  
Takeshi Yagi
Keyword(s):  
Fluorescent Proteins ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Direct Visualization ◽  
Binding Properties ◽  
New Approach ◽  
Self Recognition ◽  
Highly Sensitive ◽  
Donor And Acceptor ◽  
Clustered Protocadherins

AbstractClustered protocadherins (Pcdhs), which are cell adhesion molecules, play a fundamental role in self-recognition and non-self-discrimination by conferring diversity on the cell surface. Although systematic cell-based aggregation assays provide information regarding the binding properties of Pcdhs, direct visualization of Pcdh trans interactions across cells remains challenging. Here, we present Förster resonance energy transfer (FRET)-based indicators for directly visualizing Pcdh trans interactions. We developed the indicators by individually inserting FRET donor and acceptor fluorescent proteins (FPs) into the ectodomain of Pcdh molecules. They enabled successful visualization of specific trans interactions of Pcdh and revealed that the Pcdh trans interaction is highly sensitive to changes in extracellular Ca2+ levels. We expect that FRET-based indicators for visualizing Pcdh trans interactions will provide a new approach for investigating the roles of Pcdh in self-recognition and non-self-discrimination processes.

scholarly journals A New Technique to Solve the Instant Insanity Problem

2016 ◽  
Vol 11 (10) ◽  
pp. 5766-5773
Author(s):  
Salar Y Alsardary ◽  
Hwee Jung Kim ◽  
Julie George
Keyword(s):  
Graph Theory ◽  
Programming Language ◽  
New Technique ◽  
New Approach ◽  
A New Technique

Instant Insanity [1] consists of four cubes, each of whose six faces are colored with one of the four colors: red, blue, white, and green. The object is to stack the cubes in such a way that each of the four colors appears on each side of the resulting column. See figure 1 below[2]. Traditionally, this could be solved using graph theory.However, in this article, we introduce a new technique to solve the problem without using graph theory. We also used a Perl programming language to implement the new approach for the Instant Insanity.

scholarly journals Ultraviolet spectra of star-forming galaxies with time-dependent dust obscuration

2003 ◽  
Vol 212 ◽  
pp. 734-735
Author(s):  
Lucimara P. Martins ◽  
Claus Leitherer ◽  
Daniela Calzetti
Keyword(s):  
Stellar Wind ◽  
Time Dependent ◽  
New Technique ◽  
New Approach ◽  
Star Forming ◽  
Ultraviolet Spectra

We present a new approach to probe the properties of the most massive, ionizing stars with respect to the less massive, non-ionizing stars. The new technique utilizes stellar-wind lines, instead of the previously employed nebular lines. This allows us to probe the timescale of the dust dispersal in a very young obscured starburst from purely stellar diagnostics.

scholarly journals A Software Architecture to Mimic a Ventricular Tachycardia in Intact Murine Hearts by Means of an All-Optical Platform

2019 ◽  
Vol 2 (1) ◽  
pp. 7 ◽  
Author(s):  
Francesco Giardini ◽  
Valentina Biasci ◽  
Marina Scardigli ◽  
Francesco S. Pavone ◽  
Gil Bub ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Electrical Activity ◽  
Real Time ◽  
Temporal Resolution ◽  
Technical Note ◽  
High Temporal Resolution ◽  
Excitable Cells ◽  
New Approach ◽  
Cardiac Electrical Activity ◽  
All Optical

Optogenetics is an emerging method that uses light to manipulate electrical activity in excitable cells exploiting the interaction between light and light-sensitive depolarizing ion channels, such as channelrhodopsin-2 (ChR2). Initially used in the neuroscience, it has been adopted in cardiac research where the expression of ChR2 in cardiac preparations allows optical pacing, resynchronization and defibrillation. Recently, optogenetics has been leveraged to manipulate cardiac electrical activity in the intact heart in real-time. This new approach was applied to simulate a re-entrant circuit across the ventricle. In this technical note, we describe the development and the implementation of a new software package for real-time optogenetic intervention. The package consists of a single LabVIEW program that simultaneously captures images at very high frame rates and delivers precisely timed optogenetic stimuli based on the content of the images. The software implementation guarantees closed-loop optical manipulation at high temporal resolution by processing the raw data in workstation memory. We demonstrate that this strategy allows the simulation of a ventricular tachycardia with high stability and with a negligible loss of data with a temporal resolution of up to 1 ms.

scholarly journals Working Cannula-Based Endoscopic Foraminoplasty: A Technical Note

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Suxi Gu ◽  
Kedong Hou ◽  
Wei Jian ◽  
Jianwei Du ◽  
Songhua Xiao ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Operation Time ◽  
Skin Incision ◽  
Technical Note ◽  
Lumbar Discectomy ◽  
New Technique ◽  
Foraminal Stenosis ◽  
Transforaminal Approach ◽  
A New Technique ◽  
Endoscopic Lumbar Discectomy

Purpose. Percutaneous endoscopic lumbar discectomy (PELD) is a minimally invasive disc surgery that can be performed under local anesthesia and requires only an eight-mm skin incision. For the patients with lumbar foraminal stenosis, the migrated disc is difficult to remove with a simple transforaminal approach. In such cases, the foraminoplasty techniques can be used. However, obtaining efficient foramen enlargement while minimizing radiation exposure and protecting the nerves can be challenging. Methods. In this study, we propose a new technique called the Kiss-Hug maneuver. Under endoscopic viewing, we used the bevel tip of a working cannula as a bone reamer to enlarge the foramen. This allowed us to efficiently enlarge the lumbar foramen endoscopically without the redundancy and complications associated with reamers or trephines. Results. Details of the four steps of the Kiss-Hug maneuver are reported along with adverse events. The advantages of this new technique include minimizing radiation exposure to both the surgeon and the patient and decreasing the overall operation time. Conclusion. The endoscopic Kiss-Hug maneuver is a useful and reliable foraminoplasty technique that can enhance the efficiency of foraminoplasty while ensuring patient safety and reducing radiation exposure.

Evaluation of retrograde intubation in patients with limited mouth opening

2013 ◽  
Vol 27 (4) ◽  
pp. 631-632 ◽  
Author(s):  
Adnan Tüfek ◽  
Musa Can Uçan ◽  
Orhan Tokgöz ◽  
Feyzi Çelik ◽  
Serkan Ağaçayak
Keyword(s):  
Mouth Opening ◽  
Limited Mouth Opening ◽  
Retrograde Intubation
Sign in / Sign up

Export Citation Format

Share Document