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Cricothyroid membrane

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https://www.readbyqxmd.com/read/29098260/-applications-of-ultrasound-guided-superior-laryngeal-nerve-block-and-cricothyroid-membrane-puncture-in-conscious-endotracheal-intubation
#1
Jun-An Wang, Yu Sun, Yan Huang, Hong Jiang
PURPOSE: To explore the clinical value of ultrasound-guided superior laryngeal nerve block and cricothyroid membrane puncture in conscious endotracheal intubation. METHODS: Thirty ASA classⅠorII patients scheduled for selective surgeries were randomly divided into 2 groups, Group U was ultrasound-guided group (n=15), group A was anatomical location group (n=15). Transnasal tracheal intubation was performed in all patients. In patient of group U, thyrohyoid membrane was shown hyperecho by ultrasound and echoless superior laryngeal artery passed across it...
June 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29066133/enhancement-of-cricothyroidotomy-education-using-a-novel-technique-cadaver-autografting
#2
Ryan F Coughlin, Iris Chandler, John C Binford, James W Bonz, David C Hile
BACKGROUND: Cricothyroidotomy is a lifesaving procedure required in up to 2% of emergent airways. Emergency medicine training programs frequently instruct this procedure via cadaver training, but cadaver cost and availability limit the opportunity for all trainees to perform the critical initial skin incision. Cadaver autografting is a novel way to simulate all steps of the procedure. OBJECTIVE: Our aim was to determine whether the technique of autografting cadaver tissue improves the experience of cricothyroidotomy simulation education for emergency medicine trainees...
October 21, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29063583/infrared-red-intubation-system-irris-guided-flexile-videoscope-assisted-difficult-airway-management
#3
M S Kristensen, E Fried, P Biro
BACKGROUND: Tracheal intubation with a flexible scope is a cornerstone technique in patients with severely difficult airways, but may fail. We report on a technique, Infrared Red Intubation System (IRRIS), that seems to facilitate the identification of the glottis. METHODS: The IRRIS is placed over the patient's cricothyroid membrane and emits blinking infrared light through the patient's skin into the subglottic space. When a flexible videoscope (one that does not filter infrared light) is introduced into the airway, it will display this as a blinking white light emerging from the glottis, retrograde transillumination, showing the pathway to the trachea...
October 24, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28988443/effects-of-supramaximal-balloon-dilatation-pressures-on-adult-cricoid-and-tracheal-cartilage-a-cadaveric-study
#4
Venkata S P B Durvasula, Sara C Shalin, Ozlem E Tulunay-Ugur, James Y Suen, Gresham T Richter
OBJECTIVES/HYPOTHESIS: Cricoid fracture is a serious concern for balloon dilatation in airway stenosis. Furthermore, there are no studies examining tracheal rupture in balloon dilatation of stenotic segments. The aim of this study was to evaluate the effect of supramaximal pressures of balloons on the cricoid and tracheal rings. STUDY DESIGN: Prospective cadaveric study. METHODS: Seven cadaveric laryngotracheal complexes of normal adults with intact cricothyroid membranes were acquired...
October 8, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28843218/clinicopathologic-findings-and-treatment-outcome-of-laryngectomized-patients-with-laryngeal-cancer-and-hypopharyngeal-cancer-an-experience-in-thailand
#5
Noppadol Larbcharoensub, Duangkamon Wattanatranon, Juvady Leopairut, Suwimon Suntisuktana, Boonsam Roongpupaht, Chalermchai Chintrakarn, Jumroon Tungkeeratichai, Phurich Praneetvatakul, Thongchai Bhongmakapat, Wichit Cheewaruangroj, Supawadee Prakunhungsit
Objective: To evaluate the clinicopathologic findings and treatment outcome in laryngectomized patients with laryngeal cancer and hypopharyngeal cancer. Materials and Methods: The authors retrospectively reviewed the medical records of 212 patients who had been newly diagnosed and treated with laryngectomy between January 2000 and December 2010. The age, gender, clinical manifestations, associated predisposing condition, tumor WHO grade, AJCC tumor stage, maximum tumor size, anatomical involvement, type of surgery, postoperative sequelae, treatment and therapeutic outcome were analyzed...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28837293/-%C3%A2-golden-hour-%C3%A2-and-the-sellick-manoeuvre-in-emergency-care-we-must-not-throw-out-the-baby-with-the-bathwater
#6
Lukas Bürki, Bertrand Yersin
This article evaluates 3 controversial subjects of pre-hospital emergency care : 1) The concept of the « Golden hour » predicates an increased morbidity and mortality for injured patients, if pre-hospital care exceeds 1 hour. In the subgroup of patients presenting with severe hemorrhagic injuries or penetrating trauma to the torso, a transport of 60 minutes or less decreases mortality ; 2) The Sellick manoeuvre is used to decrease the risk of bronchoaspiration in patients undergoing an emergency intubation...
August 9, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28622494/laryngeal-neuropathy-in-adult-goats-with-copper-deficiency
#7
R F A Sousa, V M Almeida, J E Neto, C W A Nascimento, G X Medeiros, R M T Medeiros, F Riet-Correa, F S Mendonça
The aim of this study was to elucidate the cause of a neurological syndrome characterized by stridor in adult goats with clinical signs of copper deficiency. The main clinical signs consisted of apathy, emaciation, pale mucous membranes, mucous nasal discharge, dyspnea, severe achromotrichia, diffuse alopecia, torpor, ataxia, and stridor. When the goats were forced to move, the stridor increased. In a herd of 194 Toggenburg goats, 10 adult goats with clinical signs of copper deficiency were removed from the herd and divided into 2 groups: group 1, which consisted of 4 nannies and 1 buck with stridor, and group 2, which consisted of 4 nannies and 1 buck without stridor...
July 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28604085/tension-pneumothorax-after-percutaneous-tracheostomy
#8
Sarina Matsumura, Naotaka Kishimoto, Tomio Iseki, Yoshihiro Momota
A 76-year-old woman with right mandibular gingival cancer was scheduled for surgery. A percutaneous tracheostomy kit was used for tracheostomy under intravenous sedation. After puncturing the cricothyroid membrane, a dilator was inserted along a guidewire. Bucking was observed at the time of insertion of the dilator, despite intratracheal lidocaine spray applied before insertion. After that, the tracheostomy tube was inserted, but no capnographic waveforms appeared when the tube was connected to the anesthesia circuit...
2017: Anesthesia Progress
https://www.readbyqxmd.com/read/28577552/determining-the-amount-of-training-needed-for-competency-of-anesthesia-trainees-in-ultrasonographic-identification-of-the-cricothyroid-membrane
#9
Katia F Oliveira, Cristian Arzola, Xiang Y Ye, Jefferson Clivatti, Naveed Siddiqui, Kong E You-Ten
BACKGROUND: Airway guidelines recommend the use of ultrasound to localize the cricothyroid membrane prior to airway manipulation in difficult airways. In this study, we aimed to determine the amount of training anesthesia trainees would need to achieve competence in bedside ultrasound to identify the cricothyroid membrane. METHODS: This is a prospective non-randomized cohort study in the Department of Anesthesia at Mount Sinai Hospital (Toronto, Ontario, Canada)...
June 2, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28530217/-phonosurgical-methods-of-treatment-in-unilateral-vocal-folds-paralysis
#10
REVIEW
Bozena Kosztyła-Hojna, Greta Berger, Maciej Zdrojkowski
Glottal insufficiency (GI) is a cause of breathy voice that can profoundly affect quality of voice. Main causes are unilateral vocal fold paralysis or endoscopic cordectomy for the early treatment of laryngeal cancer of the glottis. The main strategy in surgical treatment is type I medialization thyroplasty according to Isshiki with the use of implants e.g. silastic, hydroxyapatite, titanium, Gore-Tex or Montgomery. Other procedures are arytenoid adduction, the injection laryngoplasty via thyrohyoid and cricothyroid approach and laryngeal reinnervation...
April 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28463474/the-height-of-the-cricothyroid-membrane-on-computed-tomography-scans-in-trauma-patients
#11
T Nutbeam, R Clarke, T Luff, D Enki, D Gay
Emergency cricothyrotomy is a common feature in all difficult airway algorithms. It is the final step following a 'can't intubate, can't oxygenate' scenario. It is rarely performed and has a significant failure rate. There is variation in the reported size of the cricothyroid membrane, especially across population groups. Procedural failure may result from attempting to pass a device with too large an external diameter through the cricothyroid membrane. We aimed to determine the maximum height of the cricothyroid membrane in a UK trauma population...
May 2, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28131119/the-use-of-ultrasonography-in-obstetric-anesthesia
#12
REVIEW
Chiraag Talati, Cristian Arzola, Jose C A Carvalho
This article provides an overview of the use of ultrasonography in obstetric anesthesia. It discusses the indications, benefits, and techniques of using ultrasonography to optimize the delivery of anesthesia and provide safe and efficacious clinical care. More specifically, it discusses the use of ultrasonography to facilitate neuraxial anesthesia, abdominal field blocks, central and peripheral vascular access, as well as the assessment of the lung fields and gastric contents, and identification of the cricothyroid membrane...
March 2017: Anesthesiology Clinics
https://www.readbyqxmd.com/read/27665948/variability-in-the-anterior-extralaryngeal-branch-of-the-recurrent-laryngeal-nerve-clinical-implications
#13
Kara Marie Hessel, Erich Wessel, Anthony Olinger, Barth W Wright
BACKGROUND: This study aimed to identify the Anterior and Posterior Extralaryngeal branches (AELB, PELB) of the Recurrent Laryngeal Nerve (RLN), measure these branches when present, and determine relationships between gender, sidedness and neck length. MATERIALS AND METHODS: Dissection was completed to level of the thyroid on 45 cadavers. The course of the RLN was then traced superiorly from its entry into the neck. Careful reflection of the thyroid and dissection of the lateral thyroid ligament permitted visualization of the full course of the nerve...
September 26, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27600801/control-of-the-glottal-configuration-in-ex-vivo-human-models-quantitative-anatomy-for-clinical-and-experimental-practices
#14
Aude Lagier, Daphné Guenoun, Thierry Legou, Robert Espesser, Antoine Giovanni, Pierre Champsaur
INTRODUCTION: The objective of this paper was to identify the determining factors of the glottal prephonatory configuration from the point of view of the resulting muscular actions (i.e., arytenoids adduction, membranous vocal fold adduction, and tension). MATERIALS AND METHODS: 21 human non-embalmed excised larynges (12 females and 9 males) were studied. Experiment A (11 larynges) studied four conditions of adduction of the vocal folds and arytenoids. Experiment B (10 larynges) studied the effect of cricothyroid approximation on the vocal fold length and the cricothyroid angle...
March 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27555201/ultrasound-guided-airway-blocks-using-a-curvilinear-probe
#15
Martin Krause, Bahareh Khatibi, Jacklynn F Sztain, Pariza Rahman, Anna B Shapiro, NavParkash S Sandhu
We describe a novel technique of real-time ultrasound-guided superior laryngeal nerve and translaryngeal blocks in 4 patients with anticipated difficult airways. All patients had altered neck anatomy, and 1 had a prior unsuccessful awake fiberoptic bronchoscopic intubation. For block performance, an 11-mm broadband curved array transducer with a scanning frequency between 8 and 5 MHz (Sonosite, Bothell, WA) was used for anatomical structure identification, needle guidance toward each superior laryngeal nerve and through the cricothyroid membrane, and deposition of local anesthetic in the appropriate location...
September 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27529028/role-of-upper-airway-ultrasound-in-airway-management
#16
REVIEW
Adi Osman, Kok Meng Sum
Upper airway ultrasound is a valuable, non-invasive, simple, and portable point of care ultrasound (POCUS) for evaluation of airway management even in anatomy distorted by pathology or trauma. Ultrasound enables us to identify important sonoanatomy of the upper airway such as thyroid cartilage, epiglottis, cricoid cartilage, cricothyroid membrane, tracheal cartilages, and esophagus. Understanding this applied sonoanatomy facilitates clinician to use ultrasound in assessment of airway anatomy for difficult intubation, ETT and LMA placement and depth, assessment of airway size, ultrasound-guided invasive procedures such as percutaneous needle cricothyroidotomy and tracheostomy, prediction of postextubation stridor and left double-lumen bronchial tube size, and detecting upper airway pathologies...
2016: Journal of Intensive Care
https://www.readbyqxmd.com/read/27453755/saccular-cyst-with-atypical-presentation
#17
A Zamfir-Chiru-Anton, D C Gheorghe
UNLABELLED: Respiratory obstruction and stridor in infants and children are not uncommon. A rare cause of these sometimes life-threatening symptoms is the congenital saccular cyst. OBJECTIVES: We present the case of a 5-year-old girl with a cervical tumor, which appeared after a laryngeal endoscopic surgery of a saccular cyst with two relapses and a particular local evolution of its recurrence through the cricothyroid membrane. MATERIAL AND METHOD: The patient data has been reviewed over the entire follow-up period and a thorough an analysis of her investigations and surgery was performed...
April 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27432055/ultrasonographic-identification-of-the-cricothyroid-membrane-best-evidence-techniques-and-clinical-impact
#18
M S Kristensen, W H Teoh, S S Rudolph
Inability to identify the cricothyroid membrane by inspection and palpation contributes substantially to the high failure rate of cricothyrotomy. This narrative review summarizes the current evidence for application of airway ultrasonography for identification of the cricothyroid membrane compared with the clinical techniques. We identified the best-documented techniques for bedside use, their success rates, and the necessary training for airway-ultrasound-naïve clinicians. After a short but structured training, the cricothyroid membrane can be identified using ultrasound in difficult patients by previously airway-ultrasound naïve anaesthetists with double the success rate of palpation...
September 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27274380/simply-modified-percutaneous-tracheostomy-using-the-cook%C3%A2-ciaglia-blue-rhino%C3%A2-a-case-series
#19
Woosuk Chung, Byung Muk Kim, Sang-Il Park
When first introduced, percutaneous dilatational tracheostomy (PDT) was performed using a bronchoscope. The bronchoscope itself, however, has several disadvantages, including interruption of ventilation. Modifications of the standard PDT technique have suggested that PDT can be safely performed without a bronchoscope. However, the safety of these modifications is unclear and many modifications have yet to be widely adopted. This study retrospectively evaluated the safety of a simplified PDT technique using the Cook® Ciaglia Blue Rhino™ in 186 patients...
June 2016: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/27187127/ultrasonographic-appearance-of-the-cricothyroid-membrane
#20
Paul J Zetlaoui, Dan Benhamou
No abstract text is available yet for this article.
June 2016: Anesthesiology
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