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Fleischer S, Hess M, Brusis T. [From expert opinion practice: Vocal cord immobility after intubation: Recurrent nerve paresis or arytenoid luxation?]. Laryngorhinootologie 2022; 101:422-427. [PMID: 35500580 DOI: 10.1055/a-1807-0987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Go JL, Acharya J, Branchcomb JC, Rajamohan AG. Traumatic Neck and Skull Base Injuries. Radiographics 2019; 39:1796-1807. [PMID: 31589581 DOI: 10.1148/rg.2019190177] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Patients with blunt and penetrating traumatic injuries to the skull base and soft tissues of the neck present to the emergency department every day. Fortunately, truly life-threatening injuries to these regions are relatively uncommon. However, when encountered and not correctly diagnosed, these entities may result in severe morbidity or mortality. The radiologist plays a critical role recognizing these injuries, in which findings may often be subtle and the anatomy potentially challenging to identify. Multisection CT and CT angiography are commonly performed to assess these injuries in the emergency department. Vascular injury to the neck may result in dissection, occlusion, pseudoaneurysm formation, or frank extravasation resulting in stroke or death. Airway compromise may result from laryngotracheal injury. Injuries to the pharynx and esophagus may result in perforation. Injuries to the temporal bone may result in vascular injury to the internal carotid artery or facial nerve injury, which would require immediate surgery or intervention to prevent paralysis.©RSNA, 2019.
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Affiliation(s)
- John L Go
- From the Division of Neuroradiology, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, Calif, and LAC+USC Medical Center, 1983 Marengo Street, D and T Tower, Room 3D321, Los Angeles, CA 90033
| | - Jay Acharya
- From the Division of Neuroradiology, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, Calif, and LAC+USC Medical Center, 1983 Marengo Street, D and T Tower, Room 3D321, Los Angeles, CA 90033
| | - Jasmine C Branchcomb
- From the Division of Neuroradiology, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, Calif, and LAC+USC Medical Center, 1983 Marengo Street, D and T Tower, Room 3D321, Los Angeles, CA 90033
| | - Anandh G Rajamohan
- From the Division of Neuroradiology, Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, Calif, and LAC+USC Medical Center, 1983 Marengo Street, D and T Tower, Room 3D321, Los Angeles, CA 90033
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Abstract
The neck visceral space is a complex region housing several vital structures. Diagnostic imaging plays an important role in the evaluation of neck visceral injuries. Many injuries are initially missed by both clinicians and radiologists because of their infrequency and the high likelihood of other more obvious injuries. Understanding which diagnostic modality to apply at given point in the work-up; recognizing relevant clinical signs, symptoms, and injury mechanisms; and knowing pertinent direct and indirect imaging findings of injury allow radiologists to either directly render the correct diagnosis or choose the most appropriate tool for doing so.
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Okazaki Y, Ichiba T, Higashi Y. Unusual cause of hoarseness: Arytenoid cartilage dislocation without a traumatic event. Am J Emerg Med 2018; 36:172.e1-172.e2. [DOI: 10.1016/j.ajem.2017.10.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 10/15/2017] [Indexed: 12/27/2022] Open
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Friedlander E, Pascual PM, Da Costa Belisario J, Serafini DP. Subluxation of the Cricoarytenoid Joint After External Laryngeal Trauma: A Rare Case and Review of the Literature. Indian J Otolaryngol Head Neck Surg 2017; 69:130-132. [DOI: 10.1007/s12070-016-1028-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 10/14/2016] [Indexed: 10/20/2022] Open
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Afsah OE. Approach to diagnosis of vocal fold immobility: a literature review. THE EGYPTIAN JOURNAL OF OTOLARYNGOLOGY 2015. [DOI: 10.4103/1012-5574.156088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hoarseness caused by arytenoid dislocation after surgery for lung cancer. Gen Thorac Cardiovasc Surg 2014; 62:730-3. [DOI: 10.1007/s11748-013-0282-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 06/21/2013] [Indexed: 10/26/2022]
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Lee DH, Yoon TM, Lee JK, Lim SC. Treatment outcomes of closed reduction of arytenoid dislocation. Acta Otolaryngol 2013; 133:518-22. [PMID: 23350598 DOI: 10.3109/00016489.2012.758387] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSION Closed reduction is an effective and safe treatment method for arytenoid dislocation. Early closed reduction of arytenoid cartilage plays an important role in voice recovery. OBJECTIVE The study reviewed the clinical characteristics of arytenoid dislocation with the aim of identifying factors influencing voice recovery in the closed reduction of arytenoid dislocation. METHODS A retrospective chart review was performed at Chonnam National University Hospital for the period from January 2007 to March 2012. RESULTS Eleven patients with arytenoid dislocation were identified. The causes of arytenoid dislocation were intubation (n = 9) and blunt trauma (n = 2). All cases of arytenoid dislocations were treated by closed reduction. There were no major complications resulting from surgical intervention. Six of the 11 patients (54.5%) regained normal voice and vocal fold movement after closed reduction. Five patients (45.5%) had significant voice improvement postoperatively. In arytenoid dislocation due to blunt trauma, the duration between injury and voice improvement was much longer than in other causes of arytenoid dislocation (p = 0.012).
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Affiliation(s)
- Dong Hoon Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, Hwasun, South Korea
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Gopalakrishnan N, Mariappan K, Indiran V, Maduraimuthu P, Varadarajan C. Cadaveric position of unilateral vocal cord: a case of cricoid fracture with ipsilateral arytenoid dislocation. J Radiol Case Rep 2012; 6:24-31. [PMID: 22690288 DOI: 10.3941/jrcr.v6i3.924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We report a case of cricoid cartilage fracture with unilateral arytenoid dislocation following a motorcycle accident. This 25 year old male sustained blunt injury to the head, face and neck. He presented late to the hospital with one week history of dysphonia. Laryngoscopy revealed cadaveric position of the non-functioning left vocal cord. CT and MRI showed laterally displaced left vocal cord. Displaced fractures were noted in the cricoid at the junction of lamina with the anterior arch on the left side and at the right side of the anterior arch, along with dislocated left arytenoid resulting in ipsilateral vocal cord palsy. Medialization thyroplasty was performed to improve his phonation. Laryngeal trauma warrants close monitoring because of the risk of airway compromise. Radiologists play a crucial role in early diagnosis and should always have high index of suspicion. Recognition of laryngeal injury is important for initial resuscitation as well as for long term airway and vocal function.
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12
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Three-Dimensional Morphometric Analysis of Cricoarytenoid Subluxation. J Voice 2012; 26:133-6. [DOI: 10.1016/j.jvoice.2010.12.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2010] [Accepted: 12/29/2010] [Indexed: 11/18/2022]
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A promising new technique for closed reduction of arytenoid dislocation. The Journal of Laryngology & Otology 2011; 126:168-74. [DOI: 10.1017/s002221511100226x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractObjectives:To study the effect of a new technique for closed reduction of dislocated arytenoids.Methods:The study included 21 females (72.4 per cent) and eight males (27.6 per cent) with a diagnosis of arytenoid dislocation. There were 18 cases of left arytenoid dislocation and 11 of right arytenoid dislocation.Twenty-eight cases had anteromedial dislocation and one had posterolateral dislocation. All patients were treated with closed reduction using custom-made metal rods and an operating microscope, under general anaesthesia.Results:Post-operatively, 21 patients’ voices returned completely to normal (including full vocal fold mobility), five had an improved voice and three failed to show any improvement. There were no post-operative complications.Conclusion:This new closed reduction technique is a safe procedure for patients with dislocated arytenoids. It is repeatable and the outcome is reliable and effective. Closed reduction can be a useful treatment for arytenoid dislocation.
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Norris BK, Schweinfurth JM. Arytenoid dislocation: An analysis of the contemporary literature. Laryngoscope 2011; 121:142-6. [PMID: 21181984 DOI: 10.1002/lary.21276] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES/HYPOTHESIS To discuss the incidence, diagnosis, laryngeal findings, and management of arytenoid dislocation as a separate entity from vocal fold paralysis. STUDY DESIGN Literature review. METHODS A contemporary review of the literature was performed by searching the terms arytenoid cartilage dislocation and subluxation in various combinations. Articles were analyzed and selected based on relevance and content. RESULTS Arytenoid dislocation is described as an uncommon laryngeal finding associated with intubation or blunt laryngeal trauma. The majority of recent publications are case reports or small case series. Diagnosis of arytenoid dislocation with flexible laryngoscopy, helical computed tomography, videostroboscopy, and laryngeal electromyography is recommended. In most reported cases, diagnosis has been made based on the position of the arytenoid at laryngoscopy. Reduction and repositioning of the arytenoid cartilage is reported with limited success noted with delayed diagnosis. Speech therapy may also be a beneficial treatment option. CONCLUSIONS Although arytenoid dislocation is reported in the literature, the body of available evidence fails to sufficiently differentiate it as a separate entity from unilateral vocal fold paralysis. Flexible laryngoscopy is inadequate as a standalone procedure to distinguish arytenoid dislocation from laryngeal nerve injury.
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Affiliation(s)
- Byron K Norris
- Department of Otolaryngology and Communicative Sciences, University of Mississippi, Jackson, Mississippi, USA.
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New approach to diagnose arytenoid dislocation and subluxation using three-dimensional computed tomography. Eur Arch Otorhinolaryngol 2010; 267:1893-903. [DOI: 10.1007/s00405-010-1300-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Accepted: 05/28/2010] [Indexed: 10/19/2022]
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Krishna P, Rosen CA. Office-Based Arytenoid Palpation for Diagnosis of Disorders of Bilateral Vocal Fold Immobility. EAR, NOSE & THROAT JOURNAL 2006. [DOI: 10.1177/014556130608500815] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Bilateral vocal fold immobility is an uncommon but serious condition with many causes. Accordingly, accurate diagnosis is essential in order to treat patients promptly and avoid long-term sequelae. Historically, diagnosis has been performed in the operating room with the patient under general anesthesia. We present the case of a patient who was diagnosed with bilateral vocal fold immobility by in-office arytenoid palpation that required only topical anesthesia of the larynx. The patient subsequently underwent appropriate treatment. In our opinion, office-based arytenoid palpation is a simple, safe, and accurate procedure for diagnosing bilateral vocal fold immobility.
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Affiliation(s)
- Priya Krishna
- From the Voice Center, Department of Otolaryngology, University of Pittsburgh
| | - Clark A. Rosen
- From the Voice Center, Department of Otolaryngology, University of Pittsburgh
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Rubin AD, Hawkshaw MJ, Moyer CA, Dean CM, Sataloff RT. Arytenoid cartilage dislocation: a 20-year experience. J Voice 2006; 19:687-701. [PMID: 16301111 DOI: 10.1016/j.jvoice.2004.11.002] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2004] [Indexed: 12/18/2022]
Abstract
SUMMARY Arytenoid cartilage dislocation is an infrequently diagnosed cause of vocal fold immobility. Seventy-four cases have been reported in the literature to date. Intubation is the most common origin, followed by external laryngeal trauma. Decreased volume and breathiness are the most common presenting symptoms. We report on 63 patients with arytenoid cartilage dislocation treated by the senior author (RTS) since 1983. Significantly more posterior than anterior dislocations were represented. Although reestablishing joint mobility is difficult, endoscopic reduction should be considered to align the heights of the vocal processes. This process may result in significant voice improvement even long after the dislocation. Strobovideolaryngoscopy, laryngeal electromyography, and laryngeal computed tomography (CT) imaging are helpful in the evaluation of patients with vocal fold immobility to help distinguish arytenoid cartilage dislocation from vocal fold paralysis. Familiarity with signs and symptoms of arytenoid cartilage dislocation and current treatment techniques improves the chances for optimal therapeutic results.
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Affiliation(s)
- Adam D Rubin
- Lakeshore Professional Voice Center, Lakeshore Ear, Nose, & Throat Center, St. Clair Shores, MI, USA
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Dhanasekar G, Sadri M, Mohan S, Young K, Leiberman J. Blunt laryngeal trauma resulting in arytenoid dislocation and dysphonia. Auris Nasus Larynx 2006; 33:75-8. [PMID: 16169177 DOI: 10.1016/j.anl.2005.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2005] [Revised: 05/30/2005] [Accepted: 07/22/2005] [Indexed: 11/30/2022]
Abstract
We present a case of left arytenoid dislocation due to blunt laryngeal trauma causing a subsequent large granuloma formation resulting in dysphonia and stridor. The patient underwent emergency excision of the obstructive granuloma and speech therapy was started post-operatively. A few weeks after surgery, the granuloma started to recur and laryngeal manipulation by a specialist osteopath was performed. A few weeks after the conservative management, the recurred granuloma resolved completely and patient's voice improved remarkably. Dislocation of the arytenoid cartilage due to blunt trauma is relatively rare and a consequent spontaneous granuloma formation has not been reported so far in the literature. This is also the first report about efficacy of speech therapy combined with laryngeal manipulation in the management of the arytenoid dislocation and the subsequent laryngeal granuloma.
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Mikuni I, Suzuki A, Takahata O, Fujita S, Otomo S, Iwasaki H. Arytenoid cartilage dislocation caused by a double-lumen endobronchial tube. Br J Anaesth 2005; 96:136-8. [PMID: 16311281 DOI: 10.1093/bja/aei281] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Following surgery requiring the use of a double-lumen endobronchial tube, a patient immediately complained of persistent severe hoarseness. On the third day after the operation, fibreoptic laryngoscopy revealed posterolateral dislocation of the left arytenoid cartilage. By the sixth day of the operation, a slight improvement was observed in the hoarseness without treatment and a spontaneous recovery of arytenoid cartilage dislocation was expected. The patient did not consent to surgical treatment, and therefore a conservative therapy was selected. Ten weeks after the operation, it was found that the dislocated left arytenoid cartilage had spontaneously repositioned and the patient regained his normal voice. The causes and treatment options are discussed.
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Affiliation(s)
- I Mikuni
- Department of Anesthesiology and Critical Care Medicine, Asahikawa Medical College, Asahikawa, Japan.
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Abstract
Vocal process avulsion is a rare complication of intubation or external laryngeal trauma that can cause significant dysphonia. The vocal process develops independently from the body of the arytenoid cartilage, which results in a fusion plane that is vulnerable to trauma. The findings of vocal process avulsion may be subtle, and the relationship of the vocal process to the body of the arytenoid cartilage must be examined closely. Stroboscopy is critical in the evaluation. We describe three cases of vocal process avulsion encountered by the senior author (R.T.S.) over the last 5 years and discuss our approaches to evaluation and treatment. All cases were repaired endoscopically. However, we used three different techniques. These include chemical tenotomy with botulinum toxin, closed reduction with fat injection, and open reduction via cordotomy.
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Affiliation(s)
- Adam D Rubin
- Lakeshore Professional Voice Center, Lakeshore Ear, Nose, & Throat Center, St. Clair Shores, MI, USA
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Wang Z, Liu Q. A comparative study on the close reduction of arytenoid dislocation under indirect and direct laryngoscope. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2004; 22:375-7. [PMID: 12674785 DOI: 10.1007/bf02896791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
To assess the curative effects of different reduction techniques on the dislocation of cricoarytenoid joint caused by intubation, indirect laryngoscope (IL) and direct laryngoscope (DL) were utilized for the closed reduction of the displaced arytenoid under local anesthesia. 23 patients who underwent the reduction for dislocated arytenoid under IL or DL from January 1991 to June 2001 were reviewed. The data were collected on the duration of the laryngeal injury, times of receiving reduction, side-effects after the treatment and the period for voice to return to normal. The relationship between the duration of the laryngeal lesion and the period of the voice rehabilitation was examined. 13 patients received the reduction under IL and 10 patients under DL. Except the times of the reduction, which showed significant difference, no differences were found between IL group and DL group in the course and the period of voice rehabilitation, as well as sore throat after the manipulation. The patients' voice recovery was positively related to their course of disease in both IL and DL group. It is concluded that the recovery of normal voice is obviously affected by the duration of arytenoid dislocation. The reduction under IL is as effective as under DL in the treatment of arytenoid dislocation. Reduction by DL is better suit the patients with long time course of disease.
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Affiliation(s)
- Zhibin Wang
- Department of Otolaryngology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030
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Probst KX, Schön Ybarra MA, Kashima H, Crosby RW. Topography and interactions of the arytenoid and cricoid articular facets: Implications for vocal process positional shifts. Clin Anat 2004; 17:206-13. [PMID: 15042568 DOI: 10.1002/ca.10201] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Using new computer applications and digital technologies, we provide a rigorous description and realistic illustrations of the arytenoid-on-the cricoid rotations. We also provide the articular facet topography and interactions that underlay those rotations and the concomitant vocal process positional shifts. The thyroid cartilage and all soft tissues were removed from three excised, preserved, normal, adult human larynges without disturbing the crico-arytenoid (CA) articular capsule. Three CA assemblies were thus prepared and used to digitize arytenoid rotations and vocal process positional shifts, and, after disarticulation, also the surface contour of the arytenoid and cricoid facets, and the cricoid lumen margin. The digitized data served to computer generate 2D and 3D graphic visualizations of the vocal process positional shifts, of the topography of the facets, and of the facet motion sequences that show that the anteroposteriorly concave arytenoid facet slides and conjunctly rotates on the anteroposteriorly convex cricoid facet. Visual details of all graphic representations and facet motion sequences were essentially identical across the three assemblies. Then, based on the computer generated data obtained from the largest of the CA assemblies, 3D, realistic, and hand-drawn images were made that illustrate the directions in which the arytenoids can rotate and the vocal processes concomitantly shift positions. Results indicate that when the arytenoids rotate by sliding from anterior to posterior on the cricoid facets about a primary axis of motion aligned from medial, posterior, and superior, to lateral, anterior, and inferior, their vocal processes shift positions along a plane obliquely oriented from anterior and medial, to posterior and lateral, and from inferior and medial, to superior and lateral.
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Affiliation(s)
- Kenneth X Probst
- Department of Art as Applied to Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
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Abstract
In summary, long-term complications of artificial airways are rare but important sequelae of artificial airways. Many of the potential long-term complications of translaryngeal intubation and tracheotomy are similar and overlapping. Although most patients who undergo these procedures tend to tolerate them without difficulties, significant morbidity and mortality may occur. Identifying the exact cause of the complication may not be possible at times, due to the multiple risk factors involved in the pathogenesis. It is hoped that understanding these potential complications will lead to a more vigilant preventive measures during the institution of long-term artificial airways and a judicious early search for the underlying pathology when a complication is suspected.
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Affiliation(s)
- Richard D Sue
- Division of Pulmonary and Critical Care Medicine, University of California, Los Angeles, 37-131 CHS, 10833 Le Conte Avenue, Los Angeles, CA 90095-1690, USA
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Lacau Saint Guily J, Boisson-Bertrand D, Monnier P. [Lesions to lips, oral and nasal cavities, pharynx, larynx, trachea and esophagus due to endotracheal intubation and its alternatives]. ANNALES FRANCAISES D'ANESTHESIE ET DE REANIMATION 2003; 22 Suppl 1:81s-96s. [PMID: 12943864 DOI: 10.1016/s0750-7658(03)00163-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Dysphagia of greater than 48 h duration is an indication for indirect laryngoscopy and when odynophagia and otalgia occur simultaneously, the possibility of subluxation of the arytenoids demands an urgent ENT assessment. The potential seriousness of laryngeal lesions following intubation obliges us to use the smallest compatible endotracheal tube. The occurrence of pain cervical surgical emphysema and fever suggests a pharyngeal lesion necessitating the suspension of oral feeding and the initiation of antibiotic therapy with anaerobic activity, while awaiting possible surgical intervention. There is no argument to use a tooth-guard for each intubation, but tooth fragility must be researched. The incidence of nasal fossa trauma is reduced with the use of nasal packs impregnated with local anaesthetic containing a vasoconstrictor. This allows the introduction of a small flexible lubricated tube. Laryngeal mask-induced sore throat is more common than the more serious injuries. The classical technique of introducing a laryngeal mask of appropriate size (4 for women, 5 for men) in which the cuff is inflated to a leak pressure of 20 cm H(2)O reduces this frequency. The facial mask may cause injuries especially with prolonged use. The incidence of pulmonary aspiration, linked to the action of drugs, raised intra-abdominal pressure; an emergent situation or difficult intubation is decreased with the performance of the Sellick maneuver at intubation, rapid induction and the neutralization of gastric acidity. A meticulous technique of insertion of the, individualized anaesthesia, particular vigilance at the time of decurarisation and position changes and a calm awakening assure its optimal use, unless the Proseal laryngeal mask modifies this point of view.
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Affiliation(s)
- J Lacau Saint Guily
- Service d'ORL et chirurgie cervico-faciale, hôpital Tenon, 75970 Paris cedex 20, France
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Abstract
BACKGROUND Disruption of the cricoarytenoid joint is uncommon and possibly underdiagnosed. AIM To highlight the diagnosis of arytenoid subluxation and its management. METHOD Two case reports. CONCLUSION Arytenoid subluxation is a rare condition that should always be considered in patients presenting with symptoms following upper airway instrumentation or external trauma to the neck. Early diagnosis optimises the possibility of restoring normal voice and laryngeal function.
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Affiliation(s)
- J P Dillon
- Department of ENT Surgery, Waterford Regional Hospital, Ireland.
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