Designing and 3D Printed PLA Based Implant Used in Treatment for Unilateral Vocal Cord Paralysis

Five cases of unilateral vocal cord paralysis/ paresis were diagnosed following extracorporeal membrane oxygenation for newborn respiratory failure. All were right sided and transient in nature. None of the five patients had other findings commonly associated with vocal cord palsy. The extracorporeal membrane oxygenation procedure requires surgical dissection in the carotid sheath on the right side of the neck, an area immediately adjacent to both the vagus and recurrent laryngeal nerve. It is speculated that vocal cord paralysis in these infants was acquired as a result of the extracorporeal membrane oxygenation cannulation. Although the vocal cord paralysis resolved in all cases, two patients had difficult courses after extracorporeal membrane oxygenation. Therefore, laryngoscopic examination should be considered for patients after extracorporeal membrane oxygenation.

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Dyspnea due to Residual Neuromuscular Blockade in Elderly Patient with Unrecognized Pre-existing Unilateral Vocal Cord Paralysis

The Ewha Medical Journal ◽

10.12771/emj.2017.40.4.159 ◽

2017 ◽

Vol 40 (4) ◽

pp. 159 ◽

Cited By ~ 1

Author(s):

Chae Hwang Lim ◽

Youn Jin Kim ◽

Jong Hak Kim ◽

Ji Sun Jeong

Keyword(s):

Elderly Patient ◽

Vocal Cord ◽

Neuromuscular Blockade ◽

Vocal Cord Paralysis ◽

Residual Neuromuscular Blockade ◽

Unilateral Vocal Cord Paralysis

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Prospective analysis of type I thyroplasty using gore-tex implant

International Journal of Otorhinolaryngology and Head and Neck Surgery ◽

10.18203/issn.2454-5929.ijohns20171177 ◽

2017 ◽

Vol 3 (2) ◽

pp. 276

Author(s):

Sanjeev Mohanty ◽

Sreenivas . ◽

Vinay Raj T. ◽

Devipriya . ◽

Vinoth M.

Keyword(s):

Vocal Cord ◽

Vocal Cord Paralysis ◽

Vocal Cord Palsy ◽

Post Treatment ◽

Type I ◽

Self Assessment ◽

Maximum Phonation Time ◽

Number Of Factors ◽

Treatment Objective ◽

Unilateral Vocal Cord Paralysis

Background: Vocal cord paralysis is a clinical sign caused by paralysis of intrinsic muscles of larynx due to dysfunction of recurrent laryngeal nerve. There are several methods available surgically for the medialisation of the abducted vocal cord. One of the common effective modality is the Gore-Tex medialisation thyroplasty. The results depend on a number of factors including the surgical expertise and extrusion of the Gore –Tex implant. This study is aimed at analysis of all Gore-Tex medialisation thyroplasty done at our centre. Prospectively asses and analyze the vocal outcomes and quality of life of patients in type 1 medialisation thyroplasty using Gore-Tex implant.Methods: Prospective study of 48 months on 30 patients with unilateral vocal cord paralysis. Surgical procedure for the patients was standardized by using Gore-Tex implant to medialize the cord. Video-Laryngoscopy at end of 1st month and stroboscopy & voice analysis at end of 3rd month post treatment, the parameters used for the pre and post treatment objective analysis are a) stroboscopic analysis, b) psychoacoustic evaluation, c) maximum phonation time, d) patient’s self-assessment. Results: In our study of 30 patients with a follow up period of 48 months, we can conclude as follows – a)unilateral vocal cord paralysis does not have age or gender specificity, b)statistically significant vocal cord palsy affects the left side more by 70%, c)post op Gore-tex medialisation thyroplasty showed a statistically highly significant improvement in psychoacoustic, mean phonation time, d)post op Gore-Tex medialisation thyroplasty showed a statistically significant improvement in videostroboscopic analysis.Conclusions: Psycho acoustic, mean phonation time analysis would complement each other in the assessment of the medialisation thyroplasty thus obviating videostroboscopy.

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