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At least 19 recordsLinked to original sources

Vocal cord paralysis.

Vocal cord paralysis is a multifacted problem that affects patients of all ages and presents initially to a wide range of healthcare professionals. It can cause laryngeal dysfunction ranging from slight hoarseness to life-threatening airway obstruction. When confronted with a patient with new onset vocal cord paralysis, the physician should determine the etiology of the paralysis. Only after an accurate diagnosis, can restoration of laryngeal function be addressed. Peripheral lesions injuring the vagus nerve or its branches are responsible for 90% of all vocal cord paralysis. Etiologies include neoplasms, surgical iatrogenic injury, and blunt and penetrating trauma in the head, neck, and thorax. Thyroid surgery has historically been accountable for almost a third of reported unilateral vocal cord paralyses. However, recent review has demonstrated a dramatic reduction in this incidence to less than 5%. Numerous treatment options exist for patients with vocal cord paralysis. These treatments can drastically reduce the social and economic disability incurred by these patients.

Humans↗

Tuberculous lymphadenopathy of superior mediastinum causing vocal cord paralysis.

Vocal cord paralysis because of involvement of recurrent laryngeal nerve by benign and acute inflammatory lymphadenopathy is a rare condition. Presented here is a case of tuberculous lymphadenopathy of superior mediastinum causing left recurrent laryngeal nerve paralysis, which was successfully treated by antituberculosis treatment, with complete recovery of vocal cord function.

Adult↗

The clinical differentiation between vocal cord paralysis and vocal cord fixation using electromyography.

With newer techniques for laryngeal intervention, it becomes a practical necessity to understand whether an immobile cord is due to neurogenic dysfunction or cricoarytenoid fixation. An objective test for this differentiation is laryngeal electromyography, which can be done as an office procedure with a minimum of discomfort. Our experience in a clinical setting has shown laryngeal electromyography to be efficient in accurately assessing the neuromuscular status of the intrinsic laryngeal musculature.

Adult↗

The influence of laser arytenoidectomy on ventilation parameters in patients with bilateral vocal cord paralysis.

Bilateral vocal cord paralysis is a symptom that may lead to serious breathing problems. The treatment of patients with vocal cord paralysis presents a challenge to otolaryngologists. Many techniques have been developed in an attempt to improve the patient's airway insufficiency. The aim of the study was to evaluate the efficacy of the laser total unilateral arytenoidectomy with posterior cordectomy in patients with bilateral vocal cord paralysis. Thrity-six patients (33 females, 3 male) aged between 24 and 76 (mean 52) were treated by laser arytenoidectomy. The flow-volume loop and pletysmography were performed in all patients before and after the operation. Additionally, a group of 15 patients with unilateral vocal cord paralysis was introduced and analyzed as a special control. Based on the relative increase of the parameters after the surgery, the most useful of them were selected for the evaluation. Also, the character of the laryngeal obstruction was defined. Changes in the flow-volume loop before and after surgery were compared by planned comparison in univariate analysis ANOVA/MANOVA with an isolated control group. As the parameters AREA(EX), FEF50, FEF75, PEF and MMEF(75/25) increased most effectively, they appeared to be the most useful in the evaluation. FIV1/FEF1, FEF50/FIF50 and FEV1/FEV(0,5) allowed the definition of the obstruction as an extrathoracic dynamically variable quantity. The resistances measured during pletysmography diminished significantly after surgery. The introduction of the special control group with unilateral vocal cord paralysis showed that despite the significant improvement after surgery, the patients who had been operated on still had a laryngeal obstruction worse than that of patients from the control group. The laser arytenoidectomy is shown to be a useful and efficacious procedure for bilateral vocal cord paralysis.

Adult↗

Medialization thyroplasty for unilateral vocal cord paralysis.

Unilateral vocal cord paralysis causes disturbances with vocal function and swallowing, to include aspiration. Thyroplasty type I has become one of the preferred surgical treatments for unilateral vocal cord paralysis. It is tolerated better by the patient, improves predictability of surgical results, and provides good voice results when compared to more traditional procedures, such as teflon injection. Use of a premade thyroplasty implant has made it possible to accomplish permanent medial displacement of a paralyzed vocal cord, avoiding the complications of other surgical options.

Humans↗

Contemporary evaluation of unilateral vocal cord paralysis.

Unilateral vocal cord paralysis is a common finding in the practice of otolaryngology. Multiple etiologies have been described and have not changed appreciably in the last century. We attempted to characterize the contemporary evaluation of unilateral vocal cord paralysis, with consideration given to cost-effectiveness. Thirty-one board-certified otolaryngologists were interviewed to determine their typical evaluation protocol. The average cost of an evaluation totaled $1706.18, with a range of $112.56 to $3439.52. Otolaryngologists with more years of experience tended to pursue briefer and less expensive evaluations. The charts of 187 patients with a diagnosis of vocal paralysis from 1983 to 1991 were reviewed, of which 113 were evaluable. Eighty-four of these 113 (74%) were unilateral. In 48 of 84 cases (57%), the cause was apparent at the time of diagnosis. In 36 of 84 cases (43%), an evaluation was necessary. A diagnosis was achieved in 27 of these 36 instances (75%), with the most useful test being a chest roentgenogram (n = 13, 48%). The most common cause of unilateral vocal cord paralysis in our series was neoplasm (n = 34, 40%), followed by surgical trauma (n = 29, 35%). In no instance was a malignancy discovered subsequent to the initial evaluation. The most cost-efficient, inclusive diagnostic evaluation of unilateral vocal cord paralysis involves a stepwise progression through the tests that are most likely to yield a diagnosis, with endoscopy reserved for those cases in which simpler, less invasive tests have not indicated a cause.

Adult↗

Pediatric vocal cord paralysis.

Pediatric vocal cord paralysis accounts for approximately 10% of all congenital laryngeal lesions. Early detection of these neurogenic disorders is based upon a high index of suspicion and is important to prevent catastrophes during periods of acute respiratory embarrassment. This paper reviews the symptoms, etiology and management of unilateral and bilateral vocal cord paralysis as it pertains to this age group. A case is presented of a neonate with vocal cord paralysis and associated hydrocephalous and meningomyelocele to illustrate many of the problems associated with pediatric laryngeal paralysis.

Abnormalities, Multiple↗

[Evaluation of ventilation parameters based on flow volume loop in patients with unilateral vocal cord paralysis].

The vocal cord paralysis as a multidisciplinary problem requires commitment of different medical specialities. The diagnostic difficulties and necessity of laryngoscopic evaluation in cases suspected of vocal cord paralysis were pointed out. The analysis of ventilation parameters (flow-volume loop) was presented. The significant usefulness of inspiratory parameters, especially in upper airway obstruction was emphasized. The most useful parameters and coefficients were shown. Based on another authors data the criteria of airway obstruction classification were presented. The flow volume loop was found as a uniquely suited to the examination of upper airway obstruction. According to this examinations the unilateral vocal cord paralysis was defined as a variable extrathoracic obstruction which does not influence ventilation significantly.

Adult↗

Respiratory distress in a pregnant woman with congenital vocal cord paralysis.

BACKGROUND: Vocal cord paralysis is one of the most common congenital laryngeal lesions. Hoarseness and dysphonia are common in unilateral cases. Stridor and respiratory distress are seen in bilateral cases. CASE: A 33-year-old primigravida with bilateral congenital vocal cord paralysis presented in the third trimester with a 2-week history of bronchitis and progressive shortness of breath. She developed stridor, her respiratory status deteriorated, and she was intubated with difficulty. She went into cardiac arrest, was resuscitated and placed on a ventilator, and a tracheotomy was performed. Her condition improved, she remained stable until 38 weeks, and was delivered by cesarean. CONCLUSION: Congenital vocal cord paralysis may result in life-threatening respiratory distress during pregnancy. Tracheotomy placement may be useful in the management of these patients.

Adult↗

Carbon dioxide laser cordectomy in the management of bilateral vocal cord paralysis.

Bilateral vocal cord paralysis is a rare but major complication of thyroid surgery. Since 1983, patients with bilateral cord paralysis have been managed in this department using the carbon dioxide laser. Six patients with bilateral cord paralysis secondary to thyroid surgery underwent partial cordectomy and arytenoidectomy. Two patients were operated on with tracheostomy tubes in situ, and both were successfully decannulated. In the remaining four patients, ventilation was maintained during anaesthesia using a Venturi jet ventilation system. None of these patients required a perioperative tracheostomy. Adequate airway improvement and satisfactory voice quality were achieved. Follow-up ranged from 6 to 17 months.

Adult↗

Thyroplasty type I for unilateral vocal cord paralysis.

Unilateral vocal cord paralysis may occur with trauma, neoplasms, mechanical or central nervous system dysfunction, or following extensive aortic and mediastinal vascular surgery or thyroidectomy. Thyroplasty type I is a form of laryngeal framework surgery (ie, phonosurgery) used to treat unilateral vocal cord paralysis. A silicone implant is placed inside a surgically created window in the thyroid cartilage and pushes the paralyzed cord medially, allowing the moving cord to touch the paralyzed cord and close the opening. The procedure is performed under monitored local anesthesia with sedation so the patient can phonate during the procedure. Airway compromise is the main complication associated with this procedure.

Contraindications↗

Outcome and changing cause of unilateral vocal cord paralysis.

Unilateral vocal cord paralysis (UVCP) is relatively common, and previously, thyroidectomy used to be the leading cause. We retrospectively reviewed 98 cases of UVCP. The left vocal cord was involved in 70% of the cases and the right vocal cord in 30%. The cause was neoplastic in 32%, surgical in 30%, idiopathic in 16%, traumatic in 11%, central in 8%, and infectious in 3% of the cases. Only 4 cases were the result of thyroid surgery. Evaluation consisted of a review of the history, a physical examination, and computerized scanning or magnetic resonance imaging, as needed. The functional recovery rate as related to the cause was as follows: surgery 31%, idiopathic 19%, traumatic 18%, and neoplastic 0%. Thirty-five percent of patients required medialization laryngoplasty or Teflon injection. Lung and skull base tumors and their surgical treatment are the most common causes of UVCP.

Adolescent↗

Vocal cord injection in children with unilateral vocal cord paralysis.

Unilateral vocal cord paralysis (UVCP) in children is uncommon and rarely leads to serious sequelae. However, on rare occasions, it can present with severe aspiration and dysphonia. Several therapeutic techniques have been used in adults with UVCP, but the reported alternatives in children have been much more limited. Observation and speech therapy are the standard treatment. We describe three children with UVCP and severe aspiration who were treated with vocal cord injection. The treatment indications, clinical courses, and outcomes of the three cases are detailed. The injection of vocal cords in children is discussed, with an emphasis on those aspects unique to the management of UVCP in pediatric patients. Alternative surgical treatment modalities are also presented. Vocal cord injection is an effective and viable therapeutic option for the management of UVCP in certain pediatric patients with severe aspiration and dysphonia.

Bronchiolitis↗