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Ear, Nose, & Throat Journal Feb 2021To investigate the indications, efficacy, safety, and outcomes of potassium-titanyl-phosphate (KTP) laser procedures for treatment of laryngeal disease.
OBJECTIVE
To investigate the indications, efficacy, safety, and outcomes of potassium-titanyl-phosphate (KTP) laser procedures for treatment of laryngeal disease.
METHODS
PubMed, Cochrane Library, and Scopus were searched for studies providing information about the indications, efficacy, and safety of both in-office and operative suspension microlaryngoscopy KTP laser procedure in treatment of laryngeal disease. Diagnostic criteria and clinical outcome evaluation of included studies were analyzed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses criteria.
RESULTS
Of the initial screened 140 papers, 17 met our inclusion criteria. Six papers involved KTP laser procedures for benign and malignant vocal fold lesions in suspension microlaryngoscopy only, 10 papers focused on only in-office KTP laser procedures for benign vocal fold lesions, and 1 paper included both in-office and suspension microlaryngoscopy procedures. The following lesions may be considered as indications for KTP laser procedures: Reinke's edema, sulcus vocalis, vocal fold hemorrhage, polyp, granuloma, cyst, scar, papillomatosis, dysplasia, leukoplakia, and early vocal fold malignancies. Irrespective of the types of procedure (in-office vs suspension microlaryngoscopy), the KTP laser is associated with a low complication rate and overall good vocal fold vibration recovery. There is an important heterogeneity among studies concerning laser settings, indications, and outcomes used for the assessment of treatment effectiveness. There are no controlled studies directly comparing KTP laser with other lasers (ie, carbon dioxide laser).
CONCLUSION
The use of KTP laser procedures for treatment of laryngeal disease has increased over the past decade, especially for office-based management of vocal fold lesions. Future controlled studies are needed to compare the safety and outcomes of the KTP laser to other techniques.
Topics: Ambulatory Surgical Procedures; Humans; Laryngeal Diseases; Laryngoscopy; Lasers, Solid-State; Otolaryngology; Prospective Studies; Retrospective Studies; Treatment Outcome; Vocal Cords; Voice Quality
PubMed: 31928082
DOI: 10.1177/0145561319899183 -
Neurology Oct 2019Multiple system atrophy (MSA) is a neurodegenerative disorder characterized by a combination of autonomic failure, cerebellar ataxia, and parkinsonism. Laryngeal stridor...
Multiple system atrophy (MSA) is a neurodegenerative disorder characterized by a combination of autonomic failure, cerebellar ataxia, and parkinsonism. Laryngeal stridor is an additional feature for MSA diagnosis, showing a high diagnostic positive predictive value, and its early occurrence might contribute to shorten survival. A consensus definition of stridor in MSA is lacking, and disagreement persists about its diagnosis, prognosis, and treatment. An International Consensus Conference among experts with methodological support was convened in Bologna in 2017 to define stridor in MSA and to reach consensus statements for the diagnosis, prognosis, and treatment. Stridor was defined as a strained, high-pitched, harsh respiratory sound, mainly inspiratory, occurring only during sleep or during both sleep and wakefulness, and caused by laryngeal dysfunction leading to narrowing of the rima glottidis. According to the consensus, stridor may be recognized clinically by the physician if present at the time of examination, with the help of a witness, or by listening to an audio recording. Laryngoscopy is suggested to exclude mechanical lesions or functional vocal cord abnormalities related to different neurologic conditions. If the suspicion of stridor needs confirmation, drug-induced sleep endoscopy or video polysomnography may be useful. The impact of stridor on survival and quality of life remains uncertain. Continuous positive airway pressure and tracheostomy are both suggested as symptomatic treatment of stridor, but whether they improve survival is uncertain. Several research gaps emerged involving diagnosis, prognosis, and treatment. Unmet needs for research were identified.
Topics: Consensus Development Conferences as Topic; Humans; Multiple System Atrophy; Prognosis; Respiratory Sounds; Treatment Outcome
PubMed: 31570638
DOI: 10.1212/WNL.0000000000008208 -
Journal of Vascular Surgery Oct 2019Coverage of the left subclavian artery (LSA) is often required to achieve complete proximal sealing during thoracic endovascular aortic repair. However, whether LSA... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Coverage of the left subclavian artery (LSA) is often required to achieve complete proximal sealing during thoracic endovascular aortic repair. However, whether LSA revascularization should be performed remains controversial.
METHODS
MEDLINE, Embase, and Cochrane databases were systematically searched to identify all the relevant studies. A random-effects model was applied to pool the effect measures. Dichotomous data were presented using an odds ratio (OR).
RESULTS
There were 32 studies included for qualitative analysis and 31 studies for quantitative analysis. We found that patients who underwent LSA revascularization had a significantly decreased risk of spinal cord ischemia (OR, 0.62; 95% confidence interval [CI], 0.41-0.92; P = .02; I = 0%), cerebrovascular accident (OR, 0.63; 95% CI, 0.42-0.95; P = .03; I = 22%), and left upper extremity ischemia (OR, 0.18; 95% CI, 0.09-0.36; P < .00001; I = 0%). However, no significant differences were found in the risk of paraplegia (OR, 0.91; 95% CI, 0.55-1.51; P = .71; I = 0%) and 30-day mortality (OR, 0.89; 95% CI, 0.59-1.36; P = .60; I = 21%) between the groups of patients with and without LSA revascularization.
CONCLUSIONS
Revascularization of the LSA is associated with decreased risks of cerebrovascular accident, spinal cord ischemia, and left upper limb ischemia in thoracic endovascular aortic repair with LSA coverage at the cost of higher local complications, such as possible vocal cord paresis.
Topics: Aorta, Thoracic; Aortic Diseases; Blood Vessel Prosthesis; Blood Vessel Prosthesis Implantation; Endovascular Procedures; Humans; Postoperative Complications; Risk Assessment; Risk Factors; Subclavian Artery; Treatment Outcome
PubMed: 31176636
DOI: 10.1016/j.jvs.2019.03.022 -
The Laryngoscope Sep 2019To investigate the role of laryngopharyngeal reflux (LPR) in the development of benign lesions of the vocal folds (BLVF).
OBJECTIVES
To investigate the role of laryngopharyngeal reflux (LPR) in the development of benign lesions of the vocal folds (BLVF).
METHODS
PubMed, Cochrane Library, and Scopus were searched by three independent investigators for articles published between January 1990 and November 2018 providing substantial information about the role of LPR in the development of nodules, polyps, cysts, Reinke's edema, and sulcus vocalis. Inclusion, exclusion, diagnostic criteria and clinical outcome evaluation of included studies were analyzed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses criteria.
RESULTS
Of the 155 relevant publications, 42 studies were included. Thirty-five were clinical studies and seven were experimental research studying the impact of reflux on vocal fold tissue. Only seven clinical studies utilized objective LPR diagnoses (pH monitoring), suggesting an association between LPR and the development of nodules, polyps, and Reinke's edema. These studies were characterized by a substantial heterogeneity due to discrepancies in inclusion/exclusion criteria, diagnostic methods, and clinical outcome evaluation. The few basic science studies on this topic support that LPR creates an environment that may predispose to BLVF through changes in defense mechanisms of the vocal folds, cell-to-cell dehiscence, inflammatory reaction of the vocal folds, and reaction to phonotrauma.
CONCLUSIONS
Caustic mucosal injury from LPR could cause increased susceptibility of the vocal fold mucosa to injury and subsequent formation of nodules, polyps, or Reinke's edema. However, the heterogeneity and the low number of high-quality studies limit the ability to draw definitive conclusions. Future clinical and experimental studies are needed to better identify the role of reflux in development of BLVF. Laryngoscope, 129:E329-E341, 2019.
Topics: Clinical Trials as Topic; Humans; Laryngeal Diseases; Laryngeal Edema; Laryngopharyngeal Reflux; Polyps; Prospective Studies; Retrospective Studies; Vocal Cords
PubMed: 30892725
DOI: 10.1002/lary.27932