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Indian Journal of Otolaryngology and... Feb 2024Leukoplakia is a macroscopic morphological term for thick white or grey mucosal patches that can represent various histologic diagnostic entities ranging from...
Contact Endoscopic Surface Vascular and Epithelial Morphology in Leukoplakia and Carcinoma of the Vocal Cords: Vascular and morphological changes of vocal folds in leukoplakia and cancer.
Leukoplakia is a macroscopic morphological term for thick white or grey mucosal patches that can represent various histologic diagnostic entities ranging from hyperplasia to malignancy. Aim was the study morphology of the superficial mucosa and microvascular network of the vocal cords in patients with suspected glottic squamous cell carcinoma (SCC) using contact endoscopy (CE). Seventy-nine patients (21 female, 58 male), with a mean age of 57.5 years ± 7.12 (range, 32-73 years), were prospectively enrolled and evaluated. Of these patients, 58 had leukoplakia (Group A/41 males and 17 females, with a mean age of 53.7 years ± 6.65), and 21 (Group B/ 17males and 4 females/ with a mean age of 60.5 years ± 6.04) had malignant lesions (pT1, = 6; p T2, = 8; pT3, = 8; Group B), as proven by the results of the histological examination. Further, 79 non-smokers (control group-group C) were studied. CE imaging findings were classified into five types (I to V) based on the features of the mucosal intra-epithelial capillary loops. CE findings were correlated to the histologic findings. A separate analysis involving smoking status was done. The CE-based intraepithelial papillary capillary loop classification score was strongly correlated with the histological findings. Age was strongly associated with both malignancy and bilateral involvement. Smoking habits didn't significantly differ between patients with unilateral and bilateral SCC. CE imaging of the vocal cord mucosal capillaries may be useful for the early detection of glottic SCC and pre-cancerous lesions.
PubMed: 38440476
DOI: 10.1007/s12070-023-04183-5 -
Annals of Surgical Treatment and... Mar 2024Recurrent laryngeal nerve injury after thyroid surgery may cause vocal cord palsy (VCP), which leads to unexpected additional costs. In recent years, intraoperative...
PURPOSE
Recurrent laryngeal nerve injury after thyroid surgery may cause vocal cord palsy (VCP), which leads to unexpected additional costs. In recent years, intraoperative neural monitoring (IONM) has been used to lower the incidence rate of VCP. This study aimed to analyze postoperative management costs for patients with papillary thyroid carcinoma (PTC).
METHODS
We analyzed the medical records of patients who underwent lobectomy for PTC from September 2018 to August 2019 at The Catholic University of Korea, Seoul St. Mary's Hospital. A total of 411 patients were enrolled and all the patients had voice examinations. We investigated the total costs in the IONM and non-IONM groups during a maximum 1-year follow-up and calculated the additional costs due to VCP by subtraction of the mean values in each group.
RESULTS
The incidence rate of VCP was 3.9% (16 of 411). Extrathyroidal extension was related to VCP in Cox regression tests and accounted for 3.2% (13 of 411). VCP rate did not show a significant difference between the IONM and non-IONM groups (4.1% 3.8%, P = 0.883). Total costs for postoperative management were higher in the IONM group than in the non-IONM group (US $328.2 ± $220.1 $278.7 ± $141.4, P < 0.05). However, the additional costs due to VCP were significantly lower in the IONM group than in the non-IONM group ($474.1 ± $150.3 $568.9 ± $367.6, P < 0.005).
CONCLUSION
The use of IONM can mitigate the increase in costs by saving additional expenses associated with VCP.
PubMed: 38435494
DOI: 10.4174/astr.2024.106.3.140 -
Cureus Feb 2024Ortner's syndrome, a rare condition characterized by hoarseness due to left recurrent laryngeal nerve palsy caused by cardiovascular structural compression, is typically...
Ortner's syndrome, a rare condition characterized by hoarseness due to left recurrent laryngeal nerve palsy caused by cardiovascular structural compression, is typically associated with an enlarged left atrium secondary to conditions like mitral stenosis. However, recent studies propose additional causes, including compression between the dilated pulmonary artery and the aorta. We present a case of a 54-year-old male with Ortner's syndrome secondary to severe mitral regurgitation and pulmonary hypertension. Our patient presented with a one-month history of progressive dyspnea and hoarseness. Diagnostic imaging revealed cardiac enlargement, left vocal cord paralysis, and severe mitral valve pathology. A transesophageal echocardiogram revealed mitral valve prolapse and severe flail motion of the anterior leaflet. Further assessments through catheterizations confirmed severely elevated right ventricular systolic pressures and pulmonary hypertension. Attempts at mitral valve replacement were hindered by persistently elevated pulmonary pressures, necessitating transfer for specialized care. Our case highlights the broad differentials for hoarseness, emphasizing rare cardiovascular origins such as Ortner's syndrome, involving compression of the left recurrent laryngeal nerve. Early identification is essential, often necessitating comprehensive head and neck examination and radiological studies. While management depends on nerve injury duration, a timely intervention targeting the underlying cardiovascular pathology, including appropriate medical therapy and surgical approaches, can potentially alleviate or reverse nerve damage. Furthermore, our case underscores the significance of initiating guideline-directed medical therapy early in chronic cardiovascular conditions to mitigate cardiac remodeling and prevent complications like left recurrent laryngeal nerve palsy. Timely identification and targeted management of underlying cardiovascular etiologies are crucial in preventing Ortner's syndrome.
PubMed: 38435206
DOI: 10.7759/cureus.53463 -
Zhongguo Yi Xue Ke Xue Yuan Xue Bao.... Feb 2024Objective To compare the success rates of two methods for endobronchial intubation:the left-sided double-lumen tube(DLT) rotated 90° counter-clockwise with the patient... (Randomized Controlled Trial)
Randomized Controlled Trial
Objective To compare the success rates of two methods for endobronchial intubation:the left-sided double-lumen tube(DLT) rotated 90° counter-clockwise with the patient head at the mid positon and the tube rotated 180° counter-clockwise with the patient head turned to the right. Methods Six hundred and forty-eight patients were enrolled in this study,who were to undergo elective thoracic surgery by left-sided DLT intubation in the Peking Union Medical College Hospital from December 2021 to June 2022.They were randomized into a 90° group and a 180° group,with 324 patients in each group.In the 90° group,with the patient head kept at the mid position,the left-sided DLT was advanced until the bronchial cuff passed the vocal cords and then rotated 90° counter-clockwise.In the 180°group,with the left mandible angle of each patient in the straight line with the sternum,the tube was advanced until the bronchial cuff passed the vocal cords and then rotated 180° counter-clockwise.The intubation success rate and the intubation-related complications such as carina mucosal injuries were compared between the two groups. Results The 648 patients included 336 males and 312 females,with the age ranging from 39.0 to 75.0 years old and the average age of(54.6±9.0) years old.The success rate of first intubation was 80.3% in the 90° group and 75.0% in the 180° group,which showed no significant difference(=0.109).The success rate of second intubation was higher in the 180° group than in the 90° group(<0.001).The rate of carina mucosal injuries was 23.8% in the 90° group and 25.6% in the 180° group,which showed no significant difference(=0.585). Conclusions Compared with the conventional method(90°),the intubation of the left-sided DLT rotated 180° counter-clockwise with the patient head turned to the right cannot improve the success rate of the first intubation.However,it could improve the success rate of reintubation as a remedy.
Topics: Female; Male; Humans; Middle Aged; Adult; Aged; Intubation, Intratracheal; Bronchi; Elective Surgical Procedures; Hospitals; Trachea
PubMed: 38433629
DOI: 10.3881/j.issn.1000-503X.15809 -
Scandinavian Journal of Surgery : SJS :... Mar 2024Studies on the outcomes of parathyroid surgery are scarce. The aim was to report the outcomes and to study the association between pre- and peri-operative information...
BACKGROUND AND OBJECTIVE
Studies on the outcomes of parathyroid surgery are scarce. The aim was to report the outcomes and to study the association between pre- and peri-operative information with the outcomes of patients operated for primary hyperparathyroidism.
METHODS
This was a retrospective, descriptive study with unselected patients treated surgically for primary hyperparathyroidism from a catchment population of 704,500 in Finland. Data were acquired from the electronic hospital registers based on parathyroid surgery procedure codes between 1 January 2017 and 31 December 2018. Preoperative data, surgical data, preoperative and postoperative laboratory values, histopathological findings, and postoperative clinical data were recorded.
RESULTS
During the 2-year study period, 149 patients with primary hyperparathyroidism were treated surgically with a 97% remission rate. Surgical complications included postoperative bleeding in two patients (1%) and vocal cord paralysis in one patient (0.6%). No postoperative infections were reported. Three patients (2%) developed postoperative hypoparathyroidism necessitating the use of alfacalcidol more than 1 month after surgery. Ionized calcium measured 0-1 days after surgery was not statistically significantly associated with remission or postoperative hypoparathyroidism. Serum parathyroid hormone (PTH) assessed 0-1 days postoperatively was associated with persistent disease, but not with postoperative hypoparathyroidism. The histopathological diagnosis was adenoma or hyperplasia in 112 patients (75%), atypical adenoma in 28 patients (19%), and carcinoma in five patients (3%). Patients with parathyroid carcinoma had higher preoperative ionized calcium and PTH values than those with adenoma or hyperplasia.
CONCLUSIONS
Most patients who were operated due to primary hyperparathyroidism achieved normocalcemia after surgery, and the frequency of complications was low. Ionized calcium taken 0-1 days after surgery was not associated with remission of hyperparathyroidism or postoperative hypoparathyroidism. High postoperative serum PTH predicted persistent disease.
PubMed: 38433618
DOI: 10.1177/14574969241228409 -
Journal of Anesthesia Jun 2024Ultrasound performed after extubation has been suggested to be useful for the diagnosis of recurrent laryngeal nerve (RLN) paralysis. However, the use of ultrasound for... (Observational Study)
Observational Study
PURPOSE
Ultrasound performed after extubation has been suggested to be useful for the diagnosis of recurrent laryngeal nerve (RLN) paralysis. However, the use of ultrasound for this purpose before extubation has not been examined. The aim of this study was to examine the versatility (interrater reliability) and usefulness of ultrasound for evaluating the movement of vocal cords before extubation.
METHODS
The subjects were 30 patients who underwent radical surgery for esophageal cancer from August 2020 to December 2021. An experienced examiner performed an ultrasound examination before and after elective extubation on the day after surgery to evaluate RLN paralysis and record videos. Bronchoscopy was then performed to make a definite diagnosis. Three anesthetists blinded to the diagnosis also evaluated the cases using the videos, and the versatility of the examination was determined using a kappa test.
RESULTS
The diagnostic accuracies of the examiner and three anesthetists were 76.7%, 50.0%, 53.3%, and 46.7%, respectively, and the kappa coefficients for the examiner with the anesthetists were 0.310, 0.502, and 0.169, respectively. The sensitivity, specificity, positive predictive value and negative predictive value for diagnosis of RLN paralysis by the examiner using ultrasound before extubation were 0.57, 0.95, 0.80, and 0.87, respectively.
CONCLUSION
These results indicate a lack of versatility of the ultrasound examination based on the low kappa coefficients. However, with an experienced examiner, ultrasound can serve as a non-invasive examination that can be performed before extubation with high accuracy and specificity for diagnosis of postoperative RLN paralysis.
Topics: Humans; Prospective Studies; Male; Female; Esophageal Neoplasms; Vocal Cord Paralysis; Aged; Middle Aged; Ultrasonography; Airway Extubation; Reproducibility of Results; Postoperative Complications; Recurrent Laryngeal Nerve; Sensitivity and Specificity
PubMed: 38430260
DOI: 10.1007/s00540-024-03315-7 -
JASA Express Letters Mar 2024Previous experimental studies suggested that restraining the vocal fold vertical motion may reduce the coupling strength between the voice source and vocal tract. In...
Previous experimental studies suggested that restraining the vocal fold vertical motion may reduce the coupling strength between the voice source and vocal tract. In this study, the effects of vocal fold vertical motion on source-filter interaction were systematically examined in a two-dimensional two-mass model coupled to a compressible flow simulation. The results showed that when allowed to move vertically, the vocal folds exhibited subharmonic vibration due to entrainment to the first vocal tract acoustic resonance. Restraining the vertical motion suppressed this entrainment. This indicates that the vertical mobility of the vocal folds may play a role in regulating source-filter interaction.
Topics: Vocal Cords; Acoustics; Motion; Vibration
PubMed: 38426891
DOI: 10.1121/10.0025124 -
Scientific Reports Feb 2024This observational study aimed to compare the glottic view between video and direct laryngoscopy for tracheal intubation in the surgical position for thyroid surgery... (Observational Study)
Observational Study
This observational study aimed to compare the glottic view between video and direct laryngoscopy for tracheal intubation in the surgical position for thyroid surgery with intraoperative neuromonitoring. Patients scheduled for elective thyroid surgery with intraoperative neuromonitoring were enrolled. After the induction of anesthesia, patients were positioned in the thyroid surgical posture with a standard inclined pillow under their head and back. An investigator assessed the glottic view using the percentage of glottic opening (POGO) scale and the modified Cormack-Lehane grade in direct laryngoscopy and then video laryngoscopy sequentially while using the same McGRATH™ MAC video laryngoscope at once, with or without external laryngeal manipulation, at the surgical position. A total of thirty-nine patients were participated in this study. Without external laryngeal manipulation, the POGO scale significantly improved during video laryngoscopy compared to direct laryngoscopy in the thyroid surgical position (60.0 ± 38.2% vs. 22.4 ± 23.8%; mean difference (MD) 37.6%, 95% confidence interval (CI) = [29.1, 46.0], P < 0.001). Additionally, with external laryngeal manipulation, the POGO scale showed a significant improvement during video laryngoscopy compared to direct laryngoscopy (84.6 ± 22.9% vs. 58.0 ± 36.3%; MD 26.7%, 95% CI = [18.4, 35.0] (P < 0.001). The superiority of video laryngoscopy was also observed for the modified Cormack-Lehane grade. In conclusion, video laryngoscopy with the McGRATH™ MAC video laryngoscope, when compared to direct laryngoscopy with it, improved the glottic view during tracheal intubation in the thyroid surgical position. This enhancement may potentially facilitate the proper placement of the electromyography tracheal tube and prevent tube displacement due to positional change for thyroid surgery.
Topics: Humans; Laryngoscopes; Laryngoscopy; Thyroid Gland; Intubation, Intratracheal; Larynx; Video Recording
PubMed: 38424153
DOI: 10.1038/s41598-024-55537-0 -
European Archives of... May 2024This study aimed to investigate the impact of the implant's vertical location during Type 1 Thyroplasty (T1T) on acoustics and glottal aerodynamics using excised canine...
OBJECTIVE
This study aimed to investigate the impact of the implant's vertical location during Type 1 Thyroplasty (T1T) on acoustics and glottal aerodynamics using excised canine larynx model, providing insights into the optimal technique for treating unilateral vocal fold paralysis (UVFP).
METHODS
Measurements were conducted in six excised canine larynges using Silastic implants. Two implant locations, glottal and infraglottal, were tested for each larynx at low and high subglottal pressure levels. Acoustic and intraglottal flow velocity field measurements were taken to assess vocal efficiency (VE), cepstral peak prominence (CPP), and the development of intraglottal vortices.
RESULTS
The results indicated that the implant's vertical location significantly influenced vocal efficiency (p = 0.045), with the infraglottal implant generally yielding higher VE values. The effect on CPP was not statistically significant (p = 0.234). Intraglottal velocity field measurements demonstrated larger glottal divergence angles and stronger vortices with the infraglottal implant.
CONCLUSION
The findings suggest that medializing the paralyzed fold at the infraglottal level rather than the glottal level can lead to improved vocal efficiency. The observed larger divergence angles and stronger intraglottal vortices with infraglottal medialization may enhance voice outcomes in UVFP patients. These findings have important implications for optimizing T1T procedures and improving voice quality in individuals with UVFP. Further research is warranted to validate these results in clinical settings.
Topics: Humans; Animals; Dogs; Larynx; Glottis; Vocal Cord Paralysis; Voice; Laryngoplasty; Acoustics; Vocal Cords
PubMed: 38421393
DOI: 10.1007/s00405-024-08519-x -
The Israel Medical Association Journal... Jan 2024Laryngopharyngeal reflux (LPR) refers to the backflow of acidic stomach content into the larynx, pharynx, and upper aerodigestive tract. The diagnosis of LPR is based on...
BACKGROUND
Laryngopharyngeal reflux (LPR) refers to the backflow of acidic stomach content into the larynx, pharynx, and upper aerodigestive tract. The diagnosis of LPR is based on the patient's history and findings of the laryngoscopy associated with LPR. Other possible manifestations consistent with LPR symptoms include laryngeal cancer, vocal fold granulomas, Reinke's space edema, and vocal polyps. In this study, we compared the characteristics of patients with LPR symptoms and incidental laryngeal findings (ILF) in the laryngoscopic evaluation to those without ILF (WILF).
OBJECTIVES
Determine the characteristics of LPR-symptomatic patients with ILF versus WILF.
METHODS
In this retrospective study, we examined 160 medical charts from patients referred to the otolaryngology clinic at Galilee Medical Center for LPR evaluation 2016-2018. The reflux symptoms index (RSI), reflux finding score (RFS), and demographics of the patient were collected. All patients with a positive RSI score for LPR (RSI > 9) were included, and the profiles of patients with versus without ILF on laryngoscopy examination were compared.
RESULTS
Of the 160 patients, 20 (12.5%) had ILF during laryngoscopy. Most had vocal cord findings such as leukoplakia (20%), polyps (15%), and nodules (20%). Hoarseness, throat clearing, swallowing difficulty, breathing difficulties, and total RSI score were significantly higher in patients with ILF.
CONCLUSIONS
Evaluation of LPR symptoms may provide otolaryngologists with a tool to identify patients with other findings on fiberoptic laryngoscopy. A laryngoscopic examination should be part of the examination of every patient with LPR to enable diagnosis of incidental findings.
Topics: Humans; Laryngopharyngeal Reflux; Retrospective Studies; Larynx; Laryngeal Edema; Laryngoscopy
PubMed: 38420641
DOI: No ID Found