Αρχειοθήκη ιστολογίου

Παρασκευή 24 Ιουνίου 2022

Tone Enhancement Electro‐Fiberscope Combined with Strobe Light Source and Re‐analysis Past Images‐Tone Enhancement Dynamic Stroboscope

alexandrossfakianakis shared this article with you from Inoreader
Tone Enhancement Electro-Fiberscope Combined with Strobe Light Source and Re-analysis Past Images-Tone Enhancement Dynamic Stroboscope

Tone enhancement electro fiberscope combined with strobe light source is benefit for dynamic observation of vocal fold vibration, mucosal waves and voice, it also may be effective for early detection of cases of glottal cancer rather than ordinate stroboscopic examination or simple NBI observation. Laryngoscope, 2022


View on Web

Prognostic Utility of Tumor Stage versus American Thyroid Association Risk Class in Thyroid Cancer

alexandrossfakianakis shared this article with you from Inoreader
Prognostic Utility of Tumor Stage versus American Thyroid Association Risk Class in Thyroid Cancer

The prognostic strengths of American Joint Committee on Cancer (AJCC) staging and American Thyroid Association (ATA) risk classification in well-differentiated thyroid cancer were evaluated. AJCC staging served as a more prognostic model for patient survival compared to ATA risk classification. The greater predictive strength of AJCC staging became less pronounced when multiple additional demographic and clinical factors were considered.


Objective

To evaluate the prognostic strengths of American Joint Committee on Cancer (AJCC) staging and American Thyroid Association (ATA) risk classification in well-differentiated thyroid cancer (DTC), and their implications in guiding medical decision-making and epidemiological study designs.

Methods

The 2004–2017 National Cancer Database was queried for DTC patients. Cox proportional hazards (CPH) and Kaplan–Meier analyses modeled patient mortality and overall survival, respectively. Each CPH model was evaluated by its concordance index, measure of explained randomness (MER), Akaike information criterion (AIC), and area under receiver operating characteristic curve (AUC).

Results

Overall, 134,226 patients were analyzed, with an average age of 48.1 ± 15.1 years (76.9% female). Univariate CPH models using AJCC staging demonstrated higher concordance indices, MERs, and AUCs than those using ATA risk classification (all p < 0.001). Multivariable CPH models using AJCC staging demonstrated higher concordance indices (p = 0.049), MERs (p = 0.046), and AUCs (p = 0.002) than those using ATA risk classification. The AICs of multivariable AJCC staging and ATA risk models were 7.564 × 104 and 7.603 × 104, respectively. AJCC stage I tumors were associated with greater overall survival than those classified as ATA low risk, whereas AJCC stages II-III and stage IV tumors demonstrated worse survival than ATA intermediate- and high-risk tumors, respectively (all p < 0.001).

Conclusion

AJCC staging may be a more predictive system for patient survival than ATA risk. The prognostic utility of these two systems converges when additional demographic and clinical factors are considered. AJCC staging was found to classify patients across a wider range of survival patterns than the ATA risk stratification system.

Level of Evidence

4 Laryngoscope, 2022

View on Web

Changes in Cough Airflow and Acoustics After Injection Laryngoplasty

alexandrossfakianakis shared this article with you from Inoreader
Changes in Cough Airflow and Acoustics After Injection Laryngoplasty

We explored the following hypotheses in a cohort of patients undergoing injection laryngoplasty: (1) glottic insufficiency affects voluntary cough airflow dynamics and restoring glottic competence may improve parameters of cough strength, (2) cough strength can be inferred from cough acoustic signal, and (3) glottic competence changes cough sounds and correlates with spectrogram morphology. Our study thus indicates that injection laryngoplasty may help avert aspiration in patients with glottic insufficiency by improving cough effectiveness and that improved cough airflow measures may be tracked with cough sounds.


Objective/Hypothesis

We explored the following hypotheses in a cohort of patients undergoing injection laryngoplasty: (1) glottic insufficiency affects voluntary cough airflow dynamics and restoring glottic competence may improve parameters of cough strength, (2) cough strength can be inferred from cough acoustic signal, and (3) glottic competence changes cough sounds and correlates with spectrogram morphology.

Study Type/Design

Prospective interventional study.

Methods

Subjects with glottic insufficiency secondary to unilateral vocal fold paresis, paralysis, or atrophy, and scheduled for injection laryngoplasty completed an instrumental assessment of voluntary cough airflow using a pneumotachometer and a protocolized voluntary cough sound recording. A Wilcoxon signed-rank test was used to compare the differences between pre- and post-injection laryngoplasty in airflow and acoustic measures. A Spearman rank-order correlation was used to evaluate the association between airflow and acoustic cough measures.

Results

Twenty-five patients (13F:12M, mean age 68.8) completed voluntary cough airflow measurements and 22 completed cough sound recordings. Following injection laryngoplasty, patients had a statistically significant decreased peak expiratory flow rise time (PEFRT) (mean change: −0.03 s, SD: 0.06, p = 0.04) and increased cough volume acceleration (mean change: 13.1 L/s2, SD: 33.9, p = 0.03), suggesting improved cough effectiveness. Correlation of cough acoustic measures with airflow measures showed a weak relationship between PEFRT and acoustic energy (coefficient: −0.31, p = 0.04) and peak power density (coefficient: −0.35, p = 0.02).

Conclusions

Our study thus indicates that injection laryngoplasty may help avert aspiration in patients with glottic insufficiency by improving cough effectiveness and that improved cough airflow measures may be tracked with cough sounds.

Level of Evidence

3 Laryngoscope, 2022

View on Web

VEGF and VEGFR family members are expressed by neoplastic cells of NF1-associated tumors and may play an oncogenic role in malignant peripheral nerve sheath tumor growth through an autocrine loop

alexandrossfakianakis shared this article with you from Inoreader

1-s2.0-S1092913422X00038-cov150h.gif

Publication date: Available online 23 June 2022

Source: Annals of Diagnostic Pathology

Author(s): Benjamin Bonsang, Laurent Maksimovic, Pascale Maille, Nadine Martin, Ingrid Laurendeau, Eric Pasmant, Ivan Bièche, Justin Deschamps, Pierre Wolkenstein, Nicolas Ortonne

View on Web

Αναζήτηση αυτού του ιστολογίου

! # Ola via Alexandros G.Sfakianakis on Inoreader