scholarly journals Objective Assessment of Porcine Voice Acoustics for Laryngeal Surgical Modeling

2021 ◽  
Vol 11 (10) ◽  
pp. 4489
Author(s):  
Patrick Schlegel ◽  
Kirsten Wong ◽  
Mamdouh Aker ◽  
Yazeed Alhiyari ◽  
Jennifer Long
Keyword(s):  
Objective Assessment ◽  
Voice Quality ◽  
Spectral Energy ◽  
Surgical Interventions ◽  
Laryngeal Surgery ◽  
Post Surgery ◽  
Laryngeal Injury ◽  
Voice Outcome ◽  
Mini Pigs

Pigs have become important animal models in voice research. Several objective parameters exist to characterize the pig voice, but it is not clear which of them are sensitive to the impaired voice quality after laryngeal injury or surgery. In order to conduct meaningful voice research in pigs, it is critical to have standard functional voice outcome measures that can distinguish between normal and impaired voices. For this reason, we investigated 17 acoustic parameters before and early after surgery in three Yucatan mini pigs. Four parameters showed consistent changes between pre- and post-surgery recordings, mostly related to decreased spectral energy in higher frequencies after surgery. We recommend two of these, 50% spectral energy quartile (Q50) and Flux, for objective functional voice assessment of pigs undergoing laryngeal surgery. The long-term goal of this process is to enable quantitative voice outcome tracking of laryngeal surgical interventions in porcine models.

Voice outcome after vocal fold injection augmentation with carboxymethyl cellulose versus calcium hydroxyapatite

2020 ◽  
Vol 134 (3) ◽  
pp. 263-269 ◽  
Author(s):  
J T Cohen ◽  
L Benyamini
Keyword(s):  
Carboxymethyl Cellulose ◽  
Vocal Fold ◽  
Voice Quality ◽  
Calcium Hydroxyapatite ◽  
Vocal Fold Paralysis ◽  
Glottic Insufficiency ◽  
Laryngeal Surgery ◽  
Voice Outcome ◽  
Vocal Fold Injection ◽  
Sulcus Vocalis

AbstractBackgroundVocal fold injection augmentation is a recognised treatment modality for glottic insufficiency. Causes of glottal closure insufficiency include vocal fold paralysis, paresis, atrophy, sulcus vocalis, scarring and vocal fold deficiency after laryngeal surgery. A variety of materials exist for injection augmentation. This study aimed to compare voice improvement after injection augmentation between two injectable materials: carboxymethyl cellulose and calcium hydroxyapatite.MethodThis retrospective study included 66 consecutive patients with glottic insufficiency who underwent injection augmentation.ResultsAmong the patients who received their first injection augmentation with carboxymethyl cellulose and their second injection augmentation with calcium hydroxyapatite (n = 28), voice quality improved significantly after both injection augmentations. No significant differences were observed in any of the objective and subjective voice quality measurements examined following carboxymethyl cellulose and calcium hydroxyapatite injections.ConclusionVoice improvement after injection augmentation depends mainly on the improvement of glottic closure, rather than the injection material.

Objective Assessment of the Nasal Airway in Unilateral Cleft Lip and Palate - a Long-term Study

2009 ◽  
pp. 091202121239062
Author(s):  
Maria Mani ◽  
Staffan Morén ◽  
Ornolfur Thorvardsson ◽  
Olafur Jakobsson ◽  
Valdemar Skoog ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Objective Assessment ◽  
Nasal Airway ◽  
Term Study ◽  
Long Term Study

The interaction of long-term voice quality with the realization of focus

2016 ◽  
Author(s):  
Irena Yanushevskaya ◽  
Ailbhe Ní Chasaide ◽  
Christer Gobl
Keyword(s):  
Voice Quality

scholarly journals Collagen analogs with phosphorylcholine are inflammation-suppressing scaffolds for corneal regeneration from alkali burns in mini-pigs

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Fiona C. Simpson ◽  
Christopher D. McTiernan ◽  
Mohammad Mirazul Islam ◽  
Oleksiy Buznyk ◽  
Philip N. Lewis ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Nerve Regeneration ◽  
Graft Failure ◽  
Corneal Stroma ◽  
Advanced Stage ◽  
Term Survival ◽  
Corneal Regeneration ◽  
Type V ◽  
Mini Pigs

AbstractThe long-term survival of biomaterial implants is often hampered by surgery-induced inflammation that can lead to graft failure. Considering that most corneas receiving grafts are either pathological or inflamed before implantation, the risk of rejection is heightened. Here, we show that bioengineered, fully synthetic, and robust corneal implants can be manufactured from a collagen analog (collagen-like peptide-polyethylene glycol hybrid, CLP-PEG) and inflammation-suppressing polymeric 2-methacryloyloxyethyl phosphorylcholine (MPC) when stabilized with the triazine-based crosslinker 4-(4,6-Dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride. The resulting CLP-PEG-MPC implants led to reduced corneal swelling, haze, and neovascularization in comparison to CLP-PEG only implants when grafted into a mini-pig cornea alkali burn model of inflammation over 12 months. Implants incorporating MPC allowed for faster nerve regeneration and recovery of corneal sensation. CLP-PEG-MPC implants appear to be at a more advanced stage of regeneration than the CLP-PEG only implants, as evidenced by the presence of higher amounts of cornea-specific type V collagen, and a corresponding decrease in the presence of extracellular vesicles and exosomes in the corneal stroma, in keeping with the amounts present in healthy, unoperated corneas.

scholarly journals The Long-Term Follow-Up of Patients with Cystine Stones: A Single-Center Experience for 13 Years

2021 ◽  
Vol 10 (7) ◽  
pp. 1336
Author(s):  
Toshifumi Takahashi ◽  
Shinya Somiya ◽  
Katsuhiro Ito ◽  
Toru Kanno ◽  
Yoshihito Higashi ◽  
...  
Keyword(s):  
Surgical Intervention ◽  
Median Number ◽  
Small Sample ◽  
Age At Diagnosis ◽  
Surgical Interventions ◽  
Significant Difference ◽  
Long Term Follow Up ◽  
Cystine Stones

Introduction: Cystine stone development is relatively uncommon among patients with urolithiasis, and most studies have reported only on small sample sizes and short follow-up periods. We evaluated clinical courses and treatment outcomes of patients with cystine stones with long-term follow-up at our center. Methods: We retrospectively analyzed 22 patients diagnosed with cystine stones between January 1989 and May 2019. Results: The median follow-up was 160 (range 6–340) months, and the median patient age at diagnosis was 46 (range 12–82) years. All patients underwent surgical interventions at the first visit (4 extracorporeal shockwave lithotripsy, 5 ureteroscopy, and 13 percutaneous nephrolithotripsy). The median number of stone events and surgical interventions per year was 0.45 (range 0–2.6) and 0.19 (range 0–1.3) after initial surgical intervention. The median time to stone events and surgical intervention was 2 years and 3.25 years, respectively. There was a significant difference in time to stone events and second surgical intervention when patients were divided at 50 years of age at diagnosis (p = 0.02, 0.04, respectively). Conclusions: Only age at a diagnosis under 50 was significantly associated with recurrent stone events and intervention. Adequate follow-up and treatment are needed to manage patients with cystine stones safely.

scholarly journals Evolution of voice after transoral laser cordectomy for precancerous lesions and early glottic cancer

2021 ◽  
Author(s):  
Lucia Staníková ◽  
Karol Zeleník ◽  
Martin Formánek ◽  
Jana Seko ◽  
Radana Walderová ◽  
...  
Keyword(s):  
Precancerous Lesions ◽  
Voice Quality ◽  
Quality Parameters ◽  
Substantial Improvement ◽  
Glottic Cancer ◽  
Early Glottic Cancer ◽  
Post Surgery ◽  
Group I ◽  
Group Ii ◽  
Laser Cordectomy

Abstract Purpose To evaluate voice quality evolution after a transoral laser cordectomy (TLC) for precancerous lesions and early glottic cancer. Methods This prospective study enrolled 18 patients scheduled for TLC for high-grade dysplasia, Tis, T1, and T2 glottic squamous cell cancers, from May 2017 to March 2020. Patients were grouped according to the extent of TLC: Group I (n = 11, 61.1%): unilateral subepithelial or subligamental cordectomy; Group II (n = 7, 38.9%): unilateral transmuscular, total, or extended cordectomy. Voice quality parameters, including dysphonia grade (G), roughness (R), breathiness (B), maximal phonation time (MPT), jitter, and shimmer, were evaluated before, and at 6 weeks and 6 months after the TLC. Results In Group I, the degree of G and R items remained without substantial improvement 6 weeks after surgery; however, improved above the pre-surgery level up to 6 months after surgery. The MPT, jitter, and shimmer did not change significantly at 6 weeks or 6 months post-TLC. In Group II, G, R, and B remained significantly impaired even 6 months post-surgery. Jitter, and shimmer worsened at 6 weeks, but reached preoperative levels at 6 months post-surgery. MPT was significantly worse at 6 weeks and remained deteriorated at 6 months post-surgery. All measured parameters were significantly worse in Group II than in Group I at 6 weeks and 6 months post-surgery. No patient required a phonosurgical procedure. Conclusion After a TLC, voice quality evolution depended on the extent of surgery. It did not improve at 6 weeks post-surgery. Improvements in less extent cordectomies occurred between 6 weeks and 6 months post-surgery. Understanding voice development over time is important for counseling patients when considering phonosurgical procedures.

scholarly journals Long-term postoperative opioid prescription after cholecystectomy or gastric by-pass surgery: a retrospective observational study

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Viktoria Larsson ◽  
Cecilia Nordenson ◽  
Pontus Karling
Keyword(s):  
Observational Study ◽  
Postoperative Period ◽  
Medical Records ◽  
Early Postoperative Period ◽  
Retrospective Observational Study ◽  
Opioid Use ◽  
Opioid Prescription ◽  
Post Surgery ◽  
Gastric By Pass

Abstract Objectives Opioids are commonly prescribed post-surgery. We investigated the proportion of patients who were prescribed any opioids 6–12 months after two common surgeries – laparoscopic cholecystectomy and gastric by-pass (GBP) surgery. A secondary aim was to examine risk factors prior to surgery associated with the prescription of any opioids after surgery. Methods We performed a retrospective observational study on data from medical records from patients who underwent cholecystectomy (n=297) or GBP (n=93) in 2018 in the Region of Västerbotten, Sweden. Data on prescriptions for opioids and other drugs were collected from the patients` medical records. Results There were 109 patients (28%) who were prescribed opioids after discharge from surgery but only 20 patients (5%) who still received opioid prescriptions 6–12 months after surgery. All 20 of these patients had also been prescribed opioids within three months before surgery, most commonly for back and joint pain. Only 1 out of 56 patients who were prescribed opioids preoperatively due to gallbladder pain still received prescriptions for opioids 6–12 months after surgery. Although opioid use in the early postoperative period was more common among patients who underwent cholecystectomy, the patients who underwent GBP were more prone to be “long-term” users of opioids. In the patients who were prescribed opioids within three months prior to surgery, 8 out of 13 patients who underwent GBP and 12 of the 96 patients who underwent cholecystectomy were still prescribed opioids 6–12 months after surgery (OR 11.2; 95% CI 3.1–39.9, p=0,0002). Affective disorders were common among “long-term” users of opioids and prior benzodiazepine and amitriptyline use were significantly associated with “long-term” opioid use. Conclusions The proportion of patients that used opioids 6–12 months after cholecystectomy or GBP was low. Patients with preoperative opioid-use experienced a significantly higher risk of “long-term” opioid use when undergoing GBP compared to cholecystectomy. The indication for being prescribed opioids in the “long-term” were mostly unrelated to surgery. No patient who was naïve to opioids prior surgery was prescribed opioids 6–12 months after surgery. Although opioids are commonly prescribed in the preoperative and in the early postoperative period to patients with gallbladder disease, there is a low risk that these prescriptions will lead to long-term opioid use. The reasons for being prescribed opioids in the long-term are often due to causes not related to surgery.

Long-term voice quality outcome after thyroidectomy without laryngeal nerve injury: a prospective 10 year follow up study

2021 ◽  
pp. 106109
Author(s):  
Evelien D'haeseleer ◽  
Wouter Huvenne ◽  
Hubert Vermeersch ◽  
Iris Meerschman ◽  
Kissel Imke ◽  
...  
Keyword(s):  
Nerve Injury ◽  
Voice Quality ◽  
Laryngeal Nerve ◽  
Follow Up Study ◽  
Laryngeal Nerve Injury

scholarly journals Body dysmorphic disorder in children and young people

2021 ◽  
Vol 30 (3) ◽  
pp. 160-164
Author(s):  
Chloe Watson ◽  
Sasha Ban
Keyword(s):  
Social Media ◽  
Body Image ◽  
Young People ◽  
Suicide Prevention ◽  
Adolescent Development ◽  
Body Dysmorphic Disorder ◽  
Children And Young People ◽  
Surgical Interventions ◽  
Positive Body Image

The incidence of body dysmorphic disorder (BDD) in young people is increasing. Causes of BDD are related to the prevalence of social media and adolescent development, especially the role that brain neuroplasticity has on influencing perception. There are long-term impacts of BDD, including depression and suicide. Prevention and promotion of positive body image are part of the nurse's role; treatment can prevent unnecessary aesthetic surgical interventions.

Beyond implantation effect? Long-term seizure reduction and freedom following intracranial monitoring without additional surgical interventions

2020 ◽  
Vol 111 ◽  
pp. 107231
Author(s):  
Jennifer Percy ◽  
Hitten Zaveri ◽  
Robert B. Duckrow ◽  
Jason Gerrard ◽  
Pue Farooque ◽  
...  
Keyword(s):  
Seizure Reduction ◽  
Surgical Interventions
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