Κυριακή 13 Ιουνίου 2021

Prepancreatic common hepatic artery arising from superior mesenteric artery: an exceptional but important finding during pancreaticoduodenectomy

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Surg Radiol Anat. 2021 Jun 12. doi: 10.1007/s00276-021-02786-7. Online ahead of print.

ABSTRACT

PURPOSE: The hepato-mesenteric trunk is an extremely rare condition in which the common hepatic artery (CHA) originates from the superior mesenteric artery (SMA). Usually, CHA passes behind the head of the pancreas. A systematic review was performed to provide guidelines for the perioperative management of patients with this anatomical variation who underwent a pancreaticoduodenec tomy (PD). A case report was also included.

METHODS: A systematic search of the literature was conducted and the manuscript was structured following point-by-point the PRISMA guidelines. The risk of bias within individual studies was assessed using the Joanna Briggs Institute Critical Appraisal Checklist tools. Case report was structured according to the CARE guidelines.

RESULTS: After an initial selection of 141 titles, 9 articles were included in the study (n = 10 patients). A postoperative surgical complication which required a reintervention occurred only one time. In four patients, CHA had a posterior position relative to pancreas, while in three cases, it was anterior. The remaining three patients had an intrapancreatic course. The CHA was resected in two patients, with an end-to-end reconstruction or using the splenic artery stump. In only three patients, a preoperative multidisciplinary presentation was performed and in four cases, the CHA variation was not descr ibed by radiologists in formal CT-scan reports.

CONCLUSION: Although there are no definitive guidelines, improvements in the preoperative knowledge of such a rare anatomical variation may ensure better postoperative outcomes, avoiding intraoperative accidents and life-threatening postoperative complications.

PMID:34117902 | DOI:10.1007/s00276-021-02786-7

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Cortical Responses to Vowel Sequences in Awake and Anesthetized States: A Human Intracranial Electrophysiology Study

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Cereb Cortex. 2021 Jun 12:bhab168. doi: 10.1093/cercor/bhab168. Online ahead of print.

ABSTRACT

Elucidating neural signatures of sensory processing across consciousness states is a major focus in neuroscience. Noninvasive human studies using the general anesthetic propofol reveal differential effects on auditory cortical activity, with a greater impact on nonprimary and auditory-related areas than primary auditory cortex. This study used intracranial electroencephalography to examine cortical responses to vowel sequences during induction of general anesthesia with propofol. Subjects were adult neurosurgical patients with intracranial electrodes placed to identify epileptic foci. Data were collected before electrode removal surgery. Stimuli were vowel sequences presented in a target detection task during awake, sedated, and unresponsive states. Averaged evoked potentials (AEPs) and high gamma (70-150 Hz) power were measured in auditory, audito ry-related, and prefrontal cortex. In the awake state, AEPs were found throughout studied brain areas; high gamma activity was limited to canonical auditory cortex. Sedation led to a decrease in AEP magnitude. Upon LOC, there was a decrease in the superior temporal gyrus and adjacent auditory-related cortex and a further decrease in AEP magnitude in core auditory cortex, changes in the temporal structure and increased trial-to-trial variability of responses. The findings identify putative biomarkers of LOC and serve as a foundation for future investigations of altered sensory processing.

PMID:34117741 | DOI:10.1093/cercor/bhab168

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Pignat's vertical partial laryngectomy with crico-hyoido-epiglotto-plasty

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Eur Arch Otorhinolaryngol. 2021 Jun 11. doi: 10.1007/s00405-021-06858-7. Online ahead of print.

ABSTRACT

PURPOSE: Pignat's partial laryngectomy with crico-hyoido-epiglotto-plasty (CHEPL) is a vertical laryngectomy with resection of the anterior portion of the thyroid cartilage and reconstruction with a wires net and the subhyoid muscles. The aim of this retrospective study was to evaluate and analyze oncologic and functional outcomes in patients affected by laryngeal squamous cell carcinoma and treated with Pignat's partial laryngectomy.

METHODS: Seventy patients with cT1-cT3 glottic cancer were surgically treated with Pignat's technique.

EXCLUSION CRITERIA: invasion of posterior cricoid arch, more than 3 mm under glottis, of more than one arytenoid, of posterior portion of thyroid cartilage, of the suprahyoid epiglottis. Overall survival, disease free survival, rates of decannulation and enteral feeding were analyzed.

< p>RESULTS: 23 (32.9%) pT1, 37 (52.9%) pT2, 5 (7.1%) pT3, 5 (7.1%) pT4a, 64 (91.5%) pN0, 5 (7.1%) pN1, 1 (1.4%) pN2. Adjuvant treatment was administered to 13 patients (18.6%). All patients had tracheotomy. Five year OS and DFS were 81.66 and 77.95%, respectively. A statistically significant DFS difference was observed between early and late stages. Five year local control was 81.16%. Five year larynx preservation rate was 89.16%. Median decannulation time was 12 days. Median duration of enteral nutrition was 16 days. All patients achieved efficient phonation.

CONCLUSION: Pignat's partial laryngectomy with CHEPL can represent an alternative to horizontal supracricoid laryngectomy to achieve laryngeal preservation. Good oncologic and functional outcomes are possible as long as indications are followed.

PMID:34117535 | DOI:10.1007/s00405-021-06858-7

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Treatment of juvenile recurrent parotitis with irrigation therapy without anesthesia

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Eur Arch Otorhinolaryngol. 2021 Jun 12. doi: 10.1007/s00405-021-06928-w. Online ahead of print.

ABSTRACT

PURPOSE: No standardized treatment regimen exists for juvenile recurrent parotitis (JRP). The investigators hypothesized that irrigation with saline only without local anesthesia will be an effective and beneficial option.

METHODS: Using a retrospective study design, a series of children with typical symptoms of JRP who were treated with at least one irrigation therapy were evaluated. This treatment consisted of irrigation of the affected gland with 3-10 ml saline solution without any type of anesthesia. The outcome variables were patient/parent satisfaction, frequency and duration of acute JRP episodes, and the need for antibiotics before and after irrigation therapy.

RESULTS: The case series was composed of six boys aged 3.3-7.7 years who experienced one to eight sessions of irrigation therapy. The period of follow-up was 9-64 months. We observed a total resolution of symptoms in two children and an improvement in the other four. No relevant side effects were seen.

CONCLUSION: Our results suggest that irrigation therapy is a reasonable, simple, and minimally invasive treatment alternative for JRP. In contrast to sialendoscopy or sialography, there is no need for general anesthesia or radiation exposure.

PMID:34117898 | DOI:10.1007/s00405-021-06928-w

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Swallowing Exercise During Head and Neck Cancer Treatment: Results of a Randomized Trial

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Dysphagia. 2021 Jun 11. doi: 10.1007/s00455-021-10320-5. Online ahead of print.

ABSTRACT

The diagnosis and treatment of head and neck cancer (HNC) can have substantial impact on swallowing function, nutritional balance, physical function and quality of life (QoL). Early initiated swallowing exercises are hypothesized to improve swallowing function in HNC patients. The aim was to investigate the effects of swallowing exercises and progressive resistance training (PRT) during radioth erapy on swallowing function, physical function and QoL in patients with pharynx-, larynx-, oral cavity cancer or unknown primary compared to usual care. In a multi-centre RCT participants were assigned to (a) twice-weekly PRT and daily swallowing exercises throughout treatment or (b) usual care. Outcomes were measured at end of treatment and 2, 6 and 12 months after. Primary outcome was penetration aspiration score (PAS). Data were analysed on an "intention-to-treat" basis by GEE logistic regression model, linear mixed effects model and cox regression. Of 371 invited HNC patients, 240 (65%) enrolled. Five participants were excluded. At 12 months follow-up, 59 (25%) participants were lost. Analyses showed significant effect on mouth opening, QoL, depression and anxiety at 12 months when comparing intervention to non-active controls. The trial found no effect on swallowing safety in HNC undergoing radiotherapy, but several positive effects were found on secondary outcomes when compar ing to non-active controls. The intervention period may have been too short, and the real difference between groups is too small. Nevertheless, the need to identify long-lasting intervention to slow down or avoid functional deteriorations is ever more crucial as the surviving HNC population is growing.

PMID:34117531 | DOI:10.1007/s00455-021-10320-5

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Bleeding complications in patients with squamous cell carcinoma of the head and neck

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Abstract

Hemorrhage in recurrent and/or metastatic (R/M) head and neck squamous cell carcinoma (HNSCC) may be attributed to chemotherapy and local tumor irradiation. Evidence of the relationship between hemorrhage in R/M HNSCC and targeted therapies, including epidermal growth factor receptor (EGFR) and vascular endothelial growth factor (VEGF) inhibitors, or immune checkpoint inhibitors, is limited. We aimed to identify epidemiological and clinical data related to the occurrence of hemorrhage in R/M HNSCC and to explore its relationship with various therapies. We describe information obtained from literature searches as well as data extracted from a commercial database and a database from the author's institution (Istituto Nazionale dei Tumori of Milan). Evidence suggests that most bleeding events in R/M HNSCC are minor. Clinical trial safety data do not identify a causal association between hemorrhage and anti-EGFR agents or immune checkpoint inhibitors. In contrast, anti-VEGF agents are associated with increased, and often severe/fatal, hemorrhagic complications.

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Sinonasal adenocarcinoma: A population‐based analysis of demographic and socioeconomic disparities

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Abstract

Background

Sinonasal adenocarcinoma (SNAC) is a rare tumor. The impact of health disparities on survival, stage at presentation, and utilization of surgery is not well understood in patients with SNAC.

Methods

The Surveillance, Epidemiology, and End Results database was queried for cases of SNAC from 1973 to 2015. Cases were analyzed to assess for disparities in presentation, treatment, and survival.

Results

SNAC was identified in 630 patients. In a multivariate model of overall survival, an age increase of 10 years (Hazard Ratio (HR) = 1.37, p < 0.001), male sex (HR = 1.26, p = 0.045), and more recent decade of diagnosis (HR = 0.74, p < 0.001) were significantly related to time-to-death. There is a higher rate of SNAC-related death in counties with more rural populations (p = 0.027).

Conclusion

Future interventions targeting rural and less well-educated populations may improve care with the goal of increasing the span of healthy life and reducing survival disparities related to SNAC.

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Expression of cathepsins B and D by cancer stem cells in head and neck metastatic malignant melanoma

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We have previously demonstrated cancer stem cell (CSC) subpopulations in head and neck metastatic malignant melanoma (HNmMM), and the expression of components of the renin–angiotensin system (RAS) by these CSCs. Cathepsins B, D and G are involved in carcinogenesis and constitute bypass loops of the RAS . This study investigated the expression and localization of cathepsins B, D and G, in relation to these CSCs. Immunohistochemical staining demonstrated expression of cathepsins B, D and G in HNmMM sections from all 20 patients. Western blotting confirmed the presence of cathepsins B and D proteins in all six HNmMM tissue samples and four HNmMM-derived primary cell lines. RT-qPCR showed transcript expression of cathepsins B, D and G in all six HNmMM tissue samples, and cathepsins B and D but not cathepsin G in all four HNmMM-derived primary cell lines. Enzymatic activity assays demonstrated cathepsins B and D were active in all six HNmMM tissue samples. Immunofluorescence staining performed on two of the HNmMM tissue samples demonstrated expression of cathepsins B and D by the CSCs, and cathepsin G by cells within the peritumoral. Our novel findings suggest the possibility of targeting these CSCs by modulation of paracrine RAS signaling. Received 14 January 2021 Accepted 2 May 2021 Supplemental Digital Content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's website, www.melanomaresearch.com. Correspondence to Swee T. Tan, MBBS, FRACS, PhD, Gillies McIndoe Research Institute, PO Box 7184, Newtown, Wellington 6242, New Zealand, Tel: +64 (0) 4 2820366; e-mail: swee.tan@gmri.org.nz Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.
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Nasal Mucociliary Clearance in Prolonged Tracheostomy Patients: A Prospective Case–Control Study

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Abstract

Prolonged tracheostomy bypasses the upper airways leading to absence or reduction of nasal airflow. This altered nasal physiology not only impairs olfaction but also may cause mucociliary dysfunction and consequent nasal crusting and rhinosinusitis.To objectively evaluate the extent of nasal mucociliary impairment in patients with prolonged duration of tracheostomy.This is a prospective case–control study done in a tertiary care center wherein the nasal mucocilary function was assessed by saccharin test in patients who were tracheostomized for a period of more than 4 weeks and the saccharin transit time (time taken to appreciate the sweet taste after endoscopic insertion of saccharin pellet on anterior end of inferior turbinate) was compared by the same test in age and sex matched healthy individuals. The saccharin transit time in the two groups was statistically analyzed using student t-test. Mean saccharin transit time in 30 patients with prolonged trach eostomy was 934.97 s with a standard deviation of 75.95 s whereas in 30 controls, the meantime was 447.4 s with a standard deviation of 63.22 s, which was statistically significant (p < 0.001). Conclusion Prolonged duration of tracheostomy leads to impaired nasal mucociliary clearance, which in turn could cause chronic rhinosinusitis.

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Impact of Adjuvant Medical Therapies on Surgical Outcomes in Idiopathic Subglottic Stenosis

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Objectives/Hypothesis

Adjuvant medications including proton pump inhibitors (PPI), antibiotics (trimethoprim/sulfamethoxazole [TMP-SMX]), and inhaled corticosteroids (ICS) may be prescribed for patients with idiopathic subglottic stenosis (iSGS). We describe medication use with endoscopic dilation (ED) or endoscopic resection with medical treatment (ERMT) and evaluate impact on outcomes.

Study Design

International, prospective, 3-year multicenter cohort study of 810 patients with untreated, newly diagnosed, or previously treated iSGS.

Methods

Post hoc secondary analysis of prospectively collected North American Airway Collaborative data on outcomes linked with adjuvant medication utilization. Primary outcome was time to recurrent operation, evaluated using Kaplan–Meier curves and Cox regression analysis. Secondary outcomes of change in peak expiratory flow (PEF) and clinical chronic obstructive pulmonary disease questionnaire (CCQ) score over 12 months were compared.

Results

Sixty-one of 129 patients undergoing ED received PPI (47%), and 10/143 patients undergoing ED received ICS (7%). TMP-SMX was used by 87/115 patients (76%) undergoing EMRT. PPI use in the ED group did not affect time to recurrence (hazard ratio [HR] = 1.00, 95% confidence interval [CI]: 0.53–1.88; P = .99) or 12-month change in PEF (L/min) (median [interquartile range], 12.0 [10.7–12.2] vs. 8.7 [−5.1 to 24.9]; P = .59), but was associated with 12-month change in CCQ (−0.05 [−0.97 to 0.75] vs. −0.50 [−1.60 to 0.20]; P = .04). ICS did not affect outcome measures. TMP-SMX use in ERMT did not affect time to recurrence (HR = 0.842, 95% CI: 0.2345–3.023; P = .79), PEF at 12 months (75 [68–89] vs. 81 [68–89]; P = .92), or 12-month change in CCQ (0.20 [−1.05 to 0.47] vs. −0.30 [−1.00 to 0.10]; P = .45).

Conclusion

There is no standard practice for prescribing adjuvant medications. These data do not support that adjuvant medications prolong time to recurrence or increase PEF. Patients with iSGS and gastroesophageal reflux disease may experience some symptom benefit with PPI.

Level of evidence

Level 3 Laryngoscope, 2021

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Predictors of Respiratory Dysfunction at Diagnosis of Robin Sequence

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Objectives/Hypothesis

Robin sequence (RS) consists of associated micrognathia, glossoptosis, and respiratory dysfunction, with or without cleft palate. Studies on how different patient characteristics impact the severity of respiratory dysfunction are scarce and contradictory; this study investigates how different features affect respiratory obstruction severity at diagnosis of RS in controlled analysis.

Study Design

Retrospective cohort study that enrolled 71 RS patients under 90 days old who received care in our institution from 2009 to 2020.

Methods

The primary outcome, respiratory dysfunction, was categorized into four severity groups and analyzed using a multinomial logistic regression model that considered age, sex, mandible length, cleft palate, syndromic diagnosis, other airway anomalies, and degree of glossoptosis.

Results

Mandible length, syndromic diagnosis, and Yellon grade 3 glossoptosis were related to poorer respiratory outcomes (need for respiratory support). In univariate analysis, for each additional 1 mm of mandible length at diagnosis, a mean reduction of 28% in the risk of needing respiratory support was observed (OR = 0.72; 0.58–0.89); syndromic diagnosis and grade 3 glossoptosis also raised the risk (OR = 6.50; 1.59–26.51 and OR = 12.75; 1.03–157.14, respectively). In multivariate analysis, only mandible length significantly maintained its effects (OR = 0.73; 0.56–0.96), a 27% reduction.

Conclusions

Mandible length was an independent predictor for more severe respiratory dysfunction in RS patients, with larger mandibles showing protective effects. Syndromic diagnosis and Yellon grade 3 glossoptosis are also likely to be associated with poorer respiratory outcomes, although this was not demonstrated in multivariate analysis.

Level of Evidence

4 Laryngoscope, 2021

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