The role of fat grafting on contracted breast implant capsules: A retrospective comparative histological and immunohistochemical study

xlomafota13 shared this article with you from Inoreader The role of fat grafting on contracted breast implant capsules: A retrospective comparative histological and immunohistochemical study Via Journal of plastic, reconstructive & aesthetic surgery : JPRAS J Plast Reconstr Aesthet Surg. 2021 Oct 19:S1748-6815(21)00472-1. doi: 10.1016/j.bjps.2021.09.035. Online ahead of print. ABSTRACT Capsular contracture, a common complication of breast implant reconstruction following postmastectomy radiotherapy (PMRT), represents a challenge for plastic surgeons. Regenerative surgery with multiple autologous fat grafts (lipobed) before replacing the implant has been proven to be a satisfactory approach in the radio-damaged breast. Currently, in literature, there are no data available on the histological features of irradiated capsules after regenerative surgery. We enrolled 80 patients after immediate subpectoral alloplastic breast reconstruction, with indication for revision surgery due to grade IV capsular contracture developed after PMRT. Forty patients were undergoing multiple fat grafting (lipobed group, mean age 48) and 40 patients were not undergoing multiple fat grafting (non-regenerative surg ery (NRS) group, mean age 49). The removed capsules were addressed to histological and immunohistochemical assessment. The capsules of the lipobed group patients compared with NRS group patients showed: a lower mean thickness (602.17 versus 670.43 µm; P = 0.013), a lower collagen fiber alignment (median value of angle deviation: 30.34 versus 18.38; P = 0.001), a lower immunohistochemical positivity for myofibroblasts (α-smooth muscle actin [α-SMA] expression: 12.5% versus 52.5%; P = 0.00), a higher immunohistochemical positivity for estrogen receptor-β (ER-β; 80% versus 20%; P = 0.00), and a lower immunohistochemical positivity for estrogen receptor-α (ER-α; 53.3% versus 16.7%; P = 0.00). The histological and immunohistochemical differences found are possibly due to alterations in the extracellular microenvironment determined by grafted fat. PMID:34838502 | DOI:10.1016/j.bjps.2021.09.035 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Post headshake nystagmus: further correlation with other vestibular test results

xlomafota13 shared this article with you from Inoreader Post headshake nystagmus: further correlation with other vestibular test results Via http://link.springer.com/journal/405,European archives of oto-rhino-laryngology,The European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino Eur Arch Otorhinolaryngol. 2021 Nov 28. doi: 10.1007/s00405-021-07155-z. Online ahead of print. ABSTRACT BACKGROUND: It is generally accepted that headshake nystagmus (HSN) is generated from an asymmetrical peripheral vestibular input and a correlation exists between HSN and canal paresis. There have been limited reports, however, how HSN correlates with the more recently introduced tests of vestibular function. AIMS/OBJECTIVES: To evaluate the correlation between HSN and unilateral weakness on caloric testing, high-frequency vestibulo-ocular reflex (VOR) function on video head impulse testing (VHIT) and otolith function determined by vestibular evoked myogenic potentials (VEMPs). METHODS: A retrospective study of all patients who underwent complete vestibular function testing at our tertiary referral center from 2016 to 2019 was performed. Demographic data, clinical diagnosis (where available), the results of video-nystagm ography, vHIT, and VEMPs were evaluated. RESULTS: Of the 1499 patients in the study period, 101 (6.7%) had HSN. Vestibular test abnormalities were more common in patients with HSN. The sensitivity of HSN for underlying pathology was low in comparison with vestibular testing. However, HSN demonstrated a high specificity. CONCLUSIONS AND SIGNIFICANCE: HSN generation is likely more complex than caloric-induced nystagmus, probably due to additional variables within the vestibular system. HSN may provide clinicians with additional information concerning high-frequency VOR function involving lateral semicircular and otolith dysfunction. PMID:34839406 | DOI:10.1007/s00405-021-07155-z View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Interface assembly of specific recognition gripper wrapping on activated collagen fiber for synergistic capture effect of iodine

xlomafota13 shared this article with you from Inoreader Interface assembly of specific recognition gripper wrapping on activated collagen fiber for synergistic capture effect of iodine Via radioactive iodine Colloids Surf B Biointerfaces. 2021 Nov 19:112216. doi: 10.1016/j.colsurfb.2021.112216. Online ahead of print. ABSTRACT Efficient capture of radioactive iodine (129I, 131I) is of great significance in spent fuel treatment. In this paper, a new adsorbent named Catechin@ACF was successfully prepared through interface assembly of specific recognition gripper with plant polyphenols (catechin) on activated collagen fiber (ACF), and the catechin membrane with specif ic grip on iodine was successfully constructed on the surface of ACF. The results showed that the adsorbent assembled catechin membrane was rich in aromatic rings, hydroxyl groups and imine adsorption sites, and possessed specific recognition and capture characteristics of iodine. Moreover, the as-prepared Catechin@ACF showed excellent capture capacity for iodine vapor and iodine in organic solution with the maximum capture capacity of 2122.68 mg/g and 258.29 mg/g, respectively. In iodine-cyclohexane solution, the adsorption process was in according with the Pseudo first order kinetic and Langmuir isothermal model. In addition, the specific recognition and capture mechanism analysis indicated that the aromatic rings, phenolic hydroxyl groups and imine groups in the catechin membrane were the specific and effective grippers for iodine, and finally iodine formed a stable conjugated system with the adsorbent in the form of I- and I3-. Therefore, the as- prepared specific iodine capturer Catechin@ACF was expected to play a vital role in the capture of radioactive iodine in spent fuel off-gas because of its specific recognition, high capture capacity, large-scale preparation, and environment-friendly. PMID:34838421 | DOI:10.1016/j.colsurfb.2021.112216 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Omitting axillary lymph node dissection after positive sentinel lymph node in the post-Z0011 era: Compliance with NCCN and ASCO clinical guidelines and Z0011 criteria in a large prospective cohort

xlomafota13 shared this article with you from Inoreader Omitting axillary lymph node dissection after positive sentinel lymph node in the post-Z0011 era: Compliance with NCCN and ASCO clinical guidelines and Z0011 criteria in a large prospective cohort Via Association française pour l'étude du cancer Bull Cancer. 2021 Nov 24:S0007-4551(21)00442-2. doi: 10.1016/j.bulcan.2021.09.018. Online ahead of print. ABSTRACT PURPOSE: In the ACOSOG Z0011 trial, patients with primary breast cancer and 1-2 tumor-involved sentinel lymph nodes (SLNs) undergoing breast-conserving surgery had no oncological outcome benefit after axillary lymph node dissection (ALND), despite a relevant rate of non-SLN metastases of 27%. According to the St Gallen expert consensus, and NCCN and ASCO clinical guidelines, ALND may be avoided in patients who meet all ACOSOG Z0011 inclusion criteria. This recommendation can also be extended to patients undergoing mastectomy, with 1 or 2 positive SLNs and an indication for chest wall radiation, in whom axillary radiotherapy can be proposed as an alternative to completion ALND. The aim of this study was to assess non-compliance with the NCCN and ASCO clinical guidelines and Z0011 criteria, namely the rate of performance of completion ALND when it was not recommended, and the rate of failure to perform completion ALND when recommended. METHODS: Data were prospectively analysed from T1-2 N0 breast cancer patients undergoing an SLN procedure and treated at the Georges-François Leclerc Cancer Center between November 2015 and May 2017. Factors associated with non-compliance treatment decisions were identified using logistic regression. RESULTS: Among 563 patients included, 122 (21.7%) had at least one positive SLN. ALND was not recommended for 76 patients (62.3%), and was recommended in 46 patients (37.7%). The rate of non-compliant treatment was 32% (39/122) overall: ALND was performed despite not being recommended in 16/76 patients (21.1%) and was not performed in 50% of patients in whom it was recommended (23/46). By multivariate analyses, lymphovascular invasion ((Odds Ratio (OR)=6.1; 95% confidence interval (CI): 1.4-26.7; P=0.02)) and only one SLN removed (OR=9.1; 95%CI: 2.2-33.3; P=0.00 2) were associated with performance of completion ALND when not recommended. Conversely, >1 SLN removed (OR=5.1; 95%CI: 1.2-22.2; P=0.03) was associated with the failure to perform completion ALND when recommended. CONCLUSION: Almost one third of patients with invasive breast cancer receive treatment that is not in compliance with recommendations regarding completion ALND. PMID:34838310 | DOI:10.1016/j.bulcan.2021.09.018 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

A consecutive series of targeted muscle reinnervation (TMR) cases for relief of neuroma and phantom limb pain: UK perspective

xlomafota13 shared this article with you from Inoreader A consecutive series of targeted muscle reinnervation (TMR) cases for relief of neuroma and phantom limb pain: UK perspective Via Journal of plastic, reconstructive & aesthetic surgery : JPRAS J Plast Reconstr Aesthet Surg. 2021 Oct 22:S1748-6815(21)00511-8. doi: 10.1016/j.bjps.2021.09.068. Online ahead of print. ABSTRACT BACKGROUND: Studies have suggested that targeted muscle reinnervation (TMR) can improve symptoms of neuroma pain (NP) and phantom limb pain (PLP) in patients. OBJECTIVES: Our primary objective was to measure changes in NP and PLP levels following TMR surgery at 4-time points (baseline, 3, 6- and 12-months postoperatively). Secondary aims included identification of the character and rate of any surgical complications and patients' satisfaction with TMR. METHODS: A retrospective review of outcomes of 36 patients who underwent TMR surgery to treat intractable NP and/or PLP after major amputation of an upper (UL) or lower limb (LL) at a single centre in London, UK over 7 years. The surgical techniques, complications, and satisfaction with TMR are described. RESULTS: Forty TMR procedures were p erformed on 36 patients. Thirty patients had complete data for NP and PLP levels at all pre-defined time points. Significant improvements (p<0.01) in both types of pain were observed for both upper and LL amputees. However, there were varying patterns of recovery. For example, UL amputees experienced worsening of PLP in the first few months post-operatively whereas surgical complications were more common in LL cases. Patients were overwhelmingly satisfied with the improvements in their symptoms (90%). CONCLUSIONS: TMR surgery appeared to relieve both NP and PLP although the retrospective nature of this study limits the strength of this conclusion. However, complication rates were high, and it is crucial for surgeons and patients to fully understand the course and outcomes of this novel surgery prior to undertaking treatment. PMID:34840118 | DOI:10.1016/j.bjps.2021.09.068 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Microsurgical Lymphovenous Anastomosis for Pelvic Lymphoceles after Gynecological Cancer Surgery

xlomafota13 shared this article with you from Inoreader Microsurgical Lymphovenous Anastomosis for Pelvic Lymphoceles after Gynecological Cancer Surgery Via Journal of plastic, reconstructive & aesthetic surgery : JPRAS J Plast Reconstr Aesthet Surg. 2021 Oct 22:S1748-6815(21)00497-6. doi: 10.1016/j.bjps.2021.09.056. Online ahead of print. ABSTRACT BACKGROUND: Pelvic lymphoceles are the most common complications after pelvic lymphadenectomy. Microsurgical procedures have attracted attention as an alternative treatment for lymphoceles. Here, we report six cases of refractory lymphoceles that were successfully treated using lymphovenous anastomosis (LVA). METHODS: Six patients underwent surgery for gynecological cancers and developed pelvic lymphoceles, which did not respond to conventional treatment. We mainly performed LVA on the ipsilateral lower limbs, although some procedures were also performed on the contralateral limbs. The change in the lymphocele volume after LVA was examined using computed tomography and compared using the Wilcoxon test. RESULTS: Five of the six refractory lymphocele cases were successfully treated using LVA, and the remaining case exhibited an 87% reduction in lymphocele volume. The average numbers of anastomoses were 6.7 on the ipsilateral side and 2.8 on the contralateral side (the median numbers: 6 [range: 5-9] vs. 3 [range: 1-4], P = 0.034). The average lymphocele volume decreased significantly from 414.0 mL preoperatively to 8.0 mL postoperatively (the median lymphocele volume: 255.8 [range: 61.5-1,329.2] vs. 0 [range: 0-47.7], P = 0.0313). CONCLUSION: We found that microsurgical treatment was potentially effective for lymphoceles that did not respond to conventional treatment. PMID:34840117 | DOI:10.1016/j.bjps.2 021.09.056 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Pneumothorax following plastic and reconstructive breast surgery

xlomafota13 shared this article with you from Inoreader Pneumothorax following plastic and reconstructive breast surgery Via Journal of plastic, reconstructive & aesthetic surgery : JPRAS J Plast Reconstr Aesthet Surg. 2021 Nov 15:S1748-6815(21)00574-X. doi: 10.1016/j.bjps.2021.11.030. Online ahead of print. NO ABSTRACT PMID:34840114 | DOI:10.1016/j.bjps.2021.11.030 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Using RSI and RFS scores to differentiate between reflux-related and other causes of chronic laryngitis

xlomafota13 shared this article with you from Inoreader Using RSI and RFS scores to differentiate between reflux-related and other causes of chronic laryngitis Via Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial Braz J Otorhinolaryngol. 2021 Oct 17:S1808-8694(21)00155-5. doi: 10.1016/j.bjorl.2021.08.003. Online ahead of print. ABSTRACT OBJECTIVE: To establish if the Reflux Symptom Index (RFI) and the Reflux Finding Score (RFC) can help establish the differential diagnosis in patients with distinct causes of chronic laryngopharyngitis. METHODS: A group of 102 adult patients with chronic laryngopharyngitis (Group A - 37 patients with allergic rhinitis; Group B - 22 patients with Obstructive Sleep Apnea (OSA); Group C - 43 patients with Laryngopharyngeal Reflux (LPR)) were prospectively studied. Chronic laryngitis was diagnosed based on suggestive symptoms and videolaryngoscopic signs (RSI ≥ 13 and RFS ≥ 7). Allergies were confirmed by a positive serum RAST, OSA was diagnosed with a positive polysomnography, and LPR with a positive impedance-PH study. Discriminant function analysis was used to determine if the combination of RSI and RFS scores could differentiate between groups. RESULTS: Patients with respiratory allergies and those with LPR showed similar and significantly higher RSI scores when compared to that of patients with OSA (p < 0.001); Patients with OSA and those with LPR showed similar and significantly higher RFS scores when compared to that of patients with Respiratory Allergies (OSA vs. Allergies p < 0.001; LPR vs. Allergies p < 0.002). The combination of both scores held a higher probability of diagnosing OSA (72.73%) and Allergies (64.86%) than diagnosing LPR (51.16%). CONCLUSIONS: RSI and RFS are not specific for reflux laryngitis and are more likely to induce a false diagnosis if not used with diligence. PMID:34840124 | DOI:10.1016/j.bjorl.2021.08.003 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Ectopic thymic tissue in subglottis of children: evaluation and management

xlomafota13 shared this article with you from Inoreader Ectopic thymic tissue in subglottis of children: evaluation and management Via Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial Braz J Otorhinolaryngol. 2021 Nov 5:S1808-8694(21)00179-8. doi: 10.1016/j.bjorl.2021.10.001. Online ahead of print. ABSTRACT OBJECTIVES: Ectopic thymic tissue in the subglottis is an extremely rare disease that causes airway obstruction. Few cases reported were accurately diagnosed before surgery. METHODS: A case of a 2-year-old boy with airway obstruction caused by a left subglottic mass was reported. The presentation of radiological imaging, direct laryngoscopy and bronchoscopy, pathology, and surgical management were reviewed. An extensive search in PubMed, EMBASE, Web of Science, Google Scholar, and EBSCO of English literature was performed without a limit of time. RESULTS: Besides our case, only six cases were reported since 1987. The definitive diagnosis on these patients were made with the findings of pathology, of which, five were ectopic thymus and two were ectopic thymic cysts. Our case was the only one with a cor rect suspicion preoperatively. Four cases underwent open surgical resection, and two cases underwent microlaryngeal surgery, while one deceased after emergency tracheostomy. No recurrences were found by six patients during the follow-up after successful treatments. CONCLUSION: Ectopic thymus is a rare condition, infrequently considered in the differential diagnosis of subglottic masses. Modified laryngofissure may be an effective approach to removing the subglottic ectopic thymus and reconstructing the intact subglottic mucosa. PMID:34840123 | DOI:10.1016/j.bjorl.2021.10.001 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

Pain and Opioid Consumption Following Endoscopic Sinus Surgery: A Prospective Cohort Study

xlomafota13 shared this article with you from Inoreader Pain and Opioid Consumption Following Endoscopic Sinus Surgery: A Prospective Cohort Study Via The Laryngoscope Objectives/Hypothesis Surgeons have a critical role in the current opioid epidemic, and there is a need to prospectively understand patterns of pain and opioid use among patients undergoing endoscopic sinus surgery (ESS). Study Design Prospective observational cohort. Methods This was a prospective, observational cohort study that included patients undergoing ESS from November 2019 to March 2020. Demographic data were collected at baseline, as was respondent information regarding preoperative anxiety, pain, and postoperative pain expectations. Opioid use was converted to milligram morphine equivalents (MME). All patients received 10 tablets of 5 mg oxycodone (75 MME). Patients quantified postoperative pain and opioid consumption via telephone follow-up every 48 hours. The primary outcome was total MME utilized. Results There were 91 patients included in the final cohort. Mean opioid use was 35.2 ± 47.3 MME. There were 29 (32%) patients who did not use any opioids after surgery, and six (7%) patients who required opioid refills. Postoperative opioid use was associated with increased preoperative anxiety (r = 0.41, P < .001), preoperative pain (r = 0.28, P = .007), and expectations for postoperative pain (r = 0.36, P < .001). Increased postoperative pain was only associated with increased opioid use on postoperative days 0–2 (r = 0.33, P = .001) and 3–4 (r = 0.59, P < .001). On multivariate regression, former smoking (β = 23.4 MME, SE = 10.1, 95% confidence interval [CI]: 3.3–43.5, P = .023) and anxiety (β = 35.9, SE = 10.2, 95% CI: 15.6–56.3, P < .001) were associated with increased MME. Conclusions The majority of patients have minimal opioid use after ESS, and pain appears to influence opioid use within the first 4 days after surgery. Additionally, patients with anxiety may benefit from alternative pain management strategies to mitigate opioid consumption. Level of Evidence 3 Laryngoscope, 2021 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.

The importance of vascular epithelial growth factor (VEGF) and inducible nitric oxide synthase (INOS) in rhinitis medicamentosa pathogenesis: An experimental rat model study

xlomafota13 shared this article with you from Inoreader The importance of vascular epithelial growth factor (VEGF) and inducible nitric oxide synthase (INOS) in rhinitis medicamentosa pathogenesis: An experimental rat model study Via Cellular and Molecular Biology Histol Histopathol. 2021 Nov 29:18399. doi: 10.14670/HH-18-399. Online ahead of print. ABSTRACT OBJECTIVE: Our aim in this study is to reveal the expression of Vascular Endothelial Growth Factor (VEGF) and Inducible Nitric Oxide Synthase (iNOS) in the pathogenesis of rhinitis medicamentosa (RM), which occurs as a result of the overdose and long-term use of topical nasal decongestants. METHODS: In this study, 24 Wistar albino rats were divided into two groups as experimental and control groups. In the experimental group, 50 µl of 0.05% oxymetazoline (iliadin® merck) was applied intranasally to each nostril three times a day for 2 months with the help of a micropipette. 50 µl saline was applied to the control group. At the end of the second month, the rats were examined. RM was detected in the experimental group. Then the nasal tissues of the rats were removed and fixed with 10% phosphate buffered neutral formaldehyde (pH=7.4). Nasal tissues were decalcified in Morse's solution (10% sodium citrate and 22.5% formic acid). Histopathological evaluations of the preparations were stained using Masson Trichrome (TCM) and Hematoxylin Eosin (H&E) techniques and immunohistochemical examinations of the preparations were stained with VEGF and iNOS antibodies and photographed using the Leica DM6000B microscope and the Leica Application Suite Program. RESULTS: In the RM group, we found a significant increase in VEGF and iNOS expression in the nasal mucosa compared to the control group (p<0.001). We also observed the main histopathological changes in the nasal mucosa under a light microscope, including squamous metaplasia in the epithelium of the tunica mucosa, submucosal perivascular edema and degeneration of the submucosal glands. CONCLUSIONS: According to these results, increased expression levels of VEGF and iNOS play an important role in rebound swelling in RM pathogenesis. PMID:34842278 | DOI:10.14670/HH-18-399 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.