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Novel binary gene expression tools like the LexA-LexAop system could powerfully enhance studies of metabolism, development, and neurobiology in Drosophila. However, specific LexA drivers for neuroendocrine cells and many other developmentally relevant systems remain limited. In a unique high school biology course, we generated a LexA-based enhancer trap collection by transposon mobilization. The initial collection provides a source of novel LexA-based elements that permit targeted gene expression in the corpora cardiaca, cells central for metabolic homeostasis, and other neuroendocrine cell types. The collection further contains specific LexA drivers for stem cells and other enteric cells in the gut, and other developmentally relevant tissue types. We provide detailed analysis of nearly 100 new LexA lines, including molecular mapping of insertions, description of enhancer-driven reporter expression in larval tissues, and adult neuroendocrine cells, comparison with established enhancer trap collections and tissue specific RNAseq. Generation of this open-resource LexA collection facilitates neuroendocrine and developmental biology investigations, and shows how empowering secondary school science can achieve research and educational goals.

Orbital exenteration is a radical oncological surgery that is usually indicated for advanced primary orbital tumors or invasion from local malignancy. We report a 5-year series from a tertiary head and neck center with particular focus on our ablative and reconstructive approach. We performed a clinicopathological review of patients referred to Guy's and St Thomas' NHS Foundation Trust Head and Neck multidisciplinary team for management input of an orbital malignancy during the period of 2013 to 2018. Cases involving local invasion from sinonasal malignancy were excluded. The reconstructive approach, perioperative complications, disease-free and overall survival were analyzed. 27 patients were identified and of those treated surgically, a radical extended orbital exenteration was required in almost half (44.4%), with squamous cell carcinoma being the most common pathology (55.6%). A concurrent neck dissection and parotidectomy were commonly performed with confirmed or suspected regional disease, or in the presence of high-risk pathological features. This approach resulted in favourable 2-year overall survival in these advanced stage cases of 84.6% and disease-free survival of 73.2%, with 92% achieving a negative surgical margin. The majority of treated patients required a free flap reconstruction, especially when an extended exenteration defect or adjuvant treatment was anticipated. The anterolateral thigh flap was the most commonly used donor site, and we present our algorithm for reconstruction of these defects. A multidisciplinary approach to advanced orbital malignancy with a comprehensive approach to surgical resection and reconstruction results in favorable oncological outcomes and addresses functional and cosmetic patient rehabilitation. [ABSTRACT FROM AUTHOR]

Absence of flexor digitorum superficialis function in the little finger is a relatively common congenital anomaly that can complicate assessment of little finger injuries. We reviewed the prevalence of unilateral and bilateral absence of superficialis function in the published literature. In appropriate studies identified (1352 people), the anomaly was unilateral in 92 individuals (6.8%) and bilateral in 81 (6.0%). If superficialis function is absent in one little finger, the probability of absence in the opposite hand is 0.64. If superficialis function is present, the probability of absence in the other little finger is 0.02 (1 in 50). Absence of little finger superficialis function in one hand is therefore not a reliable indicator of this function in the opposite hand. [ABSTRACT FROM AUTHOR]

Aim: To assess the effect of cosmetic rhinoplasty on PROMS using the FACE-Q™ tool., Methods: Between July 2020 and February 2022 all patients undergoing rhinoplasty by a single surgeon were approached pre-operatively and 6 months post-operatively to complete the Face-Q™ "Satisfaction with Nose" module. Post-operative patients were asked to complete the FACE-Q™ "Satisfaction with Outcome" module., Results: One hundred and sixty-five patients underwent rhinoplasty (147 primary, 18 revisions). Eighty two percent (n = 135) completed a pre-operative "Satisfaction with Nose" module. Thirty three percent (n = 54) completed the full pre and post- operative dataset. The mean pre-operative "Satisfaction with Nose" score was 32.88 (± 8.40). The mean post-operative "Satisfaction with Nose" score was 77.45 (SD17.26) and "Satisfaction with Outcome" score was 75.27(SD 21.88). The mean change in score 133% (SD 63%). Seventy-seven percent of patients were "very satisfied" or "somewhat satisfied" across all 10 aspects of the nose. The tip had the lowest post-operative satisfaction with 19% of patients somewhat or very dissatisfied., Conclusion: Rhinoplasty generates significant improvements in PROMS and satisfaction is high, an important positive finding for patients considering surgery. Routine collection of PROMS for rhinoplasty can inform practice and guide expectations as to its psychological impact., Competing Interests: Conflicts of interest None declared., (Copyright © 2023 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)

Objective: To describe the approach and outcomes from two cancer centres in Southern and Northern Europe during the first wave of coronavirus disease 2019 (COVID-19) of patients with head and neck cancer (HNC)., Methods: Data collection was performed on a retrospective cohort of patients surgically treated for primary HNC between March and May 2020, using data from two tertiary hospitals: the European Institute of Oncology (Milan) and Guy's & St Thomas' NHS Foundation Trust (London)., Results: We included 77 patients with HNC. More patients with COVID-19 were taking angiotensin-converting enzyme (ACE) inhibitors and had Clavien-Dindo Classification grade I compared to negative patients, respectively (60% vs 22% [ p = 0.058] and 40% vs 8% [ p = 0.025]). Multivariate logistic regression analyses confirmed our data ( p = 0.05 and 0.03, respectively). Sex and age were statistically significantly different ( p = 0.05 and <0.001 respectively), showing more male patients (75% vs 53.66%, respectively) and more elderly patients in Italy than in the United Kingdom (patients aged >63 years: 69.44% vs 29.27%)., Conclusions: This study presents a large cohort of patients with HNC with nasopharyngeal swab during the first peak of the COVID-19 pandemic in Europe. Patients with HNC with COVID-19 appeared more likely to develop postsurgical complications and to be taking ACE inhibitors. The preventive measures adopted guaranteed the continuation of therapeutic surgical intervention.

Abstract: Microvascular free tissue transfer is the criterion standard of reconstruction post-oncological resections of the head and neck region. We present a consultant's first 200 consecutive microvascular head and neck reconstructions in independent practice. A retrospective analysis of a prospectively collected database of all head and neck reconstructions performed in the first 3 years of practice was performed. These included 200 consecutive microvascular head and neck reconstructions performed by a single surgeon at a tertiary referral center. We review the results and complications in this series and discuss factors significant for successful outcomes in head and neck reconstruction. We also highlight that different parts of the surgery in the majority of cases were performed by a trainee under the supervision of the senior surgeon and thus discuss the need for training future plastic surgeons with an interest in head and neck reconstruction., Competing Interests: Conflicts of interest and sources of funding: none declared., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)

Introduction: Locally advanced nonmelanoma skin cancers of the head and neck are well described in the current literature. However, data about clinical and survival outcomes are lacking. We present survival data from a tertiary head and neck cancer unit in London., Methods: A retrospective analysis of data collected from a single institution was conducted. All patients with locally advanced cutaneous scalp carcinomas invading the skull between 2011 and 2019 were included. Data included patient demographics, tumor, comorbidities, interventions, flap survival, and metal work exposure. Survival outcomes were examined using Kaplan-Meier analysis., Results: Twenty-three patients were identified. The mean age was 72 years. Eighteen patients were male, and 5 were female. Five patients were immunosuppressed. Nineteen patients underwent outer cortex drill-down/full-thickness calvarial resection, followed by reconstruction with free tissue transfer. Six patients had titanium mesh reconstruction after segmental skull resections. Three patients underwent further surgery because of exposed metalwork. Disease-free survival at 3 years after surgery was 60%., Conclusions: Locally advanced nonmelanoma skin cancers invading the bone are sporadic. There are little published data on clinical and survival outcomes in this group. Despite the nature of these skin lesions, a high degree of local control can be obtained by extensive surgical resection, outer table drill-down, and calvarial resection. We conclude that aggressive management of the bony invasion improves disease-free survival and improves local control., Competing Interests: Conflicts of interest and sources of funding: none declared., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)

Most cancer patients receive chemotherapy at some stage of their treatment which makes improving the efficacy of cytotoxic drugs an ongoing and important goal. Despite large numbers of potent anti-cancer agents being developed, a major obstacle to clinical translation remains the inability to deliver therapeutic doses to a tumor without causing intolerable side effects. To address this problem, there has been intense interest in nanoformulations and targeted delivery to improve cancer outcomes. The aim of this work was to demonstrate how vascular endothelial growth factor receptor 2 (VEGFR2)-targeted, ultrasound-triggered delivery with therapeutic microbubbles (thMBs) could improve the therapeutic range of cytotoxic drugs. Methods: Using a microfluidic microbubble production platform, we generated thMBs comprising VEGFR2-targeted microbubbles with attached liposomal payloads for localised ultrasound-triggered delivery of irinotecan and SN38 in mouse models of colorectal cancer. Intravenous injection into tumor-bearing mice was used to examine targeting efficiency and tumor pharmacodynamics. High-frequency ultrasound and bioluminescent imaging were used to visualise microbubbles in real-time. Tandem mass spectrometry (LC-MS/MS) was used to quantitate intratumoral drug delivery and tissue biodistribution. Finally, 89 Zr PET radiotracing was used to compare biodistribution and tumor accumulation of ultrasound-triggered SN38 thMBs with VEGFR2-targeted SN38 liposomes alone. Results: ThMBs specifically bound VEGFR2 in vitro and significantly improved tumor responses to low dose irinotecan and SN38 in human colorectal cancer xenografts. An ultrasound trigger was essential to achieve the selective effects of thMBs as without it, thMBs failed to extend intratumoral drug delivery or demonstrate enhanced tumor responses. Sensitive LC-MS/MS quantification of drugs and their metabolites demonstrated that thMBs extended drug exposure in tumors but limited exposure in healthy tissues, not exposed to ultrasound, by persistent encapsulation of drug prior to elimination. 89 Zr PET radiotracing showed that the percentage injected dose in tumors achieved with thMBs was twice that of VEGFR2-targeted SN38 liposomes alone. Conclusions: thMBs provide a generic platform for the targeted, ultrasound-triggered delivery of cytotoxic drugs by enhancing tumor responses to low dose drug delivery via combined effects on circulation, tumor drug accumulation and exposure and altered metabolism in normal tissues., Competing Interests: Competing Interests: The authors have declared that no competing interest exists., (© The author(s).)

Background: The medial sural artery perforator (MSAP) flap is an ideal option for reconstruction of oral cavity defects owing to its thin and pliable nature and favorable donor site. Our study presents an assessment of functional outcomes including speech and swallowing in patients with oral cavity tumors reconstructed with MSAP flaps., Methods: Patients undergoing MSAP reconstruction for oral cavity tumors between January 2014 and January 2018 were identified from our prospective head and neck cancer database. Functional outcomes were assessed in conjunction with the Speech and Language Team with a minimum follow-up of 6 months. Function (speech and swallowing) was recorded as a performance status scale set up by the assessing health care professional., Results: A total of 38 patients underwent reconstruction with the MSAP flap over the study period. The patient cohort included 10 female patients and 28 male patients. The age range was from 30 to 78 years, with a mean age of 56.8 years. Complications included 1 flap loss and 1 donor site wound dehiscence.Most patients (84.2%) had intelligible speech at 6-month follow-up and further improvement at 1 year (92.1%). All patients resumed feeding on postoperative day 4, and only 7.8% (n = 3) of the patients required assistance with feeding at 1-year follow-up., Conclusions: The MSAP flap provides adequate small-volume replacement for oral cavity reconstructions. Our results indicate that most patients achieve a full diet with no restrictions by 1 year after reconstruction. Most of our patients demonstrated excellent speech with little or no need for repetition in conversation. Over the past few years, this has become the flap of choice for oral cavity reconstruction in our unit.

Recurrent hypopharyngeal cancer (rHPC) is a high-risk fatal disease associated with poor prognosis and high risk of complications in patients who are suitable to undergo salvage treatment. The treatment of such patients should be managed by a dedicated multidisciplinary team, most frequently a tertiary centre. and with the agreement of the patient. Close follow-up is crucial in achieving early detection and being able to treat the recurrence with curative intention. When persistent or recurrent disease is suspected, cross-sectional computed tomography imaging (CT) and positron emission tomography-CT scanning followed by panendoscopy with biopsies are the initial steps that need to be done in order to confirm diagnosis and accurate staging. The current treatment modality, which results in the best survival outcomes for rHCP is surgery. For most suitable patients, total pharyngolaryngectmy remains the best surgical modality, although open partial surgery OPS and transoral surgery are options for a small number of patients who have recurrences following treatment of an early stage disease. Free tissue transfer flaps or pedicled myocutaneous flaps will be necessary for most patients to reconstruct the excised pharynx. When making such a treatment plan it is most important to explain to each patient of the likely outcome both in terms of quantity and quality of life expectation. Many factors that are likely to increase the risk of treatment complications have been reported and are best anticipated and avoided. It is essential to perform a thorough preoperative assessment, follow a tried and trusted protocoled surgical plan and to have established enhanced recovery pathways for postoperative care that is available., (© 2019 S. Karger AG, Basel.)

Novel binary gene expression tools like the LexA-LexAop system could powerfully enhance studies of metabolism, development, and neurobiology in Drosophila However, specific LexA drivers for neuroendocrine cells and many other developmentally relevant systems remain limited. In a unique high school biology course, we generated a LexA-based enhancer trap collection by transposon mobilization. The initial collection provides a source of novel LexA-based elements that permit targeted gene expression in the corpora cardiaca, cells central for metabolic homeostasis, and other neuroendocrine cell types. The collection further contains specific LexA drivers for stem cells and other enteric cells in the gut, and other developmentally relevant tissue types. We provide detailed analysis of nearly 100 new LexA lines, including molecular mapping of insertions, description of enhancer-driven reporter expression in larval tissues, and adult neuroendocrine cells, comparison with established enhancer trap collections and tissue specific RNAseq. Generation of this open-resource LexA collection facilitates neuroendocrine and developmental biology investigations, and shows how empowering secondary school science can achieve research and educational goals., (Copyright © 2016 Kockel et al.)

Background: Neoadjuvant radiotherapy followed by surgical resection and soft tissue reconstruction provides the best possibility of achieving superior limb function in soft tissue sarcomas. The aim of this study was to report our experience of free flap microsurgical reconstruction of recently irradiated soft tissue sarcoma defects., Methods: A retrospective study of microsurgical outcome in consecutively treated extremity and trunk sarcoma patients undergoing free tissue transfer between 2007 and 2012 was conducted from a prospectively collected database. Outcomes in pre-operatively irradiated patients were compared with non-irradiated patients. Demographic data, operative details, limb salvage rate, post-operative including microsurgical complications, and long-term limb function (Toronto Extremity Salvage score, TESS; Musculoskeletal Tumour Society Rating Scale, MSTS) were recorded and analysed for differences between the two study groups., Results: Forty-six patients underwent 46 free flaps (pre-irradiated n = 32, non-irradiated n = 14) over the study period. Microvascular complications (intra-operative revision, flap re-exploration, flap loss) were uncommon and similar between the two groups (4/32 and 2/14 respectively, p > 0.05). Recipient site wound healing complications (i.e. not flap related) occurred more frequently in pre-irradiated patients (16 events) compared with the control group (2 events, p = 0.03). There was no significant difference in limb salvage rate, or TESS/MSTS functional outcome scores between the two patient groups., Conclusions: Free tissue transfer is safe and effective in patients undergoing surgical resection and reconstruction following neoadjuvant radiotherapy., (Copyright © 2013 British Association of Plastic, Reconstructive and Aesthetic Surgeons. All rights reserved.)

Aim: Case payment mechanisms have become the principle means of remunerating hospitals in many countries. We analysed the reimbursement for different types of autologous tissue transfer in five European countries., Methods: We looked at common surgical options for breast reconstruction and flaps at other body regions. The principle diagnosis was systematically modified and processed with national grouper software to identify the relevant Diagnosis-Related Groups., Results: The mean difference in payment was 4509 € in breast reconstruction versus only 2599 € in other locations. According to the underlying diagnosis for reconstruction, procedures after resection of malignant breast cancer showed higher reimbursement (mean 8319 €) than of other body parts (mean 6454 €). Sweden had the highest mean reimbursement (9589 €) followed by Austria (8032 €), Germany (7259 €), Italy (6667 €) and the UK (6037 €). Austria, Italy and the UK showed significant differences of reimbursement between pedicled flaps of the breast and other parts of the body., Conclusion: International data for the benchmarking and refinement of a national compensation system can be a useful instrument in identifying ways of improving each system. Across a spectrum of European countries, reimbursement for the reconstruction of the breast and other body parts was analysed and characteristics were identified. As rationalisation of healthcare becomes widespread in European countries, the need for individualised reimbursement which correlates accordingly is becoming ever more important.

Aims: Case payment mechanisms have become the principal means of remunerating hospitals in most developed countries. The purpose of this study was to make an international comparison of reimbursement for breast reconstructive surgery., Methods: We analysed remuneration for unilateral and bilateral female breast reconstruction (pedicled flaps, free flaps, alloplastic procedures) across five different European countries. National grouper software was used to identify Diagnosis Related Groups from which the proceeds were derived., Results: The mean reimbursement was € 5593 for pedicled flaps, € 9149 for free flaps and € 4037 for implant-based reconstructions. The highest payments were in Sweden and the lowest in Italy. When adjusting payments by purchasing power parities, the relation among the countries did not change. The Austrian system makes a clear distinction between one-stage and two-stage delayed reconstructive interventions whereas reimbursement in other countries favoured a two-stage approach. Only one of five national reimbursement systems distinguishes between unilateral and bilateral reconstructions., Conclusions: Across a spectrum of European countries, reimbursement for breast reconstruction was based on similar procedure-specific systems, although there was a wide variation in tariffs and consideration of other factors such as underlying diagnosis. As delivery of healthcare becomes more rationalised, there is a need for individualised reimbursement which correlates directly with activity. Drawing on the experience of different healthcare systems may lead to development of a more robust and fair system of reimbursement., (Copyright © 2012. Published by Elsevier Ltd.)

Background: The free anterolateral thigh flap (ALT) is now used as a 'workhorse flap'. The donor site morbidity is thought to be minimal, although most evidence derives from questionnaire-based studies rather than rigorous objective clinical assessment. In particular, robust quantitative data on thigh sensibility and quadriceps function is lacking. The aim of this study was to provide a comprehensive clinical assessment of donor site morbidity., Methods: We performed a prospective study of consecutive free ALT perforator flaps performed at Salisbury Foundation Trust between March 2008 and April 2010. The donor site was assessed at six months including a questionnaire (symptoms, function), scar analysis (Vancouver Scar Scale, VSS), and evaluation of quadriceps power and lateral thigh sensibility (compared with the contralateral unoperated thigh)., Results: One hundred ALT flaps were performed on 97 patients (mean age 46.8 years). The donor site was closed directly in 88 cases and using a split skin graft in 12 cases. At follow-up (n=68), tingling was the most common reported symptom (59%), whereas pain, itching and muscle herniation were reported infrequently. Donor site scars were mostly flat, pale and soft but widened. Pathological scarring was rare. Sensibility was reduced in donor thighs (p<0.001) and correlated with flap width but peak quadriceps contraction was similar between donor and unoperated thighs., Conclusions: There was a high throughput and diverse application of ALT flap reconstructions during the study period. Reduced sensibility was common around the scar but rarely troublesome. Quadriceps function was not affected even when dissection of intramuscular perforators was required. The ALT is a versatile flap that can deliver a large skin paddle with minimal impact on thigh function., (Copyright © 2011 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)

Introduction: Trauma is a significant part of the workload in plastic surgery. There are currently wide variations in the available resource for dealing with these patients. Delays to treatment currently exist and may result in poorer clinical outcomes., Method: Data was collected prospectively in 4 centres (Cork University Hospital, John Radcliffe Hospital, Stoke Mandeville Hospital and Salisbury District Hospital) assessing delays to theatre. We assessed time to theatre, both from injury and from review, cancellation rate, starvation time and patient satisfaction., Results: 424 patients were audited over an 8-week period. The average time from review to theatre was 15.7 h and the average injury-to-theatre time was 58.6 h. The average starvation time was 10 h; the mean cancellation rate was 25%. Patients are satisfied overall with the service provided with 83% rating the service as excellent or good, and 63% feeling that there wait was not too long., Conclusions: Despite an increase in provision of emergency plastic surgery trauma lists, the average wait for emergency plastic surgery is increasing. Despite this patients remain, on the whole, satisfied with the service that they are receiving., (Copyright © 2010 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)

Introduction: The provision of a complex lower-limb trauma service has significant resource implications. This financial burden is not recognised by the current fixed price tariff system (Payment by Results). The aim of this study was to compare the actual costs of treatment with reimbursement., Methods: We conducted a prospective study in two large regional plastic surgery centres in the UK, Salisbury Foundation Trust (SFT) and the Frenchay Hospital, Bristol (FH). The total cost of treatment for consecutive patients with complex lower limb trauma requiring free tissue transfer was calculated and compared with the Health Resource Group (HRG) tariff., Results: A cost analysis was performed on 20 patients (10 Salisbury, 10 Frenchay) with open tibial fractures (all grade IIIb Gustillo & Anderson) requiring free-flap reconstruction (15 anterolateral thigh (ALT) flaps, one serratus, one latissimus dorsi (LD), one scapular and two gracilis). The mean treatment cost of performing a free flap was £12792 ± £970 SEM (SFT) and £10953 ± £650 (FH). In both centres, the cost was more than double the HRG tariff (£4220 SFT, £4892 FH, p < 0.05)., Conclusions: Our study highlights the considerable disparity between the cost of managing patients with severe lower-limb trauma and the remuneration by Primary Care Trusts (PCTs). Accurate cost analysis of these cases will allow hospital trusts to negotiate appropriate tariffs with PCTs and develop services, which are cost neutral., (Copyright © 2010 Elsevier Ltd. All rights reserved.)

Absence of flexor digitorum superficialis function in the little finger is a relatively common congenital anomaly that can complicate assessment of little finger injuries. We reviewed the prevalence of unilateral and bilateral absence of superficialis function in the published literature. In appropriate studies identified (1352 people), the anomaly was unilateral in 92 individuals (6.8%) and bilateral in 81 (6.0%). If superficialis function is absent in one little finger, the probability of absence in the opposite hand is 0.64. If superficialis function is present, the probability of absence in the other little finger is 0.02 (1 in 50). Absence of little finger superficialis function in one hand is therefore not a reliable indicator of this function in the opposite hand.