RESUMO
PURPOSE: Surgical complications after total laryngopharyngectomy (TLP) are common, reconstruction is challenging, and patients often lose their ability to swallow and speak. To evaluate these aspects, we analysed outcome after TLP. METHODS: We reviewed all patients who underwent TLP and subsequent circumferential pharyngeal reconstruction through 2004-2017 at the Helsinki University Hospital. RESULTS: For the 26 eligible patients, TLP was the primary treatment for 11 and salvage surgery for 15, followed by reconstruction with free flaps in 22 patients and pedicled flaps in 4. An early (≤ 30 days) pharyngocutaneous fistula developed in seven patients (27%; median time 13 days; range 6-26), and a late (> 30 days) fistula in five patients (19%; median time 370 days; range 46-785). In addition, ten patients (39%) developed an oesophageal stricture. Four patients (15%) resumed full oral feeding. A speech prosthesis was inserted for 15 patients (58%) and most of them could produce intelligible speech. We found acceptable survival figures for patients undergoing TLP both as a primary treatment and as salvage procedure: the overall survival at 1 year was 82% and 67%, and at 5 years 33% and 27%, respectively. Disease-specific survival at 1 year was 90% and 70%, and that at 5 years was 45% and 43%, respectively. CONCLUSIONS: Despite fair survival, TLP carries a high risk for postoperative complications with limited functional outcome, thus necessitating cautious patient selection and surgical experience.
Assuntos
Transtornos de Deglutição , Laringectomia , Faringectomia , Procedimentos de Cirurgia Plástica/métodos , Complicações Pós-Operatórias , Distúrbios da Fala , Adulto , Idoso , Transtornos de Deglutição/etiologia , Transtornos de Deglutição/cirurgia , Feminino , Finlândia/epidemiologia , Humanos , Laringectomia/efeitos adversos , Laringectomia/métodos , Laringectomia/mortalidade , Masculino , Pessoa de Meia-Idade , Avaliação de Processos e Resultados em Cuidados de Saúde , Faringectomia/efeitos adversos , Faringectomia/métodos , Faringectomia/mortalidade , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Recuperação de Função Fisiológica , Estudos Retrospectivos , Distúrbios da Fala/etiologia , Distúrbios da Fala/cirurgia , Análise de SobrevidaRESUMO
BACKGROUND: CCHCR1 (Coiled-Coil α-Helical Rod protein 1) is a putative psoriasis candidate gene with the risk alleles CCHCR1*WWCC and *Iso3, the latter inhibiting the translation of isoform 1. CCHCR1 was recently shown to be a centrosomal protein, as well as a component of cytoplasmic processing bodies (P-bodies) that regulate mRNA turnover. The function of CCHCR1 has remained unsettled, partly because of the inconsistent findings; it has been shown to play a wide variety of roles in divergent processes, e.g., cell proliferation and steroidogenesis. Here we utilized RNA sequencing (RNAseq) using HEK293 cells overexpressing isoforms 1 or 3 (Iso1, Iso3 cells), in combination with the coding non-risk or risk (*WWCC) haplotype of CCHCR1. Our aim was to study the overall role of CCHCR1 and the effects of its variants. RESULTS: The overexpression of CCHCR1 variants in HEK293 cells resulted in cell line-specific expression profiles though several similarities were observable. Overall the Iso1 and Iso3 cells showed a clear isoform-specific clustering as two separate groups, and the Non-risk and Risk cells often exhibited opposite effects. The RNAseq supported a role for CCHCR1 in the centrosomes and P-bodies; the most highlighted pathways included regulation of cytoskeleton, adherens and tight junctions, mRNA surveillance and RNA transport. Interestingly, both the RNAseq and immunofluorescent localization revealed variant-specific differences for CCHCR1 within the P-bodies. CONCLUSIONS: CCHCR1 influenced a wide variety of signaling pathways, which could reflect its active role in the P-bodies and centrosomes that both are linked to the cytoskeleton; as a centrosomal P-body protein CCHCR1 may regulate diverse cytoskeleton-mediated functions, such as cell adhesion and -division. The present findings may explain the previous inconsistent observations about the functions of CCHCR1.
Assuntos
Centrossomo/metabolismo , Citoesqueleto/metabolismo , Regulação da Expressão Gênica , Peptídeos e Proteínas de Sinalização Intracelular/genética , Espaço Intracelular/metabolismo , Psoríase/genética , Transdução de Sinais , Adesão Celular , Células HEK293 , Haplótipos , Humanos , Psoríase/patologia , Pele/metabolismo , Pele/patologiaRESUMO
BACKGROUND: Cellular grafts used for skin repair require rapid integration with the host tissue to remain viable and especially to nourish the epidermal cells. Here, we evaluated the responses in the split-thickness skin grafts (STSGs) grafted on three differently treated wound beds: directly on excised wound bed (EX), on an artificial dermal template (DT) and on granulation tissue (GT) induced by cellulose sponge. METHODS: In ten burn patients, after excision, a test area was divided into three sections: One transplanted with STSG instantaneously and two sections had a pre-treatment for 2 weeks with either DT or a cellulose sponge inducing granulation tissue formation and thereafter grafted with STSGs. RESULTS: One week after grafting, the STSGs on GT demonstrated most endothelial CD31+ staining, largest average vessel diameters as well as most CD163+ staining of M2-like macrophages and most MIB1+ proliferating epidermal cells, suggesting an active regenerative environment. STSGs on DT had smallest vessel diameters and the least CD163+ macrophages. STSGs on EX had the least CD31+ cells and the least MIB1+ proliferating cells. After 3 months, this reactivity in STSGs had subsided, except increased dermal cell proliferation was observed in STSGs on EX. CONCLUSIONS: Results show that pre-treatment of wound bed and induction of granulation tissue formation can accelerate host-graft interaction by stimulating graft vasculature and inducing cell proliferation.
Assuntos
Autoenxertos/fisiologia , Vasos Sanguíneos/anatomia & histologia , Queimaduras/cirurgia , Derme/fisiologia , Tecido de Granulação/fisiologia , Transplante de Pele/métodos , Cicatrização/fisiologia , Adulto , Animais , Antígenos CD/metabolismo , Antígenos de Diferenciação Mielomonocítica/metabolismo , Autoenxertos/irrigação sanguínea , Proliferação de Células , Derme/citologia , Endotélio/metabolismo , Células Epidérmicas , Epiderme/fisiologia , Feminino , Humanos , Antígeno Ki-67/metabolismo , Macrófagos/metabolismo , Masculino , Pessoa de Meia-Idade , Neovascularização Fisiológica , Tamanho do Órgão , Molécula-1 de Adesão Celular Endotelial a Plaquetas/metabolismo , Receptores de Superfície Celular/metabolismo , Adulto JovemRESUMO
AIM: We herein present our experience using free flaps harvested from the ear region in facial, nasal and intraoral reconstruction. PATIENTS AND METHODS: Between 2011 and 2016, 19 patients underwent reconstruction using 20 free flaps from the ear region based on the superficial temporal vessels. There were 10 males and 9 females with a mean age of 57 years. Defect aetiology consisted of post-tumour ablation (n = 15), trauma (n = 2) and burn scar (n = 2). Defect location involved the nose (n = 13), floor of mouth (n = 3), tongue (n = 1), lower eyelid (n = 1), and lower lip (n = 1). RESULTS: Twelve helical, seven temporal artery posterior auricular skin (TAPAS), and one hemiauricular flap were performed. One patient required venous re-anastomosis but complete flap necrosis eventually occurred. This patient later underwent successful contralateral helix flap reconstruction. Overall flap survival was 95%. Follow-up ranged from 12 to 69 months. A moderate to excellent aesthetic and functional outcome was achieved in all cases, but most (13/19) required later minor refinement surgery. CONCLUSION: As a versatile source of free flap options, the ear can provide more than just the helix.
Assuntos
Procedimentos Cirúrgicos Dermatológicos , Orelha , Traumatismos Faciais/cirurgia , Retalhos de Tecido Biológico , Neoplasias de Cabeça e Pescoço/cirurgia , Microcirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Traumatismos Faciais/patologia , Feminino , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Adulto JovemRESUMO
Background A remarkable development through the evolution of free flap techniques has led to the modern reconstructive head and neck surgery. This study aimed to review experiences from head and neck free-flap reconstructions performed at our institution over an 18-year period. Methods Between 1995 and 2012, 594 free-flap operations were performed on 541 head and neck patients at the Department of Plastic Surgery, Helsinki University Hospital, Finland. We retrospectively recorded hospital chart data regarding patient demographics, tumor characteristics, surgical treatment, and outcome. Results The mean age of patients increased from 53 years (1995-2000) to 56 (2007-2012), while the gender distribution remained constant (60% males). The most commonly used flap type between 1995 and 2000 was radial forearm flap (50%), while during the periods of 2001 through 2006 and 2007 through 2012 the anterolateral thigh flap was the most common method (42 and 36%, respectively). The number of different flap types and flap combinations increased during these periods (15 flap types during 1995 through 2000; 17 flap types during 2001 through 2006; and 24 flap types during 2007 through 2012). Despite a wider range of flap options used during the period 2001 through 2012, the overall flap survival rate (97%) remained constant. The prevalence of surgical complications decreased from 26% (2001 through 2006) to 21% (2007 through 2012). Conclusions During the study period, the number of flap types increased and reconstructions became more individualized. The overall surgical complication rate decreased although the mean age of patients increased.
Assuntos
Retalhos de Tecido Biológico/irrigação sanguínea , Neoplasias de Cabeça e Pescoço/cirurgia , Procedimentos de Cirurgia Plástica , Ferimentos e Lesões/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Finlândia , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/tendências , Estudos Retrospectivos , Resultado do Tratamento , Ferimentos e Lesões/patologia , Adulto JovemRESUMO
BACKGROUND: Microvascular free flaps form the gold standard for reconstruction of defects after intraoral cancer surgery, but not all patients are suitable candidates for microsurgery. The submental artery flap is an alternative to free tissue transfer especially in patients who do not tolerate extensive operations due to major comorbidities. However, in metastatic neck disease, this option has not been recommended due to theoretical intraoral transfer of cancer cells. The aim of this study was to consider the indications and benefits of the submental artery perforator flap in patients with intraoral cancer. METHODS: Ten patients with early (N = 2) or locally advanced (N = 8) intraoral cancer, who were not candidates for free tissue transfer because of major comorbidities, were managed with tumor resection and coverage of the defect with the submental artery flap. The minimum follow-up time for all patients was 6 years. RESULTS: The average defect size was 5 × 9 cm. Two patients developed major complications and one of them had a flap loss. Sentinel lymph node biopsy was used in three cases to rule out positive neck disease close to the flap pedicle. During the follow-up time 6 out of 10 patients had a local recurrence and there were no appearances of metastatic neck disease. CONCLUSION: The submental artery flap is an alternative option to intraoral microvascular reconstruction in patients with major comorbidities. Sentinel lymph node biopsy can be used as an adjunct to enhance oncological safety.
Assuntos
Artérias/transplante , Carcinoma de Células Escamosas/cirurgia , Retalhos de Tecido Biológico/irrigação sanguínea , Neoplasias Bucais/cirurgia , Recidiva Local de Neoplasia/prevenção & controle , Procedimentos de Cirurgia Plástica , Biópsia de Linfonodo Sentinela , Linfonodo Sentinela/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/patologia , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Microcirurgia , Pessoa de Meia-Idade , Neoplasias Bucais/patologia , Esvaziamento Cervical , Seleção de Pacientes , Estudos Retrospectivos , Linfonodo Sentinela/patologia , Resultado do TratamentoRESUMO
Currently a large proportion of patients with severe burn injuries survive. This gives increasing challenges also for psychological recovery after the trauma. More than half of burn patients have mental disorders already before the burn injury but also patients who previously had no mental disorders may suffer from them. Some of the hospitalize burn patients have injuries due to suicidal attempts. Only a small proportion of burn patients receive appropriate psychiatric care although psychosocial interventions specifically planned for burn victims exist. More frequent screening of symtoms of mental disorders and psychiatric consultation, also after acute care in hospital, could lead to better management of post-burn psychiatric care as well as better management of the burn treatment and rehabilitation itself.
Assuntos
Queimaduras/psicologia , Transtornos Mentais/psicologia , Saúde Mental , Queimaduras/terapia , Humanos , Transtornos Mentais/terapia , Tentativa de SuicídioRESUMO
BACKGROUND: Keratinocytes (KCs) are the most frequent cells in the epidermis, and they are often isolated and cultured in vitro to study the molecular biology of the skin. Cultured primary cells and various immortalized cells have been frequently used as skin models but their comparability to intact skin has been questioned. Moreover, when analyzing KC transcriptomes, fluctuation of polyA+ RNA content during the KCs' lifecycle has been omitted. RESULTS: We performed STRT RNA sequencing on 10 ng samples of total RNA from three different sample types: i) epidermal tissue (split-thickness skin grafts), ii) cultured primary KCs, and iii) HaCaT cell line. We observed significant variation in cellular polyA+ RNA content between tissue and cell culture samples of KCs. The use of synthetic RNAs and SAMstrt in normalization enabled comparison of gene expression levels in the highly heterogenous samples and facilitated discovery of differences between the tissue samples and cultured cells. The transcriptome analysis sensitively revealed genes involved in KC differentiation in skin grafts and cell cycle regulation related genes in cultured KCs and emphasized the fluctuation of transcription factors and non-coding RNAs associated to sample types. CONCLUSIONS: The epidermal keratinocytes derived from tissue and cell culture samples showed highly different polyA+ RNA contents. The use of SAMstrt and synthetic RNA based normalization allowed the comparison between tissue and cell culture samples and thus proved to be valuable tools for RNA-seq analysis with translational approach. Transciptomics revealed clear difference both between tissue and cell culture samples and between primary KCs and immortalized HaCaT cells.
Assuntos
Diferenciação Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Queratinócitos/metabolismo , RNA/administração & dosagem , Apoptose/genética , Epiderme/metabolismo , Regulação da Expressão Gênica no Desenvolvimento , Humanos , Queratinócitos/citologia , RNA/síntese química , RNA/genética , RNA Mensageiro/genética , Análise de Sequência de RNA , Pele/efeitos dos fármacos , Pele/metabolismo , Transplante de PeleRESUMO
Perioperative fires inside the mouth can have long-lasting sequelae. They are potentially dangerous both to the patient and to the operation room staff as well. Herein, we present a flash fire in the oropharynx, secondary to electrosurgery during a tonsillectomy operation in a young child. Despite a potentially devastating situation, the patient recovered well within just a week following intraoral burn injuries, and the initially interrupted tonsillectomy operation was completed without complications. The dangerous situations leading to fire hazards and the prevention measures are discussed.
Assuntos
Queimaduras/etiologia , Eletrocirurgia/efeitos adversos , Incêndios , Complicações Intraoperatórias/etiologia , Orofaringe/lesões , Tonsilectomia/métodos , Criança , Eletrocoagulação/efeitos adversos , Incêndios/prevenção & controle , Humanos , MasculinoRESUMO
In head and neck cancer patients with significant comorbidities, the reconstructive options are limited, and there is a need for a safe alternative for microvascular flaps without compromising flap size. During the study period, 331 head and neck cancer patients were reconstructed with microvascular tissue flaps. Ten patients requiring large resections were considered to have high risks for long surgery and to be poor candidates for free tissue transfer and thus were reconstructed with a subpectorally tunneled pedicled latissimus dorsi (SP-LD) flap. The flap was raised simultaneously with the tumor resection and tunneled to the head and neck region. The flap was used for reconstruction of oral, mandibular, pharyngeal, or neck defects. Median follow-up was 3.6 years. Median duration of surgery was 7 hours and 17 minutes, and total hospital stay was 20 days. During the follow-up, four patients died of their disease and one from another cause (median of 329 days). We were able to perform large tumor resections with a curative intent and reconstruct major defects in high-risk head and neck cancer patients with a SP-LD flap. It possesses many of the characteristics of a free flap with the benefits of a shorter operation time and less perioperative risk.
Assuntos
Carcinoma de Células Escamosas/cirurgia , Retalhos de Tecido Biológico/irrigação sanguínea , Neoplasias de Cabeça e Pescoço/cirurgia , Músculo Esquelético/irrigação sanguínea , Procedimentos de Cirurgia Plástica/métodos , Complicações Pós-Operatórias/cirurgia , Retalhos Cirúrgicos/irrigação sanguínea , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/mortalidade , Feminino , Seguimentos , Neoplasias de Cabeça e Pescoço/mortalidade , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/mortalidade , Resultado do TratamentoRESUMO
AIM: To collect data on self-harm burn patients at a national level in Finland and analyze patient characteristics. MATERIAL AND METHODS: First, we went through The National Care Register for Health Care (Hilmo) records from 2011 to 2015 to find all patients in Finland with both burn and self-harm ICD10 codes. Then we investigated the medical records of all patients treated at the National Burn Centre (NBC) in Helsinki in the period 2011-2020. Patients admitted to the hospital because of self-harm burn injuries were compared to those without self-harm injuries. Patients below 18 years old were excluded. RESULTS: The Hilmo register consisted of a total of 3391 adult burn patients admitted to any healthcare unit during the study period. Compared with non-self-harm patients, self-harm patients (N = 82) had lower mean age (41 years vs 54 years, p < 0.001) and longer hospitalization (18 days vs. 6 days, p < 0.05). Two-thirds of the self-harm patients (N = 38) admitted to the NBC in the period 2011-2020 had a pre-burn history of psychiatric care (66%) and one-third of them had a previous record of self-harm or suicide attempt. Men had more severe burns than women (mean TBSA 46% vs. 14%, p < 0.05), and seven of them died during the first 48 h of care, but this was not the case for any female patient. CONCLUSIONS: Self-harm burn patients were younger and had longer hospitalization at all care levels than other burn patients. Based on medical records of hospitalized self-harm burn patients, we found clear gender differences in the severity of the burn injury and in mortality, with men suffering more severe injuries, in some cases leading to death. Recognizing high-risk patients pre-burn could have a strong preventive impact.
Assuntos
Queimaduras , Hospitalização , Tempo de Internação , Sistema de Registros , Comportamento Autodestrutivo , Tentativa de Suicídio , Humanos , Queimaduras/epidemiologia , Queimaduras/psicologia , Masculino , Adulto , Feminino , Finlândia/epidemiologia , Pessoa de Meia-Idade , Comportamento Autodestrutivo/epidemiologia , Tempo de Internação/estatística & dados numéricos , Tentativa de Suicídio/estatística & dados numéricos , Hospitalização/estatística & dados numéricos , Idoso , Adulto Jovem , Unidades de Queimados/estatística & dados numéricos , Fatores EtáriosRESUMO
BACKGROUND: An effective patient-reported outcome measure for scars is needed to assess scar treatments and thus improve scar management. The recently developed SCAR-Q questionnaire for all scar types, which consists of the Appearance, Symptom, and Psychosocial impact scales, has been developed with patients' input. The aim of this study was to translate the SCAR-Q into Finnish and to assess its psychometric properties in burn patients. METHODS: The translation protocol followed the International Society for Pharmacoeconomics and Outcomes Research guidelines. Participants for the psychometric validation of the Finnish SCAR-Q were adults with deep second or third degree burns treated with skin grafting in the Helsinki Burn Centre between 2006 and 2017. Internal consistency was assessed by using Crohnbach's alpha and reliability by using ICC, SEM, R values, and Mann-Whitney U-test. The internal structure of each SCAR-Q subscale was investigated by using exploratory factor analysis. RESULTS: 190 burn patients participated in the psychometric validation of the Finnish SCAR-Q. 135 (71.1 %) of the participants were male. Ceiling effect was present in all subscales. Internal consistency was excellent with all subscales, Crohnbach's alpha 0.97, 0.91, and 0.94. Reliability was good in all subscales, ICC 0.84, 0.88, and 0.91. The parallel analysis suggested inclusion of one factor into factor analysis for the Appearance scale and the Psychosocial impact scale, whereas two factors for the Symptom scale. CONCLUSION: The Finnish version of the SCAR-Q is equivalent with the original scale, showed excellent internal consistency, factor analysis confirmed it for the Appearance and Psychosocial impact scale, and demonstrated good reliability with all subscales when used in assessing burn scars.
Assuntos
Queimaduras , Cicatriz , Medidas de Resultados Relatados pelo Paciente , Psicometria , Traduções , Humanos , Masculino , Queimaduras/psicologia , Queimaduras/complicações , Feminino , Cicatriz/psicologia , Finlândia , Adulto , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Inquéritos e Questionários/normas , Adulto Jovem , Transplante de Pele/psicologia , IdosoRESUMO
INTRODUCTION: Within Finish culture is a strong tradition of sauna bathing. This special environment predisposes the persons refreshing in the sauna to different kind of burns with varying etiologies. Despite the high prevalence of sauna related burns in Finland, there is paucity on the sauna related burns literature. METHODS: In this 13-year retrospective study, all sauna-related contact burns in the adult population treated at the Helsinki Burn Centre were analyzed. Altogether 216 patients were included in this study. RESULTS: The incidence of sauna-related contact burns was significantly higher in males; they accounted for 71.8% of patients. In addition to male gender, another risk factor was high age, with the elderly also being more prone to have a longer length of stay in hospital and more often receiving operative treatment. Despite most burns being relatively small, they were deep and more than one-third (36.6%) of patients underwent surgery. A strong seasonal variation in the injuries was recorded; over 40% of the burns took place during the summer months. CONCLUSION: Sauna contact burns are common, and despite their small size, they frequently cause deep injuries indicating operative treatment. There is a clear male predominance in the patient population. Most probably the cultural aspects of sauna bathing at summer cottages explain the strong seasonal variation in the incidence of these burns. The long latency between initial injury and presentation at the Helsinki Burn Centre should be highlighted to health care centres and central hospitals.
Assuntos
Queimaduras , Banho a Vapor , Humanos , Masculino , Adulto , Idoso , Feminino , Queimaduras/epidemiologia , Queimaduras/terapia , Queimaduras/etiologia , Unidades de Queimados , Banho a Vapor/efeitos adversos , Estudos Retrospectivos , Tempo de InternaçãoRESUMO
BACKGROUND: The aim of this study was to create a Finnish scar assessment scale by translating and evaluating the psychometric properties of the Patient Scar Assessment Scale (PSAS), a part of the Patient and Observer Scar Assessment Scale (POSAS), with burn patients to enable its use in burn care. METHODS: The translation process followed international guidelines with forward and backward translations and cognitive debriefing with patients. Psychometric validation was performed with adult patients with burns who had been treated at the Helsinki Burn Centre between 2006 and 2017 with skin grafting following the excision of deep second- or third-degree burns. To ensure reproducibility, the PSAS was sent to the study participants twice. The correlation between the PSAS and health-related quality of life (HRQL) was also tested. RESULTS: In total, 192 patients, of whom 71 % were male, participated in this study. The mean (SD) age of the participants was 57 (17) years. The internal consistency of the PSAS was good, Cronbach's α 0.89 (95 % CI: 0.86-0.91). The reproducibility was also good concerning all items and the total score, ICC from 0.77 to 0.89. As expected, the total PSAS score correlated negatively with HRQL. CONCLUSION: The PSAS was successfully translated and culturally adapted into Finnish and the newly translated version has good validity and reproducibility for assessing mature burn scars.
Assuntos
Queimaduras , Cicatriz , Adulto , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Cicatriz/patologia , Qualidade de Vida , Psicometria , Finlândia , Reprodutibilidade dos Testes , Queimaduras/complicações , Queimaduras/psicologia , Traduções , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Autologous split-thickness skin grafts (STSGs) are the standard of care for closure of deep and large burns. However, perforation and extensive fishnet-like expansion of the grafts to achieve greater area wound coverage can lead to treatment failures or esthetically poor healing outcomes and scarring. The purpose of this study was to validate an autologous advanced therapy medicinal product (ATMP)-compliant skin cell suspension and evaluate its efficacy to promote epithelialization. METHODS: Cells isolated from a piece of STSG according to ATMP classification requirements were sprayed onto 20 patients during a single operation in a validation study. Comparative evaluation of treatment efficacy was carried out using side-by-side skin graft donor site wounds that were standardized in depth. Firstly, we characterized wound healing transcriptomes at 14 and 21 days from serial wound biopsies in seven patients. Then, side-by-side wounds in four patients were treated with or without the skin cells. The wounds were photographed, clinical outcomes assessed, and the treatment and control wound transcriptomes at 14 days were compared to the untreated wounds' healing transcriptomes. RESULTS: The average cell yield after isolation from the STSG was 2.4 × 106 cells/cm2 with 96 % viability. The product contained mainly keratinocytes and their precursors but also other skin cells such as fibroblasts were present. As compared to vehicle-treated donor site wounds, the wounds treated with cells demonstrated improved epithelialization by both direct comparison and machine learning analysis of the transcriptomes. CONCLUSIONS: We showed that rapid and scalable ATMP-classified processing of skin cells is feasible, and application of the skin cells effectively promotes healing and epithelization of donor site wounds.
Assuntos
Queimaduras , Lesões dos Tecidos Moles , Humanos , Transplante Autólogo , Queimaduras/patologia , Cicatrização , Pele/patologia , Transplante de Pele/efeitos adversos , Lesões dos Tecidos Moles/cirurgiaRESUMO
Healing of the epidermis is a crucial process for maintaining the skin's defense integrity and its resistance to environmental threats. Compromised wound healing renders the individual readily vulnerable to infections and loss of body homeostasis. To clarify the human response of reepithelialization, we biopsied split-thickness skin graft donor site wounds immediately before and after harvesting, as well as during the healing process 3 and 7 days thereafter. In all, 25 biopsies from eight patients qualified for the study. All samples were analyzed by genome-wide microarrays. Here, we identified the genes associated with normal skin reepithelialization over time and organized them by similarities according to their induction or suppression patterns during wound healing. Our results provide the first elaborate insight into the transcriptome during normal human epidermal wound healing. The data not only reveal novel genes associated with epidermal wound healing but also provide a fundamental basis for the translational interpretation of data acquired from experimental models.
Assuntos
Reepitelização , Transcriptoma , Cicatrização , Ferimentos e Lesões/genética , Adulto , Idoso , Biópsia , Proliferação de Células , Epiderme/fisiopatologia , Finlândia , Humanos , Masculino , Pessoa de Meia-Idade , RNA , Reepitelização/genética , Reação em Cadeia da Polimerase em Tempo Real , Proteínas S100/genética , Coleta de Tecidos e Órgãos/métodos , Cicatrização/genética , Ferimentos e Lesões/fisiopatologiaRESUMO
Esthesioneuroblastoma remains a challenging disease because of its rarity, the complexity of surrounding structures, missing opinions of optimal treatment protocol, and complications associated with necessary surgery. Our objective was to analyse the management and outcome of a cohort of patients with esthesioneuroblastoma from 1990 to 2009 in a tertiary medical centre. There were 17 eligible patients (8 males and 9 females) with the median age of 53 years (range 20-75 years). An obvious inconsistency was noted in the management of the various tumours of the present series during the two decades due to a lack of a uniform treatment protocol. The median follow-up time was 57.5 months (range 3-158 months). Nine patients (seven with curative treatment intent) died of the disease with the median time from diagnosis to death of 60 months (range 3-161 months). Eight patients had no evidence of the disease at last follow-up visit (median 76 months, range 24-119 months). Recurrences were documented in seven of the patients. The median time from end of primary treatment to a recurrence was 57 months (range 6-110 months). The 5-year overall survival and disease-free survival was 68 and 62%, respectively. The management of ENB should be planned by an experienced head and neck surgeon as part of a multidisciplinary team in a tertiary referral setting. Multimodality therapy with long-term follow-up is preferable and should be set based on the available disease-specific classifications for clinical staging and histopathological grading.
Assuntos
Estesioneuroblastoma Olfatório/terapia , Cavidade Nasal , Neoplasias Nasais/terapia , Adulto , Idoso , Terapia Combinada , Intervalo Livre de Doença , Estesioneuroblastoma Olfatório/diagnóstico , Estesioneuroblastoma Olfatório/mortalidade , Estesioneuroblastoma Olfatório/secundário , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Neoplasias Nasais/diagnóstico , Neoplasias Nasais/mortalidade , Neoplasias Nasais/patologia , Neoplasias dos Seios Paranasais/diagnóstico , Neoplasias dos Seios Paranasais/mortalidade , Neoplasias dos Seios Paranasais/patologia , Neoplasias dos Seios Paranasais/terapia , Taxa de Sobrevida , Adulto JovemRESUMO
BACKGROUND: This study comprises all hospitalized work-related burn injuries in one country during 2011-2015. The purpose was to describe demographics, causes and risk factors of occupational burn injuries with special focus on the outcome of return to work. MATERIAL AND METHODS: This is a retrospective study on two data sources of which Finnish Workers' Compensation Center's (FWCC) register includes all work-related burn cases at a given time. Additional data have been obtained from those patients, who were referred to the National Burn Centre (NBC) during the same time according to the Emergency Management of Severe Burns (EMSB) criteria. We compare demographics, injury mechanisms and general burn data of these two patient groups. RESULTS: Based on FWCC register, in 2011-2015 occurred 11,623 work-related burn cases of whom 54% were men. During the study period, NBC admitted 26 patients fulfilling EMSB criteria. The most severe patients treated in NBC had injuries affecting multiple body parts. In FWCC data, hand was most injured body part. Kitchen/bakery work was the most common profession in FWCC register but in NBC material industrial and transport professions dominated. In FWCC register, patients had lower mean age (37 years vs. 43 years). Most severe injuries occurred among older patients: In NBC data, those with total body surface area 40% or over had mean age 53 years. Majority of patients returned to work. CONCLUSION: Safety at work in Finland has improved during last decades, and the vast majority of work-related burn injuries are minor. Minor burn injuries are common in young adults working in kitchen and bakery work, whereas elderly men working in transports and industry sustain the most severe burn accidents. Retirement after work-related injury becomes very expensive for all parties, and this data can be used in preventing those cases as well as the minor accidents.
RESUMO
BACKGROUND: Carotid interposition graft (CIG) surgery in the setting of head & neck cancer (HNC) is a rare procedure with a limited number of cases described in the literature. AIMS/OBJECTIVES: To assess the outcomes of the surgery at Helsinki University Hospital. MATERIALS AND METHODS: Patients who underwent CIG in a head and neck tumor surgery were retrospectively analyzed over 15 years. Overall-survival (OS) was calculated until 1 May 2020. The primary-outcome was to measure the 30-day OS, postoperative stroke rate, and other complications. The secondary-outcome was to measure 1-, 2-, and 5-year OS. RESULTS: Thirteen patients were identified, 11 with HNC and two with Shamblin III Carotid Body Tumors. The great saphenous vein was used for all vascular reconstructions, and shunting was routinely performed. The 30-day stroke incidence was nil. Two graft-blowouts were encountered, one of which lead to death and the other was successfully managed. For HNC patients, the locoregional recurrence-rate was 36%. The 5-year OS was 46.2%. CONCLUSION AND SIGNIFICANCE: CIG in HNC setting can achieve oncologic-control with an acceptable rate of complications. Routine shunting, heparinization, and elevating blood-pressure during closure seem to be safe protocols to maintain cerebral-circulation perioperatively. A moderate graft-blowout risk should be considered.
Assuntos
Neoplasias de Cabeça e Pescoço , Veia Safena , Autoenxertos , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Recidiva Local de Neoplasia , Estudos Retrospectivos , Veia Safena/transplante , Resultado do TratamentoRESUMO
To investigate if donor and recipient site morbidity (healing time and cosmesis) could be reduced by a novel, modified split-thickness skin grafting (STSG) technique using a dermal component in the STSG procedure (DG). The STSG technique has been used for 150 years in surgery with limited improvements. Its drawbacks are well known and relate to donor site morbidity and recipient site cosmetic shortcomings (especially mesh patterns, wound contracture, and scarring). The Dermal graft technique (DG) has emerged as an interesting alternative, which reduces donor site morbidity, increases graft yield, and has the potential to avoid the mesh procedure in the STSG procedure due to its elastic properties. A prospective, dual-centre, intra-individual controlled comparison study. Twenty-one patients received both an unmeshed dermis graft and a regular 1:1.5 meshed STSG. Aesthetic and scar assessments were done using The Patient and Observer Scar Assessment Scale (POSAS) and a Cutometer Dual MPA 580 on both donor and recipient sites. These were also examined histologically for remodelling and scar formation. Dermal graft donor sites and the STSG donor sites healed in 8 and 14 days, respectively (p < 0.005). Patient-reported POSAS showed better values for colour for all three measurements, i.e., 3, 6, and 12 months, and the observers rated both vascularity and pigmentation better on these occasions (p < 0.01). At the recipient site, (n = 21) the mesh patterns were avoided as the DG covered the donor site due to its elastic properties and rendered the meshing procedure unnecessary. Scar formation was seen at the dermal donor and recipient sites after 6 months as in the standard scar healing process. The dermis graft technique, besides potentially rendering a larger graft yield, reduced donor site morbidity, as it healed faster than the standard STSG. Due to its elastic properties, the DG procedure eliminated the meshing requirement (when compared to a 1:1.5 meshed STSG). This promising outcome presented for the DG technique needs to be further explored, especially regarding the elasticity of the dermal graft and its ability to reduce mesh patterns.Trial registration: ClinicalTrials.gov Identifier (NCT05189743) 12/01/2022.