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2.
Cir Esp (Engl Ed) ; 101(1): 29-34, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35809787

RESUMEN

INTRODUCTION: The SARS-CoV-2 pandemic has affected training opportunities for healthcare professionals partly because face to face courses were cancelled. This study analyzes the results of participation and satisfaction of the AEC Virtual Classroom sessions during the first year. METHODS: The AEC Virtual Classroom includes a combined format of weekly Webinar broadcast live that can be viewed on a delayed basis in a virtual platform. In this study, the results in its first year are evaluated considering the number of live participants, the delayed views and the global reach; as well as the results of the satisfaction survey in each of the sessions (0-10). RESULTS: From 16/04/2020 to 15/04/2021, 50 sessions of the Virtual Classroom AEC were held. The average scope of the sessions was 509 ± 288 views with a range between 196 and 149. At the times of highest incidence of cases during the pandemic, a decrease in live participants was observed 275 ± 135 vs. 391 ± 233 (P = 0.032). The mean score on the format was 8.46 ± 0.31/10. The best-scored sessions were those of the subject related to coloproctology with a statistically significant difference in the mean score 8.79 ± 0.42 vs. 8.39 ± 0.27 (P = 0.035). 90% of users considered the sessions useful. 97.2% of respondents believe that the sessions should be maintained after the pandemic. CONCLUSIONS: The AEC Virtual Classroom has had very good results in the first year, proving to be a useful surgical teaching tool that will foreseeably survive once the pandemic is over.


Asunto(s)
COVID-19 , Pandemias , Humanos , COVID-19/epidemiología , SARS-CoV-2
3.
Cir Esp ; 101(1): 29-34, 2023 Jan.
Artículo en Español | MEDLINE | ID: mdl-34720121

RESUMEN

Introduction: The SARS-CoV-2 pandemic has affected training opportunities for healthcare professionals partly because face to face courses were cancelled. This study analyzes the results of participation and satisfaction of the AEC Virtual Classroom sessions during the first year. Methods: The AEC Virtual Classroom includes a combined format of weekly Webinar broadcast live that can be viewed on a delayed basis in a virtual platform. In this study, the results in its first year are evaluated considering the number of live participants, the delayed views and the global reach; as well as the results of the satisfaction survey in each of the sessions (0-10). Results: From 16/04/2020 to 15/04/2021, 50 sessions of the Virtual Classroom AEC were held. The average scope of the sessions was 509 ± 288 views with a range between 196 and 149. At the times of highest incidence of cases during the pandemic, a decrease in live participants was observed 275 ± 135 vs. 391 ± 233 (p = 0.032). The mean score on the format was 8.46 ± 0.31/10. The best-scored sessions were those of the subject related to coloproctology with a statistically significant difference in the mean score 8.79 ± 0.42 vs. 8.39 ± 0.27 (p = 0.035). 90% of users considered the sessions useful. 97.2% of respondents believe that the sessions should be maintained after the pandemic. Conclusions: The AEC Virtual Classroom has a very good results in the first year, proving to be a useful surgical teaching tool that will foreseeably survive once the pandemic is over.

4.
Cir. Esp. (Ed. impr.) ; 100(12): 747-754, dic. 2022. ilus, tab
Artículo en Español | IBECS | ID: ibc-212486

RESUMEN

Introducción: El cáncer colorrectal representa el tercer cáncer con mayor incidencia en ambos sexos. Un tercio de los pacientes con cáncer experimentan sintomatología ansiosa o depresiva. El objetivo de este estudio fue evaluar la eficacia de una intervención de reducción de estrés basada en mindfulness a través de una aplicación móvil (En calma en el quirófano). Método: Es un ensayo controlado, aleatorizado, con evaluador ciego y multicéntrico, que compara la eficacia de una aplicación de entrenamiento en mindfulness para móviles (rama experimental) con tratamiento habitual (rama control), en 3tiempos de medida (T0 o línea base, T1 o alta a domicilio, T2 o un mes tras cirugía). Se evaluó la sintomatología ansiosa y depresiva (HADS), la calidad de vida (WHOQOL), la escala de dolor (EVA) y la escala de satisfacción (CSQ). Resultados: Hubo un total de 270 derivaciones. Fueron analizadas 82 personas: 39 personas utilizaron la app y 43 continuaron su tratamiento habitual. No hubo cambios significativos entre grupos ni tiempos de medida. Se observó una ligera tendencia en la que el grupo experimental tuvo menos síntomas de depresión y ansiedad entre T0 y T2 (B?= −0,2; IC 95%: 8,8-9,2). Conclusiones: Nuestra población mostraba una edad media alta (65 años), niveles bajos de ansiedad y depresión, y niveles medios de calidad de vida en T0. Estos factores podrían haber interactuado y limitado la eficacia de la app. Nuevas líneas de investigación tienen que ir dirigidas a evaluar la eficacia de las apps para pacientes con enfermedades quirúrgicas en poblaciones más jóvenes. (AU)


Introduction: Colorectal cancer is the third most common cancer worldwide that occurs both in men and women. Around one-third of patients with cancer will suffer from anxiety or depression symptoms. The aim of this study was to evaluate the effectiveness of a mindfulness-based stress reduction intervention through a mobile application («en calma en el quirófano»). Method: This study is a multicenter, single-blind (evaluator), controlled, randomized trial that compares the effectiveness of a mindfulness training through a mobile application (intervention group) and treatment as usual (control group) in 3different moments (T0 or baseline, T1 or hospital discharge and T2 or one month after surgery). Hospital Anxiety and depression Scale (HADS), quality of life (WHOQOL), pain (VAS) and satisfaction (CSQ) were assessed. Results: In all, there were 270 referred patients. Among them, 39 and 43 were assigned to the intervention and control groups respectively; 82 patients were analyzed: 39 patients used the app, and 43 patients continued with the treatment as usual. There were no significant changes between groups and time. We observed a slight trend in which intervention group had less depression and anxiety symptoms since T0 and T2 (B=−0.2; 95% CI: 8.8-9.2). Conclusions: The sample of this study had a high mean age (65 years old), and low levels of anxiety and depression and medium levels of pre-surgery quality of life in baseline. These factors could have influenced limiting the effectiveness of the app. Prospective research lines should focus on evaluating the effectiveness of mobile applications for younger patients with surgical pathologies. (AU)


Asunto(s)
Humanos , Masculino , Femenino , Persona de Mediana Edad , Anciano , Neoplasias Colorrectales , Aplicaciones Móviles , Atención Plena , Estrés Psicológico , Encuestas y Cuestionarios , Ansiedad , Depresión
5.
Langenbecks Arch Surg ; 407(8): 3671-3679, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36239791

RESUMEN

PURPOSE: Deep endometriosis (DE) is defined by the presence of ectopic endometrial glands, with rectal involvement ranging from 5.3 to 12%. The prevalence of low anterior resection-like syndrome (LARS) in patients with DE, how it affects quality of life (QoL), and its evolution after surgery is unclear. The objective of this study was to assess the gastrointestinal functional outcomes and QoL in patients who underwent surgery for DE. PATIENTS AND METHODS: A prospective study was conducted from 2017 to 2019, recruiting patients who underwent DE surgery with and without rectal resection. Patients completed LARS and SF-36 questionnaires before, at 6 months and at 1 year after surgery. RESULTS: Eighty-two patients were enrolled. Rectal segmental resection was required in 16 (19.5%) patients, shaving in 16 (19.5%) and discoid resection in 8 (9.8%). All 8 domains of the SF-36 questionnaire showed improvement during follow-up, reflecting improved QoL after surgery (p ≤ 0.05) in all patients. Mean LARS scores for patients without rectal surgery were 7.5 ± 10.4 before and 13.7 ± 14.2 1 year after surgery; rectal surgery was 13.6 ± 13.6 and 14.6 ± 13.1, respectively (p = 0.17). No significant differences were found in the rectal surgery patients' postoperative LARS score among the 3 rectal DE surgical techniques (p = 0.97), and the SF-36 scores improved independent of the technique performed. CONCLUSIONS: Patients with DE present a LARS-like syndrome before surgery that does not appear to be negatively affected after rectal surgery, independent of the technique performed. Rectal surgery improves the QoL of patients with DE patients as measured by the SF-36 questionnaire at 1 year of follow-up.


Asunto(s)
Endometriosis , Enfermedades del Recto , Neoplasias del Recto , Femenino , Humanos , Calidad de Vida , Complicaciones Posoperatorias/epidemiología , Endometriosis/cirugía , Estudios Prospectivos , Síndrome , Neoplasias del Recto/cirugía , Resultado del Tratamiento , Enfermedades del Recto/cirugía
6.
Front Surg ; 9: 982922, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36132211

RESUMEN

Objective: Assess the surgeons' workload during deep endometriosis surgery after ureteral ICG. Design: Prospective, consecutive, comparative, single-center study. Population: 41 patients enrolled to deep endometriosis surgery with ureteral ICG from January 2019 to July 2021 at La Paz University Hospital. Methods: Patients were divided into 2 groups: patients operated during the learning curve of ureteral ICG instillation and patients operated after the technique was implemented and routinely performed. After surgery, the SURG-TLX form was completed by the surgeons. We evaluated whether a workload reduction occurred. Main outcomes measures: Surgeon's workload was measured using the SURG-TLX form, obtaining the total workload and 6 different dimensions (distractions, temporal demands, task complexity, mental demands, situational stress and physical demands). Results: A significant positive correlation was found between surgical complexity and situational stress (p = 0.04). Mental demands (p = 0.021), physical demands (p = 0.03), and total workload (p = 0.025) were significantly lower when the technique was routinely performed. The mental demand, physical demands, and total workload perceived by the surgeons at the beginning of the implementation was higher (68 [39-72], 27 [11-46.5], 229 [163-240], respectively) than in the latter ones (40 [9-63], 11.5 [0-32.8], 152 [133.3-213.8], respectively). Distractions appeared to be higher in the latter surgeries (8.5 [0-27.8]) than in the first surgeries (0 [0-7]; p = 0.057). Conclusions: Ureter ICG instillation prior to DE surgery significantly reduces the mental and physical demands and total workload of the surgeons in DE surgeries after overcoming the learning curve. Distractions appear to increase as surgical stress decreases.

7.
Cir Esp (Engl Ed) ; 100(12): 747-754, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36064177

RESUMEN

INTRODUCTION: Colorectal cancer is the third most common cancer worldwide both in men and women. Around one-third of patients with cancer will suffer from anxiety or depression symptoms. The aim of this study was to evaluate the effectiveness of a Mindfulness-based stress reduction intervention through a mobile application ("En Calma en el Quirófano"). METHOD: This study is a multicenter, single-blind (evaluator), controlled, randomised trial that compares the effectiveness of a mindfulness training through a mobile application (intervention group) and treatment as usual (control group) in three different moments (T0 or baseline, T1 or hospital discharge and T2 or one month after surgery). Anxiety and depression symptoms (HADS), quality of life (WHOQOL), pain, (VAS) and satisfaction (CSQ) were assessed. RESULTS: In all, there were 270 referred patients. Among them, 39 and 43 were assigned to the intervention and control groups respectively. 82 patients were analyzed: 39 patients used the app, and 43 patients continued with the treatment as usual. There were no significant changes between groups and time. We observed a slight trend in which intervention group had less depression and anxiety symptoms since T0 and T2 (B = -0.2; 95% CI between 8.8 and 9.2). CONCLUSIONS: The sample of this study had a high mean age (65 years old), and low levels of anxiety and depression and medium levels of pre-surgery quality of life in baseline. These factors could have influenced limiting the effectiveness of the app. Prospective research lines should focus on evaluating the effectiveness of mobile applications for younger patients with surgical pathologies.


Asunto(s)
Neoplasias Colorrectales , Atención Plena , Aplicaciones Móviles , Masculino , Humanos , Femenino , Anciano , Calidad de Vida , Método Simple Ciego , Estudios Prospectivos , Neoplasias Colorrectales/cirugía
8.
World J Stem Cells ; 14(1): 117-141, 2022 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-35126832

RESUMEN

BACKGROUND: Digestive tract resections are usually followed by an anastomosis. Anastomotic leakage, normally due to failed healing, is the most feared complication in digestive surgery because it is associated with high morbidity and mortality. Despite technical and technological advances and focused research, its rates have remained almost unchanged the last decades. In the last two decades, stem cells (SCs) have been shown to enhance healing in animal and human studies; hence, SCs have emerged since 2008 as an alternative to improve anastomoses outcomes. AIM: To summarise the published knowledge of SC utilisation as a preventative tool for hollow digestive viscera anastomotic or suture leaks. METHODS: PubMed, Science Direct, Scopus and Cochrane searches were performed using the key words "anastomosis", "colorectal/colonic anastomoses", "anastomotic leak", "stem cells", "progenitor cells", "cellular therapy" and "cell therapy" in order to identify relevant articles published in English and Spanish during the years of 2000 to 2021. Studies employing SCs, performing digestive anastomoses in hollow viscera or digestive perforation sutures and monitoring healing were finally included. Reference lists from the selected articles were reviewed to identify additional pertinent articles.Given the great variability in the study designs, anastomotic models, interventions (SCs, doses and vehicles) and outcome measures, performing a reliable meta-analysis was considered impossible, so we present the studies, their results and limitations. RESULTS: Eighteen preclinical studies and three review papers were identified; no clinical studies have been published and there are no registered clinical trials. Experimental studies, mainly in rat and porcine models and occasionally in very adverse conditions such as ischaemia or colitis, have been demonstrated SCs as safe and have shown some encouraging morphological, functional and even clinical results. Mesenchymal SCs are mostly employed, and delivery routes are mainly local injections and cell sheets followed by biosutures (sutures coated by SCs) or purely topical. As potential weaknesses, animal models need to be improved to make them more comparable and equivalent to clinical practice, and the SC isolation processes need to be standardised. There is notable heterogeneity in the studies, making them difficult to compare. Further investigations are needed to establish the indications, the administration system, potential adjuvants, the final efficacy and to confirm safety and exclude definitively oncological concerns. CONCLUSION: The future role of SC therapy to induce healing processes in digestive anastomoses/sutures still needs to be determined and seems to be currently far from clinical use.

9.
Surgery ; 172(1): 74-82, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35168815

RESUMEN

BACKGROUND: Oncological outcomes of self-expanding metallic stent used as a bridge to surgery in potential curative patients with left-sided colonic cancer obstruction remain unclear. The aim of this study was to investigate perioperative and mid-term oncological outcomes of 2 of the currently most commonly performed treatments in left-sided colonic cancer obstruction. METHODS: This is a retrospective multicenter study including patients with left-sided colonic cancer obstruction treated with curative intent between 2013 and 2017. The presence of metastasis at diagnosis was an exclusion criterion. The primary outcome was to evaluate the noninferiority, in terms of overall survival, of bridge to surgery strategy compared with emergency colonic resection. The secondary outcomes were perioperative morbimortality, disease free survival, local recurrence, and distant recurrence. RESULTS: A total of 564 patients were included, 320 in the emergency colonic resection group and 244 in the bridge to surgery group. Twenty-seven patients of the bridge-to-surgery group needed urgent operation. Postoperative morbidity rates were statistically higher in the emergency colonic resection group (odds ratio [95% confidence interval] 0.37 [0.24-0.55], P < .001). There was no difference in 90-day mortality between groups (odds ratio [95% confidence interval] 0.85 [0.36-1.99], P = .702). The median follow-up was 3.80 years (2.29-4.92). The results show the noninferiority of bridge to surgery versus emergency colonic resection in terms of overall survival (hazard ratio [95% confidence interval) 0.78 [0.56-1.07], P = .127). There were no differences in disease free survival, distant recurrence, and local recurrence rates between bridge to surgery and emergency colonic resection groups. CONCLUSION: Self-expanding metallic stent as bridge to surgery might not lead to a negative impact on the long-term prognosis of the tumor compared with emergency colonic resection in expert hands and selected patients.


Asunto(s)
Neoplasias del Colon , Neoplasias Colorrectales , Obstrucción Intestinal , Neoplasias del Colon/complicaciones , Neoplasias del Colon/patología , Neoplasias del Colon/cirugía , Neoplasias Colorrectales/cirugía , Supervivencia sin Enfermedad , Humanos , Obstrucción Intestinal/complicaciones , Obstrucción Intestinal/cirugía , Estudios Retrospectivos , Stents , Resultado del Tratamiento
10.
Cir Esp (Engl Ed) ; 99(3): 174-182, 2021 Mar.
Artículo en Inglés, Español | MEDLINE | ID: mdl-33341242

RESUMEN

The SARS-CoV-2 (COVID-19) pandemic requires an analysis in the field of oncological surgery, both on the risk of infection, with very relevant clinical consequences, and on the need to generate plans to minimize the impact on possible restrictions on health resources. The AEC is making a proposal for the management of patients with hepatopancreatobiliary (HPB) malignancies in the different pandemic scenarios in order to offer the maximum benefit to patients, minimising the risks of COVID-19 infection, and optimising the healthcare resources available at any time. This requires the coordination of the different treatment options between the departments involved in the management of these patients: medical oncology, radiotherapy oncology, surgery, anaesthesia, radiology, endoscopy department and intensive care. The goal is offer effective treatments, adapted to the available resources, without compromising patients and healthcare professionals safety.


Asunto(s)
COVID-19/prevención & control , Neoplasias del Sistema Digestivo/cirugía , Control de Infecciones/organización & administración , Selección de Paciente , Oncología Quirúrgica/organización & administración , COVID-19/epidemiología , COVID-19/transmisión , Neoplasias del Sistema Digestivo/patología , Humanos
12.
Cir. Esp. (Ed. impr.) ; 98(5): 251-259, mayo 2020. graf, tab
Artículo en Español | IBECS | ID: ibc-187152

RESUMEN

Debido a la actual pandemia de enfermedad respiratoria denominada enfermedad por coronavirus 2019 (COVID-19) causada por el virus denominado SARS-CoV-2, numerosos pacientes con confirmación o sospecha de COVID-19 precisarán tratamiento quirúrgico electivo inaplazable o urgente. Estas situaciones requieren la adopción de medidas especiales da cara a minimizar la posibilidad de contagio entre pacientes, la exposición del personal sanitario y el desarrollo de complicaciones postoperatorias. En el presente documento se explican las principales medidas a tener en cuenta en caso de atención a pacientes COVID-19 o sospecha tanto durante su evaluación como en caso de requerir tratamiento quirúrgico


Due to the current pandemic of respiratory disease known as coronavirus disease 2019 (COVID-19) caused by the SARS-CoV-2 virus, many patients with confirmed or suspected COVID-19 infection will require elective surgery, surgery that cannot be postponed, or emergency surgical treatment. In these situations, special measures need to be adopted in order to minimize the possibility of transmission between patients, exposure of healthcare personnel and the development of postoperative complications. This document explains the main principles to consider when managing confirmed or suspected COVID-19 patients during evaluation as well as when surgical treatment is required


Asunto(s)
Humanos , Infecciones por Coronavirus/epidemiología , Neumonía Viral/epidemiología , Pandemias , Transmisión de Enfermedad Infecciosa de Paciente a Profesional/prevención & control , Complicaciones Posoperatorias/prevención & control , Cuidados Preoperatorios/normas , Centros Quirúrgicos/normas , Equipos de Seguridad/normas , Procedimientos Quirúrgicos Operativos/normas , Betacoronavirus , Sociedades Médicas , España
13.
Cir Esp (Engl Ed) ; 98(5): 251-259, 2020 May.
Artículo en Inglés, Español | MEDLINE | ID: mdl-32252979

RESUMEN

Due to the current pandemic of respiratory disease known as coronavirus disease 2019 (COVID-19) caused by the SARS-CoV-2 virus, many patients with confirmed or suspected COVID-19 infection will require elective surgery, surgery that cannot be postponed, or emergency surgical treatment. In these situations, special measures need to be adopted in order to minimize the possibility of transmission between patients, exposure of healthcare personnel and the development of postoperative complications. This document explains the main principles to consider when managing confirmed or suspected COVID-19 patients during evaluation as well as when surgical treatment is required.


Asunto(s)
Infecciones por Coronavirus/transmisión , Transmisión de Enfermedad Infecciosa/prevención & control , Control de Infecciones/métodos , Pandemias , Neumonía Viral/transmisión , Procedimientos Quirúrgicos Operativos/métodos , COVID-19 , Infecciones por Coronavirus/complicaciones , Infecciones por Coronavirus/prevención & control , Humanos , Pandemias/prevención & control , Neumonía Viral/complicaciones , Neumonía Viral/prevención & control
14.
Cir Esp (Engl Ed) ; 98(6): 320-327, 2020.
Artículo en Inglés, Español | MEDLINE | ID: mdl-32336467

RESUMEN

INTRODUCTION: The rapid spread of SARS-CoV-2 infection has led to a radical reorganization of healthcare resources. Surgical Departments need to adapt to this change. METHODS: We performed a prospective descriptive observational study of the incidence of COVID-19 in patients and surgeons of a General Surgical Department in a high prevalence area, between the 1st and 31st of March 2020. RESULTS: Patients: The incidence of SARS-CoV-2 infection in elective surgery patients was 7% (mean age 59.5 years). All survived. Of 36 patients who underwent emergency surgery, two of them were SARS-CoV-2 positive and one was clinically highly suspicious of COVID-19 (11.1%). All three patients died of respiratory failure (mean age 81 years). Surgeons: There were a total of 12 confirmed SARS-CoV-2+ cases among the surgical department staff (24.4%) (8 out of 34 consultants and 4 out of 15 residents). Healthcare activity: The average number of daily emergency surgical interventions declined from 3.6 in February to 1.16 in March. 42% of the patients who underwent emergency surgery had peritonitis upon presentation. CONCLUSIONS: The fast pace of COVID-19 pandemia should alert surgical departments of the need of adopting early measures to ensure the safety of patients and staff.


Asunto(s)
Infecciones por Coronavirus/epidemiología , Procedimientos Quirúrgicos Electivos/estadística & datos numéricos , Neumonía Viral/epidemiología , Cirujanos/estadística & datos numéricos , Servicio de Cirugía en Hospital , Procedimientos Quirúrgicos Operativos/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , COVID-19 , Urgencias Médicas , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Pandemias , Estudios Prospectivos , España/epidemiología , Centros de Atención Terciaria
15.
Artículo en Inglés | MEDLINE | ID: mdl-31517307

RESUMEN

OBJECTIVE: The aim of the present study was to compare post-operative complications and recurrence of three surgical techniques: segmental resection, discoid excision and nodule shaving. STUDY DESIGN: From January 2014 to December 2017, 143 patients who underwent segmental bowel resections for endometriosis at "La Paz" University Hospital, were enrolled and grouped by different techniques. We compared post-operative complications and recurrence rate in three groups: 76 (53%) patients underwent segmental resection (group I), 20 (14%) patients underwent discoid resection (group II) and 47 (33%) patients underwent rectal shaving (group III).Qualitative data was defined by absolute values and percentages, and quantitative data by mean and standard deviation. Qualitative variables between groups were compared using Chi- squared test. While quantitative data between groups was performed by means of t-test and ANOVA test. For all statistical tests a value of p < 0.05 will be considered statistically significant. RESULT: Segmental resection was associated with higher rate of severe post-operative complications in comparison with discoid resection or shaving technique (23.5% versus 5% versus 0% respectively) (p = 0.005). We showed statistical differences among the three study groups for nodule size (p < 0.001) and localization (p = 0.02). Our analysis showed statistical differences among the three groups in term of additional procedures performed at the same time of bowel surgery, in particular in case of endometriosis of the ureter (p = 0.001) and the parametrium (p = 0.04).After a long follow-up (46.4 ± 0.5 months for the group I, 42.2 ± 1.6 months for the group II, 39.7 ± 1.8 months for the group III), the shaving group was associated to higher recurrence rate (12.7%) in comparison with the discoid group (5%) and the segmental resection group (1.3%) (p = 0.01). CONCLUSION: We showed that segmental resection is associated with high rate of postoperative complications. Conversely, this strategy should avoid the need of further interventions in young patients. Conservative surgery, such as discoid resection and shaving, revealed a higher recurrence rate and could be more appropriate in women approximating menopause because of the lower possibility of recurrence.

18.
J Invest Surg ; 28(2): 120-6, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25517764

RESUMEN

PURPOSE OF THE STUDY: The definitive treatment for liver failure is, currently, liver transplantation. Research into other possible treatments, focused on achieving regeneration of the liver parenchyma, have led to the development of methods to generate hepatocytes from stem cells. In our study, we transplant allogenic adipose-derived stem cells (ASCs), not previously differentiated to hepatocytes, to treat acute liver failure induced by intraperitoneal administration of carbon tetrachloride (CCl4) in a Sprague-Dawley rat model. MATERIAL AND METHODS: The ASCs were delivered via the tail vein, having previously been labeled with PKH26, a fluorescent membrane marker. Two control groups were established, Group 1(n = 15) consisting of olive oil (5 mL/kg) and Group 2(n = 15): 1 × 10(6) PKH26-labeled ASCs. Further, two study groups, Group 3(n = 30): CCl4 dissolved in olive oil and Group 4(n = 30): CCl4 dissolved in olive oil and 1 × 10(6) PKH26-labeled ASCs completed the experimental design. RESULTS: Blood samples were analyzed, finding AST and ALT levels significantly higher in treatment over control groups at 24 and 48 hours. The mortality rates were statistically different between control groups and Group 3 (Group 1-3 p = .04, Group 2-3 p = .04) and between Groups 3 and 4 (p = .02). Examining the liver parenchyma, a significantly higher number of ASCs were observed in Group 4 than in Group 2 at all time points (p = .00). CONCLUSIONS: The intravenous injection of allogenic ASCs in this model of CCl4-induced liver failure reduced the mortality in treated animals. ASCs injected in the rat tail vein were found in the liver in animals with induced acute liver failure.


Asunto(s)
Tejido Adiposo/citología , Diferenciación Celular , Tratamiento Basado en Trasplante de Células y Tejidos/métodos , Enfermedad Hepática Inducida por Sustancias y Drogas/terapia , Hepatocitos/citología , Trasplante de Células Madre/métodos , Alanina Transaminasa/sangre , Animales , Aspartato Aminotransferasas/sangre , Tetracloruro de Carbono/administración & dosificación , Tetracloruro de Carbono/efectos adversos , Diferenciación Celular/fisiología , Enfermedad Hepática Inducida por Sustancias y Drogas/mortalidad , Enfermedad Hepática Inducida por Sustancias y Drogas/patología , Modelos Animales de Enfermedad , Hepatocitos/fisiología , Inyecciones Intraperitoneales , Inyecciones Intravenosas , Hígado/fisiología , Masculino , Ratas , Ratas Sprague-Dawley , Resultado del Tratamiento
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