Cannabis and anhedonia: A systematic review.

This paper employs a systematic review to examine the correlation between anhedonia and marijuana use, exploring whether individuals with anhedonia use marijuana as a coping mechanism or if marijuana use plays a role in the onset of anhedonia. The search utilised PubMed and Web of Science databases, following PRISMA guidelines for paper selection. A total of 21 papers were selected to address this inquiry, and assessments were carried out using the Risk of Bias in Non-randomized Studies of Exposures (ROBINS-E) tool. The results revealed that 17 studies exhibited moderate and low risk of bias. The evaluation encompassed a total of 12,427 participants, including both animals and humans. Experimental animal studies focused on exploring the association between cannabidiol (CBD) and anhedonia, while human studies primarily employed observational research, examining various forms of anhedonia in individuals with or without mental disorders such as depression or psychosis. These studies also delved into understanding the effects of anhedonia during adolescence and explored the causal relationship between these concepts. The findings indicate a reciprocal rather than unidirectional relationship, establishing that initial anhedonia predisposes individuals to cannabis use, and subsequent consumption significantly intensifies the anhedonia experienced. Particularly, the studies placed special emphasis on adolescents and individuals with mental disorders.

Sports motivation, anxiety and diet in education students / Motivación deportiva, ansiedad y dieta en estudiantes de educación

Motivational development with regards to sport plays a fundamental role in sport performance, however, anxiety and dietary patterns also play a key role. In consideration of the above, the present research aimed to develop an explanatory model of the motivational climate towards sport and its relationship with the Mediterranean diet and anxiety. This structural model was then examined according to gender using multi-group analysis. To this end, a cross-sectional, descriptive and comparative study was carried out with 556 university students. The instruments used were a sociodemographic questionnaire, the Perceived Motivational Climate in Sport Questionnaire (PMCSQ-2), the Beck Anxiety Inventory (BAI) and the Predimed questionnaire. Finally, outcomes revealed that the female gender had a negative relationship with adherence to a healthy dietary pattern, whilst males showed better adherence to the Mediterranean diet and higher levels of anxiety (AU)

La motivación juega un papel fundamental en la práctica del ejercicio físico, sin embargo, la ansiedad y el patrón dietético también juegan un rol clave, por tanto,la presente investigación refleja los objetivos de desarrollar un modelo explicativo del clima motivacional hacia el deporte y su relación con la dieta mediterránea y la ansiedad y contrastar el modelo estructural mediante un análisis multigrupo en función del sexo. Se ha realizado un estudio descriptivo comparativo de corte transversal con 556 estudiantes universitarios. Los instrumentos utilizados han sido un cuestionario sociodemográfico, el Cuestionario de Clima Motivacional Percibido en el Deporte (PMCSQ-2), el Inventario de Ansiedad de Beck (BAI) y el cuestionario Predimed. Finalmente, los resultados revelan que el sexo femenino tiene una relación negativa con la adherencia positiva a un patrón dietético saludable, mientras que el masculino muestra una mejor adherencia hacia la dieta mediterránea y mayores niveles de ansiedad (AU)

Study of the relationship between motivation towards physical activityand its relationship with anxiety and self-concept in the educational setting.A systematic review / Estudio de la relación entre la motivación hacia la práctica deactividad física y su relación con la ansiedad y el autoconcepto. Unarevisión sistemática

Motivation is one of the most studied elements in sport psychology due to its great potential to explain the attitude towards sport practice. Therefore, the present systematic review aims to analyse the effects of sport-oriented motivation on physical activity, anxiety and self-concept. The Web of Science and SCOPUS databases were used to select articles published between 2012 and 2022. The criteria established by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement were followed for the elaboration of the systematic review, with the final analysis sample comprising a total of 19 articles. Finally, the analysis of the data reveals that developing sport motivation from extrinsic or intrinsic values can help to decrease or increase anxiety levels. In addition, it is also observed that motivation developed through extrinsic values plays a key role in the abandonment of physical activity, due to the frustration and worsening of the mental image generated at a professional level when the proposed objectives are not achieved.(AU)

Actualmente, la motivación es uno de los elementos más estudiados en la psicología del deporte debido a su gran potencial para explicar la actitud hacia la práctica deportiva. Es por ello que la presente revisión sistemática presenta el objetivo de analizar los efectos de la motivación orientada hacia el deporte sobre la práctica de actividad física, la ansiedad y el autoconcepto. Para ello se han utilizado las bases de datos de Web of Science y SCOPUS eligiéndose los artículos publicados entre los años 2012 y 2022. Para la elaboración de la revisión sistemática se han seguido los criterios establecidos por la declaración de los Elementos de Información Preferidos para Revisiones Sistemáticas y Meta-Análisis (PRISMA), quedando la muestra final de análisis compuesta por un total de 19 artículos. Finalmente, el análisis de los datos revela que desarrollar una motivación deportiva desde valores extrínsecos o intrínsecos puede ayudar a disminuir o a aumentar los niveles de ansiedad. Además, también se observa como la motivación desarrollada a través de valores extrínsecos supone jugar un papel clave en el abandono de la práctica de actividad físico deportiva, debido a la frustración y empeoramiento de la imagen mental generada a nivel profesional cuando no se consiguen los objetivos propuestos.(AU)

The loss of a child, bereavement and the search for meaning: A systematic review of the most recent parental interventions.

The loss of a child is considered one of the most tragic experiences that parents can go through. The present systematic review aims to compile the most recently published interventions in bereavement support for these parents, being particularly interested in those made from a meaning-centered approach. The search for the units of analysis was guided by the standards of the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) Statement and was entered in Web of Science, Scopus and EBSCO, obtaining a total of 485 papers of which 21 have been included in this article. The results found are heterogeneous in terms of the type of intervention used and results, but they all seem to have something in common: the lack of research and reliable interventions that exist for this population. With this systematic review we intend to achieve a better understanding of these parents' needs and to highlight the enormous work that still remains ahead in order to make their bereavement experience a little less devastating.

Inteligencia emocional y adherencia a la dieta mediterránea. Un modelo de ecuaciones estructurales en adolescentes de educación primaria de la provincia de granada / Emotional intelligence and adherence to the Mediterranean diet. A model of structural equations in adolescents of primary education in the province of Granada

La adolescencia es una etapa de desarrollo, la cual juega un papel clave en lo que se refiere a la adquisición de una adherencia positiva a un patrón dietético saludable y en el control de las distintas emociones vivenciadas en el día a día. Teniendo en cuenta lo anterior, la presente investigación refleja los objetivos de desarrollar un modelo explicativo de la incidencia de la atención, claridad y reparación emocional sobre la adherencia hacia la dieta mediterránea en estudiantes del tercer ciclo de educación primaria y contrastar el modelo estructural mediante un análisis multigrupo en función del sexo. Para ello, se ha realizado un estudio descriptivo comparativo de corte transversal con 293 estudiantes del tercer ciclo de educación primaria. Los instrumentos utilizados han sido un cuestionario sociodemográfico, el test KIDMED y el Trait Meta-Mood Scale (TMMS-24). Finalmente, los resultados revelan una relación negativa entre la adherencia a la dieta mediterránea y la claridad y atención emocional en el sexo femenino.(AU)

Adolescence is a stage of development, which plays a key role in terms of acquiring positive adherence to a healthy dietary pattern and in controlling the different emotions experienced on a daily basis. Taking into account the above, the present investigation reflects the objectives of developing an explanatory model of the incidence of attention, clarity and emotional repair on adherence to the Mediterranean diet in students of the third cycle of primary education and contrasting the structural model through a multigroup analysis according to sex. For this, a cross-sectional comparative descriptive study has been carried out with 293 students of the third cycle of primary education. The instruments used have been a sociodemographic questionnaire, the KIDMED test and the Trait Meta-Mood Scale (TMMS-24). Finally, the results reveal a negative relationship between adherence to the Mediterranean diet and clarity and emotional attention in the female sex.(AU)

Autoconcepto, actividad física y sustancias nocivas: un modelo de ecuaciones estructurales / Self-Concept, Physical Activity and Harmful Substances: A Model of Structural Equations

La presente investigación pretende definir y contrastar un modelo explicativo del consumo de alcohol y tabaco, y la práctica de actividad física en función de las cinco dimensiones del autoconcepto en una muestra de 2.134 adolescentes de la provincia de Granada (España). Los instrumentos empleados fueron el Cuestionario de Autoconcepto Forma-5, Test para la Identificación de Trastornos en el Uso de Alcohol-AUDIT, Test para la Dependencia a la Nicotina-FTND y un cuestionario ad-hoc para controlar la práctica de actividad física. En esta investigación se planteó un modelo de ecuaciones estructurales que se ajustó de forma adecuada (χ2 = 79,476; gl = 8; p = 0,000; CFI = 0,968; NFI = 0,964; IFI = 0,968; RMSEA = 0,065). Los resultados obtenidos muestran una relación positiva entre el consumo de alcohol y el consumo de tabaco, y relaciones negativas entre el autoconcepto familiar, emocional y académico con el consumo de alcohol

The present research aims to define and contrast an explanatory model of alcohol and tobacco consumption, and the practice of physical activity according to the five dimensions of self-concept in a sample of 2.134 adolescents from the province of Granada (Spain). The instruments used were the Self-concept Questionnaire Form-5, Test for the Identification of Disorders in the Use of Alcohol-AUDIT, Test for the Nicotine-FTND Unit and an ad-hoc questionnaire to control the practice of physical activity. In this research, a model of structural equations was presented that was adjusted appropriately (χ2 = 79.476, gl = 8, p = 0,000, CFI = 0,968, NFI = 0,964, IFI = 0,968, RMSEA = 0,065). The results obtained show a positive relationship between alcohol consumption and tobacco consumption, and negative relationships between family, emotional and academic self-concept with alcohol consumption

Laparoscopic versus open surgery for rectal cancer: results of a prospective multicentre analysis of 4,970 patients.

OBJECTIVE: To compare laparoscopic versus open surgery for rectal cancer and analyse the results of the multidisciplinary audited project on total mesorectal excision conducted in Spain. BACKGROUND: The safety and therapeutic efficiency of laparoscopic surgery for rectal cancer are controversial due to the technical difficulties it involves. A deviation from the oncological principles of mesorectal excision would mean a potential increase in local recurrence and shorter survival. METHODS: This prospective non-randomised multicentre study includes 4,970 patients with rectal cancer. The study compares perioperative, postoperative, anatomicopathological and survival variables. RESULTS: Five hundred and sixty five patients were excluded. Of the remaining 4,405, 3,018 (68.51%) had open surgery (OS) and 1,387 (31.49%) laparoscopic surgery (LS). The rate of anterior resections was higher in the LS group. The rate of intraoperative tumour perforation, number of red blood cell concentrates transfused and length of hospital stay were greater in the OS group, whereas surgical time was longer in the LS group. The incidence of complications was 45.6% in the OS group and 38.3% in the LS group. Involvement of the circumferential and distal margin, as well as unsatisfactory and partially satisfactory quality of the mesorectum, were greater in the OS group. There were no differences for local recurrence and survival rates. CONCLUSIONS: According to these results, laparoscopic surgery is the best option for the surgical treatment of rectal cancer, with similar rates of local recurrence and survival, although there are oncological indicators in this study to suggest that these results can be improved with laparoscopic surgery.

The value of 18F-FDG PET/CT for assessing the response to neoadjuvant therapy in locally advanced rectal cancer.

PURPOSE: Neoadjuvant radiochemotherapy (RCT) is an accepted treatment for locally advanced rectal cancer (LARC) that improves surgical outcomes. If a pathological complete response is achieved, conservative surgery can be considered. The objective of our study was to assess the reliability of (18)F-FDG PET/CT for evaluating the response to neoadjuvant RCT in LARC. METHODS: We prospectively studied 41 patients diagnosed with LARC and candidates for neoadjuvant RCT. PET/CT was performed before RCT and again 7 weeks later. A visual and semiquantitative analysis was carried out. The pathological response was classified according to the Mandard tumour regression grade (TRG). We analysed: (a) the relationship between TRG and the result of the posttreatment PET/CT scan, and (b) the correlation between the percentage of pathological response and the percentage decrease in SUVmax according to the response index (RI). RESULTS: The mean SUVmax of the rectal lesions at diagnosis was 13.6 and after RCT 3.96. The mean RI was 65.32 %. Sensitivity was 88.88 %, specificity 92.86 %, positive predictive value 96 %, negative predictive value 81 %. Of the 41 patients, 8 had TRG I (all negative PET/CT); 6 had TRG II (5 negative, 1 positive PET/CT); 16 had TRG III (13 positive, 3 negative PET/CT); 9 had TRG IV (all positive PET/CT); 2 had TRG V (all positive PET/CT). Of the 14 patients classified as responders (TRG I, II), 13 (92.86 %) had negative PET/CT. Of the 27 patients classified as nonresponders (TRG III-V), 24 (88.88 %) had positive PET/CT. Differences were statistically significant (p < 0.0001). The RI in responders was 79.9 % and in nonresponders was 60.3 %. Differences were statistically significant (p < 0.037). CONCLUSION: PET/CT is a reliable technique for assessing response to neoadjuvant RCT in LARC, with a view to considering more conservative surgical treatment. The combination of the visual and semiquantitative analysis increases the diagnostic validity of PET/CT.

Randomized clinical trial comparing laparoscopic and open surgery in patients with rectal cancer.

BACKGROUND: The laparoscopic treatment of rectal cancer is controversial. This study compared surgical outcomes after laparoscopic and open approaches for mid and low rectal cancers. METHODS: Some 204 patients with mid and low rectal adenocarcinomas were allocated randomly to open (103) or laparoscopic (101) surgery. The surgical team was the same for both procedures. Most patients had stage II or III disease, and received neoadjuvant therapy with oral capecitabine and 50-54 Gy external beam radiotherapy. RESULTS: Sphincter-preserving surgery was performed in 78.6 and 76.2 per cent of patients in the open and laparoscopic groups respectively. Blood loss was significantly greater for open surgery (P < 0.001) and operating time was significantly greater for laparoscopic surgery (P = 0.020), and return to diet and hospital stay were longer for open surgery. Complication rates, and involvement of circumferential and radial margins were similar for both procedures, but the number of isolated lymph nodes was greater in the laparoscopic group (mean 13.63 versus 11.57; P = 0.026). There were no differences in local recurrence, disease-free or overall survival. CONCLUSION: Laparoscopic surgery for rectal cancer has a similar complication rate to open surgery, with less blood loss, rapid intestinal recovery, shorter hospital stay, and no compromise of oncological outcomes.

[Biological evaluation of a protein mixture intended for enteral nutrition]. / Evaluación biológica de la calidad de una mezcla de proteínas para uso en nutrición enteral.

UNLABELLED: Enteral nutrition is the best way to feed or supplement the diet when gastrointestinal tract functions of patients are partially or totally preserved. Whenever total enteral nutrition is needed, it represents the only source of nutrients for patients. Thus, it is mandatory to ensure that high biological value proteins are included in enteral formulae. OBJECTIVE: To assess the biological quality of a protein blend constituted by 50% potassium caseinate, 25% whey protein and 25% pea protein intended to be used in enteral nutrition products. MATERIALS AND METHODS: Forty Wistar rats (20 male and 20 female), with initial body weight of 51 g, where divided into four groups and feed for 10 days with: casein (Control), experimental protein blend (Experimental), liophylized normo- and hyperproteic enteral nutrition formulae adapted to the animal nutritional requirements (Normoproteic and Hyperproteic). Protein efficiency ratio (PER), apparent digestibility coefficient (ADC), relationship between retained and absorbed nitrogen (R/A) and relationship between retained and consumed nitrogen (R/I) where calculated. RESULTS: Experimental and control groups had similar values for all analysed indices (PER, ADC, R/A and R/I). These indices where also similar between normo and hyperproteic groups, but lower than experimental and control groups, except in PER, where normoproteic group was either similar to control and hiperproteic group. CONCLUSION: The quality of the protein blend used in this study is high. It is a good protein source to be used in the development of new enteral nutritional products.

Evaluación biológica de la calidad de una mezcla de proteínas para uso en nutrición enteral / Biological evaluation of a protein mixture intended for enteral nutrition

La nutrición enteral (NE) es el mejor recurso para complementar la alimentación de los pacientes, siempre que el tracto gastrointestinal este funcional. Cuando se indica NE total, ésta representa la fuente exclusiva de alimento, por lo que es importante asegurar un alto valor biológico de la proteína incluida. Objetivo: Valorar la calidad biológica de una mezcla proteica constituida por 50% de caseinato potásico, 25%de proteínas de suero lácteo y 25% de proteína de guisante para ser utilizada en productos de nutrición enteral. Material y métodos: 40 ratas Wistar (20 hembras y 20machos), con peso medio de 51 g, divididas en cuatro grupos. Dos de ellos fueron alimentados con dietas específicas para ratas: uno con caseína (Control) y otro con la proteína experimental (Experimental); los otros fueron alimentados con productos de NE diseñados para humanos y adaptados a los requerimientos de las ratas (Normoproteico e Hiperproteico), durante 10 días. Se determinó el índice de eficacia proteica (PER), el coeficiente de digestibilidad aparente (CDA), la relación nitrógeno retenido/ absorbido (R/A) y la relación nitrógeno retenido/ingerido (R/I).Resultados: El grupo experimental y el grupo control presentaron valores similares en todos los índices analizados. Asimismo, estos índices fueron similares entre los grupos normo e hiperproteicos, pero menores respecto a los grupos anteriores, exceptuando al PER, el cual fue a su vez similar entre el grupo normoproteico y el control. Conclusión: La calidad de la mezcla proteica utilizada es alta y adecuada para ser incluida en el desarrollo de nuevos productos para nutrición enteral

Enteral nutrition is the best way to feed or supplement the diet when gastrointestinal tract functions of patients are partially or totally preserved. Whenever total enteral nutrition is needed, it represents the only source of nutrients for patients. Thus, it is mandatory to ensure that high biological value proteins are included in enteral formulae. Objective: To assess the biological quality of a protein blend constituted by 50% potassium casein ate, 25% whey protein and 25% pea protein intended to be used in enteral nutrition products. Materials and methods: Forty Wistar rats (20 male and20 female), with initial body weight of 51 g, where divided into four groups and feed for 10 days with: casein (Control), experimental protein blend (Experimental), liophylized normo- and hyperproteic enteral nutrition formulae adapted to the animal nutritional requirements (Normoproteic and Hyperproteic). Protein efficiency ratio (PER), apparent digestibility coefficient (ADC), relationship between retained and absorbed nitrogen (R/A)and relationship between retained and consumed nitrogen(R/I) where calculated. Results: Experimental and control groups had similar values for all analysed indices (PER, ADC, R/A and R/I).These indices were also similar between normo and hyperproteic groups, but lower than experimental andcontrol groups, except in PER, where normoproteic group was either similar to control and hiperproteic group. Conclusion: The quality of the protein blend used in this study is high. It is a good protein source to be used in the development of new enteral nutritional products

[Laparoscopic nephrectomies: initial experience of a community hospital]. / Nefrectomías laparoscópicas: experiencia inicial de un hospital comunitario.

We present our initial experience with 34 laparoscopic nephrectomies performed in a 29 months period of time. 32% of the patients with renal tumor (clinical stage T1-T2) and the others for benign pathology. Average surgical time was 131 minutes (70-210). Average bleeding was 330 ml (50-2500). Average time of hospitalization was 2,7 days (1-14). 62% of patients were discharged to home between the first and second day post surgery. One patient with tumor required conversion to open surgery for an hilium bleeding. There were 3 serious complications (9%), included one patient died by septic shock and one lesion of left colon that required segmental colectomy. The results of this initial serie are promissory and a special care should be taken in selection of patients to achieve good results with low surgical morbidity.

Motor threshold in transcranial magnetic stimulation: comparison of three estimation methods.

AIMS: Motor threshold (MT) is an important parameter for the practice of transcranial magnetic stimulation. Our goal was to compare three methods to estimate MT in a clinical setting. METHODS: Comparison of three MT estimation algorithms: 1) the Rossini-Rothwell method consists in lowering stimulus intensity until only five positive responses out of 10 trials are recorded, defining MT; 2) the Mills-Nithi method considers the MT as the mean of an upper threshold (10 positive out of 10 trials) and a lower threshold (0 out of 10 trials); 3) the supervised parametric method estimates the MT by fitting (mathematically and graphically) a sigmoid function on raw data obtained by stimulation at variable intensities. Six MT estimations (two per method) were recorded in a single session in 10 healthy subjects. RESULTS: The within-subject variation of MT (expressed as % of the mean MT+/-standard deviation) during a single session was of 8.5+/-7.2% for the Rossini-Rothwell method, 8.7+/-5.7% for the Mills-Nithi method and 9.5+/-4.0% for the supervised parametric method. No significant differences in variability of MT estimation were found between the methods, but the Rossini-Rothwell method was significantly shorter (half the number of stimuli compared to the two other methods). CONCLUSION: In our setting, Rossini-Rothwell method was superior to the two other methods. The variability of MT estimation measured in our study is important, yet acceptable for clinical applications. However, this variability can be a source of considerable errors in excitability studies and should be a focus of future research.

Nefrectomías laparoscópicas: experiencia inicial de un hospital comunitario / Laparoscopic nephrectomies: initial experience of a community hospital

Presentamos nuestra experiencia inicial con 34 nefrectomías laparoscópicas operadas en un período de 29 meses. El 32% de los pacientes con tumor renal (estadio clínico T1-T2) y el resto por patología benigna. El tiempo quirúrgico promedio fue de 131 minutos (70-210). El sangramiento promedio fue de 330 ml (50-2.500). El tiempo de hospitalización promedio fue de 2,7 días (1-14). El 62% de los pacientes fue dado de alta entre el primer y segundo día post quirúrgico. Un paciente con tumor requirió conversión a cirugía abierta debido a un sangramiento del hilio. Hubo 3 complicaciones graves (9%), incluidas un paciente fallecido por shock séptico y una lesión de colon izquierdo que requirió de colectomía segmentaría. Los resultados de esta serie inicial son promisorios y se debe tener un especial cuidado en la selección de los pacientes para lograr resultados óptimos con baja morbilidad quirúrgica

We present our initial experience with 34 laparoscopic nephrectomies performed in a 29 months period of time. 32% of the patients with renal tumor (clinical stage T1-T2) and the others for benign pathology. Average surgical time was 131 minutes (70-210). Average bleeding was 330 ml (50-2500). Average time of hospitalization was 2,7 days (1-14). 62% of patients were discharged to home between the first and second day post surgery. One patient with tumor required conversion to open surgery for an hilium bleeding. There were 3 serious complications (9%), included one patient died by septic shock and one lesion of left colon that required segmental colectomy. The results of this initial serie are promissory and a special care should be taken in selection of patients to achieve good results with low surgical morbidity

Morbilidad perioperatoria y resultados a mediano plazo de la malla de prolene suburetral según índice de masa corporal / Post-operatory morbility and sub-uretral prolene tape results in the medium term periods according to body mass

Este trabajo muestra los resultados de la malla suburetral sin tensión según el índice de masa corporal. Durante un período de 44 meses, 233 pacientes fueron operadas con una malla tipo TVT. Las pacientes fueron clasificadas según índice de masa corporal (IMC) como normales (IMC <25, n=37), sobrepeso (IMC 25-30, n=95), obesas (IMC 30-35, n=66) y obesas moderadas-severas (IMC >35, n=35). No hubo diferencias en cuanto a complicaciones (perforación, retención urinaria, infección). La tasa de continencia objetiva para los cuatro grupos (normales, sobrepeso, obesidad, obesidad moderada-severa) fue de: 92 por ciento, 89 por ciento, 90 por ciento y 88 por ciento, respectivamente (p=0,2). Los últimos dos grupos presentaron mayor incidencia de urgencia "de novo" (12 por ciento y 10 por ciento vs 3 por ciento y 4 por ciento). (p <0,05). La obesidad no sería un factor de riesgo para el éxito de la malla y al igual que otros estudios, coincidimos que es la técnica quirúrgica de elección en pacientes con obesidad moderada y severa.

¿Son los cánceres de próstata clínicamente T1c y Gleason menor o igual a 6 insignificantes?: características clínicas y patológicas de 127 piezas de prostatectomía radical / Are the clinically T1c and Gleason prostate cancers lower or equal to 6 insignificant?: clinical and pathological characteristics of 127 pieces of radical prostactectomy

Este trabajo muestra una revisión de 127 pacientes sometidos a prostatectomía radical con un Gleason en la punción menor o igual a 6, compromiso de un solo cilindro y clínicamente T1c. Los resultados de la anatomía patológica mostraron que un 30 por ciento de los pacientes tienen un Gleason mayor o igual a 7 y 21 por ciento tienen compromiso extraglandular (pT3). Los márgenes quirúrgicos fueron positivos en 13,3 por ciento de los casos. Estos pacientes portadores de un tumor "insignificante", están en riesgo de estar subgraduados y debieran ser manejados en forma agresiva mediante la cirugía radical.

Pielo/ureterolitectomía por retroperitoneoscopia: análisis de 10 casos / Pielo/ureterolithtomy through retroperitoneoscopy: analysis of 10 cases

Este trabajo muestra los resultados de la pielo/ureterolitectomía por retroperitoneoscopia. Esta técnica se desarrolló en 10 pacientes portadores de una litiasis piélica o ureteral mayor a 1 cm de diámetro. La cirugía fue exitosa en el 90 por ciento de los casos (9/10). El tiempo quirúrgico promedio fue de 110 minutos. Un paciente presentó filtración urinaria requiriendo de catéter ureteral. Esta cirugía es segura y efectiva y debiera realizarse cada vez que se requiere una cirugía abierta.

A propósito de un caso de reimplante de mano / Based on one case of hand reimplanted

Describir el tratamiento general de los reimplantes y observar la evolución de un paciente al que se le realizó uno a nivel del tercio distal del antebrazo. Varón de 41 años con una amputación de mano derecha a consecuencia de un corte con una tijera de aluminio. Desde la entrada al centro hospitalario y posterior reimplante, el paciente realizó el tratamiento fisioterápico consiguiendo un aumento de la movilidad en muñeca y dedos; por otro lado, hay que tener en cuenta que los resultados finales de los reimplantes son a muy largo plazo y con posteriores intervenciones quirúrgicas (AU)