Rápida cicatrización de la úlcera venosa con técnica TAPIRS-LF con láser, espuma y vendajes multicapa / Fast Healing of venous ulcers with Terminal, Axial and Perforator Interruption of the Reflux Source (TAPIRS-LF) with Laser- Foam and multilayer bandage

Introducción: Las técnicas quirúrgicas usadas para el control de la hipertensión venosa poco a poco se han remplazado por procedimientos mínimamente invasivos (térmicos y tumescentes) como el láser intravenoso (no térmicos, no tumescentes) como escleroterapia con espuma ecoguiada. El objetivo de este estudio fue determinar el tiempo de cicatrización de la úlcera venosa (UV) con un protocolo Terminal, Axial and Perforator Interruption of the Reflux Source with Laser and Foam más curas con vendaje multicapa hasta cicatrización de la herida. Material y métodos: Ensayo no controlado en pacientes con UV (CEAP C6) realizado en la consulta externa de cirugía vascular, durante 2015-2016. Se incluye a 27 pacientes mayores de 18 años, portadores de una UV con eje axial insuficiente e índice tobillo-brazo mayor a 0,8. Se analizaron en total 27 extremidades. Se realizó láser endoluminal 1470 nm en eje axial, inyección de escleroespuma (técnica de Tessari) usando polidocanol al 3% en el sistema venoso superficial con oclusión del eje venoso axial, perforantes y terminal asociados al lecho de la úlcera, junto con aplicación de vendaje multicapa y curas según las condiciones de la herida. Se realizaron controles clínicos y fotográficos en cada cura, aplicación de vendaje multicapa hasta el cierre de la UV y controles ecográficos a la semanas 4, 12 y 24. Resultados: El promedio de edad fue de 59,6 años, la duración de la úlcera activa previo al tratamiento fue de 11,7 meses, con diámetro 15,06 cm2 y se obtuvo un 92,5% de cicatrización de UV a la semana 8. Conclusión: La oclusión endoluminal venosa usando la técnica Terminal, Axial and Perforator Interruption of the Reflux Source with Laser and Foam (cierre de los ejes axiales, perforantes y terminales insuficientes) usando una técnica mixta de láser endoluminal y espuma, junto la aplicación de vendaje multicapa es una técnica que favorece la rápida cicatrización de las UV

Introduction: The traditional surgical techniques are being replaced by minimally invasive procedures, such as Endovenous Laser (Thermal, Tumescent), and ultrasound foam sclerotherapy (Non-Thermal, Non-Tumescent). The aim of this study was to determine the healing time and rate of venous ulcers (VU) using a Terminal, Axial and Perforator Interruption of the Reflux Source (TAPIRS-LF) protocol. This included Endovascular Laser Treatment and endoluminal venous occlusion with ultrasound-guided foam and a multilayer bandage system until ulcer healing was achieved. Material and methods: A prospective non-controlled trial was conducted on patients with chronic venous leg ulcers (CEAP [clinical, etiological, anatomical and pathological elements] classification C6) during 2015 and 2016. A total of 27 patients aged 18 years and over, presenting with venous insufficiency, VU, and an ankle-brachial index greater than 0.8, were included, with a total of 27 extremities being analysed. All of the patients were subjected to thermal and non-thermal endoluminal occlusion, with endovenous laser treatment in axial venous system, with ultrasound-guided foam in the distal axial superficial venous system and perforator and terminal veins near to the ulcer, using the Tessari method with 3% polidocanol. Follow-up was carried out every week and a Doppler test was performed after 4, 12, and 24 weeks. Results: The mean age of the patients was 59.6 years. The active ulcer duration prior to treatment was 11.7 months. The mean VU diameter was 15.06 cm2, and 92.5% VU were seen to be healing at 8 weeks. Conclusions: The minimally invasive ablation using Terminal, Axial and Perforator Reflux with compression in patients with active VU results in a faster healing during the treatment of chronic venous ulcers

Radiofrecuencia percutánea guiada por ecografía en el tratamiento de masas renales pequeñas / Ultrasound-guided percutaneous radiofrequency ablation for treating small renal masses

Introducción: El objetivo del presente estudio ha sido analizar y evaluar la experiencia en ablación por radiofrecuencia de masas renales pequeñas mediante abordaje percutáneo guiado por ecografía con contraste en pacientes no aptos para la resección quirúrgica, y/o que no aceptaron vigilancia u observación. Material y método: Desde enero de 2007 hasta agosto de 2015 se han realizado 164 tratamientos en un total de 148 pacientes. Se presentan las características clínico-radiológicas de los pacientes, los resultados oncológicos y funcionales a corto y medio plazo. Resultados: La tasa de éxito técnico global fue del 97,5%, con éxito final en una sesión en el 100% de lesiones ≤ 3 cm y el 92% en lesiones entre 3-5 cm. El diámetro medio de los tumores en los que el tratamiento fue finalmente exitoso fue de 2,7 cm, mientras que el diámetro medio de estos fallos fue de 3,9 cm (p < 0,05). No se observaron diferencias estadísticamente significativas en la creatinina sérica y en el filtrado glomerular estimado. Conclusiones: A pesar de la baja tasa de biopsia renal positiva en la serie, la aplicación de radiofrecuencia percutánea ecoguiada en el tratamiento de lesiones renales pequeñas parece un procedimiento eficaz y seguro, con un mínimo impacto sobre la función renal, un aceptable control oncológico a corto y medio plazo, con una baja tasa de complicaciones

Introduction: The objective of this study was to analyse and assess the experience with radiofrequency ablation of small renal masses using a contrast-enhanced, ultrasound-guided percutaneous approach for patients who are not suitable for surgical resection and/or who refused surveillance or observation. Material and method: From January 2007 to August 2015, 164 treatments were performed on a total of 148 patients. We present the patients’ clinical-radiological characteristics, oncological and functional results in the short and medium term. Results: The overall technical success rate was 97.5%, with a successful outcome in 1 session in 100% of the lesions ≤ 3cm and 92% in lesions measuring 3-5cm. The mean tumour diameter in the patients for whom the treatment was ultimately successful was 2.7 cm, while the mean diameter of these in the unsuccessful operations was 3.9 cm (P < .05). There were no statistically significant differences in the serum creatinine levels and estimated glomerular filtration rates. Conclusions: Despite the low rate of positive renal biopsies in the series, ultrasound-guided percutaneous radiofrequency ablation for treating small renal lesions appears to be an effective and safe procedure with a minimum impact on renal function, an acceptable oncologic control in the short and medium term and a low rate of complications

Ultrasound-guided percutaneous radiofrequency ablation for treating small renal masses. / Radiofrecuencia percutánea guiada por ecografía en el tratamiento de masas renales pequeñas.

INTRODUCTION: The objective of this study was to analyse and assess the experience with radiofrequency ablation of small renal masses using a contrast-enhanced, ultrasound-guided percutaneous approach for patients who are not suitable for surgical resection and/or who refused surveillance or observation. MATERIAL AND METHOD: From January 2007 to August 2015, 164 treatments were performed on a total of 148 patients. We present the patients' clinical-radiological characteristics, oncological and functional results in the short and medium term. RESULTS: The overall technical success rate was 97.5%, with a successful outcome in 1 session in 100% of the lesions≤3cm and 92% in lesions measuring 3-5cm. The mean tumour diameter in the patients for whom the treatment was ultimately successful was 2.7cm, while the mean diameter of these in the unsuccessful operations was 3.9cm (P<.05). There were no statistically significant differences in the serum creatinine levels and estimated glomerular filtration rates. CONCLUSIONS: Despite the low rate of positive renal biopsies in the series, ultrasound-guided percutaneous radiofrequency ablation for treating small renal lesions appears to be an effective and safe procedure with a minimum impact on renal function, an acceptable oncologic control in the short and medium term and a low rate of complications.

Rápida cicatrización de la úlcera venosa con técnica TAPIRS (ecoesclerosis del eje axial, perforantes y terminal insuficientes) más vendaje multicapa. Ensayo clínico / Rapid healing of venous ulcers with terminal, axial and perforator interruption of the reflux source (TAPIRS) plus multilayer bandage: A clinical trial

INTRODUCCIÓN: Las úlceras venosas (UV) son las úlceras más frecuentes de las extremidades, y generan morbilidad importante y altos costos para los sistemas de salud. Las técnicas quirúrgicas usadas para el control de la hipertensión venosa han venido siendo remplazadas con mayor frecuencia por procedimientos mínimamente invasivos como la escleroespuma. OBJETIVO: Determinar el tiempo de cicatrización de la UV con un protocolo de manejo que incluyó la oclusión venosa endoluminal con escleroespuma ecoguiada del eje axial, perforantes y terminal insuficientes (técnica TAPIRS) más curaciones con vendaje multicapas (VM) hasta la cicatrización de la herida. MATERIAL Y MÉTODOS: Ensayo clínico prospectivo no controlado (cuasiexperimental) en pacientes con UV (CEAP C6) realizado en la consulta externa de cirugía vascular, durante 2013-2014. Se incluye a 17 pacientes mayores de 18 años, portadores de una UV con eje axial insuficiente, e índice tobillo-brazo mayor a 0,8. Se analizaron en total 17 extremidades. Se realizó inyección de escleroespuma (técnica de Tessari) usando polidocanol al 3% en el sistema venoso superficial con oclusión del eje venoso axial, perforantes y terminal asociados al lecho de la úlcera, guiada por ecodoppler junto con aplicación de VM y curación según las condiciones de la herida. Se realizaron controles clínicos y fotográficos en cada curación, aplicación de VM hasta el cierre de la UV y controles ecográficos a la 4 y 12 semanas. RESULTADOS: El promedio de edad fue de 56,4 años, la duración de la úlcera activa previamente al tratamiento fue de 2,96 años, todas las UV cicatrizaron antes de las 7 semanas, con una tasa de cierre de 3,92 cm2/semana y el tiempo de cierre de la úlcera fue de 3,92 semanas (24 días). CONCLUSIÓN: La oclusión endoluminal venosa usando la técnica TAPIRS (cierre de los ejes axiales, perforantes y terminales insuficientes con escleroespuma ecoguiada) junto a la aplicación de VM es una técnica que favorece la rápida cicatrización de las UV

INTRODUCTION: Chronic venous ulcers (CVU) are the most common ulcers occurring in the lower limbs, having a high morbidity and place a high financial strain on the health system. The traditional surgical techniques are being replaced by minimally invasive procedures, such as foam sclerotherapy. OBJECTIVE: The aim of this study was to determine CVU healing times and rates using the terminal, axial and perforator interruption of the reflux source (TAPIRS) protocol, which included an endoluminal venous occlusion with ultrasound-guided foam and a multilayer bandage system until achieving ulcer healing. MATERIAL AND METHODS: A prospective uncontrolled trial was conducted on patients with chronic venous leg ulcers (CEAP [clinical, etiological, anatomical and pathological elements] C6) during 2013 and 2014. A total of 17 patients aged 18 years and over, presenting with venous insufficiency, CVU, and an ankle-brachial index greater than 0.8, were included, and total of 17 limbs were analysed. All of the patients were subjected to endoluminal occlusion with ultrasoundguided foam in the axial superficial venous system and perforator and terminal veins near to the ulcer, using Tessari method with 3% polidocanol. Follow-up was carried out at every week and a doppler test was conducted after 4 and 12 weeks. RESULTS: The mean age of the patients was 56.4 years. The active ulcer duration prior to treatment was 2.96 years. The study showed that all CVU were healing before 7 weeks, the healing rate was 3.92 cm2/week, and the time until the ulcer was healed was 3.53 weeks (24 days). CONCLUSIONS: The minimally invasive ablation of terminal, axial and perforator reflux with compression in patients is a technique that leads to faster healing times of CVU

Determination and characterization of glycerophospholipids in olive fruit and oil by nonaqueous capillary electrophoresis with electrospray-mass spectrometric detection.

A nonaqueous capillary electrophoresis method with electrospray-mass spectrometric detection was developed to study the glycerophospholipid fraction in olive fruit and olive oil samples. In olive fruits, where the information available about the phospholipid fraction was very scarce, results obtained in this work allowed us to complete and improve this knowledge. The glycerophospholipid fraction of the olive fruit samples analyzed was composed of phosphatidylcholine (PC), phosphatidylethanolamine (PE), lysophosphatidylethanolamine (lyso-PE), phosphatidylinositol (PI), phosphatidic acid (PA), lysophosphatidic acid (lyso-PA), and phosphatidylglycerol (PG). Differences in the relative abundance of the glycerophospholipid classes determined were observed as a function of the botanical and geographical origin of the olive fruits analyzed. Interestingly, the olive stone and pulp analyzed also showed different glycerophospholipid compositions. For olive oil, five glycerophospholipids (lyso-PA, PC, PE, lyso-PE, and PG) were detected. Finally, identification of the main molecular species in the different glycerophospholipid classes for the olive fruit samples analyzed was accomplished by tandem mass spectrometric experiments and information from the literature.

Characterization of carboxylate-terminated carbosilane dendrimers and their evaluation as nanoadditives in capillary electrophoresis for vegetable protein profiling.

Protein profiles are becoming an important tool to differentiate and classify varieties of several cultivars and to obtain a specific fingerprint for them. The use of protein profiles for these purposes needs to achieve high separation efficiencies to obtain a high number of well resolved peaks. In this work, carbosilane dendrimers with interior carbon-silicon bonds and negatively charged in the dendrimer surface with carboxylic acid as functional groups were employed as nanoadditives to separate soybean and olive seeds proteins. First, these dendrimers were characterized using CE to evaluate their possible impurities. A potentiometric titration was later carried out to determine their pK(a) values. Afterwards, the characterized dendrimers were used to improve the protein profiles obtained by EKC for vegetable proteins. Different dendrimer generations (G1, G2, and G3) and concentrations (0.01-1% m/v) were tested. The highest dendrimer generation G3 at 0.1% (m/v) allowed observing the best protein profiles for soybean and olive seeds. These results demonstrate that carboxylate-terminated carbosilane dendrimers are attractive nanoadditives in EKC for the effective separation of vegetable proteins.

Analysis of olive allergens.

Olive pollen is one of the most important causes of seasonal respiratory allergy in Mediterranean countries, where this tree is intensely cultivated. Besides this, some cases of contact dermatitis and food allergy to the olive fruit and olive oil have been also described. Several scientific studies dealing with olive allergens has been reported, being the information available about them constantly increasing. Up to date, twelve allergens have been identified in olive pollen while just one allergen has been identified in olive fruit. This review article describes considerations about allergen extraction and production, also describing the different methodologies employed in the physicochemical and immunological characterization of olive allergens. Finally, a revision of the most relevant studies in the analysis of both olive pollen and olive fruit allergens is carried out.

Preference in the nodulation of Phaseolus vulgaris cv. RAB39. II. Effect of delayed inoculation or low cell representation in the inoculant on nodule occupancy by Rhizobium tropici UMR1899.

Common bean (Phaseolus vulgaris L.) is a traditional crop in much of Latin America, where it is often planted into soils containing numerous, sometimes ineffective, indigenous rhizobia. The presence of these indigenous organisms can limit response to inoculation. Because of this, we have sought bean cultivars that will nodulate preferentially with the inoculant strain, and have previously reported on the preference between the bean cultivar RAB39 and strains of Rhizobium tropici. We have detailed this interaction using the inoculant-quality strain UMR1899. In the present study the root tip marking (RTM) technique was used to demonstrate that this preference in nodulation was evident, even when inoculation with UMR1899 was delayed up to 8 relative to that with Rhizobium etli UMR1632. In contrast to studies with other legumes, roots of RAB39 were not predisposed to nodulate with UMR1632, even though preexposed to this strain for considerable periods of time. The presence of UMR1899 actually reduced nodulation by UMR1632 substantially, even when inoculation with UMR1899 was significantly delayed. When UMR1899 and UMR1632 were applied to separate halves of a split-root system, the number of nodules on the side receiving UMR1632 was less than for the half root inoculated with UMR1899, but the differences were not significant. This suggests that the preference response is not systemic but requires proximity between the strains involved. UMR1899 produced more than 50% of the nodules even when the ratio of UMR1632:UMR1899 in the inoculant was 10:1. The results are further evidence of a stable and marked preference of RAB39 for UMR1899, which warrants a more detailed study at the field level.Key words: Phaseolus vulgaris L., common bean, delayed inoculation, strain preference, cell proportions.