Objective To investigate the indications, operation techniques and clinical effects of a modified technique of Indiana pouch. Methods A modified technique of Indiana pouch was performed on 5 patients following radi...Objective To investigate the indications, operation techniques and clinical effects of a modified technique of Indiana pouch. Methods A modified technique of Indiana pouch was performed on 5 patients following radical cystectomy. Results 5 cases showed satisfactory therapeutic effects with of follow-up range of 6 to 30 months. All patients were continent day and night with easy catherization. The number of micturations was 5 to 6 times in the daytime and 1 to 3 times in the nighttime. Cystography of 4 cases showed that pouches were spheroidic and volumes were between 400 to 500 ml. Conclusion The advantages of the modified Indiana pouch are as follows: easy manipulation; low tension and high volume in pouches; no reflux; satisfactory urinary continence and few complications. Therefore, it is worthy of clinical popularization.展开更多
Objective:To review the most used robot-assisted cutaneous urinary diversion(CUD)after radical cystectomy for bladder cancer and create a unified compendium of the different alternatives,including new consistent image...Objective:To review the most used robot-assisted cutaneous urinary diversion(CUD)after radical cystectomy for bladder cancer and create a unified compendium of the different alternatives,including new consistent images Methods:A non-systematic review of the literature with the keywords“bladder cancer”,“cutaneous urinary diversion”,and“radical cystectomy”was performed.Results:Twenty-four studies of intracorporeal ileal conduit(ICIC)and two of intracorporeal Indiana pouch(ICIP)were included in the analysis.Regarding ICIC,the patients’age ranged from 60 to 76 years.The operative time to perform a urinary diversion ranged from 60 to 133 min.The total estimated blood loss ranged from 200 to 1117 mL.The rate of positive surgical margins ranged from 0%to 14.3%.Early minor and major complication rates ranged from 0%to 71.4%and from 0%to 53.4%,respectively.Late minor and major complication rates ranged from 0%to 66%and from 0%to 32%,respectively.Totally ICIP data are limited to one case report and one clinical series.Conclusion:The most frequent type of CUD is ICIC.Randomized studies comparing the performance of the different types of CUD,the performance in an intra-or extracorporeal manner,or the performance of a CUD versus orthotopic ileal neobladder are lacking in the literature.To this day,there are not enough quality data to determine the supremacy of one technique.This manuscript represents a compendium of the most used CUD with detailed descriptions of the technical aspects,operative and perioperative outcomes,and new consistent images for each technique.展开更多
The existence of the thorium element in the ores from the Atacama region, Chile, and its importance in the activities of the nuclear industry, have generated the interest of the Chilean Nuclear Energy Commission (CChE...The existence of the thorium element in the ores from the Atacama region, Chile, and its importance in the activities of the nuclear industry, have generated the interest of the Chilean Nuclear Energy Commission (CChEN) to study the technical feasibility of its recovery, like ThO2 through the implementation of hydrometallurgical techniques, such as leaching, solvent extraction, among others. The present work has become a report about the research carried out in the Extractive Metallurgy Area of the Department of Advanced Materials of CChEN, whose objective is to know the behavior of the thorium element when the mineral carrier is leached. The leaching tests were carried out in a glass reactor in batch mode, by mechanical agitation, varying different operational parameters, such as: type of leaching solution, concentration of acid in the solution, system temperature and granulometry of the mineral. The results indicate that there is technical feasibility for the recovery of thorium by leaching the mineral carrier with hydrochloric and/or sulfuric solution. The highest recovery of thorium for a sulfuric solution was 70.0% and for a hydrochloric solution of 83.8%, so the process presents a good efficiency in both cases. For a hydrochloric solution, the mathematical model of the thorium recovery efficiency obtained is: Y=31.14+26.25*X1+8.69*X2−0.82*X3+9.5*X12−0.83*X13−3.71*X23−1.83*X123+6.45 The concentration of HCl and temperature, as well as their interaction, significantly affect the recovery of thorium for Sierra Indiana mineral, as well as temperature and granulometry. The previous model gives a good representativeness of 99.98%. For a sulfuric solution, the mathematical model of the thorium recovery efficiency obtained is: Y=29.78+25.92*X1+0.99*X2−1.05*X3−2.05*X12−9.84*X13−5.26*X23−3.87*X123+15.18 The model indicates that the recovery of thorium for the mineral is significantly affected by the concentration of sulfuric acid, and to a lesser degree by the temperature and granulometry. The model provides a representativeness of 98.3%.展开更多
文摘Objective To investigate the indications, operation techniques and clinical effects of a modified technique of Indiana pouch. Methods A modified technique of Indiana pouch was performed on 5 patients following radical cystectomy. Results 5 cases showed satisfactory therapeutic effects with of follow-up range of 6 to 30 months. All patients were continent day and night with easy catherization. The number of micturations was 5 to 6 times in the daytime and 1 to 3 times in the nighttime. Cystography of 4 cases showed that pouches were spheroidic and volumes were between 400 to 500 ml. Conclusion The advantages of the modified Indiana pouch are as follows: easy manipulation; low tension and high volume in pouches; no reflux; satisfactory urinary continence and few complications. Therefore, it is worthy of clinical popularization.
文摘Objective:To review the most used robot-assisted cutaneous urinary diversion(CUD)after radical cystectomy for bladder cancer and create a unified compendium of the different alternatives,including new consistent images Methods:A non-systematic review of the literature with the keywords“bladder cancer”,“cutaneous urinary diversion”,and“radical cystectomy”was performed.Results:Twenty-four studies of intracorporeal ileal conduit(ICIC)and two of intracorporeal Indiana pouch(ICIP)were included in the analysis.Regarding ICIC,the patients’age ranged from 60 to 76 years.The operative time to perform a urinary diversion ranged from 60 to 133 min.The total estimated blood loss ranged from 200 to 1117 mL.The rate of positive surgical margins ranged from 0%to 14.3%.Early minor and major complication rates ranged from 0%to 71.4%and from 0%to 53.4%,respectively.Late minor and major complication rates ranged from 0%to 66%and from 0%to 32%,respectively.Totally ICIP data are limited to one case report and one clinical series.Conclusion:The most frequent type of CUD is ICIC.Randomized studies comparing the performance of the different types of CUD,the performance in an intra-or extracorporeal manner,or the performance of a CUD versus orthotopic ileal neobladder are lacking in the literature.To this day,there are not enough quality data to determine the supremacy of one technique.This manuscript represents a compendium of the most used CUD with detailed descriptions of the technical aspects,operative and perioperative outcomes,and new consistent images for each technique.
文摘The existence of the thorium element in the ores from the Atacama region, Chile, and its importance in the activities of the nuclear industry, have generated the interest of the Chilean Nuclear Energy Commission (CChEN) to study the technical feasibility of its recovery, like ThO2 through the implementation of hydrometallurgical techniques, such as leaching, solvent extraction, among others. The present work has become a report about the research carried out in the Extractive Metallurgy Area of the Department of Advanced Materials of CChEN, whose objective is to know the behavior of the thorium element when the mineral carrier is leached. The leaching tests were carried out in a glass reactor in batch mode, by mechanical agitation, varying different operational parameters, such as: type of leaching solution, concentration of acid in the solution, system temperature and granulometry of the mineral. The results indicate that there is technical feasibility for the recovery of thorium by leaching the mineral carrier with hydrochloric and/or sulfuric solution. The highest recovery of thorium for a sulfuric solution was 70.0% and for a hydrochloric solution of 83.8%, so the process presents a good efficiency in both cases. For a hydrochloric solution, the mathematical model of the thorium recovery efficiency obtained is: Y=31.14+26.25*X1+8.69*X2−0.82*X3+9.5*X12−0.83*X13−3.71*X23−1.83*X123+6.45 The concentration of HCl and temperature, as well as their interaction, significantly affect the recovery of thorium for Sierra Indiana mineral, as well as temperature and granulometry. The previous model gives a good representativeness of 99.98%. For a sulfuric solution, the mathematical model of the thorium recovery efficiency obtained is: Y=29.78+25.92*X1+0.99*X2−1.05*X3−2.05*X12−9.84*X13−5.26*X23−3.87*X123+15.18 The model indicates that the recovery of thorium for the mineral is significantly affected by the concentration of sulfuric acid, and to a lesser degree by the temperature and granulometry. The model provides a representativeness of 98.3%.
