5 research outputs found

    Image_2_Perioperative, functional, and oncological outcomes of robotic vs. laparoscopic partial nephrectomy for complex renal tumors (RENAL score ≥7): an evidence-based analysis.tif

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    ObjectiveTo evaluate the current literature comparing outcomes of robotic partial nephrectomy (RPN) versus laparoscopic partial nephrectomy (LPN) treating complex renal tumors (RENAL nephrometry score ≥7).MethodsWe systematically searched the Cochrane Library, PubMed, Google Scholar, EMBASE, and Scopus databases up to March 2023. Review Manager 5.4 performed a pooled analysis of the data for random effects. Besides, sensitivity and subgroup analyses to explore heterogeneity, Newcastle-Ottawa scale, and GRADE to evaluate study quality and level of evidence.ResultsEight observational studies comprising 1346 patients (RPN: 695; LPN: 651) were included in this study. Compared to LPN, RPN had a shorter operative time (OT) (weight mean difference [WMD]: -14.73 min; p = 0.0003), shorter warm ischemia time (WIT) (WMD: -3.47 min; p = 0.002), lower transfusion rate (odds ratio [OR]: 0.66; p = 0.04), shorter length of stay (LOS) (WMD: -0.65 days; p ConclusionPatients with complex renal tumors (RENAL score ≥7), RPN is superior to LPN in decreasing the OT, WIT, LOS, transfusion rate, change in eGFR and the incidence of intraoperative complications while maintaining oncological control and avoiding a decline in renal function. However, our findings need further validation in a large-sample prospective randomized study.</p

    Table_1_Perioperative, functional, and oncological outcomes of robotic vs. laparoscopic partial nephrectomy for complex renal tumors (RENAL score ≥7): an evidence-based analysis.docx

    No full text
    ObjectiveTo evaluate the current literature comparing outcomes of robotic partial nephrectomy (RPN) versus laparoscopic partial nephrectomy (LPN) treating complex renal tumors (RENAL nephrometry score ≥7).MethodsWe systematically searched the Cochrane Library, PubMed, Google Scholar, EMBASE, and Scopus databases up to March 2023. Review Manager 5.4 performed a pooled analysis of the data for random effects. Besides, sensitivity and subgroup analyses to explore heterogeneity, Newcastle-Ottawa scale, and GRADE to evaluate study quality and level of evidence.ResultsEight observational studies comprising 1346 patients (RPN: 695; LPN: 651) were included in this study. Compared to LPN, RPN had a shorter operative time (OT) (weight mean difference [WMD]: -14.73 min; p = 0.0003), shorter warm ischemia time (WIT) (WMD: -3.47 min; p = 0.002), lower transfusion rate (odds ratio [OR]: 0.66; p = 0.04), shorter length of stay (LOS) (WMD: -0.65 days; p ConclusionPatients with complex renal tumors (RENAL score ≥7), RPN is superior to LPN in decreasing the OT, WIT, LOS, transfusion rate, change in eGFR and the incidence of intraoperative complications while maintaining oncological control and avoiding a decline in renal function. However, our findings need further validation in a large-sample prospective randomized study.</p

    Image_1_Perioperative, functional, and oncological outcomes of robotic vs. laparoscopic partial nephrectomy for complex renal tumors (RENAL score ≥7): an evidence-based analysis.tif

    No full text
    ObjectiveTo evaluate the current literature comparing outcomes of robotic partial nephrectomy (RPN) versus laparoscopic partial nephrectomy (LPN) treating complex renal tumors (RENAL nephrometry score ≥7).MethodsWe systematically searched the Cochrane Library, PubMed, Google Scholar, EMBASE, and Scopus databases up to March 2023. Review Manager 5.4 performed a pooled analysis of the data for random effects. Besides, sensitivity and subgroup analyses to explore heterogeneity, Newcastle-Ottawa scale, and GRADE to evaluate study quality and level of evidence.ResultsEight observational studies comprising 1346 patients (RPN: 695; LPN: 651) were included in this study. Compared to LPN, RPN had a shorter operative time (OT) (weight mean difference [WMD]: -14.73 min; p = 0.0003), shorter warm ischemia time (WIT) (WMD: -3.47 min; p = 0.002), lower transfusion rate (odds ratio [OR]: 0.66; p = 0.04), shorter length of stay (LOS) (WMD: -0.65 days; p ConclusionPatients with complex renal tumors (RENAL score ≥7), RPN is superior to LPN in decreasing the OT, WIT, LOS, transfusion rate, change in eGFR and the incidence of intraoperative complications while maintaining oncological control and avoiding a decline in renal function. However, our findings need further validation in a large-sample prospective randomized study.</p

    Investigation of CO<sub>2</sub> Capture in Three-Dimensional Full-Loop Integrated Bubbling-Transport Bed Adsorber

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    Carbon capture using solid sorbents in fluidized bed reactors has attracted increasing attention. However, optimized design and operation require excellent control over the gas–solid contact and sorbent circulation between the adsorber and desorber reactors. In this study, the hydrodynamics and CO2 capture process using potassium-based solid sorbents in a full-loop integrated system consisting of a bubbling-transport bed adsorber and a bubbling bed desorber are investigated by using a three-dimensional two-fluid model (TFM), in which the operating parameters can be realistically adjusted. Results show that the sorbent circulation rate increases with the gas velocity in the central pipe and with the static bed height in the bubbling section of the adsorber. The pressure distribution, sorbent concentration, and distributions of the gas and solid velocities are explored, and optimized gas velocities in the bubbling section and the central pipe are recommended. The CO2 capture efficiency increases as the water vapor concentration in the inlet flue gas is increased from 8 to 18%, and the optimal water vapor concentration is identified as 14%. The results of this study are useful for the design and optimization of CO2 capture reactors with solid sorbents

    CO<sub>2</sub> Capture Performance of Na<sub>2</sub>CO<sub>3</sub>/γ-Al<sub>2</sub>O<sub>3</sub> Sorbent Modified with Organic Acid

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    Sodium-based sorbents (Na2CO3/γ-Al2O3) hold significant potential for commercial application in CO2 capture. The key point in optimizing the sorbent is to enhance its reaction activity and adsorption capacity. This study utilized organic acids as modifiers for Na2CO3/γ-Al2O3 sorbents and examined the performance of the sorbents in CO2 capture before and after modification. The results show that the organic acid modification plays a crucial role in adjusting the surface hydroxyl groups, reducing the grain size of the active component, and optimizing the ratio of high-index crystal surface exposure. The novel sorbent, modified with citric acid monohydrate, exhibited an exceptional reaction performance. It achieved a carbonation conversion rate of 88.9% when modified with citric acid at an equivalent ratio of 2.5, representing a substantial enhancement of 31% from the bare sample. The organic acid modification significantly contributes to optimizing the performance of sodium-based sorbents, thereby advancing their potential for practical CO2 capture applications
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