BACKGROUND Varicocele embolization,a minimally invasive treatment for symptomatic varicoceles,carries a rare risk of complications like ureteral obstruction and hydronephrosis.This case report documents such a case to...BACKGROUND Varicocele embolization,a minimally invasive treatment for symptomatic varicoceles,carries a rare risk of complications like ureteral obstruction and hydronephrosis.This case report documents such a case to raise awareness of these potential complications and showcase minimally invasive surgical management as a successful solution.CASE SUMMARY A 35-year-old male presented with flank pain and hematuria following varicocele embolization.Imaging confirmed left ureteral obstruction and hydronephrosis.Laparoscopic ureterolysis successfully removed the embolization coil and repaired the ureter,resolving the patient's symptoms.Follow-up at six months and two years showed sustained improvement.CONCLUSION Minimally invasive surgery offers an effective treatment option for rare complications like ureteral obstruction arising from varicocele embolization.展开更多
目的探讨以问题为导向的教学法(problerm-based learning,PBL)、情景教学法联合放射学信息系统(radiography information system,RIS)在超声医学本科实习教学中的应用价值。方法选取2020年6月—2022年6月在重庆医科大学附属大学城医院...目的探讨以问题为导向的教学法(problerm-based learning,PBL)、情景教学法联合放射学信息系统(radiography information system,RIS)在超声医学本科实习教学中的应用价值。方法选取2020年6月—2022年6月在重庆医科大学附属大学城医院超声科实习的医学影像专业本科实习生48名为研究对象,随机分为观察组24名学生,对照组24名学生,察组采用PBL、情景教学法联合RIS进行教学,对照组采用传统教学法进行教学,对2组出科考核成绩(理论、操作技能)、问卷调查进行比较。结果观察组的出科成绩理论为(88.24±2.18)分,操作为(84.47±3.49)分,均高于对照组的出科成绩理论(74.48±2.32)分,操作(71.33±3.24)分,差异有统计学意义(P<0.001);观察组满意度为95.83%,对照组满意度为79.17%,差异有统计学意义(P<0.05);观察组83.33%的学生认为PBL教学法+情景教学+RIS激发了学习兴趣,87.50%的学生认为训练了临床思维能力,91.67%的学生认为培养了团队协作能力,83.33%的学生认为提高了沟通能力,而对照组54.17%学生认为传统教学激发了学习兴趣,54.17%的学生认为训练了临床思维能力,45.83%的学生认为培养了团队协作能力,50.00%的学生认为提高了沟通能力,观察组的学习兴趣、学习主动性、团队协作意识、人文关怀意识、沟通能力、理论知识掌握、技能操作熟练程度、临床思维能力方面均优于对照组,差异有统计学意义(P<0.05)。结论PBL、情景学法联合RIS在超声实习教学中不仅有助于提高学生的专业素养,还有助于提高学生的综合素质,能提高教学效果,提升学生对教学的满意度。展开更多
Objective:This study aimed to explore the global,prevalence,and risk factors of fever after percutaneous nephrolithotomy(PCNL)by conducting a systematic review and meta-analysis.Methods:The high-sensitivity searching ...Objective:This study aimed to explore the global,prevalence,and risk factors of fever after percutaneous nephrolithotomy(PCNL)by conducting a systematic review and meta-analysis.Methods:The high-sensitivity searching was conducted without time limitation until December 30,2020 in Web of Sciences,Scopus,and PubMed based on inclusion and exclusion criteria.Results:The prevalence rates of fever and sepsis among patient undergoing PCNL were estimated 9.5%(95%confidence interval[CI]:9.3%-9.7%),and 4.5%(95%CI:4.2%-4.8%),respectively.Nephrostomy tube was used in 9.96%(95%CI:9.94%-9.97%)of patients.The mean preoperative white blood cells of patients were 6.401×109/L;18.3%and 4.55%of patients were considered as the positive urinary culture and pyuria,respectively.About 20.4%of patients suffered from residual stones.The odds ratios(ORs)of fever in patients who suffering from diabetes mellitus,hydronephrosis,staghorn stones,and blood transfusion were 4.62(95%CI:2.95-7.26),1.04(95%CI:0.81-1.34),2.57(95%CI:0.93-7.11),and 2.65(95%CI:1.62-4.35),respectively.Patients who underwent PCNL in prone position were more likely to develop fever(OR:1.23;95%CI:0.75-2.00)than patients in supine position.Conclusion:The current study showed that patients who suffer from diabetes mellitus,hydronephrosis,staghorn stones,nephrostomy tube or double-J stent,blood transfusion,and also patients who underwent PCNL in prone position surgery are more likely to develop a postoperative fever after PCNL.展开更多
研究了一种透射反射双功能可重构智能表面(Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surface,STAR-RIS)辅助的无线携能通信(Simultaneous Wireless Information and Power Transfer,SWIPT)系统。部署STA...研究了一种透射反射双功能可重构智能表面(Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surface,STAR-RIS)辅助的无线携能通信(Simultaneous Wireless Information and Power Transfer,SWIPT)系统。部署STAR-RIS以辅助从多天线接入点(Access Point,AP)到多个单天线信息解码接收器(Information Decoding Receiver,IDR)和能量收集接收器(Energy Harvesting Receiver,EHR)的信息或功率传输。目标是通过联合优化其发射预编码矩阵及STAR-RIS的反射和透射系数矩阵,在IDR可实现通信速率和EHRs的能量收集量约束下,使AP的发射功率最小化。然而,这个优化问题是非凸的,变量之间有着复杂的耦合。为了解决这一问题,采用交替优化算法解耦耦合的变量,对发射预编码矩阵及STAR-RIS的反射和透射系数矩阵可以分别使用半正定松弛(Semidefinite Relaxation,SDR)算法和基于惩罚的算法进行优化。仿真结果表明,STAR-RIS系统方案可以获得比传统的仅反射或仅透射RIS更好的性能。展开更多
Psoas muscle is a rare location for hydatid disease. Here we present a case of infected hydatid cyst left psoas muscle presenting as left flank pain, fever, local flank tenderness, and raised blood counts. Preoperativ...Psoas muscle is a rare location for hydatid disease. Here we present a case of infected hydatid cyst left psoas muscle presenting as left flank pain, fever, local flank tenderness, and raised blood counts. Preoperative diagnoses was made by Ultrasonography (USG) and Computed Tomography (CT) abdomen, although serology for hydatid disease was negative.展开更多
文摘BACKGROUND Varicocele embolization,a minimally invasive treatment for symptomatic varicoceles,carries a rare risk of complications like ureteral obstruction and hydronephrosis.This case report documents such a case to raise awareness of these potential complications and showcase minimally invasive surgical management as a successful solution.CASE SUMMARY A 35-year-old male presented with flank pain and hematuria following varicocele embolization.Imaging confirmed left ureteral obstruction and hydronephrosis.Laparoscopic ureterolysis successfully removed the embolization coil and repaired the ureter,resolving the patient's symptoms.Follow-up at six months and two years showed sustained improvement.CONCLUSION Minimally invasive surgery offers an effective treatment option for rare complications like ureteral obstruction arising from varicocele embolization.
文摘目的探讨以问题为导向的教学法(problerm-based learning,PBL)、情景教学法联合放射学信息系统(radiography information system,RIS)在超声医学本科实习教学中的应用价值。方法选取2020年6月—2022年6月在重庆医科大学附属大学城医院超声科实习的医学影像专业本科实习生48名为研究对象,随机分为观察组24名学生,对照组24名学生,察组采用PBL、情景教学法联合RIS进行教学,对照组采用传统教学法进行教学,对2组出科考核成绩(理论、操作技能)、问卷调查进行比较。结果观察组的出科成绩理论为(88.24±2.18)分,操作为(84.47±3.49)分,均高于对照组的出科成绩理论(74.48±2.32)分,操作(71.33±3.24)分,差异有统计学意义(P<0.001);观察组满意度为95.83%,对照组满意度为79.17%,差异有统计学意义(P<0.05);观察组83.33%的学生认为PBL教学法+情景教学+RIS激发了学习兴趣,87.50%的学生认为训练了临床思维能力,91.67%的学生认为培养了团队协作能力,83.33%的学生认为提高了沟通能力,而对照组54.17%学生认为传统教学激发了学习兴趣,54.17%的学生认为训练了临床思维能力,45.83%的学生认为培养了团队协作能力,50.00%的学生认为提高了沟通能力,观察组的学习兴趣、学习主动性、团队协作意识、人文关怀意识、沟通能力、理论知识掌握、技能操作熟练程度、临床思维能力方面均优于对照组,差异有统计学意义(P<0.05)。结论PBL、情景学法联合RIS在超声实习教学中不仅有助于提高学生的专业素养,还有助于提高学生的综合素质,能提高教学效果,提升学生对教学的满意度。
文摘Objective:This study aimed to explore the global,prevalence,and risk factors of fever after percutaneous nephrolithotomy(PCNL)by conducting a systematic review and meta-analysis.Methods:The high-sensitivity searching was conducted without time limitation until December 30,2020 in Web of Sciences,Scopus,and PubMed based on inclusion and exclusion criteria.Results:The prevalence rates of fever and sepsis among patient undergoing PCNL were estimated 9.5%(95%confidence interval[CI]:9.3%-9.7%),and 4.5%(95%CI:4.2%-4.8%),respectively.Nephrostomy tube was used in 9.96%(95%CI:9.94%-9.97%)of patients.The mean preoperative white blood cells of patients were 6.401×109/L;18.3%and 4.55%of patients were considered as the positive urinary culture and pyuria,respectively.About 20.4%of patients suffered from residual stones.The odds ratios(ORs)of fever in patients who suffering from diabetes mellitus,hydronephrosis,staghorn stones,and blood transfusion were 4.62(95%CI:2.95-7.26),1.04(95%CI:0.81-1.34),2.57(95%CI:0.93-7.11),and 2.65(95%CI:1.62-4.35),respectively.Patients who underwent PCNL in prone position were more likely to develop fever(OR:1.23;95%CI:0.75-2.00)than patients in supine position.Conclusion:The current study showed that patients who suffer from diabetes mellitus,hydronephrosis,staghorn stones,nephrostomy tube or double-J stent,blood transfusion,and also patients who underwent PCNL in prone position surgery are more likely to develop a postoperative fever after PCNL.
文摘研究了一种透射反射双功能可重构智能表面(Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surface,STAR-RIS)辅助的无线携能通信(Simultaneous Wireless Information and Power Transfer,SWIPT)系统。部署STAR-RIS以辅助从多天线接入点(Access Point,AP)到多个单天线信息解码接收器(Information Decoding Receiver,IDR)和能量收集接收器(Energy Harvesting Receiver,EHR)的信息或功率传输。目标是通过联合优化其发射预编码矩阵及STAR-RIS的反射和透射系数矩阵,在IDR可实现通信速率和EHRs的能量收集量约束下,使AP的发射功率最小化。然而,这个优化问题是非凸的,变量之间有着复杂的耦合。为了解决这一问题,采用交替优化算法解耦耦合的变量,对发射预编码矩阵及STAR-RIS的反射和透射系数矩阵可以分别使用半正定松弛(Semidefinite Relaxation,SDR)算法和基于惩罚的算法进行优化。仿真结果表明,STAR-RIS系统方案可以获得比传统的仅反射或仅透射RIS更好的性能。
文摘Psoas muscle is a rare location for hydatid disease. Here we present a case of infected hydatid cyst left psoas muscle presenting as left flank pain, fever, local flank tenderness, and raised blood counts. Preoperative diagnoses was made by Ultrasonography (USG) and Computed Tomography (CT) abdomen, although serology for hydatid disease was negative.
