目的:探讨基于CT三维重组技术的R.E.N.A.L.评分系统在腹腔镜肾部分切除术中的临床应用价值。方法:搜集我院2020年6月至2024年1月经手术治疗的79例肾肿瘤患者的临床及术前影像资料,根据术前肾脏CT三维重组结果,分析血管变异与肾脏热缺血...目的:探讨基于CT三维重组技术的R.E.N.A.L.评分系统在腹腔镜肾部分切除术中的临床应用价值。方法:搜集我院2020年6月至2024年1月经手术治疗的79例肾肿瘤患者的临床及术前影像资料,根据术前肾脏CT三维重组结果,分析血管变异与肾脏热缺血时间、手术总时间、术中出血量及术后并发症之间的关系,并进行R.E.N.A.L.评分。采用Logistic回归筛选出肾热缺血时间大于20 min的独立危险因素。结果:有无血管变异在肾脏热缺血时间、手术总时间、术中出血量及术后并发症之间无明显差异(P > 0.05)。R.E.N.A.L.总评分是肾热缺血时间大于20 min的独立危险因素(P P Objective: To explore the clinical application value of R.E.N.A.L. scoring system based on CT three-dimensional reconstruction technology in laparoscopic partial nephrectomy. Methods: The clinical and preoperative imaging data of 79 patients with renal tumors who underwent surgical treatment in our hospital from June 2020 to January 2024 were collected. According to the results of preoperative renal CT three-dimensional reconstruction, the relationship between vascular variation and renal warm ischemia time, total operation time, intraoperative bleeding and postoperative complications was analyzed, and R.E.N.A.L. score was performed. Logistic regression was used to screen out independent risk factors for renal warm ischemia time greater than 20 min. Results: There was no significant difference in renal warm ischemia time, total operation time, intraoperative blood loss and postoperative complications between the presence or absence of vascular variation (P > 0.05). The total R.E.N.A.L. score was an independent risk factor for renal warm ischemia time greater than 20 min (P P < 0.05). Conclusion: CT three-dimensional reconstruction can clearly understand the anatomical location of the kidney, tumor and blood vessels before surgery, thereby reducing the occurrence of perioperative complications.展开更多
Blood transfusion saves lives and reduces morbidity and mortality for a large number of diseases and clinical conditions, but it is not without danger. The aim of this study was to determine the seroprevalence of HIV ...Blood transfusion saves lives and reduces morbidity and mortality for a large number of diseases and clinical conditions, but it is not without danger. The aim of this study was to determine the seroprevalence of HIV and hepatitis B in blood donors received at the regional Blood Transfusion Centre of N’Zérékoré (Guinea). This was a 5-year retrospective analytical study. We included records of blood donors aged 18 to 60 years admitted to the N’Zérékoré Regional Blood Transfusion Centre for blood donation from January 2016 to December 2020. We performed a descriptive analysis followed by Chi-2 or Fish-er-exact tests and the Student or Wilcoxon test, followed by multivariate logistic regression. In this study, donor age ranged from 18 - 60 years, with a pre-dominance of donors aged 25 - 34 (44.2%). Male donors were the most represented in our study (79.0% versus 21.0% female). More than half of the donors were blood group O (55.6%). We observed a seroprevalence of 3.6% for HIV, 13.4% for HBsAg and 0.2% for co-infection. In our series, age 25 - 34 (OR = 1.89 and P = 0.001) and 35 - 44 for HIV (OR = 2.01 and P = 0.001), HBsAgserostatus (OR = 3.04 and P = 0.001) and blood donation history (OR of 3.04 and P = 0.001) were factors associated with HIV positivity (P < 0.05). In our study, HIV serostatus (OR = 3.04 and P = 0.001) and blood donation history (OR = 0.01 and P = 0.001) were factors associated with HBsAgseropositivity. We reported a high prevalence of HIV and HBsAg. Sex, serological status and blood donation history were associated factors.展开更多
This present research work focuses on the valorization of pig droppings for production of biogas in mono digestion and co-digestion with proportions of cow dung from the urban commune of N’Zérékoré. It...This present research work focuses on the valorization of pig droppings for production of biogas in mono digestion and co-digestion with proportions of cow dung from the urban commune of N’Zérékoré. It was carried out in December 2020 in the Physics laboratory of the University of N’Zérékoré. The anaerobic digestion process took 25 days in an almost constant ambient temperature of 25˚C. Five digesters were loaded on 12/06/2020, two of which with 1 kg of pig dung and 1 kg of cow dung both in mono-digestion. The 3 other digesters in co-digestion with different proportions of pig manure and cow dung. The substrate in each digester is diluted in 2 liters of water, with a proportion of (1/2). The main results obtained are: 1) the evolution of the temperature and pH during digestion process, 2) the average biogas productions 0.61 liters for (D1);1.20 liter for (D2);1.65 liter for (D3);1.51 liter for (D4) and 1.31 liter for (D5). The cumulative amounts of biogas are respectively: D1 (7.95 liters), D2 (15.60 liters), D3 (21.50 liters), D4 (19.65 liters) and D5 (17.05 liters). The total cumulative production is 81.75 liters at the end of the process. The originality of this research work is that the proposed model examines the relation between the daily biogas production and the variation of temperature, pH and pressure. The combustibility test showed the biogas produced during the first week was no combustible (contains less than 50% methane). Combustion started from the biogas produced from the 15th day and it is from the 20th day that a significant amount of stable yellow/blue flame was observed. The results of this study show the combination of pig manure and cow dung presents advantages for optimal biogas production.展开更多
文摘目的:探讨基于CT三维重组技术的R.E.N.A.L.评分系统在腹腔镜肾部分切除术中的临床应用价值。方法:搜集我院2020年6月至2024年1月经手术治疗的79例肾肿瘤患者的临床及术前影像资料,根据术前肾脏CT三维重组结果,分析血管变异与肾脏热缺血时间、手术总时间、术中出血量及术后并发症之间的关系,并进行R.E.N.A.L.评分。采用Logistic回归筛选出肾热缺血时间大于20 min的独立危险因素。结果:有无血管变异在肾脏热缺血时间、手术总时间、术中出血量及术后并发症之间无明显差异(P > 0.05)。R.E.N.A.L.总评分是肾热缺血时间大于20 min的独立危险因素(P P Objective: To explore the clinical application value of R.E.N.A.L. scoring system based on CT three-dimensional reconstruction technology in laparoscopic partial nephrectomy. Methods: The clinical and preoperative imaging data of 79 patients with renal tumors who underwent surgical treatment in our hospital from June 2020 to January 2024 were collected. According to the results of preoperative renal CT three-dimensional reconstruction, the relationship between vascular variation and renal warm ischemia time, total operation time, intraoperative bleeding and postoperative complications was analyzed, and R.E.N.A.L. score was performed. Logistic regression was used to screen out independent risk factors for renal warm ischemia time greater than 20 min. Results: There was no significant difference in renal warm ischemia time, total operation time, intraoperative blood loss and postoperative complications between the presence or absence of vascular variation (P > 0.05). The total R.E.N.A.L. score was an independent risk factor for renal warm ischemia time greater than 20 min (P P < 0.05). Conclusion: CT three-dimensional reconstruction can clearly understand the anatomical location of the kidney, tumor and blood vessels before surgery, thereby reducing the occurrence of perioperative complications.
文摘Blood transfusion saves lives and reduces morbidity and mortality for a large number of diseases and clinical conditions, but it is not without danger. The aim of this study was to determine the seroprevalence of HIV and hepatitis B in blood donors received at the regional Blood Transfusion Centre of N’Zérékoré (Guinea). This was a 5-year retrospective analytical study. We included records of blood donors aged 18 to 60 years admitted to the N’Zérékoré Regional Blood Transfusion Centre for blood donation from January 2016 to December 2020. We performed a descriptive analysis followed by Chi-2 or Fish-er-exact tests and the Student or Wilcoxon test, followed by multivariate logistic regression. In this study, donor age ranged from 18 - 60 years, with a pre-dominance of donors aged 25 - 34 (44.2%). Male donors were the most represented in our study (79.0% versus 21.0% female). More than half of the donors were blood group O (55.6%). We observed a seroprevalence of 3.6% for HIV, 13.4% for HBsAg and 0.2% for co-infection. In our series, age 25 - 34 (OR = 1.89 and P = 0.001) and 35 - 44 for HIV (OR = 2.01 and P = 0.001), HBsAgserostatus (OR = 3.04 and P = 0.001) and blood donation history (OR of 3.04 and P = 0.001) were factors associated with HIV positivity (P < 0.05). In our study, HIV serostatus (OR = 3.04 and P = 0.001) and blood donation history (OR = 0.01 and P = 0.001) were factors associated with HBsAgseropositivity. We reported a high prevalence of HIV and HBsAg. Sex, serological status and blood donation history were associated factors.
文摘This present research work focuses on the valorization of pig droppings for production of biogas in mono digestion and co-digestion with proportions of cow dung from the urban commune of N’Zérékoré. It was carried out in December 2020 in the Physics laboratory of the University of N’Zérékoré. The anaerobic digestion process took 25 days in an almost constant ambient temperature of 25˚C. Five digesters were loaded on 12/06/2020, two of which with 1 kg of pig dung and 1 kg of cow dung both in mono-digestion. The 3 other digesters in co-digestion with different proportions of pig manure and cow dung. The substrate in each digester is diluted in 2 liters of water, with a proportion of (1/2). The main results obtained are: 1) the evolution of the temperature and pH during digestion process, 2) the average biogas productions 0.61 liters for (D1);1.20 liter for (D2);1.65 liter for (D3);1.51 liter for (D4) and 1.31 liter for (D5). The cumulative amounts of biogas are respectively: D1 (7.95 liters), D2 (15.60 liters), D3 (21.50 liters), D4 (19.65 liters) and D5 (17.05 liters). The total cumulative production is 81.75 liters at the end of the process. The originality of this research work is that the proposed model examines the relation between the daily biogas production and the variation of temperature, pH and pressure. The combustibility test showed the biogas produced during the first week was no combustible (contains less than 50% methane). Combustion started from the biogas produced from the 15th day and it is from the 20th day that a significant amount of stable yellow/blue flame was observed. The results of this study show the combination of pig manure and cow dung presents advantages for optimal biogas production.
基金Supported by the National Natural Science Foundation of China(11871452,12071052the Natural Science Foundation of Henan(202300410338)the Nanhu Scholar Program for Young Scholars of XYNU。
