Objective: To examine the effect of warm and cold ischemia on functions of the operated kidney in cases with a normal contralateral kidney undergoing nephron sparing surgery. Methods: This study enrolled 40 patients w...Objective: To examine the effect of warm and cold ischemia on functions of the operated kidney in cases with a normal contralateral kidney undergoing nephron sparing surgery. Methods: This study enrolled 40 patients with a normal contralateral kidney and without a renal function threatening risk factor, who were operated with NSS. The patients were randomized at admission. They were divided into 2 equal groups as warm and cold ischemia. An ice application for 10 minutes was done to cold ischemia group after clamping renal artery. Renal functions were evaluated with Technesium-99m-Dimercaptosuccinic Acid (DMSA) and serum creatinine at the preoperative and postoperative (day 1, day 15, month 6, and month 12) period. Statistical analysis was done with Mann Whitney U test, Wilcoxon Signed Rank test, and Fredman test. A p value below 0.05 was considered statistically significant. Results: There were no significant differences between the groups in terms of age, body mass index, ischemia time, tumor size, amount of hemorrhage, and procedure time. Both groups had a significantly higher DMSA uptake at the preoperative period compared with the postoperative period (postoperative day 1, day 15, month 6, and month 12) (p 0.001). However, both groups had similar DMSA uptake results at the postoperative period. Preoperative and postoperative creatinine levels were not significantly different from each other in both groups. Conclusion: Based on tumor localization, nephron sparing surgery without use of superficial cooling appears as a viable option for small renal masses.展开更多
The standard approach to organ preservation in liver transplantation is by static cold storage and the time between the cross-clamping of a graft in a donor and its reperfusion in the recipient is defined as cold isch...The standard approach to organ preservation in liver transplantation is by static cold storage and the time between the cross-clamping of a graft in a donor and its reperfusion in the recipient is defined as cold ischemia time(CIT).This simple definition reveals a multifactorial time frame that depends on donor hepatectomy time,transit time,and recipient surgery time,and is one of the most important donor-related risk factors which may influence the graft and recipient’s survival.Recently,the growing demand for the use of marginal liver grafts has prompted scientific exploration to analyze ischemia time factors and develop different organ preservation strategies.This review details the CIT definition and analyzes its different factors.It also explores the most recent strategies developed to implement each timestamp of CIT and to protect the graft from ischemic injury.展开更多
目的:观察御寒暖胃膏对胃癌前病变大鼠胃黏膜的影响。方法:将50只SD大鼠随机分为正常组、模型组、御寒暖胃膏贴敷胃经穴组、御寒暖胃膏贴敷对照点组和药物对照组,每组各10只。采用综合干预方法复制慢性萎缩性胃炎癌前病变大鼠模型,正常...目的:观察御寒暖胃膏对胃癌前病变大鼠胃黏膜的影响。方法:将50只SD大鼠随机分为正常组、模型组、御寒暖胃膏贴敷胃经穴组、御寒暖胃膏贴敷对照点组和药物对照组,每组各10只。采用综合干预方法复制慢性萎缩性胃炎癌前病变大鼠模型,正常组喂饲标准饲料,不予任何处理。模型组自第21周开始,每天捆绑1 h,并予胶布贴敷腹部及双下肢,每只每天按0.001 m L·g^(-1)的剂量经口灌服纯净水。御寒暖胃膏贴敷胃经穴组、对照点组自第21周开始,每天将各组大鼠捆缚于鼠板,将膏药涂于所选部位上,每日1 h。每只每天按0.001 m L·g-1的剂量经口灌服纯净水。药物对照组给予维酶素溶液,按21.6 mg·kg^(-1)的药量给药,每日1次,每天捆绑1 h,并予胶布贴敷腹部皮肤及双下肢。肉眼下观察大鼠胃黏膜损伤指数,光镜下观察胃黏膜组织的病理变化,彩色多普勒观察胃黏膜的血流量。结果:与模型组比较,御寒暖胃膏贴敷胃经穴组和药物对照组大鼠胃黏膜损伤指数值均显著降低,差异具有统计学意义(P<0.005);胃黏膜组织的病理损伤得到明显的修复、胃黏膜血流量均显著升高,差异具有统计学意义(P<0.005)。御寒暖胃膏贴敷对照点组大鼠胃黏膜损伤指数值未见明显降低,差异无统计学意义(P>0.005);胃黏膜组织的病理损伤未得到明显修复、胃黏膜血流量未见显著升高,差异无统计学意义(P>0.005)。结论:御寒暖胃膏贴敷胃经穴可以促进慢性萎缩性胃炎癌前病变大鼠胃黏膜损伤的修复,增加胃黏膜的血流量,并且存在经脉—脏腑特异相关性。展开更多
文摘Objective: To examine the effect of warm and cold ischemia on functions of the operated kidney in cases with a normal contralateral kidney undergoing nephron sparing surgery. Methods: This study enrolled 40 patients with a normal contralateral kidney and without a renal function threatening risk factor, who were operated with NSS. The patients were randomized at admission. They were divided into 2 equal groups as warm and cold ischemia. An ice application for 10 minutes was done to cold ischemia group after clamping renal artery. Renal functions were evaluated with Technesium-99m-Dimercaptosuccinic Acid (DMSA) and serum creatinine at the preoperative and postoperative (day 1, day 15, month 6, and month 12) period. Statistical analysis was done with Mann Whitney U test, Wilcoxon Signed Rank test, and Fredman test. A p value below 0.05 was considered statistically significant. Results: There were no significant differences between the groups in terms of age, body mass index, ischemia time, tumor size, amount of hemorrhage, and procedure time. Both groups had a significantly higher DMSA uptake at the preoperative period compared with the postoperative period (postoperative day 1, day 15, month 6, and month 12) (p 0.001). However, both groups had similar DMSA uptake results at the postoperative period. Preoperative and postoperative creatinine levels were not significantly different from each other in both groups. Conclusion: Based on tumor localization, nephron sparing surgery without use of superficial cooling appears as a viable option for small renal masses.
文摘The standard approach to organ preservation in liver transplantation is by static cold storage and the time between the cross-clamping of a graft in a donor and its reperfusion in the recipient is defined as cold ischemia time(CIT).This simple definition reveals a multifactorial time frame that depends on donor hepatectomy time,transit time,and recipient surgery time,and is one of the most important donor-related risk factors which may influence the graft and recipient’s survival.Recently,the growing demand for the use of marginal liver grafts has prompted scientific exploration to analyze ischemia time factors and develop different organ preservation strategies.This review details the CIT definition and analyzes its different factors.It also explores the most recent strategies developed to implement each timestamp of CIT and to protect the graft from ischemic injury.
文摘目的:观察御寒暖胃膏对胃癌前病变大鼠胃黏膜的影响。方法:将50只SD大鼠随机分为正常组、模型组、御寒暖胃膏贴敷胃经穴组、御寒暖胃膏贴敷对照点组和药物对照组,每组各10只。采用综合干预方法复制慢性萎缩性胃炎癌前病变大鼠模型,正常组喂饲标准饲料,不予任何处理。模型组自第21周开始,每天捆绑1 h,并予胶布贴敷腹部及双下肢,每只每天按0.001 m L·g^(-1)的剂量经口灌服纯净水。御寒暖胃膏贴敷胃经穴组、对照点组自第21周开始,每天将各组大鼠捆缚于鼠板,将膏药涂于所选部位上,每日1 h。每只每天按0.001 m L·g-1的剂量经口灌服纯净水。药物对照组给予维酶素溶液,按21.6 mg·kg^(-1)的药量给药,每日1次,每天捆绑1 h,并予胶布贴敷腹部皮肤及双下肢。肉眼下观察大鼠胃黏膜损伤指数,光镜下观察胃黏膜组织的病理变化,彩色多普勒观察胃黏膜的血流量。结果:与模型组比较,御寒暖胃膏贴敷胃经穴组和药物对照组大鼠胃黏膜损伤指数值均显著降低,差异具有统计学意义(P<0.005);胃黏膜组织的病理损伤得到明显的修复、胃黏膜血流量均显著升高,差异具有统计学意义(P<0.005)。御寒暖胃膏贴敷对照点组大鼠胃黏膜损伤指数值未见明显降低,差异无统计学意义(P>0.005);胃黏膜组织的病理损伤未得到明显修复、胃黏膜血流量未见显著升高,差异无统计学意义(P>0.005)。结论:御寒暖胃膏贴敷胃经穴可以促进慢性萎缩性胃炎癌前病变大鼠胃黏膜损伤的修复,增加胃黏膜的血流量,并且存在经脉—脏腑特异相关性。
