目的评估维持性血液透析(maintenance hemodialysis,MHD)动静脉内瘘右利手患者的双侧上肢功能,了解动静脉内瘘对上肢功能的影响及内瘘侧上肢功能的影响因素。方法横断面研究,纳入北京市6家血液透析中心的MHD动静脉内瘘且右利手患者,收...目的评估维持性血液透析(maintenance hemodialysis,MHD)动静脉内瘘右利手患者的双侧上肢功能,了解动静脉内瘘对上肢功能的影响及内瘘侧上肢功能的影响因素。方法横断面研究,纳入北京市6家血液透析中心的MHD动静脉内瘘且右利手患者,收集人口学资料、生化资料、握力、关节活动度及简易上肢功能检查(simple test for evaluating hand function,STEF)等上肢功能指标。内瘘侧及非内瘘侧上肢功能的比较采用t检验(或非参数检验),采用多元线性回归分析MHD患者动静脉内瘘侧握力的影响因素。结果共入组MHD患者90例,其中男性51例(56.7%),年龄(59.63±10.60)岁,中位透析龄62.50(24.00,113.00)月。患者非内瘘侧握力高于内瘘侧握力(t=-5.133,P<0.001);多元线性回归结果显示MHD患者内瘘侧握力与血肌酐(β=0.353,P<0.001)、认知功能评分(β=0.223,P=0.006)呈正相关,与尿素清除指数(Kt/V)呈负相关(β=-0.235,P=0.007),男性握力大于女性(β=-0.253,P=0.004)。非内瘘侧腕关节尺偏的角度大于内瘘侧(t=-2.814,P=0.006)。在STEF各项操作中,内瘘侧在大球(t=2.327,P=0.021)、大圆片(t=2.472,P=0.015)、布(t=2.688,P=0.008)项目中操作时间长于无内瘘侧。结论MHD患者内瘘侧握力、关节活动度及灵活性均存在下降,影响内瘘侧握力的因素包括性别、血肌酐、Kt/V和认知功能评分。展开更多
Arteriovenous fistulas have a substantial impact on systemic hemodynamics, however their effect on extracorporeal circulation is not well understood. We report our clinical observation on the management under extracor...Arteriovenous fistulas have a substantial impact on systemic hemodynamics, however their effect on extracorporeal circulation is not well understood. We report our clinical observation on the management under extracorporeal circulation of a patient with renal insufficiency with a high-flow arteriovenous fistula. This is a 59-year-old man who was referred to us for surgical treatment of ischemic coronary artery disease in a context of anuric chronic renal failure. Hypothermia at 32°C is started from the start in CEC due to hyperflow at the level of the arteriovenous fistula. We performed two coronary artery bypasses of the marginal and IVA via the two internal thoracic arteries. The patient is hemofiltered in order to avoid hyperkalaemia and possibly avoid fluid overload related to filling per CEC. The clamping time was 71 minutes and the SCC lasted 141 minutes. There was no homologous transfusion in the operating room. It turns out that the input/output balance is zero at the end of the CEC. The postoperative course was simple.展开更多
Arteriovenous graft (AVG) is artificially made with graft for hemodialysis in the patients with renal failure. Stenosis in the arterial or venous anastomosis of AVG results in its malfunction. Here, we made an AVG hem...Arteriovenous graft (AVG) is artificially made with graft for hemodialysis in the patients with renal failure. Stenosis in the arterial or venous anastomosis of AVG results in its malfunction. Here, we made an AVG hemodynamic model with three different anastomotic angles (20°, 30°, 40°) and analyzed hemodynamic parameters such as velocity vectors, WSS and OSI in the arterial and venous anastomosis to find what helps in developing new surgical techniques to reduce stenosis in the anastomosis. Recirculation flow, low WSS and high OSI in the venous anastomosis were demonstrated in 30° and 40°?models, and recirculation flow, high WSS and high OSI in the arterial anastomosis were shown in all models. Conclusively, higher anastomosis angle in the venous anastomosis cause stenosis, but stenosis in the arterial anastomosis happens irregardless of anastomosis angle.展开更多
文摘目的评估维持性血液透析(maintenance hemodialysis,MHD)动静脉内瘘右利手患者的双侧上肢功能,了解动静脉内瘘对上肢功能的影响及内瘘侧上肢功能的影响因素。方法横断面研究,纳入北京市6家血液透析中心的MHD动静脉内瘘且右利手患者,收集人口学资料、生化资料、握力、关节活动度及简易上肢功能检查(simple test for evaluating hand function,STEF)等上肢功能指标。内瘘侧及非内瘘侧上肢功能的比较采用t检验(或非参数检验),采用多元线性回归分析MHD患者动静脉内瘘侧握力的影响因素。结果共入组MHD患者90例,其中男性51例(56.7%),年龄(59.63±10.60)岁,中位透析龄62.50(24.00,113.00)月。患者非内瘘侧握力高于内瘘侧握力(t=-5.133,P<0.001);多元线性回归结果显示MHD患者内瘘侧握力与血肌酐(β=0.353,P<0.001)、认知功能评分(β=0.223,P=0.006)呈正相关,与尿素清除指数(Kt/V)呈负相关(β=-0.235,P=0.007),男性握力大于女性(β=-0.253,P=0.004)。非内瘘侧腕关节尺偏的角度大于内瘘侧(t=-2.814,P=0.006)。在STEF各项操作中,内瘘侧在大球(t=2.327,P=0.021)、大圆片(t=2.472,P=0.015)、布(t=2.688,P=0.008)项目中操作时间长于无内瘘侧。结论MHD患者内瘘侧握力、关节活动度及灵活性均存在下降,影响内瘘侧握力的因素包括性别、血肌酐、Kt/V和认知功能评分。
文摘Arteriovenous fistulas have a substantial impact on systemic hemodynamics, however their effect on extracorporeal circulation is not well understood. We report our clinical observation on the management under extracorporeal circulation of a patient with renal insufficiency with a high-flow arteriovenous fistula. This is a 59-year-old man who was referred to us for surgical treatment of ischemic coronary artery disease in a context of anuric chronic renal failure. Hypothermia at 32°C is started from the start in CEC due to hyperflow at the level of the arteriovenous fistula. We performed two coronary artery bypasses of the marginal and IVA via the two internal thoracic arteries. The patient is hemofiltered in order to avoid hyperkalaemia and possibly avoid fluid overload related to filling per CEC. The clamping time was 71 minutes and the SCC lasted 141 minutes. There was no homologous transfusion in the operating room. It turns out that the input/output balance is zero at the end of the CEC. The postoperative course was simple.
文摘Arteriovenous graft (AVG) is artificially made with graft for hemodialysis in the patients with renal failure. Stenosis in the arterial or venous anastomosis of AVG results in its malfunction. Here, we made an AVG hemodynamic model with three different anastomotic angles (20°, 30°, 40°) and analyzed hemodynamic parameters such as velocity vectors, WSS and OSI in the arterial and venous anastomosis to find what helps in developing new surgical techniques to reduce stenosis in the anastomosis. Recirculation flow, low WSS and high OSI in the venous anastomosis were demonstrated in 30° and 40°?models, and recirculation flow, high WSS and high OSI in the arterial anastomosis were shown in all models. Conclusively, higher anastomosis angle in the venous anastomosis cause stenosis, but stenosis in the arterial anastomosis happens irregardless of anastomosis angle.
