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微血管灌注
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  microvascular perfusion
    After administering all shed blood, though the mean aortic pressures of control and ECP groups were recovered nearly to the basic level, the increase of microvascular perfusion in ECP groups was higher significantly than that in control groups.
    在回输失血复苏后,对照组和反搏组主动脉平均压力恢复接近失血前水平,但反搏组微血管灌注的回升却明显高于对照组。
短句来源
    Objective:To evaluate the relationship between ST segment changes and myocardial microvascular perfusion in patients with acute myocardial infarction treated by direct angioplasty and stenting. To explore the feasibility of ST segment changes in predicting microvascular function.
    目的 :评价急性心肌梗死直接经皮冠状动脉腔内成形术 (PTCA)和支架置入术后ST段变化与心肌微血管灌注之间的关系 ,探讨ST段变化预测心肌微血管功能的可行性。
短句来源
  microvascular perfusion
    After administering all shed blood, though the mean aortic pressures of control and ECP groups were recovered nearly to the basic level, the increase of microvascular perfusion in ECP groups was higher significantly than that in control groups.
    在回输失血复苏后,对照组和反搏组主动脉平均压力恢复接近失血前水平,但反搏组微血管灌注的回升却明显高于对照组。
短句来源
    Objective:To evaluate the relationship between ST segment changes and myocardial microvascular perfusion in patients with acute myocardial infarction treated by direct angioplasty and stenting. To explore the feasibility of ST segment changes in predicting microvascular function.
    目的 :评价急性心肌梗死直接经皮冠状动脉腔内成形术 (PTCA)和支架置入术后ST段变化与心肌微血管灌注之间的关系 ,探讨ST段变化预测心肌微血管功能的可行性。
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  “微血管灌注”译为未确定词的双语例句
    Sensitivity,specificity,positive and negative predictive values,and accuracy of the ∑STI were 87 5%,87 5%,93 3%,77 8%,and 87 5%,respectively.
    ∑STI变化预测心肌微血管灌注敏感性、特异性及准确性均为 87 5 % ,阳性预测值为 93 3 % ,阴性预测值为 77 8%。
短句来源
    Conclusion:Different ST segment changes are associated with different patterns of myocardial perfusion.
    结论 :急性心肌梗死成功再灌注治疗后不同的ST段变化与心肌微血管灌注有关 ;
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  microvascular perfusion
Within irreversibly injured (infarcted) regions microvascular perfusion can vary from nearly normal to nearly zero, even in the presence of an open infarct-related artery ('no-reflow').
      
Historically, non-invasive assessment of heterogeneous microvascular perfusion within myocardial infarcts has been problematic.
      
The new frontiers of CMR in heart failure hold the promise of unique insights quantifying myocardial iron, nonischemic fibrosis, microvascular perfusion, plaque characterization, and CMR-targeted intervention.
      
Both theno-reflow phenomenon and the events initiated by reflow - termed herein as thereflow-paradox - contribute to the failure of the nutritive microvascular perfusion and loss of tissue viability following ischemia and reperfusion.
      
We studied in vivo the effect of cyclosporine A (CsA) on both pancreatic islet vascularization and microvascular perfusion using intravital fluorescence microscopy and the dorsal skinfold chamber model in Syrian golden hamsters.
      
更多          
  microvascular perfusion
Within irreversibly injured (infarcted) regions microvascular perfusion can vary from nearly normal to nearly zero, even in the presence of an open infarct-related artery ('no-reflow').
      
Historically, non-invasive assessment of heterogeneous microvascular perfusion within myocardial infarcts has been problematic.
      
The new frontiers of CMR in heart failure hold the promise of unique insights quantifying myocardial iron, nonischemic fibrosis, microvascular perfusion, plaque characterization, and CMR-targeted intervention.
      
Both theno-reflow phenomenon and the events initiated by reflow - termed herein as thereflow-paradox - contribute to the failure of the nutritive microvascular perfusion and loss of tissue viability following ischemia and reperfusion.
      
We studied in vivo the effect of cyclosporine A (CsA) on both pancreatic islet vascularization and microvascular perfusion using intravital fluorescence microscopy and the dorsal skinfold chamber model in Syrian golden hamsters.
      
更多          


Effect of external counterpulsation(ECP) on cerebral and skin microvascular perfusion were observed in hemorhagic shock canines with Laser Doppler Flowmeter technique. ECP augmented mean aortic pressure and increased cerebral and skin microvascular perfusion obviously in hemorhagic shock canines. After administering all shed blood, though the mean aortic pressures of control and ECP groups were recovered nearly to the basic level, the increase of microvascular perfusion in ECP groups was higher significantly...

Effect of external counterpulsation(ECP) on cerebral and skin microvascular perfusion were observed in hemorhagic shock canines with Laser Doppler Flowmeter technique. ECP augmented mean aortic pressure and increased cerebral and skin microvascular perfusion obviously in hemorhagic shock canines. After administering all shed blood, though the mean aortic pressures of control and ECP groups were recovered nearly to the basic level, the increase of microvascular perfusion in ECP groups was higher significantly than that in control groups. The results indicated that pre-treatment with ECP during the shock period could improve microcirculatory disorder effectively and then be beneficial to microvascular perfusion during the resuscitation.

应用激光多普勒测定微血管血流灌注技术,观察体外反搏提高灌注压力对失血性休克犬大脑皮层及皮肤微血管血流灌注的作用。结果显示,体外反搏可明显提高休克犬主动脉平均压力,增加休克犬大脑皮层及皮肤微血管血流灌注。在回输失血复苏后,对照组和反搏组主动脉平均压力恢复接近失血前水平,但反搏组微血管灌注的回升却明显高于对照组。结果提示体外反搏在犬失血性休克期预处理能改善其微循环障碍,有利于复苏期微血管的灌注

Objective:To evaluate the relationship between ST segment changes and myocardial microvascular perfusion in patients with acute myocardial infarction treated by direct angioplasty and stenting.To explore the feasibility of ST segment changes in predicting microvascular function. Methods:The sum of ST segment elevation index (∑STI,the sum of ST segment elevation divided by the number of leads involved)was measured before and at 1,5,10,20,30 minutes and 12 hours after successful direct angioplasty and stentins.Intravenous...

Objective:To evaluate the relationship between ST segment changes and myocardial microvascular perfusion in patients with acute myocardial infarction treated by direct angioplasty and stenting.To explore the feasibility of ST segment changes in predicting microvascular function. Methods:The sum of ST segment elevation index (∑STI,the sum of ST segment elevation divided by the number of leads involved)was measured before and at 1,5,10,20,30 minutes and 12 hours after successful direct angioplasty and stentins.Intravenous myocardial contrast echocardiography(MCE)was performed within 12 hours after successful direct angioplasty and stenting.Twenty four patients were classified into two groups according to the perfusion pattern on MCE:Eight patients with MCE score 3 or 2 were defined as no reflow group,and 16 patients with MCE score 1 were defined as reflow group.MCE pictures were quantitively analyzed by MCE analyzing software provided by Virginia University. Results:After infarction related artery successful recanalization,myocardial perfusion within the risk area was observed in 16 patients,whereas a no reflow phenomenon occurred in 8.In patients with reflow,the ∑STI rapidly declined,whereas in patients with no reflow,no significant change was observed.Reduction of ≥50% ∑STI occurred in 14 of 16 patients with reflow and in 1 of 8 with no reflow ( P =0 0001) An additional increase of ≥30% ∑STI occurred in 7 patients with no reflow within 10 minutes after recanalization and 2 with reflow ( P =0 003).Sensitivity,specificity,positive and negative predictive values,and accuracy of the ∑STI were 87 5%,87 5%,93 3%,77 8%,and 87 5%,respectively.The 20 minute ∑STI after recanalization was well negatively correlated with the normalized A·β value(γ=-0 881, P =0 0001). Conclusion:Different ST segment changes are associated with different patterns of myocardial perfusion.The ST segment changes can predict the microvascular function early after successful reperfusion therapy for AMI.

目的 :评价急性心肌梗死直接经皮冠状动脉腔内成形术 (PTCA)和支架置入术后ST段变化与心肌微血管灌注之间的关系 ,探讨ST段变化预测心肌微血管功能的可行性。方法 :测量PTCA和支架置入术前及术后 1、5、10、2 0、3 0min及 12h内相关导联ST段抬高指数 (∑STI)。术后 12h内行静脉心肌声学造影 (MCE)。根据心肌灌注将 2 4例患者分为无再流者 8例 (MCE积分为 3分或 2分 ) ,再流者 16例(MCE积分为 1分 )。MCE图像用MCE图像分析软件进行定量分析。结果 :心肌梗死相关动脉成功重建后 ,16例患者危险区有再流 ,8例出现无再流现象 ;再流者 16例患者中 ,14例∑STI下降≥ 5 0 % ,而在无再流者 8例中只有 1例 (P =0 0 0 0 1) ;无再流者 7例在术后 10min内∑STI进一步抬高≥3 0 % ,而再流者仅有 2例 (P =0 0 0 3 )。∑STI变化预测心肌微血管灌注敏感性、特异性及准确性均为 87 5 % ,阳性预测值为 93 3 % ,阴性预测值为 77 8%。术后 2 0min的∑STI与标化A·...

目的 :评价急性心肌梗死直接经皮冠状动脉腔内成形术 (PTCA)和支架置入术后ST段变化与心肌微血管灌注之间的关系 ,探讨ST段变化预测心肌微血管功能的可行性。方法 :测量PTCA和支架置入术前及术后 1、5、10、2 0、3 0min及 12h内相关导联ST段抬高指数 (∑STI)。术后 12h内行静脉心肌声学造影 (MCE)。根据心肌灌注将 2 4例患者分为无再流者 8例 (MCE积分为 3分或 2分 ) ,再流者 16例(MCE积分为 1分 )。MCE图像用MCE图像分析软件进行定量分析。结果 :心肌梗死相关动脉成功重建后 ,16例患者危险区有再流 ,8例出现无再流现象 ;再流者 16例患者中 ,14例∑STI下降≥ 5 0 % ,而在无再流者 8例中只有 1例 (P =0 0 0 0 1) ;无再流者 7例在术后 10min内∑STI进一步抬高≥3 0 % ,而再流者仅有 2例 (P =0 0 0 3 )。∑STI变化预测心肌微血管灌注敏感性、特异性及准确性均为 87 5 % ,阳性预测值为 93 3 % ,阴性预测值为 77 8%。术后 2 0min的∑STI与标化A·β值存在显著的负相关 (γ =-0 881,P =0 0 0 0 1)。结论 :急性心肌梗死成功再灌注治疗后不同的ST段变化与心肌微血管灌注有关 ;急性心肌梗死再灌注治疗后早期ST段变化可预测心肌微血管功能。

 
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