血管阻力

结果：PAMD可增加脑血流量，降低脑血管阻力，对心脏功能无明显影响；

Results : PAMD can increase CBF and decrease CVR , but have no effect of cardiac function ;

A2、A3两组与其余各亚组比较，其平均动脉压、周围血管阻力和门脉血流虽有显著改善，但与B组比较仍有极显著性差异（P＜0.01）。

The MAP , SVR and PVF in group A2 and group A3 showed better improvement than those in other subgroups , but as compared with group B there were significant differences ( P < 0.01 ) .

B组在155min内仍保持较低的血管阻力；

In group B ( bovine blood ), resistance remained low at 155 min.

心率×收缩压乘积、周围血管阻力两组均无明显差异（P均＞0.05）。

Meanwhile rate-pressure product ( RPP ) and peripheral vascular resistance ( PVR ) had not significant changes between two groups ( P > 0.05 ) .

脉动指数（PI）、阻力指数（RI）、SD参数增高反映了新生儿脑血管阻力较高。

An increased PI , RI and SD reflected a high cerebral resistence in newborns .

血管阻力指数（RI）较正常人高。

The resistance index of vessels is higher than normal .

受体肺血管阻力为3.0~5.9wood单位，平均（4.3±1.4）wood单位；

Recipients ′ pulmonary vascular resistance ranged from 3.0 to 5.9 wood units [ mean ( 4.3 ± 1.4 ) wood units ] ;

脑血管阻力（R）通过计算获得，心音传感器放置在心前区，ECG记录标准Ⅱ导联。

A heart sound transducer was placed on the precordium . A standard II lead of ECG was used to record .

不同年龄组ESWL前后肾内小血管阻力指数变化及意义

Age-related changes in intrarenal vascular resistance index before and after ESWL

结果显示：EH病人大血管阻力指数增加、顺应性下降。

The result showed that resistance index of large vassels increased while compliance reduced in EH patients .

目的：探讨体外碎石（ESWL）前后不同年龄组肾内小血管阻力指数变化及意义。

Objective : Changes in the intrarenal vascular resistance before and after ESWL were studied .

肾血管阻力指数RI≥0.7者肾盂积水程度均≥15mm。

All vascular resist index ≥ 0.7 with extent of hydronephrosis ≥ 15mm .

ESWL前后肾内血管阻力和尿中GAL与NAG活性变化的意义

Changes in Intrarenal Vascular Resistance and the Levels of NAG and GAL before and after ESWL

目的观察失血性休克患者血浆肾上腺髓质素（ARM）与血管阻力变化，探讨ARM在失血性休克病理生理过程中的作用。

Objective To investigate the relationship between plasma adrenomedullin ( ARM ) level and systemic vascular resistance index ( SVRI ), and their role in the pathogenesis of hemorrhagic shock .

目的：研究刺五加叶皂苷（ASS）对麻醉犬器官血流及血管阻力的影响。方法：ASS按7.5、15.0、30.0mg。

Objective To study the effect of Acanthopanax senticosus saponins ( ASS ) on organ blood flow and vascular resistance in anesthetized dogs .

外周血管阻力（SVR）变化与CI相反，A和B组麻醉诱导及气管插管后SVR较基础值增加或变化不明显，而C组下降（P<0.05））。

The systemic vascular resistance ( SVR ) slightly increased or was unchanged in group A and B but was significantly decreased in group C after induction and intubation .

本研究观察3种抗高血压方案下，达到同等血压控制后，循环前胶原更新标志物&Ⅲ型胶原氨基端肽（PⅢNP）的改变和血管阻力的改变。

We observed the changes of circulating procollagen marker for type ⅲ collagen turnover rate , the N-terminal propeptide P ⅲ NP and vascular resistance in hypertensive patients treated with various antihypertensive regimens .

目的PTT是一项反映周围血管阻力和胸腔内压变化的无创指标，因此和微觉醒相关的血压改变可通过PTT检测。

Objective Pulse transit time ( PTT ) is a non-invasive index which reflects changes in peripheral vascular resistance and intra-thoracic pressure .

血小板活化因子（PAF）在肝脏中主要表现为增加肝脏血管阻力及糖原分解两大作用，同时还可介导超氧化物的释放、花生四烯酸的代谢、细胞因子的生成等。

Increasing hepatic vascular resistance and glycogenolysis are two principal effects induced by platelet-activating factor ( PAF ) in the liver .

与NS组比较，HS组和HSD治疗后肺血管阻力呈下降趋势。

There was a tendency for the pulmonary vascular resistance to decrease in HS and HSD groups as compared with NS group .

结论尼莫地平治疗HCH具有增加脑血流量、降低脑血管阻力、提高近期疗效的作用。

Conclusions Nimodipine can increases cerebral blood flow , decreases cerebral vascular resistence and improves short-term therapeutic outcome .

4周时HC组大鼠肾血管阻力指数显著性增加，8周时H组及HC组大鼠肾血管阻力指数均显著性增加。

The resistance index of the rats in group HC at the end of 4 weeks and in group H and group HC at the end of 8 weeks increased significantly .

对肾血流量和肾小球滤过率均无明显改变，但均使肾血流量/心输出量增高和肾血管阻力降低（P0.01，P0.05）。

But the ratio of renal blood flow to cardiac output all rose ( P 0 . 01 ) , whereas the renal vascular resistance all decreased ( P 0 . 05 ) .

在注入NOS抑制剂后总肺循环阻力、肺动脉阻力、体循环血管阻力均明显上升（P<0.05）。

Total pulmonary resistance ( TPR ), pulmonary vascular resistance ( PVR ) and systemic vascular resistance ( SVR ) were increased after injected NOS inhibitor ( P < 0.05 ) .

结果：脑梗塞、TIA患者早期脑血流量下降，脑血管阻力增加。

Results : The volume of cerebral blood flow was reduced and cerebral vascular resistance increased in the early stage of cerebral infarction and ischemic attacks .

妊娠期间子宫-胎盘血管阻力与血流的调节是非常复杂的，AngⅡ通过刺激舒血管物质前列腺素E和I的合成，维持血管压力稳定，保证妊娠时子宫-胎盘的血液供应。

Uterus-placenta vascular resistance and adjustment of blood flow is very sophisticated during pregnancy . Ang - ⅱ can keep blood pressure stabilization and sustain uterus-placenta blood supply by stimulating vasodilator synthesis that prostaglandin-E ,ⅰ .

结论拜新同在有效降低血压的同时，可降低肾脏血管阻力，使肾血流量和GFR明显增高。

Conclusion Slow release nifedipine substantially increases renal blood flow and GFR by decreasing renal vascular resistance and effectively decreasing systemic BP .

光镜观察肾组织学改变。结果HC组和H组血清总胆固醇及肾血管阻力指数显著性增加，而内生肌酐清除率、肾皮质一氧化氮含量显著性降低。

Results Total serum cholesterol and resistance indices of renal blood vessels increased significantly , while creatinine clearance rate and production of nitric oxide in the renal cortex decreased markedly in group HC and group H .

应用核素肾SPECT功能检查，结果表明：肾有效血浆流量、肾小球滤过率显著增加（P＜0.01），肾血管阻力显著降低（P＜0.01），而肾滤过分数不受影响。

SPECT were used for detecting renal function . The results of these evaluation indicated that there was significantly increasing in ERPF and GFR ( P0.01 ) and significant decreasing in resistance of renal vessel ( P0.01 ), and FF remained unchanged .

血流动力学参数中，血管阻力指数（RI）增高，而舒张末期血流速度（Vd）降低；

In the blood flow parameters , the blood vessel resistence index ( RI ) increased and the blood flow speed at the end of vasodilation ( Vd ) reduced .